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    1. INTRODUCTION

    INTRODUCTION TO COMPUTER AIDED DESIGN

    Engineering design graphics has made significant

    changes since the early 1980s. For the most part, these changes have occurred

    due to the evolution of computer-aided design (CAD). Before CAD, design

    was accomplished by traditional board drafting utilizing paper, pencil,

    straightedges, and various other manual drafting devices. Concurrently with

    manual drafting were sketching techniques, which allowed a designer to

    explore ideas freely without being constrained within the boundaries of drafting

    standards.

    Many of the drafting and design standards and

    techniques that existed primarily due to the limitations of manual drafting still

    exist today. Popular mid-range CAD packages still emphasize two-dimensional

    orthographic projection techniques. These techniques allow a design to be

    portrayed on a computer screen as it was once accomplished on a drafting

    table. Drafting standards have changed little since the beginning of CAD.These standards still place an emphasis on the two-dimensional representation

    of designs.

    Many engineering fields continue to rely on

    orthographic projection to represent design intent. Some fields, such as

    manufacturing and mechanical engineering, foster a paperless environment that

    does not require designs to be displayed orthographically. In this theoretically

    paperless environment products are designed, engineered, and produced

    without a hard-copy drawing. Designs are modeled within a CAD system and

    the electronic data is utilized concurrently in various departments, such as

    manufacturing, marketing, quality control, and production control.

    Additionally, CAD systems are becoming the heart of many product data

    management systems. Utilizing a computer network, CAD designs can be

    displayed throughout a corporation's intranet. With Internet capabilities, a

    design can be displayed using the World Wide Web.

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    Pro/ENGINEER BASICS

    Pro/ENGINEER provides mechanical engineers

    with an approach to mechanical design automation based on solid modeling

    technology and the following features.

    3-D MODELING

    The essential difference between Pro/ENGINEER

    and traditional CAD systems is that models created in Pro/ENGINEER exist as

    three-dimensional solids. Other 3-D modelers represent only the surface

    boundaries of the model. Pro/ENGINEER models the complete solid. This not

    only facilitates the creation of realistic geometry, but also allows for accurate

    model calculations, such as those for mass properties.

    PARAMETRIC DESIGN

    Dimensions such as angle, distance, and diameter

    control Pro/ENGINEER model geometry. You can create relationships that

    allow parameters to be automatically calculated based on the value of other

    parameters. When you modify the dimensions, the entire model geometry can

    update according to the relations you created.

    FEATURE-BASED MODELING

    Parametric modeling systems are often referred to

    as feature-based modelers. In a parametric modeling environment, parts are

    composed of features (Fig.). Features may comprise either positive space or

    negative space. Positive space features are composed of actual mass. An

    example of a positive space feature is an extruded boss. A negative space

    feature is where a part has a segment cut away or subtracted. An example of a

    negative space feature is a hole.

    Parametric modeling systems such as

    Pro/ENGINEER incorporate an intuitive way of constructing features. Often,

    the feature is first sketched in two dimensions and then either extruded,

    revolved, or swept to form the three-dimensional object. When sketching the

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    feature, design intent is developed in the model by adding dimensions and

    constraining the sketch.

    Features can be predefined or sketched. Examplesof predefined features include holes, rounds, and chamfers. Many parametric

    modeling packages incorporate advanced ways of modeling holes. Within a

    parametric modeling package, predefined holes can be simple, counter bored,

    countersunk, or drilled. Parametric modeling package hole command allows

    users the opportunity to sketch unique hole profiles, such as may be required

    for a counter bore. Sketched features are created by sketching a section that

    incorporates design intent. Sections may be extruded, revolved, or swept to add

    positive or negative space features.

    Compared to Boolean modeling, feature-based

    modeling is a more intuitive approach. In Boolean modeling, a common way toconstruct a hole is to model a solid cylinder and then subtract it from the parent

    feature. In a parametric design environment, a user can simply place the hole

    by using a predefined hole command or by cutting a circle through the part.

    With most Boolean-based modelers, if the user has to change a parameter of

    the hole, such as location or size, he or she has to plug the original hole, then

    subtract a second solid cylinder. To adjust a feature-based hole, the user can

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    Fig. 1.1 Feature in a model

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    change any parameter associated with the hole by modifying a dimension or

    parameter. Similarly, a feature's sketch can be redefined or modified.

    You create models in Pro/ENGINEER by buildingfeatures. These features have intelligence, in that they contain knowledge of

    their environment and adapt predictably to change. Each features asks the user

    for specific information based on the feature type. For example, a hole has a

    diameter, depth, and placement, while a round has a radius and edges to round.

    ASSOCIATIVITY

    Pro/ENGINEER is a fully-associative system. This

    means that a change in the design model anytime in the development process is

    propagated throughout the design, automatically updating all engineering

    deliverables, including assemblies, drawings, and manufacturing data.

    Associativity makes concurrent engineering possible by encouraging change,

    without penalty, at any point in the development cycle. This enables

    downstream functions to contribute their knowledge and expertise early in the

    development cycle.

    ENGINEERING GRAPHICS

    The fundamentals of engineering graphics and the

    displaying of three-dimensional (3D) designs on a two-dimensional surface

    have changed little since the advent of CAD. Despite the explosion of

    advanced 3D modeling packages, many design standards and techniques that

    once dominated manual drafting remain relevant today.

    Sketching is an important tool in the design process. Design modeling techniques using two-dimensional CAD, three-

    dimensional CAD, or manual drafting can restrict an individuals ability to

    work out a design problem. It takes time to place lines on a CAD system or to

    construct a solid model. Sketching allows a designer to work through a

    problem without being constrained by the standards associated with

    orthographic projection or by the time required to model on a CAD system.

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    There are two types of sketching techniques: artistic

    and technical. Many individuals believe that artistic sketching is a natural,

    inborn ability. This is not always the case. There are techniques and exercisesthat engineering students can perform that will improve their ability to think in

    three dimensions and solve problems utilizing artistic sketching skills. Despite

    this, few engineering students receive this type of training.

    When engineering or technology students are

    trained in sketching, it is usually the technical variety. Technical sketching is

    similar to traditional drafting and two-dimensional computer-aided drafting.

    This form of sketching enables a design to be displayed orthographically or

    pictorially through sketching techniques.

    The design process requires artistic sketching and

    technical sketching to be utilized together. Conceptual designs are often

    developed through artistic sketching methods. Then once a design concept is

    developed, technical sketches of the design can be drawn that will allow the

    designer to display meaningful design intent information. This information can

    then be used to develop orthographic drawings, prototypes, and/or computer

    models.

    The traditional way to display engineering designs

    is orthographic projection. Any object has six primary views These views are

    used to display the three primary dimensions of any feature: height, width, and

    depth. By selectively choosing a combination of the primary views, a detailer

    can graphically display the design form of an object. Often, three or fewerviews are all that are necessary to represent design intent. A combination of

    views such as the front, top, and right side will display all three primary

    dimensions of any feature. By incorporating dimensions and notes, design

    intent for an object can be displayed.

    Orthographic projection is not a natural way to

    display a design. The purpose for orthographic drawings is to show a design in

    such a way that it can be constructed or manufactured. Pictorial drawings are

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    often used to represent designs in a way that non-technically trained individuals

    can understand. Pictorial drawings display all three primary dimensions

    (height, width, and depth) in one view. There are many forms of pictorialdrawings, the most common of which are isometric, diametric, and trimetric.

    Naturally, objects appear to get smaller as one

    moves further away from them. This effect is known as perspective.

    Perspective is another form of pictorial drawing. Orthographic, isometric,

    diametric, and trimetric projections do not incorporate perspective. Perspective

    drawings are often used to display a final design concept that can be easily

    understood individuals with no technological training.

    Before an object can be manufactured or

    constructed, technical drawings are often produced. Technical drawings are

    used to display all the information necessary to properly build a product. These

    drawings consist of orthographic views, dimensions, notes, and details. Details

    are governed by standards that allow for ease of communications between

    individuals and organization.

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    2. PARAMETRIC MODELING CONCEPTS

    Parametric modeling is an approach to computer-

    aided design that gained prominence in the late 1980s. An assumption

    commonly held among CAD users is that similar modeling techniques exist for

    all CAD systems. To users that follow this assumption, the key to learning a

    different CAD system is to adapt to similar CAD commands. This is not

    entirely true when a two-dimensional CAD user tries to learn, for the first time,

    a parametric modeling application. Within parametric modeling systems,

    though, you can find commands that resemble 2D CAD commands. Often,

    these commands are used in a parametric modeling system just as they would

    be used in a 2D CAD package. The following is a partial list of commands that

    cross over from 2D CAD to Pro/ENGINEER.

    LINE

    The line option is used within Pro/ENGINEERs

    sketcher mode (or environment) as a tool to create sections. Within a 2D CAD

    package, precise line distances and angles can be entered using coordinate

    methods, such as absolute, relative, and polar. Pro/ENGINEER does not

    require an entity to be entered with a precise size. Feature size definitions are

    established after finishing the geometric layout of a features shape.

    CIRCLE

    As with the line command, the circle option is used

    within Pro/ENGINEERs sketcher environment. Precise circle size is not

    important when sketching the geometry.ARC

    As with the line and circle options, the arc

    command is used within

    Pro/ENGINEERs sketching environment. Pro/ENGINEERs are command

    also includes a fillet command for creating rounds at the intersection of two

    geometric entities.

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    DELETE

    The delete command is used within a variety of

    Pro/ENGINEER modes. Within the sketcher environment, delete is used to

    remove eometric entities such as lines, arcs, and circles. Within Part mode,

    delete is used to remove features from a part. For assembly models, the delete

    command is used to delete features from parts and to delete parts from

    assemblies.

    OFFSET

    Offset options can be found within various

    Pro/ENGINEER modes. Within the sketcher environment, existing part

    features can be offset to form sketching geometry. Additionally, planes, within

    Part and Assembly modes can be offset to form new datum planes.

    TRIM

    The trim command is used within Pro/ENGINEERs

    sketching environment. Geometric entities that intersect can be trimmed at their

    intersection point.

    MIRROR

    The mirror option is used within Pro/ENGINEERs

    Sketch and Part modes. Geometry created as a sketch can be mirrored across a

    centerline. Also, part features can be mirrored across a plane by executive the copy

    option.

    COPY

    The copy option is used within Part mode to copy

    existing features. Features can be copied linearly, mirrored over a plane, or

    rotated around an axis. Within Assembly mode, parts can be copied to create

    new parts.

    ARRAY

    Polar and rectangular array commands are common

    components in 2D CAD packages. Pro/ENGINEERs pattern command serves

    a similar function. Features may be patterned using existing dimensions.

    Selecting an angular dimension will create a circular pattern.

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    Parametric modeling presents a different approach

    to CAD, especially when compared to 2D drafting and Boolean-based 3D

    modeling. Oftentimes an experienced CAD user will have trouble learning a parametric modeling package. This is especially true when a user tries to

    approach 3D parametric modeling as he or she would approach Boolean solid

    modeling. They use similar concepts, but the approaches are different.

    RUNNING PRO/ENGINEER WITH DEFAULT SETTINGS

    The best way to learn Pro/ENGINEER is to run the

    product using the default settings installed on your system. Once you are

    familiar with the ways these defaults operate, you can easily change them

    according to your needs. In this section you will learn how to start

    Pro/ENGINEER from the operating system and from the Application Manager,

    retrieve an object, and save your work when you exit Pro/ENGINEER.

    Later sections in this chapter provide detail on how

    to use the Application Manager, Model Tree, and startup configuration options

    to customize Pro/ENGINEER.

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    3. BEFORE YOU BEGIN

    Before you run Pro/ENGINEER, you should know about three settings:

    Working directory--Pro/ENGINEER first looks up files and

    configuration options in a designated directory on your system. This

    directory is called the current directory orworking directory. You will

    need read/write access to this directory, as you will be storing and

    retrieving your objects, such as parts and assemblies, in it.

    Configuration file--Pro/ENGINEER uses configuration files to

    determine default settings that you modify from session to session. If

    your system administrator has a standard configuration file for new

    users, copy it to your working directory. For more information on

    configuration files, see the section Configuration File Options.

    Startup command--The command that you use to start Pro/ENGINEER

    is defined when the product is installed. This startup command can also

    specify options for handling graphics and data. If you do not know the

    startup command for Pro/ENGINEER, consult your systemadministrator.

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    4. ADVANTAGES/BENEFITS OF PRO/E OVER OTHER

    PACKAGE.

    PRO-E OFFER WITH BENEFITS

    1. PRO-E are offering Pro/E Foundation (details as per brochure)

    2. PRO-E are offering FEA software i.e. Pro/Mechanica (Structural,

    Motion, Thermal) (details as per brochure).

    3. PRO-E are offering Mechanism Design Extension (MDX) for

    simulation of mechanisms, (details as per brochure).In addition to above we have offered following

    modules with maximum 100 users license which can help the students for their

    projects and wider carrier opportunities after getting expertise on those

    software.

    Tool Design Option Mold and Die Designing software

    Production Machining Option CNC tool path

    generation/Manufacturing software.

    Behavioral Modeling Extension (BMX) The unique concept in

    Mechanical Designing

    Model Check

    Pro/ENGINEER Advance Assembly Extension (AAX)

    Advance Surface Extension (ASX) Reverse Engineering Software

    Pro/intralink Users Training

    Pro/intralink Administration Training.

    CDRS Advance Surface Designing Software.

    3D PAINT

    Pro/DESKTOP

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    All the above Pro/Engineer software are developed

    by Parametric Technology Corporation, USA and Rolta India Limited is the

    sole distributor for selling and supporting alt range of PTC products in India.Today, Pro/Engineer is the no. 1 CAD/CAM

    software available in the market built on the most powerful Granite

    Technology. The maximum jobs for CAD/CAM available in the market are for

    Engineers trained on Pro/Engineer. We are providing maximum 100 users

    license. Free upgrade and updates during the license period. If software is

    required multi-user, then the computers must be connected through LAN and

    must have O.S. Win NT or Win 2000.

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    5. WHY PRO/E IS SELECTED FOR THIS PROJECT.

    A capability unique to parametric modeling

    packages, when compared to other forms of CAD, is the ability to incorporate

    design intent into a model. Most computer-aided design packages have the

    ability to display a design, but the model or geometry does not hold design

    information beyond the actual vector data required for construction. Two-

    dimensional packages display objects in a form that graphically communicates

    he design, but the modeled geometry is not a virtual image of the actual shape

    of the design. Traditional three-dimensional models, especially solid models,

    display designs that prototype the actual shape of the design. The problem with

    solid-based Boolean models is that parameters associated with design intent are

    not incorporated. Within Boolean operations, when a sketch is protruded into a

    shape or when a cylinder is subtracted from existing geometry to form a hole,

    data associated with the construction of the part or feature is not readily

    available.

    Parameters associated with a feature inPro/ENGINEER exist after the feature has been constructed. An example of

    this would be a hole. A typical method used within Pro/ENGINEER to

    construct a straight hole is to locate the hole from two edges. After locating the

    hole, the hole diameter and depth are provided. The dimensional values used

    to define the hole can be retrieved and modified at a later time. Additionally,

    parametric values associated with a feature, such as a hole diameter, can be

    used to control parameters associated with other dimensions.

    With most Boolean operations, the final outcome of

    the construction of a model is of primary importance. When modeling a hole,

    the importance lies not in parameters used to locate a hole but where the hole

    eventually is constructed. When the subtraction process is accomplished, the

    cylinder location method is typically lost. Using parametric hole construction

    techniques, these parameters are preserved for later use.

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    The dimensioning scheme for the creation of a

    feature, such as a hole, is important for capturing design intent.

    Figure shows two different ways to locate a pair ofholes. Both examples are valid ways to dimension and locate holes. Which

    technique is better ? The answer depends upon the design intent of the part and

    feature. Does the design require that each hole be located a specific distance

    from a common datum plane ? If it does, then the second example might be the

    dimensioning scheme that meets design intent. But if the design requires that

    the distance between the two holes be carefully controlled, the first example

    might prove to be the best dimensioning scheme.

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    fig. 5.1 The hierarchical order of design intent

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    Designs are created for a purpose. Design intent is

    the intellectual arrangement of assemblies, parts, features, and dimensions to

    solve a design problem. Most designs are composed of an assembly of parts.Each part within a design is made up of various features. Design intent

    governs the relationship between parts in an assembly and the relationship

    between features in a part. As depicted in Figure, a hierarchical ordering of

    intent can be created for a design. At the top of the design intent tree is the

    overall intent of the design. Below the overall design intent is the component

    design intent. Components of the design. Below the overall design intent is

    the component design intent. Components are composed of parts and

    subassemblies. The intent of each component of a design is to work

    concurrently with other components as a solution to the design problem.

    Features comprise parts. Features must meet the design intent of the parts of

    which they are composed.

    Parametric modeling packages provide a variety of

    tools for incorporating design intent. The following is a list of these tools.

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    ASSEMBLY CONSTRAINTS

    Assembly constraints are used to form relationships between componentsof a design. If a parts surface should mesh with the surface of another part

    within an assembly, a mate constraint should be used. Examples of other

    common assembly constraints include align, insert, and orient.

    PARENT-CHILD RELATIONSHIPS

    The definition of a feature frequently relies on dimensional and geometric

    cues taken from another feature. This kind of relationship is termed a

    parent-child relationship. The parent-child relationship is one of the most

    powerful aspects of Pro/ENGINEER. When a parent feature is modified,

    its children are automatically recreated to reflect the changes in the

    geometry of the parentfeature. It is therefore essential to reference feature

    dimensions and geometry so design modificationsare correctly propagated

    throughout the model. Because children reference parents, features canexist without children, but children cannot exist without their parents.

    DIMENSIONAL RELATIONSHIPS

    Dimensional relationships allow the capture of

    design intent between and within features while in part mode, and between

    parts while in assembly mode. A dimensional relationship is an explicit way to

    relate features in a design.

    Mathematical equations are used to relate

    dimensions. An example of a dimensional relationship is to make two

    dimensions equal in value. Within Pro/ENGINEER, for this example, the first

    dimension would drive the second. Most algebraic and trigonometric formulas

    can be included in a relationship. In addition, simple conditional statements

    can be incorporated.

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    DIMENSIONING SCHEME

    The placement of dimensions is extremelyimportant for the incorporation of design intent into a model. During sketching

    within Pro/ENGINEER, dimensions are placed automatically (when intent

    manager is activated ) that will fully define a feature. These dimensions may

    not match the design intent, however. Dimensions within a section or within

    the creation of a feature should match the intent of a design.

    FEATURE CONSTRAINTS

    Constraints are powerful tools for incorporating

    design intent. If a design requires a features element to be constrained

    perpendicular to another element, a perpendicular constraint should be used.

    Likewise, design intent can be incorporated with other constraints, such as

    parallel, tangent, and equal length.

    REFERENCES

    Feature references can be created within part and

    assembly modes of Pro/ENGINEER. An example of a reference within part

    mode is to use existing feature edges to create new geometry within the

    sketcher environment. A parent feature edges to create new geometry within

    the sketcher environment. A parent child relationship is then established

    between the two features. If the reference edge is modified, the child feature ismodified correspondingly.

    Within assembly mode, an external reference can

    be established between a feature on one part and a feature on a second.

    Pro/ENGINEER allows for the creation of parts and subassemblies within

    assembly mode. By creating a component using this technique, relationships

    can be established between two parts. Modification of the parent part reference

    will modify the child part.

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    6. SCOPE OF PROJECT

    The engineering design process once was linear and decentralized.

    Modern engineering philosophies are integrating team approaches into thedesign of products. As shown in Figure team members can come from a

    variety of fields. Teaming stimulates a nonlinear approach to design, with

    the CAD model the central means of communicating design intent.

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    Concurrent engineering has many advantages over

    the traditional design process. Individuals and groups invest significant

    resources and time into the development of products. Each individual and

    group has needs that must be met by the final design solution. As an example,

    a service technician wants a product that is easy to maintain while the

    marketing department wants a design that is easy to sell. Concurrent

    engineering allows everyone with an interest in the design to provide their

    input.

    Modern engineering and communication

    technologies allow designs to be shared easily among team members. CAD

    three-dimensional models graphically display designs that can be interpreted by

    individuals who are not trained in blueprint-reading fundamentals. Because of

    this accessibility, the CAD system has become the heart of many product-data-

    management systems. Internet capabilities allow designs to be shared overlong distances. Most CAD applications have Internet tools that facilitate the

    sharing of design data. Parametric Technology Corporations Pro/Web-

    Publish, for one, allows for the publishing of CAD data over the Internet.

    Another example is PTCs Pro/Fly-Through application, which displays

    Virtual-Reality-Modeling-Language (VRML) models and allows for the

    markup and animation of these models over an Internet or intranet.

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    Fig. 6.1 Concurrent engineering members

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    7. USE OF COMPONENT LIBRARY

    COMPONENT LIBRARY

    Component library is a collection of frequentlyused parts. It may be retained in the memory of the computer or may be

    preserved with the firm, which needs it.

    In Pro/E one can create such a library very easily.

    As these is option of modify in other model tree of the component it self. The

    part can be easily, modified and used as it is needed.

    This type of library is very much helpful in the

    firms where there some parts are frequently used in the design of several

    components for e.g.:- A company manufacturing boilers has to design various

    types, sizes and shapes of boilers. There are several parts. Such as safety

    valves, cocks, tubes etc. which are common in the various boilers. The

    designer has to design. The various parts as many time. As they are needed to

    reduce the cumbersome work of redesigning. The parts which are already

    designed for some others model with different size or shape. It would be

    helpful to the designer to create a component library of such parts and use the

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    parts by modifying these dimensions. According to the shape and size of the

    model.

    This type of library or collection reducesconsiderable amount of time. As modify option is there in Pro/E component

    library can be easily created and retrieved.

    In our project we have made a library of std.

    Components such as levels, nuts, bolts, bearings. Springs etc., which are, use

    in the Assembly of various M/CS universally.

    The description of the parts in the library are as

    given below.

    1) Rivets: - According to Indian standard the material of rivets must have a

    tensile strength not exceed 40 N/mm2 and elongation not less than 26

    percent. The diameter of the rivet is equal as it has various types. The

    various rivets are classified according with heads. These rivets are used

    various lap joint and Butt joint. In this the dimension of heads are

    modified according to requirement.

    Fig. 7.1 Figures of Rivets

    2) Springs: - The springs are classified into various forms.

    Helical spring: - The helical spring are made up ofwire coiled in the form a

    helix and primarily intended for compressive or tensile loads. The cross

    section of wire form from which the spring its made may be circular, square or

    rectangular. The cross section can easily changed and redefined according to

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    the requirement. The pitch of spring also changed according to requirement

    and length of spring also modified.

    Fig. 7.2 Figure (a) compression helical springs

    Conical and volute spring: - These types of springs are used to special

    application where telescoping spring or a spring with rate that increases the

    load desired. The number of coils of spring can easily modified.

    3) Nuts and Bolt: - These are standard component, which are used as a

    fastener. The inner diameter and size of Nut can easily change in pro/Engineer.

    The bolt diameter and length of bolt can easily modify. The nuts and bolt can

    also change frequently as per requirement in the various assembly. The one of

    best useful characteristic of pro/Engineer we can give any color to any

    component to identify clearly in case of assembly

    Fig. 7.3 NUT & BOLT

    4) Threads: - There are various types of threads, which are applied for various

    application components. There are various types of threads i.e. V-threads

    square thread. Buttross thread etc. The pitch of the threads can modified

    easily. The length of the thread can easily modified. The v-threads are

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    generally applied in Nuts and bolts. The square threads are generally employed

    for the locking device.

    5) Couplings: - A flange coupling usually applied to a coupling having twoseparate cast flanges. Each flanges is mounted on the shafts end keyed to it.

    The faces are turned up right angle to the axis of the shaft. One of the flanges

    has a projected portion and other flange has a corresponding recess. This helps

    to bring the shaft into line and maintain alignment. The two flanges are

    coupled together by means of both and nuts. The flange coupling is adapted to

    heavy loads and hence it is used to large shafting. These are classified as

    i) Unprotected type flange coupling:

    In an unprotected type flange coupling as each shaft

    is keyed to the boss of a flange with a counter sunk key and flanges are coupled

    together by means of bolts. Generally three, four or six bolts are used.

    Fig. 7.4 Unprotected type flange coupling

    ii) Protected type flange coupling: - In a protected type flange coupling the

    protruding bolts and nuts are protected by flanges on the two halves of the

    coupling. The thickness of protective circumferential flange is taken as 0.25d.iii) Marine type flange coupling: - The marine type flange coupling the flanges

    are forced internal with the shaft. The flanges are held together by means of

    taper headless bolts numbering from four to twelve depending upon the

    diameter of shaft.

    6) Bearings :- This is the standard part which can used to transmit the power.

    The bearing have various sizes. These can be classified into various category.

    The modelling of footstep bearing and ball bearing is completed. The number

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    of balls can be increased or decreased by modifying the bearing as per

    requirement. As use reduce the number of ball the size of bearing can reduced.

    The changes are done as per requirements.

    Fig. 7.5 Bearings

    8. MINIMUM REQUIREMENTS FOR PRO/E PACKAGE

    Pro/ENGINEER REQUIREMENTStandard Pro/E pre requisite (workstation on which Pro/E is loaded) is as

    Follows:

    1. Any Computer with Pentium Processor.

    2. Operating System Windows NT 4.0 or Windows 2000 (note Pro/E release

    2001 is not available on windows 95 or windows 98 so ask your customer to

    upgrade to these NT OSbefore any installation proceeds).

    3. Pro/E requires min of 96 MB of RAM but for better working and future

    enhancements we recommend 128 MB of RAM.

    4. Hard disk space required for Pro/E (without Help) is 350 MB. For

    considering every thing at least customer must have IGB of free space before

    installation proceeds.

    5. Monitor 17 is recommended for better viewing, 14 monitor will do in

    worst case but it should support resolution of 1024x768 delivered by display

    card.

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    6. Graphics card (8 mB Video RAM) with OpenGL support and 1024x768

    resolution, 16 million colour delivery.

    eg. Matrox miltenium G-400 or N-Vidia G-Force M-II etc (STD list of PTCsupported graphics card is available)

    7. Network card for licensing

    8. STD accessories like CD-ROM drive, 3 button mouse 8i Key board.

    The above configuration is for PC on which

    Pro/Engineer is working while configuration for license server can be even

    lower than above configuration if Pro/E is not working on server machine, in

    such case only requirement is working windows based machine on Network

    which can directly accessed by client machines. ( it is not necessary to load

    ProE on license server machine) if server contains ProE installation then you

    can consider above list of configuration for the server.

    PRO/ENGINEER FOUNDATION-II

    COMPLETE PRODUCT DEFINITION

    Pro/E-Foundation-II contains the industries most

    used, feature-based. 3D parametric solid modeling core that provides accurate

    representations of geometry, mass properties and interference checking. It

    enables full definition of the product definition, producing complete and

    accurate product results and deliverables. By providing feature-based

    modeling and full associativity, it enables changes made anywhere in the

    development process to be propagated throughout the entire design andthroughout the value chain

    CAPABILITIES

    Assemblies define and create complex assemblies.

    Associative Drawing Tables produce detailed reports that automatically

    update changes to design tables.

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    Basic Surface create and trim surfaces using basic tools (extrude, revolve,

    blend, sweep, etc.) Perform surface operations such copy, merge, extend, and

    transform,Data Exchange empower highly collaborative CAD/CAM development.

    Fully Detailed Documentation and 2D Drafting create complete, production-

    ready drawings.

    Library easy access to standard parts, features, tools, mold bases, connectors,

    pipe fittings, symbols, and human body dimensions.

    Mechanism Design assemble parts and assemblies using pre-defined

    connections (pin joints, ball joints, sliders, etc.) The mechanism assembly can

    then be interactively dragged through its range of motion.

    Model Check evaluate parts, assemblies, and drawings to ensure that they

    adhere to a companys modeling standards and best practices.

    Photo-realism quickly create accurate, photo-realistic images of

    Pro/ENGINEER parts and assembles.

    Plotting/Printing supports more than 150 plotters plus printers and plotters

    running on Microsoft WindowsNT, 95, 98 and 2000).

    Programmatic Interface J-Link capability is a powerful new toot for

    expanding, customizing, and automating the functionality of Pro/ENGINEER.

    Sheet Metal quickly create sheet metal parts using sheet metal specific

    features such as bends, punches, forms, etc. Provide the ability to unfold sheet

    metal parts into accurate flat patterns.

    VRML/HTML - export Pro/ENGINEER parts, assemblies, and process plans

    to Web pages using standard HTML, VRML, CGM, and JPEG formats and

    Java applets.

    Weld Modeling and Documentation define joining requirements for welded

    parts and assemblies and easily produce full, 2D weld documentation.

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    MAPKEYS

    Mapkeys are keyboard macros of frequently used command sequences. A possible use of a mapkey would be defining a macro for the command

    sequence to establish Pro/ENGINEERs default datum planes. The following

    command steps are required to set the default datum planes : Feature >> Create

    >> Datum >> Plane >> Default. A mapkey can be used to create the default

    datum planes in one keyboard selection.

    The Mapkeys dialog box (see Figure) is used to

    create and edit mapkeys. The following options are found under this dialog

    box :

    New : The New option is used to define a new mapkey.

    Modify : The Modify option is used to modify an existing mapkey,

    Run : Run is used to execute an existing mapkey. Mapkeys can be run

    outside of the Mapkey dialog box.

    Delete : The Delete option is used to delete an existing mapkey.

    Save : The Save option is used to save the mapkey to the configuration

    file. Saving a mapkey will allow it to be used with other

    Pro/ENGINEER sessions.

    DEFINING MAPKEYS

    Mapkeys are created by recording keyboard command sequences. Pauses to

    allow for the selection of objects on the work screen are included automaticallyin the recording process. Perform the following steps to create a mapkey :

    STEP1:Select UTILITIES >>MAPKEYS on Pro/ENGINEERs Menu Bar.

    The Mapkeys dialog box will appear

    STEP 2 : Select NEW from the Mapkeys dialog box.

    The Record Mapkey dialog box will appear.

    STEP 3 : Enter a Key Sequence, Mapkey name, and Mapkey description.

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    The key sequence is the keyboard entry that will

    execute the mapkey.

    For function keys, enter a dollar sign in front of thefunction key sign (e.g.$F2).

    STEP 4 : Select RECORD and select command sequence from the

    keyboard and from Pro/ENGINEERs menu.

    After selecting Record, enter command sequence

    just as you would if you were performing the function. You can enter pauses to

    allow for the entry of sequences outside of the macro.

    STEP 5 : Select STOP to end the recording of a mapkey.

    STEP 6 : Select OK on the Record Mapkey dialog box.

    STEP 7 : Select SAVE on the Mapkey dialog box to permanently store the

    mapkey.

    Mapkeys are saved in the current configuration file

    9. RELATIONS

    Mathematical and conditional relationships can be

    established between dimension values. As introduced the utilization of

    relations within the sketcher environment. Relations within the sketcher

    environment are used to establish dimensional relationships between

    dimensions of a feature. The Relations command that is found under the Part

    menu is used to establish relationships between any two dimensions of a part .

    Within Assembly mode, the Relations option can be used to establish

    relationships between dimensions from different parts.

    Dimensions can be shown with numeric values or

    as symbols. Figure shows an example of a part with dimensions shown as

    symbols. Dimension values are displayed as a d followed by the dimension

    number (e.g., d3). Other parameters that can be displayed symbolically include

    reference dimensions (e.g., rd3), plus-minus symmetrical tolerance mode (e.g.,

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    tpm4), positive plus-minus tolerance mode (e.g., tp4), negative plus-minus

    tolerance mode (e.g., tm4), and number of instances of a feature (e.g.,p5).

    Most algebraic operators and functions can be usedto define a relation. Additionally, most comparison operators can be used.

    Table provides a list of mathematical operations, functions, and comparisons

    supported in relation statements. All trigonometric functions use degrees.

    CONDITIONAL STATEMENTS

    Pro/ENGINEERs Relations command has the

    ability to utilize conditional statements for the purpose of capturing design

    intent. As an example, Figure shows a flange that incorporates holes on a bolt

    circle centerline. In a model such as this, the holes are created typically as a

    patterned radial hole. Imagine a situation where the number of holes and the

    diameter of the bolt circle are governed by the diameter of the flange. Suppose,

    in this example, that the bolt circle diameter is always 2 inches less than the

    diameter of the flange. Also suppose that the design requires four holes on the

    bolt circle if the diameter of the flange is 10 inches or less and six holes if the

    flange diameter is greater than 10 inches. Using the following relational

    statements, parameters can be established that control this design intent for the

    bolt circle pattern :

    IF d0 < = 10 (Line 1)

    p0 = 4 (Line 2)

    d5 = 90 (Line 3)

    ELSE (Line 4)

    p0 = 6 (Line 5)

    d5 = 60 (Line 6)

    ENDIF (Line 7)

    d3 = d0 2 (Line 8)

    A conditional relation is defined between an IF

    statement and an ENDIF statement. The above example utilizes an IF-ELSE

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    statement. In the case of an IF-ELSE statement, if the condition is true the

    expressions following the IF statement will occur. If the condition is not true,

    the condition following the ELSE statement will occur. The above examplereads as follows:

    Fig. 9.1

    If the flange diameter is less than or equal to 10, the

    number of holes is equal to four and the angular spacing between each hole is

    90 degrees; or else, the number of holes is equal to six and the angular spacing

    is equal to 60 degrees.

    In the above example, the condition statement is the

    diameter of the flange (d0) being less than or equal to 10 (see line 1). If this is

    true, the number of holes on the bolt circle (p0) will be equal to four and the

    angle between each instance of the hole (d5) will be 90 degrees. If the flange

    diameter is not less than or equal to 10, the number of holes on the bolt circle

    will be six and the angle between instances will be 60 degrees. In a conditionalstatement, the ELSE expression shown in line 4 must occupy a line by itself.

    The expression ENDIF is used to end the conditional statement. Additionally,

    in the above example, line 8 is used to make the bolt circle diameter always 2

    less than the flange diameter.

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    ADDING AND EDITTING RELATIONS

    Relations are added to an object using theRelations>>Add option. Dimension and parameter symbols are not

    automatically displayed upon selecting the Add option. Since these symbols

    are needed for the accurate creation of a relation, it is necessary to select each

    appropriate feature after selecting the Relations command. When a feature is

    selected in this manner, dimensions and parameters will be shown with their

    assigned dimension symbols.

    Relations are added one relation at a time through a

    textbox. After typing a relation, use the Enter key to input the relation. For

    conditional statements, input each line one at a time, also through the textbox.

    Relations are evaluated within a model in the order in which they are defined.

    In most cases of conflict, the later relation overrides the former.

    The Show Rel and the Edit Rel options can be used

    to display defined relations. While the Show Rel option allows for the viewing

    of relations, the Edit Rel option allows for the modification of existing relations

    and for the creation of new relations.

    10. PART FAMILY

    FAMILY TABLES

    A family of parts comprises components that share

    common geometric features. An example of a family of parts is the hex head

    bolt. Hex head bolts come in a variety of sizes but share common

    characteristics. Bolts can have different lengths and diameters but share similar

    head features and thread parameters (Figure). Family tables are groups of

    similar features, parts, or assemblies. Within companies, it is common to find

    parts and assemblies with common geometric characteristics. Examples can be

    found in the automotive industry. An automobile manufacturer probably has a

    large variety of cam shafts. A family table can be created that drives the

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    construction of a companys line of cam shafts. Examples can be found with

    assemblies also. Imagine the number of alternators that a major automobile

    company produces. Alternators have similar characteristics but can vary incertain components and features. A family table can be created that controls

    the design of a companys line of alternators.

    Family tables have many advantages. Storing and

    controlling large numbers of components can be difficult to manage and costly.

    For a family of parts with large numbers of variations, family tables allow

    components to be stored to disk while consuming significantly less storage

    space. Family tables also save time in the modeling process. If a design is

    known to work effectively, a variation of the design can be created by changing

    a parameter within the family table. This technique also allows for the

    standardization of a design.

    ADDING ITEMS TO A FAMILY TABLE

    No specific option is used to create a family table.

    A family table is created automatically when an item is selected to add to the

    family table. Examples of items that can be added to a family table include

    dimensions, features, components, and user parameters. Other items that can

    be added include groups, pattern tables, and reference models. To add an item,

    select the Add Item option from the family table menu; then select the item

    type to add. Some items, such as groups, are better selected by utilizing the

    model tree.

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    CREATING A FAMILY TABLE

    BENEFITS OF FAMILY TABLES

    Using family tables, you can:

    Create and store large numbers of objects simply and compactly

    Save time and effort by standardizing part generation

    Generate variations of a part from one part file without having to re-

    create and generate each one

    Create slight variations in parts without having to use relations to

    change the model

    Create a table of parts that can be saved to a print file and included in

    part catalogs

    Family tables promote the use of standardized components and enable you to

    represent your actual part inventory in Pro/ENGINEER. Moreover, families

    facilitate interchangeability of parts and subassemblies in an assembly;instances from the same family are automatically interchangeable with each

    other.

    This section will introduce the creation of family tables by creating

    a family table of hex head and square head bolts. Three instances will be

    created: two hex head and one square head. Figure shows the two instances of

    the hex head bolt, the instance of the square head bolt, and the generic part.

    The generic part is a standard Pro/ENGINEER part and is used to create the

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    instances. This part (generic-bolt) can be found on the supplemental CD.

    Notice in the figure the overlap of the heads of the hex head bolt and the square

    head bolt. As shown on the model tree in Figure, the hex head bolt is actually agrouped feature.

    The generic part in this turorial is a bolt with a

    major diameter of 0.500 inches and a bolt length of 2.25 inches. A cosmetic

    thread feature has been created with a minor diameter of 0.375 inches.

    Additionally, the following dimensional relations have been added to the

    generic part :

    The height of both bolt heads is set to 0.667 times the major diameter.

    The distance across the flats of both bolt heads is set to 1.5 times the

    major diameter.

    The cosmetic thread minor diameter is set to 0.75 times the major

    diameter.

    This tutorial will add the bolts major diameter and

    length dimensions to the family table. Additionally, the two grouped features

    that defined the bolt heads will be added. Three instances of the part will be

    created. The first instance will be a Hex Head bolt with the same dimensions

    as the generic part. The second instance will be a Square Head bolt, also with

    the same dimensions as the generic part. The third instance will be a Hex Head

    bolt with a 1.00 inch major diameter and a length of 3.00 inches.

    Perform the following steps to create a family table

    of bolts :

    STEP 1 : Create the Bolt with the Hex Head.

    Use appropriate modeling tools to create the bolt.

    This part, named generic-bolt, can be found on the supplemental CD also. If

    you elected to open the existing part, skip steps 2 to 4.

    STEP 2 : Group the features comprising the hex head; then suppress the

    group.

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    By grouping the features comprising the hex head,

    these features can be manipulated together. This group will be suppressed to

    allow for the creation of the square head.STEP 3 : Create the Square Head feature on the Bolt.

    STEP 4 : Use the RESUME option to unsuppress the Hex_Head group.

    STEP 5 : Select the FAMILY TAB option from the Part menu.

    Each part is capable of one family table. The

    family table is created when the first item is added to it.

    STEP 6 : Select the ADD ITEM option on the Family Table menu

    (Figure).

    Examples of items that can be added to a family

    table include dimensions, features, and components.

    STEP 7 : Select the DIMENSION option on the Item Type menu (Figure) then

    select the shaft of the bolt.

    The first items that will be added to the family table

    include the dimensions that define the major diameter of the bolt and the length

    of the bolt.

    STEP 8 : As shown in Figure, select the dimensions defining the bolts major

    diameter and the bolts length.

    Using the Dimension type, any selected dimension

    will be added to the family table.

    STEP 9 : Select the FEATURE option on the Item Type menu (Figure).

    The Feature option allows features, including

    grouped features, to be added to the family table. Two features will be added :

    the Hex_Head group feature and the Square_Head_Bolt feature.

    STEP 10 : On the Model Tree, select the HEX_HEAD group feature and

    the SQUARE_HEAD_BOLT feature; then select DONE on the Select Feat

    menu.

    STEP 11 : Select EDIT on the Family Table menu.

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    Selecting the Edit option will activate Pro/TABLE.

    Pro/TABLE is a spreadsheet that is used to manage and create instances of a

    part. Figure shows the table with the generic bolt feature that contains allpreviously selected items.

    STEP 12 : As shown in Figure, enter the information in the TABLE to

    create the instance HEX_2250_500.

    The new instances name will be HEX_2250_500.

    This name represents a hex head bolt, 2,250 inches in length, and 0.500 inches

    in diameter. Pro/TABLE does not accept a period value or a space in the

    instance name; hence, the naming standard shown in this example. Enter 2.25

    for the length of the instance and 0.5 as the bolt diameter (Figure). In the table,

    enter a Y value for the new instance in the column representing the hex head

    feature (F56 in this example) and an N value for the column representing the

    square head feature (F261 in this example). A Y value will reveal the feature

    in the instance, and an N value will remove the feature.

    INSTRUCTIONAL NOTE When entering the Y and N values to create new

    instances, Pro/TABLE will left justify each column. The example shown in

    Figure has been right-justified.

    STEP 13 : As shown in Figure, enter the information in the TABLE to

    create the instance SQUARE_2250_500.

    This instance consists of a square head bolt with a major diameter of

    0.500 inches and a bolt length of 2.250 inches.

    STEP 14 : Select FILE >> EXIT from the Pro/TABLE menu.Pro/ENGINEER automatically saves the Pro/TABLE when selecting the

    exit command.

    STEP 15 : Select the INSTANCE option on the Family Table menu.

    The Instance option reveals defined instances in the Family Tree dialog

    box.

    STEP 16 : On the Family Tree dialog box, select the HEX_2250_500

    instance; then select OK.

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    Pro/ENGINEER opens a new window with the instance of the part

    shown.

    Selecting the Save option from the File menu will save the currentinstance as a part.

    STEP 17 : Close the instance from memory by selecting the FILE >>

    ERASE >> CURRENT option.

    Use the File >> Erase >> Current option to close the He_2250_500

    instance of the part.

    STEP 18 : Activate the generic part (Window >> Activate); then select the

    FAMILY TAB menu.

    STEP 19 : Select EDIT from the Family Table menu; then create a

    HEX_3000_1000 instance.

    Create an instance of the generic part that includes a hex head bolt that

    is 3 inches in length with a major diameter of 1 inch.

    STEP 20 : Select FILE >> EXIT from the Pro/TABLE menu.

    STEP 21: Save the generic part.

    11. HOW TO USE LAYERS

    The following steps describe in general how to use

    layers. For specific information, see the referenced sections.

    1. Set up the layers to which items will be added..

    2. Add items to the specified layers. .

    Some items can be automatically added to layers as they are created.

    This is done using default layers in the configuration file.

    You can add an item by selecting its type and then selecting the item.

    You can add features by selecting an option that adds all features of a

    particular type to the layer.

    You can add a range of features to a layer.

    You can add a feature and all of its children to a layer.

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    You can include one layer on another layer.

    You can copy items from one layer to another layer or to a new layer.

    3. Set the display status of the layers using either the Layer Display dialog

    box or the layer file. .

    Creating Layers

    The SETUP LAYER menu contains the following commands:

    Create--Enables you to create a layer by entering its name.

    Delete--Enables you to delete selected layers.

    Rename--Enables you to rename a selected layer.

    Specify Id--Opens the LAYER ID menu. Enables you to set or remove

    an interface layer ID. With this ID, a layer is recognized when you are

    exporting the file to a different format such as IGES.

    From File--Opens the PARAMETERS menu. Enables you to manipulate a

    layer by modifying parameters in the layer file.

    Using the Model Tree

    Learning how to use the Model Tree is critical for using Pro/ENGINEER

    effectively. As you or your workgroup develops more sophisticated models,

    you will find that the Model Tree provides both basic and sophisticated features

    for manipulating and managing the objects that you create. These features

    include the following:

    It displays a list of objects currently available in your Pro/ENGINEER

    session. For example, if you open an assembly, the Model Tree displays

    all the constituent parts associated with that assembly.

    It lets you select specific features or parts for various operations. For

    example, you can select a feature in a part by selecting its name in the

    Model Tree without having to alter the current view of the part to make

    the feature easily selectable.

    It lets you run commonly used commands for the features that you

    select. For example, you can right-click a feature listed in the Model

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    Tree and create a model note for it. Similarly, you can select an

    assembly in the Model Tree and create a new part for that assembly.

    It displays detailed information about each object, for example, featuretypes, feature ID, and names.

    It lets you create new information parameters for selected features.

    It provides sophisticated search capabilities so you can query all the

    objects in your Pro/ENGINEER session for specific built-in or user-

    defined parameters.

    In this section you will learn how to use each of the features of the Model Tree.

    12. LISTING FEATURES AND PARTS IN THE MODEL

    TREE

    When you retrieve a model, Pro/ENGINEER

    displays information about its geometry in the active window. By default, it

    also displays the model structure in a tree format in the Model Tree window.

    Whether you have retrieved a part or an assembly,

    the Model Tree displays the root object at the top of its tree and subordinate

    objects below it. In this example, the Model Tree displays two part objects

    (NUT.PRT and PN3.PRT) associated with the assembly NUT-BOLT.ASM.

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    Once the top-level features of an object are

    displayed in the Model Tree, you can display more detailed features associated

    with any of the features or parts.

    MANIPULATING FEATURES USING THE MODEL TREE

    The Model Tree does much more than display

    objects. It also lets you interact with objects in your model. Whenever you

    would normally be required to select parts or features during a Pro/ENGINEER

    session, you can select them from the model tree by locating the items on the

    tree and clicking them.

    How to Select Features Using the Model Tree

    1. Click the name of a feature or part displayed in the Model Tree.

    Pro/ENGINEER activates the workspace window containing that feature

    or part and then highlights that feature or part. For example, to select the

    part PN3.PRT in the assembly NUT-BOLT.ASM, click the name

    PN3.PRT in the Model Tree.

    2. Select a different feature in the Model Tree to change the selection.

    Once you have selected a feature using the Model Tree, you can carry out

    commonly used commands appropriate for that feature. Each feature you select

    has a unique set of commands.

    How to Choose Commands for Selected Features

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    1. Select a feature or part listed in the Model Tree.

    2. Right-click the feature or part to display a menu of commonly used

    commands appropriate for that feature or part.If you right-click an assembly, the menu displays the following

    commands.

    If you right-click a part, the menu displays the following commands.

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    Choose a command from the displayed menu.

    13. DESCRIPTION OF MACHINES

    MAHAVIR

    D-SERIES DESTONER

    MEPL Destoner assures unbeatable reliability and

    performance. Most effective solution for separation of stones, mud balls and

    dust from seeds/grains.

    APPLICATION:

    For continuous separation of stones from a stream

    of granular material. Simple and dependable separation on the basis of the

    difference in terminal velocity of the material and of the heavy impurities such

    as stone, metals, glass etc.

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    WORKING PRINCIPLE:

    The gravity-fed grain is spread by a feeder across

    the entire width of the machine. On separation screen, the stream of material is

    stratified according to its specific gravity by the oscillating motion of the

    screen and the air flowing through the material from bottom to top. The light

    particles collect at the top and the heavy ones including the stones at the

    bottom. The lower layers of stones flow upward and are separated out. The

    stone free stream of materials float on cushion of air, flowing slowly towards

    the material outlets. The inclination of the screens. The air volume and final

    separation can be individually adjusted to achieve the optimum degree of

    separation.

    DUST COLLECTION SYSTEM

    Some products are contaminated with dust chaff

    and other light impurities, which are to be separated. The provision of special

    fan for removing the said impurities can be given as an optional arrangement.

    Adjustment: All the adjustment provided in the machine is simple and user

    friendly.

    MACHINE CAPACITY:

    Due to the wide variation in separation

    requirements, MFPL cannot guarantee these specific capacities; however,

    estimates in the table are conservative and have been equaled or exceeded

    when the destoner and other associated equipment have been installed and

    operated properly. The destoner requires a firm foundation, an adequate clean

    air source and uniform feed rate.

    Table 13.1 Technical Specification:

    Model Capacity Power in HP Dimensions

    D-2

    D-1.5

    2 TPH 2 HP

    3 HP

    Length - 1300 mm

    Width - 960 mm

    Height - 2000 mm

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    (With dust

    collection)

    Deck size

    870 x 740 mm

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    G-SERIES GRAVITY

    Mahavir Gravity Separator is used to separate any

    of dry particles similar in size & shape, but having different in specific weight.Gives best result in gradation of seed as well as grains.

    WORKING PRINCIPLE :

    It works on principle of Gravity' (weight)

    difference in the particles. For efficient density separation on different variety

    of seed or grain. Proper adjustment of deck inclination (longitudinal &

    transverse). Deck oscillation speed & setting of air of multi fan is necessary.

    The above adjustment can be done very easily while machine is in running

    condition.

    DUST CONTROL

    Certain seed/ grains contain dust; chaff & other

    light impurities make pollution in atmosphere. To control this air pollution as

    per system can provide with optional arrangement based on customer required.

    Features:

    Blower of aerodynamic design gives very high efficiency and avoids

    noise.

    Sturdy & compact design.

    Easy airflow adjustment.

    Filters provided to avoid entry of dust in blowers.

    Rectangular deck ensures excellent separation.

    Multi fan arrangement ensures exact ensures air flow requirement in

    different deck areas.

    Table 13.2 Technical Specification

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    Model No. of Fan Capacity Power Dimension in mm

    MG-1

    MG-2

    MG-4

    3 Fans

    5 Fans

    7 Fans

    1 TPH

    2 TPH

    4 TPH

    5.0 HP

    7.5 HP

    10.0 HP

    2200 x 1150 x 650

    MAHAVIR : A-Series Air Classifier

    This machine is the effective solution for separating

    light seed / grain, dust, impurities from good quality grain/ seed.

    Working Principle: The seed/grain are initially fed to feeding hopper.

    Through feeding hopper grains are pneumatically conveyed to top classifying

    feed chamber. The grains are conveyed through rectangular conveying duct.

    Stones, chaff dust are separated out from grains & are collected in top feed

    chamber. From top feed chamber, grains are fed to classifying duct where high

    velocity air stream separates light grains, light impurities from good quality

    grain. Separate chute is provided for collecting good quality grain, light grains

    dust & chaff.

    Special Features: Grading of grain is done by high velocity air stream.

    Removes dust, light impurities, trash from grain.

    Low quality immature grain and broken grains are separated from good

    quality grain.

    Self-pneumatic feeding, hence no need of bucket elevator.

    Glass panel is provided to observe process of separation and for accurate

    adjustment.

    No screen, deck or any moving part, hence maintenance free.

    Table 13.3 Technical Specification

    Model Electrical Power Capacity

    MEPL 4 7.5 HP 4 TPH

    MEPL 2 5.0 HP 2 TPH

    MEPL 1 3.0 HP 1 TPH

    MAHAVIR : W- Series weigher

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    Special Features :

    Electronic Setting Facility.

    Load Cell based

    Accuracy 0.1%

    Range 20-100 Kgs.

    Capacity - 60 Bags of 100 Kgs. per hour.

    Facility of Conveyor.

    Facility of stitching of gunny bag.

    Structure - Powder coating, hence long life. Easy clamping & decamping of Gunny bag.

    Storage bin capacity - 750 Kgs.

    Only one Operator requires operating the machine.

    Pneumatically operated feed gate system.

    Table 13.4 Technical Specification

    Model Capacity Power Reqd.Dimension

    (Mtr.)

    WS -100 20-100 Kgs.2 HP

    (Conveyor)3 x 1 x 2.5

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    14. TROUBLE SHOOTING

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    15. CONCLUSION

    Pro/engineer is more than just a modeling

    application. It is a true engineering design package. One of the capabilities that

    separate pro/engineer from mid- ranged computer-aided design and drafting

    applications is its ability to model an entire engineering design. With

    appropriate modules of pro/engineer, a product can be designed, modeled,

    detailed, simulated, and manufactured. While pro/engineers part mode is the

    main component for low-end design work, assembly mode is the module for

    complete product design. Pro/engineer is considered a design and engineering

    tool. The various modules of pro/engineer provide designer, engineer, and

    manufacturers with the tools necessary to take design from conceptual stage to

    final manufacturing.

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    16. REFERENCES

    1) PRO/ENGINEER INSTRUCTOR BY: DAVID S. KELLEY

    2) www.ptc.com

    3) MACHINE DESIGN BY R.S. KHURMI

    4) PRO/E HELP CD ROM (MASTER TUTOR)

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