| 基于三角网格曲面的环切粗加工刀轨生成算法 |
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| 引用本文： | 孙殿柱,朱昌志,崔传辉,田中朝.基于三角网格曲面的环切粗加工刀轨生成算法[J].华中科技大学学报(自然科学版),2011(6):83-86. |
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| 作者姓名： | 孙殿柱 朱昌志 崔传辉 田中朝 |
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| 作者单位： | 山东理工大学机械工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(51075247); 山东省自然科学基金资助项目(ZR2010EM008) |
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| 摘 要： | 提出一种基于三角网格曲面的环切粗加工刀轨生成算法,该算法采用R*-tree建立三角网格曲面的动态空间索引结构,基于该结构快速建立三角网格模型的Z向包络面,采用R*-tree建立Z向包络面的索引结构,对切削平面与Z向包络面求交获取截面轮廓环,判断截面轮廓环的环向,并依据轮廓环间的拓扑关系确定切削区域,通过对轮廓环进行等距偏置获取环切粗加工刀轨.实例证明:该算法对各类复杂三角网格曲面均可准确生成无干涉环切粗加工刀轨,并可实现模型的区域性加工.
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| 关 键 词： | 三角网格曲面 R*-tree Z向包络面 截面轮廓环 等距偏置 环切粗加工刀轨 |
Triangular mesh surface-based generation algorithm of contour-parallel rough tool-path |
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| Sun Dianzhu Zhu Changzhi Cui Chuanhui Tian Zhongchao.Triangular mesh surface-based generation algorithm of contour-parallel rough tool-path[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2011(6):83-86. |
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| Authors: | Sun Dianzhu Zhu Changzhi Cui Chuanhui Tian Zhongchao |
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| Institution: | Sun Dianzhu Zhu Changzhi Cui Chuanhui Tian Zhongchao(School of Mechanical Engineering,Shandong University of Technology,Zibo 255091,Shandong China) |
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| Abstract: | An generation algorithm of contour-parallel rough tool-path based on triangular mesh surface was proposed.Firstly,the index structure of triangular mesh surface was established with R*-tree,and Z-direction envelope surface was calculated.Secondly,the index structure of envelope surface was built,and contour loops of tool-path were obtained by intersection of envelope surface and the cutting plane.Thirdly,the direction of contour loops was adjusted and the topological relationship of contour loops was establ... |
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| Keywords: | triangular mesh surface R*-tree Z-direction enveloping surface tool-path contour loop equidistant offsetting contour-parallel rough tool-path |
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