数控循环切削中刀具定位起始点的确定

Determination of tool positioning starting point in CNC circulation cutting

重点介绍G71、G90、M98/M99这类有循环加工功能的指令格式、通过各参数含义的说明、循环路线的讲解,来说明循环起点在上述指令的确定方法,正确定位,避免打刀及空运行,对提高加工效率有一定的帮助。

In this article,focusing on G71,G90,M98/M99,the function of such a cycle of processing instruction format note is introduced.By explaining the meaning of each parameter cycle routes and cycle starting point,determining method in the above is illustrated,which can make people use positioning in a correct way,avoid fighting knife and empty running,and improve the processing efficiency.