激光焊缝跟踪系统在汽车薄板机器人GTAW中的应用

Application of laser seam tracking system in robotic welding of stainless steel thin plate

根据不锈钢薄板卷边对接焊缝的特点,设计了一种具有可靠性高、能够在工业现场长期应用的机器人GTAW焊接跟踪系统。系统采用激光传感器进行初始焊位识别及焊缝跟踪,有效地调节焊枪位置的变化,使焊枪始终沿着焊缝中心前进,从而大大提高了焊接质量。试验结果表明,所设计的机器人焊缝跟踪系统能够满足焊缝跟踪的精度要求,具有实际应用价值。

A high reliable laser seam tracking system for robotic welding was proposed and applied to the butt welding in the lip of stainless steel thin plate.Laser sensor is used effectively to adjust the torch position,and make the torch move forward along the seam center,which can greatly improve the welding quality.Finally the practical experiments were demonstrated that the developed system can meet the seam tracking accuracy requirements and engineering application.