基于Matlab的串并联机床空间误差建模及补偿**!  

Volumetric error modeling & its compensation of series-parallel machine tool based on Matlab software

作　　者：刘守法[1] 王鹏飞[1] 王建锋[2] LIU Shoufa;WANG Pengfei;WANG Jianfeng(School of Mechanical Engineering,Xijing University,Xi＇an 710123,CHN;Intelligent Manufacturing Research and Development Center,Xijing University,Xi＇an 710123,CHN)

机构地区：[1]西京学院机械工程学院,陕西西安710123 [2]西京学院智能制造研发中心,陕西西安710123

出　　处：《制造技术与机床》2018年第8期96-101,共6页Manufacturing Technology & Machine Tool

基　　金："工信部"高档数控机床与基础制造装备科技重大专项:面向航天复杂系统系列结构件制造换脑工程(2017ZX04011010);陕西省教育厅专项科研计划基金项目:卷积模型预测铣床加工误差研究(15JK2172);西京学院高层次人才专项基金项目(XJ17B03)

摘　　要：构建了5-DOF串并联机床的正解和逆解误差运动方程。基于Matlab程序对正解运动方程进行编程,根据原始误差参数仿真出机床空间误差补偿前刀具切削模型,根据隐含误差参数仿真出机床空间误差补偿后刀具切削模型。对比补偿前和补偿后模型的面形误差,结果表明:补偿前和补偿后模型的面形误差均呈现四周大中间小,通过误差补偿可有效减小机床空间误差。Positive kinematic equations and inverse kinematic equations of the 5-DOF series-parallel machine tool were constructed. Using the Matlab program of the positive solution motion equation,the cutting model with uncompensated errors was simulated according to the original error parameters,and the cutting model with compensated errors was simulated according to the implicit error parameters. The surface form errors of the model with uncompensated errors and with compensated errors were compared. The results show that the surface form errors of the model with uncompensated errors and with compensated errors both decreases gradually from periphery to center. Volumetric error of the machine tool could be reduced effectively by error compensation.

关 键 词：机床空间误差补偿 串并联机床 正解运动方程 逆解运动方程 面形误差 

分 类 号：TH161[机械工程—机械制造及自动化]