激光焊机高精度带钢对中控制系统设计  

High-precision centering control system design of laser welder

作　　者：孙鹤旭[1] 马子涵[1] 陈海永[1] 董砚[1] 

机构地区：[1]河北工业大学控制科学与工程学院,天津300130

出　　处：《电焊机》2013年第6期16-21,共6页Electric Welding Machine

基　　金：国家自然科学基金资助项目(61203275);天津市应用基础与前沿技术研究计划资助项目(11JCYBJC06500);河北省高等学校科学研究计划项目(Z2012016)

摘　　要：在冷轧生产线中,激光焊接用来焊接前带钢和尾带钢,从而实现连续生产。焊接前,前带钢和尾带钢的精确对中是决定焊接质量的一个重要步骤。在此提出一种高精度钢带对中伺服控制系统以实现带钢的精确对中控制方法。该对中控制系统以PLC为核心控制器,通过Profibus-DP总线连接分布式I/O控制子系统和Simodrive 611U伺服控制器。利用MTS磁致伸缩位移传感器采集钢带边缘的位置信号,并通过Profibus-DP总线反馈给PLC,用来计算带钢与生产线中心线的偏差。设计了驱动器控制伺服电机的控制程序,实现了钢带的精确对中,现场的测试结果令人满意。On cold-rolled production line,laser welding is used to weld the front and tail of strips in order to achieve continuous production.It is an important step to realize strips centering accurately prior to welding,which determines the quality of welding.The automatic high-precision servo control system for centralization of strip is presented in this paper.The control system compose of the Siemens S7-400 as controller,distributed I/O subsystems,Simodrive 611U and the Profibus-DP bus.The MTS Temposonics is used to mearsure position information of the strip＇s edge,then send to PLC for calculating the deviation between the strip＇s center line and the production line＇s.Then the program for controlling servo-motor by 611U is designed.Accurate centralization of strip is realized, and results are satisfactory.

关 键 词：激光焊机 对中控制 Simodrive 611U 伺服电机 

分 类 号：TG439.4[金属学及工艺—焊接]