激光焊机焊接对中伺服控制系统  

Welding centering servo-control system of laser welder

作　　者：董砚[1] 孟庆江[1] 王睿[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》2011年第9期30-32,84,共4页Electric Welding Machine

基　　金：河北省科技支撑计划项目(07212114D)

摘　　要：介绍了薄板生产线LW21L激光焊机对中伺服系统的工艺及其控制系统。该系统采用西门子公司S7-400和PROFIBUS-3DP通信技术,实现了激光焊在连续薄板生产线过程中的自动控制,提出了一种对中伺服控制方法,即自动定位控制。焊机中还用到了相对位置定位控制和绝对位置定位控制,相对位置定位控制主要应用于维护模式中,绝对位置定位控制主要应用于自动和半自动控制系统的自动执行焊接过程中,有效克服了激光焊机在焊接对中过程中产生的误差,大大提高了激光焊机的焊接准确度。该系统还实现了焊接的自动化及故障处理功能。Technological process of servo system and control system for LW21L type laser welder in Cold rolled sheet production line are, introduced in this paper.The system is structured of S7-400 and PROFIBUS-3DP communication mode,achieving automatic control through the cold wiled continuous sheet production line, a method of servo control is presented, called automatic positioning control.Welder also used the relative position and absolute l^ation in the positioning control,relative position of the positioning control is mainly used in maintaining mode,the absolute position of positioning control is mainly used in automatic and semi-automatic control system,it may automatically perform the welding process ,and effectively overcome the laser welder error where generated in the welding process ,the accuracy of the laser welder is greatly improved.The automation and fault treatment function of welding process are realized in the system.

关 键 词：激光焊机 对中 PLC 控制系统 

分 类 号：TG456.7[金属学及工艺—焊接]