Battery collector plate and pole welding device

Abstract

The utility model relates to the technical field of battery production, in particular to a battery collector plate and pole welding device which comprises a positioning mechanism and a welding mechanism. The welding mechanism comprises a welding seat, a laser platform and a pressing platform; a pressing block is movably arranged on the pressing platform in a lifting manner; a lower through hole is formed in the pressing block in a penetrating manner; a cooling block is arranged at the top of the pressing block; an air cavity is formed between the cooling block and the top surface of the pressing block; an upper through hole is formed in the top of the cooling block in a penetrating manner; and the laser platform is provided with a laser generator. The protective gas is introduced into the gas cavity of the cooling block, so that a product can be protected, meanwhile, welding fume generated by welding can be quickly discharged, welding slag is reduced, and the welding quality is better guaranteed; in addition, under the action of the cooling block, heat generated by welding can be effectively taken away; and secondly, the laser platform and the pressing platform are separated, so that the influence of the vibration of the pressing block on the laser generator can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a battery current collector and electrode welding device. Background Technology

[0002] In the manufacturing of electrical equipment such as new energy batteries and energy storage devices, the reliable connection between the current collector and the terminal is a key factor in ensuring the electrical performance and safety of the equipment. Currently, the industry widely uses laser penetration welding to connect the current collector and the terminal. This process uses a high-energy-density laser beam to penetrate the upper material, melting the lower material and achieving a metallurgical bond between the two. It can complete the welding without damaging the material surface and has advantages such as fast welding speed, high joint strength, and good sealing performance.

[0003] However, laser penetration welding technology has significant drawbacks in actual production. Because laser penetration welding generates a large amount of heat, excessively high local temperatures can easily cause thermal deformation of the welding area and surrounding materials, leading to electrode misalignment and manifold surface warping. This affects the precise assembly of other components in subsequent assembly processes, increasing assembly difficulty and scrap rate. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing a battery current collector and electrode welding device.

[0005] The purpose of this utility model is achieved through the following technical solution: a battery current collector and electrode welding device, including a positioning mechanism and a welding mechanism; the welding mechanism includes a welding seat, a laser platform disposed on the welding seat and a clamping platform disposed on the welding seat;

[0006] The pressing platform is equipped with a pressing block that can be raised and lowered; the pressing block has a through hole at the bottom; the top of the pressing block has a cooling block; an air cavity is formed between the cooling block and the top surface of the pressing block; the top of the cooling block has an through hole at the top; the top of the air cavity communicates with the upper through hole; the bottom of the air cavity communicates with the lower through hole.

[0007] The laser platform is equipped with a laser generator; the laser emitted by the laser generator passes through the upper perforation, the air cavity, and the lower perforation.

[0008] The present invention is further configured such that the pressing platform is provided with a pressing cylinder; the output end of the pressing cylinder is connected to the pressing block.

[0009] The present invention is further configured such that the pressing platform is provided with a slide rail along the height direction; a slider is slidably provided on the slide rail; and the pressing block is connected to the slider.

[0010] The present invention is further configured such that the material of the clamping block is copper.

[0011] The present invention is further configured such that: the side of the pressing block is provided with an air inlet; the side of the cooling block is provided with an air outlet; the air inlet is connected to the lower perforation; and the air outlet is connected to the air chamber.

[0012] The present invention is further configured such that the lower perforation is a funnel-shaped structure with the opening facing upwards.

[0013] The present invention is further configured such that a water cavity is formed between the top surfaces of the cooling block and the pressing block; the top of the cooling block is provided with a water inlet and a water outlet; the water inlet and the water outlet are respectively connected to the water cavity.

[0014] The present invention is further configured such that a sealing ring is provided around the water cavity between the bottom surface of the cooling block and the top surface of the pressing block.

[0015] The present invention is further configured such that the bottom surface of the clamping block has an annular protrusion around the lower through hole.

[0016] The present invention is further configured such that the positioning mechanism includes a positioning seat, a positioning cylinder disposed on the positioning seat, a positioning plate disposed on the output end of the positioning cylinder, a positioning pin disposed on the positioning plate, and a photoelectric detector disposed on the positioning plate.

[0017] The beneficial effects of this utility model are as follows: By introducing protective gas into the air cavity of the cooling block, this utility model can protect the product while quickly expelling the welding fumes generated during welding, reducing the generation of welding slag, and better ensuring welding quality; in addition, the cooling block can effectively remove the heat generated during welding; secondly, by adopting a separate design for the laser platform and the clamping platform, the impact of the clamping block's vibration on the laser generator can be reduced. Attached Figure Description

[0018] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the welding mechanism of this utility model;

[0022] Figure 4This is a structural schematic diagram of the welding mechanism of this utility model from another perspective;

[0023] Figure 5 This is a schematic diagram of the structure of the clamping block and the cooling block of this utility model.

[0024] Figure 6 This is a structural schematic diagram of the cooperation between the clamping block and the cooling block of this utility model from another perspective;

[0025] Figure 7 This is a cross-sectional view of the clamping block and cooling block of this utility model.

[0026] Figure 8 This is a cross-sectional view from another perspective of the cooperation between the clamping block and the cooling block of this utility model;

[0027] The components are as follows: 1. Welding base; 2. Laser platform; 21. Laser generator; 3. Clamping platform; 31. Clamping cylinder; 32. Slide rail; 33. Slider; 4. Clamping block; 41. Lower perforation; 42. Annular protrusion; 5. Cooling block; 51. Upper perforation; 6. Air chamber; 61. Air inlet; 62. Air outlet; 7. Water chamber; 71. Water inlet; 72. Water outlet; 73. Sealing ring; 8. Positioning base; 81. Positioning cylinder; 82. Positioning plate; 83. Positioning pin; 84. Photoelectric detector. Detailed Implementation

[0028] The present invention will be further described in conjunction with the following embodiments.

[0029] Depend on Figures 1 to 8 As can be seen, the battery current collector and electrode welding device described in this embodiment includes a positioning mechanism and a welding mechanism; the welding mechanism includes a welding seat 1, a laser platform 2 disposed on the welding seat 1 and a clamping platform 3 disposed on the welding seat 1;

[0030] The pressing platform 3 is equipped with a pressing block 4 that can be raised and lowered; the pressing block 4 has a through hole 41; the top of the pressing block 4 is equipped with a cooling block 5; an air cavity 6 is formed between the cooling block 5 and the top surface of the pressing block 4; the top of the cooling block 5 has an through hole 51; the top of the air cavity 6 is connected to the upper through hole 51; the bottom of the air cavity 6 is connected to the lower through hole 41.

[0031] The laser platform 2 is equipped with a laser generator 21; the laser emitted by the laser generator 21 passes through the upper perforation 51, the air cavity 6 and the lower perforation 41.

[0032] Specifically, in the battery current collector and terminal welding device described in this embodiment, the battery current collector and terminal are first moved to the bottom of the clamping block 4. Then, the positioning mechanism positions the battery current collector and terminal. Next, the clamping block 4 moves downward so that the bottom of the clamping block 4 is pressed against the connection position of the battery current collector and terminal. Then, the laser generator 21 is activated. The laser emitted by the laser generator 21 passes through the upper through hole 51, the air cavity 6, and the lower through hole 41 to perform laser welding on the battery current collector and terminal. In addition, protective gas is introduced into the air cavity 6 of the cooling block 5, which can protect the product and quickly remove the welding fumes generated during welding, reduce the generation of welding slag, and better ensure the welding quality. In addition, the cooling block 5 can effectively remove the heat generated during welding. Furthermore, by adopting a separate design for the laser platform 2 and the clamping platform 3, the impact of the vibration of the clamping block 4 on the laser generator 21 can be reduced.

[0033] The battery current collector and terminal welding device described in this embodiment includes a clamping platform 3 equipped with a clamping cylinder 31; the output end of the clamping cylinder 31 is connected to a clamping block 4. This arrangement facilitates the driving of the clamping block 4 to move up and down.

[0034] This embodiment describes a battery current collector and terminal welding device. The clamping platform 3 is provided with a slide rail 32 along its height direction; a slider 33 is slidably mounted on the slide rail 32; and the clamping block 4 is connected to the slider 33. This configuration allows the clamping block 4 to stably move up and down.

[0035] In this embodiment, a battery current collector and terminal welding device is described, wherein the clamping block 4 is made of copper. This design effectively conducts the heat generated during welding to the cooling block 5.

[0036] This embodiment describes a battery current collector and terminal welding device. The clamping block 4 has an air inlet 61 on its side; the cooling block 5 has an air outlet 62 on its side; the air inlet 61 communicates with the lower through-hole 41; and the air outlet 62 communicates with the air chamber 6. Specifically, during use, by introducing protective gas into the air inlet 61 and connecting a dust collector to the air outlet 62, welding fumes generated during welding can be quickly discharged, reducing welding slag production and better ensuring welding quality. Simultaneously, the heat generated during welding can also be carried away.

[0037] In this embodiment, a battery current collector and terminal post welding device is described, wherein the lower perforation 41 is a funnel-shaped structure with an upward opening. This design guides the airflow within the air chamber 6, facilitating the removal of welding fumes, reducing slag formation, and better ensuring welding quality. It also helps to dissipate the heat generated during welding.

[0038] This embodiment describes a battery current collector and terminal welding device, in which a water cavity 7 is formed between the top surfaces of the cooling block 5 and the clamping block 4; the top of the cooling block 5 is provided with a water inlet 71 and a water outlet 72; the water inlet 71 and the water outlet 72 are respectively connected to the water cavity 7. Specifically, in this embodiment, through the above-mentioned arrangement, cold water is connected between the water inlet 71 and the water outlet 72, and the heat generated by welding is conducted into the water cavity 7 through the clamping block 4, and then the heat generated by welding is carried away by circulating cold water.

[0039] In this embodiment, a battery current collector and terminal welding device is provided with a sealing ring 73 around the water cavity 7 between the bottom surface of the cooling block 5 and the top surface of the pressing block 4. This arrangement effectively prevents cold water from flowing out of the water cavity 7.

[0040] In the battery current collector and terminal welding device described in this embodiment, the bottom surface of the clamping block 4 has an annular protrusion 42 around the lower through hole 41. This design reduces the contact area between the clamping block 4 and the battery current collector.

[0041] This embodiment describes a battery current collector and terminal post welding device. The positioning mechanism includes a positioning base 8, a positioning cylinder 81 located on the positioning base 8, a positioning plate 82 located at the output end of the positioning cylinder 81, a positioning pin 83 located on the positioning plate 82, and a photoelectric detector 84 located on the positioning plate 82. Specifically, when the battery current collector and terminal post are moved to the bottom of the clamping block 4, the positioning cylinder 81 drives the positioning plate 82 to move downward, causing the positioning pin 83 to insert into the battery current collector and position it. In addition, the photoelectric detector 84 can detect the presence of material before welding to prevent the welding device from being damaged due to the absence of material.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A battery current collector and terminal welding device, characterized in that: It includes a positioning mechanism and a welding mechanism; the welding mechanism includes a welding seat (1), a laser platform (2) disposed on the welding seat (1), and a clamping platform (3) disposed on the welding seat (1); The pressing platform (3) is equipped with a pressing block (4) that moves up and down; the pressing block (4) has a through hole (41); the top of the pressing block (4) is equipped with a cooling block (5); an air cavity (6) is formed between the cooling block (5) and the top surface of the pressing block (4); the top of the cooling block (5) has an through hole (51); the top of the air cavity (6) is connected to the upper through hole (51); the bottom of the air cavity (6) is connected to the lower through hole (41). The laser platform (2) is equipped with a laser generator (21); the laser emitted by the laser generator (21) passes through the upper perforation (51), the air cavity (6) and the lower perforation (41).

2. The battery busbar and post welding device of claim 1, wherein: The pressing platform (3) is equipped with a pressing cylinder (31); the output end of the pressing cylinder (31) is connected to the pressing block (4).

3. The battery bus bar and post welding device of claim 2, wherein: The pressing platform (3) is provided with a slide rail (32) along the height direction; the slide rail (32) is slidably provided with a slider (33); the pressing block (4) is connected to the slider (33).

4. The battery post and collector plate welding apparatus of claim 1 wherein: The material of the clamping block (4) is copper.

5. The battery post and collector welding apparatus of claim 1 wherein: The side of the pressing block (4) is provided with an air inlet (61); the side of the cooling block (5) is provided with an air outlet (62); the air inlet (61) is connected to the lower perforation (41); the air outlet (62) is connected to the air chamber (6).

6. The battery post and collector welding apparatus of claim 1 wherein: The perforation (41) is a funnel-shaped structure with the opening facing upwards.

7. The battery post and collector welding apparatus of claim 1 wherein: A water cavity (7) is formed between the top surface of the cooling block (5) and the pressing block (4); the top of the cooling block (5) is provided with a water inlet (71) and a water outlet (72); the water inlet (71) and the water outlet (72) are respectively connected to the water cavity (7).

8. The battery bus bar and post welding device of claim 7, wherein: A sealing ring (73) is provided around the water cavity (7) between the bottom surface of the cooling block (5) and the top surface of the pressing block (4).

9. The battery post and collector welding apparatus of claim 1 wherein: The bottom surface of the clamping block (4) has an annular protrusion (42) around the lower through hole (41).

10. The battery post welding apparatus of claim 1, wherein: The positioning mechanism includes a positioning seat (8), a positioning cylinder (81) disposed on the positioning seat (8), a positioning plate (82) disposed on the output end of the positioning cylinder (81), a positioning pin (83) disposed on the positioning plate (82), and a photoelectric detector (84) disposed on the positioning plate (82).

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