基于数控系统用户宏的固定循环功能实现

摘要

There are a lot of process features with similar shapes and different sizes in the production of machine. These process features can be programmed a macro - program and found into fixed cycle function. It can expand the function of NC system and improve the speed of programming. This paper takes the production of lathing V - shap annular groove as an example to introduce the method of found fixed cycle function, which can be used for CNC turning with V - shap groove or straight groove.%机械加工中经常出现形状相似而尺寸不同的加工特征。对于这类加工特征，可以利用数控系统的用户宏功能编写宏程序，然后设置成固定循环功能，以扩展数控系统功能，提高编程速度。文章以车削V形槽为例说明编写宏并设置成固定循环功能的方法，可用于V形槽、直槽类加工特征的数控车削加工。