A wrench for battery assembly

Abstract

The invention discloses a wrench for assembling an accumulator. The wrench is used for twisting off a polygonal upper cover end of the accumulator. The wrench comprises a power transmission part connected with external connection power, a wrench head and a wrench main body for connecting the power transmission part and the wrench head, wherein the wrench head comprises at least three jack catches, and the inner surfaces of the jack catches are matched with the polygonal surface of the upper cover end, so that after the upper cover end sleeves the wrench head, interference fit can be formed. The wrench provided by the invention can be directly connected with the external connection power on a production line, so that the wrench can complete operation on the production line, the operation is simple, the situation that the wrench needs to be carried to a miller artificially for processing can be avoided, and the processing quality is also improved.

Description

technical field [0001] The invention relates to a wrench, in particular to a wrench for battery assembly. Background technique [0002] Since direct continuous casting and welding has many advantages such as making full use of the battery space, the assembly of power lead-acid batteries mostly adopts direct continuous casting and welding (dipping) structure. When performing direct connection welding, it is necessary to inject glue and seal the battery cover, so the cover terminal is provided on the battery cover to avoid affecting the sealing effect or the sealant enters the shell, but after the sealing is completed, the cover terminal needs to be sealed. Remove to expose the pole before soldering the terminal to the pole. [0003] In the existing direct continuous casting and welding assembly process, the terminals of the battery case are removed by milling to expose the poles, and then the terminals are welded. , The requirements for fixing the battery are high, and when...

AI Technical Summary

Problems solved by technology

[0003] In the existing direct continuous casting and welding assembly process, the terminals of the battery case are removed by milling to expose the poles, and then the terminals are welded. , the battery fixing requirements are high, and when the milling machine tools contact with soldering and other shaping metals during processing, it will lead to difficulty in chip removal, which will damage the tools

In addition, the milling machine is prone to tool looseness, wear and tear, causing interruption of the upper cover terminal, etc.

Moreover, it is difficult to complete the online connection on the production line by using the milling terminal method, which increases the labor of the workers.

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