Clamping mechanism for battery cell, battery cell stacking equipment and battery production line

Abstract

The utility model discloses a clamping mechanism used for a battery cell, a battery cell stacking device and a battery production line, the clamping mechanism used for the battery cell comprises a first clamping assembly and a second clamping assembly, the first clamping assembly is suitable for clamping two end faces of the length direction of the battery cell, and the second clamping assembly is suitable for clamping two end faces of the length direction of the battery cell; the second clamping assembly is connected with the first clamping assembly, and the second clamping assembly is suitable for clamping the two side surfaces of the battery cell in the thickness direction. Therefore, through cooperative work of the first clamping assembly and the second clamping assembly, stable clamping of the battery cell in the length direction and the thickness direction can be achieved, the second clamping assembly is matched with the large face of the battery cell, and the stability and reliability of the clamping mechanism for clamping the battery cell can be improved; the position slippage change in the high-speed carrying process of the battery cell is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a clamping mechanism for battery cells, battery cell stacking equipment and a battery production line. Background Art

[0002] In the existing technology, the safety design of the cell module structure is becoming more and more important and perfect. The addition of insulating partitions or other materials in the battery module has more and higher requirements for cell stacking. The existing clamping mechanism uses a six-axis manipulator to load different product grippers or uses multiple independent product handling mechanisms to achieve the stacking of multiple materials in the same module. The cell stacking gripper mechanism is affected by the cell length tolerance, resulting in one or both sides of the cover plate surface clamp not being able to contact, making the clamping mechanism's stability and reliability in clamping the cell insufficient. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the first purpose of the utility model is to provide a clamping mechanism for a battery cell, which can improve the reliability and stability of the clamping mechanism.

[0004] The second objective of the present utility model is to provide a battery cell stacking device, comprising a battery cell stacking mechanism and the clamping mechanism for the battery cells described in the above embodiment.

[0005] The third object of the present utility model is to provide a battery production line, including a battery assembly device and the battery cell stacking device described in the above embodiment.

[0006] According to an embodiment of the utility model, a clamping mechanism for a battery cell includes: a first clamping assembly and a second clamping assembly, wherein the first clamping assembly is suitable for clamping both end faces of the battery cell in the length direction; the second clamping assembly is connected to the first clamping assembly, and the second clamping assembly is suitable for clamping both side surfaces of the battery cell in the thickness direction.

[0007] According to the clamping mechanism for the battery cell of the embodiment of the utility model, the first clamping component and the second clamping component work together to achieve stable clamping of the battery cell in the length direction and the thickness direction, and the second clamping component cooperates with the large surface of the battery cell, which can improve the stability and reliability of the clamping mechanism in clamping the battery cell, avoid position slippage during high-speed transportation of the battery cell, and improve work efficiency.

[0008] In some embodiments, the first clamping assembly includes two first clamping devices, and the two first clamping devices are relatively movable along the length direction of the battery core.

[0009] In some embodiments, one of the two first clamping devices is maintained at a reference position, and the other of the two first clamping devices is movable along the length direction of the battery cell to approach or move away from the one of the two first clamping devices.

[0010] In some embodiments, the first clamping assembly further includes: a first substrate, two first clamping devices are respectively provided at both ends of the length direction of the first substrate, and the two first clamping devices can be relatively close to each other and relatively far away from each other along the length direction of the first substrate.

[0011] In some embodiments, the first clamping assembly further includes: two first clamping drive devices and two first guide rail devices, the two first clamping drive devices are respectively arranged at the two ends of the length direction of the first substrate; the two first guide rail devices are movably matched with the first substrate along the length direction of the first substrate, the two first guide rail devices are respectively connected to the two first clamping drive devices, and the two first clamping devices are respectively arranged on the two first guide rail devices. When the first clamping drive device is working, the first clamping drive device drives the first guide rail device to drive the corresponding first clamping device to move along the length direction of the first substrate.

[0012] In some embodiments, the first clamping drive device includes: a first drive cylinder and a first adapter, the first drive cylinder is arranged on the first substrate, the first drive cylinder includes a first piston rod; the first adapter is arranged on the first guide rail device, and the free end of the first piston rod is connected to the first adapter.

[0013] In some embodiments, the first clamping drive device further includes: a first connecting rod connected between the first piston rod and the first adapter.

[0014] In some embodiments, the first connecting rod of at least one of the two first clamping drive devices has a stop portion; the first clamping assembly further includes: a reference block, the reference block is arranged on the first substrate, and the stop portion is suitable for abutting against the reference block.

[0015] In some embodiments, it is characterized in that the first guide rail device includes: a first mounting plate and a first guide rail, the first clamping device and the first adapter are respectively arranged on both sides of the first mounting plate; the first guide rail is arranged on the first mounting plate, and the first guide rail is movably matched with the first substrate along the length direction of the first substrate.

[0016] In some embodiments, the first clamping device includes: a second mounting plate, a second guide rail, a clamping block mounting plate and a clamping block, the second mounting plate is arranged on the first guide rail device; the second guide rail is arranged on the second mounting plate, and the second guide rail extends along the thickness direction of the first substrate; the clamping block mounting plate and the second guide rail are movably matched; the clamping block is arranged on a side surface of the clamping block mounting plate facing another first clamping device.

[0017] In some embodiments, the first clamping device further includes: a guide block and at least one elastic member, the guide block is arranged on the second mounting plate, the clamping block mounting plate is guided and cooperated with the guide block; the elastic member is arranged between the guide block and the clamping block mounting plate.

[0018] In some embodiments, the second clamping assembly includes at least one clamping group, the clamping group includes two second clamping devices, and the two second clamping devices are relatively movable along the thickness direction of the battery core.

[0019] In some embodiments, the second clamping assembly includes at least one clamping group, the clamping group includes two second clamping devices, and the two second clamping devices can move relatively along the thickness direction of the battery cell; the second clamping assembly further includes: a second substrate, the second substrate is arranged on the first substrate, the second substrate is suitable for being movable along the width direction of the battery cell relative to the first substrate, at least one clamping group is arranged on the second substrate, and the two second clamping devices of the clamping group can approach and move away from each other relatively along the width direction of the second substrate.

[0020] In some embodiments, the second clamping assembly further includes: at least one second clamping drive device, the second clamping drive device is disposed on the second substrate, and the clamping group is disposed on a side of the second clamping drive device away from the second substrate.

[0021] In some embodiments, the second clamping assembly further includes: at least one third adapter plate, wherein the third adapter plate is disposed between the second substrate and the second clamping drive device.

[0022] In some embodiments, two second clamping drive devices are respectively disposed at both ends of the second substrate in the length direction; there are two clamping groups, and the two clamping groups are respectively connected to the two second clamping drive devices.

[0023] In some embodiments, the second clamping drive device includes a parallel jaw cylinder.

[0024] In some embodiments, the method further includes: a driving device, wherein the driving device is disposed between the first substrate and the second substrate, and when the driving device is working, the driving device drives the second substrate to move closer to and away from the first substrate.

[0025] In some embodiments, the driving device includes: a driving cylinder and a connecting plate, the driving cylinder is arranged on the second substrate, the driving cylinder includes a driving piston rod; the connecting plate is connected to the free end of the driving piston rod, and the connecting plate is connected to the first substrate.

[0026] In some embodiments, the second clamping assembly further includes: at least one guide group, the guide group includes at least one guide rod, one end of the guide rod is connected to the second substrate, and the other end of the guide rod is guided and matched with the first substrate.

[0027] In some embodiments, there are multiple guide rods, and the multiple guide rods are arranged at intervals along the width direction of the second substrate; the clamping mechanism also includes a limiter, and the ends of the multiple guide rods away from the second substrate are connected by the limiter, and the limiter is located on the side of the first substrate away from the second substrate.

[0028] In some embodiments, there are a plurality of guide groups, and the plurality of guide groups are arranged at intervals along the length direction of the second substrate.

[0029] According to the battery cell stacking device of the second aspect embodiment of the utility model, the battery cell stacking device includes a battery cell stacking mechanism and a clamping mechanism for battery cells, and the clamping mechanism for battery cells is the clamping mechanism for battery cells according to the above-mentioned first aspect embodiment of the utility model.

[0030] According to the battery production line of the embodiment of the third aspect of the utility model, the battery production line includes battery assembly equipment and battery cell stacking equipment according to the embodiment of the second aspect of the utility model.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0033] Figure 1 It is a schematic diagram of a clamping mechanism according to an embodiment of the utility model.

[0034] Figure 2It is a schematic diagram of a first clamping assembly according to an embodiment of the utility model.

[0035] Figure 3 It is a schematic diagram of a second clamping assembly according to an embodiment of the utility model.

[0036] Reference numerals:

[0037] 100. Clamping mechanism;

[0038] 10. First clamping assembly; 11. First clamping device; 111. Second mounting plate; 112. Second guide rail; 113. Clamping block mounting plate; 114. Clamping block; 115. Guide block; 116. Elastic member; 12. First substrate; 13. First clamping drive device; 131. First drive cylinder; 132. First adapter; 133. First connecting rod; 134. Stop portion; 14. First guide rail device; 141. First mounting plate; 142. First guide rail; 15. Reference block;

[0039] 20. Second clamping assembly; 21. Clamping group; 22. Second clamping device; 23. Second base plate; 24. Second clamping drive device; 25. Third adapter plate; 26. Drive device; 27. Drive cylinder; 28. Connecting plate; 29. ​​Guide group; 291. Guide rod; 292. Stopper;

[0040] A. First direction; B. Second direction; C. Third direction. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 3 The clamping mechanism 100 for a battery cell according to an embodiment of the present invention is described, comprising: a first clamping assembly 10 and a second clamping assembly 20. The clamping mechanism 100 for a battery cell has a first direction A, a second direction B and a third direction C.

[0042] Specifically, if Figure 1-Figure 3 As shown, the first clamping assembly 10 is suitable for clamping the two end faces of the battery cell in the length direction; the second clamping assembly 20 is connected to the first clamping assembly 10, and the second clamping assembly 20 is suitable for clamping the two side surfaces of the battery cell in the thickness direction.

[0043] Combination Figure 1-Figure 3, the length direction of the battery cell is the same as the first direction A of the clamping mechanism 100, the thickness direction of the battery cell is the same as the second direction B of the clamping mechanism 100, and the width direction of the battery cell is the same as the third direction C of the clamping mechanism 100. The two opposite sides of the battery cell along the length direction are the first surfaces, the two opposite sides of the battery cell along the thickness direction are the second surfaces, and the two opposite sides of the battery cell along the width direction are the third surfaces. The two second surfaces are the large surfaces of the battery cell, and the area of ​​the second surface is larger than that of the first surface and the third surface. The first clamping assembly 10 can move in the first direction A of the clamping mechanism 100 so as to cooperate with the two first surfaces of the battery cell to achieve clamping of the two ends of the battery cell along the first direction A. The second clamping assembly 20 can move in the second direction B of the clamping mechanism 100. The second clamping assembly 20 is suitable for cooperating with the two second surfaces of the battery cell. The area of ​​the second surface is larger. The second clamping assembly 20 can firmly and evenly clamp the two ends of the battery cell along the thickness direction to achieve clamping and fixing of the battery cell in the thickness direction.

[0044] According to the clamping mechanism 100 for the battery cell according to the embodiment of the utility model, the first clamping component 10 and the second clamping component 20 work together to achieve stable clamping of the battery cell in the length direction and the thickness direction, and the second clamping component 20 cooperates with the large surface of the battery cell, which can improve the stability and reliability of the clamping mechanism 100 in clamping the battery cell, avoid position slippage during high-speed transportation of the battery cell, and improve work efficiency.

[0045] According to some embodiments of the present invention, Figure 2 As shown, the first clamping assembly 10 includes two first clamping devices 11, and the two first clamping devices 11 can move relatively along the length direction of the battery core.

[0046] The two first devices are respectively arranged at the two ends of the clamping mechanism 100 along the first direction A and are arranged opposite to each other. The two first clamping devices 11 can be close to or away from each other along the first direction A of the clamping mechanism 100. The two first clamping devices 11 can be adaptively adjusted according to the actual length of the battery cell to ensure that the first clamping assembly 10 can be accurately and effectively clamped on the two first surfaces of the battery cell along the length direction.

[0047] Therefore, the first clamping assembly 10 adopts a symmetrical layout of double clamping devices, and the two first clamping devices 11 can be relatively close or far away, so that the clamping mechanism 100 can flexibly adapt to battery cells of different sizes, and achieve accurate and stable clamping of the battery cells in the length direction, which greatly improves the stability and reliability of the battery cells during high-speed transportation.

[0048] According to some embodiments of the present invention, Figure 2 and Figure 3As shown, one of the two first clamping devices 11 is maintained at a reference position, and the other of the two first clamping devices 11 is movable along the length direction of the battery cell to approach or move away from one of the two first clamping devices 11 .

[0049] One of the two first clamping devices 11 is maintained at a fixed reference position. The first clamping device 11 serves as a reference point and provides a positioning reference for the movement of the other first clamping device 11. When the battery cell needs to be clamped, the moving first clamping device 11 will accurately approach or move away from the reference position according to the actual length of the battery cell until it contacts and clamps the end face of the battery cell in the length direction.

[0050] In some embodiments, one of the two second clamping devices 22 remains stationary, and the other of the two second clamping devices 22 moves closer to or farther from one of the two second clamping devices 22 along the thickness direction of the battery cell. When the battery cell needs to be clamped, the movable second clamping device 22 moves closer to or farther from the stationary second clamping device 22 precisely according to the actual thickness of the battery cell until it contacts and clamps the end surface of the battery cell in the thickness direction.

[0051] Thus, the first clamping assembly 10 is maintained at the reference position by a first clamping device 11, and the other first clamping device 11 is moved closer or farther along the length direction of the battery cell, so as to realize the fast, accurate and stable clamping of the end face in the length direction of the battery cell, and has strong adaptability. When clamping the battery cell, the first clamping device 11 can use one end face of the battery cell as a reference and press the other side, which can avoid the situation that the clamping mechanism 100 cannot contact one or both end faces of the battery cell in the length direction with the clamping device due to the lower limit of the battery cell length tolerance, which is conducive to improving the efficiency and reliability of the clamping mechanism 100 clamping the battery cell. In addition, the first clamping device 11 maintained at the reference position can provide a clear reference for the other moving first clamping device 11, which helps to ensure the accuracy of the clamping position, avoid the possible positioning mis-insertion caused by the simultaneous movement of the two first clamping devices 11, and simplify the operation and movement of the first clamping assembly 10, and improve the clamping efficiency of the clamping mechanism 100.

[0052] According to some embodiments of the present invention, Figure 2 As shown, the first clamping assembly 10 further includes: a first substrate 12 , two first clamping devices 11 are respectively provided at both ends of the length direction of the first substrate 12 , and the two first clamping devices 11 can be relatively close to each other and relatively far away from each other along the length direction of the first substrate 12 .

[0053] The first substrate 12 extends along the first direction A of the clamping mechanism 100, and the length direction of the first substrate 12 is the same as the first direction A of the clamping mechanism 100. The first substrate 12 provides a mounting platform and support for the two first clamping devices 11, ensuring the stability and rigidity of the first clamping assembly 10 when clamping the battery cell. The two first clamping devices 11 can be relatively close to or away from each other along the length direction of the first substrate 12 (i.e., the length direction of the battery cell), so that the first clamping assembly 10 can be adaptively adjusted according to the actual length of the battery cell, ensuring accurate and effective clamping of the end faces of both ends of the length direction of the battery cell.

[0054] Therefore, the two first clamping devices 11 are both arranged on the first substrate 12, so that the two first clamping devices 11 can maintain a stable relative position relationship during the movement, which is beneficial to improving the clamping accuracy and the uniform distribution of the clamping force. The two first clamping devices 11 can be relatively close to and relatively far away from each other along the length direction of the first substrate 12, and can achieve accurate and stable clamping of the end faces at both ends of the length direction of the battery cell, so that the first clamping assembly 10 has good adaptability and ease of operation.

[0055] According to some embodiments of the present invention, Figure 2 As shown, the first clamping assembly 10 further includes: two first clamping drive devices 13 and two first guide rail devices 14, the two first clamping drive devices 13 are respectively arranged at the two ends of the length direction of the first substrate 12; the two first guide rail devices 14 are movably matched with the first substrate 12 along the length direction of the first substrate 12, the two first guide rail devices 14 are respectively connected to the two first clamping drive devices 13, and the two first clamping devices 11 are respectively arranged on the two first guide rail devices 14. When the first clamping drive device 13 is working, the first clamping drive device 13 drives the first guide rail device 14 to drive the corresponding first clamping device 11 to move along the length direction of the first substrate 12.

[0056] The length direction of the first substrate 12 is the same as the first direction A of the clamping mechanism 100. The two first guide rail devices 14 are respectively arranged at the two ends of the first substrate 12 along the length direction, and the two first guide rail devices 14 cooperate with the lower surface of the first substrate 12 along the third direction C of the clamping mechanism 100. The first guide rail device 14 can move relative to the first substrate 12 along the length direction of the first substrate 12. The two first clamping drive devices 13 are respectively connected to the two first guide rail devices 14. The two first clamping drive devices 13 can respectively provide power to the two first guide rail devices 14 so that the two first clamping devices 11 move along the predetermined direction, and the movement direction and movement distance of the two first clamping devices 11 can be controlled.

[0057] Therefore, through the cooperation of the two first clamping drive devices 13 and the two first guide rail devices 14, the first clamping drive device 13 can provide power for the movement of the first clamping device 11, and can quickly and accurately adjust the position of the first clamping device 11. The automated drive control reduces the time and error of manual adjustment, which can improve production efficiency and clamping accuracy, and ensure the stability and reliability of the clamping mechanism 100 during the entire clamping process.

[0058] According to some embodiments of the present invention, Figure 2 As shown, the first clamping drive device 13 includes: a first drive cylinder 131 and a first adapter 132. The first drive cylinder 131 is arranged on the first substrate 12, and the first drive cylinder 131 includes a first piston rod; the first adapter 132 is arranged on the first guide rail device 14, and the free end of the first piston rod is connected to the first adapter 132.

[0059] The first driving cylinder 131 is the core component of the first clamping driving device 13. The cylinder is an actuator that uses compressed air as a power source and converts the reciprocating motion of the internal piston into linear thrust. The first piston rod serves as the output part of the first driving cylinder 131. One end of the first piston rod is connected to the piston inside the first driving cylinder 131, and the other end of the first piston rod extends out of the first driving cylinder 131. The telescopic movement of the first piston rod directly responds to the change in the gas pressure inside the first driving cylinder 131. The first adapter 132 is installed on the first guide rail device 14 and acts as a bridge to transmit the linear motion of the first piston rod to the first guide rail device 14, thereby driving the first clamping device 11 to move along the length direction of the first substrate 12.

[0060] Therefore, the function of the first driving cylinder 131 is to generate a linear driving force to push or pull the first clamping device 11 so that the first clamping device 11 moves along the length direction of the first substrate 12. The first piston rod is a key component that converts gas pressure into mechanical motion. The first adapter 132 is connected to the free end of the first piston rod. The design of the first adapter 132 can ensure efficient and stable power transmission. Through the arrangement of the first driving cylinder 131, the first piston rod and the first adapter 132 inside the first clamping drive device 13, the first clamping drive device 13 can have the characteristics of fast response, simple operation and convenient maintenance, thereby providing an efficient and reliable driving solution for the first clamping assembly 10.

[0061] According to some embodiments of the present invention, Figure 2 As shown, the first clamping drive device 13 further includes: a first connecting rod 133 , and the first connecting rod 133 is connected between the first piston rod and the first adapter 132 .

[0062] The first piston rod and the first connecting rod 133 extend along the first direction A of the clamping mechanism 100, and the first adapter 132 extends along the third direction C of the clamping mechanism 100. One end of the first connecting rod 133 along the first direction A of the clamping mechanism 100 is suitable for connecting with the free end of the first piston rod, and the other end of the first connecting rod 133 along the first direction A of the clamping mechanism 100 is suitable for connecting with an end of the first adapter 132 adjacent to the first substrate 12 along the third direction C. The first guide rail device 14 extends along the first direction A of the clamping mechanism 100, and the other end of the first connecting rod 133 along the third direction C is suitable for connecting with an end of the first guide rail device 14 away from the center of the first substrate 12 along the first direction A of the clamping mechanism 100. The first clamping drive device 13 drives the first guide rail device 14 to move along the length direction of the first substrate 12 through the connection and cooperation between the first piston rod, the first connecting rod 133 and the first adapter 132.

[0063] Therefore, the first connecting rod 133 is arranged between the first piston rod and the first adapter 132 to play the role of an intermediary connection. The setting of the first connecting rod 133 can ensure the smooth transmission of force between the first piston rod and the first adapter 132, ensure the driving efficiency and reliability of the first driving clamping device, and enhance the overall adaptability and functionality of the clamping mechanism 100.

[0064] According to some embodiments of the present invention, Figure 2 As shown, the first connecting rod 133 of at least one of the two first clamping drive devices 13 has a stop portion 134; the first clamping assembly 10 further includes: a reference block 15, the reference block 15 is arranged on the first substrate 12, and the stop portion 134 is suitable for abutting against the reference block 15.

[0065] The stop portion 134 is formed at one end of the first connecting rod 133 adjacent to the first substrate 12 along the first direction A of the clamping mechanism 100. The stop portion 134 is formed by extending from one end of the first connecting rod 133 along the first direction A of the clamping mechanism 100 along the third direction C of the clamping mechanism 100 toward the side where the first guide rail device 14 is located. A reference block 15 is provided at least at one end of the first substrate 12 adjacent to the first connecting rod 133 along the length direction. A side surface of the stop portion 134 adjacent to the first substrate 12 along the first direction A of the clamping mechanism 100 is suitable for contacting and stopping with the reference block 15.

[0066] Therefore, the use of the stop portion 134 in conjunction with the reference block 15 provides physical restrictions for at least one first clamping drive device 13 when it moves to a specific position, ensuring that the first clamping device 11 can accurately reach the preset stop position. By replacing complex sensor feedback and control algorithms with physical stops, program design can be simplified, the complexity of the electronic control system can be reduced, and the reliability and cost-effectiveness of the system can be improved.

[0067] According to some embodiments of the present invention, Figure 2 As shown, the first guide rail device 14 includes: a first mounting plate 141 and a first guide rail 142, the first clamping device 11 and the first adapter 132 are respectively arranged on both sides of the first mounting plate 141; the first guide rail 142 is arranged on the first mounting plate 141, and the first guide rail 142 is movably matched with the first substrate 12 along the length direction of the first substrate 12.

[0068] The first mounting plate 141 and the first guide rail 142 both extend along the first direction A, the first clamping device 11 is disposed on the lower side of the first mounting plate 141 along the third direction C of the clamping mechanism 100, and the other end of the first adapter 132 along the third direction C of the clamping mechanism 100 is connected to the upper surface of the first mounting plate 141 along the third direction C of the clamping mechanism 100. A guide rail groove is formed on the lower surface of the first substrate 12 along the third direction C of the clamping mechanism 100, the guide rail groove extends along the first direction A, and at least a portion of the lower surface of the guide rail groove along the third direction C of the clamping mechanism 100 is concavely formed, and the shape of the guide rail groove is adapted to the first guide rail 142, and the first guide rail 142 is movably fitted in the guide rail groove, that is, the first guide rail 142 can move relative to the guide rail groove along the first direction A of the first substrate 12.

[0069] Therefore, the first mounting plate 141 serves as the basic component of the first guide rail device 14, and the first mounting plate 141 provides a mounting platform for the first clamping device 11 and the first adapter 132. The first clamping device 11 and the first adapter 132 are respectively arranged on both sides of the first mounting plate 141. Such a layout is conducive to the transmission of power and maintains the compactness and stability of the structure. The first guide rail 142 is arranged on the first mounting plate 141, and its function is to guide and support the first mounting plate 141 to move along the length direction of the first substrate 12, thereby driving the first clamping device 11 to complete the specified clamping action, realizing the adjustability and flexibility of the first clamping device 11 in the length direction of the battery cell, while ensuring the smoothness of operation and the accuracy of positioning.

[0070] According to some embodiments of the present invention, Figure 2 As shown, the first clamping device 11 includes: a second mounting plate 111, a second guide rail 112, a clamping block mounting plate 113 and a clamping block 114, the second mounting plate 111 is arranged on the first guide rail device 14; the second guide rail 112 is arranged on the second mounting plate 111, and the second guide rail 112 extends along the thickness direction of the first substrate 12; the clamping block mounting plate 113 is movably matched with the second guide rail 112; the clamping block 114 is arranged on a side surface of the clamping block mounting plate 113 facing another first clamping device 11.

[0071] The second mounting plate 111 is arranged on the lower side of the first mounting plate 141 along the third direction C of the clamping mechanism 100, the second mounting plate 111 is fixedly connected to the first mounting plate 141, the second mounting plate 111 is L-shaped, the second mounting plate 111 includes a first sub-mounting plate and a second sub-mounting plate, the first sub-mounting plate extends along the first direction A of the clamping mechanism 100, the second sub-mounting plate extends along the third direction C of the clamping mechanism 100 of the clamping mechanism 100, the second guide rail 112 and the clamping block mounting plate 113 both extend along the third direction C of the clamping mechanism 100 of the clamping mechanism 100, the second guide rail 112 is arranged on the side of the second sub-mounting plate away from the first substrate 12 along the first direction A of the clamping mechanism 100, the setting of the second guide rail 112 facilitates the clamping block mounting plate 113 to move relative to the second mounting plate 111 along the third direction C of the clamping mechanism 100 of the clamping mechanism 100. The clamp block 114 is disposed at one end of the clamp block mounting plate 113 away from the first substrate 12 along the third direction C of the clamp mechanism 100, and the clamp block 114 is disposed on a side surface of the clamp block mounting plate 113 adjacent to the first substrate 12 along the first direction A of the clamp mechanism 100. The thickness direction of the first substrate 12 is the same as the second direction B of the clamp mechanism 100.

[0072] Therefore, the setting of the second mounting plate 111 facilitates the connection between the second clamping device 22 and the first guide rail 142, and the second mounting plate 111 is located on the carrier of the first clamping device 11, providing a basis for the installation of structures such as the second guide rail 112 and the clamping block mounting plate 113. The setting of the second guide rail 112 facilitates the realization of a certain displacement of the clamping block mounting plate 113 relative to the second mounting plate 111 in the third direction C of the clamping mechanism 100, so that the clamping block mounting plate 113 can adapt to battery cells of different heights and achieve precise alignment and clamping of the side surfaces of the battery cells. The clamping block 114 is suitable for direct contact with the two side surfaces of the battery cell along the length direction, ensuring that the first clamping assembly 10 can firmly clamp the battery cell without damaging the surface of the battery cell.

[0073] According to some embodiments of the present invention, Figure 2 As shown, the first clamping device 11 further includes: a guide block 115 and at least one elastic member 116, the guide block 115 is arranged on the second mounting plate 111, and the clamping block mounting plate 113 is guided and matched with the guide block 115; the elastic member 116 is arranged between the guide block 115 and the clamping block mounting plate 113.

[0074] The guide block 115 is arranged on a side of the second sub-mounting plate away from the first substrate 12 along the first direction A of the clamping mechanism 100. The guide block 115 is fixedly connected to the second mounting plate 111. The upper end of the clamping block mounting plate 113 along the third direction C of the clamping mechanism 100 is movably matched with the guide block 115. The guide block 115 is mounted on the second mounting plate 111. Its main function is to provide a guide path for the clamping block mounting plate 113 to ensure that the clamping block mounting plate 113 slides smoothly and is accurately positioned along the second guide rail 112. The elastic member 116 extends along the third direction C of the clamping mechanism 100. One end of the elastic member 116 along the third direction C of the clamping mechanism 100 abuts against a side surface of the guide block 115 along the clamping mechanism 100 adjacent to the clamping block mounting plate 113. The other end of the elastic member 116 along the third direction C of the clamping mechanism 100 abuts against the clamping block mounting plate 113.

[0075] Therefore, the guide matching design between the guide block 115 and the clamping block mounting plate 113 can reduce unnecessary lateral movement or shaking, and improve the stability and accuracy of the clamping process. The setting of the elastic member 116 allows the clamping block mounting plate 113 to fine-tune the position according to the actual height of the battery cell under the guidance of the guide block 115 to achieve better fit. During the process of loading or removing the battery cell, the buffering effect of the elastic member 116 can reduce mechanical wear and extend the service life of the equipment.

[0076] According to some embodiments of the present invention, Figure 2 As shown, the second clamping assembly 20 includes at least one clamping group 21, and the clamping group 21 includes two second clamping devices 22, and the two second clamping devices 22 can move relatively along the thickness direction of the battery cell. The two second clamping devices 22 of the clamping group 21 in the second clamping assembly 20 are arranged relatively along the second direction B of the clamping mechanism 100, and the two second clamping devices 22 can be close to or away from each other along the second direction B of the clamping mechanism 100, and the two second clamping devices 22 can closely and evenly contact and clamp the large surfaces on both sides of the battery cell. Therefore, the second clamping assembly 20 adopts a symmetrical layout of double clamping devices, and the two second clamping devices 22 can be relatively close to or away from each other, so that the clamping mechanism 100 can flexibly adapt to batteries of different sizes, and realize accurate and stable clamping of the battery cell in the thickness direction. The second clamping assembly 20 clamps the large surface of the battery cell through at least one clamping group 21, which greatly improves the stability and reliability of the battery cell during high-speed transportation.

[0077] According to some embodiments of the present invention, Figure 2 and Figure 3As shown, the second clamping assembly 20 includes at least one clamping group 21, the clamping group 21 includes two second clamping devices 22, and the two second clamping devices 22 can move relatively along the thickness direction of the battery cell. The second clamping assembly 20 further includes: a second substrate 23, the second substrate 23 is arranged on the first substrate 12, the second substrate 23 is suitable for being movable along the width direction of the battery cell relative to the first substrate 12, and at least one clamping group 21 is arranged on the second substrate 23, and the two second clamping devices 22 of the clamping group 21 can be relatively close to each other and relatively far away from each other along the width direction of the second substrate 23.

[0078] The second substrate 23 extends along the first direction A of the clamping mechanism 100, and the second substrate 23 is movable along the third direction C of the clamping mechanism 100 relative to the first substrate 12. Two clamping groups 21 can be provided on the second substrate 23, and the two clamping groups 21 are spaced apart along the first direction of the clamping mechanism 100. The clamping groups 21 include two second clamping devices 22 opposite to each other along the second direction B of the clamping mechanism 100.

[0079] Therefore, the arrangement that the second substrate 23 can move along the third direction C of the clamping mechanism 100 relative to the first substrate 12 provides the clamping mechanism 100 with freedom in the width direction of the battery cell. The arrangement that the two second clamping devices 22 in the clamping group 21 can move closer to and farther away from each other along the second direction B of the clamping mechanism 100 provides the clamping mechanism 100 with freedom in the thickness direction of the battery cell. Combined with the first clamping assembly 10, the clamping mechanism 100 can adapt to battery cells of various sizes. No matter whether it is a change in any dimension of length, width or thickness, precise matching can be achieved through corresponding component adjustments. Through the independent adjustable design in three dimensions, the stability of the battery cell during processing and transportation is significantly improved, reducing the risk of processing errors or damage caused by inaccurate positioning or unstable clamping.

[0080] According to some embodiments of the present invention, Figure 3 As shown, the second clamping assembly 20 further includes: at least one second clamping drive device 24 , the second clamping drive device 24 is arranged on the second substrate 23 , and the clamping group 21 is arranged on a side of the second clamping drive device 24 away from the second substrate 23 .

[0081] The second clamping driving device 24 can control the two second clamping devices 22 in the clamping group 21 to move closer to or farther away from each other along the second direction B of the clamping mechanism 100 .

[0082] Therefore, the second driving device 26 can provide power for the movement of the clamping group 21, realize the position adjustment of the second clamping assembly 20 in the thickness direction of the battery cell, greatly enhance the flexibility and adaptability of the second clamping assembly 20, and through the control of the automatic driving device 26, the clamping position can be quickly adjusted, reducing manual intervention, improving production efficiency and processing accuracy, and can also solve the problem of incompatibility between the clamping mechanism 100 and products of different thicknesses when multiple products of different thicknesses need to be stacked during the production process of the existing battery cell stacking clamping mechanism 100.

[0083] According to some embodiments of the present invention, Figure 3 As shown, the second clamping assembly 20 further includes: at least one third adapter plate 25 , and the third adapter plate 25 is arranged between the second base plate 23 and the second clamping drive device 24 .

[0084] The third adapter plate 25 is connected to a side surface of the second substrate 23 along the clamping mechanism 100 along the third direction C away from the second substrate 23. The third adapter plate 25 serves as a bridge between the second substrate 23 and the second clamping drive device 24. Its main function is to effectively transmit the driving force generated by the second clamping drive device 24 to the second substrate 23. At the same time, it may be responsible for fine-tuning the position or angle between the drive device 26 and the substrate.

[0085] Therefore, the provision of the third adapter plate 25 can enhance the structural stability of the entire second clamping assembly 20, especially when it needs to withstand a larger clamping force or frequent movement. The third adapter plate 25 can also provide necessary buffering, reduce the vibration or impact that may be caused by direct transmission, and protect the second clamping drive device 24 and the second substrate 23 from damage.

[0086] According to some embodiments of the present invention, Figure 3 As shown, two second clamping drive devices 24 are respectively provided at both ends of the second substrate 23 in the length direction; there are two clamping groups 21, and the two clamping groups 21 are respectively connected to the two second clamping drive devices 24.

[0087] The two second clamping drive devices 24 are arranged on the side of the second substrate 23 away from the first substrate 12 along the third direction C of the clamping mechanism 100, and the two second clamping drive devices 24 are respectively arranged at both ends of the second substrate 23 along the first direction A of the clamping mechanism 100. The two second clamping drive devices 24 are respectively connected to the two clamping groups 21, and the two clamping groups 21 are arranged at intervals along the first direction A of the clamping mechanism 100.

[0088] Therefore, the arrangement and arrangement position of the two second clamping drive devices 24 can ensure the balance and uniform distribution of the driving force, which is conducive to driving the second substrate 23 to move smoothly along the third direction C of the clamping mechanism 100. The two clamping groups 21 are respectively connected to the two second clamping drive devices 24. This one-to-one connection method ensures that each clamping group 21 can work independently and coordinately. The clamping group 21 makes precise position adjustments according to the instructions of the second clamping drive device 24. The two second clamping devices 22 included in each clamping group 21 can be relatively close to or away from each other along the width direction of the second substrate 23, so as to achieve effective clamping of the large surfaces on both sides of the battery cell, and provide more reliable guarantee for the precise positioning and efficient clamping of the clamping mechanism 100 in the process of clamping the battery cell.

[0089] According to some embodiments of the present invention, Figure 3 As shown, the second clamping drive 24 comprises a parallel jaw cylinder.

[0090] The parallel jaw cylinder is usually composed of a cylinder body, a piston, a piston rod and a pair of parallel mounted jaws. When the gas pressure in the cylinder changes, the piston drives the piston rod to move, thereby driving the jaws connected to the piston rod to perform parallel opening and closing movements in a specific direction. The parallel motion characteristics of the parallel jaw cylinder enable it to drive the two second clamping devices 22 of the clamping group 21 to accurately fit the side of the battery cell. This precise and parallel clamping action is particularly important when handling thin-walled or fragile batteries, and can effectively reduce deformation or damage caused by uneven clamping.

[0091] Therefore, by setting the parallel clamping cylinders at both ends of the second substrate 23 and connecting them to the clamping group 21, not only the large surfaces on both sides of the battery cell are effectively and evenly clamped, but also the efficient execution of the clamping action is ensured through the rapid response and control of the pneumatic system.

[0092] According to some embodiments of the present invention, Figure 1 and Figure 3 As shown, it further includes: a driving device 26, which is arranged between the first substrate 12 and the second substrate 23. When the driving device 26 is working, the driving device 26 drives the second substrate 23 to move closer to and away from the first substrate 12.

[0093] The drive device 26 can drive the second substrate 23 to move relative to the first substrate 12 along the third direction C of the clamping mechanism 100 in a direction away from or close to the first substrate 12, thereby driving the second clamping assembly 20 to move as a whole in the third direction C of the clamping mechanism 100.

[0094] Therefore, the setting of the driving device 26 provides power for the movement of the second clamping assembly 20, realizes the position adjustment of the second clamping assembly 20 in the width direction of the battery cell, greatly enhances the flexibility and adaptability of the second clamping assembly 20, realizes the movement of the clamping mechanism 100 in the third direction C, and enables the clamping mechanism 100 to avoid the stacked battery cells in the third direction C, so that the clamping mechanism 100 can be quickly and accurately positioned during the process of transporting the battery cells, thereby improving the overall production efficiency.

[0095] According to some embodiments of the present invention, Figure 3 As shown, the driving device 26 includes: a driving cylinder 27 and a connecting plate 28. The driving cylinder 27 is arranged on the second substrate 23. The driving cylinder 27 includes a driving piston rod. The driving cylinder 27 is the power source for driving the entire second substrate 23 to move. The driving cylinder 27 uses compressed air as a medium. When the air pressure enters the cylinder, the driving piston rod moves in a predetermined direction, thereby realizing the push-pull action of the external mechanical parts; the connecting plate 28 is connected to the free end of the driving piston rod, and the connecting plate 28 is connected to the first substrate 12. The connecting plate 28 is fixedly connected to the first substrate 12, and the first substrate 12 remains fixed during the clamping process. The free end of the driving piston rod is connected to the connecting plate 28, and the driving piston rod can push the driving cylinder 27 and then drive the second substrate 23 to move relative to the first substrate 12 in the third direction C of the clamping mechanism 100.

[0096] Therefore, by controlling the driving cylinder 27, it is possible to quickly respond to changes in the battery cell size and achieve dynamic adjustment, thereby improving the flexibility and adaptability of the equipment. The second clamping assembly 20 can be accurately adjusted to a position suitable for the current battery cell width to ensure the stability and accuracy of the clamping. The driving device 26 adopts a simple mechanical structure of a cylinder and a connecting plate 28, which is easy to install and maintain, thereby reducing the complexity and potential failure rate of the clamping mechanism 100.

[0097] According to some embodiments of the present invention, Figure 1 and Figure 3 As shown, the second clamping assembly 20 also includes: at least one guide group 29, the guide group 29 includes at least one guide rod 291, one end of the guide rod 291 is connected to the second substrate 23, and the other end of the guide rod 291 is guided and matched with the first substrate 12.

[0098] The guide rod 291 extends along the third direction C of the clamping mechanism 100, at least one guide hole is formed on the first substrate 12, and the guide hole is arranged along the third direction C of the clamping mechanism 100 through the first substrate 12, one end of the guide rod 291 along the third direction C is connected to the second substrate 23, and the guide rod 291 is arranged in the guide hole of the first substrate 12. When the second substrate 23 moves relative to the first substrate 12 along the third direction C of the clamping mechanism 100, the guide rod 291 moves relative to the guide hole.

[0099] Therefore, the guiding cooperation between the guide rod 291 and the first substrate 12 ensures that the second substrate 23 can move along a precise path during movement, avoiding deviation or shaking, so that the movement of the second substrate 23 along the width direction of the battery cell is not only smooth but also stable within the full stroke range, thereby improving the reliability and stability of the clamping mechanism 100.

[0100] According to some embodiments of the present invention, Figure 3 As shown, there are multiple guide rods 291, and the multiple guide rods 291 are arranged at intervals along the width direction of the second substrate 23; the clamping mechanism 100 also includes a limit member 292, and the ends of the multiple guide rods 291 away from the second substrate 23 are connected by the limit member 292, and the limit member 292 is located on the side of the first substrate 12 away from the second substrate 23.

[0101] A stopper 292 is provided at the other end of the guide rod 291 along the third direction C of the clamping mechanism 100, and the stopper 292 extends along the first direction A of the clamping mechanism 100. After the second substrate 23 drives the guide rod 291 to move a certain distance along the third direction C of the clamping mechanism 100 in a direction away from the first substrate 12, the stopper 292 abuts against a side surface of the first substrate 12 along the third direction C of the clamping mechanism 100 away from the second substrate 23, so as to limit the second substrate 23 from continuing to move in a direction away from the first substrate 12.

[0102] Therefore, the arrangement of multiple guide rods 291 facilitates improving the stability of the second substrate 23 during movement and enhancing the overall rigidity of the guide group 29. The main function of the limiter 292 is to provide an end position limit for the movement of the guide rod 291, prevent the guide rod 291 from exceeding the predetermined stroke, and prevent the risk of the second clamping mechanism 100 being separated from the clamping mechanism 100, thereby achieving precise guidance and control of the movement of the second substrate 23, and ensuring the stability and durability of the entire system, providing a more accurate and reliable clamping solution for the battery cell clamping process.

[0103] According to some embodiments of the present invention, Figure 3 As shown, there are multiple guide groups 29 , and the multiple guide groups 29 are arranged at intervals along the length direction of the second substrate 23 .

[0104] That is, a plurality of guide groups 29 are distributed over the entire length of the second substrate 23, and each guide group 29 includes a plurality of guide rods 291. This layout makes the force acting on the second substrate 23 more evenly distributed, avoids concentrated force points, and reduces local stress concentration, thereby protecting the second substrate 23. The arrangement of the plurality of guide groups 29 can ensure the linearity and stability of the movement of the second substrate 23 in the third direction C of the clamping mechanism 100, thereby enhancing the structural stability of the entire clamping mechanism 100.

[0105] According to the battery cell stacking device of the second aspect embodiment of the utility model, the battery cell stacking device includes a battery cell stacking mechanism and a clamping mechanism 100 for battery cells. The clamping mechanism 100 for battery cells is the clamping mechanism 100 for battery cells according to the above-mentioned first aspect embodiment of the utility model.

[0106] According to the battery cell stacking device of the embodiment of the utility model, the battery cell stacking structure is used for orderly arrangement and stacking of battery cells to ensure that the battery cells are accurately placed in a predetermined order and position. The clamping mechanism 100 for the battery cell realizes all-round stable clamping of the battery cell in the length direction, thickness direction and width direction through the synergistic effect of the first clamping assembly 10 and the second clamping assembly 20. The battery cell stacking device can effectively improve the working efficiency of the battery cell stacking device and ensure high-quality completion of the stacking work by applying the battery cell stacking structure and the clamping mechanism 100 for the battery cell in the above embodiment.

[0107] According to the battery production line of the embodiment of the third aspect of the utility model, the battery production line includes battery assembly equipment and battery cell stacking equipment according to the embodiment of the second aspect of the utility model.

[0108] According to the battery production line of the embodiment of the utility model, the battery assembly equipment is responsible for multiple key steps of battery production, including but not limited to pre-processing of battery cells, assembly of battery modules, electrical connection, installation of thermal management system, shell packaging and final performance testing, etc. By applying the battery cell stacking equipment described in the above embodiment, the battery cell stacking process can be optimized to improve the working efficiency and product quality of the battery production line.

[0109] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0110] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0111] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0112] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A clamping mechanism for a battery cell, characterized in that: include: A first clamping assembly, wherein the first clamping assembly is suitable for clamping both end surfaces of the battery core in the length direction; A second clamping assembly, wherein the second clamping assembly is connected to the first clamping assembly, and the second clamping assembly is suitable for clamping two side surfaces of the battery core in a thickness direction.

2. The clamping mechanism for a battery cell according to claim 1, characterized in that: The first clamping assembly includes two first clamping devices, and the two first clamping devices are relatively movable along the length direction of the battery core.

3. The clamping mechanism for a battery cell according to claim 2, characterized in that: One of the two first clamping devices is maintained at a reference position, and the other of the two first clamping devices is movable along the length direction of the battery core to approach or move away from the one of the two first clamping devices.

4. The clamping mechanism for a battery cell according to claim 2, characterized in that: The first clamping assembly further comprises: A first substrate, two first clamping devices are respectively disposed at two ends of the first substrate in the length direction, and the two first clamping devices can be relatively close to each other and relatively far away from each other along the length direction of the first substrate.

5. The clamping mechanism for a battery cell according to claim 4, characterized in that: The first clamping assembly further comprises: Two first clamping driving devices, wherein the two first clamping driving devices are respectively arranged at two ends of the first substrate in the length direction; Two first guide rail devices, both of which are movably matched with the first substrate along the length direction of the first substrate, the two first guide rail devices are respectively connected to the two first clamping drive devices, and the two first clamping devices are respectively arranged on the two first guide rail devices. When the first clamping drive device is working, the first clamping drive device drives the first guide rail device to drive the corresponding first clamping device to move along the length direction of the first substrate.

6. The clamping mechanism for a battery cell according to claim 5, characterized in that: The first clamping drive device comprises: A first driving cylinder, the first driving cylinder is disposed on the first substrate, and the first driving cylinder comprises a first piston rod; A first adapter, wherein the first adapter is arranged on the first guide rail device, and the free end of the first piston rod is connected to the first adapter.

7. The clamping mechanism for a battery cell according to claim 6, characterized in that: The first clamping drive device further comprises: A first connecting rod is connected between the first piston rod and the first adapter.

8. The clamping mechanism for a battery cell according to claim 7, characterized in that: The first connecting rod of at least one of the two first clamping drive devices has a stop portion; The first clamping assembly further comprises: A reference block is provided on the first substrate, and the abutment portion is suitable for abutting against the reference block.

9. The clamping mechanism for a battery cell according to claim 6, characterized in that: The first guide rail device comprises: A first mounting plate, wherein the first clamping device and the first adapter are respectively arranged on two sides of the first mounting plate; A first guide rail is provided on the first mounting plate, and the first guide rail is movably matched with the first substrate along the length direction of the first substrate.

10. The clamping mechanism for a battery cell according to claim 5, characterized in that: The first clamping device comprises: a second mounting plate, the second mounting plate being arranged on the first guide rail device; a second guide rail, the second guide rail being arranged on the second mounting plate, and the second guide rail extending along a thickness direction of the first substrate; A clamping block mounting plate, the clamping block mounting plate being movably matched with the second guide rail; A clamping block is arranged on a side surface of the clamping block mounting plate facing another first clamping device.

11. The clamping mechanism for a battery cell according to claim 10, characterized in that: The first clamping device further comprises: A guide block, wherein the guide block is arranged on the second mounting plate, and the clamping block mounting plate cooperates with the guide block in a guiding manner; At least one elastic member is disposed between the guide block and the clamping block mounting plate.

12. The clamping mechanism for a battery cell according to any one of claims 1 to 11, characterized in that: The second clamping assembly includes at least one clamping group, and the clamping group includes two second clamping devices. The two second clamping devices can move relatively along the thickness direction of the battery core.

13. The clamping mechanism for a battery cell according to any one of claims 4 to 11, characterized in that: The second clamping assembly includes at least one clamping group, the clamping group includes two second clamping devices, and the two second clamping devices are relatively movable along the thickness direction of the battery core; The second clamping assembly further comprises: A second substrate, wherein the second substrate is arranged on the first substrate, and the second substrate is suitable for being movable along the width direction of the battery cell relative to the first substrate, and at least one group of the clamping groups is arranged on the second substrate, and the two second clamping devices of the clamping group can be relatively close to each other and relatively far away from each other along the width direction of the second substrate.

14. The clamping mechanism for a battery cell according to claim 13, characterized in that: The second clamping assembly further comprises: At least one second clamping drive device, wherein the second clamping drive device is arranged on the second substrate, and the clamping group is arranged on a side of the second clamping drive device away from the second substrate.

15. The clamping mechanism for a battery cell according to claim 14, characterized in that: The second clamping assembly further comprises: At least one third adapter plate, wherein the third adapter plate is disposed between the second substrate and the second clamping drive device.

16. The clamping mechanism for a battery cell according to claim 14, characterized in that: Two second clamping drive devices are respectively provided at two ends of the second substrate in the length direction; There are two clamping groups, and the two clamping groups are respectively connected to two second clamping drive devices.

17. The clamping mechanism for a battery cell according to claim 14, characterized in that: The second clamping drive device includes a parallel jaw cylinder.

18. The clamping mechanism for a battery cell according to claim 13, characterized in that: Further including: A driving device is provided between the first substrate and the second substrate. When the driving device is working, the driving device drives the second substrate to move closer to and away from the first substrate.

19. The clamping mechanism for a battery cell according to claim 18, characterized in that: The driving device comprises: A driving cylinder, the driving cylinder is arranged on the second substrate, and the driving cylinder comprises a driving piston rod; A connecting plate, wherein the connecting plate is connected to the free end of the driving piston rod, and the connecting plate is connected to the first base plate.

20. The clamping mechanism for a battery cell according to claim 13, characterized in that: The second clamping assembly also includes: At least one guide group, the guide group includes at least one guide rod, one end of the guide rod is connected to the second substrate, and the other end of the guide rod is guided and matched with the first substrate.

21. The clamping mechanism for a battery cell according to claim 20, characterized in that: There are a plurality of guide rods, and the plurality of guide rods are arranged at intervals along the width direction of the second substrate; The clamping mechanism further includes a limiting member, through which ends of the plurality of guide rods away from the second substrate are connected, and the limiting member is located on a side of the first substrate away from the second substrate.

22. The clamping mechanism for a battery cell according to claim 20, characterized in that: There are a plurality of guide groups, and the plurality of guide groups are arranged at intervals along the length direction of the second substrate.

23. A battery cell stacking device, characterized in that: The battery cell stacking device comprises a battery cell stacking mechanism and a clamping mechanism for battery cells, and the clamping mechanism for battery cells is the clamping mechanism for battery cells described in any one of claims 1-22.

24. A battery production line, characterized in that: The battery production line includes battery assembly equipment and the battery cell stacking equipment described in claim 23.

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