采用附图的夹具来加工锥形套简的外圆,可以简化操作,缩短辅助时间。附图的夹具,是由夹具主体1,手把2,套筒3,垫圈4和螺帽5组成。主体1的左端,装在车头四爪卡盘上;主体1的肩部带有螺纹,与手把2的螺纹配合;主体1的中部是锥 Using the attached fixture to process a tapered outer cylinder simplifies operation and shortens the auxiliary time. The clamp of the drawing is composed of a clamp body 1, a handle 2, a sleeve 3, a washer 4 and a nut 5. The left end of the main body 1 is mounted on the four-jaw chuck on the front of the vehicle; the shoulder of the main body 1 is provided with threads for cooperation with the threads of the handle 2; the middle part of the main body 1 is a cone