一般半圆键的尺寸较小,在加工中不便装夹,故生产率较低。另在铣切过程中,往往会产生定位不准而影响产品高度尺寸的一致性。根据V型块能自动定位的原理,笔者设计制造了一种铣半圆键夹具,加工时夹具不需对工件施加夹紧力,并对工件有自动定位 The general size of the semicircle key smaller, difficult to clip in the processing, it is less productive. The other in the milling process, often will not produce accurate positioning and affect the consistency of the product height dimensions. According to the V-block can automatically locate the principle, I design and manufacture of a milling half-round key fixture, processing fixture does not need to exert clamping force on the workpiece, and the workpiece has automatic positioning