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弹簧夹头的制造,一般是将锥部留出一段不开穿,待热处理及精磨内外圆后,再用片形砂轮割穿。但由于热处理的变形,所造成的应力大部分留在工件前端部位,而在成品割穿时,容易使弹簧夹头内外圆发生不同心度偏差。经多次试验后,采用了如图所示的改进方法,在弹簧夹头毛坯的前端放长一圆柱部分 L,而将槽开到此
Collet chuck manufacturing, the general cone is not allowed to leave a period to be heat treated and refined inside and outside the circle, and then cut through the disc-shaped grinding wheel. However, due to the deformation of heat treatment, most of the stress caused by leaving the front-end parts of the workpiece, and cut in the finished product, easy to make the collet chuck internal and external circular eccentric deviation. After several tests, an improved method as shown in the drawing was employed to elongate a cylindrical portion L at the front end of the collet chuck while the groove was opened to this