普通车床刀架大都是手动操作,在多工位车削中转动频繁,特别在定位销磨损下,重复等分精度不易保证,影响加工质量。我们在改造C620车床时,应用电动刀架装置,基本解决手动转位和低精度定位的问题,取得了较好的效果。电动刀架结构如图1所示,主要由抬起夹紧、转位分度和自动定位等机构组成。需要刀架转位时,给电机输入正向启动信号,电机将旋转运动通过齿轮减速器、蜗杆、蜗轮传 Ordinary lathe turret are mostly manual operation, turning frequently in multi-position turning, especially in the wear of the positioning pin, repeat the accuracy is not easy to ensure the accuracy of sub-, affecting the processing quality. We transform the C620 lathe, the application of electric tool holder device, the basic solution to the problem of manual indexing and low-precision positioning, and achieved good results. Electric knife holder structure shown in Figure 1, mainly by the lifting of clamping, indexing and positioning institutions such as automatic positioning. Need turret translocation, to the motor input positive start signal, the motor will rotate through the gear reducer, worm, worm gear