图1中的部件,由于没有外圆柱段,加工时装夹很困难。过去采用小螺纹芯轴作辅具进行装夹加工,不仅费时费力,而且使精度等级降低,甚至有时还会卡死。为此,我们设计了图2所示的锥形套。加工时,首先将锥形套装夹在三爪夹盘中,然后将产品小头放入锥形套 The parts in Figure 1, due to the absence of the outer cylindrical section, make clamping difficult during machining. In the past, the use of a small threaded mandrel as a fixture for clamping did not only take time and effort, but also reduced the accuracy level and sometimes even stuck. To this end, we designed the conical sleeve shown in Figure 2. Processing, the first conical suit folder in the three-jaw chuck, and then put the product into the conical sleeve