基于电子齿轮箱的蜗杆砂轮磨齿机几何误差补偿解耦研究  

Geometric error compensation decoupling of CNC worm wheel gear grinding machine based on electronic gearbox

作　　者：韩江[1] 张魁榜[1] 杨清艳[1] 夏链[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2015年第9期1153-1158,共6页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51275147);国家重大科技专项资助项目(2012ZX04001021)

摘　　要：文章依据蜗杆砂轮磨齿机加工原理,用齐次坐标变换的方法建立了各运动副坐标系间的变换矩阵;基于小误差补偿运动假设,分析了误差运动和补偿运动间的相互关系,对磨齿机各运动副的位置及方向误差补偿运动进行了解耦;根据蜗杆砂轮磨齿机各轴的运动特点,进一步就基于电子齿轮箱联动关系的各运动轴补偿进行了解耦;根据解耦推导出蜗杆砂轮磨齿机各运动轴的误差补偿值,在自主研发的蜗杆砂轮磨齿机数控系统平台上进行误差补偿实验,验证了误差补偿算法,提高了蜗杆砂轮磨齿机磨削精度。According to the worm wheel gear grinding theory ,transformation matrix between the posi‐tion/orientation joints was established by using coordinate transformation method . And the error compensation values of the grinding position and direction were decoupled based on the rigid body ki‐nematics with a small error assumption ,and the relationship between error compensation and move‐ment characteristic was analyzed .Then the motion compensation values of each axis were decoupled by considering the motion characteristics of the electronic gearbox movement .And the position and o‐rientation compensation values were obtained with the model .Finally ,the error compensation algo‐rithm was verified based on the CNC system of the worm wheel gear grinding platform ,and the re‐sults show that the grinding precision of the machine was improved .

关 键 词：数控蜗杆砂轮磨齿机 几何误差模型 误差补偿解耦 电子齿轮箱 

分 类 号：TG596[金属学及工艺—金属切削加工及机床]