摘要
给出用绝对坐标系表示的含两个回转工作台的刀心轨迹计算方法,采用等步长逼近法进行线性逼近处理;进行凸面加工时为避免刀具干涉,提出了凸面梯形补偿算法,得到了绝对坐标系下五轴加工小心的无刀具干涉的刀位数据计算公式,为五轴加工中心自动编程系统的数控数据获取提供了理论依据。此算法已用于五轴CNC系统的控制软件设计中.
A calculating method for the locus of cutter motion in an absolute coordinate system fora 5-axis NC machining center with two rotating tables is described. The linear approximationis carried out with an equi-step approach.To avoid cutter interference during the machiningof a convex surface, a trapezoidal compensation algorithm is proposed. All these have beenused in the control software design for a 5-axis CNC system.
出处
《华中理工大学学报》
CSCD
北大核心
1995年第3期18-21,共4页
Journal of Huazhong University of Science and Technology
基金
国家八五攻关项目
关键词
加工中心
逼近法
数控机床
刀心轨迹
numerical control
5-axis machining center
CL data
approximation with equi-step