Automatic positioning device for battery cell tab

Abstract

The invention provides an automatic positioning device for a battery cell tab, and relates to the field of lithium battery production. The automatic positioning device for the battery cell tab comprises an upper end socket, a lower end socket, a right clamping cylinder, a left clamping cylinder, a regulating valve, a correcting fixing plate, a forward and backward screw rod, a fine adjustment block, an up-down sliding plate, a forward and backward guide rail fixing plate, a linear guide rail, an up-down cylinder, a left fixing clamp, a right fixing clamp, a left opening spring, a spring supporting block, a right opening spring, a linear guide rail, a right clamp, a left clamp, a base, an aluminum mold and a bare battery cell, wherein the rear end of the upper end socket is movably connected with the lower end socket. According to the automatic positioning device for the battery cell tab, inert gas flows into the right clamping cylinder and the left clamping cylinder from the cylindersthrough pressure difference, flows into the central position from the cylinders, and pushes the left fixing clamp and the right fixing clamp to adjust the positions, and the right clamp and the left clamp are aligned with the tab position to clamp, so that the precision of battery cell tab folding and positioning is improved.

Description

technical field [0001] The invention relates to the technical field of lithium battery production, in particular to an automatic positioning device for battery tabs. Background technique [0002] In the production process of soft-pack lithium batteries, due to certain deviations in the positions of the positive and negative tabs of the battery cells, it will affect the subsequent processes of punching and bending of the tabs, resulting in a decrease in the pass rate of soft-pack batteries. In the prior art, the lithium-ion battery is used in the battery cell carrier because of its good cycle performance, wide operating temperature range, high voltage platform, and environmental friendliness. It stands out among the few new energy sources and has become a power source that has attracted much attention. one. In the lithium-ion battery, especially in the production process of the all-tab battery, it is necessary to use ultrasonic welding to perform positioning welding of the t...

AI Technical Summary

Problems solved by technology

However, there are deviations in the size of different cells. When using the above positioning device for positioning, due to the accumulation of errors, the positioning deviation will be large, resulting in insufficient deviation correction accuracy in subsequent deviation correction.

The existing mechanism for adjusting and aligning the tabs has the problems of long alignment time, low efficiency, and poor flexibility

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