Battery pack electric welding device

Abstract

The utility model discloses a battery pack electric welding device, which belongs to the technical field of battery pack production and comprises an electric welding table and a welding gun positioned on the electric welding table, upright posts are welded at four corners of the top wall of the electric welding table, an upper beam plate is welded on the four upright posts, an air cylinder is mounted on the upper beam plate, and a conveying rod is connected below the air cylinder. An object placing plate is welded to the bottom of the conveying rod, a first servo motor is horizontally installed on one side wall of the object placing plate, an output shaft of the first servo motor is coaxially connected with a screw rod, the screw rod is sleeved with an upper sliding base in a threaded mode, a bottom groove is formed in the bottom wall of the object placing plate, and the upper sliding base is attached to the top wall of the bottom groove; and the screw rod can drive the upper sliding seat to translate in the bottom groove during operation. According to the electric welding device for the battery pack, the position of the welding gun can be flexibly adjusted, the welding gun moves to all positions below the welding gun to conduct electric welding work of positive and negative electrodes of the battery pack, and therefore the electric welding device adapts to positive and negative electrode welding work of battery packs of different specifications.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery pack production, and in particular relates to a battery pack electric welding device. Background Art

[0002] A battery pack is a whole composed of multiple batteries, which is generally used to power electric vehicles, drones, mobile power supplies and other devices. Battery packs can be divided into lead-acid battery packs, lithium battery packs and ternary lithium battery packs. Battery packs are different from ordinary batteries. They have higher energy storage density, longer life and stronger output power. Therefore, in certain specific occasions, battery packs are a better choice of energy source.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in this technology: the production process of the battery pack involves welding of its positive and negative electrodes. The current welding device is usually more "mechanical" in adjusting and changing the position of the welding gun, and basically can only be simply raised and lowered. If the horizontal position needs to be changed, it is necessary to manually adjust the welding gun, which is not convenient for adapting to the welding work of various specifications of battery packs (different sizes).

[0004] To this end, we propose a battery pack welding device to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a battery pack welding device, so that the position of the welding gun can be flexibly adjusted and moved to various locations below it to perform welding work on the positive and negative electrodes of the battery pack, thereby adapting to the welding work of the positive and negative electrodes of battery packs of different specifications and effectively solving the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A battery pack welding device comprises a welding table and a welding gun on the welding table, wherein four columns are welded at the four corners of the top wall of the welding table, and upper beams are welded on the four columns, wherein a cylinder is installed on the upper beam, a transmission rod is connected below the cylinder, a storage plate is welded at the bottom of the transmission rod, a first servo motor is horizontally installed on one side wall of the storage plate, wherein the output shaft of the first servo motor is coaxially connected to a screw rod, and an upper slide seat is threadedly sleeved and installed on the screw rod;

[0008] A bottom groove is formed on the bottom wall of the storage plate, and the upper slide is fitted with the top wall of the bottom groove, so that the upper slide can be driven to translate in the bottom groove when the screw is running, and a bracket in the shape of a U is welded to the bottom of the upper slide, and a second servo motor is vertically installed on the inner side of the bracket, wherein the output shaft of the second servo motor is coaxially connected to a mounting plate, one side of the mounting plate extends horizontally to the outside, and the welding gun is installed on the bottom wall of the mounting plate away from the second servo motor.

[0009] As a preferred embodiment, the transmission rod is vertically arranged and connected to the bottom wall of the upper beam plate, so that the structural stability of the transmission rod is guaranteed and the transmission rod can be normally extended and retracted.

[0010] As a preferred implementation scheme, the screw is horizontally arranged in the bottom groove, and both ends of the screw are rotatably connected to the storage plate; so that the screw can operate stably under the drive of the first servo motor, and the first servo motor needs to be powered by external power facilities.

[0011] As a preferred embodiment, the inner cavity of the welding station is formed on its top wall, and movable grooves are opened on both sides of the inner cavity of the welding station, and electric telescopic rods are installed on the opposite sides of the two movable grooves; the two electric telescopic rods are both arranged horizontally.

[0012] As a preferred embodiment, a splint is fixedly welded on the opposite sides of the two electric telescopic rods, one end of the splint is located in the movable groove and fits against the inner wall of the movable groove, and the other end extends into the inner cavity of the welding table and is U-shaped; thereby, the U-shaped structure of the splint is used to fix the three sides of the battery pack.

[0013] As a preferred embodiment, U-shaped gaskets are fixedly bonded to the opposite sides of the two clamping plates; the gaskets can be made of rubber.

[0014] In summary, the technical effects and advantages of the utility model are as follows:

[0015] The battery pack welding device, through the coordinated use of the first servo motor and the second servo motor, allows the position of the welding gun to be translated and flipped, so that the position of the welding gun can be flexibly adjusted and moved to various locations below it to perform welding work on the positive and negative electrodes of the battery pack, thereby adapting to the welding work of the positive and negative electrodes of battery packs of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is a partial cross-sectional view of the utility model;

[0019] Figure 4 It is a schematic diagram of the partial structure below the upper beam plate of the utility model.

[0020] In the figure: 1. welding table; 2. column; 3. upper beam plate; 4. cylinder; 5. transmission rod; 6. storage plate; 7. first servo motor; 8. bottom groove; 9. screw rod; 10. upper slide seat; 11. bracket; 12. second servo motor; 13. mounting plate; 14. welding gun; 15. movable groove; 16. electric telescopic rod; 17. clamping plate; 18. gasket. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 4 A battery pack welding device comprises a welding station 1 and a welding gun 14 located on the welding station 1, columns 2 are welded at four corners of the top wall of the welding station 1, and upper beams 3 are welded on the four columns 2;

[0023] A cylinder 4 is installed on the upper beam plate 3, and a transmission rod 5 is connected below the cylinder 4. The transmission rod 5 is vertically arranged and connected to the bottom wall of the upper beam plate 3, so that the structural stability of the transmission rod 5 is guaranteed and the transmission rod 5 can be normally extended and retracted. A storage plate 6 is welded at the bottom of the transmission rod 5, and a first servo motor 7 is horizontally installed on one side wall of the storage plate 6, wherein the output shaft of the first servo motor 7 is coaxially connected with a screw rod 9, the screw rod 9 is horizontally arranged in the bottom groove 8, and both ends of the screw rod 9 are rotatably connected to the storage plate 6, so that the screw rod 9 can stably operate under the drive of the first servo motor 7, and the first servo motor 7 needs to be powered by external power facilities, and an upper slide seat 10 is threadedly sleeved and installed on the screw rod 9;

[0024] A bottom groove 8 is formed on the bottom wall of the storage plate 6, and an upper slide 10 is fitted with the top wall of the bottom groove 8, so that the screw 9 can drive the upper slide 10 to translate in the bottom groove 8 when it is running. A bracket 11 in the shape of a square is welded on the bottom of the upper slide 10, and a second servo motor 12 is vertically installed on the inner side of the bracket 11, wherein the output shaft of the second servo motor 12 is coaxially connected to a mounting plate 13, one side of the mounting plate 13 extends horizontally to the outside, and a welding gun 14 is installed on the bottom wall of the mounting plate 13 away from the second servo motor 12;

[0025] The inner cavity of the welding station 1 is formed on its top wall, and movable grooves 15 are provided on both sides of the inner cavity of the welding station 1. Electric telescopic rods 16 are installed on the opposite sides of the two movable grooves 15. The two electric telescopic rods 16 are arranged horizontally. Clamps 17 are fixedly welded on the opposite sides of the two electric telescopic rods 16. One end of the clamp 17 is located in the movable groove 15 and fits with the inner wall of the movable groove 15, and the other end thereof extends into the inner cavity of the welding station 1 and is U-shaped, so that the U-shaped structure of the clamp 17 is used to fix the three sides of the battery pack, and U-shaped gaskets 18 are fixedly bonded on the opposite sides of the two clamps 17. The gasket 18 can be made of rubber material.

[0026] The battery pack welding device: during operation, the battery pack to be welded is first placed in the inner cavity of the welding table 1, and the two electric telescopic rods 16 are driven to extend so that the two clamps 17 are close to each other, and finally the gasket 18 on the clamp 17 is used to contact the battery pack, so as to clamp and fix it; the second servo motor 12 is driven to drive the mounting plate 13 and the welding gun 14 to flip, so that the welding gun 14 can flip within a certain range, and at the same time, the second servo motor 12 cooperates with the first servo motor 7 to operate simultaneously, and the first servo motor 7 can drive the screw 9 to operate when it is running, so that the upper slide 10 drives the bracket 11, the second servo motor 12 and the welding gun 14 below it to translate, and finally the welding gun 14 is moved to the top of the positive and negative electrodes of the battery pack to be welded, at this time, the driving cylinder 4 is driven to drive the transmission rod 5 to extend, so that the welding gun 14 sinks to perform electric welding, and after welding is completed, the welding gun 14 returns to its original position, and then the two electric telescopic rods 16 are retracted to release the fixation of the battery pack, so as to take out the battery pack.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery pack welding device, comprising a welding station (1) and a welding gun (14) located on the welding station (1), characterized in that: The four corners of the top wall of the welding table (1) are welded with columns (2), and the four columns (2) are welded with upper beams (3), wherein a cylinder (4) is installed on the upper beam (3), a transmission rod (5) is connected below the cylinder (4), a storage plate (6) is welded at the bottom of the transmission rod (5), a first servo motor (7) is horizontally installed on one side wall of the storage plate (6), wherein the output shaft of the first servo motor (7) is coaxially connected with a screw rod (9), and an upper slide seat (10) is installed on the screw rod (9) in a threaded sleeve; The bottom wall of the storage plate (6) is formed with a bottom groove (8), the upper slide seat (10) is in contact with the top wall of the bottom groove (8), a bracket (11) in the shape of a square is welded to the bottom of the upper slide seat (10), a second servo motor (12) is vertically mounted inside the bracket (11), wherein the output shaft of the second servo motor (12) is coaxially connected to a mounting plate (13), one side of the mounting plate (13) extends horizontally toward the outside, and the welding gun (14) is mounted on the bottom wall of the mounting plate (13) away from the second servo motor (12).

2. A battery pack welding device according to claim 1, characterized in that: The transmission rod (5) is vertically arranged and connected to the bottom wall of the upper beam plate (3).

3. A battery pack welding device according to claim 1, characterized in that: The screw rod (9) is horizontally arranged in the bottom groove (8), and both ends of the screw rod (9) are rotatably connected to the storage plate (6).

4. A battery pack welding device according to claim 1, characterized in that: The inner cavity of the welding table (1) is formed on the top wall thereof, and movable grooves (15) are provided on both sides of the inner cavity of the welding table (1), and electric telescopic rods (16) are installed on the opposite sides of the two movable grooves (15).

5. A battery pack welding device according to claim 4, characterized in that: A clamping plate (17) is fixedly welded on one side of the two electric telescopic rods (16) facing each other. One end of the clamping plate (17) is located in the movable groove (15) and fits against the inner wall of the movable groove (15), and the other end thereof extends into the inner cavity of the welding table (1) and is U-shaped.

6. A battery pack welding device according to claim 5, characterized in that: A U-shaped gasket (18) is fixedly bonded to the opposite sides of the two clamping plates (17).

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