Method of and apparatus for welding workpiece with laser beams

Details Method of and apparatus for welding workpiece with laser beams Method of and apparatus for welding workpiece with laser beams

B - Operations, Transporting

23

K

B23K 26/00 (2006.01) B23K 26/067 (2006.01)

Patent

CA 2242930

A laser beam welding apparatus has a first laser oscillator for applying a laser beam to a right-hand automobile door, a second laser oscillator for applying a laser beam to a left-hand automobile door, and first through fourth laser beam path changing mechanisms for changing the laser beam path of the laser beam from the first laser oscillator in the event of a failure of the second laser oscillator, and changing the laser beam path of the laser beam from the second laser oscillator in the event of a failure of the first laser oscillator. Even when one of the laser beam oscillators fails to operate due to a malfunction, an overall welding line combined with the laser beam welding apparatus does not need to be shut down, and the laser beam welding apparatus can smoothly and efficiently weld the workpieces.

Dispositif de soudage au rayon laser possédant un premier oscillateur laser pour appliquer un rayon laser à la portière droite d'une automobile, un deuxième oscillateur laser pour appliquer un rayon laser à la portière gauche d'une automobile, et d'un jusqu'à quatre mécanismes de changement de la trajectoire du rayon laser pour modifier la trajectoire du rayon laser à partir du premier oscillateur laser en cas de défaillance du deuxième oscillateur laser, et pour modifier la trajectoire du rayon laser à partir du deuxième oscillateur laser en cas de défaillance du premier oscillateur laser. Même lorsque l'un des oscillateurs laser ne fonctionne pas à cause d'une anomalie, il n'est pas nécessaire d'arrêter l'ensemble d'une chaîne de soudage reliée à un dispositif de soudage au rayon laser, et le dispositif de soudage au rayon laser peut souder de manière ordonnée et efficiente les pièces à travailler.

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