Bending apparatus and battery production system

Abstract

The utility model provides a kind of bending equipment and battery production system, it is related to battery technical field.Bending equipment includes clamping assembly, limiting component and bending assembly, clamping assembly is used to fix battery core;Limiting component includes first limiting block, second limiting block and limiting drive mechanism, limiting drive mechanism can drive at least one of first limiting block and second limiting block moves, to make first limiting block and second limiting block can be close to each other or away in first direction, first limiting block and second limiting block are used to limit for pole piece and battery protection plate;Bending assembly includes bending piece and bending drive mechanism, bending piece is used to be connected with battery protection plate, bending drive mechanism is connected with bending piece, bending drive mechanism can drive bending piece and battery protection plate rotate, to make pole piece bend.The utility model can solve the problem that pole piece is in the process of bending and the risk of deviation is greater.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a bending device and a battery production system. Background Technology

[0002] In the manufacturing process of steel-cased batteries, the electrode sheets need to be bent. Specifically, electrode sheets are welded to the battery protection plate and then to the battery cell. By bending the electrode sheets, the battery protection plate is made to fit onto the battery cell casing. The bending of the electrode sheets is generally carried out using bending equipment, which includes a fixing component, a bending block, and a tilting cylinder. The fixing component secures the battery cell, the bending block is connected to the tilting cylinder, and the bending block is attached to the battery protection plate. Then, the tilting cylinder drives the bending block to tilt, causing the battery protection plate to rotate, thereby bending the electrode sheets.

[0003] However, there is a significant risk of electrode misalignment during the bending process, which can cause a short circuit in the battery if the electrode misalignment is too large. Utility Model Content

[0004] In view of this, this application provides a bending device and a battery production system to solve, to some extent, the problem that the risk of electrode misalignment is relatively high during the electrode bending process, and that the battery will short-circuit when the electrode misalignment is too large.

[0005] According to one aspect of this application, a bending device is provided for bending electrode sheets in a battery. The battery further includes a battery cell and a battery protection board. The electrode sheets are respectively connected to the battery cell and the battery protection board. The bending device includes: A clamping assembly for securing the battery cell; A limiting component, comprising a first limiting block, a second limiting block, and a limiting drive mechanism, wherein the limiting drive mechanism is capable of driving at least one of the first limiting block and the second limiting block to move, so that the first limiting block and the second limiting block can move closer to or further away from each other in a first direction, wherein the first limiting block and the second limiting block are used to limit the electrode sheet; A bending assembly includes a bending element and a bending drive mechanism. The bending element is connected to the battery protection board, and the bending drive mechanism is connected to the bending element. The bending drive mechanism can drive the bending element and the battery protection board to rotate, so as to bend the electrode sheet.

[0006] Preferably, the limiting drive mechanism includes a first limiting drive member and a second limiting drive member. The first limiting drive member is connected to the first limiting block to drive the first limiting block to move along the first direction. The second limiting drive member is connected to the second limiting block to drive the second limiting block to move along the first direction.

[0007] Preferably, the first limiting block includes a first main body and a first limiting part connected together, and the second limiting block includes a second main body and a second limiting part connected together. The first limiting part and the second limiting part are arranged at intervals, and the first main body and the second main body are respectively connected to the first limiting drive member and the second limiting drive member.

[0008] Preferably, the battery protection plate includes a first surface and a second surface that are opposite to each other in a second direction, the bending member is used to contact the first surface, and the second direction intersects the first direction; The bending device further includes a pushing assembly, which includes a pushing drive mechanism and a pushing block. The pushing drive mechanism is connected to the pushing block to drive the pushing block to move along the second direction. The pushing block is used to contact the second surface.

[0009] Preferably, the pushing component further includes an adjustment mechanism, which is fixed to the pushing drive mechanism and connected to the pushing block to drive the pushing block to move along a third direction, the third direction intersecting a plane determined by the first direction and the second direction.

[0010] Preferably, the bending device further includes a conveying mechanism, which is connected to the bending drive mechanism and is capable of driving the bending drive mechanism to move.

[0011] Preferably, the conveying mechanism includes a first conveying drive, a second conveying drive, and a third conveying drive. The first conveying drive is connected to the second conveying drive to drive the second conveying drive to move along the first direction. The second conveying drive is connected to the third conveying drive to drive the third conveying drive to move along the third direction. The third conveying drive is connected to the bending drive mechanism to drive the bending drive mechanism to move along the second direction.

[0012] Preferably, the bending assembly further includes a torque sensor, one end of which is connected to the bending drive mechanism in the first direction, and the other end of which is connected to the bending member in the first direction.

[0013] Preferably, the bending device further includes a pre-folding assembly, which includes a pre-folding block and a pre-folding driving mechanism connected to each other. The pre-folding driving mechanism can drive the pre-folding block to move along a predetermined direction, which intersects a plane determined by the first direction and the second direction. One end of the pre-folding block away from the pre-folding driving mechanism is used to abut against the battery protection board. In the direction from the end of the pre-folding block near the pre-folding drive mechanism to the end of the pre-folding block away from the pre-folding drive mechanism, the size of the pre-folding block gradually decreases in the third direction.

[0014] According to another aspect of this application, a battery production system is provided, the battery production system including the bending equipment described above.

[0015] When the bending device of this application is used, the battery cell is fixed on the clamping assembly, and the battery protection plate and the electrode are located between the first limiting block and the second limiting block. Before bending, the limiting drive mechanism brings the first limiting block and the second limiting block closer to each other in a first direction, thereby limiting the electrode. Then, the bent piece is connected to the battery protection plate. During bending, the bending drive mechanism drives the bent piece to rotate, thereby rotating the battery protection plate and achieving the bending of the electrode. During the electrode bending process, the electrode is located between the first limiting block and the second limiting block, which can limit the electrode to reduce the risk of electrode misalignment, thereby reducing the risk of battery short circuit. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional structural diagram of the bending equipment is shown. Figure 2 A diagram showing the relative positions of the clamping assembly and the limiting assembly is provided. Figure 3 Show Figure 2 Enlarged view of section A; Figure 4 A diagram showing the relative positions of the pushing component and the pre-folding component is provided. Figure 5 A diagram showing the relative positions of the bending assembly and the conveying assembly is provided. Figure 6 A schematic diagram of the clamping assembly is shown. Figure 7 The diagram shows the relative positions of the first limiting block, the second limiting block, and the battery protection board before bending. Figure 8 This diagram shows the relative positions of the push block and the battery protection board when they come into contact. Figure 9The diagram shows the relative positions of the battery protection board, pre-bending block, and bending component during the electrode bending process. Figure 10 The diagram shows the relative positions of the battery protection board and the bent part when the electrode sheet is bent into place.

[0018] Icons: 1-Clamping assembly; 11-Mounting plate; 12-First clamping block; 13-Second clamping block; 14-First adapter block; 15-Second adapter block; 16-Slider; 17-Slide rail; 18-Spring; 2-Limiting assembly; 21-First limiting block; 211-First main body; 212-First limiting part; 213-Second connecting hole; 22-Second limiting block; 221-Second main body; 222-Second limiting part; 23-First limiting drive; 24-Second limiting drive; 25-Connecting block; 3-Bending assembly; 31-Bending part; 32-Bending drive Mechanism; 33-Torque sensor; 34-Connecting block; 4-Pushing assembly; 41-Pushing drive mechanism; 42-Pushing block; 43-Adjustment mechanism; 5-Pre-folding assembly; 51-Pre-folding block; 52-Pre-folding drive mechanism; 6-Battery; 61-Cell; 62-Battery protection board; 63-Electrode; 71-Base plate; 72-Support block; 73-First fixing plate; 74-Second fixing plate; 8-Transporting mechanism; 81-First transport drive component; 82-Second transport drive component; 83-Third transport drive component; L1-First direction; L2-Second direction; L3-Third direction. Detailed Implementation

[0019] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0020] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0021] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0022] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0023] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0024] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0025] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0026] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0027] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0028] The following will combine Figures 1 to 10 The bending device of this application is described in which the first direction L1 intersects the second direction L2, and the third direction L3 intersects the plane determined by the first direction L1 and the second direction L2. The intersection is preferably perpendicular. The bending device is described below in conjunction with the case where the first direction L1, the second direction L2 and the third direction L3 are perpendicular to each other.

[0029] According to one aspect of this application, a bending device is provided for bending electrode sheets 63 in a battery 6. The battery 6 also includes a cell 61 and a battery protection board 62. When the electrode sheets 63 are not bent, ... Figure 7 As shown, electrode 63 is connected to battery cell 61 and battery protection board 62 respectively. Battery protection board 62 stands vertically above battery cell 61, and part of electrode 63 is located between battery cell 61 and battery protection board 62. When electrode 63 is bent, the part of electrode 63 located between battery cell 61 and battery protection board 62 bends.

[0030] like Figures 1 to 6As shown, the bending device includes a clamping assembly 1, a limiting assembly 2, and a bending assembly 3. The clamping assembly 1 is used to fix the battery cell 61. The limiting assembly 2 includes a first limiting block 21, a second limiting block 22, and a limiting drive mechanism. The limiting drive mechanism can drive at least one of the first limiting block 21 and the second limiting block 22 to move, so that the first limiting block 21 and the second limiting block 22 can move closer to or further away from each other in a first direction L1. The first limiting block 21 and the second limiting block 22 are used to limit the electrode 63 and the battery protection plate 62. The bending assembly 3 includes a bending member 31 and a bending drive mechanism 32. The bending member 31 is used to connect with the battery protection plate 62, and the bending drive mechanism 32 is connected with the bending member 31. The bending drive mechanism 32 can drive the bending member 31 and the battery protection plate 62 to rotate, so that the electrode 63 is bent.

[0031] When the bending device of this application is used, the battery cell 61 in the battery 6 is fixed on the clamping assembly 1. The battery protection plate 62 and the electrode 63 are located between the first limiting block 21 and the second limiting block 22. Before bending, the limiting drive mechanism brings the first limiting block 21 and the second limiting block 22 closer to each other in the first direction L1, thereby limiting the electrode 63. Then, the bending member 31 is connected to the battery protection plate 62. During bending, the bending drive mechanism 32 drives the bending member 31 to rotate, thereby rotating the battery protection plate 62 and bending the electrode 63. During the bending process of the electrode 63, the electrode 63 is located between the first limiting block 21 and the second limiting block 22. The first limiting block 21 and the second limiting block 22 can limit the electrode 63 to reduce the risk of electrode 63 misalignment, thereby reducing the risk of battery short circuit.

[0032] In addition, the battery protection plate 62 includes a first surface and a second surface that are opposite to each other in the second direction L2, and the bending member 31 is used to contact the first surface so that the bending member 31 can adsorb the battery protection plate 62.

[0033] Optionally, the bent part 31 has an adsorption cavity, and an adsorption hole is provided on the side of the bent part 31 facing the battery protection plate 62. The bent part 31 also has a mounting hole. Both the adsorption hole and the mounting hole are connected to the adsorption cavity. The mounting hole can be connected to a vacuum pump through a pipe, so that the bent part 31 can adsorb the battery protection plate 62.

[0034] Alternatively, the bending member 31 is not limited to the above-described form. The bending member 31 may also adopt other structures that can adsorb the battery protection plate 62 or clamp the bending member 31.

[0035] like Figure 6As shown, the clamping assembly 1 includes a mounting plate 11, a first clamping block 12, a second clamping block 13, a first adapter block 14, a second adapter block 15, a slider 16, a slide rail 17, and a spring 18. The first clamping block 12, the slide rail 17, and the first adapter block 14 are fixed on the mounting plate 11. The slide rail 17 extends along a first direction L1. The slider 16 is disposed on the slide rail 17 and connected to the second adapter block 15. The second clamping block 13 is fixed on the second adapter block 15. One end of the spring 18 abuts against the first adapter block 14, and the other end abuts against the second adapter block 15. The spring 18 is in a compressed state, which allows the spring 18 to apply a force toward the first clamping block 12 to the second adapter block 15 and the second clamping block 13, thereby enabling the first clamping block 12 and the second clamping block 13 to clamp the battery cell 61.

[0036] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, the bending device includes a base plate 71, a support block 72, a first fixing plate 73, and a second fixing plate 74. The base plate 71 is fixed to the first fixing plate 73 by bolts. The base plate 71 has a mounting groove, and part of the support block 72 is located in the mounting groove. The support block 72 is connected to the base plate 71 by bolts. The limiting drive mechanism includes a first limiting drive member 23 and a second limiting drive member 24. The first limiting drive member 23 is fixed to the support block 72 and is connected to the first limiting block 21 to drive the first limiting block 21 to move along the first direction L1. The second limiting drive member 24 is fixed to the second fixing plate 74 and is connected to the second limiting block 22 to drive the second limiting block 22 to move along the first direction L1. In this way, both the first limiting block 21 and the second limiting block 22 can move, thereby achieving the limiting of the electrode sheet 63.

[0037] Optionally, the limit drive mechanism may also be provided with only one drive member, which drives the first limit block 21 or the second limit block 22 to move along the first direction L1, so that the first limit block 21 and the second limit block 22 move closer to or further away from each other in the first direction L1.

[0038] like Figure 2 and Figure 3 As shown, the limiting component 2 also includes a connecting block 25, which is connected to the first limiting drive component 23. The connecting block 25 has a first connecting hole, and the first limiting block 21 has a second connecting hole 213. The size of the second connecting hole 213 in the first direction L1 is larger than the diameter of the first connecting hole. By passing a bolt through the first connecting hole and the second connecting hole 213, the first limiting block 21 can be fixed. In addition, the position of the first limiting block 21 can be adjusted so that different positions of the second connecting hole 213 communicate with the first connecting hole, thereby adjusting the position of the first limiting block 21.

[0039] Optionally, both the first limit drive 23 and the second limit drive 24 can be cylinders.

[0040] like Figure 3 As shown, the first limiting block 21 includes a first main body 211 and a first limiting part 212 connected together. The first main body 211 has the aforementioned second connecting hole 213. The second limiting block 22 includes a second main body 221 and a second limiting part 222 connected together. The first limiting part 212 and the second limiting part 222 are arranged at intervals along the first direction L1. The first main body 211 is connected to the first limiting drive member 23, so that the first limiting drive member 23 can drive the first limiting block 21 to move. The second main body 221 is connected to the second limiting drive member 24, so that the second limiting drive member 24 can drive the second limiting block 22 to move. The first limiting part 212 and the second limiting part 222 can limit the electrode 63 during the bending process of the electrode 63.

[0041] In the embodiments of this application, such as Figure 1 and Figure 4 As shown, the bending device also includes a pushing assembly 4, which includes a pushing drive mechanism 41 and a pushing block 42. The pushing drive mechanism 41 can be fixed on the second fixed plate 74. The pushing drive mechanism 41 is connected to the pushing block 42 to drive the pushing block 42 to move in the second direction L2. The pushing block 42 is used to contact the second surface. Thus, before bending, the pushing drive mechanism 41 can drive the pushing block 42 to move to push the battery protection plate 62 onto the bending member 31. At this time, the relative positions of the battery protection plate 62, the bending member 31, and the pushing block 42 are as follows: Figure 8 As shown.

[0042] Furthermore, the actuating component 4 also includes an adjusting mechanism 43, which is fixed to the actuating drive mechanism 41 and connected to the actuating block 42 to drive the actuating block 42 to move along a third direction L3. In this way, the actuating block 42 can move along a third direction L3 under the action of the adjusting mechanism 43 to avoid interference between the actuating block 42 and the pre-folding component 5 described below.

[0043] Optionally, both the drive mechanism 41 and the adjustment mechanism 43 can be cylinders.

[0044] like Figure 1 and Figure 4As shown, the bending device also includes a pre-bending assembly 5, which includes a pre-bending block 51 and a pre-bending drive mechanism 52 connected to each other. The pre-bending drive mechanism 52 is fixed on the second fixed plate 74 and can drive the pre-bending block 51 to move along a predetermined direction. The predetermined direction intersects the plane determined by the first direction L1 and the second direction L2. The end of the pre-bending block 51 away from the pre-bending drive mechanism 52 is used to abut against the electrode 63. In the direction from the end of the pre-bending block 51 near the pre-bending drive mechanism 52 to the end of the pre-bending block 51 away from the pre-bending drive mechanism 52, the size of the pre-bending block 51 gradually decreases in the third direction L3. Thus, the end of the pre-folding block 51 furthest from the pre-folding drive mechanism 52 is a pointed tip. During bending, the pre-folding block 51 moves until its pointed tip abuts against the electrode 63. Then, the bending member 31 drives the battery protection plate 62 to rotate, causing the electrode 63 to bend at the point where it abuts against the pointed tip of the pre-folding block 51. At this time, the relative positions of the pre-folding block 51, the battery protection plate 62, and the bending member 31 are as follows: Figure 9 As shown. After bending at a certain angle, the pre-bending block 51 moves out, and the bending component 31 drives the battery protection board 62 to continue rotating, thereby completing the bending of the electrode sheet 63. At this time, the relative positions of the battery protection board 62 and the bending component 31 are as follows. Figure 10 As shown.

[0045] Optionally, the pre-folding drive mechanism 52 can be a cylinder.

[0046] In the embodiments of this application, such as Figure 1 and Figure 5 As shown, the bending equipment also includes a conveying mechanism 8, which is connected to the bending drive mechanism 32. The conveying mechanism 8 can drive the bending drive mechanism 32 to move, thereby moving the bent part 31. In this way, the position of the bent part 31 can be adjusted by the conveying mechanism 8 so that the bent part 31 can adhere to the battery protection board 62.

[0047] Furthermore, the conveying mechanism 8 includes a first conveying drive 81, a second conveying drive 82, and a third conveying drive 83. The first conveying drive 81 is connected to the second conveying drive 82 to drive the second conveying drive 82 to move along a first direction L1. The second conveying drive 82 is connected to the third conveying drive 83 to drive the third conveying drive 83 to move along a third direction L3. The third conveying drive 83 is connected to the bending drive mechanism 32 to drive the bending drive mechanism 32 to move along a second direction L2. In this way, the position of the bending member 31 in the first direction L1, the second direction L2, and the third direction L3 can be adjusted to ensure that the bending member 31 can adsorb the battery protection board 62.

[0048] Optionally, the first transport drive 81, the second transport drive 82, and the third transport drive 83 can all be servo modules.

[0049] In addition, the bending assembly 3 also includes a torque sensor 33. One end of the torque sensor 33 in the first direction L1 is connected to the bending drive mechanism 32, and the other end of the torque sensor 33 in the first direction L1 is connected to the bending member 31 through the connecting block 34. The bending assembly 3 can detect the torque applied to the battery protection board 62. When the torque exceeds a predetermined value, the bending drive mechanism 32 stops rotating.

[0050] When the bending device of this application is used, the battery protection plate 62 and the electrode 63 are located between the first limiting block 21 and the second limiting block 22. The first limiting block 21 and the second limiting block 22 are close to each other so that the first limiting block 21 and the second limiting block 22 can limit the electrode 63. Then, the bending piece 31 is moved to the position corresponding to the battery protection plate 62 under the drive of the conveying mechanism 8. The pushing block 42 is moved along the third direction L3 to the position corresponding to the battery protection plate 62 under the drive of the adjusting mechanism 43. Then, the pushing block 42 is moved along the second direction L2 under the drive of the pushing drive mechanism 41 to push the battery protection plate 62 onto the bending piece 31. The bending piece 31 activates vacuum adsorption, and the pushing block 42 resets. Then, the pre-folding block 51 moves to abut against the electrode 63, and the bending drive mechanism 32 drives the bending component 31 to rotate at a certain angle, so that the battery protection board 62 rotates at a certain angle, thereby bending the electrode 63 at a certain angle. Then, the pre-folding block 51 is retracted, and the bending drive mechanism 32 drives the bending component 31 to continue rotating until the electrode 63 is bent into place, thus completing the bending of the electrode 63.

[0051] According to another aspect of this application, a battery production system is provided, which includes the bending equipment described above and has the same technical effects as the bending equipment described above, which will not be repeated here.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bending device for bending electrode sheets in a battery, the battery further comprising a cell and a battery protection board, the electrode sheets being connected to the cell and the battery protection board respectively, characterized in that, The bending equipment includes: A clamping assembly for securing the battery cell; A limiting component, comprising a first limiting block, a second limiting block, and a limiting drive mechanism, wherein the limiting drive mechanism is capable of driving at least one of the first limiting block and the second limiting block to move, so that the first limiting block and the second limiting block can move closer to or further away from each other in a first direction, wherein the first limiting block and the second limiting block are used to limit the electrode sheet; A bending assembly includes a bending element and a bending drive mechanism. The bending element is connected to the battery protection board, and the bending drive mechanism is connected to the bending element. The bending drive mechanism can drive the bending element and the battery protection board to rotate, so as to bend the electrode sheet.

2. The bending equipment according to claim 1, characterized in that, The limiting drive mechanism includes a first limiting drive member and a second limiting drive member. The first limiting drive member is connected to the first limiting block to drive the first limiting block to move along the first direction. The second limiting drive member is connected to the second limiting block to drive the second limiting block to move along the first direction.

3. The bending equipment according to claim 2, characterized in that, The first limiting block includes a first main body and a first limiting part connected to each other, and the second limiting block includes a second main body and a second limiting part connected to each other. The first limiting part and the second limiting part are arranged at intervals, and the first main body and the second main body are respectively connected to the first limiting drive member and the second limiting drive member.

4. The bending equipment according to claim 3, characterized in that, The battery protection plate includes a first surface and a second surface that are opposite to each other in a second direction, the bending member is used to contact the first surface, and the second direction intersects the first direction; The bending device further includes a pushing assembly, which includes a pushing drive mechanism and a pushing block. The pushing drive mechanism is connected to the pushing block to drive the pushing block to move along the second direction. The pushing block is used to contact the second surface.

5. The bending equipment according to claim 4, characterized in that, The pushing component further includes an adjustment mechanism, which is fixed to the pushing drive mechanism and connected to the pushing block to drive the pushing block to move along a third direction, which intersects a plane defined by the first direction and the second direction.

6. The bending equipment according to claim 5, characterized in that, The bending equipment also includes a conveying mechanism, which is connected to the bending drive mechanism and can drive the bending drive mechanism to move.

7. The bending equipment according to claim 6, characterized in that, The conveying mechanism includes a first conveying drive, a second conveying drive, and a third conveying drive. The first conveying drive is connected to the second conveying drive to drive the second conveying drive to move along the first direction. The second conveying drive is connected to the third conveying drive to drive the third conveying drive to move along the third direction. The third conveying drive is connected to the bending drive mechanism to drive the bending drive mechanism to move along the second direction.

8. The bending equipment according to claim 1, characterized in that, The bending assembly further includes a torque sensor, one end of which is connected to the bending drive mechanism in the first direction, and the other end of which is connected to the bending member in the first direction.

9. The bending equipment according to claim 5, characterized in that, The bending device further includes a pre-bending assembly, which includes a pre-bending block and a pre-bending drive mechanism connected to each other. The pre-bending drive mechanism can drive the pre-bending block to move along a predetermined direction. The predetermined direction intersects the plane determined by the first direction and the second direction. One end of the pre-bending block away from the pre-bending drive mechanism is used to abut against the electrode sheet. In the direction from the end of the pre-folding block near the pre-folding drive mechanism to the end of the pre-folding block away from the pre-folding drive mechanism, the size of the pre-folding block gradually decreases in the third direction.

10. A battery production system, characterized in that, The battery production system includes the bending equipment according to any one of claims 1-9.

Images