本帖最后由 伊凡 于 2011-5-11 15:21 編輯
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4 G9 A5 y% u& j$ {+ bA jig is a device, which holds and supports the work and also guides the path of the6 M G' {+ s; Q7 X& N( |
cutting tool, as the operation is performed. Jigs are used extensively for operations such as
/ V+ _( }- Z3 ?' [- q1 [drilling, reaming, tapping and counter-boring. The jig need not be secured to the machine.
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( T. Q0 e$ Z5 X: LA fixture is a device which locates and holds the work securely in a definite position. It
/ _+ [. D$ H+ k( B5 k8 Z2 C& His usually secured to the table of the machine and it does not guide the cutting tool. The cutting9 ]9 t2 Q/ R4 ]" H, Z/ n0 |! s, ?
tool is either moved into position for the operation or the table is moved under the cutting tool./ u8 H6 F- C: k3 @+ d S5 u
Fixtures are used while performing milling, turning, honing, broaching, grinding and welding6 e+ K$ r8 P' {# A* y. r. a/ e
operations.
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