本帖最后由 伊凡 于 2011-5-11 15:21 編輯 3 Z& f, z. ~3 B. L8 ^4 ?8 V/ Q; H. `
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A jig is a device, which holds and supports the work and also guides the path of the
) Z2 m! z t5 Y' [ S, Dcutting tool, as the operation is performed. Jigs are used extensively for operations such as; j% R" ~7 b& T; X
drilling, reaming, tapping and counter-boring. The jig need not be secured to the machine.
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A fixture is a device which locates and holds the work securely in a definite position. It6 S& z6 H4 \9 _, d; v- w
is usually secured to the table of the machine and it does not guide the cutting tool. The cutting6 q7 |* j; R7 H: @, J' W' `& G
tool is either moved into position for the operation or the table is moved under the cutting tool.# v9 r6 E+ D) B" z
Fixtures are used while performing milling, turning, honing, broaching, grinding and welding
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