论文部分内容阅读
当加工内孔(圆孔或花键孔)与外圆同轴度要求较高的盘形零件(如各种花键套,齿轮等)时,往往先把内孔加工到图纸规定要求后,再以孔为定位基准加工各部外圆,这时所采用的工装是心轴,其结构形式固然有多种,但较简易而且配合精度较高的一种应是如图所示的心轴,这种心轴的特点有如下几点: (1)外圆具有1∶2000～1∶3000锥度;
When the processing of the hole (hole or spline hole) and the cylindrical coaxial requirements of the higher disk-shaped parts (such as various spline sets, gears, etc.), often the first hole in the processing requirements of the drawings, And then to the hole as the benchmark for the processing of various ministries, then the tooling used is the mandrel, of course, there are a variety of structural forms, but more simple and with a higher precision should be as shown in the mandrel, The characteristics of this mandrel are the following points: (1) cylindrical with 1: 2000 ~ 1: 3000 taper;