在加工空调器上FD402压缩泵中的曲轴时,由于曲轴偏心距较大,因而每当粗车、半精车、精车以及磨削加工时,我们都是采取校正夹具先车一刀或磨一刀后,再取下工件用万能工具显微镜检测其偏心距的方法,根据其误差大小对夹具进行调整。但工具显微镜操作复杂,花费时间较长,并且夹具校正困难,往往一副夹具需校几天时间。为了节约工时,我们设计了一副 In the processing of air conditioners FD402 compression pump in the crankshaft, due to large crankshaft eccentricity, so whenever the rough car, semi-fine car, fine car and grinding, we are taking corrective fixture first car knife or mill knife After removing the workpiece with a universal tool microscope to detect the eccentricity of the method, according to the size of the error on the fixture to adjust. However, the tool microscope operation is complicated, takes a long time, and fixture calibration is difficult, often a fixture to be a few days time. In order to save hours, we designed a pair