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矩形花键孔在机械制造中应用很广,多年来采用拉刀推刀来加工,但拉刀推刀使用有它的局限性和缺点,它制造复杂成本高,刀刃磨损后恢复原尺寸困难,它适用于大批生产。在维修备件生产中采用拉刀是极不经济的。而采用单刀插削加工花键孔又不容易达到精度要求,效率低。针对以上情况,我厂从1972年开始用“花键群插刀”代替拉刀,目前我厂已有六种规格用于生产使用效果良好。
Rectangle spline hole in machinery manufacturing is widely used, over the years by knife broach to broach, but broach knife use has its limitations and shortcomings, it is complicated to create high cost, restore the original size after the wear of the blade is difficult, It is suitable for mass production. It is extremely uneconomical to use a broach in the manufacture of spare parts. However, it is not easy to achieve the precision requirements by using a single-pole cutting spline hole, which is inefficient. In view of the above situation, I plant from 1972 began to use “spline group knife” instead of broach, I currently have six plant specifications for the production of good results.