High-power laser welding system and method based on high-speed scanning galvanometer

A laser welding and high-speed scanning technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of aluminum alloy welding explosion points, welding cracks, etc., and achieve stable welding width, increase contact area, and shape regularity. Effect

Pending Publication Date: 2018-01-16
SUZHOU QUICK LASER TECH
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  • Claims
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Problems solved by technology

[0004] One of the main purposes of the present invention is to provide a high-power laser welding system based on a high-speed scanning galvanometer, which can solve the problems of aluminum alloy welding explosion points, pores and welding cracks, and obtain high-strength aluminum alloy welds

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  • High-power laser welding system and method based on high-speed scanning galvanometer

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Embodiment

[0037] Please refer to Figure 1-Figure 2 , this embodiment is a high-power laser welding system based on a high-speed scanning galvanometer, which includes a manipulator (not shown in the figure), a laser welding mechanism 1 fixed at the movable end of the manipulator, and a high-position shielding air knife located below the laser welding mechanism 1 2. The low shielding gas knife 3 located below the high shielding gas knife 2 and above the position to be welded and the gas shielding device 4 blowing from both sides of the position to be welded.

[0038] The laser welding mechanism 1 includes a laser 11, a collimating mirror 14, a 45° total reflection mirror 15, a focusing mirror 13 moving along the direction of the laser beam, an X-axis scanning galvanometer 16, and a Y-axis scanning galvanometer 17 according to the beam transmission direction. 1. A Z-axis driving mechanism 18 and a control device 19 for driving the focusing mirror 13 to move. The control device 19 is elect...

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Abstract

The invention discloses a high-power laser welding system and method based on a high-speed scanning galvanometer. The system comprises a mechanical hand, a laser welding mechanism fixed to the movableend of the mechanical hand, a high-order shielding gas cutter located below the laser welding mechanism, a low-order shielding gas cutter located below the high-order shielding gas cutter and above the to-be-welded position, and a gas shielding device for blowing gas to the two sides of the to-be-welded position, and the laser welding mechanism comprises a laser with the transmitting power being5 KW or more, a collimating mirror, a 45-degree holophote, a focus lens moving in the laser beam direction, an X-axis scanning galvanometer, a Y-axis scanning galvanometer, a Z-axis driving mechanismfor driving the focus lens to move and a control device; the control device is electrically connected with the laser, the X-axis scanning galvanometer, the Y-axis scanning galvanometer and the Z-axisdriving mechanism, and the focal length of the focus lens is 300 mm or larger. The problems of aluminum alloy welding burst points, air holes, welding cracks and the like can be solved, and aluminum alloy welding lines with the high strength, deep welding penetration and stable welding width are obtained.

Description

【Technical field】 [0001] The invention relates to a welding system, in particular to a high-power laser welding system based on a high-speed scanning galvanometer and a welding method thereof. 【Background technique】 [0002] With the continuous implementation of various plans and policies related to the development of the new energy vehicle industry in the "13th Five-Year Plan", the spring breeze of market-oriented development of electric vehicles is coming. As one of the three core technologies of new energy vehicles, batteries determine the reliability and safety of electric vehicles to a certain extent. The aluminum alloy battery module shell part is an important support for the power battery, and its welding position has high strength requirements. The battery module shell components are generally made of five-series or six-series high-strength aluminum alloys, which have strong chemical activity and are easy to form oxide films on the surface, and their melting point i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/21B23K26/14B23K26/082
Inventor 吕贤良顾恩泽
Owner SUZHOU QUICK LASER TECH
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