Battery module welding method and system

Abstract

The invention provides a battery module welding method and system. The battery module welding method comprises the following steps that 1, an initial X coordinate and an initial Z coordinate of any welding point of the battery module are detected by a 2D scanner; 2, an adjusted X coordinate and an adjusted Z coordinate of the welding point are acquired according to the initial X coordinate, the initial Z coordinate and a preset deviation value of the welding point; and 3, welding is carried out on the welding point through a PLC welding system according to the adjusted X coordinate, the adjusted Z coordinate and a preset Y coordinate of the welding point. According to the battery module welding method and system, the 2D scanner adopts laser detection and is not limited by the glossiness ofa metal surface, and therefore the welding point is basically detected, the X coordinate and the Z coordinate of the welding point can be detected, height measurement is omitted, the accuracy is improved, the welding percent of pass is high, and the welding speed is greatly improved; and meanwhile, all the welding points of the battery module can be detected only by one step by the 2D scanner, and therefore the overall efficiency of the machine is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of welding technology, and in particular to a battery module welding method and system. Background technique [0002] At present, the process of welding battery modules is very common, usually controlled by PLC, taking pictures through industrial cameras, and performing two-dimensional processing by visual processing software to find out the X coordinates and Y coordinates of the welding points, and compare the X coordinates and The Y coordinate is transmitted to the PLC control system, and then the welding point is measured by the laser ranging sensor to find the Z coordinate of the welding point. According to the X coordinate, Y coordinate and Z coordinate of the welding point, the welding point is measured by the PLC welding system Do the welding. [0003] In the prior art, because the workpiece is two different metals (copper and aluminum) after being bent and formed, the surface is electrop...

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Problems solved by technology

[0004] The embodiment of the present invention provides a battery module welding method and system, which is used to solve the problem of a very high welding defect rate caused by the large gloss difference of the surface treatment in the prior art, and to improve the welding accuracy

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