我厂产品中有不少中小型壳体零件,带有主腔孔和接管嘴孔,而这些孔的加工工艺基本相似(见图1)。由于这些零件的壳体外形不规则,壳体上只要有一个孔,就要设计制造一套专用角铁式车床夹具。因此,长期以来耗费了很多的人力物力,而且对于新品试制拖延了周期。为了减少专用工艺装备,缩短新品试制 I plant a lot of small and medium-sized housing parts, with the main cavity and takeover nozzle hole, and the processing of these holes are basically the same (see Figure 1). Because these parts of the shell shape irregular, as long as there is a hole in the shell, it is necessary to design and manufacture of a set of special angle lathe fixture. Therefore, a lot of manpower and material resources have been consumed for a long time, and the trial period for new products has been delayed. In order to reduce special technology and equipment, shorten the trial of new products