Lithium battery cell module welding device

Abstract

The utility model discloses a lithium battery cell module welding device which comprises a rotating table, an air cylinder is installed in the middle of the rotating table, a plurality of welding tables are installed on the table top of the rotating table in the circumferential direction, vertical plates are arranged at the inner ends of the welding tables, and at least two guide holes are formed in the vertical plates. A linkage frame is installed at the upper end of the air cylinder, an extension rod sliding in the guide hole is arranged on the side face of the linkage frame, the extension rod penetrates through the guide hole and then is detachably provided with a movable plate vertically corresponding to the welding table, and a welding head is installed on the movable plate. The lithium battery cell module welding device can be used for welding a plurality of lithium battery cell modules at the same time.

Description

A lithium battery cell module welding device Technical Field

[0001] This utility model relates to the field of welding, specifically to a welding device for lithium battery cell modules. Background Technology

[0002] A lithium battery pack is composed of multiple cell modules, which need to be electrically connected to each other, such as by welding busbars for conduction, and by welding tabs.

[0003] Chinese patent CN222608420U discloses a laser welding fixture, the structure of which is: on the support frame, a welding pressure head or a battery cell module placed on the upper end face of the clamping force digital display mechanism is suspended by a lead screw module and drives it to move downward linearly to clamp the upper surface of the battery cell module, or move upward linearly to detach from the battery cell module. During the welding process, the welding fume is removed by a dust removal mechanism, and the clamping force value is detected and displayed in real time by the clamping force digital display mechanism.

[0004] This laser welding fixture only has one welding station and cannot weld multiple lithium battery cell modules at the same time, so its work efficiency needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a lithium battery cell module welding device that can weld multiple lithium battery cell modules simultaneously.

[0006] To achieve the above objectives, this utility model provides a lithium battery cell module welding device. The lithium battery cell module welding device includes a rotary table, a cylinder installed in the middle of the rotary table, and multiple welding stations installed circumferentially on the table surface. A vertical plate is provided at the inner end of each welding station, and at least two guide holes are provided on the vertical plate. A linkage frame is installed at the upper end of the cylinder, and an extension rod that slides through the guide hole is provided on the side of the linkage frame. After the extension rod passes through the guide hole, a movable plate corresponding vertically to the welding station is detachably installed, and a welding head is installed on the movable plate.

[0007] Preferably, the rotary table includes a chassis and a central shaft fixed to the middle of the chassis. A rotating cylinder is sleeved on the central shaft. Bearings are provided between the upper and lower parts of the rotating cylinder and the central shaft. A platform is fixed to the upper end of the rotating cylinder. A connecting plate is provided at the rear end of the welding table. The connecting plate and the platform are detachably connected by a first bolt. A first gear is sleeved on the rotating cylinder. A motor is mounted on the chassis. A second gear that meshes with the first gear is sleeved on the motor.

[0008] Preferably, the platform has a through hole with a diameter not less than the inner diameter of the rotating cylinder in the middle, a central platform is placed above the through hole, the cylinder is installed in the middle of the central platform, the side of the central platform has a plane that abuts against the connecting plate, the upper end of the plane has a notch, and the rear end of the connecting plate has a pressure plate that presses against the notch.

[0009] Preferably, the upper end face of the central shaft is lower than the upper surface of the platform.

[0010] Preferably, a screw is provided at the upper end of the cylinder shaft of the cylinder, and the linkage frame is sleeved on the screw and locked by a nut, and the multiple extension rods passing through the same vertical plate are parallel.

[0011] Preferably, the outer end of the extension rod is provided with a socket, and the inner end of the movable plate is provided with a plug rod that can be inserted into the socket. After the plug rod is inserted into the socket, it is connected to the extension rod by a second bolt.

[0012] Preferably, the upper surface of the welding station is provided with a positioning groove.

[0013] According to the above technical solution, this utility model provides a lithium battery cell module welding device. The lithium battery cell module welding device includes a rotary table, a cylinder is installed in the middle of the rotary table, and multiple welding stations are installed circumferentially on the table surface of the rotary table. A vertical plate is provided at the inner end of the welding station, and at least two guide holes are provided on the vertical plate. A linkage frame is installed at the upper end of the cylinder, and an extension rod that slides through the guide hole is provided on the side of the linkage frame. After the extension rod passes through the guide hole, a movable plate corresponding vertically to the welding station is detachably installed, and a welding head is installed on the movable plate.

[0014] The usage and benefits of this lithium battery cell module welding device are as follows: When using this device, a rotary table rotates each welding station to the loading position one by one. The lithium battery cell modules to be welded are placed on the welding stations. After all modules are in place, the cylinder retracts, causing multiple movable plates to descend along with the linkage frame. The welding head follows the descent. When the welding head is in the welding position, the movement stops, and welding is performed at the welding position, thus achieving multi-station operation. The number and specific positions of the welding heads are set according to the welding requirements of the lithium battery cell modules. This lithium battery cell module welding device enables the simultaneous welding of multiple lithium battery cell modules, improving welding efficiency.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 is an overall structural diagram of a preferred embodiment of the lithium battery cell module welding device;

[0018] Figure 2 is a top view of a preferred embodiment of the lithium battery cell module welding device;

[0019] Figure 3 is a schematic diagram of the AA cross-sectional structure in Figure 2;

[0020] Figure 4 is a schematic diagram of the lithium battery cell module welding device after one welding station has been removed.

[0021] Explanation of reference numerals in the attached figures

[0022] 1-Chassis; 2-Rotating drum; 3-Center platform; 4-Motor; 5-Vertical plate; 6-Welding station; 7-Positioning groove; 8-Guide hole; 9-Cylinder; 10-Cylinder shaft; 11-Linkage frame; 12-Nut; 13-Screw; 14-Extension rod; 15-Moving plate; 16-Welding head; 17-First bolt; 18-Second gear; 19-First gear; 20-Bearing; 21-Central shaft; 22-Platform; 23-Second bolt; 24-Flat surface; 25-Notch groove; 26-Connecting plate; 27-Pressure plate; 28-Insertion rod. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0024] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as a limitation on the term.

[0025] Referring to the lithium battery cell module welding device shown in Figures 1-4, the lithium battery cell module welding device includes a rotary table, a cylinder 9 is installed in the middle of the rotary table, and multiple welding stations 6 are installed circumferentially on the table surface. A vertical plate 5 is provided at the inner end of the welding station 6, and at least two guide holes 8 are provided on the vertical plate 5. A linkage frame 11 is installed at the upper end of the cylinder 9, and an extension rod 14 that slides through the guide hole 8 is provided on the side of the linkage frame 11. After the extension rod 14 passes through the guide hole 8, a movable plate 15 corresponding vertically to the welding station 6 is detachably installed, and a welding head 16 is installed on the movable plate 15.

[0026] By implementing the above technical solution, when using this lithium battery cell module welding device, each welding station 6 is rotated to the loading position one by one by a rotary table. The lithium battery cell modules to be welded are placed on the welding station 6. After all are in place, the cylinder 9 retracts, and multiple movable plates 15 move down driven by the linkage frame 11. The welding head 16 moves down with it. When the welding head 16 is in the welding position, the movement stops, and welding is performed at the welding position by the welding head 16, thus realizing multi-station operation. The number and specific position of the welding head 16 are set according to the welding requirements of the lithium battery cell module. This lithium battery cell module welding device enables the simultaneous welding of multiple lithium battery cell modules, improving welding efficiency.

[0027] In this embodiment, to further provide a rotary table, the rotary table includes a chassis 1 and a central shaft 21 fixed to the middle of the chassis 1. A rotating cylinder 2 is sleeved on the central shaft 21. Bearings 20 are provided between the upper and lower parts of the rotating cylinder 2 and the central shaft 21. A platform 22 is fixed to the upper end of the rotating cylinder 2. A connecting plate 26 is provided at the rear end of the welding station 6. The connecting plate 26 and the platform 22 are detachably connected by a first bolt 17. A first gear 19 is sleeved on the rotating cylinder 2. A motor 4 is installed on the chassis 1. A second gear 18 meshing with the first gear 19 is sleeved on the motor 4. The rotation of the motor 4 drives the second gear 18 to rotate, which in turn drives the third gear and the rotating cylinder 2 to rotate, further driving the cylinder 9 and the linkage frame 11 to rotate, and the welding station 6 and the vertical plate 5 to rotate synchronously, thereby realizing the switching of the loading station.

[0028] In this embodiment, the platform 22 has a through hole with a diameter not less than the inner diameter of the rotating cylinder 2 in its center. A central platform 3 is placed above the through hole, and the cylinder 9 is installed in the center of the central platform 3. The side of the central platform 3 has a flat surface 24 that abuts against the connecting plate 26. The upper end of the flat surface 24 has a notch 25, and the rear end of the connecting plate 26 has a pressure plate 27 that presses against the notch 25. The central platform 3 is fixed by the contact between the connecting plate 26 and the flat surface 24 and the pressing of the pressure plate 27.

[0029] In this embodiment, the upper surface of the central shaft 21 is lower than the upper surface of the platform 22. This arrangement avoids frictional resistance caused by contact between the central shaft 21 and the central platform 3.

[0030] In this embodiment, a screw 13 is provided at the upper end of the cylinder shaft 10 of the cylinder 9. The linkage frame 11 is sleeved on the screw 13 and locked by a nut 12. The multiple extension rods 14 passing through the same vertical plate 5 are parallel to each other. This arrangement provides a detachable installation method for the linkage frame 11.

[0031] In this embodiment, the outer end of the extension rod 14 is provided with a socket, and the inner end of the movable plate 15 is provided with a plug rod 28 that can be inserted into the socket. After the plug rod 28 is inserted into the socket, it is connected to the extension rod 14 by a second bolt 23. This arrangement provides a detachable connection between the movable plate 15 and the linkage frame 11. After removing the first bolt 17 and the second bolt 23, the welding station 6 and the vertical plate 5 can be disassembled.

[0032] In this embodiment, the upper surface of the welding station 6 is provided with a positioning groove 7. This arrangement provides positioning for the lithium battery cell module to be welded, enabling alignment with the welding position.

[0033] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0034] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0035] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A lithium battery cell module welding device, characterized in that, The lithium battery cell module welding device includes a rotary table, a cylinder (9) is installed in the middle of the rotary table, and multiple welding stations (6) are installed circumferentially on the table surface of the rotary table. A vertical plate (5) is provided at the inner end of the welding station (6). At least two guide holes (8) are provided on the vertical plate (5). A linkage frame (11) is installed at the upper end of the cylinder (9). An extension rod (14) that slides through the guide hole (8) is provided on the side of the linkage frame (11). After the extension rod (14) passes through the guide hole (8), a movable plate (15) that is vertically corresponding to the welding station (6) is detachably installed. A welding head (16) is installed on the movable plate (15).

2. The lithium battery cell module welding device according to claim 1, characterized in that, The rotary table includes a chassis (1) and a central shaft (21) fixed to the middle of the chassis (1). A rotating cylinder (2) is sleeved on the central shaft (21). Bearings (20) are provided between the upper and lower parts of the rotating cylinder (2) and the central shaft (21). A platform (22) is fixed to the upper end of the rotating cylinder (2). A connecting plate (26) is provided at the rear end of the welding station (6). The connecting plate (26) and the platform (22) are detachably connected by a first bolt (17). A first gear (19) is sleeved on the rotating cylinder (2). A motor (4) is installed on the chassis (1). A second gear (18) meshing with the first gear (19) is sleeved on the motor (4).

3. The lithium battery cell module welding apparatus according to claim 2, characterized in that, The platform (22) has a through hole with a diameter not less than the inner diameter of the rotating cylinder (2) in the middle. A central platform (3) is placed above the through hole. The cylinder (9) is installed in the middle of the central platform (3). The side of the central platform (3) has a plane (24) that abuts against the connecting plate (26). The upper end of the plane (24) has a notch (25). The rear end of the connecting plate (26) has a pressure plate (27) that presses against the notch (25).

4. The lithium battery cell module welding apparatus of claim 3, wherein, The upper surface of the central shaft (21) is lower than the upper surface of the platform (22).

5. The lithium battery cell module welding apparatus of claim 1, wherein, The cylinder shaft (10) of the cylinder (9) is provided with a screw (13) at the upper end. The linkage frame (11) is sleeved on the screw (13) and locked by a nut (12). The multiple extension rods (14) passing through the same vertical plate (5) are parallel to each other.

6. The lithium battery cell module welding apparatus according to claim 1, characterized in that, The outer end of the extension rod (14) is provided with a socket, and the inner end of the movable plate (15) is provided with a plug rod (28) that can be inserted into the socket. After the plug rod (28) is inserted into the socket, it is connected to the extension rod (14) by a second bolt (23).

7. The lithium battery cell module welding apparatus according to claim 1, characterized in that, The upper surface of the welding station (6) is provided with a positioning groove (7).

Images