波纹管自动焊接系统的研制

Development of automatic welding system of bellows

针对波纹管手工焊焊接过程中人工劳动强度高、生产效率低、废品率高的问题,研制了基于激光测量技术的波纹管自动焊接系统,上位机通过激光轮廓仪获得波纹管焊缝的径向坐标点,运动控制系统根据坐标点控制二维平台及回转平台运动。对焊缝跟踪精度和焊接质量进行了试验分析,结果表明,研制的波纹管自动焊接系统稳定可靠,焊枪跟踪焊缝径向的平均误差小于0.02 mm,焊缝接头外观美观、强度高、组织优化,满足波纹管自动化焊的要求。

In order to solve the problems such as high labor intensity,low productivity,and high reject rate of manual welding of bellows,automatic welding system was developed based on laser measurement technology.The shaft section of bellow is measured by laser profile meter.The radial coordinate and axial coordinate of weld is obtained by the host compute using data processing technology.The two-dimensional slipway and the turntable movement are controlled by the motion control system.The welding seam tracking accuracy and the welding quality were examined and analyzed.The experimental results show that the automatic welding system is stable and reliable,and the average radial and axial welding seam tracking accuracy is higher than 0.2 mm,the satisfying weld appearance can be achieved,strength and microstructure of the weld is better than that of the joint by the manual welding,and the requirement of automatic welding of bellows is achieved.