A body-in-white and its battery fixing bracket and a welding method

Abstract

The invention relates to the technical field of body-in-white welding and vehicle assembly, in particular to a body-in-white and its battery fixing bracket and a welding method. By dividing the battery fixing bracket used for fixing the battery into the lower support part which is welded and fixedly connected with the longitudinal beam and the upper support part which is fastened with the lower support part through the connecting part after the engine is installed, the installation of the engine during the assembly process The process is completed between welding the lower support and fixing the upper support. Not only does it ensure the adjustment space required for installing the engine, but the welding process ensures the position accuracy and stability of the battery fixing bracket. Compared with the limited engine installation space caused by the prior art or the installation of a complete battery bracket before the engine is installed, and the low position accuracy caused by the fixed installation of the battery bracket after the engine is installed, the present invention significantly improves each The operability of the assembly process, the balance of the process cycle and the stability of the assembly position accuracy.

Description

technical field [0001] The invention relates to the technical field of body-in-white welding and vehicle assembly, in particular to a body-in-white and its battery fixing bracket and a welding method. Background technique [0002] With the continuous development of the vehicle manufacturing industry such as automobiles and electric vehicles, the structural design and assembly process layout of the vehicle are constantly improving and optimizing. Among them, the body-in-white welded in the assembly and welding workshop is painted and then enters the final assembly workshop for the assembly of sub-assemblies and parts. The assembly and debugging of components with a tight layout such as the engine and battery requires a lot of structural and process work. aspect considerations. [0003] In recent years, when assembling components such as engines, batteries, and wiring harnesses on the body-in-white in the final assembly workshop, the optimization and improvement of the operab...

AI Technical Summary

Problems solved by technology

In such an operation, since the battery bracket and the longitudinal beam do not have any pre-welded fixing points, when assembling the battery bracket, in order to limit the degrees of freedom in each direction through the connecting pieces, it is necessary to fix the upper part of the longitudinal beam. Tighten multiple connecting parts on the surface, side elevation and other parts, which requires the operator at this station to complete in a cramped space with the engine and other components fixed in the engine room, which will inevitably increase the difficulty of assembly and affect The process beat of this station is limited, and the operability is low, and the battery bracket is completely installed through each positioning hole through the connector, which also makes the position accuracy and accuracy stability after assembly not guaranteed.

[0006] Among the above-mentioned two kinds of technical arrangements of the battery bracket in the prior art, one is to weld the battery bracket to the longitudinal beam as a whole in the assembly and welding workshop, and the other is to install it separately after the engine assembly station in the assembly workshop. The two processes The shortcomings of the layout are "complementary" to each other. Taken together, they cannot meet the comprehensive requirements of the operability of the engine assembly process, the battery bracket assembly process, the balance of the process cycle, and the stability of the position accuracy after assembly.

Images