A bending device

Abstract

The application relates to a bending device, comprising a bending mechanism, the bending mechanism comprising a bending driving assembly and a bending plate, the bending driving assembly being connected to the bending plate, the bending plate having a first bending surface and a second bending surface, the first bending surface being horizontal, the second bending surface being formed at an angle with the first bending surface, and the bending driving assembly being capable of driving the bending plate to move in a first direction and a second direction to perform one-time bending and two-time bending on a connecting piece through the first bending surface and the second bending surface respectively. The application can realize two-time bending on the connecting piece through a single bending plate, effectively simplifies the bending process and control logic of the connecting piece, improves the bending efficiency of the connecting piece, and guarantees the precision and consistency of the bending of the connecting piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery processing equipment, in particular to a bending device. BACKGROUND

[0002] The bending process of the positive electrode connecting piece of the battery cell is one of the important processing technologies in the battery manufacturing industry, and the purpose is to bend the positive electrode connecting piece of the battery cell into a specific angle, height and position according to the requirements.

[0003] In order to bend the connecting piece into a preset angle, it is generally necessary to bend the connecting piece multiple times. The current automatic bending device adopts a mode of driving multiple bending blocks by multiple driving members such as air cylinders and motors, and bending the connecting piece in a specific order. This mode is complex in process, inconvenient to control, low in bending efficiency, and prone to motion interference between multiple bending blocks, thereby reducing the bending accuracy. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a bending device which can realize the secondary bending of the connecting piece by a single bending plate, effectively simplifying the bending process and control logic of the connecting piece, thereby improving the bending efficiency of the connecting piece and ensuring the bending accuracy and consistency of the connecting piece.

[0005] A bending device includes a bending mechanism, the bending mechanism includes a bending driving assembly and a bending plate, the bending driving assembly is connected to the bending plate, the bending plate has a first bending surface and a second bending surface, the first bending surface is horizontal, the second bending surface forms an included angle with the first bending surface, and the bending driving assembly can drive the bending plate to move in a first direction and a second direction to bend the connecting piece by the first bending surface and the second bending surface respectively.

[0006] In the above technical solution, the bending plate has a first bending surface and a second bending surface. During bending, the bending driving assembly drives the bending plate to move to the lower side of the connecting piece, and then drives the bending plate to move vertically upward in the second direction, so as to bend the connecting piece by the first bending surface to bend the connecting piece upward by 90°. Then the bending driving assembly drives the bending plate to move in the first direction, and bends the connecting piece by the second bending surface to form a preset angle. The present application can realize the secondary bending of the connecting piece by a single bending plate, effectively simplify the bending process and control logic, and the action between the first bending and the second bending is coherent, which reduces the waiting time of multiple driving members and bending members in the prior art due to interference, effectively improves the bending efficiency, and improves the bending quality and consistency.

[0007] Further, the bending plate is provided with an elastic block, the elastic block is movable along a second direction relative to the bending plate, and the second bending surface is arranged on the elastic block.

[0008] In the above technical solution, when the bending plate is bent for the second time, the elastic block can move along the second direction under the pressure on the connecting piece, thereby buffering the pressure and protecting the connecting piece.

[0009] Further, the bending driving assembly comprises a first bending driving member, a movable seat, and a second bending driving member, the output end of the first bending driving member is connected to the movable seat, the second bending driving member is arranged on the movable seat, and the output end of the second bending driving member is connected to the bending plate.

[0010] In the above technical solution, the first bending driving member and the second bending driving member are used to drive the bending plate to move along the first direction and the second direction respectively, so that the structure is simple, the action is stable, and the moving precision is high.

[0011] Further, the pressing mechanism for positioning the battery cell comprises a plurality of pressing blocks, a first pressing driving member, and a second pressing driving member, the first pressing driving member and the second pressing driving member are used to drive the pressing blocks to move along the second direction and the first direction respectively.

[0012] In the above technical solution, the first pressing driving member drives the plurality of pressing blocks to move along the first direction to above the corresponding battery cell, and then the second pressing driving member drives the plurality of pressing blocks to move downward along the second direction to press the battery cell, so as to fix the battery cell and ensure the stability of the position of the battery cell in the subsequent bending process.

[0013] Further, the pressing block is provided with a shaped surface, and the angle of the shaped surface matches the angle of the second bending surface.

[0014] In the above technical solution, the shaped surface plays a supporting and shaping role on the connecting piece during the second bending, and by changing the angle of the shaped surface, the angle of the connecting piece after the second bending can be changed, so as to meet the demand of different products on the angle of the connecting piece.

[0015] Further, the identification and positioning mechanism comprises a visual detection assembly and a rotating assembly, the visual detection assembly is used to collect the position information of the connecting piece of the plurality of battery cells, and the rotating assembly is used to drive the plurality of battery cells to rotate, so that the connecting piece is rotated to a preset position.

[0016] In the technical scheme, the visual detection assembly can recognize the positions of the connecting pieces of the plurality of battery cells simultaneously, and the recognition efficiency is high; the rotating assembly can rotate the plurality of battery cells according to the position information, so that the connecting pieces of the battery cells reach the preset positions, thereby achieving batch adjustment of the positions of the connecting pieces of the battery cells and effectively reducing the operation time of the connecting piece bending.

[0017] Further, the rotating assembly comprises a fixed part and a movable part arranged oppositely, a plurality of driven wheels are arranged on the fixed part, and a plurality of driving wheels are arranged on the movable part; the movable part is configured to be movable along a first direction to clamp the plurality of battery cells between the driving wheels and the driven wheels.

[0018] In the technical scheme, the feeding mechanism moves the plurality of battery cells to the rotating assembly and makes the battery cells abut against the driven wheels of the fixed part, then the movable part moves along the first direction to make the driving wheels abut against the battery cells, and the battery cells are driven to rotate by the driving wheels to adjust the positions of the connecting pieces of the battery cells, so that the movable part and the feeding mechanism are avoided from interfering with each other during the movement of the battery cells.

[0019] Further, the movable part comprises a translation driving element, a seat body, and a plurality of rotation driving elements; the plurality of driving wheels are rotationally arranged on the seat body; the output end of the translation driving element is connected to the seat body; and the plurality of rotation driving elements are arranged on the seat body, and the output end of each rotation driving element is connected to a corresponding driving wheel.

[0020] In the technical scheme, the plurality of rotation driving elements are connected to the plurality of driving wheels respectively, and the corresponding driving wheels are driven to rotate by the mutually independent rotation driving elements, so that each battery cell is independently rotated and adjusted without interference, and the efficiency and accuracy of the connecting piece correction are improved.

[0021] Further, the feeding mechanism comprises a moving platform, at least one carrier plate arranged on the moving platform, a first feeding driving element connected to the moving platform and used to drive the moving platform to move along a third direction, and a second feeding driving element used to drive the moving platform to move along a first direction.

[0022] In the technical scheme, the first feeding mechanism can drive the carrier plate to move along the third direction, so as to automatically move the plurality of battery cells between the upstream station and the bending station; and the second feeding mechanism can drive the moving platform as a whole to move along the first direction, so as to load the plurality of battery cells on the carrier plate to the recognition and positioning mechanism, thereby achieving automatic loading of the plurality of battery cells and improving the loading efficiency.

[0023] Further, the feeding mechanism further comprises a lifting assembly used to drive the moving platform to move along a second direction.

[0024] In the above technical solution, the lifting assembly can drive the transfer platform to move along the second direction, so as to match the height difference between the stations, and make the action of the transfer platform more flexible and more applicable.

[0025] Compared with the prior art, the bending plate has a first bending surface and a second bending surface. When bending, the bending plate is driven by the bending driving assembly to move below the connecting piece, and then the bending plate is driven to move vertically upward along the second direction, so that the connecting piece is bent once by the first bending surface, and the connecting piece is bent upward by 90°. Subsequently, the bending driving assembly drives the bending plate to move along the first direction, and the connecting piece bent once is bent twice by the second bending surface, so that the connecting piece is formed into a preset angle. The present application can realize twice bending of the connecting piece by a single bending plate, effectively simplifying the bending process and control logic, and the action between the first bending and the second bending is coherent, reducing the waiting time of multiple driving members and bending members in the prior art due to interference, effectively improving the bending efficiency, and improving the quality and consistency of the bending of the connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The figure is a structural schematic view of the bending device of the embodiment of the present application.

[0027] Figure 2 The figure is a structural schematic view of the bending device of the embodiment of the present application from another angle.

[0028] Figure 3 The figure is a structural schematic view of the bending mechanism and the pressing mechanism of the embodiment of the present application.

[0029] Figure 4 The figure is a structural schematic view of the bending mechanism and the pressing mechanism of the embodiment of the present application. Figure 3 The figure is a partial enlarged view of the bending plate.

[0030] Figure 5 The figure is a partial enlarged view of the bending plate. Figure 3 The figure is a partial enlarged view of the pressing block.

[0031] Figure 6 The figure is a structural schematic view of the identification positioning mechanism of the embodiment of the present application.

[0032] Figure 7 The figure is a structural schematic view of the feeding mechanism of the embodiment of the present application.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] Feeding mechanism 1, carrier plate 11, transfer platform 12, first feeding driving member 13, second feeding driving member 14, lifting assembly 15;

[0035] The recognition and positioning mechanism 2, the visual detection assembly 21, the camera 211, the illuminating part 212, the rotating assembly 22, the fixed part 221, the driven wheel 2211, the movable part 222, the driving wheel 2221, the translation driving part 2222, the seat 2223, the rotation driving part 2224;

[0036] The pressing mechanism 3, the pressing block 31, the shaped surface 311, the first pressing driving part 32, the second pressing driving part 33;

[0037] The bending mechanism 4, the bending driving assembly 41, the first bending driving part 411, the movable seat 412, the second bending driving part 413, the first lead screw 414, the second lead screw 415, the bending plate 42, the first bending surface 421, the second bending surface 422, the elastic block 423, the support 43;

[0038] The first direction C1, the second direction C2, the third direction C3. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present application, a more comprehensive description of the present application will be given below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein.

[0040] Please refer to Figure 1 and Figure 2 The bending device of the present application mainly comprises a feeding mechanism 1, a recognition and positioning mechanism 2, a pressing mechanism 3, and a bending mechanism 4.

[0041] The feeding mechanism 1 is used to transfer the carrier plate 11 to realize the transfer of multiple battery cells between the upstream station, the bending station, and the downstream station through the carrier plate 11. The carrier plate 11 can load multiple battery cells, and the multiple battery cells are arranged along the third direction C3 on the carrier plate 11. The carrier plate 11 adsorbs the battery cells by magnetic attraction. The recognition and positioning mechanism 2 is arranged on the transfer path of the feeding mechanism 1 and is used to adjust the position of the connecting tabs of the multiple battery cells. The pressing mechanism 3 is arranged adjacent to the recognition and positioning mechanism 2 and is used to press and fix the multiple battery cells. The bending mechanism 4 is movably arranged above the pressing mechanism 3 and is used to bend the connecting tabs of the multiple battery cells.

[0042] The feeding mechanism 1 can simultaneously transfer multiple battery cells to the recognition and positioning mechanism 2 through the carrier plate 11. The recognition and positioning mechanism 2 simultaneously recognizes the positions of the connecting tabs of the multiple battery cells, adjusts the connecting tabs of the battery cells to the preset positions according to the position information, and then the pressing mechanism 3 presses and fixes the battery cells. The bending mechanism 4 simultaneously bends the connecting tabs of the multiple battery cells. Compared with the existing bending equipment, the present application can realize batch bending of the connecting tabs of multiple battery cells, effectively improve the bending efficiency, and ensure the accuracy and consistency of the bent connecting tabs, thereby improving the quality of the products.

[0043] Please refer to Figure 3 , the bending mechanism 4 comprises a bending driving assembly 41 and a bending plate 42. Wherein, the bending plate 42 is connected to the output end of the bending driving assembly 41, and the bending driving assembly 41 drives the bending plate 42 to move along the first direction C1 and the second direction C2. The multi-directional movement of the bending plate 42 can be realized by the bending driving assembly 41, which makes the bending action more flexible, and the structure of the bending plate 42 can realize accurate bending and shaping of the connecting piece, improving the quality of bending.

[0044] The bending driving assembly 41 comprises a first bending driving member 411, a movable seat 412, and a second bending driving member 413. Wherein, the movable seat 412 is configured to be movable along the first direction C1, for example, the bracket 43 is provided with two guide rails extending along the first direction C1, and the two ends of the movable seat 412 are respectively connected to the two guide rails, so that the movable seat 412 is slidably arranged above the pressing mechanism. The first bending driving member 411 can adopt the existing linear driving device, in this embodiment, the first bending driving member 411 is a step motor, and the output end thereof is provided with a first screw rod 414, the first screw rod 414 is threadedly connected with the movable seat 412, and the first bending driving member 411 can drive the first screw rod 414 to rotate, thereby driving the movable seat 412 to move along the first direction C1. The second bending driving member 413 is arranged on the movable seat 412, and the second bending driving member 413 can adopt the existing linear driving device, in this embodiment, the second bending driving member 413 is a step motor, and the output end thereof is provided with a second screw rod 415, the second screw rod 415 is threadedly connected with the bending plate 42, and the second bending driving member 413 can drive the second screw rod 415 to rotate, thereby driving the bending plate 42 to move along the second direction C2.

[0045] The first bending driving member 411 and the second bending driving member 413 both adopt step motors, and they respectively drive the bending plate 42 to move along the first direction C1 and the second direction C2, the speed is controllable, the action is stable, and the moving precision is high.

[0046] Please refer to Figure 4 , the bending plate 42 has a first bending surface 421 and a second bending surface 422. Wherein, the first bending surface 421 is horizontal, and the second bending surface 422 forms an included angle with the first bending surface 421. Through the cooperation of the first bending surface 421 and the second bending surface 422, the accurate bending and shaping of the connecting piece can be realized.

[0047] The bending plate 42 in the embodiment is provided with a plurality of elastic blocks 423, the elastic blocks 423 can move relative to the bending plate 42 along the second direction C2, and the second bending surface 422 is arranged on the elastic blocks 423. Specifically, the elastic blocks 423 and the bending plate 42 are provided with springs, so that the elastic blocks 423 can move along the second direction C2 under the action of pressure. By arranging the elastic blocks 423, when the bending plate 42 is bent for the second time, the elastic blocks 423 can move along the second direction under the pressure on the connecting piece, thereby buffering the pressure and protecting the connecting piece.

[0048] In order to facilitate understanding of the above technical solutions, the specific operation steps of the bending mechanism 4 are as follows: the first bending driving member 411 drives the bending plate 42 to move to the front side of the connecting piece, the second bending driving member 413 drives the bending plate 42 to move downward, so that the height of the first bending surface 421 is lower than the height of the connecting piece, then the first bending driving member 411 drives the bending plate 42 to move horizontally, so that the first bending surface 421 is located below the projection of the connecting piece in the second direction C2, the second bending driving member 413 drives the bending plate 42 to move vertically upward along the second direction C2, the first bending surface 421 is in contact with the connecting piece to bend the connecting piece for the first time, the connecting pieces of a plurality of battery cells are bent upward by 90° at the same time, then the first bending driving member 411 drives the bending plate 42 to move horizontally, and the second bending surface 422 bends the connecting piece bent for the first time for the second time, so that the connecting piece is formed into a preset angle.

[0049] Compared with the existing bending equipment which needs to be bent by a plurality of bending members, the present application can accurately bend the connecting piece by a single bending plate 42, the structure is ingenious, and the bending efficiency and quality are effectively improved.

[0050] Please refer to Figure 3 and Figure 5 , the pressing mechanism 3 includes a plurality of pressing blocks 31, a first pressing driving member 32, and a second pressing driving member 33, the first pressing driving member 32 and the second pressing driving member 33 respectively drive the pressing blocks 31 to move along the second direction C2 and the first direction C1. Exemplarily, the first pressing driving member 32 and the second pressing driving member 33 adopt the existing linear driving device, for example, can be a pneumatic cylinder, the output end of the first pressing driving member 32 is connected to the second pressing driving member 33, the output end of the second pressing driving member 33 is provided with a connecting plate, and the plurality of pressing blocks 31 are arranged on the connecting plate. It can be understood that the number of pressing blocks 31 is equal to the number of battery cells that can be loaded on the carrier plate 11. Specifically, the first pressing driving member 32 drives the connecting plate to rise, the second pressing driving member 33 drives the connecting plate to move horizontally, so that the pressing blocks 31 move above the battery cells, then the first pressing driving member 32 drives the connecting plate to descend, so that the pressing blocks 31 press the battery cells from top to bottom, thereby ensuring the stability of the position of the battery cells in the subsequent bending process.

[0051] The pressing block 31 is provided with a shaped surface 311, and the angle of the shaped surface 311 matches the angle of the second bending surface 422. The shaped surface 311 supports and shapes the connecting piece during the second bending, and by changing the angle of the shaped surface 311, the angle of the connecting piece after the second bending can be changed, thereby meeting the needs of different products for the angle of the connecting piece.

[0052] Please refer to Figure 1 and Figure 6 The identification and positioning mechanism 2 includes a visual detection assembly 21 and a rotating assembly 22. The visual detection assembly 21 is used to collect the position information of the connecting pieces of the plurality of battery cells, and the rotating assembly 22 is used to drive the plurality of battery cells to rotate so that the connecting pieces rotate to the preset positions. The visual detection assembly 21 can simultaneously identify the positions of the connecting pieces of the plurality of battery cells, and the identification efficiency is high. The rotating assembly 22 can rotate the plurality of battery cells according to the position information, so that the connecting pieces of the battery cells reach the preset positions, thereby achieving batch adjustment of the positions of the connecting pieces of the battery cells and effectively reducing the operation time of the connecting piece bending.

[0053] For example, the visual detection assembly 21 includes a camera 211 and a lighting device 212. The camera 211 is arranged above the rotating assembly 22 and is used to obtain the positions of the connecting pieces. The lighting device 212 can be an LED lamp, and the light direction of the lighting device 212 is towards the rotating assembly 22, which is used to provide sufficient light for visual identification and improve the positioning accuracy.

[0054] Please refer to Figure 6 The rotating assembly 22 includes a fixed part 221 and a movable part 222 arranged oppositely. The fixed part 221 is arranged with a plurality of driven wheels 2211, and the movable part 222 is arranged with a plurality of driving wheels 2221. The movable part 222 is configured to be movable along a first direction C1 so as to clamp the plurality of battery cells between the driven wheels 2211 and the driving wheels 2221.

[0055] The active part 222 includes a translation driving part 2222, a seat 2223, and a plurality of rotation driving parts 2224. The plurality of driving wheels 2221 are rotationally arranged on the seat 2223. The output end of the translation driving part 2222 is connected to the seat 2223. The plurality of rotation driving parts 2224 are arranged on the seat 2223. The output end of each rotation driving part 2224 is connected to a corresponding driving wheel 2221. It should be noted that the driven wheels 2211 are two in a group, that is, one driving wheel 2221 is opposite to two driven wheels 2211. When the battery cell is located in the rotation assembly 22, the battery cell is located between the two adjacent driven wheels 2211 to ensure the stability of the battery cell during rotation. In the embodiment, the driven wheel 2211 includes a first wheel body and a second wheel body which are oppositely arranged along the second direction C2. The first wheel body and the second wheel body are connected by a shaft. The distance between the first wheel body and the second wheel body matches the height of the battery cell, thereby supporting the upper and lower ends of the battery cell to avoid tilting of the battery cell during rotation.

[0056] In the specific implementation, the feeding mechanism 1 moves a plurality of battery cells to the rotation assembly 22 and makes the battery cells abut against the driven wheels 2211 of the fixed part 221. Then, the active part 222 moves along the first direction C1 to make the driving wheels 2221 abut against the battery cells and drive the battery cells to rotate by the driving wheels 2221 to adjust the position of the connecting piece of the battery cell. The structure is ingenious and can avoid the action interference between the active part 222 and the feeding mechanism 1 during the movement of the battery cell.

[0057] Please refer to Figure 7 The feeding mechanism 1 includes a moving platform 12, a first feeding driving part 13, and a second feeding driving part 14. The moving platform 12 is provided with at least one loading plate 11. The output end of the first feeding driving part 13 is connected to the moving platform 12 to drive the moving platform 12 to move along the third direction C3. The second feeding driving part 14 is used to drive the moving platform 12 to move along the first direction C1.

[0058] Exemplarily, the transfer platform 12 is provided with three loading plates 11, the three loading plates 11 are respectively located at two ends and the middle of the transfer platform 12, the first feeding driving member 13 can adopt a single shaft servo motor, the output end of the first feeding driving member 13 is connected to the transfer platform 12, the first feeding driving member 13 and the transfer platform 12 are arranged on a sliding plate, the sliding plate is arranged on two tracks extending along the first direction C1, the output end of the second feeding driving member 14 is connected to the sliding plate, the second feeding driving member 14 can drive the sliding plate to move along the first direction C1, so that the loading plate 11 moves along the first direction C1, and then the battery cell on the loading plate 11 is driven to abut against the driven wheel 2211 of the rotating assembly 22.

[0059] As can be seen from the above technical solution, the first feeding mechanism 1 can drive the loading plate 11 to move along the third direction C3, so as to realize the automatic transfer of the plurality of battery cells between the upstream station and the bending station, and the second feeding mechanism 1 can drive the feeding platform as a whole to move along the first direction C1, so as to feed the plurality of battery cells on the loading plate 11 to the identification positioning mechanism 2, thereby realizing the automatic feeding of the plurality of battery cells and improving the feeding efficiency.

[0060] In the embodiment, the feeding mechanism 1 further comprises a lifting assembly 15 for driving the transfer platform 12 to move along the second direction C2, the lifting assembly 15 can adopt an existing linear driving device, which will not be described herein. The lifting assembly 15 can drive the transfer platform 12 to move along the second direction C2, so as to match the height difference between the stations, and the action of the transfer platform 12 is more flexible and has stronger applicability.

[0061] In the description of the present application, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0062] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise specifically limited.

[0063] While the application has been described in connection with specific embodiments thereof, it will be understood that many modifications, substitutions and changes will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all changes and modifications that fall within the spirit and scope of the claims.

Claims

1. A bending apparatus characterized by comprising: The bending mechanism (4) comprises a bending driving assembly (41) and a bending plate (42), the bending driving assembly (41) is connected to the bending plate (42), the bending plate (42) has a first bending surface (421) and a second bending surface (422), the first bending surface (421) is horizontal, the second bending surface (422) forms an included angle with the first bending surface (421), and the bending driving assembly (41) can drive the bending plate (42) to move in a first direction and a second direction respectively to bend a connecting piece once and twice through the first bending surface (421) and the second bending surface (422) respectively. The identification positioning mechanism (2) comprises a visual detection assembly (21) and a rotating assembly (22), the visual detection assembly (21) is used for collecting position information of connecting pieces of a plurality of battery cells, and the rotating assembly (22) is used for driving the plurality of battery cells to rotate so that the connecting pieces are rotated to a preset position. The rotating assembly (22) comprises oppositely arranged fixed parts (221) and movable parts (222), a plurality of driven wheels (2211) are arranged on the fixed parts (221), a plurality of driving wheels (2221) are arranged on the movable parts (222), and the movable parts (222) are configured to be movable in the first direction to clamp the plurality of battery cells between the driven wheels (2211) and the driving wheels (2221).

2. The folding apparatus according to claim 1, wherein The bending plate (42) is provided with an elastic block (423), the elastic block (423) is movable in a second direction relative to the bending plate (42), and the second bending surface (422) is arranged on the elastic block (423).

3. The bending apparatus according to claim 1, wherein The bending driving assembly (41) comprises a first bending driving member (411), a movable seat (412) and a second bending driving member (413), an output end of the first bending driving member (411) is connected to the movable seat (412), the second bending driving member (413) is arranged on the movable seat (412), and an output end of the second bending driving member (413) is connected to the bending plate (42).

4. The bending apparatus according to claim 1, wherein The pressing mechanism (3) for positioning the battery cell comprises a plurality of pressing blocks (31), a first pressing driving member (32) and a second pressing driving member (33), the first pressing driving member (32) and the second pressing driving member (33) drive the pressing blocks (31) to move in the second direction and the first direction respectively.

5. The bending apparatus according to claim 4, wherein The pressing block (31) is provided with a shaped surface (311), and an angle of the shaped surface (311) matches an angle of the second bending surface (422).

6. The folding apparatus of claim 1, wherein The active part (222) comprises a translation driving element (2222), a seat body (2223), and a plurality of rotation driving elements (2224), the plurality of driving wheels (2221) are rotationally arranged on the seat body (2223), an output end of the translation driving element (2222) is connected to the seat body (2223), and the plurality of rotation driving elements (2224) are arranged on the seat body (2223), and an output end of each of the rotation driving elements (2224) is connected to the driving wheel (2221) in one-to-one correspondence.

7. The bending apparatus according to claim 1, wherein Further comprising a feeding mechanism (1), the feeding mechanism (1) comprises: A transfer platform (12) provided with at least one carrier plate (11); A first feeding driving element (13) connected to the transfer platform (12) and used for driving the transfer platform (12) to move along a third direction; and A second feeding driving element (14) used for driving the transfer platform (12) to move along a first direction.

8. The bending apparatus according to claim 7, wherein The feeding mechanism (1) further comprises a lifting assembly (15) used for driving the transfer platform (12) to move along a second direction.

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