基于CQEM的海量测量点集刀位轨迹生成算法研究  

ALGORITHMIC RESEARCH ON TOOL-PATH GENERATION FROM SCATTERED MEASURE POINTS BASED ON CQEM

作　　者：黄运保[1] 王启付[1] 黄正东[1] 武剑洁[1] 

机构地区：[1]华中科技大学CAD中心,武汉430074

出　　处：《机械工程学报》2005年第1期93-97,共5页Journal of Mechanical Engineering

基　　金：国家'十五'科技攻关资助项目(2001BA201A02)

摘　　要：提出基于约束二次误差度量(CQEM)的海量测量点集刀位轨迹生成算法。算法以大规模测量点集为待加工曲面,依据刀具大小动态生成刀具邻域的插值网格,以平面截交网格交点作为初始刀触点,对其进行CQEM优化并细分该截交网格,在此基础上生成无干涉刀位轨迹。算法不仅利用网格的动态局部构造节约了大量的空间消耗而且通过刀触点集的COEM优化减小了加工曲面逼近测量点所在曲面的误差。An algorithm of tool-path generation from dense scattered measure points is presented based on constraint quadratic error metrics (CQEM). In the algorithm, interference free tool-path generates through measured points directly looking as surface for processing, mesh interpolating points dynamically constructing according to the size of tool, C-C points initialized with mesh interpolating plane and optimized by CQEM, which saves much memory and time and reduces machining error.

关 键 词：刀具轨迹 海量测量点集 CQEM优化 加工误差 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TH12[自动化与计算机技术—计算机科学与技术]