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ע⣺Փ Cе̌W(İ))2006,42(8):84-88,94l
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O1 ϼ1 ܊2 Խ2
1. BWcطNӹc B 116024;
2. ЇƌWԺԄӻо 110016

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ЈD̖TP391

PARAMETRIC METHOD FOR KINEMATIC PATH GENERATION FROM MANIFOLD MESHES

un Yuwen1 Wang Haixia1 Liu Weijun2
Wang Yuechao2
(1. Key Laboratory for Precision & Non-traditional Machining of Ministry of Education, Dalian University of Technology, Dalian 116024;
2. Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016 )


Abstract:Triangular mesh surface has gained wide applications in industrial field. However, the tool path generation methods for polyhedral machining are very limited and the iso-plane method is still the common used method. A conformal map based iso-parametric method for kinematic path generation is proposed. Through establishing the parametric relations between the triangular meshes embedded in the 3D space and the rectangular or circular region on the 2D plane, the Zigzag or contour paths are finally implemented by inversely mapping the planar iso-parametric paths into the physical space. Also, the issues of CC point and side interval calculation as well as interference detection are discussed in detail. The results show that the proposed method is boundary-conformed and can improve machining dynamics and efficiency greatly.
Key words:Triangular mesh, Conformal map, Tool path, Accessibility analysis

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