目前,一些中、小型工厂由于缺少专用机床,因此对深锥孔的加工尚感困难。针对这一问题,我所革新了一套专用工具,其结构简单、使用方便,经多年使用效果较好。我所加工的工件长度为2000毫米,大端孔径为210毫米,锥度为1:200,材料是铸钢。加工时,先将工件外圆两端面加工好,在四爪卡盘上找正夹紧, At present, due to the lack of special machine tools in some medium and small factories, the processing of deep taper holes is still difficult. In response to this problem, I have renovated a set of special tools, the structure is simple, easy to use, after years of better results. The length of the workpiece I process is 2000 mm, the large end aperture is 210 mm, the taper is 1: 200 and the material is cast steel. Processing, the first two cylindrical workpiece surface processing, the four-jaw chuck to find positive clamping,