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过去,我厂制造螺纹环规,一直采用车削螺纹留余量,淬火后研磨精加工的方法。但采用这种方法,生产周期长,效率低,合格率不高,因而环规供不应求,成了生产关键。为了解决这个关键,我们采用了螺纹环规淬火后挑扣新工艺。用此工艺加工的环规精度达到2a级,根据环规直径大小,精度控制在+0.016～+0.008毫米范围内,光洁度在9以上,完全符合图纸要求。新工艺缩短了
In the past, I plant the manufacture of thread ring gauge, has been used to leave the remaining amount of thread turning, grinding and finishing after quenching methods. However, this method, the production cycle is long, low efficiency, low pass rate, which ring gauge in short supply, has become the key production. In order to solve this key problem, we adopted a new method of trimming the thread ring after quenching. The precision of the ring gauge processed by this process reaches level 2a. According to the diameter of the ring gauge, the accuracy is controlled within the range of +0.016 to +0.008 mm, and the finish is above 9, which fully meets the requirements of the drawings. The new process is shortened