assembly mates

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Solidworks Reference Material

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Assembly MatesIn this tutorial, you create a milling machine assembly. You use mates to create geometric relationships between the components of the assembly. This tutorial demonstrates:

Bringing parts into an assembly Using these assembly mates:

Coincident Concentric Parallel Distance

Using SmartMates Testing mates Editing mates

Next

IntroductionThis assembly uses the following parts, located in the \samples\tutorial\assemblymates folder.

knee.sldprt

saddle.sldprt

table.sldprt

bracket.sldprt

head.sldprt

scale.sldprt

pillar.sldprt

clamp.sldprt

pin.sldprt

Next

Inserting the First Part into the Assembly1. Click here: to open knee.sldprt (or browse to \samples\tutorial\assemblymates\knee.sldprt). 2. Click Make Assembly from Part/Assembly A new assembly document opens. (Standard toolbar).

3. Click View, Origins to display the origin in the graphics area. 4. In the PropertyManager, under Options, select Graphics preview. 5. Move the pointer over the origin.

The pointer changes to

, indicating the inference to the assembly origin.

6. Click to place the knee. When you place a component this way, the component origin is located coincident with the assembly origin, and the planes of the part and the assembly are aligned. This procedure, while not required, helps you establish an initial orientation for the assembly. You can create this type of inference with any component as you add it to the assembly. Next

Inserting the First Part into the Assembly (continued)The FeatureManager design tree contains the feature (f) knee. Because this is the first component inserted into the assembly, knee is fixed (f). It cannot be moved or rotated unless you float (unfix) it. The means that this is the first instance of knee in the assembly. The assembly also contains an empty Mates you add later. 1. Click Isometric folder. This folder is a placeholder for the mates that

(Standard Views toolbar).

2. Click View, Origins to clear the origin from the graphics area. 3. Click Window, knee.sldprt., and close the part document. The assembly remains open.

Next

Bringing More Components into the AssemblyUse the Insert Components tool to add more components to the assembly. 1. Click Insert Components (Assembly toolbar).

2. In the PropertyManager, click to pin the PropertyManager. This keeps the PropertyManager visible, so you can insert more than one component without having to re-open the PropertyManager. 3. Under Part/Assembly to Insert, click Browse, then navigate to \samples\tutorial\assemblymates. 4. Select saddle.sldprt, then click Open. 5. Click in the graphics area to place the component approximately as shown below. The saddle.sldprt component is added to the assembly. You can zoom the view by pressing Z (zoom out) or Shift+Z (zoom in). 6. Repeat steps 3 through 5 for table.sldprt. 7. Click .

Next

Bringing More Components into the Assembly (continued)The FeatureManager design tree displays information about the assembly components. 1. Examine the FeatureManager design tree. The prefix (-) before a component's name indicates that the position of the component is under defined. You can move and rotate these components. 2. Click to expand each item to display the component features.

3. To collapse the entire FeatureManager design tree in one step, right-click Assem1 at the top of the FeatureManager design tree and select Collapse Items. 4. Practice moving and rotating the individual components:

To move a component, click and drag a face of the component. To rotate a component, right-click and drag a face of the component. (Assembly

You can also click Move Component or Rotate Component toolbar), then drag to move or rotate components.

5. Save the assembly as mill.sldasm. If a message prompts you to rebuild before saving, click Yes. Next

Mating the Saddle and KneeAdd mates to define relationships between the assembly components. 1. Click Mate (Assembly toolbar).

To make selections easier, rotate the view by dragging with the middle mouse button in the graphics area. Then, after making the selection, click Previous View tools on the View toolbar are useful as you work through this tutorial. (View toolbar). Other

2. Select the top face of the knee and the bottom face of the saddle for Entities to Mate

.

The Mate pop-up toolbar appears in the graphics area. Coincident is selected in both the PropertyManager and the pop-up toolbar. A preview of the coincident mate appears. 3. To see how you can flip the alignment of the saddle, under Standard Mates, for Mate alignment: a. Click Aligned . .

b. Click Anti-Aligned

A closer look at Mate Alignment Next

Mating the Saddle and Knee (continued)4. In the PropertyManager, click to accept the mate.

The face of the knee and the face of the saddle now lie in the same infinite plane. The mate appears in the PropertyManager under Mates. 5. Click again to close the PropertyManager.

6. To test the mate: a. Click Move Component (Assembly toolbar), and drag the saddle.

You can only drag side to side and front to back, but not up and down. In some views, it might look like the saddle is moving out of the coincident plane, but if you check in the Front view or Right view, you can see that it is not.

b. Click Rotate Component

(Assembly toolbar), and drag the saddle. You can rotate the

saddle only within the plane coincident with the knee. 7. Click Next .

Mating the Saddle and Knee (continued)Add another mate between the saddle and knee. 1. Click Mate (Assembly toolbar).

2. Select the corresponding angular faces on the saddle and knee as shown.

The Mate pop-up toolbar appears in the graphics area. Coincident is selected in both the PropertyManager and the pop-up toolbar. A preview of the coincident mate appears. 3. Click Add/Finish Mate (Mate pop-up toolbar).

The selected angular faces are now mated.

Next

Mating the Table and SaddleAdd mates between the table and saddle similar to the ones between the saddle and knee.

1. Select the top face of the saddle and the bottom face of the table.

2. Accept the Coincident

mate.

You can accept a mate by doing any one of the following:

Click

(PropertyManager). (Mate pop-up toolbar).

Click Add/Finish Mate

Right-click when the pointer changes to

.

Next

Mating the Table and Saddle (continued)3. Select the corresponding angular faces on the table and saddle. You can also select the items to mate before opening the PropertyManager. Hold down Ctrl as you select the items.

4. Accept the Coincident

mate.

5. Close the PropertyManager. 6. Click Isometric 7. Drag the table. The table and saddle are still not fully constrained. Next (Standard Views toolbar).

Mating the Table and Saddle (continued)You could add limit mates, which would allow the saddle and table to move, but only within a specified range. However, limit mates can slow performance significantly, so they should be used only when necessary (for example, for collision detection). Instead, add mates to lock the saddle and table in position, to prevent unexpected movement of these components as you add more components. First, mate the right plane of the saddle to the right plane of the table. 1. Click Mate (Assembly toolbar).

If an item was already selected in the graphics area, it appears under Mate Selections. Right-click in the selection box and click Clear Selections. 2. In the flyout FeatureManager design tree:

Expand saddle and table. Select the following for Entities to Mate

:

Right Plane of saddle Right Plane of table

3. Accept the Coincident Next

mate.

Mating the Table and Saddle (continued)Mate the front plane of the saddle to the front plane of the assembly. 1. In the flyout FeatureManager design tree, select the following for Entities to Mate a. Front Plane of the assembly mill b. Front Plane of the component saddle Do not accept the coincident mate. Instead, add a distance mate. 2. In the PropertyManager, under Standard Mates: a. Click Distance . :

b. Type 250 for Distance and press Enter. c. To see how you can flip the direction of the dimension, select and then clear Flip Dimension several times. d. Position the saddle near the center of the knee.

3. Click

twice, to accept the mate and close the PropertyManager.

The positions of the saddle and table are fully defined. In the FeatureManager design tree, the prefix (-) no longer appears for saddle and table. Next

Mating the Table and Saddle (continued)Rename the mates to make them easier to find. 1. In the FeatureManager design tree, expand Mates .

2. Click-pause-click on the last Coincident mate in the folder. 3. Type to rename the mate Table Lock, then press Enter. 4. Rename the Distance mate Saddle Lock. 5. Right-click mill at the top of the FeatureManager design tree and select Collapse Items. 6. Save the assembly. Next

Using Windows Explorer to Add ComponentsAnother way to add components to the assembly is to drag them in from Windows Explorer. 1. Start Windows Explorer. 2. Navigate to the \samples\tutorial\assemblymates folder. 3. Click each item listed below individually, and drag it into the graphics area. Place the items approximately as shown. head.sldprt bracket.sldprt scale.sldprt Next

Mating the Bracket and Saddle

Hide the table to make it easier to mate the bracket and saddle. 1. In the FeatureManager design tree, right-click table and select Hide. The table is hidden, but not removed from the ass