Automatic laser welding arm

Abstract

The invention discloses an automatic laser welding arm and relates to the technical field of laser welding arms. According to the automatic laser welding arm, a laser welding head is connected to a supporting arm by adopting a welding oscillation mechanism, protection gas injecting heads are connected to the supporting arm through oscillation mechanisms correspondingly, and thus, when the laser welding head performs welding, a controller controls the welding oscillation mechanism to drive the laser welding head to oscillate in the weld joint width direction in a reciprocating mode; and meanwhile, the controller further controls the laser welding head to be driven by the oscillation mechanisms to make oscillation movement in the welding feeding direction of the laser welding head, in this way, the welding uniformity can be improved, although a weld joint is large, the position where the weld joint is located can be heated effectively and uniformly, the hot melting uniformity is improved, the welding reliability and stability are guaranteed, the welding uniformity is improved, the problem that only the welding power is improved, the center of the welding head is overheated and excessively melted, and cracks are prone to occurring in the weld joint connecting position on the contrary is solved, and the welding fastness is improved.

Description

technical field [0001] The invention relates to the technical field of laser welding arms, in particular to an automatic laser welding arm. Background technique [0002] Laser welding is the use of high-energy laser pulses to locally heat the material in a small area. The energy of the laser radiation diffuses into the interior of the material through heat conduction, and the material is melted to form a specific molten pool to achieve the purpose of welding. When performing laser welding It is necessary to utilize the welding arm, which can effectively weld the workpiece effectively. [0003] However, when the current welding arm is welding the workpiece, especially when the weld seam is wide, it is difficult for ordinary power welding equipment to perform effective welding, and if only the welding power is increased, then for large weld seams It is easy to cause local overheating and unreliable edge welding fusion, resulting in cracks in the edge welding, which makes it d...

AI Technical Summary

Problems solved by technology

[0003] However, when the current welding arm is welding the workpiece, especially when the weld seam is wide, it is difficult for ordinary power welding equipment to perform effective welding. It is easy to cause local overheating and unreliable edge welding fusion, resulting in cracks in the edge welding, which is difficult to meet the reliability and safety of welding

Moreover, during long-term use of the welding arm, it is easy to cause dust, and the dust enters the welding arm and causes damage, which affects the life of the welding arm

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