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实体模型的三轴数控粗加工刀轨生成算法
引用本文:庄海军,周儒荣,安鲁陵,周来水.实体模型的三轴数控粗加工刀轨生成算法[J].计算机辅助设计与图形学学报,2003,15(1):81-84.
作者姓名:庄海军  周儒荣  安鲁陵  周来水
作者单位:南京航空航天大学CAD/CAM工程研究中心,南京,210016
基金项目:教育部高校优秀青年教师教学科研奖励计划,江苏省青年科技基金(BQ2 0 0 0 0 0 4)资助
摘    要:提出一种适合实体模型的三轴数控粗加工刀位轨迹生成算法。首先根据加工行距作一组平行于刀轴的平面,与模型的待加工表面求交,得到一系列交线;再根据精度规划一组垂直于刀轴的分层平面,与上述交线求交,在每一分层平面上判断加工区域,规划出加工刀位轨迹,将每一分层平面上的刀位轨迹较适当的方式连接起来,就构成零件的整体加工轨迹。该算法避免了轮廓环等距、自交处理和布尔运算等复杂的计算过程;同时,对生成开型腔的加工刀位轨迹也是有效的。

关 键 词:实体模型  三轴数控粗加工  刀轨生成算法  CAD  CAM  数控加工  开型腔  NURBS曲面  曲面实体造型  粗加工
修稿时间:2001年9月29日

Automatic Tool Path Generation of Three-Axis NC Rough Machining Based on Solid Model
Zhuang Haijun,Zhou Rurong,An Luling,Zhou Laishui.Automatic Tool Path Generation of Three-Axis NC Rough Machining Based on Solid Model[J].Journal of Computer-Aided Design & Computer Graphics,2003,15(1):81-84.
Authors:Zhuang Haijun  Zhou Rurong  An Luling  Zhou Laishui
Abstract:A group of planes parallel to cutter axis are defined to cut the model surfaces to be machined and a series of intersecting curves are obtained. Then a set of planes perpendicular to cutter axis are built to trace out the plane areas in which the material should be removed, and the tool path is generated accordingly. The whole tool path is made by properly connecting those on different planes together. With this algorithm the complicated calculation procedures, such as offset, self-intersection checking and Boolean operation of profile loops are avoided. At the same time, the algorithm is also suitable to deal with virtual pocket milling.
Keywords:CAD/CAM  NC machining  solid models  virtual pocket
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