A kind of all-position laser welding system and welding method

Abstract

The invention belongs to the technical field of laser welding, and in particular relates to an all-position laser welding system and a welding method, comprising a control system connected with a laser welding head, a tooling platform for carrying welding parts, and a laser transmitter for providing welding energy for the laser welding head ; The incident end is installed on the rotating part of the rotating disk. By setting the incident end on the rotating part of the rotating disk, the laser welding head can be driven by the rotating disk, and when the laser beam is emitted, the laser beam emitted by the laser welding head can rotate ±450 degrees around the rotation axis of the rotating disk , to realize all-position butt welding of thin-walled tubes with a diameter of 5-12 mm; the present invention installs the rotary disk on a position that can drive the laser welding head to perform linear motion on the x-axis, y-axis and z-axis of the three-dimensional coordinate system The moving assembly can adjust the position of the laser welding head, so that the rotation axis of the laser welding head can be on the same line as the axis of the welded pipe.

Description

technical field [0001] The invention belongs to the technical field of laser welding, and in particular relates to an all-position laser welding system and a welding method. Background technique [0002] With the development of my country's aerospace, nuclear power and pipeline industries, all-position welding technology has been more and more widely used. As a high-energy beam welding method, laser self-fusion welding technology has gradually begun to be widely promoted and used in industry; for all-position butt welding of pipelines and tube sheets, compared with traditional manual electrode arc welding and MIG welding, etc. Laser welding technology can further optimize the welding process due to its advantages of small welding heat input, fast welding speed and small deformation of the weld seam, which is conducive to further promoting the application of laser welding technology in all-position welding and realizing new processes and new technologies. Change of method. ...

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Problems solved by technology

[0003] Through the search, it was found that the Chinese patent with the notification number CN109514086B proposed a continuous-pipe laser welding process in all positions, which optimized the butt welding welding process of continuous petroleum pipelines, but the welding process provided by it is only suitable for large-diameter and thick-walled pipes. Welding parts; and the high-temperature alloy pipes used to transport dyes or exhaust in aerospace and nuclear power are usually small in diameter and thin in pipe walls. It is difficult to weld pipes with small diameters and thin pipe walls using the above-mentioned laser welding process

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