本帖最后由 伊凡 于 2011-5-11 15:21 編輯
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# q/ i# ~' b$ s, _6 qA jig is a device, which holds and supports the work and also guides the path of the; i' x9 w4 y J
cutting tool, as the operation is performed. Jigs are used extensively for operations such as
) Z( j" n4 g6 w0 g1 Kdrilling, 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. It
1 B! W4 W# Q1 Uis usually secured to the table of the machine and it does not guide the cutting tool. The cutting; @+ p. j5 B& J0 C
tool is either moved into position for the operation or the table is moved under the cutting tool.0 P8 d% t" j6 m
Fixtures are used while performing milling, turning, honing, broaching, grinding and welding: |! K; B. S4 L2 Q- @/ z
operations.6 D0 y1 u! i! f9 Y$ u) {( z
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