Punching shear die for wiring copper bar of current transformer

Abstract

The invention relates to a punching shear die for a wiring copper bar of a current transformer. The punching shear die comprises a punching machine; a power connecting rod is arranged on the punching machine; a table plate is disposed on the upper end face of the punching machine; tracks are arranged on the left and right sides of the table plate respectively; sliding blocks are mounted in the tracks respectively; an upper die is arranged between the sliding blocks; the left end of the upper die is stuck in the sliding block in the track on the left side; the right end of the upper die is stuck in the sliding block in the track on the right side; a die handle is arranged at the upper end of the upper die and connected to the power connecting rod; an upper tool rest is disposed on the lower portion of the upper die; an upper tool edge is fixed to the lower front end of the upper tool rest in a bolted connection mode; a spring is installed at the lower end of the front side face of the upper tool rest; the lower end of the spring is connected with a material pressing plate; the lower end face of the material pressing plate is located below the lower end face of the upper tool rest. The punching shear die for the wiring copper bar of the current transformer is high in machining efficiency and free from material waste, the sizes of to-be-punched parts can be flexibly decided as required, the machining is adjustable, extra power equipment is not required, and equipment investment is reduced.

Description

technical field [0001] The invention relates to the technical field of transformer production equipment, in particular to a punching and shearing die for wiring copper bars of current transformers. Background technique [0002] Due to the diversification of the size of the wiring copper bars on the primary side of the current transformer, the traditional processing methods: 1. Use a shearing machine or a sawing machine to cut the copper bars and then process them to the required size by a planer; 2. Use a punching machine for mold processing. The disadvantages of these two traditional processing methods are: in the first method, the blanking size is larger than the forming size (with a certain size margin to process the workpiece surface), which will lead to waste of copper materials, and secondary processing To invest labor and time, the efficiency is low. The second way is to use a punch mold to process. Although this method has high efficiency, it requires a lot of mold ...

AI Technical Summary

Problems solved by technology

The disadvantages of these two traditional processing methods are: in the first method, the blanking size is larger than the forming size (with a certain size margin to process the workpiece surface), which will lead to waste of copper materials, and secondary processing To invest labor and time, the efficiency is low

The second way is to use a punch mold to process. Although this method has high efficiency, it needs to invest a lot of mold costs due to the variety of copper bar sizes. In addition, when using a punch mold to process, there are scraps, which will also lead to waste of copper materials.

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