我厂有一零件如图1所示,需加工带有台肩的M12螺纹孔,由于批量大,如果采用传统的加工方法,划线、钻、攻丝,不但加工难度大,效率低,而且精度难以保证。为此,我们把此道工序改为车床加工,并设计了1套工装夹具。1结构该夹具主要由锥柄1、夹具体2、压紧部分等组成(如图2所示)。2使用 I plant a part shown in Figure 1, the need to process with M12 tapped holes, due to the large batch, if the traditional processing methods, marking, drilling, tapping, not only difficult to process, low efficiency, and accuracy Difficult to guarantee. For this reason, we changed this procedure into lathe processing, and designed a set of fixture. 1 Structure The fixture is mainly composed of taper shank 1, clamp body 2, compaction parts (Figure 2). 2 use