基于刀具空间包围体算法的数控切削仿真  

NC cutting simulation of tool space bounding volume algorithm

作　　者：李杨[1] 王子牛[2] 王彦[1] 梁佳[1] 

机构地区：[1]贵州大学计算机科学与信息学院,贵州贵阳550025 [2]贵州大学信息网络中心,贵州贵阳550025

出　　处：《计算机工程与设计》2012年第3期1073-1078,共6页Computer Engineering and Design

基　　金：贵州省科技厅基金项目(黔科合GY字[2008]3042);贵州大学研究生创新基金项目(校研理工2011042)

摘　　要：采用计算刀具空间包围体和刀具旋转体的方法来对仿真过程中的有效切削计算进行判断,刀具在一般运动情况下所占空间包围体的计算公式可由刀具的长度、半径以及刀具在任意时刻的刀位点、刀轴矢量来共同推导;刀具的旋转体范围可以通过刀具在当前时刻的刀轴矢量、母线方程以及刀具的半径、长度进行计算。该方法已经成功应用到基于OpenGL的VC6.0环境下所开发的五轴数控仿真系统中,实验结果表明,该方法能够提高有效切削率和减少切削计算耗时。The calculation of tool＇s space bounding volume and revolving solid will be used in the process of simulation calculation to determine the effective cutting. The formula of occupied space bounding volume that tool in the general movement is derived with tool＇s length, radius, and tool＇s cutter location at any time, tool axis vector. The scope of the tool＇s revolving solid is determined by the current tool axis vector, bus equation, and tool＇s length, radius. This method is successfully applied in the developed five-axis NC simulation system based on OpenGL in the environment of VC6.0, and experiment show that this method can improve the effective cuttin rate and reduce the computation time of cutting.

关 键 词：五轴 包围体 旋转体 切削率 切削耗时 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]