A tab bending and flattening mechanism for an electrode

Abstract

The utility model relates to the technical field of electric core production, concretely is a kind of for the ear of electric core bending and flattening mechanism, including mechanism frame body, the bottom of mechanism frame body is provided with operation table, the surface of operation table is equipped with guide batten, the surface of mechanism frame body is provided with parallel detection mechanism, the surface of operation table is provided with push positioning mechanism. The utility model not only makes the bending and flattening mechanism when using can detect whether the surface of the bent electric core body and protective soft board is flush, makes the bending and flattening mechanism when using more practical, and makes the positioning of electric core body and protective soft board more accurate when the bending and flattening mechanism is used, makes the bending and flattening mechanism when using the bending effect of protective soft board is better.

Description

Technical Field

[0001] This utility model relates to the field of battery cell manufacturing technology, specifically to a tab bending and flattening mechanism for battery cells. Background Technology

[0002] The battery cell is the core energy storage component of a rechargeable battery, consisting of a positive electrode, a negative electrode, an electrolyte, and a separator. Its quality directly affects the battery's performance and lifespan. Battery cells are used in consumer electronics, new energy vehicles, and energy storage. During the production of battery cells, a bending and flattening mechanism is required. However, existing bending and flattening mechanisms have some shortcomings in use. In order to meet market needs, a new electrode tab bending and flattening mechanism for battery cells is required.

[0003] Existing bending and flattening mechanisms typically lack parallel detection capabilities, preventing them from verifying the flatness of the bent cell body and protective circuit board surfaces. This renders them impractical. Furthermore, these mechanisms lack the ability to precisely position the protective circuit board and cell body, resulting in inaccurate positioning and reduced bending effectiveness. Utility Model Content

[0004] The purpose of this utility model is to provide a tab bending and flattening mechanism for battery cells, so as to solve the problems mentioned in the background art that the bending and flattening mechanism usually does not have the function of parallel detection and cannot push and position the protective flexible board and the battery cell body.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tab bending and flattening mechanism for battery cells, comprising a mechanism frame, an operating table at the bottom of the mechanism frame, a mechanism base mounted on the surface at the bottom of the mechanism frame, a turntable on the surface of the operating table, multiple sets of feeding plates on the surface of the turntable, a battery cell body placed on the surface of the feeding plates, a protective flexible plate on the surface of the battery cell body, a guide strip plate mounted on the surface of the operating table, a parallel detection mechanism on the surface of the mechanism frame, and a pushing and positioning mechanism on the surface of the operating table.

[0006] Preferably, the surface of the base of the mechanism is fastened to the surface of the operating table by screws and threads, the turntable and the surface of the operating table rotate and cooperate with each other, the feeding plate is symmetrically installed on the surface of the turntable with the turntable as the circumference, and multiple sets of clamping cylinders are installed on the surface of the turntable, and the clamping cylinders are respectively located on one side of the feeding plate.

[0007] Preferably, the output end of the clamping cylinder is in contact with the surface of the battery cell body, the other side of the surface of the battery cell body is in contact with the inner wall of the feeding plate, the guide plate is located inside the mechanism base, and a vision camera is installed on the surface of the mechanism frame.

[0008] Preferably, an auxiliary positioning module is installed on the surface of the turntable, a first cylinder is installed on the surface of the operating table, a first detection pressure plate is installed at the output end of the first cylinder, and the surface of the first detection pressure plate is in contact with the connection between the protective flexible board and the bottom of the battery cell body.

[0009] Preferably, the parallel detection mechanism consists of a pressure sensor, a lifting frame, a guide plate, a second cylinder, and a second detection pressure plate. The guide plate is installed on the surface of the mechanism frame, and the lifting frame is provided on the surface of the guide plate. The lifting frame and the surface of the guide plate slide against each other. The second cylinder is installed on the surface at the top of the mechanism frame, and the output end of the second cylinder is fixed to the surface of the lifting frame.

[0010] Preferably, a second detection plate is installed on the surface at the bottom of the lifting frame. Pressure sensors are installed on the inner walls of both the second and first detection plates. The surface at the bottom of the pressure sensor is in contact with the connection between the protective flexible board and the battery cell body.

[0011] Preferably, the pushing and positioning mechanism includes a movable seat, a movable block, a cylinder body, a fixed plate and a pusher plate. The cylinder body is installed on the surface at the bottom of the operating table, and the movable block is installed at the output end of the cylinder body. The movable block slides and engages with the inner wall of the operating table.

[0012] Preferably, the surface of the operating table is provided with a movable seat, the movable seat and the surface of the guide strip plate slide against each other, the surface at the bottom of the movable seat is fixed to the surface of the movable block, the surface at the top of the movable seat is equipped with a fixing plate, and the surface at the top of the fixing plate is equipped with a pusher plate, the pusher plate being located on one side of the protective flexible plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the bending and flattening mechanism used in battery cell production not only enables the bending and flattening mechanism to detect whether the surfaces of the bent battery cell body and the protective flexible board are flush, making the bending and flattening mechanism more practical, but also makes the positioning of the battery cell body and the protective flexible board more accurate, resulting in a better bending effect of the bending and flattening mechanism on the protective flexible board. 1. By setting up a parallel detection mechanism, the second cylinder on the surface of the control mechanism frame works. Under the action of the second cylinder, the lifting frame moves downward on the surface of the guide plate. When the lifting frame moves downward, it drives the second detection plate and pressure sensor downward, so that the second detection plate drives the pressure sensor downward to contact the connection between the battery cell body and the protective flexible board. Under the action of the first cylinder, the first detection plate moves upward. When the bending of the battery cell body and the protective flexible board is parallel, the pressure distribution should be uniform. If the bending of the battery cell body and the protective flexible board is not parallel, the pressure in a certain area of ​​the pressure sensor inside the second detection plate and the first detection plate will be abnormal, indicating that the connection between the battery cell body and the protective flexible board is not parallel. This realizes the parallel detection function of the bending and flattening mechanism, so that the bending and flattening mechanism can detect whether the surfaces of the bent battery cell body and the protective flexible board are flush, making the bending and flattening mechanism more practical. 2. By setting up a pushing and positioning mechanism, the cylinder body is controlled to work. Under the action of the cylinder body, the moving seat is driven to slide on the surface of the guide plate. At this time, the moving seat drives the fixed plate to move to one side of the turntable. Under the action of the guide plate, the moving seat can be guided during movement. When the fixed plate moves, the fixed plate drives the fixed plate to move to the side of the protective soft plate. The pusher plate pushes the protective soft plate, so that the protective soft plate and the battery cell body are re-aligned, which improves the bending effect of the protective soft plate. It realizes the function of pushing and positioning between the protective soft plate and the battery cell body by the bending and flattening mechanism, so that the positioning of the battery cell body and the protective soft plate is more accurate when the bending and flattening mechanism is used, and the bending effect of the protective soft plate is better when the bending and flattening mechanism is used. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present utility model; Figure 3 This is a three-dimensional structural diagram of the present invention; Figure 4 This is a schematic diagram of the front cross-sectional structure of this utility model; Figure 5 For the present utility model Figure 2 A top-down enlarged view of the middle section of the structure; Figure 6 This is a bottom view of the structure of this utility model; Figure 7 For the present utility model Figure 3 A magnified structural diagram of point A in the middle.

[0015] In the diagram: 1. Mechanism frame; 11. Operating table; 12. Turntable; 13. Feeding plate; 14. Clamping cylinder; 15. Battery cell body; 16. Protective soft board; 17. First cylinder; 18. First detection pressure plate; 19. Auxiliary positioning module; 110. Vision camera; 111. Mechanism base; 112. Guide bar plate; 2. Parallel detection mechanism; 21. Pressure sensor; 22. Lifting frame; 23. Guide plate; 24. Second cylinder; 25. Second detection pressure plate; 3. Push positioning mechanism; 31. Moving seat; 32. Moving block; 33. Cylinder body; 34. Fixed plate; 35. Pushing plate. Detailed Implementation

[0016] 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, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0017] This utility model provides a structure for a tab bending and flattening mechanism for battery cells, as shown in the following figure. Figures 1 to 5As shown, the device includes a frame 1, an operating platform 11 at the bottom of the frame 1, and a base 111 mounted on the bottom surface of the frame 1. The base 111 is threadedly fastened to the operating platform 11 by screws. The device also includes a PLC controller. A turntable 12 is mounted on the surface of the operating platform 11, rotating in conjunction with the surface of the platform 11. Multiple feeding plates 13 are symmetrically mounted around the turntable 12. Battery cell bodies 15 are placed on the surface of the feeding plates 13, and protective flexible plates 16 are mounted on the surface of the battery cell bodies 15. Multiple clamping cylinders 14 are mounted on the surface of the turntable 12, with their inputs electrically connected to the outputs of the PLC controller. The clamping cylinders 14 are located on one side of each feeding plate 13. The output end of the clamping cylinder 14 is in contact with the surface of the battery cell body 15, and the other side of the surface of the battery cell body 15 is in contact with the inner wall of the feeding plate 13. A guide plate 112 is installed on the surface of the operating table 11, and the guide plate 112 is located inside the mechanism base 111. A vision camera 110 is installed on the surface of the mechanism frame 1, and the output end of the vision camera 110 is electrically connected to the input end of the PLC controller. An auxiliary positioning module 19 is installed on the surface of the turntable 12. A first cylinder 17 is installed on the surface of the operating table 11. The first cylinder 17 can be of the SC series. The input end of the first cylinder 17 is electrically connected to the output end of the PLC controller. A first detection pressure plate 18 is installed on the output end of the first cylinder 17. The surface of the first detection pressure plate 18 is in contact with the connection between the protective soft plate 16 and the bottom of the battery cell body 15.

[0018] Furthermore, such as Figure 2 and Figure 4 As shown, a parallel detection mechanism 2 is provided on the surface of the frame 1. The parallel detection mechanism 2 consists of a pressure sensor 21, a lifting frame 22, a guide plate 23, a second cylinder 24, and a second detection pressure plate 25. The guide plate 23 is installed on the surface of the frame 1, and the lifting frame 22 is installed on the surface of the guide plate 23. The surfaces of the lifting frame 22 and the guide plate 23 slide against each other. The second cylinder 24 is installed on the surface at the top of the frame 1. The second cylinder 24 can be of the SC series. The input end of the second cylinder 24 is electrically connected to the output end of the PLC controller. The output end of the second cylinder 24 is fixed to the surface of the lifting frame 22. The second detection pressure plate 25 is installed on the surface at the bottom of the lifting frame 22. Pressure sensors 21 are installed on the inner walls of both the second detection pressure plate 25 and the first detection pressure plate 18. The pressure sensors 21 can be of the NTC series. The output end of the pressure sensors 21 is electrically connected to the input end of the PLC controller. The surface at the bottom of the pressure sensors 21 is in contact with the connection between the protective flexible board 16 and the battery cell body 15.

[0019] During implementation, the second cylinder 24 on the surface of the control mechanism frame 1 operates, driving the lifting frame 22 to move downwards on the surface of the guide plate 23. As the lifting frame 22 moves downwards, it also drives the second detection plate 25 and pressure sensor 21 downwards, causing the second detection plate 25 to move downwards until it contacts the connection point between the battery cell body 15 and the protective flexible board 16. At this time, the PLC controller controls the first cylinder 17 to operate, driving the first detection plate 18 upwards until it contacts the connection point between the battery cell body 15 and the protective flexible board 16. The surfaces at the bottom of the connection point of plate 16 are in contact. When the cell body 15 and the protective flexible plate 16 are bent vertically parallel, the pressure distribution should be uniform. If the cell body 15 and the protective flexible plate 16 are not bent vertically parallel, the pressure in a certain area of ​​the pressure sensor 21 inside the second detection plate 25 and the first detection plate 18 will be abnormal, indicating that the connection point of the cell body 15 and the protective flexible plate 16 is not vertically parallel. The pressure sensor 21 sends a signal to the PLC controller, and the PLC controller issues an alarm, indicating that the connection point of the tested cell body 15 and the protective flexible plate 16 is not vertically parallel, so as to realize the function of parallel detection of the bending and flattening mechanism.

[0020] Furthermore, such as Figure 3 , Figure 6 and Figure 7 As shown, the surface of the operating table 11 is provided with a push positioning mechanism 3. The push positioning mechanism 3 includes a movable seat 31, a movable block 32, a cylinder body 33, a fixed plate 34, and a pusher plate 35. The cylinder body 33 is installed on the surface at the bottom of the operating table 11. The cylinder body 33 can be of the SC series. The input end of the cylinder body 33 is electrically connected to the output end of the PLC controller. The movable block 32 is installed on the output end of the cylinder body 33. The movable block 32 slides against the inner wall of the operating table 11. The surface of the operating table 11 is provided with a movable seat 31. The movable seat 31 slides against the surface of the guide plate 112. The surface at the bottom of the movable seat 31 is fixed to the surface of the movable block 32. The fixed plate 34 is installed on the surface at the top of the movable seat 31. The pusher plate 35 is installed on the surface at the top of the fixed plate 34. The pusher plate 35 is located on one side of the protective soft plate 16.

[0021] During implementation, when flattening and testing the connection between the battery cell body 15 and the protective flexible board 16, the PLC controller controls the cylinder body 33 to work. Under the action of the cylinder body 33, the moving seat 31 slides on the surface of the guide plate 112. At this time, the moving seat 31 drives the fixed plate 34 to move towards one side of the turntable 12. Under the action of the guide plate 112, the moving seat 31 can be guided during movement. When the fixed plate 34 moves, the fixed plate 34 drives the fixed plate 34 to move towards one side of the protective flexible board 16. The pusher plate 35 pushes the protective flexible board 16, so that the protective flexible board 16 and the battery cell body 15 are re-aligned, which improves the bending effect of the protective flexible board 16, so as to realize the function of the bending and flattening mechanism in pushing and positioning the protective flexible board 16 and the battery cell body 15.

[0022] Working principle: In use, firstly, the feeding module feeds the battery cell body 15 and the protective flexible board 16 to be bent onto the surface of the feeding plate 13. When the turntable 12 rotates, it drives the feeding plate 13 to move. The clamping cylinder 14 works to press and fix the battery cell body 15 and the protective flexible board 16 against the surface of the feeding plate 13. Under the action of the auxiliary positioning module 19, the positions of the battery cell body 15 and the protective flexible board 16 are held in place during bending, so that the battery cell body 15 and the protective flexible board 16 are more stable on the surface of the feeding plate 13.

[0023] Subsequently, when the vision camera 110 detects that the battery cell body 15 and the protective flexible board 16 have moved to one side of the mechanism frame 1 and the mechanism base 111, the vision camera 110 sends a signal to the PLC controller. After receiving the signal from the vision camera 110, the PLC controller automatically controls the second cylinder 24 on the surface of the mechanism frame 1 to work. Under the action of the second cylinder 24, the lifting frame 22 moves downward on the surface of the guide plate 23. When the lifting frame 22 moves downward, it drives the second detection plate 25 and the pressure sensor 21 to move downward, so that the second detection plate 25 drives the pressure sensor 21 to move downward until they contact the connection point of the battery cell body 15 and the protective flexible board 16. At this time, the PLC controller controls the first cylinder 17 to work. Under the action of the first cylinder 17, the first detection plate 18 moves upward, so that the first detection plate 18 moves upward until it contacts the connection point of the battery cell body 15 and the protective flexible board 16. The surfaces at the bottom of the connection between the battery cell body 15 and the protective flexible board 16 are in contact. When the battery cell body 15 and the protective flexible board 16 are bent vertically parallel, the pressure distribution should be uniform. If the battery cell body 15 and the protective flexible board 16 are not bent vertically parallel, the pressure in a certain area of ​​the pressure sensor 21 inside the second detection plate 25 and the first detection plate 18 will be abnormal, indicating that the connection between the battery cell body 15 and the protective flexible board 16 is not vertically parallel. The pressure sensor 21 sends a signal to the PLC controller, and the PLC controller controls the alarm 18 to sound an alarm, indicating that the connection between the tested battery cell body 15 and the protective flexible board 16 is not vertically parallel. This realizes the function of parallel detection of the bending and flattening mechanism, so that the bending and flattening mechanism can detect whether the surfaces of the bent battery cell body 15 and the protective flexible board 16 are flush when in use, making the bending and flattening mechanism more practical.

[0024] Subsequently, during the flattening test at the connection between the battery cell body 15 and the protective flexible board 16, the PLC controller controls the cylinder body 33 to work. Under the action of the cylinder body 33, the moving seat 31 slides on the surface of the guide plate 112. At this time, the moving seat 31 drives the fixed plate 34 to move to one side of the turntable 12. Under the action of the guide plate 112, the moving seat 31 can be guided during movement. When the fixed plate 34 moves, the fixed plate 34 drives the fixed plate 34 to move to one side of the protective flexible board 16. The pusher plate 35 pushes the protective flexible board 16, so that the protective flexible board 16 and the battery cell body 15 are re-aligned, improving the bending effect of the protective flexible board 16. This realizes the function of pushing and positioning the protective flexible board 16 and the battery cell body 15 by the bending and flattening mechanism, making the positioning of the battery cell body 15 and the protective flexible board 16 more accurate when the bending and flattening mechanism is used, and making the bending effect of the protective flexible board 16 better when the bending and flattening mechanism is used. Finally, the use of the bending and flattening mechanism is completed.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tab bending and flattening mechanism for battery cells, comprising a mechanism frame (1), characterized in that: The bottom of the mechanism frame (1) is provided with an operating table (11), and the surface of the bottom of the mechanism frame (1) is provided with a mechanism base (111). The surface of the operating table (11) is provided with a turntable (12), and the surface of the turntable (12) is provided with multiple sets of feeding plates (13). The surface of the feeding plate (13) is provided with a battery cell body (15), and the surface of the battery cell body (15) is provided with a protective soft plate (16). The surface of the operating table (11) is provided with a guide strip plate (112), the surface of the mechanism frame (1) is provided with a parallel detection mechanism (2), and the surface of the operating table (11) is provided with a push positioning mechanism (3).

2. The electrode tab bending and flattening mechanism for a battery cell according to claim 1, characterized in that: The surface of the base (111) of the mechanism is fastened to the surface of the operating table (11) by screws. The turntable (12) and the surface of the operating table (11) rotate and cooperate with each other. The feeding plate (13) is symmetrically installed on the surface of the turntable (12) with the turntable (12) as the circumference. Multiple sets of clamping cylinders (14) are installed on the surface of the turntable (12). The clamping cylinders (14) are located on one side of the feeding plate (13).

3. The electrode tab bending and flattening mechanism for a battery cell according to claim 2, characterized in that: The output end of the clamping cylinder (14) is in contact with the surface of the battery cell body (15), the other side of the surface of the battery cell body (15) is in contact with the inner wall of the feeding plate (13), the guide plate (112) is located inside the mechanism base (111), and a vision camera (110) is installed on the surface of the mechanism frame (1).

4. The electrode tab bending and flattening mechanism for a battery cell according to claim 1, characterized in that: An auxiliary positioning module (19) is installed on the surface of the turntable (12), and a first cylinder (17) is installed on the surface of the operating table (11). A first detection pressure plate (18) is installed at the output end of the first cylinder (17). The surface of the first detection pressure plate (18) is in contact with the connection between the protective soft board (16) and the bottom of the battery cell body (15).

5. The electrode tab bending and flattening mechanism for a battery cell according to claim 1, characterized in that: The parallel detection mechanism (2) is composed of a pressure sensor (21), a lifting frame (22), a guide plate (23), a second cylinder (24) and a second detection pressure plate (25). The guide plate (23) is installed on the surface of the mechanism frame (1), and the lifting frame (22) is provided on the surface of the guide plate (23). The surfaces of the lifting frame (22) and the guide plate (23) slide against each other. The second cylinder (24) is installed on the surface at the top of the mechanism frame (1), and the output end of the second cylinder (24) is fixed to the surface of the lifting frame (22).

6. The electrode tab bending and flattening mechanism for a battery cell according to claim 5, characterized in that: A second detection plate (25) is installed on the surface at the bottom of the lifting frame (22). Pressure sensors (21) are installed on the inner walls of the second detection plate (25) and the first detection plate (18). The surface at the bottom of the pressure sensor (21) is in contact with the connection between the protective soft plate (16) and the battery cell body (15).

7. The electrode tab bending and flattening mechanism for a battery cell according to claim 1, characterized in that: The pushing and positioning mechanism (3) includes a movable seat (31), a movable block (32), a cylinder body (33), a fixed plate (34), and a pusher plate (35). The cylinder body (33) is installed on the surface at the bottom of the operating table (11). The movable block (32) is installed at the output end of the cylinder body (33). The movable block (32) slides and cooperates with the inner wall of the operating table (11).

8. The electrode tab bending and flattening mechanism for a battery cell according to claim 1, characterized in that: The surface of the operating table (11) is provided with a movable seat (31), the movable seat (31) and the surface of the guide strip (112) slide together, the surface of the bottom position of the movable seat (31) is fixed to the surface of the movable block (32), the surface of the top position of the movable seat (31) is installed with a fixing plate (34), the surface of the top position of the fixing plate (34) is installed with a pusher plate (35), and the pusher plate (35) is located on one side of the protective soft plate (16).

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