Preforming device for copper flat wire precision welding

Abstract

The invention belongs to the technical field of copper flat wire welding equipment, and particularly relates to a preforming device for copper flat wire precision welding. The device comprises a base,a stamping plate, a pressing plate, guide pillars, springs and a centering device. A U- shaped mold cavity is arranged on the middle part of the base, the stamping plate is arranged on the base by making use of the guide pillars, and a punch is arranged on the bottom face of the stamping plate; the pressing plate is arranged on the middle part of the guide pillars, and a guide hole is formed in the pressing plate; and springs are arranged on the guide pillars between the base and the pressing plate and between the pressing plate and the stamping plate in a sleeving mode; and the centering device comprises a first centering device arranged on one side of opening direction of the mold cavity on the base and a second centering device relative side to the first centering device, a centering sliding block is arranged on the centering device, and the copper flat wire groove is formed in the centering block. A welded joint has high dimensional precision, the joint is not needed to polish after being welding, the post processing link of generating copper powder is eliminated so that the quality risk is lowed, and the copper flat wire precision welding is achieved. The device is simple inthe whole structure, convenient to operate and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of copper flat wire welding equipment, in particular to a copper flat wire precision welding preforming device. Background technique [0002] Before enameled baking of copper flat wire, when a plate of copper flat wire is nearly used up, it needs to be welded with a new plate of copper flat wire, so that enamelled production can continue continuously. The commonly used welding method is to put the front and rear two wire joints on the electric welding machine for welding, and then mechanically beat or grind the joints to the required size specifications. This process will produce copper powder, which affects the cleanliness of the working environment and brings risks to the insulation performance of the enamelled package. At the same time, the size of the joint is difficult to ensure accuracy. When the size is too large, it is difficult to pass through the mold, and the mold jam affects production. Breaking...

AI Technical Summary

Problems solved by technology

This process will produce copper powder, which affects the cleanliness of the working environment and brings risks to the insulation performance of the enamelled package. At the same time, the size of the joint is difficult to ensure accuracy. When the size is too large, it is difficult to pass through the mold, and the mold jam affects production. stop production

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