我厂生产轴类零件较多,按工艺要求轴的两端中心孔要研磨,光洁度▽7。过去在普通车床上加工,先研磨一端(三爪卡盘夹紧)再研另一端,效率低。后来,我们设计制造了结构简单的双中心孔研磨机(图1),取消了三爪卡盘 I plant production shaft parts more, according to the process requirements of the shaft at both ends of the center hole to be ground, finish ▽ 7. In the past in the ordinary lathe processing, grinding one end (three claw chuck clamping) and then study the other end, low efficiency. Later, we designed and manufactured a simple double center hole grinder (Figure 1), eliminating the three-jaw chuck