A welding device for assembling large cylindrical batteries

Abstract

This utility model belongs to the field of large cylindrical battery assembly technology and discloses a welding device for assembling large cylindrical batteries. It includes at least three welding positions, a first conveyor line, a short-circuit test position, and a second conveyor line. The at least three welding positions are designated as a first welding position, a second welding position, and a third welding position. Each welding position is equipped with corresponding welding components for welding different parts of the large cylindrical battery. The first conveyor line is used to transport the current collector and end cap. The short-circuit test position is located on the first conveyor line for short-circuit testing of the welded battery. The second conveyor line is located above the first conveyor line for transporting the battery cells. This utility model, through the arrangement of the first and second conveyor lines and multiple welding positions, can automatically transfer and weld multiple processes, reducing potential damage to the battery during handling, improving welding efficiency, and lowering labor costs.

Description

Technical Field

[0001] This utility model belongs to the field of large cylindrical battery assembly technology, specifically relating to a welding device for assembling large cylindrical batteries. Background Technology

[0002] With the rapid development of the new energy industry, large cylindrical batteries have been widely used in electric vehicles, energy storage systems and other fields due to their advantages such as high energy density and long cycle life.

[0003] In the production of large cylindrical batteries, assembly and welding are crucial steps that directly affect battery performance and safety. Currently, various large cylindrical battery assembly and welding machines exist on the market. These machines typically include multiple welding stations, completing the welding of battery components through automated or semi-automated methods. However, in existing large cylindrical battery assembly and welding machines, the transfer of battery components between different stations requires manual labor or additional conveyor equipment. This not only increases production costs but also poses a potential risk of battery damage due to vibration or collisions during handling, thus affecting battery quality and consistency. Furthermore, an unreasonable station layout can limit the scalability and flexibility of the production line, making it difficult to adapt to the production needs of different battery models. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a large cylindrical battery assembly and welding device, which aims to solve to some extent the problem that in the prior art, the transfer of battery components between different workstations requires manual labor or additional conveying equipment. This not only increases production costs but also causes potential damage to the batteries due to vibration or collision during handling, thus affecting the quality and consistency of the batteries. In addition, an unreasonable workstation layout can limit the scalability and flexibility of the production line, making it difficult to adapt to the production needs of different battery models.

[0005] The technical solution of this utility model is: a large cylindrical battery assembly and welding device, comprising:

[0006] There are at least three welding positions, namely the first welding position, the second welding position and the third welding position. Each welding position is equipped with a corresponding welding component to complete the welding operations of different parts of the large cylindrical battery.

[0007] The first conveyor line is used to transport the collector plate and end cap;

[0008] The short-circuit test position is located on the first conveyor line and is used to test the short circuit of the welded battery.

[0009] The second conveyor line is arranged parallel to and above the first conveyor line and is used for conveying battery cells.

[0010] Preferably, the first welding position includes:

[0011] Three-axis gantry module one, the output end of which is fixedly connected to welding machine one;

[0012] The manifold clamping fixture and the end cap clamping fixture are used to fix the manifold and the end cap for welding, respectively.

[0013] Preferably, the second welding position includes:

[0014] Three-axis gantry module two, the output end of which is fixedly connected to welding machine two:

[0015] Cell fixture 1, used to fix the battery cell:

[0016] The first clamping cell rotation mechanism is used to rotate the cell during the welding process to complete the welding of the positive and negative electrodes.

[0017] Preferably, the third welding position includes:

[0018] Three-axis gantry module three, the output end of which is fixedly connected to welding machine three;

[0019] Cell fixture two, used to fix the cell:

[0020] The second clamping cell rotation mechanism is used to adjust the battery position during the welding process.

[0021] Preferably, it further includes a fourth welding position, which is located on the side of the second conveyor line away from the third welding position.

[0022] Preferably, the fourth welding position includes:

[0023] The output end of the three-axis gantry module four is fixedly connected to a welding machine four, which is used to complete the welding of the battery filling port.

[0024] Cell fixture three is used to fix the cell.

[0025] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0026] In this application, by setting up a first conveyor line and a second conveyor line, and cooperating with multiple welding positions, multiple processes can be automatically transferred and welded, which not only reduces the potential damage to the battery during the handling process, but also improves welding efficiency and reduces labor costs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the first welding position structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the second welding position structure of this utility model;

[0031] Figure 4 This is a schematic diagram of the third welding position structure of this utility model.

[0032] In the attached image:

[0033] 1. First welding position; 11. Three-axis gantry module one; 12. Welding machine one; 13. Collector clamping fixture; 14. End cover clamping fixture; 2. Second welding position; 21. Three-axis gantry module two; 22. Welding machine two; 23. Battery cell fixture one; 24. Battery cell clamping and rotating mechanism one; 3. Third welding position; 31. Three-axis gantry module three; 32. Welding machine three; 33. Battery cell clamping and rotating mechanism two; 34. Battery cell fixture two; 4. First conveyor line; 5. Short circuit test position; 6. Second conveyor line; 7. Fourth welding position; 71. Three-axis gantry module four; 72. Welding machine four; 73. Battery cell fixture three. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] like Figure 1 As shown, a welding device for assembling large cylindrical batteries includes at least three welding positions, a first conveyor line 4, a short-circuit test position 5, and a second conveyor line 6. The at least three welding positions are designated as first welding position 1, second welding position 2, and third welding position 3. Each welding position is equipped with a corresponding welding assembly. The welding machines in each welding assembly are model DGSM-3000W, and the welding heads are model LZD-D30. This device is used to complete welding operations on different parts of the large cylindrical battery.

[0036] The first conveyor line 4 is used to convey the collector plate and the end cover;

[0037] The short-circuit test position 5 is set on the first conveyor line 4 and is used to perform short-circuit tests on the welded battery. The short-circuit test position 5 is set on the first conveyor line 4. After the material is automatically sensed, the probe automatically presses to connect the positive and negative terminals and performs insulation resistance (≥100MΩ) test on the battery cell.

[0038] The second conveyor line 6 is arranged parallel above the first conveyor line 4 and is used for conveying battery cells.

[0039] This application realizes the welding operation of six processes for large cylindrical batteries: welding the current collector to the positive and negative terminals, welding the cover plate to the explosion-proof valve, welding the current collector to the positive and negative terminals of the cell, welding the end cap to the shell, welding the terminal and the cover plate, and welding the liquid injection port.

[0040] like Figure 2 As shown, the first welding position 1 includes a three-axis gantry module 11, a collector plate clamping fixture 13, and an end cap clamping fixture 14. The output end of the three-axis gantry module 11 is fixedly connected to a welding machine 12. The collector plate clamping fixture 13 and the end cap clamping fixture 14 are used to fix the collector plate and the end cap for welding.

[0041] The manual loading of the collector plate and pole into the collector plate clamping fixture 13 is then carried out to the welding head of the welding machine 12 for welding.

[0042] The manual loading of the end cap and explosion-proof valve onto the end cap clamping fixture 14, after the material collection plate and pole are welded, is moved out of the welding position, and the end cap clamping fixture 14 is moved into the welding head of the welding machine 12 for welding; the two fixtures are used alternately.

[0043] like Figure 3 As shown, the second welding position 2 includes a three-axis gantry module 21, a battery cell fixture 23, and a battery cell clamping and rotating mechanism 24. The output end of the three-axis gantry module 21 is fixedly connected to a welding machine 22. The battery cell fixture 23 is used to fix the battery cell. The battery cell clamping and rotating mechanism 24 is used to rotate the battery cell during the welding process to complete the welding of the positive and negative electrodes.

[0044] Manually load the battery cells onto battery cell fixture 123;

[0045] Take the current collector plate with the welded pole and place it on the positive pole of the cell and clamp it. Then send the cell fixture 1 23 to the welding head of the welding machine 2 22 for welding.

[0046] After welding, the clamping and rotating mechanism 24 clamps the battery cell and rotates it 180°. Then, the current collector with the welded electrode is manually placed on the negative electrode of the battery cell and clamped. Finally, it is sent to the welding head of the welding machine 22 for welding.

[0047] like Figure 4As shown, the third welding position 3 includes a three-axis gantry module 31, a battery cell fixture 34, and a battery cell clamping and rotating mechanism 33. The output end of the three-axis gantry module 31 is fixedly connected to a welding machine 32.

[0048] Cell fixture 2 34 is used to fix the cell; cell clamping and rotating mechanism 2 33 is used to adjust the battery position during the welding process.

[0049] Automatic short-circuit testing of battery cells on the conveyor line;

[0050] After the battery cell is tested, the aluminum shell and battery cell are manually installed on the battery cell fixture 2 34. After the battery cell is installed, the end cap is installed. After installation, the battery cell fixture 2 34 is sent to the welding head of the welding machine 3 32 to weld the positive end cap and then weld the negative end cap.

[0051] like Figure 1 As shown, a large cylindrical battery assembly welding device further includes a fourth welding position 7, which is located on the side of the second conveyor line 6 away from the third welding position 3.

[0052] The fourth welding position 7 includes a three-axis gantry module 4 71 and a cell fixture 3 73. The output end of the three-axis gantry module 4 71 is fixedly connected to a welding machine 4 72 for welding the battery electrolyte filling port. The cell fixture 3 73 is used to fix the battery cell. The electrolyte-filled battery cell is loaded onto the cell fixture 3 73, then sealed, and then conveyed from the cell fixture 3 73 to the welding head of the welding machine 4 72 for welding.

[0053] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for assembling large cylindrical batteries, characterized in that, include: There are at least three welding positions, namely the first welding position (1), the second welding position (2) and the third welding position (3), and each welding position is equipped with a corresponding welding component to complete the welding operation of different parts of the large cylindrical battery. The first conveyor line (4) is used to convey the collector plate and the end cover; A short-circuit test position (5) is set on the first conveyor line (4) and is used to perform a short-circuit test on the welded battery. The second conveyor line (6) is arranged parallel above the first conveyor line (4) and is used for conveying battery cells.

2. The large cylindrical battery assembly and welding device as described in claim 1, characterized in that, The first welding position (1) includes: Three-axis gantry module one (11), the output end of which is fixedly connected to welding machine one (12); The collector plate clamping fixture (13) and the end cap clamping fixture (14) are used to fix the collector plate and the end cap for welding, respectively.

3. The large cylindrical battery assembly and welding device as described in claim 1, characterized in that, The second welding position (2) includes: Three-axis gantry module two (21), the output end of which is fixedly connected to welding machine two (22): Cell fixture 1 (23), used to fix the cell: The clamping cell rotation mechanism (24) is used to rotate the cell during the welding process to complete the welding of the positive and negative electrodes.

4. The large cylindrical battery assembly and welding device as described in claim 1, characterized in that, The third welding position (3) includes: Three-axis gantry module three (31), the output end of which is fixedly connected to welding machine three (32); Cell fixture 2 (34) is used to fix the cell: The second clamping cell rotation mechanism (33) is used to adjust the battery position during the welding process.

5. The large cylindrical battery assembly and welding apparatus as described in claim 1, characterized in that, It also includes a fourth welding position (7), which is located on the side of the second conveyor line (6) away from the third welding position (3).

6. The large cylindrical battery assembly and welding apparatus as described in claim 5, characterized in that, The fourth welding position (7) includes: Three-axis gantry module four (71), the output end of which is fixedly connected to welding machine four (72) for completing the welding of battery filling port; Battery cell fixture 3 (73) is used to fix the battery cell.

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