动梁式龙门机床双驱动态不同步误差补偿研究  

Research on Compensation of Dynamic Non-synchronous Errors of Dual-drive System in Gantry-type Machine Tools

作　　者：程瑶[1] 赵万华[1] 李玉霞[1] 杨清宇[2] 

机构地区：[1]西安交通大学机械制造系统工程国家重点实验室,西安710049 [2]西安交通大学电信与信息工程学院,西安710049

出　　处：《中国机械工程》2012年第8期915-919,共5页China Mechanical Engineering

基　　金：国家科技重大专项(2009ZX04009-015);国家重点基础研究发展计划(973计划)资助项目(2009CB724407)

摘　　要：针对动梁式龙门机床双驱动系统广泛存在的双驱不同步问题,测量并设计补偿控制器以补偿双驱动态不同步误差。首先规划了S形加减速曲线输入,利用光栅尺反馈测量出系统的不同步误差。然后设计了动态不同步误差补偿控制器,采用PID控制算法,实现了对双驱两同步轴动态不同步误差的补偿,其中PID控制算法的参数通过稳定边界法确定。最后,在DK-1200动梁式龙门数控机床上进行了实验,实验结果验证了该补偿控制器的有效性。In order to solve the problem of dynamic non-synchronous widely existing in dual drive machine tools,the non-synchronous errors were measured and a compensation controller was designed.First,a kind of S accelerate/decelerate curve was deduced,the dynamic non-synchronous errors were detected using linear scale.Second,PID compensation controller was designed to compensate the non-synchronous errors and the parameters of PID controller were obtained by means of Z-N method.Finally,some experiments were carried out on DK-1200 gantry-type machine tools with travelling bridge.The results show that PID controller has a satisfactory performance.

关 键 词：双驱动 动态不同步误差 PID补偿 稳定边界法 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]