Battery cell tab welding device

Abstract

The utility model discloses a battery cell tab welding device, and relates to the technical field of battery cell tab processing, the battery cell tab welding device comprises a welding base, the top of the welding base is provided with a guide groove, the top of the guide groove is slidably connected with a moving plate, and one side of the moving plate is provided with a positioning mechanism. The positioning plate is slidably connected with the welding base, the placement position of the battery cell can be preliminarily limited through the limiting block, one side of the battery cell is limited again through the positioning plate, displacement of the battery cell during welding is reduced, and the welding missing phenomenon is avoided; the bottom of the protective cover is clamped with the limiting block, the bottom of the protective cover can be supported through the limiting block, and the top of the battery cell can be wrapped by the protective cover; and the movable plate can be driven to move through meshing of the second gear and the rack, the distance between the tabs and the battery cell is changed, the tabs make stable contact with the battery cell, and therefore welding errors are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core tab processing, in particular to a battery core tab welding device. Background Art

[0002] The battery has positive and negative electrodes, and the tabs are metal conductors that lead the positive and negative electrodes out of the battery cell.

[0003] The ears at the positive and negative poles of the battery are the contact points during charging and discharging.

[0004] For example, Chinese patent CN221210377U discloses a battery cell tab welding device, including a bottom block and a

[0005] The fixing mechanism includes a fixing mechanism for fixing multiple battery cell tabs, and the fixing mechanism is installed above the bottom block; fixing

[0006] The mechanism includes a support plate and a fixing assembly, wherein the fixing assembly is installed above the support plate and includes a fixing

[0007] Box, fixed plate, arc plate, motor, turntable, rotating rod, movable frame, movable rod, connecting rod, movable plate,

[0008] The fixed plate is installed above the fixed box, the arc plate is installed on the side of the fixed box, and the motor is fixed on the front of the arc plate.

[0009] The turntable is fixed at the output end of the motor, the rotating rod is fixed at the rear of the turntable, and the movable frame is set outside the rotating rod.

[0010] The rod is installed on the side of the movable frame, the connecting rod is installed above the movable rod, and the movable plate is installed above the connecting rod.

[0011] In the above patent, although the problem of difficulty in clamping and fixing multiple tabs is solved by using a fixed plate and a movable plate,

[0012] However, there is no limit structure for the battery cells between the fixed plate and the movable plate.

[0013] The plate cannot clamp the tabs and the cells at the same time, and the cells are movable, which can easily cause welding leaks.

[0014] And affect the overall welding effect. Utility Model Content

[0015] The purpose of the utility model is to solve the problem that there is no fixed plate and movable plate between the existing technology.

[0016] The limiting structure of the battery cell is set. It is impossible to clamp the tab and the battery cell at the same time by using the fixed plate and the movable plate.

[0017] The position of the battery cell is movable, which is prone to welding leakage, thus affecting the overall welding effect.

[0018] A battery cell tab welding device.

[0019] In order to achieve the above purpose, the utility model adopts the following technical solutions: a battery core ear welding

[0020] The device comprises a welding base, the top of which is provided with a guide groove, the top of which slides

[0021] A movable plate is connected, and a positioning mechanism is arranged on one side of the movable plate. The positioning mechanism includes a threaded rod,

[0022] The protective cover and the positioning plate, the threaded rod is rotatably connected to a fixed block at one end, and the bottom of the fixed block is connected to the welding

[0023] The base is fixedly connected, the threaded rod is connected to the positioning plate through threads, and the bottom of the positioning plate is connected to the welding

[0024] The protective cover is arranged on one side of the positioning plate, and the bottom of the protective cover is engaged with a

[0025] A limit block, the bottom of which is fixedly connected to the welding base.

[0026] Preferably, the top of the welding base is fixedly connected to an electric push rod, and the top of the electric push rod is fixed

[0027] A connecting frame is connected, and a reinforcing plate is fixedly connected to one side of the connecting frame.

[0028] Preferably, the bottom of the reinforcing plate is fixedly connected to an auxiliary plate, and a

[0029] Welding gun.

[0030] Preferably, a rack is fixedly connected to one side of the movable plate, and a second gear is meshed with one side of the rack.

[0031] The second gear is rotationally connected to the welding base.

[0032] Preferably, one side of the gear 2 is meshed with a gear 1, and the gear 1 rotates with the welding base.

[0033] The top of the gear is fixedly connected to the output shaft of the motor, and the bottom of the motor is fixedly connected to the welding base.

[0034] Fixed connection.

[0035] Preferably, the top of the movable plate is rotatably connected to a second threaded rod, and the second threaded rod is connected to the movable plate by a thread.

[0036] A connecting plate is connected, one side of the connecting plate is fixedly connected to a placement bar, and one side of the placement bar is fixedly connected to

[0037] Extension plate.

[0038] Preferably, the top of the placement bar is overlapped with a limit frame, and the bottom of the limit frame is fixedly connected with a spring.

[0039] A telescopic rod, one end of which is fixedly connected to the placement bar.

[0040] Compared with the prior art, the advantages and positive effects of the utility model are:

[0041] 1. In the utility model, the bottom of the limit block is fixedly connected to the welding base, and the positioning plate is slidably connected to the welding base.

[0042] The limit block can be used to initially define the placement position of the battery cell, and the positioning plate can be used to reposition one side of the battery cell.

[0043] Limiting, reducing the displacement of the battery core during welding, avoiding welding leakage, the bottom of the protective cover is engaged with the limiting block,

[0044] The limit block can be used to support the bottom of the protective cover, and the protective cover can wrap the top of the battery core, thereby reducing the impact of welding on the battery.

[0045] Interference caused by the core.

[0046] 2. In the present invention, the threaded rod 2 is connected to the connecting plate by a threaded connection, and the threaded rod 2 can be used to

[0047] Adjust the height of the connecting plate and the placement bar to change the contact position between the tab and the cell.

[0048] The rack can limit the position of the tab inside the placement bar, and the engagement of the gear 2 and the rack can drive

[0049] The movable plate moves to change the distance between the pole ear and the battery cell, so that the pole ear and the battery cell are in stable contact, thereby reducing welding.

[0050] Error in connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] FIG1 is a schematic diagram of the installation of a welding gun structure of a battery cell tab welding device proposed by the present invention;

[0052] Figure 2 shows the meshing structure of gear 1 and gear 2 of a battery cell tab welding device proposed by the utility model

[0053] Schematic diagram;

[0054] FIG3 is a schematic diagram of the installation of a protective cover structure of a battery cell tab welding device proposed by the present invention;

[0055] FIG. 4 is a schematic diagram of the installation of a fixing block structure of a battery cell tab welding device proposed by the present invention.

[0056] Legend: 1. Reinforcement plate; 2. Electric push rod; 3. Motor; 4. Moving plate; 5. Placement bar;

[0057] 6. Connecting plate; 7. Welding gun; 8. Connecting frame; 9. Threaded rod 1; 10. Welding base; 11. Gear 1;

[0058] 12. Gear 2; 13. Rack; 14. Threaded rod 2; 15. Protective cover; 16. Positioning plate; 17. Limit

[0059] Block; 18, spring telescopic rod; 19, limit frame; 20, fixed block; 21, auxiliary plate. DETAILED DESCRIPTION

[0060] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention,

[0061] The figures and embodiments further illustrate the present invention. It should be noted that, in the absence of conflict,

[0062] The embodiments of the present application and the features in the embodiments may be combined with each other.

[0063] In the following description, many specific details are set forth to facilitate a full understanding of the present invention; however,

[0064] The present invention can also be implemented in other ways than those described herein.

[0065] It is not limited to the specific embodiments of the disclosure below.

[0066] Embodiment 1: Referring to FIG. 1 to FIG. 4 , a battery cell tab welding device includes a welding base 10,

[0067] A guide groove is provided on the top of the welding base 10, and a movable plate 4 is slidably connected to the top of the guide groove.

[0068] A positioning mechanism is provided on the side, the positioning mechanism includes a threaded rod 9, a protective cover 15 and a positioning plate 16, the threaded rod

[0069] A fixed block 20 is rotatably connected to one end of a 9, and the bottom of the fixed block 20 is fixedly connected to the welding base 10, and the thread

[0070] The rod 9 is connected to the positioning plate 16 by threads, and the bottom of the positioning plate 16 is connected to the welding base 10 by sliding.

[0071] The protective cover 15 is arranged on one side of the positioning plate 16, and the bottom of the protective cover 15 is engaged with the limiting block 17.

[0072] The bottom is fixedly connected to the welding base 10, and the top of the welding base 10 is fixedly connected to an electric push rod 2.

[0073] The top of the rod 2 is fixedly connected to a connecting frame 8, one side of the connecting frame 8 is fixedly connected to a reinforcing plate 1, and the bottom of the reinforcing plate 1

[0074] An auxiliary plate 21 is fixedly connected to the auxiliary plate 21, and a welding gun 7 is inserted through the auxiliary plate 21.

[0075] The limiting block 17 can be used to preliminarily define the placement position of the battery cell, and the fixing block 20 can be a threaded rod 9-

[0076] The end is supported to improve the stability of the threaded rod 9 during installation and rotation.

[0077] The positioning plate 16 can be driven to slide on the top of the welding base 10, thereby adjusting the position of the positioning plate 16 and the battery cell.

[0078] To limit the position of one side of the battery cell, reduce the displacement of the battery cell on the top of the welding base 10, and use the limit block 17

[0079] The protective cover 15 can be used to assist in the installation and positioning of the protective cover 15 above the battery cell, thereby using the protective cover 15 to cover the top of the battery cell.

[0080] Wrapping protection, reducing interference with the top of the battery cell during welding, using the connecting frame 8 to realize the electric push rod 2 and the addition

[0081] The connection of the reinforcement plate 1 can drive the connection frame 8 and the reinforcement plate 1 to rise synchronously when the electric push rod 2 extends.

[0082] The bottom of the reinforcing plate 1 is connected to the auxiliary plate 21, and the top of the auxiliary plate 21 can be reinforced by the reinforcing plate 1.

[0083] The auxiliary plate 21 can reinforce the installation of multiple welding guns 7, so that multiple welding guns 7 can be raised synchronously with the reinforcement plate 1.

[0084] The battery cell and the tab are welded during the downward movement.

[0085] Embodiment 2: As shown in FIG. 1 to FIG. 3 , a rack 13 is fixedly connected to one side of the movable plate 4. The rack 13

[0086] One side is meshed with a gear 2 12, and the gear 2 12 is rotatably connected to the welding base 10.

[0087] There is a gear 11 meshing, the gear 11 is rotatably connected with the welding base 10, and the top of the gear 11 is fixed.

[0088] The output shaft of the motor 3 is connected, the bottom of the motor 3 is fixedly connected to the welding base 10, and the top of the moving plate 4 is rotated.

[0089] The threaded rod 14 is connected to the connecting plate 6 by a thread, and one side of the connecting plate 6 is fixed.

[0090] A placement bar 5 is fixedly connected, an extension plate is fixedly connected to one side of the placement bar 5, and the top of the placement bar 5 is overlapped to limit the

[0091] The bottom of the limit frame 19 is fixedly connected with a spring telescopic rod 18, one end of the spring telescopic rod 18 is connected to the placement bar

[0092] 5 Secure the connection.

[0093] The movable plate 4 is connected to the rack 13 to support one side of the rack 13, and the motor 3 can be used to drive the

[0094] The gear 11 rotates inside the welding base 10, thereby driving the gear 11 and the gear 2 12 to mesh with each other.

[0095] The movable gear 12 rotates, and the rotation of the gear 12 drives the rack 13 to move, adjusting the movable plate 4 in

[0096] The position inside the guide groove changes the distance between the placement strip 5 and the battery cell, and the movable plate 4 can be used as the threaded rod 14

[0097] The bottom is supported by the threaded connection between the threaded rod 14 and the connecting plate 6, and the connecting plate 6 and the placement can be changed.

[0098] The height of the strip 5 is used to calibrate the position of the tab, and the extension plate can support the bottom of the tab.

[0099] The placement bar 5 and the limiting frame 19 are connected by a spring telescopic rod 18, which is telescopic.

[0100] The height of the limiting frame 19 on the top of the placement bar 5 is adjusted, and the limiting frame 19 is used to achieve the pressing and limiting of the tabs.

[0101] The use method and working principle of this device: First, place the battery cell around the positioning plate 16 and the limit block 17.

[0102] Then, the two threaded rods 19 are rotated to drive the positioning plate 16 to move toward the side close to the limit block 17.

[0103] Move until one side of the positioning plate 16 contacts the battery cell. At this time, the positioning plate 16 and the limiting block 17 limit the battery cell.

[0104] Then, the threaded rod 14 is rotated to adjust the use height of the placement bar 5 and the connecting plate 6, and the limit frame 19 is moved up.

[0105] When the spring telescopic rod 18 is stretched, the pole ear is placed in the placement cavity of the placement bar 5, and the limiting frame 19 is released.

[0106] The limiting frame 19 is overlapped on the placement bar 5, and the bottom of the limiting frame 19 is pressed above the pole ear, and then the motor 3 is used to

[0107] The drive gear 11 rotates, and the gear 11 meshes with the gear 2 12, and then drives the rack 13 to slide in the guide groove.

[0108] Move the movable plate 4 to the side close to the limit block 17, and at this time, the end of the pole ear is in contact with the welding part of the battery cell.

[0109] Then, the electric push rod 2 is used to drive the connecting frame 8 and the reinforcing plate 1 to move downward, and the welding gun 7 is used to connect the battery core and the pole ear.

[0110] The joints are welded. After welding is completed, the reinforcing plate 1 is moved upward and reset, and then the processed battery cells are taken out.

[0111] The above description is only a preferred embodiment of the present invention, and does not constitute a complete description of the present invention.

[0112] It is not limited to any form, and any technician familiar with the industry may use the above disclosed technical content to

[0113] The equivalent embodiments that are changed or modified into equivalent changes are applied to other fields, but all those that do not depart from the present invention are

[0114] The new technical solution content is based on the technical essence of the utility model to make any simple

[0115] Modifications, equivalent changes and modifications still fall within the protection scope of the technical solution of this utility model.

Claims

1. A battery cell tab welding device, comprising a welding base (10), wherein a guide groove is provided on the top of the welding base (10), and a movable plate (4) is slidably connected to the top of the guide groove, wherein: A positioning mechanism is provided on one side of the movable plate (4), and the positioning mechanism comprises a threaded rod (9), a protective cover (15) and a positioning plate (16); one end of the threaded rod (9) is rotatably connected to a fixed block (20); the bottom of the fixed block (20) is fixedly connected to the welding base (10); the threaded rod (9) is connected to the positioning plate (16) by threads; the bottom of the positioning plate (16) is slidably connected to the welding base (10); the protective cover (15) is provided on one side of the positioning plate (16); the bottom of the protective cover (15) is engaged with a limiting block (17); the bottom of the limiting block (17) is fixedly connected to the welding base (10).

2. The battery cell tab welding device according to claim 1, characterized in that: The top of the welding base (10) is fixedly connected to an electric push rod (2), the top of the electric push rod (2) is fixedly connected to a connecting frame (8), and one side of the connecting frame (8) is fixedly connected to a reinforcing plate (1).

3. The battery cell tab welding device according to claim 2, characterized in that: The bottom of the reinforcement plate (1) is fixedly connected to an auxiliary plate (21), and a welding gun (7) is inserted through the interior of the auxiliary plate (21).

4. The battery cell tab welding device according to claim 1, characterized in that: A rack (13) is fixedly connected to one side of the movable plate (4), a second gear (12) is meshed with one side of the rack (13), and the second gear (12) is rotatably connected to the welding base (10).

5. The battery cell tab welding device according to claim 4, characterized in that: One side of the gear 2 (12) is meshed with the gear 1 (11), the gear 1 (11) is rotationally connected to the welding base (10), the top of the gear 1 (11) is fixedly connected to the output shaft of the motor (3), and the bottom of the motor (3) is fixedly connected to the welding base (10).

6. The battery cell tab welding device according to claim 1, characterized in that: The top of the movable plate (4) is rotatably connected to a second threaded rod (14), the second threaded rod (14) is threadably connected to a connecting plate (6), one side of the connecting plate (6) is fixedly connected to a placement bar (5), and one side of the placement bar (5) is fixedly connected to an extension plate.

7. The battery cell tab welding device according to claim 6, characterized in that: The top of the placement bar (5) is overlapped with a limiting frame (19), the bottom of the limiting frame (19) is fixedly connected with a spring telescopic rod (18), and one end of the spring telescopic rod (18) is fixedly connected to the placement bar (5).

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