摘要
为解决五轴加工中刀具矢量变化不均匀引起减速和加速的反复发生,带来加工形状变得粗糙和加工时间变长的问题,提出一种刀具矢量压缩平滑定向插补算法。通过对指令程序进行压缩处理,可以去除刀位点和刀具矢量变化小的指令,对刀具矢量平滑处理,可以使得刀具矢量的变化与线性轴的变化一致,定向插补是对优化后的指令刀位点数据和刀具方向进行插补计算,以实现高速加工。通过仿真实验验证了该算法的有效性和可行性。
To solve problems that the machined shape becomes rough and the machining time becomes long in five-axis machining posed by deceleration and acceleration are repeated due to uneven change of the tool posture vector. A compression smooth orientation interpolation of tool posture vector was developed. A program command to a block having small changes in a tool center point position and a tool posture vector was removed by compression process. Tool posture vector command was smoothed to attain a change of tool posture vector in proportion with that of the linear axis command. The orientation interpolation is performed on the optimal commands processed by compression smooth to achieve a high speed machining. A simulation test was performed to verify the effectiveness and feasibility of this algorithm.
出处
《组合机床与自动化加工技术》
北大核心
2015年第4期104-107,118,共5页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金项目(61202098)
关键词
五轴加工
压缩平滑
刀具矢量
定向插补
five-axis machining
compression smooth
tool posture vector
orientation interpolation
