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目前,在加工渐开线花键孔时,修正拉刀得到了日益广泛的应用。在实践中,这种拉刀的理论廓形是用圆弧或用与初始渐开线(被加工零件的渐开线)不同的渐开线来代替的。进行修正的有单锥的和多锥的渐开线拉刀。按照最完善的方法进行拉刀设计时,其廓形误差对于单锥拉刀为0.02～10微米,对于多锥拉刀为0.5～25微米。从上述数据中可以看出,最大误差,尤其是多锥拉刀的最大误差可能很大。不改变进给量或由设计
At present, when machining involute spline holes, broach broach has been more and more widely used. In practice, the broach’s theoretical profile is replaced by a circular arc or with an involute different from the initial involute (involute of the part being machined). Be amended with a single cone and multi-cone involute broach. Broach design according to the most complete method, the profile error for single-cone broach 0.02 ~ 10 microns, for the multi-cone broach 0.5 ~ 25 microns. It can be seen from the above data that the maximum error, especially the maximum error of the multi-cone broach, may be large. Do not change the feed or by design