Multi-wire copper harness end forming device and forming method thereof

Abstract

The invention discloses a multi-wire copper harness end forming device and a method for forming a multi-wire copper harness end by the aid of the multi-wire copper harness end forming device, which are used for solving the technical problem that connection quality of a multi-wire copper hardness and a conducting copper plate is poor by an existing resistance welding method. The technical scheme includes that the device comprises a worktable (1), a power source (28), a controller (29), a forming fixture and a pressurizing mechanism, high-precision forming of the multi-wire copper harness end is realized under the effect of pressure, two sides of the forming fixture are made of high-temperature-resistant ceramic insulating materials, heating current which is precisely controlled uniquely flows through the multi-wire copper harness end assuredly, a stopping mechanism and a copper hardness end positioning mechanism which are disposed on two sides of the forming fixture adopt an electronic-controlled pneumatic closing mode, a copper harness can be quickly assembled and disassembled, the device is provided with a mum-grade high-precision displacement sensor, and a method for controlling conduction time by the aid of deformation displacement quantity is adopted and matches with the forming fixture, so that stably control of high-precision dimension when the multi-wire copper harness end is formed is realized.

Description

technical field [0001] The invention relates to a forming device, in particular to a forming device for the end of a multi-filament copper wire bundle. It also relates to a method for forming a multi-filament copper wire harness end by using the multi-filament copper wire bundle end forming device. Background technique [0002] When the small-section multi-filament copper wire harness and the conductive copper sheet are connected by the resistance welding process, if the unformed copper wire harness end is directly used to connect the conductive copper sheet, the end of the multi-filament copper wire harness is bound to be loose under the action of welding pressure. Part of the copper wire bundle is connected to the conductive copper sheet, which affects the conductive effect. An effective way to solve this problem is to extrude and preform the end of the multi-wire copper wire harness from a loose structure into a tightly integrated rectangular cross-section before the res...

AI Technical Summary

Problems solved by technology

In order to ensure the reliability and consistency of the welding quality of the small cross-section multi-wire copper wire harness and the conductive copper sheet after pre-forming, there is a high precision requirement for the pre-formed rectangular cross-sectional size of the end of the multi-wire copper wire harness. Forming by hot pressing or cold pressing

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