Stacking equipment and production lines

Abstract

This application relates to the field of battery manufacturing technology, providing a stacking device and production line. The stacking device includes a stacking platform, a support mechanism, a positioning mechanism, a limiting mechanism, a first clamping mechanism, a second clamping mechanism, and a pushing mechanism. The support mechanism is disposed on the stacking platform and can support individual battery cells; the positioning mechanism is disposed on the stacking platform; the limiting mechanism is disposed on the stacking platform; the first clamping mechanism is movable relative to the stacking platform and can limit the individual battery cells along a first direction with the positioning mechanism; the second clamping mechanism is movable relative to the stacking platform and can limit the individual battery cells along a second direction with the support mechanism; the pushing mechanism is movable relative to the stacking platform and can push the individual battery cells towards the limiting mechanism along a third direction; wherein the first direction, the second direction, and the third direction are perpendicular to each other. Through the coordinated design of the support mechanism, positioning mechanism, limiting mechanism, first clamping mechanism, second clamping mechanism, and pushing mechanism, the positioning accuracy of battery cell stacking is significantly improved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and more particularly to a stacking device and production line. Background Technology

[0002] In related technologies, a robotic gripper picks up individual battery cells and places them on a stacking platform, where the robotic gripper then completes the stacking process. However, deviations in the gripping position can lead to inconsistent positions of the battery cells on the stacking platform, thus affecting stacking accuracy. Utility Model Content

[0003] In view of this, embodiments of this application provide a stacking device and production line that can improve stacking accuracy.

[0004] The technical solution of this application embodiment is implemented as follows: This application provides a stacking device for stacking multiple battery cells into a battery module, the stacking device comprising: Stacking platform; A support mechanism, disposed on the stacking platform, is capable of supporting the individual battery cells; A positioning mechanism is provided on the stacking platform; A limiting mechanism is provided on the stacking platform; The first clamping mechanism is movable relative to the stacking platform and can limit the battery cell along the first direction with the positioning mechanism. The second clamping mechanism is movable relative to the stacking platform and can limit the battery cell along the second direction with the support mechanism. The propulsion mechanism is movable relative to the stacking platform and can push the battery cell toward the limiting mechanism in a third direction; Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

[0005] In this embodiment, the positioning accuracy of battery cell stacking is significantly improved through the coordinated design of the conveying mechanism, supporting mechanism, positioning mechanism, limiting mechanism, first clamping mechanism, second clamping mechanism, and pushing mechanism. The supporting mechanism serves as the positioning reference for the battery cells along the second direction. Working with the second clamping mechanism, it aligns the battery cells along a third direction, for example, aligning their end faces and limiting displacement along the second direction. The positioning mechanism serves as the positioning reference for the battery cells along the first direction. Working with the first clamping mechanism, it aligns the battery cells along a third direction, for example, aligning their sides. The limiting mechanism, in conjunction with the pushing mechanism, allows the battery cells to be stacked sequentially along the third direction. This reduces the possibility of offset or tilting during battery cell stacking, significantly improving stacking accuracy, reducing redundant production processes, streamlining production cycle time, and increasing stacking efficiency, thereby improving overall production efficiency. For example, it can improve the consistency of the end face flatness and side face flatness of the battery cells; exemplarily, the end face flatness and side face flatness of each stacked battery cell can be less than 0.1 mm.

[0006] In some embodiments, at least one of the first clamping mechanism and the second clamping mechanism includes a rolling element capable of rolling abutting against the battery cell.

[0007] By incorporating rolling elements to replace planar contact with rolling contact, dynamic support is provided for the battery cells. This reduces frictional resistance, improves clamping stability, reduces pressure on the battery cells, and lowers the likelihood of surface damage, wear particles, or particle detachment caused by pressure concentration. Furthermore, it reduces mechanical errors and vibration, improves positioning accuracy, and consequently, enhances stacking accuracy.

[0008] In some embodiments, the rolling element is a ball, roller, or wheel.

[0009] Thus, by utilizing the low friction characteristics and motion stability of balls, rollers, or wheels, curved or spherical contact replaces planar contact, facilitating processing and installation.

[0010] In some embodiments, the first clamping mechanism includes: A first sliding seat is movably disposed on the stacking platform; The first clamping member is movably disposed on the first sliding seat, and the rolling member is rotatably disposed on the first clamping member; A first clamping drive is driven to connect with the first clamping member so that the first clamping member can move along the first direction; A first moving drive is driven to connect with the first sliding block, so that the first sliding block can move along the third direction.

[0011] In this embodiment, the first sliding block is moved along a third direction by the first moving drive member, and the position of the first clamping member along the third direction is adjusted so that the first clamping member moves to a position that facilitates contact with at least two battery cells. The first clamping drive member enables the first clamping member to drive the rolling member to move along a first direction, pushing the side of the battery cell.

[0012] In some embodiments, the second clamping mechanism includes: The second sliding seat is disposed in the propulsion mechanism; The second clamping member is movably disposed on the second sliding seat, and the rolling member is rotatably disposed on the second clamping member; The second clamping drive is driven to connect with the second clamping member so that the second clamping member can move along the second direction.

[0013] Thus, the second sliding seat is set on the propulsion mechanism. When the propulsion mechanism moves in a third direction, the second sliding seat can follow the propulsion mechanism and move in the third direction, which can shorten the production cycle and improve production efficiency.

[0014] In some embodiments, the second clamping mechanism further includes: The second moving drive is driven to connect with the second sliding seat so that the second sliding seat can move along the third direction.

[0015] In this embodiment, the second sliding block is moved along a third direction by the second moving drive member, and the position of the second clamping member along the third direction is adjusted so that the second clamping member moves to a position that is convenient for pressing at least two battery cells.

[0016] In some embodiments, the propulsion mechanism includes: A pusher seat is movably mounted on the stacking platform; A propulsion component, disposed on the propulsion base, is capable of contacting the battery cell; A propulsion drive is driven to the propulsion seat so that the propulsion seat can move along the third direction.

[0017] In this embodiment, the battery cells are moved along a third direction by a propulsion drive, so that the large surfaces of adjacent battery cells are put together to achieve stacking.

[0018] In some embodiments, the propulsion mechanism further includes: A third clamping drive is driven to connect with the pusher so that the pusher can move along the third direction.

[0019] In this embodiment, the third clamping drive may include a servo motor. The servo motor has high positioning accuracy, stable operation and long life. It can improve the displacement control accuracy of the pusher along the third direction, thereby improving the stacking accuracy and reducing the possibility of damaging the battery cells.

[0020] In some embodiments, the stacking device further includes a ranging module for measuring the distance between the battery cell to be stacked and the already stacked battery cells located on the stacking platform; the third clamping drive includes a servo motor that can control the stroke of the propulsion component based on the information from the ranging module.

[0021] In this embodiment, the ranging module can collect the distance data between the battery cells to be stacked and the already stacked battery cells on the support mechanism in real time. This allows the servo motor of the third clamping drive to accurately control the stroke of the pusher based on the distance data collected by the ranging module. This reduces the possibility of damage to the battery cells caused by excessive push distance of the servo motor, and reduces the possibility of poor battery cell adhesion caused by insufficient push distance.

[0022] In some embodiments, the second clamping mechanism is disposed on the propulsion seat.

[0023] In this way, when the pusher moves relative to the stacking platform, it can drive the second clamping mechanism to move together, shortening the production cycle and improving production efficiency.

[0024] In some embodiments, the positioning mechanism is adjustablely disposed on the stacking platform.

[0025] Thus, before the stacking operation begins, the positioning mechanism can adjust its position to accommodate battery cells of different sizes along the first direction.

[0026] In some embodiments, the terminal post of the battery cell is disposed on the end face of the battery cell along the second direction, the second clamping mechanism and the supporting mechanism limit the end face of the battery cell along the second direction, and the second clamping mechanism can abut against the end face or terminal post of the battery cell; the first clamping mechanism and the positioning mechanism limit the side of the battery cell along the first direction; the pushing mechanism abuts against the large surface of the battery cell and pushes the battery cell toward the limiting mechanism along the third direction.

[0027] In this way, the large surfaces of adjacent battery cells fit together, and the end faces and sides of each battery cell can be aligned.

[0028] This application also provides a battery production line, including: The stacking device described in any one of the embodiments of this application.

[0029] The battery production line provided in this application embodiment has the same technical effects as the aforementioned stacking equipment because it includes the stacking equipment described above.

[0030] In some embodiments, the battery production line further includes: The base includes two side-by-side support frames, each of which is provided with one of the stacking devices, which are movable along the corresponding support frame.

[0031] Two stacked devices can share two conveyor lines, which can save space and reduce the investment cost of the production line; the two conveyor lines, in coordination with the operating cycle of the two stacked devices, can improve production efficiency and significantly increase capacity.

[0032] In some embodiments, the battery production line further includes: A transport mechanism is used to transport the battery cell to the support mechanism.

[0033] By using a handling mechanism to move individual battery cells, stacking efficiency can be improved, enabling automated production.

[0034] In some embodiments, the battery production line further includes: The frame, on which the conveying mechanism is mounted.

[0035] In this way, the handling mechanism is suspended on the frame, which does not occupy the ground area and facilitates the overall relocation of the battery production line.

[0036] In some embodiments, the transport mechanism is a spider-hand robot.

[0037] Spider-arm robots are fast, precise, compact, and low-maintenance, making them suitable for production line operations. Using spider-arm robots can reduce the likelihood of damage to the surface of battery cells during gripping, such as minimizing damage to the blue film on the battery cell surface.

[0038] In some embodiments, the battery production line further includes: The wheels are mounted on the base. A fixing seat is provided on the base.

[0039] By incorporating casters, the base can be easily moved, thereby adjusting the position of the stacking equipment. This facilitates coordination between the stacking equipment and other conveyor lines, such as the first and second conveyor lines, and allows for flexible layout adjustments. Once the production line layout is adjusted, a fixed base can be installed to secure the base, reducing the possibility of displacement or shaking of the base during operation, which could affect the stacking accuracy of individual battery cells. Attached Figure Description

[0040] Figure 1This is a schematic diagram of the structure of a battery production line according to one embodiment of this application; Figure 2 for Figure 1 A simplified diagram of the stacking equipment and base in the battery production line shown from another perspective; Figure 3 This is a schematic diagram of the stacking device in one embodiment of this application; Figure 4 for Figure 1 A partially enlarged schematic diagram of the battery production line from another perspective. Figure 5 This is a schematic diagram of the structure of the second clamping mechanism and the propulsion mechanism in one embodiment of this application; Figure 6 This is a partial structural diagram of the second clamping mechanism; Figure 7 This is a partial structural schematic diagram of a stacking device according to an embodiment of this application; Figure 8 for Figure 7 A magnified structural diagram at point B.

[0041] Explanation of reference numerals in the attached figures: 100. Stacking equipment; D. Battery cell; D1. End face; D2. Side face; D3. Large surface; 10. Stacking platform; 20. Support mechanism; 30. Positioning mechanism; 40. Limiting mechanism; Y. First direction; Z. Second direction; X. Third direction; 101. Rolling element; 50. First clamping mechanism; 51. First sliding seat; 52. First clamping member; 53. First clamping drive member; 54. First moving drive member; 60. Second clamping mechanism; 61. Second sliding seat; 6 1a. First mounting hole; 62. Second clamping member; 621. Clamping part; 63. Second clamping drive member; 64. Second moving drive member; 70. Pushing mechanism; 71. Pushing seat; 72. Pushing member; 73. Pushing drive member; 74. Third clamping drive member; 80. Distance measuring module; 90. Drive mechanism; 1000. Battery production line; 200. Base; 210. Support frame; 220. Handling mechanism; 230. Frame; 240. Traveling wheel; 250. Fixed seat. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0044] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0045] In the description of this specification, references to terms such as "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of those different embodiments or examples.

[0046] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0047] In related technologies, a robotic gripper picks up individual battery cells and places them on a stacking platform, where the robotic gripper then completes the stacking process. However, deviations in the gripping position can lead to inconsistent positions of the battery cells on the stacking platform, thus affecting stacking accuracy.

[0048] In view of this, embodiments of this application provide a stacking device that can improve stacking accuracy. The stacking device is used to stack multiple battery cells into a battery module.

[0049] This application also provides a battery production line. Please refer to [link / reference]. Figure 1 The battery production line 1000 includes the stacking equipment 100 of any of the embodiments of this application.

[0050] In some embodiments, please refer to Figure 1 and Figure 2 The battery production line 1000 also includes a base 200, which includes two side-by-side support frames 210. Each support frame 210 is equipped with a stacking device 100, which can move along the corresponding support frame 210.

[0051] by Figure 1For example, the base 200 can be divided into a stacking area and an unloading area. Figure 1 The left side is the stacking area, and the right side is the unloading area. Both stacking devices 100 complete the stacking of individual battery cells D in the stacking area on the left to form a battery module; then the stacking device 100 moves to the right side along the corresponding support frame 210, and the unloading robot removes the battery module from the stacking device 100.

[0052] As an example, the battery production line 1000 also includes a first conveyor line for conveying unstacked battery cells D. The battery production line 1000 also includes a second conveyor line for conveying battery modules formed by stacking the battery cells. The battery production line 1000 also includes other conveyor lines, which are not listed here.

[0053] Two stacked devices 100 can share two conveyor lines, which can save space and reduce the investment cost of the production line; the two conveyor lines, in conjunction with the operating cycle of the two stacked devices 100, can improve production efficiency and significantly increase capacity.

[0054] As an example, in a single stacking operation, the individual battery cells D stacked by the same stacking device 100 have the same specifications, that is, the same structural shape and size.

[0055] In some embodiments, please refer to Figure 2 The battery production line 1000 also includes wheels 240 and a fixed base 250. Both wheels 240 and fixed base 250 are mounted on the base 200. The wheels 240 facilitate the movement of the base 200, thereby adjusting the position of the stacking equipment 100. This allows the stacking equipment 100 to coordinate with other conveyor lines, such as the first and second conveyor lines, and enables flexible layout adjustments. After the production line layout is adjusted, the fixed base 250 secures the position of the base 200, reducing the possibility of displacement or shaking of the base 200 during operation, which could affect the stacking accuracy of the individual battery cells.

[0056] Please see Figure 3The stacking device 100 includes a stacking platform 10, a support mechanism 20, a positioning mechanism 30, a limiting mechanism 40, a first clamping mechanism 50, a second clamping mechanism 60, and a pushing mechanism 70. The support mechanism 20 is disposed on the stacking platform 10 and supports individual battery cells D; the positioning mechanism 30 is disposed on the stacking platform 10; the limiting mechanism 40 is disposed on the stacking platform 10; the first clamping mechanism 50 is movable relative to the stacking platform 10 and can limit the battery cell D along a first direction Y with the positioning mechanism 30; the second clamping mechanism 60 is movable relative to the stacking platform 10 and can limit the battery cell D along a second direction Z with the support mechanism 20; the pushing mechanism 70 is movable relative to the stacking platform 10 and can push the battery cell D towards the limiting mechanism 40 along a third direction X; wherein the first direction Y, the second direction Z, and the third direction X are all perpendicular to each other. The individual battery cells D are sequentially stacked along the third direction X to form a battery module.

[0057] For example, please refer to Figure 4 The battery production line 1000 also includes a transport mechanism 220, which is used to transport the battery cells D to the support mechanism 20. By transporting the battery cells D through the transport mechanism 220, stacking efficiency can be improved and automated production can be achieved.

[0058] Understandably, the conveying mechanism 220 can grasp a single battery cell D at a time, or it can grasp two or more battery cells D. As an example, when the conveying mechanism 220 grasps multiple battery cells D at a time, the grasped battery cells D are fixed as a whole, and the sides D2 and the end faces D1 are aligned.

[0059] For example, please refer to Figure 4 The handling mechanism 220 is a spider-hand robot. Spider-hand robots are fast, precise in positioning, compact in structure, and low in maintenance costs, making them suitable for production line operations. Using a spider-hand robot can reduce the possibility of damage to the surface of the battery cell D during gripping, for example, reducing damage to the blue film on the surface of the battery cell D. Furthermore, the spider-hand robot is equipped with a rotating gripping arm, which is used to adjust the orientation of the battery cell D to accommodate gripping cells of different sizes and to adapt to the polarity orientation of the battery cell. As an example, the rotating gripping arm can rotate 180°. In other embodiments, the rotating gripping arm can rotate 270°, 360°, etc., depending on the specific configuration for coordination with other conveyor lines.

[0060] Furthermore, the spider-hand robot has the function of calibrating the orientation of individual battery cells D, so that the positive and negative terminals of individual battery cells D are in a preset relative position. For example, it can make the positive terminals of all stacked battery cells D be on the same side and the negative terminals on the same side.

[0061] Furthermore, the spider robot has an in-situ detection sensing mechanism for sensing individual battery cells D to monitor the gripping status of the spider robot.

[0062] Furthermore, the rotating gripper arm has a flexible layer that can reduce the pressure on the battery cell D when the rotating gripper arm contacts the battery cell D, such as reducing the pressure on the blue film on the surface of the battery cell D and reducing the possibility of local indentations on the surface of the battery cell D.

[0063] In some embodiments, combined with Figure 2 The battery production line 1000 also includes a frame 230, and a conveying mechanism 220 is mounted on the frame 230. In this way, the conveying mechanism 220 is suspended on the frame 230, which does not occupy ground space and facilitates the overall relocation of the battery production line 1000.

[0064] In some embodiments, the battery cell D includes a housing and an electrode assembly. The housing has multiple shell walls that enclose a receiving space within the housing, and the electrode assembly is disposed within the receiving space. End faces D1 are formed in the multiple shell walls. End face D1 refers to the surface of the shell wall where the electrode post or pressure relief valve is located. For example, two shell walls may be arranged opposite each other to form two end faces D1.

[0065] For example, please refer to Figure 4 The battery cell D is a square-shell battery cell, with a shape similar to a cuboid.

[0066] For example, please refer to Figure 4 The battery cell D has six shell walls. Two of the shell walls of the battery cell D are arranged opposite each other along a first direction Y to form two side faces D2. Two other shell walls of the battery cell D are arranged opposite each other along a second direction Z to form two end faces D1. Two shell walls are arranged opposite each other along a third direction X to form two large faces D3 of the battery cell D. The first direction Y, the second direction Z, and the third direction X are all perpendicular to each other, and the third direction X is the same as the height direction of the battery cell D.

[0067] As an example, a battery cell D includes two terminals disposed on the same end face D1 on the same side of the battery cell D. As an example, when stacked, end face D1 faces the second clamping mechanism 60. In other embodiments, end face D1 may also face the first clamping mechanism 50.

[0068] As an example, the terminal post of battery cell D is disposed on the end face D1 of battery cell D along the second direction Z. The second clamping mechanism 60 and the supporting mechanism 20 limit the end face D1 of battery cell D along the second direction Z, and the second clamping mechanism 60 can abut against the end face D1 of battery cell D. The first clamping mechanism 50 and the positioning mechanism 30 limit the side face D2 of battery cell D along the first direction Y; the pushing mechanism 70 abuts against the large surface D3 of battery cell D and pushes the battery cell D towards the limiting mechanism 40 along the third direction X. In this way, the large surfaces D3 of adjacent battery cells D are fitted together, and the end faces D1 and side faces D2 of each battery cell D can be aligned.

[0069] As an example, before the propulsion mechanism 70 pushes the battery cell D, when the transport mechanism 220 places the battery cell D on the support mechanism 20, there is a preset distance between the battery cell D to be stacked and the previously stacked battery cell D, for example, 15-25 mm (millimeters), such as 15 mm, 18 mm, 20 mm, 22 mm, or 25 mm. This reduces the possibility of the transport mechanism 220 accidentally touching the already stacked battery cell D, causing the battery cell D to shift or be structurally damaged.

[0070] In other embodiments, the second clamping mechanism 60 can abut against the terminal post of the battery cell D.

[0071] Understandably, the first clamping mechanism 50 can move to simultaneously abut against the sides D2 of at least two battery cells D, for example, against the side D2 of a battery cell D that is already stacked and the side D2 of a battery cell D that is being stacked, so that the stacked battery cell D is aligned with the already stacked battery cell D. This is repeated multiple times until the sides D2 of all stacked battery cells D are aligned. Similarly, the second clamping mechanism 60 can move to simultaneously abut against the end faces D1 of at least two battery cells D, for example, against the end face D1 of a battery cell D that is already stacked and the end face D1 of a battery cell D that is not yet stacked, so that the end faces D1 of all stacked battery cells D are aligned, which will not be elaborated further here.

[0072] The stacking platform 10 provides mounting positions for the support mechanism 20, positioning mechanism 30, limiting mechanism 40, first clamping mechanism 50, second clamping mechanism 60, and propulsion mechanism 70. As an example, the stacking platform 10 includes a support frame and a mounting plate, with the mounting plate supported on the support frame, so that the support frame and mounting plate form a structure of various shapes such as a cube to support other mechanisms.

[0073] The support mechanism 20 is fixed relative to the stacking platform 10 and serves as a positioning reference for the battery cells D along the second direction Z. This means all battery cells D abut against the support mechanism 20 along the second direction Z, aligning each battery cell D with its end face D1 facing the support mechanism 20 along the second direction Z. The second clamping mechanism 60 moves relative to the stacking platform 10 along the second direction Z, restricting displacement of the battery cells D along the second direction Z. This ensures alignment of the end faces D1 of each battery cell D, reducing the possibility of inconsistent battery cell heights.

[0074] As an example, the support mechanism 20 has a continuous support surface so that each battery cell D can move along the support surface and align with the end face D1 of the support mechanism 20.

[0075] As an example, the support mechanism 20 has two spaced-apart support plates that respectively support the two ends of the battery cell D along the first direction Y. Furthermore, the support plates have support surfaces.

[0076] Furthermore, the second clamping mechanism 60 has a first abutting surface to simultaneously abut the end face D1 of the battery cell D or simultaneously abut the terminal post of the battery cell D.

[0077] Furthermore, the second clamping mechanism 60 is capable of simultaneously abutting at least two battery cells D, that is, simultaneously abutting two, three, four or more battery cells D. The size of the first abutting surface is set according to the number of battery cells D simultaneously abutting and the size of the battery cells D, so that the length of the first abutting surface along the third direction X is sufficient to simultaneously abut at least two battery cells D, aligning the end faces D1 of the abutted battery cells D.

[0078] During the stacking process, the positioning mechanism 30 is fixed relative to the stacking platform 10, serving as a positioning reference for all battery cells D along the first direction Y. This means all battery cells D abut against the positioning mechanism 30 along the first direction Y, aligning their sides D2 towards the positioning mechanism 30. The first clamping mechanism 50 moves relative to the stacking platform 10 along the first direction Y, pushing the battery cells D towards the positioning mechanism 30, further aligning their sides D2. This reduces the possibility of lateral displacement of the battery cells D and improves stacking accuracy.

[0079] Furthermore, the positioning mechanism 30 is adjustablely disposed on the stacking table 10. Thus, before the stacking operation begins, the positioning mechanism 30 can adjust its position to accommodate battery cells D of different sizes along the first direction Y. For example, please refer to... Figure 4The stacking device 100 also includes a drive mechanism 90, which is disposed on the stacking platform 10 and is drivenly connected to the positioning mechanism 30 so that the positioning mechanism 30 can move along a first direction Y. Further, there are two drive mechanisms 90, which are spaced apart along a third direction X to accommodate the length of the positioning mechanism 30.

[0080] As an example, the positioning mechanism 30 has a continuous positioning surface so that each battery cell D can move along the positioning surface, so that each battery cell D can be aligned with the side D2 of the positioning mechanism 30.

[0081] Furthermore, the first clamping mechanism 50 has a second abutment surface to simultaneously abut against the side D2 of the battery cell D facing the first clamping mechanism 50.

[0082] Furthermore, the first clamping mechanism 50 is capable of simultaneously abutting at least two battery cells D, that is, simultaneously abutting two, three, four or more battery cells D. The size of the second abutting surface is set according to the number of battery cells D simultaneously abutting and the size of the battery cells D, so that the length of the second abutting surface along the third direction X is sufficient to simultaneously abut at least two battery cells D, aligning the sides D2 of the abutted battery cells D.

[0083] During the stacking process, the limiting mechanism 40 is fixed relative to the stacking platform 10 and can serve as a positioning reference for the large surface D3 of the stacked battery cell D. The pushing mechanism 70 pushes the battery cells D to be stacked toward the limiting mechanism 40 one by one, so that the large surface D3 of each battery cell D fits together, thereby realizing stacking.

[0084] As an example, the spider-like robot picks up battery cells D to be stacked from the conveyor line, rotates them 180°, and places them at a pre-stacking position on the support mechanism 20. This pre-stacking position is a predetermined distance from already stacked battery cells D, such as 15mm. The first clamping mechanism 50 and the pushing mechanism 70 move along the third direction X to the pre-stacking position. The first clamping mechanism 50 pushes the battery cells D to be stacked along the first direction Y, aligning them with the already stacked battery cells D using the positioning mechanism 30 as a positioning reference. The first clamping mechanism 50 presses down on the battery cells D to be stacked and the adjacent already stacked battery cells D. The second clamping mechanism 60 presses down on the battery cells D to be stacked and the adjacent already stacked battery cells D along the second direction Z. The pushing mechanism 70 pushes the battery cells D to be stacked along the third direction X, causing adjacent battery cells D to fit together, thus achieving stacking. The above steps are then repeated, and multiple battery cells D are stacked one by one to form a battery module.

[0085] The stacking equipment 100 and battery production line 1000 provided in this application significantly improve the positioning accuracy of stacked battery cells D through the coordinated design of the handling mechanism 220, support mechanism 20, positioning mechanism 30, limiting mechanism 40, first clamping mechanism 50, second clamping mechanism 60, and pushing mechanism 70. The support mechanism 20 serves as the positioning reference for battery cells D along the second direction Z. In conjunction with the second clamping mechanism 60, it aligns each battery cell D along the third direction X, for example, aligning the end face D1 of the battery cell D and limiting displacement of the battery cell D along the second direction Z. The positioning mechanism 30 serves as the positioning reference for battery cells D along the first direction Y. In conjunction with the first clamping mechanism 50, it aligns each battery cell D along the third direction X, for example, aligning the side face D2 of the battery cell D. The limiting mechanism 40, in conjunction with the pushing mechanism 70, allows each battery cell D to be stacked sequentially along the third direction X. This reduces the likelihood of misalignment or tilting during battery cell stacking, significantly improving the stacking accuracy of battery cells D. It also reduces redundant production processes, streamlines production cycles, and increases stacking efficiency, thereby improving overall production efficiency. For example, it can improve the flatness consistency of the end face D1 and the side face D2 of battery cells D. Exemplarily, it can ensure that the flatness of both the end face and side face of each stacked battery cell D is less than 0.1 mm.

[0086] In some embodiments, please refer to Figures 5 to 8 At least one of the first clamping mechanism 50 and the second clamping mechanism 60 includes a rolling element 101, which is capable of rolling abutting against the battery cell D. Specifically, the first clamping mechanism 50 may include the rolling element 101, or the second clamping mechanism 60 may include the rolling element 101, or as shown below. Figure 6 and Figure 8 As shown, both the first clamping mechanism 50 and the second clamping mechanism 60 include a rolling element 101.

[0087] By incorporating rolling elements 101 to replace planar contact with rolling contact, dynamic support is provided for the battery cell D. This reduces frictional resistance, improves clamping stability, reduces pressure on the battery cell D, and lowers the possibility of surface damage, wear particles, or particle detachment caused by pressure concentration. Furthermore, it reduces mechanical errors and vibration, improves positioning accuracy, and consequently, enhances stacking accuracy.

[0088] As an example, the first clamping mechanism 50 has 10 to 25 rolling elements 101, such as 12, 15, 18, 20, 22 or 25, with the rolling elements 101 spaced apart to improve support stability.

[0089] As an example, the second clamping mechanism 60 has 10 to 25 rolling elements 101, such as 12, 15, 18, 20, 22 or 25, which are spaced apart to improve support stability.

[0090] In some embodiments, the rolling element 101 is a ball, roller, or wheel. Thus, the low friction and motion stability of the ball, roller, or wheel, along with the use of curved or spherical contact instead of planar contact, facilitates manufacturing and installation.

[0091] As an example, the rolling element 101 has a wear-resistant layer made of a material with a low coefficient of friction, which reduces the pressure when the rolling element 101 comes into contact with the battery cell D, thereby reducing the possibility of indentations on the surface of the battery cell D.

[0092] In some embodiments, please refer to Figure 4 and Figure 5 The propulsion mechanism 70 includes a propulsion base 71, a propulsion member 72, and a propulsion drive member 73. The propulsion base 71 is movably disposed on the stacking platform 10; the propulsion member 72 is disposed on the propulsion base 71 and can abut against the battery cell D; the propulsion drive member 73 is drivenly connected to the propulsion base 71 so that the propulsion base 71 can move in a third direction X.

[0093] The pusher seat 71 provides a mounting position for the pusher 72. As an example, the stacking platform 10 has a first slide rail, and the pusher drive 73 can drive the pusher seat 71 to slide along the first slide rail to improve the smoothness and stability of the pusher seat 71's movement.

[0094] The propulsion drive 73 can be a motor, cylinder, hydraulic cylinder, etc. As an example, the propulsion drive 73 includes a servo motor. The servo motor has high positioning accuracy, stable operation and long life, which can improve the displacement control accuracy of the propulsion drive 72 along the third direction X, thereby improving the stacking accuracy.

[0095] In this embodiment, the battery cell D is moved along the third direction X by the propulsion drive 73, so that the large surface D3 of the adjacent battery cells D are put together to achieve stacking.

[0096] In some embodiments, please refer to Figure 5 The propulsion mechanism 70 also includes a third clamping drive 74 disposed on the propulsion base 71. The third clamping drive 74 is driven to connect with the propulsion member 72 so that the propulsion member 72 can move relative to the propulsion base 71, that is, it can move along a third direction X.

[0097] The third clamping drive 74 can be a motor, cylinder, hydraulic cylinder, etc. As an example, the third clamping drive 74 includes a servo motor. The servo motor has high positioning accuracy, stable operation and long life. It can improve the displacement control accuracy of the pusher 72 along the third direction X, thereby improving the stacking accuracy and reducing the possibility of damaging the battery cell D.

[0098] In some embodiments, please refer to Figure 4 The stacking device 100 also includes a ranging module 80 for measuring the distance between the battery cell D to be stacked and the already stacked battery cell D on the stacking platform 10; the third clamping drive 74 includes a servo motor that can control the stroke of the pusher 72 based on the information from the ranging module 80.

[0099] The ranging module 80 can collect the distance data between the battery cells D to be stacked and the already stacked battery cells D on the support mechanism 20 in real time. This allows the servo motor of the third clamping drive 74 to accurately control the stroke of the pusher 72 based on the distance data collected by the ranging module 80. This reduces the possibility of damage to the battery cells D caused by excessive servo motor push distance and reduces the possibility of poor fit of the battery cells D caused by insufficient push distance.

[0100] As an example, the ranging module 80 can use laser, photoelectric, or ultrasonic methods to achieve ranging. As another example, the ranging module 80 is an infrared ranging module, which emits infrared light to the battery cell D and calculates the distance between the battery cell D to be stacked and the already stacked battery cells D by the difference between two consecutive data points.

[0101] In this embodiment, after the previous battery cell D is stacked, the push drive 73 drives the push seat 71 to retract, so as to make room for the transport mechanism 220 to place the battery cell D to be stacked in the pre-stack position of the support mechanism 20. The push drive 73 drives the push seat 71 to the battery cell D to be stacked. After the first clamping member 52 and the second clamping member 62 act on the battery cell D, the first clamping drive 53 and the second clamping drive 63 remain stationary. The third clamping drive 74 drives the push member 72 to push the battery cell D to be stacked close to the already stacked battery cell D along the third direction X, thereby improving the fit of the large surface D3 of the adjacent battery cells D and improving the stacking accuracy of the battery cells D.

[0102] In some embodiments, please refer to Figure 5 The second clamping mechanism 60 is disposed on the push base 71. Thus, when the push base 71 moves relative to the stacking table 10, it can drive the second clamping mechanism 60 to move together, shortening the production cycle and improving production efficiency.

[0103] In other embodiments not shown, the second clamping mechanism 60 is movably disposed on the stacking platform 10 along a third direction X.

[0104] In some embodiments, please refer to Figure 5 The second clamping mechanism 60 includes a second sliding seat 61, a second clamping member 62, and a second clamping drive member 63. The second sliding seat 61 is disposed on the pushing mechanism 70; the second clamping member 62 is movably disposed on the second sliding seat 61, and the rolling member 101 is rotatably disposed on the second clamping member 62; the second clamping drive member 63 is drivenly connected to the second clamping member 62 so that the second clamping member 62 can move along the second direction Z. As an example, the second clamping drive member 63 is disposed on the second sliding seat 61.

[0105] The second sliding seat 61 is disposed on the propulsion mechanism 70. When the propulsion mechanism 70 moves along the third direction X, the second sliding seat 61 can follow the propulsion mechanism 70 to move along the third direction X, which can shorten the production cycle and improve production efficiency.

[0106] In other embodiments not shown, the second sliding seat 61 is movably disposed on the stacking platform 10. Further, the stacking platform 10 has a second slide rail along which the second sliding seat 61 can slide.

[0107] The second sliding seat 61 provides a mounting position for the second clamping member 62, which in turn provides a mounting position for the rolling member 101. As an example, the second clamping member 62 has a mounting groove and a mounting shaft, the mounting shaft being disposed in the mounting groove, and the rolling member 101 being a rolling column rotatably fitted onto the mounting shaft.

[0108] For example, please refer to Figure 5 The second sliding seat 61 has multiple first mounting holes 61a, and the second clamping member 62 includes two clamping parts 621. The two clamping parts 621 are spaced apart along a first direction Y. The clamping parts 621 are mounted to the first mounting holes 61a by fasteners, such as bolts. By adjusting the first mounting holes 61a corresponding to the two clamping parts 621, the spacing between the two clamping parts 621 can be adjusted to accommodate battery cells D of different sizes.

[0109] The second clamping drive 63 provides power for the second clamping member 62 to move along the second direction Z. The second clamping drive 63 can be a motor, a cylinder, or an electric cylinder, etc. As an example, the second clamping drive 63 is an electric cylinder, which has a fast response speed, high control precision, and compact structure.

[0110] In this embodiment, the second clamping member 62 is moved along the second direction Z by the second clamping drive member 63 to press the battery cell D and restrict the battery cell D from displacing along the second direction Z.

[0111] In some embodiments, please refer to Figure 5 The second clamping mechanism 60 also includes a second moving drive member 64, which is drivenly connected to the second sliding seat 61 so that the second sliding seat 61 can move relative to the pushing mechanism 70, that is, can move along a third direction X.

[0112] The second moving drive component 64 can be a motor, cylinder, hydraulic cylinder, etc. As an example, the second moving drive component 64 is an electric cylinder, which has a fast response speed, high control precision, and compact structure.

[0113] As an example, the propulsion mechanism 70 has a third slide rail, along which the second sliding seat 61 can slide to improve the smoothness and stability of the movement of the second sliding seat 61. As an example, the propulsion seat 71 has a third slide rail, along which the second sliding seat 61 can slide.

[0114] In this embodiment, the second sliding seat 61 is moved along the third direction X by the second moving drive member 64, and the position of the second clamping member 62 along the third direction X is adjusted so that the second clamping member 62 moves to a position that is convenient for pressing at least two battery cells D.

[0115] In some embodiments, please refer to Figure 4 and Figure 8 The first clamping mechanism 50 includes a first sliding seat 51, a first clamping member 52, a first clamping drive member 53, and a first moving drive member 54. The first sliding seat 51 is movably disposed on the stacking platform 10; the first clamping member 52 is movably disposed on the first sliding seat 51, and the rolling member 101 is rotatably disposed on the first clamping member 52; the first clamping drive member 53 is drivenly connected to the first clamping member 52, enabling the first clamping member 52 to move along a first direction Y; the first moving drive member 54 is drivenly connected to the first sliding seat 51, enabling the first sliding seat 51 to move along a third direction X. As an example, the first clamping drive member 53 is disposed on the first sliding seat 51.

[0116] As an example, the stacking platform 10 has a fourth slide rail, along which the first sliding seat 51 can slide to improve the smoothness and stability of the movement of the first sliding seat 51.

[0117] The first clamping drive 53 provides power for the first clamping member 52 to move along the first direction Y. The first clamping drive 53 can be a motor, a cylinder, or an electric cylinder, etc. As an example, the first clamping drive 53 is an electric cylinder, which has a fast response speed, high control accuracy, and compact structure.

[0118] The first moving drive 54 provides power for the first sliding block 51 to move along the third direction X. The first moving drive 54 can be configured as a motor, cylinder, or electric cylinder, etc. As an example, the first moving drive 54 includes a servo motor. The servo motor has high positioning accuracy, stable operation, and long service life, which can improve the displacement control accuracy of the first clamping member 52 along the third direction X, thereby improving the stacking accuracy.

[0119] The first sliding seat 51 provides a mounting position for the first clamping member 52, and the first clamping member 52 provides a mounting position for the rolling member 101. As an example, the first clamping member 52 has a mounting groove and a mounting shaft, the mounting shaft being disposed in the mounting groove, and the rolling member 101 being a rolling column rotatably sleeved on the mounting shaft.

[0120] In this embodiment, the first sliding block 51 is moved along a third direction X by the first moving drive member 54, and the position of the first clamping member 52 along the third direction X is adjusted so that the first clamping member 52 moves to a position that facilitates contact with at least two battery cells D. The first clamping drive member 53 enables the first clamping member 52 to drive the rolling member 101 to move along a first direction Y, pushing the side surface D2 of the battery cell D.

[0121] In some embodiments not shown, the first clamping mechanism 50 may also be disposed on the propulsion mechanism 70. In this way, the first clamping mechanism 50 can move along the third direction X following the propulsion mechanism 70.

[0122] In some embodiments, please refer to Figures 1 to 8The stacking device 100 is used to stack battery cells D, with each battery cell D arranged sequentially along a third direction X to form a battery module. The battery cell D is a prismatic battery cell, and its terminals are positioned along a second direction Z on its end face D1. The stacking device 100 includes a stacking platform 10, a support mechanism 20, a positioning mechanism 30, a limiting mechanism 40, a first clamping mechanism 50, a second clamping mechanism 60, a pushing mechanism 70, and a ranging module 80. The support mechanism 20 is disposed on the stacking platform 10 and supports the battery cells D; the positioning mechanism 30 is disposed on the stacking platform 10; the limiting mechanism 40 is disposed on the stacking platform 10; the first clamping mechanism 50 is movable relative to the stacking platform 10 and can limit the side face D2 of the battery cell D along the first direction Y with the positioning mechanism 30. The first clamping mechanism 50 includes a first sliding seat 51, a first clamping member 52, a first clamping drive member 53, and a first moving drive member 54. The first sliding seat 51 is movably disposed on the stacking platform 10, the first clamping member 52 is movably disposed on the first sliding seat 51, and the rolling member 101 is rotatably disposed on the first clamping member 52. The first clamping drive member 53 is drivenly connected to the first clamping member 52 so that the first clamping member 52 can move along the first direction Y. The first moving drive member 54 is drivenly connected to the first sliding seat 51 so that the first sliding seat 51 can move along the third direction X. The second clamping mechanism 60 is movable relative to the stacking platform 10 and can limit the end face D1 of the battery cell D along the second direction Z with the support mechanism 20. The second clamping mechanism 60 includes a second sliding seat 61, a second clamping member 62, a second clamping drive member 63, and a second moving drive member 64. The second sliding seat 61 is disposed on the pushing mechanism 70. The second clamping member 62 is movably disposed on the second sliding seat 61, and the rolling member 101 is rotatably disposed on the second clamping member 62. The second clamping drive member 63 is drivenly connected to the second clamping member 62 so that the second clamping member 62 can move along the second direction Z. The second moving drive member 64 is drivenly connected to the second sliding seat 61 so that the second sliding seat 61 can move relative to the pushing mechanism 70, that is, it can move along the third direction X. The pushing mechanism 70 is movable relative to the stacking platform 10, abuts against the large surface D3 of the battery cell D, and can push the battery cell D along the third direction X toward the limiting mechanism 40. The pushing mechanism 70 includes a pushing seat 71, a pushing member 72, a pushing drive member 73, and a third clamping drive member 74. A push base 71 is movably disposed on the stacking platform 10; a push member 72 is disposed on the push base 71 and can abut against the battery cell D; a push drive member 73 is drivenly connected to the push base 71 so that the push base 71 can move in a third direction X. A third clamping drive member 74 is disposed on the push base 71 and is drivenly connected to the push member 72 so that the push member 72 can move relative to the push base 71, that is, can move in a third direction X. Both the first clamping mechanism 50 and the second clamping mechanism 60 include a rolling member 101, which is a roller and can roll against the battery cell D.The ranging module 80 is used to measure the distance between the battery cell D to be stacked and the already stacked battery cell D on the stacking platform 10; the third clamping drive 74 includes a servo motor, which can control the stroke of the propulsion member 72 based on the information from the ranging module 80. The first direction Y, the second direction Z, and the third direction X are all perpendicular to each other.

[0123] In this embodiment, the coordinated design of the support mechanism 20, positioning mechanism 30, limiting mechanism 40, first clamping mechanism 50, second clamping mechanism 60, and pushing mechanism 70 significantly improves the positioning accuracy of the stacked battery cells D. The large surfaces D3 of adjacent battery cells D are aligned, and the end faces D1 and side faces D2 of each battery cell D are aligned. The support mechanism 20 serves as the positioning reference for the battery cells D along the second direction Z, and in conjunction with the second clamping mechanism 60, it aligns the end faces D1 of each battery cell D and restricts displacement of the battery cells D along the second direction Z. The positioning mechanism 30 serves as the positioning reference for the battery cells D along the first direction Y, and in conjunction with the first clamping mechanism 50, it aligns the side faces D2 of each battery cell D. The limiting mechanism 40, in conjunction with the pushing mechanism 70, allows the battery cells D to be stacked sequentially along the third direction X. This reduces the possibility of offset or tilting during battery cell D stacking, significantly improving the stacking accuracy of the battery cells D, reducing redundant production processes, streamlining production cycle time, and improving stacking efficiency, thereby increasing overall production efficiency. The battery cell D is moved along the third direction X by the push drive 73, so that the large surfaces D3 of adjacent battery cells D are put together to achieve stacking. The second sliding seat 61 can be moved along the third direction X by the second moving drive 64, and the position of the second clamping member 62 along the third direction X is adjusted so that the second clamping member 62 moves to a position that is convenient for pressing at least two battery cells D. The second sliding seat 61 is disposed on the push mechanism 70. When the push mechanism 70 moves along the third direction X, the second sliding seat 61 can follow the push mechanism 70 to move along the third direction X, which can shorten the production cycle and improve production efficiency. The first sliding seat 51 can be moved along the third direction X by the first moving drive 54, and the position of the first clamping member 52 along the third direction X is adjusted so that the first clamping member 52 moves to a position that is convenient for abutting at least two battery cells D. The first clamping drive 53 can drive the first clamping member 52 to move the rolling member 101 along the first direction Y, pushing the side surface D2 of the battery cell D. The low-friction characteristics and motion stability of the rollers, along with the use of curved or spherical surfaces instead of planar contact, facilitate processing and installation. Dynamic support is provided for the battery cell D, reducing frictional resistance, improving clamping stability, and decreasing pressure on the battery cell D. This reduces the possibility of surface damage, wear particle generation, or particle detachment caused by pressure concentration. Furthermore, it reduces mechanical errors and vibration, improving positioning accuracy and consequently stacking accuracy. The servo motor offers high positioning accuracy, stable operation, and a long lifespan, improving the displacement control accuracy of the pusher 72 along the third direction X, thereby enhancing stacking accuracy and reducing the possibility of damage to the battery cell D.The ranging module 80 can collect the distance data between the battery cells D to be stacked and the already stacked battery cells D on the support mechanism 20 in real time. This allows the servo motor of the third clamping drive 74 to accurately control the stroke of the pusher 72 based on the distance data collected by the ranging module 80. This reduces the possibility of damage to the battery cells D caused by excessive servo motor push distance and reduces the possibility of poor fit of the battery cells D caused by insufficient push distance.

[0124] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A stacking device, characterized in that, The stacking device is used to stack multiple battery cells into a battery module, and the stacking device includes: Stacking platform; A support mechanism, disposed on the stacking platform, is capable of supporting the individual battery cells; A positioning mechanism is provided on the stacking platform; A limiting mechanism is provided on the stacking platform; The first clamping mechanism is movable relative to the stacking platform and can limit the battery cell along the first direction with the positioning mechanism. The second clamping mechanism is movable relative to the stacking platform and can limit the battery cell along the second direction with the support mechanism. The propulsion mechanism is movable relative to the stacking platform and can push the battery cell toward the limiting mechanism in a third direction; Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

2. The stacking device according to claim 1, characterized in that, At least one of the first clamping mechanism and the second clamping mechanism includes a rolling element that can roll against the battery cell.

3. The stacking device according to claim 2, characterized in that, The rolling element is a ball, roller, or wheel.

4. The stacking device according to claim 2, characterized in that, The first clamping mechanism includes: A first sliding seat is movably disposed on the stacking platform; The first clamping member is movably disposed on the first sliding seat, and the rolling member is rotatably disposed on the first clamping member; A first clamping drive is driven to connect with the first clamping member so that the first clamping member can move along the first direction; A first moving drive is driven to connect with the first sliding block, so that the first sliding block can move along the third direction.

5. The stacking device according to claim 2, characterized in that, The second clamping mechanism includes: The second sliding seat is disposed in the propulsion mechanism; The second clamping member is movably disposed on the second sliding seat, and the rolling member is rotatably disposed on the second clamping member; The second clamping drive is driven to connect with the second clamping member so that the second clamping member can move along the second direction.

6. The stacking device according to claim 5, characterized in that, The second clamping mechanism further includes: The second moving drive is driven to connect with the second sliding seat so that the second sliding seat can move along the third direction.

7. The stacking device according to claim 1, characterized in that, The propulsion mechanism includes: A pusher seat is movably mounted on the stacking platform; A propulsion component, disposed on the propulsion base, is capable of contacting the battery cell; A propulsion drive is driven to the propulsion seat so that the propulsion seat can move along the third direction.

8. The stacking device according to claim 7, characterized in that, The propulsion mechanism also includes: A third clamping drive is driven to connect with the pusher so that the pusher can move along the third direction.

9. The stacking device according to claim 8, characterized in that, The stacking device also includes a ranging module for measuring the distance between the battery cell to be stacked and the already stacked battery cells located on the stacking platform; The third clamping drive includes a servo motor, which can control the stroke of the propulsion component based on the information from the ranging module.

10. The stacking device according to claim 7, characterized in that, The second clamping mechanism is disposed on the push seat.

11. The stacking device according to any one of claims 1 to 10, characterized in that, The positioning mechanism is adjustablely mounted on the stacking platform.

12. The stacking device according to any one of claims 1 to 10, characterized in that, The terminal post of the battery cell is disposed on the end face of the battery cell along the second direction, the second clamping mechanism and the supporting mechanism limit the end face of the battery cell along the second direction, and the second clamping mechanism can abut against the end face or terminal post of the battery cell. The first clamping mechanism and the positioning mechanism limit the side of the battery cell along the first direction; The propulsion mechanism abuts against the large surface of the battery cell and pushes the battery cell toward the limiting mechanism along the third direction.

13. A battery production line, characterized in that, include: The stacking device according to any one of claims 1 to 12.

14. The battery production line according to claim 13, characterized in that, The battery production line also includes: The base includes two side-by-side support frames, each of which is provided with one of the stacking devices, which are movable along the corresponding support frame.

15. The battery production line according to claim 13, characterized in that, The battery production line also includes: A transport mechanism is used to transport the battery cell to the support mechanism.

16. The battery production line according to claim 15, characterized in that, The battery production line also includes: The frame, on which the conveying mechanism is mounted.

17. The battery production line according to claim 16, characterized in that, The transport mechanism is a spider-hand robot.

18. The battery production line of claim 14, wherein, The battery production line also includes: The wheels are mounted on the base. A fixing seat is provided on the base.

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