摘要
采用曲面分片思想建立复杂参数曲面模型并进行了曲面特征分析。在曲面片域内基于环形铣刀几何特征的一般性,进行了精度误差分析,建立了等波高刀具路径规划策略,使刀具姿态随工件曲面的曲率而变化,并完成曲面片间的光顺整合。基于该分片算法,可有效改善复杂曲面的加工质量并能积极预防刀具与工件的干涉。
Fragmentation method is applied to create model of complicated parametric surface and in consequence, surface feature is analyzed.On the basis of the geometrically universal characteristic of torus end-mill tool,the precision error of the track is analyzed and the tool path generation algorithm on occasion of iso-scallop is given.Then the fair of the pieces is processed.According to this algorithm,tool-pose changes along with the curvature of machining surface,which leads to the improvement of machining quality as well as the prevention of interference between workpiece and tool.
出处
《计算机工程与应用》
CSCD
北大核心
2008年第32期246-248,共3页
Computer Engineering and Applications
基金
国家自然科学基金(the National Natural Science Foundation of China under Grant No.50475117)
天津市重点科技攻关项目(No.06YFGZGX18200)。
关键词
分片建模
环形刀
曲面特征
刀具姿态
刀具路径
fragmentary modeling
torus end-mill
surface feature
tool pose
tool path
