Battery cell stacking and transferring equipment

Abstract

The utility model provides battery cell stacking and transferring equipment which comprises a rack, a battery cell stacking device and a battery cell transferring device. The tray is arranged on the rack and can do reciprocating motion between the stacking area and the transferring area; the side pressing mechanism is located on the side edge of the rack and is close to the stacking area; the end pressing mechanism is arranged on the tray and comprises a fixed part, a movable part and a supporting part which are arranged on the tray, the supporting part is located between the fixed part and the movable part, and the movable part can be close to or away from the fixed part; wherein the movable part comprises a movable plate, a movable pressure head and a claw body, the movable pressure head and the claw body are arranged on the movable plate, and the claw body can move in the length direction of the battery module and the width direction of the battery module relative to the movable pressure head. The claw body acts on the battery cell stack, so that the displacement of the battery cell in the width direction of the battery module in the shaping process of the side pressing mechanism can be reduced, the flatness of the side surface of the battery module is ensured, and meanwhile, the glue can be prevented from overflowing from the large surface of the battery cell.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery cell stacking and transfer device. Background Technology

[0002] like Figure 12 and Figure 13 As shown, the battery module 5 is composed of multiple battery cells 51 stacked together. The stacked battery cells 51 need to be shaped by a side pressing mechanism to ensure the flatness of the side surface of the battery module 5. Since adhesive is applied between adjacent battery cells 51 during stacking, if the battery cell 51 has a large displacement in the width direction Y of the battery module during the side pressing mechanism shaping process, there is a risk that the adhesive will overflow from the large surface 510 of the battery cell to the side surface 511 of the battery cell. Therefore, how to ensure the accuracy of the position of a single battery cell 51 in the width direction Y of the battery module during the stacking process is an urgent problem to be solved. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a battery cell stacking and transfer device, which can reduce the displacement of the battery cells when the side pressure mechanism is in action, and avoid the risk of adhesive overflowing from the large surface of the battery cells.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] A battery cell stacking and transfer device includes: a frame having a stacking area and a transfer area spaced apart along a first direction; a tray disposed on the frame and capable of reciprocating between the stacking area and the transfer area; a side pressing mechanism located on the side of the frame and close to the stacking area; and an end pressing mechanism disposed on the tray, including a fixed part, a movable part, and a support part disposed on the tray, the support part being located between the fixed part and the movable part, and the movable part being capable of moving closer to or further away from the fixed part; wherein the movable part includes a movable plate, a movable pressure head, and a claw body, the movable pressure head and the claw body being disposed on the movable plate, and the claw body being capable of moving relative to the movable pressure head in the length direction and the width direction of the battery module.

[0006] According to a preferred embodiment, the movable pressure head includes a first pressure plate disposed on the movable plate, a first end pressure surface disposed on the side of the first pressure plate facing the fixed part, and a first limiting component disposed on the periphery of the first end pressure surface for limiting the first end plate of the battery module.

[0007] According to a preferred embodiment, the claw body is provided with a first limiting surface and a second limiting surface that are perpendicular to each other. The length direction of the battery module is perpendicular to the first limiting surface, and the width direction of the battery module is perpendicular to the second limiting surface.

[0008] According to a preferred embodiment, the movable plate is slidably connected to the tray, a ball screw is rotatably mounted on the tray, and the movable plate is drivingly connected to the ball screw; the axial direction of the ball screw is parallel to the length direction of the battery module.

[0009] According to a preferred embodiment, a baffle is provided on the movable plate, and a first pressure plate is slidably disposed on the movable plate, with the first pressure plate located between the fixed part and the baffle; a pressure sensor is provided on the baffle, with the pressure sensor located between the first pressure plate and the baffle.

[0010] According to a preferred embodiment, there is an adjustable gap between the first pressure plate and the movable plate, and a support plate is adjustablely disposed within the adjustable gap. The support plate can move closer to or further away from the fixing part along the length direction of the battery module, and the support plate can extend below the first end pressure surface to support the first end plate of the battery module.

[0011] According to a preferred embodiment, the fixing part includes a main board fixedly mounted on the tray and a sub-plate slidably mounted on the tray, the sub-plate being located between the main board and the support part; the sub-plate has a second end pressing surface on the side facing the support part for assembling the second end plate of the battery module; a driving member is provided on the main board or the tray for driving the sub-plate to move closer to or away from the support part along the length direction of the battery module; a self-locking member is provided on the main board for limiting the sub-plate in the length direction of the battery module.

[0012] According to a preferred embodiment, the self-locking component includes an adjusting plate and a locking plate connected to each other, wherein: the adjusting plate is adjustablely disposed on the main board, and the locking plate extends from the main board toward the sub-board; when the sub-board is in a locked state, the locking plate abuts against the sub-board in the length direction of the battery module; when the sub-board is in a unlocked state, the locking plate disengages from the sub-board in the length direction of the battery module.

[0013] According to a preferred embodiment, the side-pressing mechanism includes a main frame and a sub-frame, the sub-frame being slidably connected to the main frame, and a side-pressing plate being provided on the side of the sub-frame facing the stacking area; a stabilizing gear is rotatably mounted on the main frame, and a stabilizing rack that meshes with the stabilizing gear is provided on the sub-frame.

[0014] According to a preferred embodiment, a longitudinal pressing assembly is provided on the sub-frame. The longitudinal pressing assembly includes a translational plate slidably disposed on the sub-frame. The translational plate can move closer to or further away from the stacking area. A longitudinal plate is provided at the end of the translational plate near the stacking area. The longitudinal plate can move longitudinally. A pressure roller for pressing the battery cell is disposed on the longitudinal plate.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] In this invention, after the battery cell is fed into the support part, the claw body positions the battery cell on the support part in the width direction of the battery module. Then, the battery cells are stacked sequentially in the length direction of the battery module. Finally, the side pressing mechanism further shapes the cells. The precise stacking of the battery cells by the claw body can greatly reduce the displacement of the battery cells in the width direction of the battery module during the shaping process of the side pressing mechanism. This ensures the flatness of the side of the battery module and prevents adhesive from overflowing from the large surface of the battery cell to the side of the battery cell. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural schematic diagram of the battery cell stacking and transfer device provided in this embodiment of the utility model;

[0019] Figure 2 A first schematic diagram of the assembly structure of the frame, tray, side pressure mechanism and end pressure mechanism provided in an embodiment of this utility model;

[0020] Figure 3 A second schematic diagram of the assembly structure of the frame, tray, side pressure mechanism and end pressure mechanism provided in an embodiment of this utility model;

[0021] Figure 4 A three-dimensional structural diagram of the end-pressing mechanism assembled on the tray according to an embodiment of this utility model;

[0022] Figure 5 A first three-dimensional structural schematic diagram of the movable part provided in an embodiment of this utility model;

[0023] Figure 6 This is a second three-dimensional structural diagram of the movable part provided in an embodiment of the present utility model;

[0024] Figure 7A three-dimensional structural diagram of the fixing part provided in an embodiment of this utility model;

[0025] Figure 8 A first three-dimensional structural schematic diagram of the sub-plate provided in an embodiment of this utility model;

[0026] Figure 9 This is a schematic diagram of the second three-dimensional structure of the sub-plate provided in an embodiment of the present utility model;

[0027] Figure 10 A first three-dimensional structural schematic diagram of the side-pressure mechanism provided in an embodiment of this utility model;

[0028] Figure 11 A second three-dimensional structural schematic diagram of the side-pressure mechanism provided in an embodiment of this utility model;

[0029] Figure 12 This is a three-dimensional structural diagram of the battery module provided in an embodiment of the present utility model;

[0030] Figure 13 This is a three-dimensional structural diagram of the battery cell provided in an embodiment of the present utility model.

[0031] Icons: 1. Feeding mechanism; 2. Frame; 201. Stacking area; 202. Transfer area; 21. Side pressing mechanism; 211. Main frame; 212. Sub-frame; 2121. Side pressing plate; 213. Stabilizing gear; 214. Stabilizing rack; 215. Longitudinal pressing assembly; 2151. Translational plate; 2152. Longitudinal plate; 2153. Pressure roller; 22. End pressing mechanism; 221. Fixing part; 2210. Main plate; 2211. Sub-plate; 2212. Second end pressing surface; 2213. Driving component; 2214. Self-locking component; 22141. Adjusting plate; 22142. Locking plate; 222. Moving part; 2220. First pressing plate; 22201. First end pressing surface; 22202. First limit block; 2221. 1. Movable plate; 22210. Second limiting block; 2222. Horizontal pressure block; 2223. Longitudinal pressure plate; 22231. Longitudinal pressure frame; 22232. Longitudinal pressure head; 2224. Claw body; 22241. First limiting surface; 22242. Second limiting surface; 2225. Slide cylinder; 2226. Support plate; 2227. Baffle; 2228. Pressure sensor; 223. Support part; 3. Gantry frame; 31. Unloading gripper; 4. Tray; 41. Ball screw; 5. Battery module; 51. Battery cell; 510. Large surface of battery cell; 511. Side surface of battery cell; 52. First end plate; 53. Second end plate; 54. Hoop ring; X, length direction of battery module; Y, width direction of battery module; Z, longitudinal direction. Detailed Implementation

[0032] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0035] Please refer to Figures 1 to 13A battery cell stacking and transfer device includes a frame 2, a tray 4, a side pressing mechanism 21, and an end pressing mechanism 22. The frame 2 has a stacking area 201 and a transfer area 202 spaced apart along a first direction. The tray 4 is disposed on the frame 2 and can reciprocate between the stacking area 201 and the transfer area 202. The side pressing mechanism 21 is located on the side of the frame 2 and is disposed close to the stacking area 201. The end pressing mechanism 22 is disposed on the tray 4 and includes a fixed part 221, a movable part 222, and a support part 223 disposed on the tray 4. The support part 223 is located between the fixed part 221 and the movable part 222. The movable part 222 can move closer to or further away from the fixed part 221. The movable part 222 includes a movable plate 2221, a movable pressure head, and a claw body 2224. The movable pressure head and the claw body 2224 are disposed on the movable plate 2221. The claw body 2224 can move relative to the movable pressure head in the length direction X and the width direction Y of the battery module. In this embodiment, the battery cells 51 forming the battery module 5 are stacked on the support 223. Specifically, after the battery cells 51 are fed to the support 223, the claw 2224 positions the battery cells 51 on the support 223 in the width direction Y of the battery module. Then, the battery cells 51 are stacked sequentially in the length direction X of the battery module. Finally, the side pressing mechanism 21 further shapes the cells. In this way, the flatness of the side of the battery module 5 can be guaranteed, which is beneficial to improving the stacking quality of the battery cells 51. Since adhesive needs to be applied between adjacent battery cells 51 during stacking, the displacement of battery cell 51 in the width direction Y of the battery module during the shaping step of the side pressing mechanism 21 should not be too large. Otherwise, there is a risk that adhesive will overflow from the large surface 510 of the battery cell to the side surface 511 of the battery cell. Therefore, it is necessary to accurately place the battery cell 51 in the width direction Y of the battery module using the claw body 2224 before the overall shaping by the side pressing mechanism 21. This can greatly reduce the displacement of battery cell 51 in the width direction Y of the battery module during the shaping process of the side pressing mechanism 21. After the shaping is completed, the battery module 5 is transferred from the stacking area 201 to the transfer area 202 via the tray 4 for unloading or further processing.

[0036] The claw body 2224 is provided with a first limiting surface 22241 and a second limiting surface 22242 that are perpendicular to each other. The length direction X of the battery module is perpendicular to the first limiting surface 22241, and the width direction Y of the battery module is perpendicular to the second limiting surface 22242. In use, the first limiting surface 22241 is attached to the large surface 510 of the battery cell, and the second limiting surface 22242 is attached to the side surface 511 of the battery cell. The two opposing claw bodies 2224 cooperate with each other to position the battery cell 51 in the width direction Y of the battery module.

[0037] In this embodiment, as Figure 5As shown, a slide cylinder 2225 is provided on the movable plate 2221 to drive the claw body 2224 to move along the length direction X of the battery module. The slide cylinder 2225 is provided with a cylinder or electric cylinder to drive the claw body 2224 to move along the width direction Y of the battery module. The cylinder or electric cylinder is driven by the slide cylinder 2225 to move synchronously with the claw body 2224 along the length direction X of the battery module.

[0038] like Figure 4 As shown, the movable plate 2221 and the tray 4 are slidably connected via a slide rail slider assembly. A ball screw 41 is rotatably mounted on the tray 4, and the movable plate 2221 is connected to the ball screw 41 in a transmission manner. The axial direction of the ball screw 41 is parallel to the length direction X of the battery module. Here, the ball screw precisely controls the position of the battery cell 51 in the length direction X of the battery module, thereby effectively ensuring the accuracy between the stacked battery cells 51, that is, the battery cells 51 within the battery module 5.

[0039] Furthermore, such as Figure 5 and Figure 6 As shown, the movable pressure head includes a first pressure plate 2220 disposed on the movable plate 2221. The first pressure plate 2220 has a first end pressure surface 22201 disposed on the side facing the fixed part 221. A first limiting component is disposed on the periphery of the first end pressure surface 22201 to limit the first end plate 52 of the battery module 5. In use, the first end plate 52 is attached to the first end pressure surface 22201 and is limited and fixed in the area of ​​the first end pressure surface 22201 by the first limiting component. After the cells 51 of the battery module 5 are stacked, the movable plate 2221 moves toward the support part 223 to attach the first end plate 52 to the large surface 510 of the cell.

[0040] like Figure 5 As shown, the first limiting component includes a lateral limiting member and a longitudinal limiting member. The lateral limiting member includes a horizontal pressing block 2222 that is slidably mounted on the first pressure plate 2220 via a slide rail slider assembly. The horizontal pressing block 2222 is driven by a cylinder mounted on the first pressure plate 2220 to abut against or disengage from the first end plate 52 in the horizontal direction. In this embodiment, there are two lateral limiting members, arranged opposite each other about the center of the first end pressing surface 22201.

[0041] The longitudinal limiting component includes a longitudinal pressure plate 2223 that is slidably mounted on the first pressure plate 2220 via a slide rail slider assembly. A longitudinal pressure frame 22231 is provided on the longitudinal pressure plate 2223, and the longitudinal pressure frame 22231 extends above the first end pressure surface 22201. The longitudinal pressure plate 2223 is driven by a cylinder or electric cylinder provided on the first pressure plate 2220 to move longitudinally in the Z direction, so that the longitudinal pressure head 22232 provided on the main pressure frame abuts against or disengages from the first end plate 52.

[0042] In this embodiment, there is an adjustable gap (not shown in the figure) between the first pressure plate 2220 and the movable plate 2221. A support plate 2226 is adjustablely disposed within the adjustable gap. The support plate 2226 can move closer to or further away from the fixing part 221 along the length direction X of the battery module. The support plate 2226 can extend below the first end pressure surface 22201 to support the first end plate 52 of the battery module 5. Preferably, the support plate 2226 is slidably mounted on the movable plate 2221 via a slide rail slider assembly. The support plate 2226 cooperates with the longitudinal pressure head 22232 to limit the first end plate 52 in the longitudinal direction Z. In use, after the first end plate 52 is assembled, the support plate 2226 moves toward the side away from the fixing part 221 so that the support plate 2226 disengages from the first end plate 52, so that the clamping ring 54 can be fitted onto the first end plate 52.

[0043] like Figure 5 As shown, a baffle 2227 is provided on the movable plate 2221, and a first pressure plate 2220 is slidably disposed on the movable plate 2221, located between the fixed part 221 and the baffle 2227. A pressure sensor 2228 is provided on the baffle 2227, located between the first pressure plate 2220 and the baffle 2227. In this embodiment, the first pressure plate 2220 is slidably connected to the movable plate 2221 via a slide rail slider assembly. During the process of applying pressure from the movable end toward the fixed end to shape the battery module 5, the first pressure plate 2220 has a small amplitude movement toward the baffle 2227, so that the pressure sensor 2228 can monitor the pressure value to determine the shaping force of the battery module 5.

[0044] In this embodiment, in order to limit the range of motion of the first pressure plate 2220, such as Figure 5 As shown, a first limiting block 22202 is provided on the first pressure plate 2220, and a second limiting block 22210 is provided on the movable plate 2221. A limiting notch is provided on the first limiting block 22202, and the second limiting block 22210 is embedded in the limiting notch.

[0045] like Figure 4 , Figure 7 , Figure 8 and Figure 9As shown, the fixing part 221 includes a main board 2210 fixedly mounted on the tray 4 and a sub-plate 2211 slidably mounted on the tray 4. The sub-plate 2211 is located between the main board 2210 and the support part 223. The sub-plate 2211 has a second end pressing surface 2212 on the side facing the support part 223 for assembling the second end plate 53 of the battery module 5. The main board 2210 or the tray 4 is provided with a driving member 2213 for driving the sub-plate 2211 to move closer to or away from the support part 223 along the length direction X of the battery module. The main board 2210 is provided with a self-locking member 2214 for limiting the sub-plate 2211 in the length direction X of the battery module. In this embodiment, the sub-plate 2211 is slidably connected to the tray 4 through the slide rail slider assembly, and the second end plate 53 is attached to the second end pressure surface 2212. Corresponding to the first end pressure surface 22201, the second end pressure surface 2212 is provided with a second limiting component for limiting the second end plate 53. The structure and working principle of the second limiting component are the same as the first limiting component mentioned above, and will not be described again here.

[0046] Specifically, when the second baffle 2227 needs to be assembled, the self-locking member 2214 releases the lock on the sub-plate 2211. The sub-plate 2211 is driven to move toward the main plate 2210 by a cylinder or electric cylinder (drive member 2213) set on the tray 4 or the main plate 2210, so as to make room between the sub-plate 2211 and the support part 223, so as to facilitate the assembly of the second end plate 53. After the second end plate 53 is assembled, the sub-plate 2211 moves toward the support part 223 to reach the working position and is locked by the self-locking member 2214.

[0047] In this embodiment, as Figure 7 As shown, the self-locking component 2214 includes an adjusting plate 22141 and a locking plate 22142 connected to each other. The adjusting plate 22141 is adjustablely disposed on the main board 2210. The locking plate 22142 extends from the main board 2210 toward the sub-board 2211. When the sub-board 2211 is in the locked state, the locking plate 22142 abuts against the sub-board 2211 in the longitudinal direction X of the battery module. When the sub-board 2211 is in the unlocked state, the locking plate 22142 disengages from the sub-board 2211 in the longitudinal direction X of the battery module. The adjusting plate 22141 is slidably connected to the main board 2210 via a slide rail slider assembly and is driven by a cylinder or electric cylinder disposed on the main board 2210 to move longitudinally Z, thereby driving the locking plate 22142 to move relative to the sub-board 2211 in the longitudinal direction Z to unlock or lock the sub-board 2211.

[0048] In some embodiments, the motherboard 2210 and the tray 4 are detachably assembled by bolts, so that the mounting position of the fixing part 221 on the tray 4 can be adjusted to adapt to the processing of battery modules 5 of different specifications.

[0049] like Figure 10and Figure 11 As shown, the side-pressing mechanism 21 includes a main frame 211 and a sub-frame 212. The sub-frame 212 is slidably connected to the main frame 211 via a slide rail slider. A side-pressing plate 2121 is provided on the side of the sub-frame 212 facing the stacking area 201. A longitudinal pressing component 215 is slidably mounted on the sub-frame 212 via a slide rail slider assembly for longitudinally Z-shaped shaping of the battery module 5 to ensure the flatness of the bottom of the battery module 5. In this embodiment, an electric cylinder for driving the sub-frame 212 is provided on the main frame 211. To improve the stability of the movement of the sub-frame 212, a stabilizing gear 213 is rotatably mounted on the main frame 211, and a stabilizing rack 214 meshing with the stabilizing gear 213 is provided on the sub-frame 212.

[0050] Specifically, the longitudinal pressing assembly 215 includes a translational plate 2151 mounted on the sub-frame 212 via a slide rail slider assembly. The translational plate 2151 is driven by an electric cylinder positioned between the sub-frame 212 and the translational plate 2151 to move closer to or away from the stacking area 201. The end of the translational plate 2151 near the stacking area 201 is provided with a longitudinal plate 2152 via the slide rail slider assembly. The longitudinal plate 2152 is driven by an electric cylinder mounted on the translational plate 2151 to move longitudinally along the Z direction. A pressure roller 2153 for pressing the battery cell 51 is disposed on the longitudinal plate 2152.

[0051] like Figure 1 and Figure 2 As shown, in some embodiments, two sets of frames 2 can be used in conjunction with two sets of side pressing mechanisms 21 and trays 4 to improve processing efficiency. Specifically, the feeding mechanism 1 supplies battery cells 51 to the support 223, and the end pressing mechanism 22 completes the stacking. After the side pressing mechanism 21 completes the shaping to form battery modules 5, the modules are transferred to the transfer area 202. The unloading gripper 31 set on the gantry 3 unloads the battery modules 5 from the two trays 4. The feeding mechanism 1 includes, but is not limited to, a robotic arm.

[0052] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A battery cell stacking and transfer device, characterized in that, include: The rack has a stacking area and a transfer area spaced apart along a first direction; A tray is disposed on the frame and is capable of reciprocating between the stacking area and the transfer area; The side-pressing mechanism is located on the side of the frame and close to the stacking area; An end-pressing mechanism is disposed on the tray, including a fixed portion, a movable portion, and a supporting portion disposed on the tray. The supporting portion is located between the fixed portion and the movable portion, and the movable portion can move closer to or further away from the fixed portion. The movable part includes a movable plate, a movable pressure head, and a claw body. The movable pressure head and the claw body are disposed on the movable plate. The claw body is capable of moving relative to the movable pressure head in the length direction and the width direction of the battery module.

2. The cell stacking and transfer equipment according to claim 1, characterized in that, The movable pressure head includes a first pressure plate disposed on the movable plate. The first pressure plate has a first end pressure surface disposed on the side facing the fixed part. A first limiting component is disposed on the periphery of the first end pressure surface for limiting the first end plate of the battery module.

3. The cell stacking and transfer equipment according to claim 1, characterized in that, The claw body is provided with a first limiting surface and a second limiting surface that are perpendicular to each other. The length direction of the battery module is perpendicular to the first limiting surface, and the width direction of the battery module is perpendicular to the second limiting surface.

4. The cell stacking and transfer equipment according to claim 1, characterized in that, The movable plate is slidably connected to the tray, and a ball screw is rotatably mounted on the tray. The movable plate is drivenly connected to the ball screw. The axial direction of the ball screw is parallel to the length direction of the battery module.

5. The cell stacking and transfer equipment according to claim 2, characterized in that, A baffle is provided on the movable plate, and the first pressure plate is slidably disposed on the movable plate, with the first pressure plate located between the fixed part and the baffle. A pressure sensor is provided on the baffle, and the pressure sensor is located between the first pressure plate and the baffle.

6. The cell stacking and transfer equipment according to claim 2, characterized in that, There is an adjustable gap between the first pressure plate and the movable plate. A support plate is adjustablely provided in the adjustable gap. The support plate can move closer to or further away from the fixed part along the length direction of the battery module. The support plate can extend below the first end pressure surface to support the first end plate of the battery module.

7. The cell stacking and transfer equipment according to claim 1, characterized in that, The fixing part includes a main board fixedly installed on the tray and a sub-plate slidably installed on the tray, the sub-plate being located between the main board and the support part; The sub-plate is provided with a second end pressing surface on the side facing the support portion, which is used to assemble the second end plate of the battery module; The motherboard or the tray is provided with a driving component for driving the sub-board to move closer to or away from the support part along the length direction of the battery module; The main board is equipped with a self-locking component, which is used to limit the sub-board in the length direction of the battery module.

8. The cell stacking and transfer equipment according to claim 7, characterized in that, The self-locking component includes an adjusting plate and a locking plate connected to each other, wherein: The adjusting plate is adjustablely disposed on the main board, and the locking plate extends from the main board toward the sub-board. When the sub-board is in the locked state, the locking plate and the sub-board abut against each other in the length direction of the battery module. When the sub-board is in the unlocked state, the locking plate and the sub-board disengage from each other in the length direction of the battery module.

9. The cell stacking and transfer equipment according to claim 1, characterized in that, The side-pressing mechanism includes a main frame and a sub-frame, the sub-frame being slidably connected to the main frame, and a side-pressing plate being provided on the side of the sub-frame facing the stacking area; A stabilizing gear is rotatably mounted on the main frame, and a stabilizing rack that meshes with the stabilizing gear is provided on the sub-frame.

10. The cell stacking and transfer equipment according to claim 9, characterized in that, The subframe is provided with a longitudinal pressing assembly, which includes a translational plate slidably disposed on the subframe. The translational plate can move closer to or further away from the stacking area. A longitudinal plate is disposed at the end of the translational plate near the stacking area. The longitudinal plate can move longitudinally. A pressure roller for pressing the battery cell is disposed on the longitudinal plate.

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