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目前普遍使用的剃齿夹具(图1),是螺纹联接,剃齿精度受到影响,效率低。而图2所示导向套的制造,因热处理后回磨φ孔直径与60°中心孔的同轴度很难保证。
Currently widely used shaving fixture (Figure 1) is a threaded connection, shaving accuracy is affected, inefficient. The manufacturing of the guide sleeve shown in FIG. 2 is difficult to guarantee because of the coaxiality between the φ-hole diameter and the 60 ° center hole after heat treatment.