01-introduction of jigs &fixtures
TRANSCRIPT
-
7/24/2019 01-Introduction of Jigs &Fixtures
1/13
1
What is Jig
Jig is a device in which a work piece isheld and located for a specific operation in
such a way, that it will guide one or more
cutting tools.
-
7/24/2019 01-Introduction of Jigs &Fixtures
2/13
2
FUN!"#N #F $ J"%
&ork piece holding, supporting, locating 'clamping.
utting tool guiding to perform machiningoperation.
-
7/24/2019 01-Introduction of Jigs &Fixtures
3/13
(
DRILL JIG
TOP PLATE
JIG BUSH
BASE PLATE
COMPONENT
WING NUT CLAMP
V - BLOCKSIDE CLAMP
LOCATING PLATE
-
7/24/2019 01-Introduction of Jigs &Fixtures
4/13
)
What is a Fixtu!"
Fi*ture is a #$% h$&'i(g '!)i*!used tolocate accurately and to hold securelysingle or multiple work pieces so that there+uired machining operations can e
performed.
$ fi*ture should e securely fastened tothe machine tale.
-
7/24/2019 01-Introduction of Jigs &Fixtures
5/13
-
Function of a Fi*ture
$s a workholding device, fi*ture help tosimplify metal working operations
performed on special e+uipment, as well
as to utili/e all standard machine tools.
-
7/24/2019 01-Introduction of Jigs &Fixtures
6/13
0
&ork piece
lamping
element
wing c
washer
utter
$ngle plate
ase plate!enon
lamping
force
#rientation3andle
-
7/24/2019 01-Introduction of Jigs &Fixtures
7/13
4
5ifference etween Jigs ' Fi*tures
J"%
"t is a work holding
device, which holds
and positions thework piece and
guides the cutting
tools to the work
piece
F"6!U78
"t is work holdingdevice, which hold and
positions the work pieceand does not guide 'locate the cutting tool
-
7/24/2019 01-Introduction of Jigs &Fixtures
8/13
9
5ifference etween Jigs ' Fi*tures
J"%
"t is usually not fi*edto the machine tale :
in case of small si/eholes : less than dia.0 mm.;
"t is usually light in
construction "t is only used for
machining operation
F"6!U78
"t is usually fi*ed to themachine
tale"t is usually heavier inconstruction
#ther than machining
operation, it is also usedfor assemly andwelding, inspectionoperations etc.,
-
7/24/2019 01-Introduction of Jigs &Fixtures
9/13
7#5U!"#N, $ "! 8?"@"N$!8 !38?$="N% #U! #F A $N5 8!!"N%
U> #F U!!"N% !##?.
!# "N78$8 !38 >7#5U!"#N
!# $U78 3"%3 $U7$= #F !38>$7!
-
7/24/2019 01-Introduction of Jigs &Fixtures
10/13
1B
&3= !38 J"% ' F"6!U78 $78 U85
!# >7#C"58 F#7
"N!873$N%8$"?"!=
!# 8N$?8 38$C= $N5 #@>?86
3$>85 >$7! !# 8 @$3"N85
!# 785U8 !38 #! #F DU$?"!=
#N!7#?
-
7/24/2019 01-Introduction of Jigs &Fixtures
11/13
11
&3= !38 J"% ' F"6!U78 $78 U85
:contd.,;
!# "N78$8 !38 C87$!"?"!= #F
@$3"N8 !##?
!# 8@>?#= UNA"??85 ?$#U7
!# $C8 ?$#U7 #!
-
7/24/2019 01-Introduction of Jigs &Fixtures
12/13
12
&3= !38 J"% ' F"6!U78 $78 U85
:contd.,;
!# >$7!"$??= $U!#@$!8 !38
@$3"N8 !##?
!# "@>7#C8 !38 $F8!= $! A,
!3878= !# 785U8 !38 7$!8 #F
$"58N!.
-
7/24/2019 01-Introduction of Jigs &Fixtures
13/13
1(
5"$5C$N!$%8 #F J"% ' F"6!U78
J"% E F"6!U78 @$= 8#@8 ##?8!8 "F!3878 " $N= 3$N%8 #F >7#5U!58"%N
"N"!"$? 58C8?#>@8N! !"@8
N#! 8#N#@"$? "F $!3 "8 " C87=?8
?"@"!$!"#N "N $3"8C"N% !38 >$7!!#?87$N8.