交叉耦合算法的超精密数控机床伺服控制  

Cross-Coupling Algorithm Based Servo Control of Ultra-precision CNC Machine Tool

作　　者：李圣怡[1] 张云洲[1] 张明亮[1] 朱建忠[1] 

机构地区：[1]国防科技大学

出　　处：《制造技术与机床》2000年第7期10-12,共3页Manufacturing Technology & Machine Tool

摘　　要：超精密加工的轮廓精度控制直接影响到工件的加工精度 ,交叉耦合控制算法通过对两轴进行协调而影响轮廓控制精度。文章在分析超精密数控机床误差模型的基础上 ,将变增益交叉耦合控制算法引入超精密数控机床的伺服控制。实验结果表明 :变增益交叉耦合控制算法可以在不改变位置环的情况下 ,有效地提高系统的轮廓精度。s:The machining accuracies of workpieces are directly influenced by contour accuracy control in ultra precision machining, and the contour control accuracy is effected by coordination of the two axes given by the cross coupling controlling algorithm. On the basis of analysis on error model of ultra precision CNC machine tool, the variant gain cross coupling control algorithm is introduced into the servo control of ultra precision CNC machine tool. The experiment result shows that the contour accuracy can be improved effectively by the algorithm without changing the position loop.

关 键 词：超精密数控机床 变增益交叉耦合控制 伺服控制 

分 类 号：TG659.023[金属学及工艺—金属切削加工及机床]