高技术通讯2011，Vol.21Issue(11)：1185-1189,5.DOI:10.3772/j.issn.1002-0470.2011.11.012
三角Bézier曲面数控加工刀轨生成算法研究
Research on an algorithm for generating NC tool-paths based on triangular Bézier surfaces
摘要
Abstract
To improve the efficiency and precision of the numerical control ( NC) tool-path generation and to solve the tool-path interference, an algorithm for fast generating of NC tool-paths based on triangular Bezier surfaces is proposed. The algorithm marks out the cutter-location driving points according to the shape of the triangular Bezier surface model. The instantaneous machining area can be acquired rapidly based on the dynamic index of the triangular B6zier surfaces. The corresponding cutter-location point of each triangular Bezier surface in the instantaneous process area is calculated by the iterating computation and then the cutter location point which has the highest position in the axis direction is taken as the current cutter location point. Then the limit error is checked according to the adjacent cutter location points, and the tool-path precision is controlled by the binary interpolation. Ultimately, the required tool path is obtained which can meet the accuracy requirements. The accuracy and efficiency for obtaining the NC tool-path of the intricate triangular B6zier surface have been verified.关键词
三角Bézier曲面/刀位驱动点/动态索引/瞬时加工区域/数控加工刀轨Key words
triangular Bezier surface/cutter location driving point/dynamic index/instantaneous machining area/NC tool-path引用本文复制引用
孙殿柱,崔传辉,李延瑞,刘健..三角Bézier曲面数控加工刀轨生成算法研究[J].高技术通讯,2011,21(11):1185-1189,5.基金项目
国家自然科学基金(51075247)和山东省自然科学基金(ZR2010EM008)资助项目. （51075247）
