English

应用科学学报 ›› 2001, Vol. 19 ›› Issue (1): 62-65.

• 论文 • 上一篇    下一篇

组合曲面NC加工刀具轨迹的生成

陈涛, 陈钢, 汤进, 钟毅芳, 周济   

  1. 华中科技大学CAD中心, 湖北武汉 430074
  • 收稿日期:1999-12-12 修回日期:2000-04-17 出版日期:2001-03-31 发布日期:2001-03-31
  • 作者简介:陈涛(1962-),男,湖北武汉人,博士生.

Tool-path Generation in the NC Machining of Compound Surfaces

CHEN Tao, CHEN Gang, TANG Jin, ZHONG Yi-fang, ZHOU Ji   

  1. CAD Center, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:1999-12-12 Revised:2000-04-17 Online:2001-03-31 Published:2001-03-31

PDF

77

被引次数

24

摘要： 提出一种组合曲面NC加工刀具轨迹生成的新算法:将组合曲面进行三角化,并使三角形的顶点沿曲面法矢方向偏置一刀具半径值,依次连接偏置后的三角形各顶点,得偏置的三角形网格.以一组相互平行的平面去截偏置的三角形网格,将交线在截平面上进行调整并消除干涉,即得到组合曲面刀具轨迹.此算法已在实际中得到了很好的应用.

关键词: 三角化, 组合曲面, 刀具轨迹生成, 偏置

Abstract: An algorithm for tool-path generation in the NC machining of compound surfaces is presented:The compound surfaces are approximated by triangular meshes. The vertices of triangular meshes are offset along the normal direction at the vertices. All offset vertices are then connected to form an offset triangular mesh surface which is sliced by a series of vertical planes to obtain parallel tool-paths. The experimental NC machining results demonstrate the feasibility of the algorithm.

Key words: offset, compound surfaces, tool-path generation, triangulation

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