Z-direction pressing laser welding tooling for battery tray

Abstract

The invention provides a Z-direction pressing laser welding tooling for a battery tray, which comprises a main positioning and pressing device for pressing and positioning a product piece and an auxiliary pressing device for automatically compensating and pressing the product piece; the main positioning and pressing device comprises a main frame, and a plurality of sets of fixed pressing mechanisms for pressing the product piece and a plurality of sets of follow-up pressing mechanisms for pressing an auxiliary frame are arranged on the main frame; the auxiliary pressing device is provided withthe auxiliary frame, and the outline of the auxiliary frame is matched with the outline of the product piece; a plurality of sets of automatic compensation pressing mechanisms are arranged on the auxiliary frame; and a plurality of single-guide-rod pressing air cylinders are distributed on the periphery of the auxiliary frame. Compared with the prior art, the invention has the following advantages that 1, the problem that the consistency of welding gaps cannot be guaranteed due to the fact that a pressing arm of a traditional pressing device is opened in the welding process is solved throughZ-direction automatic compensation, and the first-pass yield of products is increased; 2, the ventilation and electrification functions of an air cylinder of a Z-direction clamping automatic compensation device are realized through a quick insertion mechanism; and 3, the follow-up opening of the air cylinder is reduced, so that the welding beat is improved.

Description

technical field [0001] The invention relates to a welding fixture, in particular to a Z-direction pressing laser welding tool for a battery tray. Background technique [0002] The power source of new energy vehicles is batteries, and the fixed placement of batteries is inseparable from the role of battery trays. Therefore, manufacturing and processing excellent battery trays is a prerequisite for ensuring that batteries provide power for vehicles in an orderly manner. The battery tray is welded by many structural parts, and the welding process is easy to cause product deformation, so controlling the welding deformation of the battery tray will determine the final quality of the product. The design of welding tooling is the key factor to control welding deformation. At present, the mass-produced battery tray laser welding tool is compressed by cylinders around the battery tray to ensure a tight fit at the weld. In the actual welding process, every time the welding torch rea...

AI Technical Summary

Problems solved by technology

However, during the laser welding process, the welding seam needs to be closely matched, and no gap exceeding 0.3mm can appear. In the laser welding process, the existing tooling needs to open the pressing arm every time it passes through the pressing point, which will easily cause the welding seam to not fit well. Tight, resulting in large gaps, welding defects are prone to occur during welding, which affects product quality; in addition, each welding process needs to open and close the pressing arm, and there are a large number of cylinders, and it takes a lot of time to open these cylinders one by one. Problems affecting productivity

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