Battery welding device used for production of lithium ion batteries

Abstract

The invention discloses a battery welding device used for production of lithium ion batteries, and particularly relates to the technical field of production of lithium ion batteries. The battery welding device used for production of the lithium ion batteries comprises a chassis, wherein a telescopic assembly is installed on the rear wall of the chassis, and a positioning assembly is installed on the upper surface of the chassis. According to the battery welding device used for production of the lithium ion batteries, by arranging the positioning assembly, different types of aluminium alloy cylinders can be clamped and loosened by encirclement rings formed by the inner walls of clamping strips, position stability of the lithium ion batteries during filling and welding is guaranteed, leakage and waste of a filling material are reduced, the efficiency of filling the lithium ion batteries is improved, the difficulty level of welding the lithium ion batteries is lowered, by arranging the telescopic assembly, a limiting rod rotates to change angles between left-leaning long boards and right-leaning long boards, thus six welding heads can conduct extension and retraction of circular motion at the same time, multiple positions of the outer wall of each aluminium alloy cylinder can be welded at the same time, and position stability of the welding heads is guaranteed in welding processes, so that a welding effect is even, and the welding quality is guaranteed.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of lithium-ion battery production, and in particular to a battery welding device for lithium-ion battery production. Background technique [0002] Lithium-ion battery is a secondary battery that mainly relies on the movement of lithium ions between the positive and negative electrodes to work. During the charging and discharging process, Li+ intercalates and deintercalates back and forth between the two electrodes: when charging, Li+ is deintercalated from the positive electrode, intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. For some precise small instruments, most of them use cylindrical lithium-ion batteries. During the production process of such lithium-ion batteries, welding devices are required to weld and fix the positive electrode sheet with it to ensure the inter...

AI Technical Summary

Problems solved by technology

[0005] To this end, the embodiment of the present invention provides a battery welding device for lithium-ion battery production. Through the setting of the positioning assembly, the power knob can be driven by manual or external rotating power sources such as motors or motors, so that the driving gear and the driven gear can be connected to each other. Teeth meshing transmission, controlling the rotation of the active ring, so that the column groove controls the position of the clamping column, so that the clamping bar rotates clockwise or counterclockwise around the rotating shaft, and the encircling circle formed by the inner wall of the clamping bar can be used for different types of aluminum alloy cylinders. Clamping and loosening ensures the stability of the position of lithium-ion batteries during filling and welding, reduces the leakage and waste of filling materials, improves the filling efficiency of lithium-ion batteries, reduces the difficulty of welding lithium-ion batteries, and ensures The welding quality of the finished battery is improved. Through the setting of the telescopic component, the external rotating power source such as the engine or motor can drive the rotation of the limit rod, which can drive the change of the angle between the left-inclined long plate and the right-inclined long plate, and push the limit rod along the limit. The position groove slides, so that the six welding heads can extend and shrink in an arc motion at the same time, and can weld multiple places on the outer wall of the aluminum alloy cylinder at the same time. During the welding process, the position of the welding head is guaranteed to be stable, and the welding effect is improved. Uniformity, which ensures the welding quality, to solve the poor applicability of the ordinary clamping device in the prior art, which affects the filling efficiency of lithium-ion batteries, causes waste of resources, increases the welding difficulty of the welding device, and increases the failure rate of finished batteries , the existing welding device can only weld one place at a time. During the welding process, the position of the welding head is unstable, which makes the welding uneven and affects the welding effect.

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