A Revised B Spline Interpolation Algorithm of CNC Machining

摘要：

In modern CNC machining, the interpolation of complex profile curve with high speed and high accuracy is required. Based on B spline curve theory, a revised algorithm of cubic B spline curve interpolation is presented in the paper. This proposed algorithm gives a new method which is based on pre-judgment of machining feedrate to calculate the tangent vectors of spline curve junction. The tangential vectors are used to establish the spline curve equations with time as a parameter. The trajectory and feedrate profile can be generated simultaneously with these equations. The simulation results show that the algorithm has high calculation efficiency and meet the demands of trajectory accuracy and feedrate smoothing.

作者: Lei LUO Jun HU Fang LIU Zhenqiang YAO

作者单位: School of Mechanical Engineering,Shanghai Jiao Tong University,200240,Shanghai,China School of Mechanical Engineering,Shanghai Jiao Tong University,M.S.,200240,Shanghai,China

会议类型: 国际会议

会议名称: 2009 IEEE International Conference on Information and Automation(2009年 IEEE信息与自动化国际学术会议)

会议地点: 珠海、澳门

会议语种:英文

页码: 848-853

在线出版日期: 2009-06-22（万方平台首次上网日期，不代表论文的发表时间）