Laser splice welding system for high-strength steel structure thin plates

Abstract

The invention provides a laser splice welding system for high-strength steel structure thin plates. The laser splice welding system comprises a welding portal frame and the like. A fixed pressing device, a movable pressing device and a welding platform are all located below the welding portal frame. The fixed pressing device and the movable pressing device are located on the two sides of the workpiece welding platform correspondingly. A transversely-moving trolley is arranged on the welding portal frame, a robot level laser composite welding system is fixed to the position below the transversely-moving trolley, and a workpiece transferring device is located on the side faces of a front welding material frame and a rear welding material frame. The welding portal frame is sleeved with a laser protective door, and the front welding material frame and the rear welding material frame are located below one side of the fixed pressing device. According to the laser splice welding system for the high-strength steel structure thin plates, the diversified welding methods such as self-fusible welding, laser filler wire welding and laser electric-arc hybrid welding can be achieved, automatic locating can be conducted before welding; and in the welding process, real-time tracing of welding joints can be achieved, the welding technological parameters are adjusted in real time according to slope gap and misalignment changing, and self-adaptation filling of welding wires is achieved. According to the laser splice welding system, teaching programming is easy, and operating is convenient.

Description

technical field [0001] The invention relates to the technical field of high-precision laser welding manufacturing, in particular to a thin-plate laser tailor welding system for high-strength steel structural parts. Background technique [0002] Due to its high energy density, low heat input, small welding deformation, high welding efficiency and good welding quality, laser welding has been widely used and promoted in important fields of the national economy such as automobiles, shipbuilding, aviation and aerospace, and nuclear power. [0003] The welding seam of marine structural parts is long, and the workpiece is a thin-walled member. The current conventional welding method is arc welding. Arc welding needs to process grooves and fill a large amount of welding wire. Due to the large heat input, welding deformation after welding The amount of welding is large, and the workload of pyrotechnic correction after welding is large, the weld structure is coarsened, and the welding...

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Problems solved by technology

But the system does not have seam tracking, nor does it have adaptive welding function

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