机器人搅拌摩擦点焊系统设计

搅拌摩擦点焊是一种新型固相焊接技术,机器人焊接是焊接制造业的主要发展方向,将搅拌摩擦点焊与机器人相结合,通过加工相应的焊接装置以及增加机器人的承载能力,设计完成机器人搅拌摩擦点焊装置,实现对搅拌针的精确控制。机器人搅拌摩擦点焊的控制系统是将机器人控制系统和搅拌摩擦点焊控制系统结合,在焊接过程中二者既能独立运行,又相互联系,实现搅拌摩擦点焊装置与机器人协同工作模式,从而实现无间断循环的焊接过程,提高焊接效率。通过实验对比分析机器人搅拌摩擦点焊与传统龙门式搅拌摩擦点焊焊接的工件表面成形和焊点力学性能,结果表明:机器人搅拌摩擦点焊系统实现了复杂结构工件的焊接,表面成形良好,无明显的焊接缺陷,且焊点结合强度与龙门式相当,机器人搅拌摩擦点焊系统具有良好的焊接性能。

Designs of friction stir spot welding system for robot

Automatic welding is an essential development direction of the manufacturing industry,friction stir spot welding (FSSW) for robot is a new welding process which combining with friction stir spot welding and welding robot.The friction stir spot welding system for robot is designed by changing the corresponding welding device and increasing the carrying capacity of the welding robot.The welding system is composed by two parts:friction stir spot welding device and the welding robot,therefore,there are two control systems,the friction stir spot welding control system and the welding robot control system which can be operated independently,these two control systems are intercommunicated.Based on that work,this welding system can work without breaking,the new working mode can increase the working efficiency significantly.The function of this system is verified by the experiments,the surface forming and the welding performance are both good.The comparative analysis shows that the friction stir welding system of the robot realizes the welding of the complex work-piece,the surface forming effect is good,no obvious welding defects,the weld strength of friction stir spot welding system for robot is equivalent to that of the Gantry model.The friction stir spot welding system for robot has good welding performance.