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本文对数控编程的两种标准ISO6 983与ISO14 6 4 9(STEP -NC)进行比较 ,分析ISO6 983的不足和ISO14 6 4 9(STEP -NC)的特点 ,给出STEP -NC面向对象的数据模型结构 ;讨论了ISO14 6 4 9(STEP -NC)中Part11所定义的铣削加工特征 ,并给出一个简单零件的STEP -NC编程实例
In this paper, two standards of NC programming ISO6 983 and ISO14 6 4 9 (STEP -NC) are compared to analyze the deficiencies of ISO6 983 and the characteristics of ISO14 6 4 9 (STEP -NC), STEP-NC object-oriented data is given Model structure; discusses the milling feature defined by Part 11 of ISO 14 6 4 9 (STEP -NC) and gives a STEP-NC programming example of a simple part