多线切割机线张力控制系统设计实现  

Design and Implement of Wire Tension Control System for Multi-wire Saw

作　　者：张义兵[1,2] 戴瑜兴[2,3] 袁巨龙[3] 熊万里[3] 

机构地区：[1]湘潭大学信息工程学院,湘潭411105 [2]湖南大学电气与信息工程学院,长沙410082 [3]湖南大学国家高效磨削工程技术研究中心,长沙410082

出　　处：《机械工程学报》2009年第5期295-300,共6页Journal of Mechanical Engineering

摘　　要：分析多线切割机张力控制机械原理,针对传统的线张力控制方式局限性,从运动学角度对放线系统数学模型的理论研究,探讨多线切割机走线过程中影响线张力的各种因素,提出一种机电一体化的张力控制系统方案,该方案用转矩电动机代替张力锤施加张力,并运用自适应逆算法设计智能控制器以降低多电动机系统速度同步系统的跟踪误差,极大地降低线张力波动的强度。设计并实现基于现场总线的张力控制系统硬件平台,XQ300A多线切割机产品测试结果证明该系统的可行性、可靠性,该控制方案不仅张力控制精度高、易于实现,而且具有断线故障率低、张力调整方便的优点。Based on the analysis of the mechanical structure principle of multi-wire saw, the wire-supplying system model is studied from a point of view of kinematics and factors that influence wire tension is investigated to overcome the deficiency in traditional multi-wire saw tension control system. A mechanical and electrical wire tension control scheme is proposed, in which torque motor is used to produce tension on wire instead of hammer, and intelligent controller is designed by using adaptive inverse algorithm to reduce the speed synchronization trace error of multi-motor system; The scheme reduces the wire vibration intensity greatly. The hardware platform of tension control system based on field bus is designed and realized. The test results of XQ300A multi-wire saw prove the feasibility and reliability of the system. The control scheme features high precision and easy realization of tension control, low wire-broken fault rate and convenient tensioning.

关 键 词：多线切割机 张力控制 自适应逆控制 伺服控制 现场总线 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]