Aluminum alloy CMT arc welding rotary table jig

Abstract

The invention belongs to the technical field of welding devices for automobile parts, and provides an aluminum alloy CMT arc welding rotary table jig. The aluminum alloy CMT arc welding rotary table jig comprises a jig body, the jig body is provided with a plurality of aluminum alloy frame plates, and the aluminum alloy frame plates are mutually spliced to form a storage battery box aluminum alloyproduct. Arc welding passes are arranged at the positions where the four corners of the aluminum alloy frame plates are connected, a plurality of press pliers mechanisms are arranged around the jig body, and supporting surface water cooling plate mechanisms are arranged beside the arc welding passes corresponding to the four corners of the jig body. The aluminum alloy CMT arc welding rotary tablejig has the advantages that postwelding deformation of a product is eliminated, the quality of welding seams and the welding passes in the welding process is ensured, continuous production of a jig production line is ensured, the process of post-welding deformation correction or repair is omitted, the inspection process is simplified, thermal deformation of a welded product is reduced or eliminated, a positioning mechanism of the jig is protected from being eroded by heat, and the situation that due to damage of the positioning mechanism, the production line needs to be stopped and maintainedcan be avoided.

Description

technical field [0001] The invention belongs to the technical field of welding equipment for auto parts, and relates to a jig, in particular to an aluminum alloy CMT arc welding turntable type jig. Background technique [0002] In the new energy automobile industry, the future power development trend is the battery box assembly. In order to adapt to the technical characteristics of lightweight new energy, its products are all aluminum alloy profile frame structures. Therefore, the difficulty of the assembly arc welding process lies in aluminum arc welding. In the traditional arc welding fixture, the positioning and pressing of the product are all in the form of steel blocks, and no temperature control technology is adopted, which leads to the high temperature of the positioning and pressing block during the batch welding process of the product, which affects the quality of arc welding and leads to The deformation of the product after arc welding is serious, especially for th...

AI Technical Summary

Problems solved by technology

[0002] In the new energy automobile industry, the future power development trend is the battery box assembly. In order to adapt to the technical characteristics of lightweight new energy, its products are all aluminum alloy profile frame structures. Therefore, the difficulty of the assembly arc welding process lies in aluminum arc welding. In the traditional arc welding fixture, the positioning and compression of the product are all in the form of steel blocks, and no temperature control technology is adopted. As a result, the temperature of the positioning and compression blocks is too high during the batch welding process of the product, which affects the quality of arc welding and causes The deformation of the product after arc welding is serious, especially for the material of aluminum alloy, because aluminum and aluminum alloy have the characteristics of strong thermal conductivity, large heat capacity, large linear expansion coefficient, low melting point and low high temperature strength, so aluminum and aluminum alloy can be used in arc welding During the process, the plate is heated and expanded, causing the gap between the welds to become larger, which leads to defects such as difficulty in welding aluminum and difficulty in controlling the welding quality. Moreover, the aluminum alloy dissipates heat very quickly after welding, which can cause the fixture mechanism to fail in a short time. The temperature rise can reach 80-90°C, so it is necessary to design a fixture suitable for aluminum alloy CMT arc welding

Images