本帖最后由 伊凡 于 2011-5-11 15:21 編輯 1 f8 m6 `, [1 T+ Q$ V* T5 l
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A jig is a device, which holds and supports the work and also guides the path of the
4 _8 R x3 e+ a2 M- s7 Rcutting tool, as the operation is performed. Jigs are used extensively for operations such as
9 ]( S# X- Z0 P, s( Udrilling, reaming, tapping and counter-boring. The jig need not be secured to the machine.9 t( f) Y7 E- P
0 K# y4 u3 @ X9 UA fixture is a device which locates and holds the work securely in a definite position. It' f8 R3 ?* T; J, Y' ^, U( @& v
is usually secured to the table of the machine and it does not guide the cutting tool. The cutting
* i N/ f+ O3 u9 ~$ ltool is either moved into position for the operation or the table is moved under the cutting tool.- R8 |8 a( ]+ Q& ] o1 M
Fixtures are used while performing milling, turning, honing, broaching, grinding and welding
# q$ z0 q9 {; E, u2 loperations.
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