基于激光跟踪仪的数控机床加工误差控制研究  

Research on machining error control of NC machine tool based on laser tracker

作　　者：唐永忠 唐亮[1] 叶家福[1] TANG Yongzhong;TANG Liang;YE Jiafu(Guilin University of Electronic Technology,Guilin Guangxi 541004,China)

机构地区：[1]桂林电子科技大学,广西桂林541004

出　　处：《激光杂志》2024年第9期213-217,共5页Laser Journal

基　　金：广西科技基地和人才专项(No.2022AC21107)。

摘　　要：数控机床使用时间延长,会使加工轨迹与实际轨迹轮廓之间偏离出现加工误差,同时存在加工效率差等缺陷,为了获得理想的数控机床加工效果,提出了基于激光跟踪仪的数控机床加工误差控制方法。首先采用激光跟踪仪确定数控机床加工轨迹,引入叉耦合控制器,计算数控机床加工过程中轨迹误差估计值,然后根据误差分配结果确定加工轨迹轮廓误差补偿控制量,并根据插补值进行数控机床加工控制,最后进行仿真测试,结果表明,本方法降低了数控机床加工误差,提升了数控机床加工精度,具有较高的实际应用价值。Prolonging the service time of CNC machine tools will lead to the deviation between the machining trajectory and the actual trajectory contour,and there are defects such as poor machining efficiency.In order to obtain the ideal machining effect of CNC machine tools,a control method of machining error of CNC machine tools based on laser tracker is proposed.Firstly,the laser tracker is used to determine the machining trajectory of CNC machine tools,and the cross-coupling controller is introduced to calculate the estimated trajectory error in the machining process of CNC machine tools.Then,the compensation control quantity of machining trajectory contour error is determined according to the error distribution result,and the machining control of CNC machine tools is carried out according to the interpolation value.Finally,the simulation test is carried out.The results show that this method reduces the machining error of CNC machine tools and improves the machining accuracy of CNC machine tools,which has high practical application value.

关 键 词：数控机床 多轴联动 加工精度 激光跟踪仪 仿真测试 

分 类 号：TN29[电子电信—物理电子学]