Through sampling data analysis,it is found that the temperature of spindle motor,feed shaft motor,coupling and lead screw nut change sharply,but it is not related to the location of transmission parts and the deformation of structural parts.The temperature changes near the bearing seat of the transmission mechanism are very close to the mechanical deformation curve.So close to the main bearing part of the spindle shell,screw bearing seat is arranged at the middle part of each feed motor shaft temperature sensor,the environment temperature sensor is installed near the base for columns of machine tool;type 8 bus type numerical control system,HIO-1075 temperature acquisition card,embedded thermal offset compensation and slope compensation module developed by HNC,temperature changes in the relevant parts of the real-time monitoring,real-time compensation of thermal displacement error of the moving parts of machine.This function has been installed in many users and units,and has been approved by users.%通过采样数据分析发现,主轴电动机、进给轴电动机、联轴器和丝杠螺母处的温度变化剧烈,但与传动部件的定位、结构件的变形关联性不高,而传动机构轴承座附近的温度变化与机械变形曲线非常接近.所以在主轴外壳靠近主轴轴承部分,每个进给轴电动机端的丝杠轴承座中部安装温度传感器,在机床立柱底座附近安装环境温度传感器;在华中8型总线式数控系统中,插入华中数控开发的HIO-1075温度采集板卡、嵌入热偏置补偿和斜率补偿模块,通过实时监测相关部位的温度变化,对机床运动部件的热位移误差进行实时补偿.该功能已在多家用户单位批量装机使用,得到了用户的认可.
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