多线切割机控制系统的研制  

Development of Control System for Multi-wire Saw

作　　者：蒋近[1,2] 戴瑜兴[2] 彭思齐[2] 

机构地区：[1]湘潭大学,湘潭411105 [2]湖南大学,长沙410082

出　　处：《中国机械工程》2010年第15期1780-1784,共5页China Mechanical Engineering

基　　金：湖南省普通高等学校重点实验室(湘潭大学)资助项目

摘　　要：分析了多线切割机的总体结构,说明了它的工作原理,给出了其控制系统的硬件和软件实现框图。重点研究了多线切割机中张力控制和多电机同步控制两个难点问题,设计了一种机电一体化的张力控制方案,使用伺服电机代替重锤施加张力,通过伺服电机的绝对值编码器反馈实时位置,调整收放线电机的速度,保证切割线的张力稳定。分析了多电机的控制结构,建立了多电机同步的运动模型,采用基于虚拟主轴和无模型自适应控制来实现多电机的同步运动。样机实验结果表明张力控制稳定,多电机同步控制性好,证明所采用方法正确可行。The overall structure of multi-wire saw was analyzed and its work principle was explained. The realization diagram of hardware and software was given for control system. Two difficult problems which were tension control and multi-motor synchronization were mainly studied. A electromechanical integration of tension control scheme was designed. Tension was exerted by means of a servo motor instead of a heavy hammer. The real-time position was feedbacked by absolute value encoder of the servo motor. The speed of supply/collect spool motor was adjusted for keepping wire tension stable. The multi-motor control structure was analyzed. A multi-motor synchronization motion model was established. Synchronization motion was achieved by using virtual main axis and model-free adaptive control. Experimental results indicate that multi-motor synchronization control is good and tension control is stable. It shows that the proposed scheme is correct and feasible.

关 键 词：硅材料 多线切割机 张力控制 多电机同步控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]