Lead welding structure for lithium battery pack production

Abstract

The utility model relates to the technical field of lithium battery packs, in particular to a lead welding structure for lithium battery pack production, which comprises a supporting platform, supporting legs are fixedly connected to the lower surface of the supporting platform, a supporting plate is fixedly connected to the surfaces of the supporting legs, and a control box is arranged on the upper surface of the supporting platform. And a wiring board is arranged on the surface of the control box. The control box and the wiring board are fixedly connected, the wiring board and the connecting line are fixedly connected, the connecting line and the transfer controller are fixedly connected, the transfer controller and the telescopic arm are fixedly connected, the telescopic arm and the welding system are fixedly connected, the welding system and the spot welding gun are fixedly connected, and the welding system and the sliding system are movably connected. The two sets of welding machines can weld the two faces of the lithium battery in the lithium battery box at the same time, the second face does not need to be welded after one face is welded, time is saved, and the production efficiency of the lithium battery pack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery packs, in particular to a wire welding structure for the production of lithium battery packs. Background Technique

[0002] A lithium battery pack refers to a combination of several lithium batteries connected together, which can be divided into series and parallel connections. For a parallel-connected lithium battery pack, it is required that each lithium battery has the same voltage, and the output voltage is equal to the voltage of one lithium battery. A parallel-connected lithium battery pack can provide a stronger current, and there are not many requirements for a series-connected lithium battery pack.

[0003] Lithium batteries are widely used in life and can be seen everywhere. However, in many cases, a single lithium battery can no longer meet people's needs. Therefore, people have invented lithium battery packs, which have more powerful functions and can better meet people's needs. However, during the production process of traditional lithium battery packs, when welding wires, only one-sided welding can be carried out. After welding one side, it needs to be flipped over to weld the second side, which wastes time and results in low production efficiency. At the same time, the battery box used for welding wires needs to be manually held and adjusted by workers, which wastes manpower. Content of the Utility Model

[0004] The purpose of the utility model is to provide a wire welding structure for the production of lithium battery packs, so as to solve the problems that traditional lithium battery packs can only carry out one-sided welding when welding wires during the production process and the battery box used for welding wires needs to be manually held and adjusted by workers as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a wire welding structure for the production of lithium battery packs, including a support platform, the lower surface of the support platform is fixedly connected with support legs, the surface of the support legs is fixedly connected with a support plate, the upper surface of the support platform is provided with a control box, the surface of the control box is provided with a wiring board, the surface of the wiring board is fixedly connected with connecting wires, the upper surface of the support platform is fixedly connected with a fixing plate, the surface of the fixing plate is fixedly connected with a slide rail, a chute is opened on the surface of the slide rail, a transfer controller is slidably connected to the surface of the slide rail, a sliding system is slidably connected to the surface of the slide rail, a telescopic arm is fixedly connected to the surface of the transfer controller, a welding system is fixedly connected to the end of the telescopic arm away from the transfer controller, a spot welding gun is fixedly connected to the surface of the welding system, a cylinder is arranged on the upper surface of the support plate, a lifting rod is movably connected to the surface of the cylinder, a support rod is fixedly connected to the end of the lifting rod away from the cylinder, a placing table is fixedly connected to the end of the support rod away from the lifting rod, a lithium battery box is movably connected to the upper surface of the placing table, a connecting block is fixedly connected to the surface of the placing table, a binding plate is movably connected to the surface of the connecting block, a bolt is movably connected to the surface of the binding plate, and a nut is threadedly connected to the surface of the bolt.

[0006] Preferably, both the support platform and the support plate are in the shape of plates, the support legs are in the shape of long rods, and the four groups of support legs are evenly distributed on the lower surface of the support platform.

[0007] Preferably, there are two groups each of the control box and the wiring board. The wiring board is in the shape of a plate, there are four groups of connecting wires, and both ends of the connecting wires are fixedly connected to the wiring board and the transfer controller respectively.

[0008] Preferably, there are four groups of fixing plates, the fixing plates are in the shape of plates, the slide rails are in the shape of long rods, and both ends of the slide rails are fixedly connected to two groups of fixing plates respectively.

[0009] Preferably, the sliding system slides on the surface of the slide rail through a chute. There are four groups of telescopic arms. One ends of two groups of telescopic arms are respectively fixedly connected to two groups of transfer controllers, and the other ends of the two groups of telescopic arms are both fixedly connected to the welding system. The welding system is movably connected to the sliding system through the telescopic arms, and the spot welding gun is in the shape of a round rod.

[0010] Preferably, both the lifting rod and the support rod are in the shape of round rods. The support rod is connected through the support platform. The placing table is in the shape of a plate, and holes are formed on the surface of the lithium battery box.

[0011] Preferably, the four groups of connecting blocks and binding plates are evenly distributed on the surface of the placing table. The connecting blocks are rotatably connected to the binding plates, and the bolts penetrate through the binding plates.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the fixed connection of the control box and the wiring board, the fixed connection of the wiring board and the connecting wires, the fixed connection of the connecting wires and the transfer controller, the fixed connection of the transfer controller and the telescopic arms, the fixed connection of the telescopic arms and the welding system, the fixed connection of the welding system and the spot welding gun, the movable connection of the welding system and the sliding system, the sliding connection of the sliding system and the slide rail, and the fixed connection of the slide rail and the fixing plate, and the control box and the fixing plate are arranged on the surface of the support platform, the two welding machines can simultaneously weld the two sides of the lithium battery inside the lithium battery box, without the need to turn it over to weld the second side after welding one side, saving time and improving the production efficiency of the lithium battery pack.

[0014] 2. Through the movable connection of the air cylinder and the lifting rod, the fixed connection of the lifting rod and the support rod, the fixed connection of the support rod and the placement table, and the movable connection of the placement table and the lithium battery box, the operation of the air cylinder drives the support rod, the placement table and the lithium battery box to move up and down, so that after a row of lithium batteries inside the lithium battery box is welded, it can be automatically replaced with another row to continue welding, without manual adjustment by workers. Through the fixed connection of the placement table and the connecting block, the movable connection of the connecting block and the binding plate, the movable connection of the binding plate and the bolt, and the threaded connection of the bolt and the nut, before welding, the lithium battery box is placed on the placement table, and the lithium battery box can be bound by the binding plate and fixed with the bolt and the nut at the same time, so that the lithium battery box will not move during the welding process, resulting in inaccurate welding positions, thereby reducing the production rate of unqualified products, and there is no need for workers to hold the lithium battery box manually, reducing the waste of manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a top three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 3 is a partial three-dimensional structural schematic diagram of the welding machine of the present utility model;

[0018] Figure 4 is a partial three-dimensional structural schematic diagram of the lifting device of the present utility model;

[0019] Figure 5 is a partial three-dimensional structural schematic diagram of the binding plate of the present utility model;

[0020] Figure 6 of the present utility model Figure 5 is an enlarged structural schematic diagram of part A in;

[0021] Figure 7 of the present utility model Figure 5 is an enlarged structural schematic diagram of part B in.

[0022] In the figure: 1. Support platform; 2. Support leg; 3. Support plate; 4. Control box; 5. Wiring board; 6. Connecting wire; 7. Fixed plate; 8. Slide rail; 9. Slide groove; 10. Transfer controller; 11. Sliding system; 12. Welding system; 13. Telescopic arm; 14. Spot welding gun; 15. Air cylinder; 16. Lifting rod; 17. Support rod; 18. Placement table; 19. Lithium battery box; 20. Connecting block; 21. Binding plate; 22. Bolt; 23. Nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-7 , an embodiment provided by the present utility model:

[0025] A wire welding structure for lithium battery pack production, including a support platform 1. The lower surface of the support platform 1 is fixedly connected with support legs 2, and the support legs 2 are used to support the support platform 1. The surface of the support legs 2 is fixedly connected with a support plate 3, and the support plate 3 is used to support the entire lifting system. The upper surface of the support platform 1 is provided with a control box 4, and the control box 4 is used to control the welding machine. The surface of the control box 4 is provided with a wiring board 5, and the wiring board 5 is used to connect the connecting wire 6 and at the same time transmit the control signal of the control box 4 to the connecting wire 6. The surface of the wiring board 5 is fixedly connected with the connecting wire 6, and the connecting wire 6 is used to transmit the control signal to the transfer controller 10. The upper surface of the support platform 1 is fixedly connected with a fixing plate 7, and the fixing plate 7 is used to support the slide rail 8. The surface of the fixing plate 7 is fixedly connected with the slide rail 8, and the surface of the slide rail 8 is provided with a chute 9, and the chute 9 is used for the sliding system 11 to slide on the surface of the slide rail 8. The surface of the slide rail 8 is slidably connected with the transfer controller 10, and the surface of the slide rail 8 is slidably connected with the sliding system 11. The sliding system 11 functions to drive the welding system 12 to slide. The surface of the transfer controller 10 is fixedly connected with a telescopic arm 13, and the telescopic arm 13 is used to drive the spot welding gun 14 to extend and retract, facilitating the spot welding gun 14 to weld the lithium battery and the wire. One end of the telescopic arm 13 away from the transfer controller 10 is fixedly connected with a welding system 12, and the surface of the welding system 12 is fixedly connected with a spot welding gun 14. The welding system 12 and the spot welding gun 14 are used to weld the lithium battery and the wire. The upper surface of the support plate 3 is provided with a cylinder 15, and the surface of the cylinder 15 is movably connected with a lifting rod 16. The cylinder 15 and the lifting rod 16 function to drive the placement table 18 and the lithium battery box 19 to move up and down, facilitating the replacement welding of the lithium battery and the wire. One end of the lifting rod 16 away from the cylinder 15 is fixedly connected with a support rod 17, and the support rod 17 is used to connect the lifting rod 16 and the placement table 18. One end of the support rod 17 away from the lifting rod 16 is fixedly connected with the placement table 18, and the placement table 18 is used to place the lithium battery box 19, and at the same time is used to connect the connecting block 20 and the binding plate 21. The upper surface of the placement table 18 is movably connected with the lithium battery box 19, and the lithium battery box 19 is used to place the lithium battery, and at the same time has holes on its surface, facilitating the welding of the lithium battery and the wire inside it. The surface of the placement table 18 is fixedly connected with a connecting block 20, and the surface of the connecting block 20 is movably connected with a binding plate 21. The connecting block 20 and the binding plate 21 form a hinge to bind the lithium battery box 19, preventing the lithium battery box 19 from moving during the welding process, resulting in inaccurate welding positions and forming defective products. The surface of the binding plate 21 is movably connected with a bolt 22, and the surface of the bolt 22 is threadedly connected with a nut 23. The bolt 22 and the nut 23 are used to connect two groups of binding plates 21, thereby fixing the lithium battery box 19. The control box 4, the transfer controller 10, the sliding system 11, the welding system 12, and the cylinder 15 are all existing products and are not the technical protection points of this application, so no more statements will be made here.

[0026] Furthermore, both the support platform 1 and the support plate 3 are plate-shaped. The support plate 3 is used to support the entire lifting system. The support legs 2 are rod-shaped and are evenly distributed in four groups on the lower surface of the support platform 1. The support legs 2 are used to support the support platform 1.

[0027] Furthermore, both the control box 4 and the wiring board 5 are in two groups. The control box 4 is used to control the welding machine. The wiring board 5 is plate-shaped. The connecting wires 6 are in four groups. The two ends of the connecting wires 6 are respectively fixedly connected to the wiring board 5 and the transfer controller 10. The wiring board 5 is used to connect the connecting wires 6 and at the same time transmit the control signal of the control box 4 to the connecting wires 6. The connecting wires 6 are used to transmit the control signal to the transfer controller 10.

[0028] Furthermore, there are four fixing plates 7, and the fixing plates 7 are plate-shaped. The fixing plates 7 are used to support the slide rail 8. The slide rail 8 is rod-shaped. The two ends of the slide rail 8 are respectively fixedly connected to two groups of fixing plates 7. The slide rail 8 is used for the sliding of the sliding system 11 and the welding system 12, so that the spot welding gun 14 can weld the lithium batteries and wires in different positions in the same row on the surface of the lithium battery box 19 during welding.

[0029] Furthermore, the sliding system 11 slides on the surface of the slide rail 8 through the chute 9. The sliding system 11 plays a role in driving the sliding of the welding system 12. There are four telescopic arms 13. One ends of two groups of telescopic arms 13 are respectively fixedly connected to two groups of transfer controllers 10. The telescopic arms 13 are used to drive the telescopic movement of the spot welding gun 14, which is convenient for the spot welding gun 14 to weld the lithium batteries and wires. The other ends of the two groups of telescopic arms 13 are both fixedly connected to the welding system 12. The welding system 12 is movably connected to the sliding system 11 through the telescopic arms 13. The spot welding gun 14 is rod-shaped. The welding system 12 and the spot welding gun 14 are used to weld the lithium batteries and wires. During welding, the two welding machines can simultaneously weld both sides of the lithium batteries inside the lithium battery box 19, without the need to turn it over to weld the second side after welding one side, saving time and improving the production efficiency of the lithium battery pack.

[0030] Furthermore, both the lifting rod 16 and the support rod 17 are rod-shaped. The air cylinder 15 and the lifting rod 16 play a role in driving the placement table 18 and the lithium battery box 19 to move up and down, which is convenient for the replacement welding of the lithium batteries and wires. The support rod 17 is connected through the support platform 1. The placement table 18 is plate-shaped. The surface of the lithium battery box 19 is provided with holes. The lithium battery box 19 is used to place the lithium batteries, and at the same time, the holes provided on its surface are convenient for welding the lithium batteries and wires inside it. The operation of the air cylinder 15 drives the support rod 17, the placement table 18 and the lithium battery box 19 to move up and down, so that after a row of lithium batteries inside the lithium battery box 19 is welded, it can be automatically replaced with another row to continue welding, without manual adjustment by workers.

[0031] Further, the connecting blocks 20 and the binding plates 21 are evenly distributed in four groups on the surface of the placing table 18. The connecting blocks 20 and the binding plates 21 are rotatably connected. The connecting blocks 20 and the binding plates 21 form a hinge for binding the lithium battery box 19, preventing the lithium battery box 19 from moving during the welding process, which may cause inaccurate welding positions and result in defective products. The bolts 22 and the binding plates 21 are connected through them. The bolts 22 and the nuts 23 are used to connect two groups of binding plates 21, thereby fixing the lithium battery box 19.

[0032] Working principle: When producing a lithium battery pack, several lithium batteries are placed inside the lithium battery box 19 and are connected to each other by wires. After closing the lithium battery box 19, the wires are tightly attached to the electrodes of the lithium batteries. The lithium battery box 19 is placed on the placing table fixed. During the process of welding the lithium batteries and the wires, two groups of welding machines can simultaneously weld both sides of the lithium batteries inside the lithium battery box 19, without the need to turn it over to weld the second side after welding one side, saving time and improving the production efficiency of the lithium battery pack. At the same time, the sliding system 11 can drive the welding system 12 and the spot welding gun 14 to slide left and right, enabling it to weld lithium batteries at different positions in a row of holes on the surface of the lithium battery box 19.

[0033] Before welding, place the lithium battery box 19 on the placing table 18, rotate the binding plate 21 to bind the lithium battery box 19, and at the same time rotate the nut 23 to fix it, so that the lithium battery box 19 will not move during the welding process, causing inaccurate welding positions. During the welding process, the cylinder 15 operates to drive the support rod 17, the placing table 18 and the lithium battery box 19 to move up and down, enabling the lithium battery box 19 to automatically change to another row for continuous welding after a row of lithium batteries inside are welded, without manual adjustment by workers.

[0034] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A wire welding structure for lithium battery pack production, comprising a support platform (1), characterized in that: The lower surface of the support platform (1) is fixedly connected with support legs (2), the surface of the support legs (2) is fixedly connected with support plates (3), the upper surface of the support platform (1) is provided with a control box (4), the surface of the control box (4) is provided with a wiring board (5), the surface of the wiring board (5) is fixedly connected with connecting wires (6), the upper surface of the support platform (1) is fixedly connected with fixing plates (7), the surface of the fixing plates (7) is fixedly connected with sliding rails (8), the surface of the sliding rails (8) is provided with sliding grooves (9), the surface of the sliding rails (8) is slidably connected with a transfer controller (10), the surface of the sliding rails (8) is slidably connected with a sliding system (11), the surface of the transfer controller (10) is fixedly connected with a telescopic arm (13), one end of the telescopic arm (13) far away from the transfer controller (10) is fixedly connected with a welding system (12), the surface of the welding system (12) is fixedly connected with a spot welding gun (14), the upper surface of the support plate (3) is provided with a cylinder (15), the surface of the cylinder (15) is movably connected with a lifting rod (16), one end of the lifting rod (16) far away from the cylinder (15) is fixedly connected with a support rod (17), one end of the support rod (17) far away from the lifting rod (16) is fixedly connected with a placing table (18), the upper surface of the placing table (18) is movably connected with a lithium battery box (19), the surface of the placing table (18) is fixedly connected with a connecting block (20), the surface of the connecting block (20) is movably connected with a restraint plate (21), the surface of the restraint plate (21) is movably connected with a bolt (22), and the surface of the bolt (22) is threadedly connected with a nut (23).

2. The wire welding structure for lithium battery pack production according to claim 1, characterized in that: Both the support platform (1) and the support plate (3) are in the shape of plates, the support legs (2) are in the shape of long rods, and the support legs (2) are evenly distributed in four groups on the lower surface of the support platform (1).

3. A wire welding structure for lithium battery pack production according to claim 1, characterized in that: Both the control box (4) and the wiring board (5) are in two groups, the wiring board (5) is in the shape of a plate, the connecting wires (6) are in four groups, and the two ends of the connecting wires (6) are respectively fixedly connected with the wiring board (5) and the transfer controller (10).

4. A wire welding structure for lithium battery pack production according to claim 1, characterized in that: The fixing plates (7) are in four groups, the fixing plates (7) are in the shape of plates, the sliding rails (8) are in the shape of long rods, and the two ends of the sliding rails (8) are respectively fixedly connected with two groups of fixing plates (7).

5. A wire welding structure for lithium battery pack production according to claim 1, characterized in that: The sliding system (11) slides on the surface of the sliding rails (8) through the sliding grooves (9), the telescopic arms (13) are in four groups, one end of two groups of telescopic arms (13) is respectively fixedly connected with two groups of transfer controllers (10), the other ends of the two groups of telescopic arms (13) are both fixedly connected with the welding system (12), the welding system (12) is movably connected with the sliding system (11) through the telescopic arms (13), and the spot welding gun (14) is in the shape of a round rod.

6. A wire welding structure for lithium battery pack production according to claim 1, characterized in that: Both the lifting rod (16) and the support rod (17) are in the shape of round rods, the support rod (17) is connected through the support platform (1), the placing table (18) is in the shape of a plate, and the surface of the lithium battery box (19) is provided with holes.

7. A wire welding structure for lithium battery pack production according to claim 1, characterized in that: The connecting blocks (20) and the binding plates (21) are evenly distributed in four groups on the surface of the placing table (18). The connecting blocks (20) and the binding plates (21) are rotatably connected, and the bolts (22) penetrate through the binding plates (21).

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