Lithium battery production line and tab conductive handle positioning detection method, welding device

Abstract

The invention relates to the field of production devices for tab conductive handles, in particular to a lithium battery production line, a positioning detection method for tab conductive handles, and a welding device. The positioning detection method of the tab conductive handle is as follows: take the tab conductive handle on the tab conductive handle to align the alignment line, take the battery core on the battery cell to align the alignment line, and when the battery core and the tab tab conductive handle are aligned, the tab The alignment line of the conductive handle and the alignment line of the battery core are perpendicular to the arrangement direction of the tab conductive handle and the battery core; the image of the tab conductive handle and the battery core is captured by the imaging device, and the tab conductive handle is measured by the image processing system The parallelism between the alignment line and the alignment line of the battery core is used to measure the position deviation between the tab conductive handle and the battery core and judge whether the position deviation between the tab conductive handle and the battery core is within the set range. By setting the size of the predetermined deviation, the alignment accuracy of the tab conductive handle and the tab on the battery core can be adjusted, which solves the problem that the current welding method of the tab conductive handle cannot guarantee the alignment of the tab conductive handle and the tab on the battery core A question of precision.

Description

technical field [0001] The invention relates to the field of production devices for tab conductive handles, in particular to a lithium battery production line, a positioning detection method for tab conductive handles, and a welding device. Background technique [0002] The pole ear conductive handle is a raw material for the production of lithium-ion polymer battery products, such as mobile phone batteries, notebook batteries, and electric vehicle power batteries used in daily life. The pole ear conductive handle is a metal conductor that leads out the positive and negative poles in the battery core. During the production process of lithium batteries, the position of the battery's positive and negative tabs on the welding station directly affects the welding effect. At present, in the production process of lithium batteries, the conductive handle of the tab is only set at the set position on the welding table through mechanical positioning, but due to mechanical vibration ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for detecting the positioning of the tab conductive handle, so as to solve the problem that the current welding method of the tab conductive handle cannot guarantee the alignment accuracy of the tab conductive handle and the tab on the battery core; in addition, the present invention The purpose of the present invention is also to provide a tab conductive handle welding device that realizes the above-mentioned tab conductive handle positioning detection method; in addition, the purpose of the present invention is to provide a lithium battery production line using the above-mentioned tab conductive handle welding device

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