• CN:11-2187/TH
  • ISSN:0577-6686

›› 2002, Vol. 38 ›› Issue (10): 50-53.

• 论文 • 上一篇    下一篇

基于三角网格曲面模型的刀位轨迹计算方法

孙玉文;刘伟军;王越超   

  1. 大连理工大学机械工程学院;中国科学院沈阳自动化研究所
  • 发布日期:2002-10-15

RESEARCH ON THE ALGORITHM OF NC TOOL PATH CALCULATION FOR TRIANGULAR SURFACE MACHINING

Sun Yuwen;Liu Weijun;Wang Yuechao   

  1. Dalian University of Technology Shenyang Institute of Automation, Chinese Academy of Science
  • Published:2002-10-15

摘要: 离散三角网格模型在CAD/CAM中应用很广,但针对该模型的刀位轨迹自动生成算法并不多见。在正确重建网格模型的拓扑关系基础上,给出了新的曲面几何特性分析方法,并提出了具有特色的精确的刀位轨迹计算方法,克服了直接由网格模型求交计算刀位方式存在的精度问题。测试结果显示,该方法简捷、可靠,能够达到实用化要求,并显著提高了刀位计算精度和加工效果。

关键词: 刀具轨迹, 三角网格, 数控加工

Abstract: Triangular mesh model is widely used in CAD/CAM field, but there are few tool path calculation algorithms for it. Based on reconstructing topology relations of triangular meshes, an analyzing method of geometric characteristics for triangular surfaces is presented. Moreover, an accurate algorithm of tool path calculation is also discussed. The results show that the tool path calculation precision can be efficiently improved by the proposed method.

Key words: NC machining, Tool path, Triangular surface

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