五坐标虚拟轴弹性研抛机床的环形轨迹规划  

Iso-circuit Algorithms for Tool-path Planning Based on Virtual-axis Elastic Polishing Machine Tool with Five Degrees of Freedom

作　　者：徐立国[1] 赵继[1] 孙瑞东[2] 徐卫[3] 

机构地区：[1]吉林大学机械科学与工程学院 [2]吉林大学通信工程学院 [3]空军航空大学基础部

出　　处：《农业机械学报》2007年第4期167-171,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：吉林省科技发展计划重点项目(项目编号:20040325)

摘　　要：以自行研制的五坐标虚拟轴弹性研抛机床为背景,按机床特性和残留高度要求提出两种实用的仿人弹性研磨抛光轨迹规划算法。其中平行环算法简单、运算速度快;而相关环算法可相对提高加工表面的粗糙度。这些方法均可用于自由曲面的直接插补,易于构成基于NURBS标准的面插补器。用Matlab软件对两种算法的正确性作了验证和仿真。这些算法通用性强,可用于自由曲面研抛的轨迹规划。Based on a specific virtual-axis elastic polishing machine tool with five degrees of freedom that we developed, two practical algorithms to generate tool-path according to the machine characters and the requirement of scallop height that could imitate elastic human polishing behavior were proposed. Among them, the parallel circuit algorithm was simple and fast in calculation while the correlative circuit method was more reliable in producing higher roughness of the work-piece. These algorithms can be used in direct interpolation for freeform surface and easy to be implanted in a surface interpolator based on NURBS standard. Simulation and test have been done with Matlab to verify the methods. These approaches can be commonly used in tool path generation in the field of freeform surface polishing.

关 键 词：虚拟轴机床 自由曲面 插补 刀具轨迹 残留高度 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TG580.6[自动化与计算机技术—计算机科学与技术]