Automatic spot welding device for multiple tabs or laminations

Abstract

The utility model discloses an automatic spot welding device for multiple tabs or laminations, which comprises a working panel (1), and a working platform (2) is rotatably mounted on the working panel (1); the clamping stations are circumferentially arranged on the working platform (2), and a roll core to be welded is clamped and fixed through the clamping stations; the welding assembly is mounted on the working panel (1), is positioned on one side of the working platform (2), and is used for performing spot welding after a tab is aligned with a roll core; and the clamping manipulator is mounted on one side of the working platform (2), and is used for automatically clamping the cut tabs, placing the tabs at the position of a roll core and automatically welding the tabs. According to the automatic spot welding device for the multiple tabs or the laminations, the cut tabs are automatically clamped and bent through the mechanical arm, the tabs are accurately placed on the surface of a roll core to be welded, and therefore the problems that in the prior art, manual spot welding is low in operation precision, low in efficiency, poor in consistency and the like are effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of battery processing, and particularly relates to an automatic spot welding device for multi-tab or laminated sheets. Background Art

[0002] In the manufacturing process of electronic products such as lithium batteries, the spot welding process of tabs is one of the key steps in battery assembly, directly affecting the electrical performance and safety of the battery. In the prior art, the spot welding of tabs is usually carried out manually. Specifically, the tabs are manually placed on the surface of the core, and then a spot welder is used for welding. This manual spot welding method has the following disadvantages:

[0003] Due to manual operation, it is difficult to ensure the consistency of the position and angle between the tab and the core, and the welding points are prone to instability, affecting the battery performance.

[0004] During the manual spot welding process, each step depends on the proficiency of the worker, and the overall operation efficiency is low, making it difficult to meet the requirements of mass production. Especially for products with high precision and low error requirements, the efficiency is even more insufficient.

[0005] The spot welding process requires the worker to maintain manual operation for a long time, resulting in a large labor intensity. Moreover, being exposed to the welding environment for a long time is likely to cause occupational health problems.

[0006] Due to the non-standardization of manual operation, the welding quality of spot welding is unstable. Factors such as the welding angle, position, and strength of the tabs are affected by humans, resulting in poor consistency between different products, and ultimately may affect the overall performance and lifespan of the battery. Content of the Utility Model

[0007] To solve the above problems, the utility model provides an automatic spot welding device for multi-tab or laminated sheets.

[0008] The utility model is realized through the following technical solutions: An automatic spot welding device for multi-tab or laminated sheets, comprising:

[0009] A working panel, on which a working platform is rotatably installed;

[0010] A plurality of clamping stations, which are arranged in a circular pattern on the working platform, and the cores to be welded are clamped and fixed through the clamping stations;

[0011] A welding assembly, which is installed on the working panel and located on one side of the working platform, and is used for aligning the tabs with the cores and then performing spot welding;

[0012] A clamping manipulator, which is installed on one side of the working platform, and is used for automatically clamping the cut tabs, placing the tabs at the core position, and performing automatic welding.

[0013] As a preferred technical solution, more than one support column is provided at the bottom of the working platform. The bottom of the support column is fixedly connected to a rotating disk. A driving motor is provided at the bottom of the working panel. The motor shaft of the driving motor is connected to the rotating disk. The working platform is driven by the driving motor to rotate circumferentially to realize station switching.

[0014] As a preferred technical solution, each clamping station includes a fixed rod. The bottom of each fixed rod is fixedly connected to the working platform, and a through groove is provided through each fixed rod.

[0015] A pressure rod is hinged in each through groove. One end of each pressure rod is hinged with a pressing plate, and a pressing driving member is provided at the other end of each pressure rod. By lifting the pressing driving member, each pressure rod rotates along the hinged end, and the pressing plate presses the core to be welded. A pressing disk is provided at the top of the pressing driving member.

[0016] As a preferred technical solution, a backing plate is provided on the working panel at the bottom of each pressing plate. The core to be welded is placed on the backing plate, and the welding position is exposed after the core is pressed by the pressing plate.

[0017] As a preferred technical solution, the welding assembly includes a linear lifting module and a welding head installed on the linear lifting module. The welding head is used for spot welding the tab.

[0018] As a preferred technical solution, the clamping manipulator includes a multi-axis robotic arm. A telescopic driving mechanism is installed at the bottommost part of the multi-axis robotic arm. A rotating motor is installed at the output end of the telescopic driving mechanism, and a pneumatic gripper is installed on the output shaft of the rotating motor.

[0019] As a preferred technical solution, the telescopic driving mechanism adopts a cylinder or a telescopic motor.

[0020] As a preferred technical solution, a cutting mechanism is further included. The cutting mechanism is used for cutting the tab, and the cut tab is clamped by the clamping manipulator after cutting.

[0021] The beneficial effects of the present utility model are as follows: The present utility model provides an automatic spot welding device for multi-tabs or laminations, which realizes the automatic clamping and bending of the cut tabs by a manipulator, and accurately places them on the surface of the core for welding, thus effectively solving the problems of low operation accuracy, low efficiency, and poor consistency caused by manual spot welding in the prior art.

[0022] This device uses a manipulator to replace manual operation. It can not only precisely control the angle, position and welding points of the tab, but also greatly improve the speed and efficiency of spot welding. It is suitable for mass production of multi-tab or laminated structures. By folding the tab at an appropriate angle and then performing spot welding, the tab can be more closely attached to the surface of the core, ensuring the firmness and reliability of the welding and avoiding poor welding caused by angle deviation and inaccurate position in manual operation. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ;

[0025] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ;

[0026] Figure 3 Schematic front view structure diagram of the present invention;

[0027] Description of the reference numerals:

[0028] 1, working panel; 2, working platform; 3, pressing disc; 4, rotating disc; 12, driving motor; 9, fixed rod; 10, through groove; 8, pressing rod; 7, pressing plate; 18, pressing driving member; 5, backing plate; 17, linear lifting module; 16, welding head; 14, multi-axis robotic arm; 13, telescopic driving mechanism; 15, rotating motor; 11, pneumatic gripper; 19, cutting mechanism. Detailed implementation manners

[0029] All the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0030] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless specifically stated, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically stated, each feature is only an example in a series of equivalent or similar features.

[0031] Such as Figures 1 - 3As shown in the figure, an automatic spot welding device for multi-tab or laminated sheets of the present utility model includes a working panel 1, and a working platform 2 is rotatably installed on the working panel 1;

[0032] It further includes a plurality of clamping stations, which are arranged in a circle on the working platform 2. The cores to be welded are clamped and fixed through the clamping stations. The clamping stations are arranged in a circle. By rotating the working platform 2, the working positions are switched, and welding is carried out one by one in this way;

[0033] It further includes a welding assembly, which is installed on the working panel 1 and is located on one side of the working platform 2, and is used for spot welding after aligning the tabs with the cores. The welding assembly can move up and down, and descends during welding for spot welding the product;

[0034] It further includes a clamping manipulator, which is installed on one side of the working platform 2 and is used for automatically clamping the cut tabs, placing the tabs at the core position and performing automatic welding.

[0035] Among them, more than one support column is provided at the bottom of the working platform 2. The bottom of the support column is fixedly connected to a rotating disk 4. A driving motor 12 is provided at the bottom of the working panel 1. The motor shaft of the driving motor 12 is connected to the rotating disk 4. The working platform 2 is driven to rotate in a circle through the driving motor 12 to realize the working position switching. During work, the driving motor 12 is used to drive the rotating disk 4 to rotate, thereby driving the working position switching of the entire working platform 2.

[0036] As Figure 1 shown, each clamping station includes a fixed rod 9. The bottom of the fixed rod 9 is fixedly connected to the working platform 2, and a through groove 10 is provided through the fixed rod 9;

[0037] A pressure rod 8 is hingedly arranged in each through groove 10. One end of the pressure rod 8 is hingedly provided with a pressing plate 7, and a pressing driving member 18 is provided at the other end of the pressure rod 8. By jacking up through the pressing driving member 18, each pressure rod 8 rotates along the hinged end, and the pressing plate 7 presses the core to be welded. A pressing disk 3 is provided at the top of the pressing driving member 18. When the pressing driving member 18 jacks up, the pressing disk 3 will contact the movable ends of the pressing pressure rods 8, jacking up each pressure rod 8. Using the lever principle, one end of the pressing plate 7 can complete the pressing action on the core.

[0038] In order to increase the welding stability during the operation of the core and prevent damage during clamping, in this embodiment, a backing plate 5 is provided on the working panel 1 at the bottom of the pressing plate 7. The core to be welded is placed on the backing plate 5. After the core is pressed by the pressing plate 7, the welding position is exposed. The backing plate 5 can be made of an elastic material.

[0039] Among them, the welding assembly includes a linear lifting module 17 and a welding head 16 mounted on the linear lifting module 17. Spot welding is performed on the tab by the welding head 16. The linear lifting module 17 is a commonly used module in the art and will not be specifically described in this embodiment. As long as it can drive the welding head 16 to lift, the welding head 16 is any kind of spot welding mechanism, and any structure that can complete spot welding can be applied in this embodiment.

[0040] In this embodiment, the clamping manipulator includes a multi-axis robotic arm 14. At the bottommost part of the multi-axis robotic arm 14, a telescopic driving mechanism 13 is installed. At the output end of the telescopic driving mechanism 13, a rotating motor 15 is installed. The rotating motor 15 can drive the circumferential rotation of the pneumatic gripper 11. The pneumatic gripper 11 is installed on the output shaft of the rotating motor 15. The pneumatic gripper 11 is a standard part and uses pneumatic means to complete clamping, which will not be specifically described here. The multi-axis robotic arm 14 can be any robotic arm with multiple degrees of freedom, and the tab can be picked up through the robotic arm.

[0041] In this embodiment, the telescopic driving mechanism 13 adopts a cylinder or a telescopic motor.

[0042] It further includes a cutting mechanism 19, which is used to cut the tab and is clamped by the clamping manipulator after cutting. After the tab to be cut is cut by the cutting mechanism 19, it can be clamped by the clamping manipulator to the welding position for welding. The cutting mechanism 19 is an auxiliary mechanism outside the present utility model and will not be specifically described here.

[0043] The present utility model provides an automatic spot welding device for multi-tabs or laminations, which realizes the automatic clamping and bending of the cut tabs through a manipulator, and accurately places them on the surface of the core for welding, thus effectively solving the problems of low operation accuracy, low efficiency, and poor consistency caused by manual spot welding in the prior art.

[0044] This device uses a manipulator to replace manual operation. It can not only accurately control the angle, position, and welding points of the tabs, but also greatly improve the speed and efficiency of spot welding. It is suitable for batch production of multi-tabs or lamination structures. By pressing and folding the tabs at an appropriate angle before spot welding, the tabs can be more closely attached to the surface of the core, ensuring the firmness and reliability of welding, and avoiding poor welding caused by angle deviation and inaccurate position in manual operation.

[0045] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. An automatic spot welding device for multi-tab or laminated sheets, characterized in that Including: A working panel (1), on which a working platform (2) is rotatably installed; A plurality of clamping stations, which are arranged in a circle on the working platform (2), and the core to be welded is clamped and fixed through the clamping stations; A welding assembly, which is installed on the working panel (1) and located on one side of the working platform (2), and is used for spot welding after aligning the tab with the core; A clamping manipulator, which is installed on one side of the working platform (2), and is used for automatically clamping the cut tab, placing the tab at the position of the core, and automatically welding.

2. The automatic spot welding device for multi-tab or laminated sheet according to claim 1, characterized in that: One or more support columns are arranged at the bottom of the working platform (2), the bottom of the support column is fixedly connected with a rotating disk (4), a driving motor (12) is arranged at the bottom of the working panel (1), the motor shaft of the driving motor (12) is connected with the rotating disk (4), and the working platform (2) is driven to rotate in a circle through the driving motor (12) to realize station switching.

3. The automatic spot welding device for multi-tab or laminated sheet according to claim 1, characterized in that: Each clamping station includes a fixed rod (9), the bottom of the fixed rod (9) is fixedly connected with the working platform (2), and a through groove (10) is arranged through the fixed rod (9); A pressure rod (8) is hinged in each through groove (10), one end of the pressure rod (8) is hinged with a pressing plate (7), a pressing driving part (18) is arranged at the other end of the pressure rod (8), and each pressure rod (8) rotates along the hinged end by the upward pushing of the pressing driving part (18), and the pressing plate (7) presses the core to be welded. A pressing disk (3) is arranged at the top of the pressing driving part (18).

4. The automatic spot welding device for multi-tab or laminated sheet according to claim 3, characterized in that: A backing plate (5) is arranged on the working panel (1) at the bottom of the pressing plate (7), the core to be welded is placed on the backing plate (5), and the welding position is exposed after the core is pressed by the pressing plate (7).

5. The automatic spot welding device for multi-tab or laminated sheet according to claim 1, characterized in that: The welding assembly includes a linear lifting module (17) and a welding head (16) installed on the linear lifting module (17), and the tab is spot welded by the welding head (16).

6. The automatic spot welding device for multi-tab or laminated sheet according to claim 1, characterized in that: The clamping manipulator includes a multi-axis robotic arm (14), a telescopic driving mechanism (13) is installed at the bottom of the multi-axis robotic arm (14), a rotating motor (15) is installed at the output end of the telescopic driving mechanism (13), and a pneumatic gripper (11) is installed on the output shaft of the rotating motor (15).

7. The automatic spot welding device for multi-tab or laminated sheet according to claim 6, characterized in that: The telescopic driving mechanism (13) adopts a cylinder or a telescopic motor.

8. The automatic spot welding device for multi-tab or laminated sheet according to claim 1, characterized in that: It further includes a cutting mechanism (19), which is used for cutting the tab and clamping the tab by the clamping manipulator after cutting.

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