Smoke exhaust type pressing fixture for laser welding plane welding

Abstract

The invention discloses a smoke exhaust type pressing fixture for laser welding plane welding. The smoke exhaust type pressing fixture comprises an installation assembly, a gas inlet, a smoke outlet,a laser inlet and a welding opening for making contact with and pressing a product; the gas inlet and the smoke outlet are located in the same direction and communicate with each other; the laser inlet and the welding opening for making contact with and pressing the product are also located in the same direction and communicate with each other; and a channel formed by the gas inlet and the smoke outlet as well as a channel formed by the laser inlet and the welding opening for making contact with and pressing the product vertically intersect. According to the smoke exhaust type pressing fixture, in order to avoid a series of problems and hidden dangers that the phenomenon that welding energy is gradually reduced from front to back occurs due to the fact that actual energy, acting on the welded product, of laser for laser welding is reduced by a large amount of retained smoke generated in the laser welding plane welding process, and avoid sparks generated when laser acts on the smoke, the effect that energy of a laser device in the laser welding process is sufficiently utilized is ensured, and the safe using environment and the service life of the laser equipment are ensured.

Description

technical field [0001] The invention relates to the technical field of laser welding and the technical field of welding accessories. Specifically, it shows a smoke-exhaust type compression fixture for laser welding plane welding. Background technique [0002] At present, laser welding is a widely used welding method. It is used in various fields due to its high efficiency, high welding strength and low noise. For example, new energy lithium-ion battery tab welding and BMS welding, etc., all use a The welding method of multiple points on the surface (the welding surface of the welding fixture target), but in the production process, the welding position of the fixture is not accurate and the product is not pressed tightly, resulting in false welding or virtual welding; at the same time, a large number of welding will be generated during the welding process. The smoke and dust stays, which causes the energy of the laser to act on the product to be weakened by the smoke and dust...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above technical problems, and to provide a smoke-exhaust type compression fixture for laser welding plane welding, so as to avoid inaccurate positioning of the welding position of the fixture and insufficient pressure of the product during the production process of laser welding plane welding Cause false welding or virtual welding, and a large amount of smoke and dust will be retained during the welding process, resulting in energy instability in which the energy of the laser acting on the product is weakened by the smoke and dust, and the laser energy passing through the smoke will cause the smoke and dust to deflagrate, ensuring Improve the stability and safety of the welding process

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