Laser welding method for polyhedral structure

A polyhedral structure, laser welding technology, used in laser welding equipment, welding equipment, metal processing equipment and other directions, can solve the problems of low welding efficiency, affecting the quality of welding seam, longer welding time, etc., to achieve the effect of high welding efficiency

Inactive Publication Date: 2021-05-25
GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such a laser welding method makes the entire welding time longer, resulting in lower welding efficiency; at the same time, because the welding head needs to turn on and off the laser output more frequently, a sudden change in thermal influence will occur at the welding position, thereby affecting the quality of the weld seam

Method used

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  • Laser welding method for polyhedral structure
  • Laser welding method for polyhedral structure
  • Laser welding method for polyhedral structure

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. The technical solutions of the various embodiments of the present invention can be combined with each other, but it should be based on the realization of those skilled in the art.

[0034] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right" etc. are based on those shown in the accompanying drawings. Orientation or positional relationship is only for the convenience of describing the present...

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Abstract

The invention discloses a laser welding method for a polyhedral structure. A joint of any two connected to-be-welded connecting surfaces of the polyhedral structure forms a to-be-welded gap, a plurality of sections of to-be-welded gaps are connected to form a welding seam track, and a connecting area of the two connected sections of to-be-welded gaps is a transition welding area. The laser welding method comprises the steps that when welding is conducted to a starting point of the transition welding area, the polyhedral structure rotates around the rotation axis, meanwhile, a welding head correspondingly moves along with rotation of the polyhedral structure, and follow-up is that the welding head moves along with the movement track of the transition welding area; when the welding head moves to the end point of the transition welding area, the to-be-welded gaps to be welded are just located at the horizontal position or the vertical position, and the polyhedral structure stops rotating; and in the moving process of the welding head, laser of the welding head is continuously output. By the adoption of the laser welding method of the polyhedral structure, continuous light emitting welding can be achieved, so that the welding efficiency is improved, and the quality of welding seams is improved.

Description

technical field [0001] The invention relates to the technical field of laser welding, in particular to a laser welding method of a polyhedron structure. Background technique [0002] At present, the laser welding of the polyhedral structure usually needs to turn the polyhedron several times, and the laser welding needs to be interrupted during the turning process, for example, the gap between the shell of the aluminum shell battery and the side of the positive and negative cover plates is welded by laser welding. During the process, the aluminum shell battery needs to be turned over at least three times, and the laser welding operation needs to be interrupted at least three times. Such a laser welding method makes the whole welding time longer, so that the welding efficiency is lower; at the same time, because the welding head needs to turn on and off the laser output more frequently, a sudden change of thermal influence will occur at the welding position, thereby affecting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/21B23K26/08B23K26/70
CPCB23K26/21B23K26/08B23K26/70
Inventor 王林周伟华周俊杰钟小兰
Owner GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD
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