为消除轴类零件的应力集中,一般在轴阶梯处设置外圆弧R。对于尺寸较小的零件,R较小,均可手工简单加工。但对于尺寸很大的零件,如果阶梯大,就得设置较大的圆弧R。如图1所示的转子轴,其圆弧R车削时如不用工装,用手动加工极为困难。为此我们设计了车轴外圆弧装置,如图2所示。 1.结构特点 该装置主要由手轮、蜗杆传动、传动轴、圆锥齿轮传动、夹具体和刀架等组成。夹具体的尺寸,设计成能装夹于车床刀架上,能用支紧螺钉夹紧。该装置使用时应调整刀尖中心高与车床回转中心一致,并根据加工 In order to eliminate the stress concentration of shaft parts, generally set the outer arc R at the shaft step. For smaller parts, R is small, can be simple manual processing. But for large parts, if the ladder is large, you have to set a larger arc R. As shown in Figure 1, the rotor shaft, the arc R turning without tooling, manual processing is extremely difficult. To this end, we designed the axle arc device, shown in Figure 2. 1. Structure Features The device is mainly composed of handwheel, worm drive, drive shaft, bevel gear drive, clamp body and knife holder. Clamp specific size, designed to be able to clamp the lathe turret, clamping screws can be used to support. The device should be used to adjust the tip center height and lathe rotation center, and according to the processing