本帖最后由 伊凡 于 2011-5-11 15:21 编辑 8 j3 b8 T* c$ e5 W& A" U/ D3 g
. E9 `: ?! Q' v B; k+ s) J7 TA jig is a device, which holds and supports the work and also guides the path of the1 }9 z+ N/ \! Z0 `* F
cutting tool, as the operation is performed. Jigs are used extensively for operations such as. n' t: p1 I$ F: M8 s) I
drilling, reaming, tapping and counter-boring. The jig need not be secured to the machine.1 w: G- O% o F, y [
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A fixture is a device which locates and holds the work securely in a definite position. It4 k' ]7 L; @6 B2 U4 k# x/ |
is usually secured to the table of the machine and it does not guide the cutting tool. The cutting0 N7 c2 f1 e, l
tool is either moved into position for the operation or the table is moved under the cutting tool." v: Q9 l; b2 e) Y/ W1 v
Fixtures are used while performing milling, turning, honing, broaching, grinding and welding
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