Welding tool clamp for improving welding penetration of square lithium battery cover plate

By designing high-precision and high-stability welding fixtures, the problems of welding accuracy and versatility of lithium battery cover plates were solved, achieving high-quality and high-efficiency welding production, reducing costs and improving product qualification rate.

CN224073670UActive Publication Date: 2026-04-03NANJING GUOXUAN NEW ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional lithium battery cover welding devices suffer from difficulties in ensuring welding precision, unstable clamping leading to uneven welds, and poor versatility, resulting in high production costs and low efficiency, failing to meet the demands for high-quality and high-efficiency production.

Method used

Design a welding fixture that includes a core positioning assembly and a cover plate positioning assembly. Employ a lifting and lateral drive mechanism, and utilize a movable clamping plate and guide surface made of ceramic material to accurately position the cover plate, preventing positional deviation and ensuring welding quality.

Benefits of technology

It improved welding precision and stability, reduced weld burn-through, increased product qualification rate, reduced production costs, and improved production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224073670U_ABST
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Abstract

The utility model discloses a welding work fixture for improving square lithium battery cover plate welding penetration, which comprises a base, a roll core positioning component and a cover plate positioning component are arranged on the base, the roll core positioning component comprises two roll core positioning grooves symmetrically arranged at the top of the base, and positioning clamping plates are arranged at the tops of the roll core positioning grooves. The positioning clamping plates are connected with lifting driving mechanisms; the cover plate positioning assembly comprises a cover plate positioning groove formed in the middle of the two roll core positioning grooves, the cover plate positioning groove is deeper than the roll core positioning grooves, inclined guide faces are arranged on the periphery of the cover plate positioning groove, two movable clamping plates are arranged above the guide faces on the two sides in a central symmetry mode, and the two movable clamping plates are connected with a synchronous transverse driving mechanism. The roll core positioning grooves are formed to limit the roll cores on the two sides, the positioning clamping plates are arranged at the tops of the roll core positioning grooves, and the positioning clamping plates are clamped at the tops of the roll cores, so that the situation that the roll cores jump up and down in the welding process, and consequently welding seams of connecting pieces and cover plates on the roll cores are uneven can be prevented.
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