Hydrogen energy automobile bipolar plate ultrahigh-speed precision welding process and welding clamp thereof

Abstract

The invention discloses a hydrogen energy automobile bipolar plate ultrahigh-speed precision welding process and a welding clamp thereof, and belongs to the field of hydrogen energy automobile production. A bipolar plate to be welded is included and installed on the welding clamp, the bipolar plate is moved to the mechanical welding position through a high-speed moving platform, characteristic information preset on the bipolar plate is grabbed after photographing and compared with characteristics in a photographing template, a laser beam passes through an axial lens of a galvanometer, a second shaft of the galvanometer drives the laser beam to move to the welding track end point from the welding track starting point, a complete welding line is finally formed along with movement of the galvanometer, an upper single-pole plate and a lower single-pole plate are welded together, and welding of the bipolar plate is achieved. When the process is used for welding the bipolar plate, the welding process and the welding line width are extremely stable, obvious fluctuation is avoided, the pseudo soldering problem is not likely to happen, the welding strength is high, the welding line is flat, the overcurrent capacity of the welding line is guaranteed, and the product performance of a hydrogen fuel cell is greatly improved.

Description

technical field [0001] The invention belongs to the field of hydrogen energy vehicle production, and in particular relates to a hydrogen energy vehicle bipolar plate ultra-high-speed precision welding process method and a welding fixture thereof. Background technique [0002] In the field of hydrogen energy vehicle production, the fuel cell engine is the power source of hydrogen energy vehicles, and the fuel cell engine is a power generation device that directly converts hydrogen and oxygen into electrical energy through electrochemical reactions. Its process does not involve combustion, has no mechanical loss, has a high energy conversion rate, and produces only electricity, heat and water. It runs smoothly and has low noise. It is called "the ultimate environmental protection engine". [0003] A fuel cell stack is a stack of fuel cells stacked in series. A single fuel cell consists of a membrane electrode (MEA), a gas permeable membrane (GDL), an anode plate and a cathode...

AI Technical Summary

Problems solved by technology

[0007]The problem to be solved by the present invention is to provide a hydrogen energy vehicle that can effectively reduce the degree of welding deformation and welding defects, ensure welding quality, and improve the yield of bipolar plates Ultra-high-speed precision welding process of bipolar plate and its welding fixture

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