高性能数控激光切割机进给误差补偿方法研究  

Research on feed error compensation method for high performance CNC laser cutting machine

作　　者：刘睿 LIU Rui(School of Intelligent Manufacture,Guangdong Technology College,Zhaoqing Guangdong 526114,China)

机构地区：[1]广东理工学院智能制造学院,广东肇庆526114

出　　处：《激光杂志》2024年第6期259-264,共6页Laser Journal

基　　金：广东省教育厅科研项目(No.2018KTSCX275)。

摘　　要：数控激光切割机是现今制造工业应用范围较为广泛的大型设备,内部进给系统由于振动、偏斜现象的存在,使得进给误差无法避免,若是不对其进行补偿,会影响切割机的应用效果,故提出高性能数控激光切割机进给误差补偿方法研究。深入分析切割机进给误差来源,确定进给误差组成公式(定位误差+力变形误差),阐明定位误差与力变形误差的测量方式,获取同一时刻多个测量点的进给误差数据,利用加权平均计算最终需要补偿的进给误差,结合硬件设备与软件设备制定进给误差补偿程序,执行制定程序即可实现进给误差的有效补偿。实验数据显示:应用提出方法获得的进给误差补偿结果与预期进给位置一致,进给误差补偿响应时间最小值为0.1 s,充分证实了提出方法进给误差补偿性能更强。CNC laser cutting machine is a large-scale equipment widely used in the manufacturing industry today.Due to the existence of vibration and deviation phenomena in the internal feed system,feed error cannot be avoided.If it is not compensated,it will affect the application effect of the cutting machine.Therefore,a high-performance CNC laser cutting machine feed error compensation method research is proposed.Thoroughly analyze the sources of feed er-rors in the cutting machine,determine the composition formula of feed errors(positioning error+force deformation er-ror),clarify the measurement method of positioning error and force deformation error,obtain feed error data from mul-tiple measurement points at the same time,use weighted average to calculate the final feed error to be compensated,and develop a feed error compensation program combining hardware and software equipment,By executing the estab-lished program,effective compensation for feed errors can be achieved.The experimental data shows that the feed error compensation results obtained by the proposed method are consistent with the expected feed position,and the minimum response time for feed error compensation is 0.1 seconds,fully confirming that the proposed method has stronger feed error compensation performance.

关 键 词：进给误差 数控激光切割机 误差补偿 高性能 进给系统 补偿精度 

分 类 号：TN249[电子电信—物理电子学]