X-Y数控精密工作台进给伺服系统摩擦误差的分析  

Friction Error Analysis Servo System on X-Y Numerical-control Table Work

作　　者：王文深[1] 

机构地区：[1]浙江工贸职业技术学院汽机系,浙江温州325003

出　　处：《新技术新工艺》2008年第5期47-49,共3页New Technology & New Process

基　　金：浙江省教育厅研究项目资助(项目号:20061613)

摘　　要：针对一个具体的X-Y数控精密工作台,建立了一种考虑摩擦影响的进给伺服系统数学模型。工作台中的摩擦力是借助二维混合摩擦模型来预测。通过MATLAB仿真模拟与采用球杆仪测量结果比较,分析了工作台在不同工况下做圆运动换象限时误差轨迹出现的尖峰突起现象,进而得到了进给速度及进给半径对摩擦所造成的轮廓误差产生影响的结论。In view of a specific X-Y numerical-control work table,the servo system mathematical model is established considering frictional influence.The table's friction force is forecasted through the two dimensional mixed friction model.Through MATLAB simulation and the actual measurement results by ball bar meter,the text analyzes the erroneous phenomenon which the peak break out when doing a circular movement from another quadrant to quadrant in different operating mode,and therefore the outline error influence by Feed Rate and Feed Radius are obtained.

关 键 词：伺服系统 X—Y工作台 数学模型 摩擦误差 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]