Cast welding mold for lead-acid storage batteries and bridge welding method for buses

Abstract

The invention relates to a cast welding mold for lead-acid storage batteries and a bridge welding method for buses. The cast welding mold comprises bus positions and bridge positions. The depths of the bridge positions are larger than those of the bus positions, slots are formed in the cast welding mold, each slot is positioned between the two corresponding bridge positions, one end of each slot is positioned at the edge of the cast welding mold, the other end of each slot is located at the corresponding bridge position, isolation cores are horizontally mounted in the slots in an insertion manner, and the depths of the slots are smaller than those of the bridge positions. The bridge welding method includes inserting the isolation cores into the slots when bridge welding is performed on the buses; filling lead into the mold; positioning and turning pole groups of the batteries; perpendicularly and downwardly inserting tabs into the bus positions; pulling out the isolation cores after the mold is cooled and the buses and bridges are formed; removing the pole groups of the batteries from the mold to complete case welding. The cast welding mold and the bridge welding method have the advantages that the buses and the bridges of the batteries are formed at one step, the bridges are consistently fixed by the aid of the mold, and accordingly high current bearing capacity of the lead-acid storage batteries is guaranteed; isolation core devices can be automatically controlled easily, lead consumption is reduced, and the pole groups can be loaded into battery holders conveniently.

Description

technical field [0001] The invention relates to the field of lead-acid battery manufacturing, in particular to a lead-acid battery casting and welding mold and a bus bar cross-bridge welding method. Background technique [0002] In the manufacturing process of lead-acid batteries, casting welding is a crucial process in the assembly process of lead-acid batteries. The quality of bus bars and bridges obtained by casting welding is an important factor affecting the quality of lead-acid batteries. [0003] The cross-bridge welding of the bus bar refers to using the mold to cast and weld the positive and negative poles of the electrode groups that have been arranged and combined respectively, and connect a certain number of electrode groups in series through the bridge according to the principle of power supply series. [0004] In the traditional casting and welding method, the depth of the cross-bridge position of the mold is the same as the depth of the confluence row. When th...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a casting and welding mold for lead-acid batteries and a bus bar cross-bridge welding method to overcome the problem that the traditional bus bar cross-bridge welding is difficult to guarantee the quality of casting and welding due to force deformation

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