Laser double-wire electric arc hybrid welding system with adjustable heat source and variable-gap thick plate component welding process

Abstract

The invention discloses a laser double-wire electric arc hybrid welding system with an adjustable heat source and a variable-gap thick plate component welding process. The hybrid welding system comprises a laser, a double-wire electric arc welding system and a welding robot. The welding robot comprises a robot body, a robot tail end connecting piece and a welding assembly. The welding assembly is fixedly connected to the tail end of the welding robot through the robot tail end connecting piece, the welding assembly comprises a laser welding head and a double-wire welding gun, and the laser welding head and the double-wire welding gun can form a heat source arrangement mode of laser guidance and series connection or parallel connection of double wires and laser. The self-adaptive welding device can adapt to self-adaptive welding of different welding seam assembling gaps, the welding mode that laser is guided in the front and double wires are connected with laser in series or in parallel is adopted, the preheating effect of the laser on a workpiece can be utilized, an arc welding electrode is effectively protected, the welding seam quality is improved, and the workpiece welding deformation amount is reduced.

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