高速数控加工轨迹拐角的速度平滑方法  

Smoothing Algorithm for High Speed Machining at Corner

作　　者：何波[1] 罗磊[1] 胡俊[1] 谷寒雨[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《上海交通大学学报》2008年第1期83-86,共4页Journal of Shanghai Jiaotong University

摘　　要：基于梯形速度曲线的升降速控制方法,提出一种矢量过渡法来平滑处理高速数控加工的拐角轨迹和速度.通过超前分析,根据减速所需的最大距离求出开始过渡时的速度,并同时对相邻加工段进行插值;通过相邻加工段插值求出的位移相加,合成过渡时的曲线轨迹,进而求得过渡时的速度.实验结果表明,该算法能获得很好的速度响应和加工质量.Making feed speed smooth along the corner of two adjoining moves is the key measure to protect the machine tools and assure the machining quality and the efficiency of high speed machinery process. This paper presented an algorithm to make smooth the track and the velocity by adding adjoining moves vectors based on trapezoidal velocity profile. The algorithm is proposed for interpolating adjoining moves simultaneously according to the maximum distance decelerating to zero. This algorithm is verified to get good machining quality and velocity at the corner when high speed machining.

关 键 词：计算机数控 速度平滑 高速加工 矢量过渡 

分 类 号：TG519.1[金属学及工艺—金属切削加工及机床]