嵌入式伺服压机系统高精度位置控制的研究  

Embedded Servo Press System High Precision Position Control Research

作　　者：刘炯钟 林敏[1] 郭斌[1,2] 

机构地区：[1]中国计量学院计量测试工程学院,杭州310018 [2]杭州沃镭科技有限公司,杭州310019

出　　处：《组合机床与自动化加工技术》2015年第4期91-93,97,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家质检总局公益性行业科研专项项目(201310284);浙江省公益性技术应用研究计划(2014C31105)

摘　　要：嵌入式伺服压机要求定位压桩过程不可来回调整位置,若压桩全过程采用全闭环控制方式,应用程序实时性严重影响定位精度。提出了一种基于ARM11处理器的伺服压机高精度位置控制方法,该方法压桩前阶段采用全闭环控制以克服机械传动误差,压桩过程应用定时计数器中断实现半闭环控制来提高控制实时性。实验表明,这种控制方式可实现一到两个脉冲的位置控制精度,且位置控制稳定,克服了应用程序实时性差、控制精度低的缺点,有效地提高了嵌入式伺服压机定位压桩精度,满足了汽车轴承等的定位压桩要求。Back and forth the requirements of embedded servo press installation process adjustment. If the piling process all adopts the fully closed loop control method,real-time of the application is seriously affect the location accuracy. The paper proposes a servo press high precision position control method based on ARM11 processor,the method is that before the press stage adopts full closed loop control to overcome the mechanical transmission error,and the press stage we use timing counter interrupt to achieve a half closed loop control to improve the real time control. Experiments showthat this control mode can realize one or two pulse position control accuracy,also repeatability and stable. The method solves the application＇s slowreal-time performance and lowcontrol precision. Effectively improve the embedded servo press positioning accuracy,meet the requirement of positioning piles.

关 键 词：伺服压机 位置控制 嵌入式系统 中断 定时计数器 

分 类 号：TH166[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]