【摘要】 为了消除热变形对机床加工性能的影响,提出一种热误差补偿的实现方法。介绍了热变形的数学模型,得到了热误差补偿算法;介绍了西门子840D数控系统HMI界面二次开发方法及流程,并给出了HMI程序生成参数加入到CNC指令的实现方式;最后实现了热误差补偿功能的嵌入,具有一定的实际工程价值。更多还原

【Abstract】 In order to eliminate the error of thermal deformation in the machine tools,a realization method of thermal error compensation was put forward. The mathematical model of the thermal deformation was introduced,and a thermal error compensation method was developed. Then the process of HMI secondary development of Siemens 840D CNC was discussed,and a way of transferring the parameters from the HMI to CNC commands was presented. The error compensation algorithm was successfully embedded in 840D CNC,which had some significant practical value.更多还原