机床热变形误差实时补偿技术  

REAL TIME COMPENSATION FOR THERMALLY INDUCED ERRORS OF MACHINE TOOLS

作　　者：李书和[1] 杨世民[1] 张奕群[1] 张国雄[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院

出　　处：《天津大学学报》1998年第6期810-814,共5页Journal of Tianjin University(Science and Technology)

摘　　要：研究了通过实时补偿热误差提高数控机床加工精度的方法．采用一维球列加快和简化了热误差的测量．利用多元线性回归方法建立了热误差与温度的数学模型．在外部微机的帮助下，可在加工过程中实时补偿热误差．切削实验表明补偿效果良好．This paper is concerned with enhancing the accuracy of a machine tool through compensating thermal errors in real time.The 1 D ball array is used to accelerate and simplify the thermal error measurement.The model of thermal error and temperature field is developed by multi varivant regression analysis technique.With the aid of an external PC,the error can be compensated in real time.The cutting test shows that the effect of compensation is satisfactory.

关 键 词：数控机床 热误差 补偿 机床 热变形 实时补偿 

分 类 号：TG502.15[金属学及工艺—金属切削加工及机床] TG659.021