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国内目前对插削精度为7级和7级以下的汽车、拖拉机和机床卤轮,常常以插齿作为齿形加工的最后工序,对于模数为3和小于3的齿轮,有的工厂是以一次插到全齿深,此时,在齿切出面近根部位上,往往出现有明显的挤伤沟痕(见图1),使得齿面光洁度大大降低,影响齿轮传动质量和寿命。有的工厂为了提高齿面光洁度,有时采用两次圆周进给循环的方法,但是这样做降低了生产率,因此,探讨挤伤原因和寻求解决措施对提高齿面质量和插齿生产率是有
At present, China’s trampoline and machine tool halves for plunge cutting accuracy of 7 and below are often used as the final process of tooth profile machining. For the gears with module number 3 and less than 3, some factories are based on Once inserted into the whole tooth deep, at this time, near the root of the tooth cut out the face, there is often a significant squeeze trench (Figure 1), making the tooth surface finish is greatly reduced, affecting the gear transmission quality and life expectancy. Some factories in order to improve the tooth surface finish, and sometimes the use of two circumferential feeding cycle, but this reduces productivity, therefore, to explore the causes of crushing and finding solutions to improve tooth quality and gear production rate