Assembly welding clamping fixture of battery box cover

Abstract

The invention provides an assembly welding clamping fixture of a battery box cover, aiming to solve the problems of big production shape and position errors, high cost and low product percent of pass of the traditional products. The assembly welding clamping fixture of the battery box cover mainly comprises a support, a support plate, edge cutting pins, rib plates (No.1-No.4), positioning double-screw bolts, toggle clamps the types of which are GH-12130-SM, toggle clamps the types of which are GH-12130-HB and a hinge, wherein the support comprises an upper beam, a lower beam, a support beam, a ladder-shaped cushion block and an auxiliary beam; the upper ends of the rib plates (No.1-No.4) are evenly distributed on the upper beam; the lower ends of the rib plates No.1, No.3 and No.4 are fixed on the lower beam; the lower end of the rib plate No.2 is fixed on the ladder-shaped cushion block on the front end surface of the auxiliary beam; the left end surfaces of the rib plates (No.1-No.4) are respectively provided with two toggle clamps the types of which are GH-12130-SM; the support plate is fixed on the upper surface of the support beam by adopting bolts; the edge cutting pins are evenly arranged on the upper beam; and the hinge is fixed on the lower beam by adopting the bolts.

Description

technical field [0001] The invention relates to a welding mold, more specifically, the invention relates to a welding mold for a battery case cover. Background technique [0002] The battery box cover is the outer cover of the battery box of the EMU. The battery box cover protects the battery, control module, wiring harness and seals, and plays a vital role in the stable and safe driving of the EMU. The frame of the battery box cover is welded together by four rib plates, keyhole plates and hinge plates. The battery box cover assembly welding mold can ensure the shape and size of the product, maintain the stability of the parts during processing, promote the consistency of the parts after processing, and at the same time improve work efficiency and ensure the progress of mass production. At present, in the field of battery box cover welding, the single-piece parts that make up the skeleton are generally positioned and welded by welding molds. At present, this type of mold...

AI Technical Summary

Problems solved by technology

At present, this type of mold structure is formed by bending a whole large flat plate to form the required shape and achieve the required precision. However, due to the long length and large width of the flat plate, it is difficult to process. Even if it is processed, It also fails to meet the shape and accuracy requirements. If the positioning and welding of the single-piece parts that make up the skeleton are performed on such a mold, the welded products will also have large shape and position errors, resulting in hinge axes and joints after welding. The position error of the keyhole axis is very large, and finally the battery box and the box cover cannot be assembled, resulting in high product cost and high failure rate

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