高速数控冲床X-Y平台的鲁棒内模控制  

Internal Model Control for X-Y table of High-speed NC Machine Tool

作　　者：时丽丽[1] 王钦若[1] 张慧[1] 

机构地区：[1]广东工业大学自动化学院,广州510006

出　　处：《组合机床与自动化加工技术》2011年第2期62-65,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：粤港关键领域重点突破项目(2004A104030219)

摘　　要：现代板材加工数控冲床具有精度要求高、高速度、高加速度等特点,冲床X-Y平台的运动受负载扰动、非线性振动和摩擦等因素的影响是一个典型的非线性系统。文章以伺服系统和数控冲床X-Y平台为控制对象,研究了平台的传动机构和运动特性。运用机理建模的方法,建立了对象的数学模型,同时给出一种内模控制器的设计方法及其鲁棒性设计。仿真和实验结果表明,此控制方法具有良好的跟踪性能和抗干扰性能。The modern sheet metal processing NC machine tool possess features as high precision,high speed and high acceleration.The movement of the X-Y table is a typical nonlinear system for the influence of load disturbance,nonlinear vibration and friction.In this paper,the system＇s mathematical model including the servo system and the X-Y table system are presented and researched.It also gives the design method of Internal model control and its robust design.The simulation and experiment results prove that the control strategy have good tracking performance and disturbance rejection performance.

关 键 词：数控冲床 X-Y平台 数学模型 内模控制 

分 类 号：TH16[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]