曲面三坐标数控加工程序的开发

The programming of 3－ axis NC machining of surfaces

探讨了曲面三坐标数控加工程序开发的基本方法和步骤。推导出刀位数据的计算公式，给出约束检验、自干涉检验等常遇问题的处理方法。实现截平面法、参数线法和投影法等刀路规划方式的程序编制，给出了应用实例。

This paper discusses the basic programming methods and steps of 3－ axis NC machining of surfaces. It presents the formulae for computing the cutter location data, and introduces the approaches to deal with inspection of constraints and self－ interference. The programming for some tool path planning methods, including sectioning method, isoparametric method and projecting method, is implemented. Finally some applications are illustrated.