Automatic battery core spot welding device and automatic spot welding method thereof

Abstract

The invention discloses an automatic battery core spot welding device and an automatic spot welding method thereof. The automatic battery core spot welding device comprises two spot welding devices, a spot welding fixture, a fixture clamping seat, a displacement device and a PLC control system; welding heads of the spot welding devices are symmetrically arranged, the spot welding fixture is used for containing a battery core monomer to be welded, the fixture clamping seat is used for fixing the spot welding fixture, and the displacement device is arranged between the two welding heads and can drive the fixture clamping seat and the welding heads to do relative three-dimensional movement to enable the welding heads to correspond to spot welding holes formed in the spot welding fixture to perform welding in the spot welding process; the PLC control system can enable the spot welding devices and the displacement device to coordinately work; the spot welding fixture can accurately position and fix different numbers of the battery cores to ensure that electrodes and metal sheets of the battery cores to be closely attached; through the displacement which moves in the X, Y and Z three-dimensional directions to enable the welding heads to correspond to the spot welding holes formed in the spot welding fixture to perform welding, automation is completely achieved in the whole spot welding process, manpower is saved, the efficiency is improved, and it is guaranteed the quality of the products processed through spot welding is good without being influenced by individual level of operators.

Description

technical field [0001] The invention relates to mobile power supply production and processing equipment, in particular to an automatic spot welding device for electric cores and an automatic spot welding method thereof. Background technique [0002] In the production and processing of mobile power supplies, it is necessary to combine single cells into a battery pack. One of the most important steps is to spot weld metal sheets on the positive and negative electrodes of multiple cells to achieve parallel expansion of batteries. At present, manual spot welding is usually used to process the cells one by one, and the metal sheets are spot welded to the two poles of the cell. This manual spot welding processing method has low production efficiency and high labor costs, and multiple battery cells are spot welded. In this case, the fixation effect of the spot welding position is not good, which will easily lead to deviation of the spot welding position or false welding, which will...

AI Technical Summary

Problems solved by technology

At present, manual spot welding is usually used to process the cells one by one, and the metal sheets are spot welded to the two poles of the cell. This manual spot welding processing method has low production efficiency and high labor costs, and multiple battery cells are spot welded. In this case, the fixation effect of the spot welding position is not good, which will easily lead to deviation of the spot welding position or false welding, which will affect the normal power supply of the battery pack. The product quality is greatly affected by the individual proficiency and level of the operator. production demand

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