Welding device for pole and tab of lithium battery

Abstract

The welding device comprises a working table, a laser welding machine body is arranged on one side of the working table, a supporting frame is fixedly connected to the working table, a carrying plate is rotatably connected to the inner side of the supporting frame, an inserting groove is formed in the top of the carrying plate, an electromagnet is fixedly connected to the interior of the inserting groove, and the electromagnet is fixedly connected to the inner side of the supporting frame. A servo motor is installed on one side of the supporting frame, one end of a servo motor shaft is connected with one end of the carrying plate, a limiting plate is connected to the top of the carrying plate in an adsorption mode, limiting columns are arranged at the bottom of the limiting plate, and the limiting columns are located on the two sides of the ejector rod. Two groups of ejector rods are arranged relative to the bottom of the limiting plate, the ejector rods are arranged at the bottom of the limiting plate, and lithium battery pole columns and pole lugs are clamped between the ejector rods and the carrying plate. The device can be used for automatically fixing the pole and the tab of the lithium battery and automatically adjusting the welding angle at the same time, so that the welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, specifically to a welding device for lithium battery terminals and tabs. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable.

[0003] In the manufacturing process of lithium batteries, the connection between the terminals and tabs is a crucial step, directly affecting the battery's electrical performance and safety. During the welding process, some products require the use of handheld laser welding machines. However, the welding process requires workers to manually press and fix the terminals and tabs before welding, resulting in low welding efficiency. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a welding device for lithium battery terminals and tabs, so as to solve the problem of low efficiency caused by manual pressing during the welding process of terminals and tabs as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding device for lithium battery terminals and tabs, comprising a worktable, a laser welding machine body disposed on one side of the worktable, a support frame fixedly connected to the worktable, a carrier plate rotatably connected to the inner side of the support frame, a groove provided on the carrier plate, a servo motor mounted on one side of the support frame, one end of the servo motor shaft connected to one end of the carrier plate, a limiting plate adsorbed and connected to the top of the carrier plate, a top rod disposed at the bottom of the limiting plate, and a lithium battery terminal and tab clamped between the top rod and the carrier plate.

[0006] Preferably, the bottom of the limiting plate is provided with limiting posts, which are located on both sides of the top rod.

[0007] Preferably, the top of the carrier plate has a slot, an electromagnet is fixedly connected inside the slot, and a limiting post is inserted inside the slot, with the electromagnet and the limiting post being magnetically attracted to each other.

[0008] Preferably, the top rods are provided in two sets about the bottom of the limiting plate, and each set is distributed horizontally at equal intervals about the bottom of the limiting plate.

[0009] Preferably, a handheld welding gun is connected to the laser welding machine body, and the handheld welding gun is fixed to one end of the fixed frame by a buckle.

[0010] Preferably, a fixed frame is fixedly connected to the bottom of the workbench, a purification component is provided on the fixed frame, and a through hole is provided on the fixed frame.

[0011] Preferably, the purification assembly includes a housing fixed to the top of the mounting frame, and a first filter, an exhaust fan, an activated carbon filter plate, and a second filter are fixedly connected inside the housing.

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

[0013] (1) This device can automatically fix the lithium battery terminals and tabs, and automatically adjust the welding angle to improve welding efficiency.

[0014] (2) The device uses an electromagnet to automatically attract and fix the limiting plate on the carrier plate. By placing the lithium battery on the top of the carrier plate and connecting the tab to the terminal of the lithium battery, the top rod of the limiting plate automatically presses and fixes the terminal and tab of the lithium battery, thereby ensuring stability during the welding process and improving welding efficiency.

[0015] (3) This device is equipped with an automatically rotating carrier plate. The rotation of the carrier plate can drive the welding angle to be adjusted, thereby improving the welding efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a welding device for lithium battery terminals and tabs according to the present invention.

[0017] Figure 2 This utility model relates to a welding device for lithium battery terminals and tabs. Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a bottom view of the limiting plate of a welding device for lithium battery terminals and tabs according to this utility model.

[0019] Figure 4 This is a cross-sectional view of the housing of a welding device for lithium battery terminals and tabs according to this utility model.

[0020] In the diagram: 1. Purification component; 101. First filter screen; 102. Exhaust fan; 103. Housing; 104. Activated carbon filter plate; 105. Second filter screen; 2. Fixing frame; 3. Servo motor; 4. Support frame; 5. Workbench; 6. Carrier plate; 7. Limiting plate; 8. Top rod; 9. Handheld welding torch; 10. Laser welding machine body; 11. Limiting column; 12. Electromagnet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a welding device for lithium battery terminals and tabs, including a workbench 5, a laser welding machine body 10 is provided on one side of the workbench 5, a handheld welding gun 9 is connected to the laser welding machine body 10, and the handheld welding gun 9 is fixed to one end of a fixing frame 2 by a buckle; the laser welding machine body 10 and the handheld welding gun 9 of this structure are existing technologies, so they will not be described in detail here; a fixing frame 2 is fixedly connected to the bottom of the workbench 5, a purification component 1 is provided on the fixing frame 2, and a through hole is opened on the fixing frame 2; the purification component 1 includes a box 103 fixed to the top of the fixing frame 2, the box... The body 103 is internally fixedly connected to a first filter 101, an exhaust fan 102, an activated carbon filter plate 104, and a second filter 105. This structure allows the exhaust fan 102 to quickly expel the fumes generated during welding. The activated carbon filter plate 104 filters out some of the harmful gases in the fumes, reducing harm to workers. The top of the body 103 is connected to the outside via a pipe. A support frame 4 is fixedly connected to the workbench 5. A carrier plate 6 is rotatably connected to the inside of the support frame 4. The carrier plate 6 has a groove. A servo motor 3 is installed on one side of the support frame 4. One end of the servo motor 3 shaft is connected to... One end of the carrier plate 6 is connected, and a limiting plate 7 is adsorbed and connected to the top of the carrier plate 6. A limiting post 11 is provided at the bottom of the limiting plate 7, located on both sides of the top rod 8. This structure improves the stability of the connection between the limiting plate 7 and the carrier plate 6 through the limiting post 11. A slot is provided at the top of the carrier plate 6, and an electromagnet 12 is fixedly connected inside the slot. The limiting post 11 is inserted into the slot, and the electromagnet 12 and the limiting post 11 are magnetically adsorbed and connected. This structure allows the limiting plate 7 to limit the tabs and lithium battery terminals on the carrier plate 6 through the adsorption of the electromagnet 12 and the limiting post 11, thereby ensuring stability during the welding process. Two sets of rods 8 are provided at the bottom of the limiting plate 7, with each set distributed horizontally at equal intervals at the bottom of the limiting plate 7; the top rods 8 of this structure can press the tabs and lithium battery terminals, so that the tabs and lithium battery terminals fit tightly to ensure the welding effect; the bottom of the limiting plate 7 is provided with top rods 8, which clamp the lithium battery terminals and tabs between the top rods 8 and the carrier plate 6; the groove on the top of the carrier plate 6 of this device is used to place the lithium battery; the carrier plate 6 can be driven to rotate automatically by the servo motor 3, which facilitates the adjustment of the welding angle during the welding process and improves the welding efficiency; during the welding process, the handheld welding gun 9 works between the limiting plate 7 and the carrier plate 6.

[0023] Working principle: When using this lithium battery terminal and tab welding device, first place the lithium battery terminal into the groove at the top of the carrier plate 6, then place the tab on the terminal at the top of the lithium battery terminal, then connect the limiting plate 7 to the carrier plate 6, insert the limiting post 11 at the bottom of the limiting plate 7 into the top of the carrier plate 6 and fix it with the electromagnet 12, at the same time, the top rod 8 presses on the lithium battery terminal and tab to fix the lithium battery terminal and tab, then the operator holds the handheld welding gun 9 to weld. During the welding process, the servo motor 3 drives the carrier plate 6 to rotate, so that the angle of the lithium battery terminal and tab on the carrier plate 6 can be adjusted to improve the welding efficiency.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for lithium battery terminals and tabs, comprising a worktable (5), wherein a laser welding machine body (10) is provided on one side of the worktable (5), characterized in that: A support frame (4) is fixedly connected to the workbench (5). A carrier plate (6) is rotatably connected to the inner side of the support frame (4). A groove is provided on the carrier plate (6). A servo motor (3) is installed on one side of the support frame (4). One end of the shaft of the servo motor (3) is connected to one end of the carrier plate (6). A limiting plate (7) is adsorbed and connected to the top of the carrier plate (6). A top rod (8) is provided at the bottom of the limiting plate (7). A lithium battery terminal and a tab are clamped between the top rod (8) and the carrier plate (6).

2. The welding device for lithium battery terminals and tabs according to claim 1, characterized in that: The bottom of the limiting plate (7) is provided with limiting posts (11), which are located on both sides of the top rod (8).

3. The welding device for lithium battery terminals and tabs according to claim 1, characterized in that: The top of the carrier plate (6) has a slot, an electromagnet (12) is fixedly connected inside the slot, and a limiting post (11) is inserted inside the slot. The electromagnet (12) and the limiting post (11) are magnetically attracted to each other.

4. The welding device for lithium battery terminals and tabs according to claim 1, characterized in that: The top rod (8) is provided in two sets about the bottom of the limiting plate (7), and each set is distributed horizontally at equal intervals about the bottom of the limiting plate (7).

5. The welding device for lithium battery terminals and tabs according to claim 1, characterized in that: A handheld welding gun (9) is connected to the laser welding machine body (10), and the handheld welding gun (9) is fixed to one end of the fixing frame (2) by a buckle.

6. The welding device for lithium battery terminals and tabs according to claim 1, characterized in that: The bottom of the workbench (5) is fixedly connected to a frame (2), and a purification component (1) is provided on the frame (2). The frame (2) has through holes.

7. The welding device for lithium battery terminals and tabs according to claim 6, characterized in that: The purification component (1) includes a housing (103) fixed to the top of the mounting bracket (2), and a first filter screen (101), an exhaust fan (102), an activated carbon filter plate (104), and a second filter screen (105) are fixedly connected inside the housing (103).

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