Novel laser cap welding equipment

The new laser cap welding equipment is used to achieve precise alignment and automated welding of the battery cell and the cap, solving the problems of low efficiency, high cost and unstable quality of cap welding in the existing technology, and improving production efficiency and welding quality.

CN223455397UActive Publication Date: 2025-10-21DONGGUAN JIANXIN TIANLAN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422935905.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-10-21
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Cap welding in existing battery production has problems such as low efficiency, high cost and unstable quality, especially inconsistent welding results caused by manual operation and inaccurate positioning.

Method used

A new type of laser cap welding equipment is used, which uses a strong magnetic lifting rod to lift the battery core, and realizes precise alignment and welding of the battery core and the cap by pressing the copper nozzle and limiting clamping claws. It is combined with the transmission turntable and the cap adsorption table to realize automated operation.

Benefits of technology

It improves the consistency of welding quality and production efficiency, reduces production costs, and is conducive to mass production of products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses novel laser cap welding equipment which comprises a battery cell working table and a working frame arranged on one side of the battery cell working table, a fixing table is vertically arranged on one side of the surface of the battery cell working table, a strong magnetic jacking rod is vertically and movably arranged on one side of the fixing table, and a battery cell is vertically attracted to the top end of the strong magnetic jacking rod. A movable table is arranged on one side of the top end of the working table in a driving mode, a pressing copper nozzle is arranged on one side of the movable table, and a clearance opening is formed in the bottom end of the pressing copper nozzle; further, the movable table drives the pressing copper nozzle to move to the top end of the battery cell and clamps an end cover at the top end of the battery cell through the clearance opening, so that the end cover is limited and fixed on the battery cell and a shell opening is prevented from being deformed, and subsequent welding between the battery cell and the end cover is facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a battery field especially relates to a novel laser cap welding equipment. BACKGROUND

[0002] Power battery key technology gradually matures, and various power batteries have been widely applied to electric cars, electric motorcycles, electric bicycles, mobile communication terminal products and energy storage products.

[0003] Cap welding is an essential process in cylindrical battery manufacturing, which needs to weld the pole piece on the cap with the pole lug of the battery cell. In order to improve the quality of cap welding, the pole lug needs to be cleaned and arranged, and the dirt, electrolyte crystals and other impurities on the pole lug need to be removed. After welding, the cap needs to be closed on the battery shell to make the battery clamped. Many steps often need to rely on manual operation. Such production mode has problems of long battery production time, low efficiency and high cost. The cap and the battery cell are located in the positioning clamp respectively, and the welding side wall of the cap and the battery cell is positioned and attached by the clamp. However, part of the welding side wall still has loose condition, which affects the welding effect. The height of the conveying line is inconsistent with the suction height of the cap, which leads to inconsistent welding effect of the pole lug of the battery cell and the cap, unstable battery quality, high rejection rate of the battery, further increased production cost and disadvantageous to batch production of products. Therefore, a novel laser cap welding equipment is proposed. SUMMARY

[0004] The utility model aims at providing a technical scheme which can solve the above problems.

[0005] A novel laser cap welding equipment, comprising a battery cell workbench and a workbench arranged on one side of the battery cell workbench, a fixed table is vertically arranged on one side of the surface of the battery cell workbench, a strong magnetic lifting rod is vertically and movably arranged on one side of the fixed table, and a battery cell is vertically adsorbed on the top end of the strong magnetic lifting rod. The strong magnetic lifting rod can lift the battery cell for subsequent combination and welding of the battery cell and the cap. A moving table is driven and arranged on one side of the top end of the workbench, a compression copper nozzle is arranged on one side of the moving table, an emptying port is formed at the bottom end of the compression copper nozzle, the moving table drives the compression copper nozzle to move to the top end of the battery cell and clamps the end cover at the top end of the battery cell through the emptying port, so that the end cover is fixed on the battery cell and the shell opening is prevented from deforming, and the welding between the battery cell and the end cover is facilitated.

[0006] Preferably, a transmission turntable frame is vertically and rotatably arranged at the middle position of the battery cell workbench, cap suction tables with caps adsorbed are vertically and circumferentially arranged on the side surface of the top end of the transmission turntable frame, the cap suction tables and the workbench are aligned with each other, and the transmission turntable frame is located on the side surface of the fixed table.

[0007] Preferably, the strong magnetic lifting rod is provided with an electric core limiting frame, the electric core limiting frame is vertically located at the side of the top end of the strong magnetic lifting rod, and the electric core is vertically clamped on the side of the electric core limiting frame and between the strong magnetic lifting rod and the electric core limiting frame in the same moving direction.

[0008] Preferably, one side of the moving table is provided with a limiting clamping jaw, and the limiting clamping jaw is transversely located at the top end of the workbench, and the limiting clamping jaw moves horizontally on the workbench.

[0009] Preferably, the moving table and the limiting clamping jaw are respectively provided with a cam connecting rod between the workbench, and the cam connecting rod is movably arranged in the workbench, and the cam connecting rod is movably and drivingly connected between the moving table and the limiting clamping jaw.

[0010] Compared with the prior art, the beneficial effects of the utility model are that: the moving table drives the pressing copper nozzle to move to the top end of the electric core and clamps the end cover at the top end of the electric core through the air avoidance opening, so that the end cover is limited on the electric core and the shell opening is prevented from being deformed, so as to facilitate the welding between the electric core and the end cover, ensure that the to-be-welded parts are tightly attached, ensure the consistency of the cap welding effect, improve the production efficiency and the welding quality, reduce the production cost, and be beneficial to batch production of products.

[0011] The additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be known through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0013] Fig. 1 It is a structural schematic view of a novel laser cap welding equipment;

[0014] Fig. 2 It is a structural schematic view of an electric core workbench;

[0015] Fig. 3 It is a structural schematic view of a workbench.

[0016] As shown in the figure: 1, electric core workbench, 2, workbench, 3, cam connecting rod, 4, transmission turntable frame, 5, fixed table, 6, strong magnetic lifting rod, 7, electric core limiting frame, 8, electric core, 9, cap suction table, 10, moving table, 11, limiting clamping jaw, 12, pressing copper nozzle, 13, air avoidance opening. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figs. 1-3 In the embodiments of the utility model, a novel laser cap welding equipment comprises a battery cell workbench 1 and a work stand 2 arranged on one side of the battery cell workbench 1. A fixed table 5 is vertically arranged on one side of the surface of the battery cell workbench 1. A strong magnetic jacking rod 6 is vertically and movably arranged on one side of the fixed table 5. A battery cell 8 is vertically adsorbed on the top end of the strong magnetic jacking rod 6. The battery cell 8 can be jacked by the strong magnetic jacking rod 6, so as to be combined and welded with a cap in the subsequent process. A moving table 10 is drivingly arranged on one side of the top end of the work stand 2. A compression copper nozzle 12 is arranged on one side of the moving table 10. An emptying port 13 is formed at the bottom end of the compression copper nozzle 12. The moving table 10 drives the compression copper nozzle 12 to move to the top end of the battery cell 8 and clamps the end cover at the top end of the battery cell 8 through the emptying port 13, so that the end cover is limited on the battery cell 8 and the shell opening is prevented from being deformed, so as to be welded between the battery cell 8 and the end cover in the subsequent process.

[0019] A transmission turntable frame 4 is vertically and self-rotatably arranged at the middle position of the battery cell workbench 1. Cap adsorption tables 9 adsorbing caps are vertically and circumferentially arranged on the side surface of the top end of the transmission turntable frame 4. The cap adsorption tables 9 and the work stand 2 are aligned with each other, and the transmission turntable frame 4 is located on the side surface of the fixed table 5. The cap adsorption tables 9 adsorbing caps are rotated to the top end of the battery cell 8 by the transmission turntable frame 4, so as to be welded between the battery cell 8 and the cap in the subsequent process.

[0020] The strong magnetic jacking rod 6 is provided with a battery cell limiting frame 7. The battery cell limiting frame 7 is vertically located on the side surface of the top end of the strong magnetic jacking rod 6. The battery cell 8 is vertically clamped on the side surface of the battery cell limiting frame 7. The strong magnetic jacking rod 6 and the battery cell limiting frame 7 are in the same moving direction. The battery cell 8 is limited by the battery cell limiting frame 7.

[0021] A limiting clamp jaw 11 is movably arranged on one side of the moving table 10. The limiting clamp jaw 11 is transversely located at the top end of the work stand 2. The limiting clamp jaw 11 moves horizontally on the work stand 2. When the limiting clamp jaw 11 moves on one side of the moving table 10 and moves to one side of the battery cell 8, the battery cell 8 clamped on the battery cell limiting frame 7 is further clamped by the limiting clamp jaw 11.

[0022] The cam connecting rod 3 is movably arranged in the work frame 2 and is movably and drivingly connected between the mobile platform 10 and the limiting clamping jaw 11, so as to drive the mobile platform 10 and the limiting clamping jaw 11 to move on the work frame 2 through the cam connecting rod 3.

[0023] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced in the present application.

Claims

1. A novel laser cap welding apparatus characterized by, The utility model provides a kind of battery cell workbench and the work frame of being arranged in the one side of battery cell workbench, the surface of battery cell workbench one side is vertically provided with fixed platform, and the one side of fixed platform is vertically moved and provided with strong magnetic jacking rod, and the top end of strong magnetic jacking rod is vertically adsorbed with battery cell, and then battery cell can be jacked by strong magnetic jacking rod, so that subsequent battery cell and cap are combined and welded, the one side of the top of workbench is driven and is provided with moving platform, and the one side of moving platform is provided with compression copper nozzle, and the bottom end of compression copper nozzle is formed with air-avoiding mouth, and then moving platform drives compression copper nozzle to move to the top of battery cell and the end cover on the top of battery cell is clamped by air-avoiding mouth, so that end cover is fixed on battery cell and prevent shell mouth from deforming, so that subsequent welding between battery cell and end cover.

2. A novel laser cap welding apparatus as claimed in claim 1, wherein, The middle position of the battery cell workbench is vertically self-rotatingly provided with a transmission turntable frame, and the top of the transmission turntable frame is vertically surrounded by a cap suction table that suctions the cap.

3. A novel laser cap welding apparatus as claimed in claim 2, wherein, The strong magnetic jacking rod is provided with a battery cell limiting frame, and the battery cell limiting frame is vertically located on the side of the top of the strong magnetic jacking rod, and the battery cell is vertically clamped on the side of the battery cell limiting frame and moves in the same direction between the strong magnetic jacking rod and the battery cell limiting frame.

4. A novel laser cap welding apparatus as claimed in claim 1, wherein, The one side of the moving platform is movably provided with a limiting clamp, and the limiting clamp is transversely located on the top of the work frame, and the limiting clamp moves horizontally on the workbench.

5. A novel laser cap welding apparatus as claimed in claim 4, wherein, The moving platform and the limiting clamp are respectively provided with a cam link between them and the work frame, and the cam link is movably arranged inside the work frame, and the cam link is movably and drivingly connected between the moving platform and the limiting clamp.