MOTION VELOCITY SMOOTH LINK IN HIGH SPEED MACHINING  

作　　者：REN Kun FU Jianzhong CHEN Zichen 

机构地区：[1]Mechanical Engineering Department, Zhejiang University, Hangzhou 310027, China

出　　处：《Chinese Journal of Mechanical Engineering》2007年第2期17-20,共4页中国机械工程学报（英文版）

基　　金：This project is supported by National Hi-tech Research and Development Program of China (863 Program, No. 2002AA421150);Specialized Re-search Fund for Doctor Program of Higher Education of China (No. 20030335091).

摘　　要：To deal with over-shooting and gouging in high speed machining, a novel approach for velocity smooth link is proposed. Considering discrete tool path, cubic spline curve fitting is used to find dangerous points, and according to spatial geometric properties of tool path and the kinematics theory, maximum optimal velocities at dangerous points are obtained. Based on method of velocity control characteristics stored in control system, a fast algorithm for velocity smooth link is analyzed and formulated. On-line implementation results show that the proposed approach makes velocity changing more smoothly compared with traditional velocity control methods and improves productivity greatly.To deal with over-shooting and gouging in high speed machining, a novel approach for velocity smooth link is proposed. Considering discrete tool path, cubic spline curve fitting is used to find dangerous points, and according to spatial geometric properties of tool path and the kinematics theory, maximum optimal velocities at dangerous points are obtained. Based on method of velocity control characteristics stored in control system, a fast algorithm for velocity smooth link is analyzed and formulated. On-line implementation results show that the proposed approach makes velocity changing more smoothly compared with traditional velocity control methods and improves productivity greatly.

关 键 词：High speed machining Motion velocity link S-type control equation 

分 类 号：TG502.35[金属学及工艺—金属切削加工及机床]