基于工艺特征的数控编程方法研究

摘要

以零件的工艺特征为基础，系统地研究了不同的机械加工工艺的编程方法。基本编程实现了机械加工工艺数控指令化。固定循环简化了典型加工工艺单元的编程，加工相同工艺内容用子程序编程，加工函数面用变量编程，加工零件族系列零件用参数化编程，加工自由曲面用CAM自动编程。同时通过数控编程技术的综合应用，实现了粗/精加工、自由平面轮廓倒圆角等工艺。%Expounds the basic principle of programming in the perspective of Mechanical Processing Tech-nology ( MPT) , and develops the environment for such various MPT. The Numerical Control ( NC) direc-tion for MPT is realized by basic programming, while simplified programming for typical processing unit by fixed cycle, identical MPT contents by sub-routine programming, functional surfaces by variable program-ming, part series process by parametric programming and free-form surface by automatic CAM program-ming. Meanwhile, by integrating the NC programming technology, some complicated technology is imple-mented such as the rough and finish machining, free surface contour fillet, etc.