A Contact Seat Forming Device for Disconnector 550kv

Abstract

The invention relates to a forming device of a contact pedestal for a 550kV disconnector. The forming device is characterized in that the forming device mainly comprises a fixing workbench, a male die, a female die component and a floating device. The female die component mainly comprises a floating plate, turning plates and turning plate limit components, wherein the turning plates are hinged to two sides of the floating plate, and the turning plate limit components are capable of driving the turning plates to rotate to the floating plate around corresponding pins when moving downwards along with the floating plate. The floating device is used for pushing the floating plate to move upwards. The forming device has the advantages that a metal plate is bent upwards by turning the turning plates inwards under limiting of a female die; high sliding friction is avoided during bending so that surfaces of the metal plate are prevented from being scratched; as the upper surfaces of the turning plates tilt inwards after the turning plates are turned completely, pre-excessive bending is realized, the own elastic deformation of the metal workpiece is offset, and requirements for the perpendicularity is guaranteed; in addition, the contact pedestal with smooth and scratch-less surface is formed at one step, the follow-up manual grinding and perpendicularity correction process is omitted, and thus production efficiency is improved greatly.

Description

technical field [0001] The invention relates to a forming device for an isolating switch, in particular to a forming device for a contact seat for a 550kV isolating switch. Background technique [0002] The isolating switch is mainly used to reliably isolate the part that needs to be powered off from the live part in the high-voltage power distribution device to ensure the safety of maintenance work. The traditional isolating switch conductive circuit includes a pair of conductive arms, a contact or a finger installed at one end of the conductive arm, and the other end of the conductive arm is electrically connected to the wiring board through a soft connection. Contact fingers cooperate to realize opening and closing. [0003] The isolating switch contact holder is used to hold the contact fingers, such as figure 1 As shown, its structure has a U-shaped cross-section, which has high requirements on surface roughness and verticality, and flash burrs are not allowed. In th...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that there is sliding friction between the outer surface of the part and the die, the indentation on the outer surface of the bend is serious, and there are scratches on the surface, and due to structural limitations, it can only be bent by 90° during forming, but the demoulding Finally, under the action of the elastic deformation of the material itself, its side will reset slightly to the outside at a certain angle.

Therefore, after pressing, it is necessary to manually adjust the verticality first, and then carry out secondary processing on the surface in order to improve its surface quality; the work efficiency is low, the cost is high, and the surface is irregular after manual grinding, which affects the surface quality and cannot achieve high quality. standard

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