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Laser welding system and method

A technology of laser welding and laser devices, applied in the field of mechanical processing, to achieve the effect of ensuring welding reliability and improving production efficiency

Active Publication Date: 2017-01-04
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a laser welding system and method to solve the problems of upper and lower wrong sides, front and rear wrong sides, and seam flares in the existing laser welding process of the thin plate workpiece to be welded. Fast and reliable edge alignment, improving laser welding production efficiency

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Embodiment Construction

[0041] Preferred embodiments of the present invention are described below, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0042] The laser welding system provided by the embodiment of the present invention is generally as follows Figure 6 As shown in , it includes a laser device 9 , a workpiece positioning device, a servo mechanism, a visual seam optical detection device 10 , and a welding shielding gas channel 7 .

[0043] The laser device 9 is used for welding the first workpiece 1 and the second workpiece 2 . The laser device 9 can be fixed on the fixed plate 12 and driven by the servo motor 11 to move parallelly or vertically above the welding seam along the guide rail 13 relative to the welding seam. The laser device 9 includes a laser head and a focusing lens arranged in front of the laser head.

[0044] The workpiece positio...

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Abstract

The invention provides a laser welding system which comprises a laser device, a workpiece positioning device and a servo mechanism. The laser device is used for welding a first workpiece and a second workpiece. The workpiece positioning device comprises a positioning block used for conducting rough positioning on the positions of the first workpiece and the second workpiece, and a pressing assembly used for pressing the first workpiece and the second workpiece. The servo mechanism is used for conducting precise positioning on the first workpiece and the second workpiece and controlling the laser device and the workpiece positioning device to act. The invention further provides a corresponding laser welding method on the other hand. By means of the above laser welding system and method, the production efficiency can be obviously improved, full-automatic welding is achieved, the laser welding system and method are suitable for various large-scale application, and meanwhile the welding reliability can be ensured.

Description

technical field [0001] The invention relates to a laser welding system and method, belonging to the technical field of mechanical processing. Background technique [0002] In the existing laser welding process, there are problems such as misalignment, poor reliability, instability, and low efficiency between the workpieces to be welded, especially the "butt joints" between thin-plate workpieces, which limit the application of laser welding methods in thin-plate welding. application. In the actual production and application of thin plate welding, argon arc welding and plasma welding are usually used. Compared with laser welding, there are problems such as large heat-affected zone and poor appearance of weld seam, especially in some products with high appearance requirements. There are obvious disadvantages. Therefore, how to achieve fast and reliable butt seam is a technical difficulty that needs to be overcome in the practical application of thin plate laser welding. Comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/02B23K26/24B23K26/70
CPCB23K26/02B23K26/24B23K26/702
Inventor 范永欣赵前进龙江熊传林闵生
Owner GREE ELECTRIC APPLIANCES INC
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