| 细分曲面的NC刀轨生成算法及实现 |
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| 引用本文： | 钟大平,周来水,王占东,周海.细分曲面的NC刀轨生成算法及实现[J].东南大学学报(自然科学版),2004,34(1):50-53. |
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| 作者姓名： | 钟大平 周来水 王占东 周海 |
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| 作者单位： | 南京航空航天大学CAD/CAM工程研究中心,南京,210016;南京航空航天大学CAD/CAM工程研究中心,南京,210016;南京航空航天大学CAD/CAM工程研究中心,南京,210016;南京航空航天大学CAD/CAM工程研究中心,南京,210016 |
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| 基金项目： | 教育部优秀青年教师资助计划，江苏省青年科技人才基金 |
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| 摘 要： | 提出了一种基于LOOP细分规则的NC精加工刀轨生成算法,该算法将细分曲面应用于CAD/CAM系统,适用于任意拓扑的三角网格模型;通过控制曲面等距误差来生成满足给定精度要求的NC刀轨.其核心思想是:首先计算LOOP细分曲面控制顶点的极限点和法矢量,然后从极限点开始,沿其法矢方向以球头刀的半径长度按照给定精度向外等距,获得等距曲面,最后在等距曲面上生成精加工数控刀轨.实例表明该算法稳定、高效、误差小.
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| 关 键 词： | 细分曲面 LOOP细分 曲面等距 NC刀轨 |
| 文章编号： | 1001-0505(2004)01-0050-04 |
Algorithm and implementation of generation of NC tool path for subdivision surface |
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| Zhong Daping,Zhou Laishui,Wang Zhandong,Zhou Hai.Algorithm and implementation of generation of NC tool path for subdivision surface[J].Journal of Southeast University(Natural Science Edition),2004,34(1):50-53. |
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| Authors: | Zhong Daping Zhou Laishui Wang Zhandong Zhou Hai |
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| Abstract: | Based on the LOOP subdivision scheme, a new approach to generate NC accuracy cutting tool path from a surface is presented. Our algorithm applies a subdivision surface to CAD/CAM system,adapts to an arbitrary topology triangle model and produces NC cutting tool path with given precision by controlling the offset surface error.By using the limit points, the normal vectors of these points from subdivision surface mesh and the radio of the ball end milling cutter, an offset surface with controlling accuracy is produced, then an accurate cutting tool path from the offset subdivision surface is generated. Practical examples are given to show stability, high efficiency and low error of the algorithm. |
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| Keywords: | subdivision surface LOOP subdivision offset surface NC tool path |
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