Battery cell pairing equipment

Abstract

The utility model provides battery cell pairing equipment. The battery cell pairing equipment comprises a machine table; the battery cell pairing module is arranged on the machine table and comprises two battery cell pairing groups, and the two battery cell pairing groups are arranged in a mirror image mode and are sequentially arranged in the first direction; the posture adjusting module is arranged on the machine table and located on one side, in the second direction, of the battery cell pairing module, the posture adjusting module is arranged close to the ends, close to each other, of the two battery cell pairing sets, and the first direction is perpendicular to the second direction; the battery cell pairing group comprises a stacking and conveying mechanism and two battery cell pairing lines, the two battery cell pairing lines are arranged in a mirror image mode and are sequentially arranged in the second direction, and the stacking and conveying mechanism is located at the ends, in the first direction, of the two battery cell pairing lines and used for transferring qualified battery cells flowing out of the battery cell pairing lines towards the posture adjusting module. The battery pack is integrally in a T-shaped layout, comprises four battery cell pairing lines, is reasonable in layout, reduces the occupied area of a site, and improves the working efficiency at the same time.

Description

Technical Field

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

[0002] After the cells are installed in the casing, they form a single battery cell. In practice, to increase the capacity of a single battery cell, two cells with similar physical parameters are often paired and combined. The electrodes of the two paired cells are matched and connected before being installed in the casing. Existing cell pairing equipment has the drawbacks of occupying a large space and having low working efficiency. 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 matching device with a reasonable layout that reduces the space occupied while improving work efficiency.

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

[0005] A battery cell pairing device includes: a machine base; a battery cell pairing module disposed on the machine base, comprising two battery cell pairing groups arranged in a mirror image and sequentially arranged along a first direction; an attitude adjustment module disposed on the machine base, located on one side of the battery cell pairing module along a second direction, the attitude adjustment module being located near the ends of the two battery cell pairing groups that are close to each other, the first direction being perpendicular to the second direction; each battery cell pairing group includes a stacking conveying mechanism and two battery cell pairing lines arranged in a mirror image and sequentially arranged along the second direction, the stacking conveying mechanism being located at the ends of the two battery cell pairing lines in the first direction, used to transfer qualified battery cells flowing out of the battery cell pairing lines toward the attitude adjustment module; each battery cell pairing line includes a transfer component, and a weighing component, a thickness measuring component, and a tab detection component sequentially arranged along the transfer path of the transfer component.

[0006] According to a preferred embodiment, the weighing assembly includes a base disposed on the machine platform, an electronic scale and a first guide frame disposed on the base, a support plate disposed above the electronic scale, and a first guide rod extending longitudinally disposed on the support plate, the first guide rod being slidably connected to the first guide frame; the support plate is used to support the battery cell, an adapter block is disposed on the electronic scale, and a weighing hole corresponding to the adapter block is formed on the support plate; the support plate is capable of moving longitudinally so that the battery cell abuts against or detaches from the adapter block; the first direction, the second direction, and the longitudinal direction are perpendicular to each other.

[0007] According to a preferred embodiment, the thickness measuring component includes a first base plate and a first top plate, with a turntable disposed between the first base plate and the first top plate. The turntable is rotatably mounted on the first base plate, and the first base plate is mounted on the machine base. A first pressure plate is longitudinally adjustable on the side of the first top plate near the turntable. At least one carrier plate corresponding to the first pressure plate is disposed on the turntable for assembling battery cells. The carrier plate is longitudinally floating on the turntable. A displacement sensor is disposed on the first top plate, and a distance measuring block adapted to the displacement sensor is disposed on the first pressure plate. A reference plate corresponding to the first pressure plate is disposed on the first base plate, and the reference plate is located between the first base plate and the turntable. When the thickness measuring component is in the measuring state, the carrier plate abuts against the reference plate; when the thickness measuring component is in the normal state, the carrier plate detaches from the reference plate.

[0008] According to a preferred embodiment, the carrier plate includes an upper carrier plate and a lower carrier plate, the turntable is located between the upper carrier plate and the lower carrier plate, and the lower carrier plate is located between the turntable and the reference plate; a second guide rod is disposed on the upper carrier plate, the second guide rod passes through the turntable and is slidably connected to it, and a reset member is disposed between the upper carrier plate or the lower carrier plate and the turntable, so that the lower carrier plate always has a tendency to move away from the reference plate, and when the thickness measuring component is in the normal state, the carrier plate can move away from the reference plate longitudinally.

[0009] According to a preferred embodiment, the first top plate and the first bottom plate are connected by a longitudinal plate; a third guide rod is disposed on the first pressure plate, the third guide rod extends longitudinally, the third guide rod passes through the first top plate and is slidably connected to it, and a first driving member is disposed on the first top plate, the first driving member being used to drive the first pressure plate to move longitudinally closer to or away from the turntable.

[0010] According to a preferred embodiment, the tab detection assembly includes a second base plate movably disposed on the machine tool, the second base plate being configured with a detection fixture for carrying the battery cell; the tab detection assembly also includes a light source and a detection unit disposed on the machine tool, the second base plate being capable of driving the detection fixture into or out of the detection area of ​​the detection unit.

[0011] According to a preferred embodiment, the testing fixture includes a third base plate fixedly mounted on the second base plate. A support plate is fixedly mounted on the third base plate via an adapter frame for supporting the battery cell. The support plate has first movable limiting members on both sides along the first direction, the first movable limiting members being adjustablely mounted on the third base plate. A second movable limiting member is adjustablely mounted on the third base plate, the second movable limiting member being located on one side of the support plate in the second direction. A fixed limiting member is disposed on the support plate, the fixed limiting member being opposite to the second movable limiting member. The first movable limiting member and the second movable limiting member move synchronously.

[0012] According to a preferred embodiment, both the first movable limiting member and the second movable limiting member are slidably mounted on the third base plate. A driving plate is slidably mounted on the third base plate, and a driving groove is provided on the driving plate. The first movable limiting member is slidably embedded in the driving groove. The driving plate is capable of moving along the second direction so that the first movable limiting member moves along the first direction. The second movable limiting member is fixedly connected to the driving plate.

[0013] According to a preferred embodiment, the stacking conveying mechanism includes a first support beam disposed on the machine platform, the first support beam extending along the second direction; two transfer brackets corresponding one-to-one with the pairing lines of the two battery cells are disposed on the first support beam, the transfer brackets being movable along the second direction; the transfer brackets include lifting plates for carrying the battery cells, and the lifting plates of the two transfer brackets are staggered in the longitudinal direction.

[0014] According to a preferred embodiment, the lifting plate includes a lifting flat plate and a lifting upright plate connected to each other. The lifting upright plate extends longitudinally, and the lifting flat plate extends in a first direction and is located above the first support beam. The battery cell is placed on the lifting flat plate. An inner upright plate is slidably installed on the side of the lifting upright plate facing the first support beam. The inner upright plate is slidably installed on the first support beam.

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

[0016] This utility model has an overall T-shaped layout, including four battery cell pairing wires. The layout is reasonable, reducing the space occupied while improving work efficiency. 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 top view of the battery cell pairing device provided in this embodiment of the utility model;

[0019] Figure 2 A three-dimensional structural schematic diagram of the battery cell pairing device provided in the embodiments of this utility model;

[0020] Figure 3 A three-dimensional structural schematic diagram of the transfer component provided in an embodiment of this utility model;

[0021] Figure 4 A three-dimensional structural diagram of the gripping mechanism assembled on the support beam, as provided in an embodiment of this utility model;

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

[0023] Figure 6 A three-dimensional structural diagram of the weighing component provided in an embodiment of this utility model;

[0024] Figure 7 A three-dimensional structural diagram of the weighing component after removing the base and battery cell, provided in an embodiment of this utility model;

[0025] Figure 8 A three-dimensional structural schematic diagram of the thickness measuring component provided in an embodiment of this utility model;

[0026] Figure 9 A schematic diagram of the assembly structure of the turntable and the first base plate provided in an embodiment of this utility model;

[0027] Figure 10 for Figure 9 The front view of the structure shown;

[0028] Figure 11 A three-dimensional structural diagram of the electrode detection component provided in this embodiment of the utility model;

[0029] Figure 12 for Figure 11 A partially enlarged schematic diagram of the structure at point D;

[0030] Figure 13 An exploded view of the detection fixture provided in this embodiment of the utility model;

[0031] Figure 14 A schematic diagram of the assembly structure of the drive plate, the first extension plate and the third base plate provided in an embodiment of this utility model;

[0032] Figure 15 A three-dimensional structural schematic diagram of the stacking conveying mechanism provided in an embodiment of this utility model;

[0033] Figure 16 A three-dimensional structural diagram of the transfer bracket provided in an embodiment of this utility model;

[0034] Figure 17 A three-dimensional structural diagram of the first flipping mechanism provided in an embodiment of this utility model.

[0035] Icons: A. Cell pairing module; B. Attitude adjustment module; C. Machine tool; a. Cell pairing group; a1. Cell pairing line; a2. Stacking conveyor mechanism; a3. NG line; 1. Transfer assembly; 11. Support beam; 12. Gripping mechanism; 121. First linear module; 122. First mounting frame; 123. First gripping part; 1231. First finger cylinder; 1232. First adapter plate; 1233. Clamping plate; 1234. Floating plate; 1235 1. Claw body; 1235. First cylinder; 12351. Pressure block; 2. Weighing assembly; 21. Base; 22. Electronic scale; 221. Adapter block; 23. First guide frame; 231. Second cylinder; 24. Support plate; 241. First guide rod; 242. Weighing hole; 3. Thickness measuring assembly; 31. First base plate; 32. First top plate; 321. Displacement sensor; 322. First drive component; 33. Longitudinal plate; 34. Turntable; 341. Carrier plate 3411. Upper plate of the carrier; 3412. Second guide rod; 3413. Lower plate of the carrier; 35. First pressure plate; 351. Distance measuring block; 352. Third guide rod; 36. Reference plate; 37. Reset component; 4. Electrode detection assembly; 41. Second base plate; 42. Detection fixture; 421. Third base plate; 422. Adapter frame; 423. Support plate; 4231. Fixed limit component; 424. First moving limit component; 4241. First extension plate; 25. Second moving limit component; 4251, second extension plate; 426, drive plate; 4261, drive groove; 43, light source; 44, detection unit; 5, first flipping mechanism; 51, rotating support; 52, flipping gripper; 61, first support beam; 62, transfer bracket; 621, lifting plate; 6211, lifting flat plate; 6212, lifting upright plate; 622, inner upright plate; 7, second flipping mechanism; 8, unloading assembly; 81, second support beam; 82, unloading gripper part. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] Please refer to Figures 1 to 17 A battery cell pairing device includes a machine base C and a battery cell pairing module A and an attitude adjustment module B disposed on the machine base C. The battery cell pairing module A includes two battery cell pairing groups a, which are mirror images of each other and arranged sequentially along a first direction. The attitude adjustment module B is located on one side of the battery cell pairing module A along a second direction, near the ends of the two battery cell pairing groups a that are close to each other. The first direction is perpendicular to the second direction. Each battery cell pairing group a includes a stacking conveyor mechanism a2 and two battery cell pairing lines a1, which are mirror images of each other and arranged sequentially along the second direction. The stacking conveyor mechanism a2 is located at the ends of the two battery cell pairing lines a1 in the first direction and is used to transfer qualified battery cells flowing from the battery cell pairing lines a1 toward the attitude adjustment module B. Each battery cell pairing line a1 includes a transfer component 1, and a weighing component 2, a thickness measuring component 3, and a tab detection component 4 arranged sequentially along the transfer path of the transfer component 1. Figure 1 and Figure 2 As shown, two cell pairing groups a are arranged along the first direction. Each cell pairing group a includes two cell pairing lines a1 arranged along the second direction. The stacking conveyor mechanism a2 is located at the ends of the two cell pairing groups a that are close to each other in the first direction. The cells complete the physical parameter detection of the cells through the cell pairing lines a1, including weight, thickness, and tab position. Further, based on the aforementioned physical parameters, two cells with similar or matching physical parameter values ​​are paired and stacked onto the stacking conveyor mechanism a2. The stacking conveyor mechanism a2 transfers the paired cells to the attitude adjustment module B for attitude adjustment before unloading. Figure 1As shown, the battery cell pairing equipment has an overall T-shaped layout, including four battery cell pairing lines a1. The layout is reasonable, reducing the space occupied while improving work efficiency.

[0040] like Figures 1 to 3 As shown, the transfer assembly 1 includes a support beam 11 extending along a first direction, and a gripping mechanism 12 is movably disposed on the support beam 11 for gripping battery cells. Further, as... Figure 4 and Figure 5 As shown, the gripping mechanism 12 includes a first linear module 121, a first mounting frame 122, and a first gripping part 123. The first linear module 121 is slidably mounted on the support beam 11 via a slide rail slider assembly. The first mounting frame 122 is assembled to the first linear module 121 and is driven by the first linear module 121 to move longitudinally. The first gripping part 123 is mounted on the first mounting frame 122. In this embodiment, two first gripping parts 123 are assembled on the first mounting frame 122 to grip two battery cells simultaneously, thereby improving processing efficiency.

[0041] Furthermore, such as Figure 5 As shown, the first gripping part 123 includes a first finger cylinder 1231 mounted on a first mounting bracket 122. Two first adapter plates 1232 are mounted on the first finger cylinder 1231, and the two adapter plates 1232 are driven by the first finger cylinder 1231 to move closer to or further away from each other. A clamping plate 1233 extending longitudinally is mounted on the first adapter plate 1232. A pressure block 12351 is disposed on the inner side of the clamping plate 1233, and a floating plate 1234 is disposed on the outer side of the clamping plate 1233. A claw body 12341 for gripping the battery cell is mounted on the first floating plate. In this embodiment, a first cylinder 1235 is fixedly mounted on the clamping plate 1233. The first cylinder 1235 drives the pressure block 12351 to move longitudinally, cooperating with the claw body 12341 to grip or release the battery cell. The floating plate 1234 is slidably connected to the clamping plate 1233 longitudinally via a slide rail slider assembly. A first buffer spring is disposed between the floating plate 1234 and the clamping plate 1233. The first buffer spring acts on the floating plate 1234, causing it to have a tendency to move downward longitudinally, so that when the claw body 12341 abuts against the battery cell in a downward longitudinal direction, the two make flexible contact. In this embodiment, the first direction, the second direction, and the longitudinal direction are perpendicular to each other.

[0042] In this embodiment, in order to improve work efficiency, five gripping mechanisms 12 are configured. The three gripping mechanisms 12 in the middle correspond to the weighing component 2, the thickness measuring component 3 and the tab detection component 4, and are used to transfer the battery cell between the three. The first gripping mechanism 12 is used to load the battery cell onto the weighing component 2, and the last gripping mechanism 12 is used to unload the battery cell from the tab detection component 4.

[0043] like Figure 6 and Figure 7As shown, in this embodiment, the weighing assembly 2 includes a base 21 disposed on the machine tool C. An electronic scale 22 and a first guide frame 23 are mounted on the base 21. A support plate 24 is disposed above the electronic scale 22, and a first guide rod 241 extending longitudinally is disposed on the support plate 24. The first guide rod 241 is slidably connected to the first guide frame 23. The support plate 24 is used to support the battery cell. An adapter block 221 is disposed on the electronic scale 22. A weighing hole 242 corresponding to the adapter block 221 is opened on the support plate 24. The support plate 24 can move longitudinally so that the battery cell abuts against or detaches from the adapter block 221. Specifically, a second cylinder 231 is mounted on the first guide frame 23, and the second cylinder 231 is used to drive the support plate 24 to move longitudinally. In use, after the gripping mechanism 12 places the battery cell on the support plate 24, the second cylinder 231 drives the support plate 24 to move downward in the longitudinal direction. During the process, the battery cell on the support plate 24 gradually approaches the adapter block 221. As the support plate 24 continues to move downward, the battery cell is supported by the adapter block 221 and detaches from the support plate 24. That is, the entire weight of the battery cell is applied to the electronic scale 22 through the adapter block 221 to realize the weight detection of the battery cell. After the detection is completed, the second cylinder 231 drives the support plate 24 to move upward in the longitudinal direction to lift the battery cell off the adapter block 221.

[0044] like Figure 8 and Figure 9 As shown, the thickness measuring assembly 3 includes a first base plate 31 and a first top plate 32. A turntable 34 is disposed between the first base plate 31 and the first top plate 32. The turntable 34 is rotatably mounted on the first base plate 31, and the first base plate 31 is mounted on the machine base C. A first pressure plate 35 is longitudinally adjustable on the side of the first top plate 32 near the turntable 34. At least one carrier plate 341 corresponding to the first pressure plate 35 is disposed on the turntable 34 for assembling battery cells. The carrier plate 341 is floatingly mounted longitudinally. On the turntable 34, a displacement sensor 321 is provided on the first top plate 32, and a distance measuring block 351 adapted to the displacement sensor 321 is provided on the first pressure plate 35; a reference plate 36 corresponding to the first pressure plate 35 is provided on the first bottom plate 31, and the reference plate 36 is located between the first bottom plate 31 and the turntable 34; when the thickness measuring component 3 is in the measuring state, the carrier plate 341 abuts against the reference plate 36, and when the thickness measuring component 3 is in the normal state, the carrier plate 341 is disengaged from the reference plate 36.

[0045] In this embodiment, the first top plate 32 and the first bottom plate 31 are connected by a longitudinal plate 33. A first driving member 322 is disposed on the first top plate 32, which is used to drive the first pressure plate 35 to move closer to or away from the turntable 34 longitudinally. Preferably, the first driving member 322 is a cylinder. The rotation axis of the turntable 34 is parallel to the longitudinal direction. In use, the gripping mechanism 12 places the battery cell on the carrier plate 341, and the turntable 34 rotates so that the carrier plate 341 is between the first pressure plate 35 and the reference plate 36. The first driving member 322 drives the first pressure plate 35 to move downward to press the battery cell downward. At this time, the downward pressure of the first pressure plate 35 is transmitted to the carrier plate 341 through the battery cell until the carrier plate 341 abuts against the reference plate 36 and stops moving. As the first pressure plate 35 continues to press down until a predetermined pressure value is reached, the battery cell is compressed, and the thickness of the battery cell in this state is the measured value. The thickness value of the battery cell at this time is detected by the displacement sensor 321 in conjunction with the ranging block 351. Figure 8 As shown, the carrier plates 341 set on the turntable 34 can all pass through the area between the first pressure plate 35 and the reference plate 36 when the turntable 34 rotates. While the battery cells assembled on this part of the carrier plates 341 are being measured, other carrier plates 341 can be loaded with battery cells to be measured, so that the thickness measuring component 3 can continuously measure the thickness of the battery cells, thus improving work efficiency.

[0046] In this embodiment, the turntable 34 is driven by a rotary table or a DD motor.

[0047] like Figure 8 and Figure 10 As shown, the carrier plate 341 includes an upper carrier plate 3411 and a lower carrier plate 3413. A turntable 34 is located between the upper carrier plate 3411 and the lower carrier plate 3413, and the lower carrier plate 3413 is located between the turntable 34 and the reference plate 36. A second guide rod 3412 is disposed on the upper carrier plate 3411, passing through the turntable 34 and slidably connected thereto. The upper carrier plate 3411 and the lower carrier plate 3413 are connected by the second guide rod 3412. A reset member 37 is disposed between the upper carrier plate 3411 or the lower carrier plate 3413 and the turntable 34, so that the lower carrier plate 3413 always has a tendency to move away from the reference plate 36, and when the thickness measuring component 3 is in its normal state, the carrier plate 341 can move longitudinally away from the reference plate 36. In this embodiment, the reset member 37 is a spring. Preferably, the reset member 37 is disposed between the upper plate 3411 of the carrier and the turntable 34. The reset member 37 acts on the upper plate 3411 of the carrier, causing it to be compressed longitudinally upward to support the upper plate 3411 of the carrier, so that the lower plate 3413 of the carrier remains as follows. Figure 10The state shown, where the reference plate 36 is detached, does not affect the rotation of the turntable 34. When the first pressure plate 35 acts on the upper plate 3411 of the carrier, the upper plate 3411 of the carrier moves down to compress the reset member 37, so that the lower plate 3413 of the carrier can abut against the reference plate 36, so that the upper plate 3411 of the carrier is fixed in the longitudinal position to cooperate with the first pressure plate 35 to press the battery cell.

[0048] In this embodiment, as Figure 8 As shown, a third guide rod 352 is disposed on the first pressure plate 35. The third guide rod 352 extends longitudinally, passes through the first top plate 32, and is slidably connected to it. The third guide rod 352 is used to maintain the stability of the first pressure plate 35 in longitudinal movement.

[0049] like Figure 11 and Figure 12 As shown, the tab detection assembly 4 includes a second base plate 41 movably disposed on the machine tool C, on which a detection fixture 42 for supporting the battery cell is disposed; the tab detection assembly 4 also includes a light source 43 and a detection unit 44 disposed on the machine tool C, and the second base plate 41 can drive the detection fixture 42 to enter or leave the detection area of ​​the detection unit 44. In this embodiment, as Figure 11 As shown, a linear module is configured on the machine base C. The second base plate 41 is mounted on the linear module and driven by it to move in the second direction, facilitating the loading and unloading of battery cells with the gripping mechanism 12. The detection unit 44 is preferably a CCD camera, used for photographing and inspecting the tabs of the battery cells.

[0050] In this embodiment, the testing fixture 42 includes a third base plate 421 fixedly mounted on a second base plate 41. A support plate 423 is fixedly mounted on the third base plate 421 via an adapter frame 422 to support the battery cell. First movable limiting members 424 are provided on both sides of the support plate 423 along a first direction. The first movable limiting members 424 are adjustablely mounted on the third base plate 421. A second movable limiting member 25 is adjustablely mounted on the third base plate 421, located on one side of the support plate 423 in the second direction. A fixed limiting member 4231 is disposed on the support plate 423, and the fixed limiting member 4231 is positioned opposite to the second movable limiting member 25. The first movable limiting member 424 and the second movable limiting member 25 move synchronously. In use, the battery cell is placed on the support plate 423, and the battery cell is positioned and limited within the area jointly defined by the first movable limiting member 424, the second movable limiting member 25, and the fixed limiting member 4231. The first moving limit member 424 and the second moving limit member 25 move synchronously to improve the cell clamping efficiency.

[0051] like Figure 13 and Figure 14As shown, the first movable limiting member 424 and the second movable limiting member 25 are both slidably mounted on the third base plate 421 via a slide rail slider assembly. A drive plate 426 is slidably mounted on the third base plate 421 via the slide rail slider assembly. A drive groove 4261 is provided on the drive plate 426. The first movable limiting member 424 is slidably embedded in the drive groove 4261. The drive plate 426 can move in the second direction so that the first movable limiting member 424 moves in the first direction. The second movable limiting member 25 is fixedly connected to the drive plate 426. In this embodiment, the first movable limiting member 424 is slidably mounted on the third base plate 421 via the first extension plate 4241, and the second movable limiting member 25 is fixedly mounted on the drive plate 426 via the second extension plate 4251. The drive groove 4261 is an inclined groove. The drive plate 426 is driven to move along the second direction by a cylinder set on the third base plate 421, thereby realizing the synchronous movement of the first movable limiting member 424 and the second movable limiting member 25, so that the first movable limiting member 424 and the second movable limiting member 25 can synchronously approach or synchronously move away from the battery cell on the support plate 423.

[0052] Cells that pass the tests at the weighing assembly 2, thickness measuring assembly 3, and tab detection assembly 4 enter the pairing process, while unqualified cells enter the NG process.

[0053] like Figure 1 , Figure 15 and Figure 16 As shown, the stacking conveyor mechanism a2 includes a first support beam 61 disposed on the machine base C, and the first support beam 61 extends along the second direction;

[0054] The first beam 61 is equipped with two transfer brackets 62 that correspond one-to-one with the two battery cell pairing lines a1. The transfer brackets 62 can move along the second direction.

[0055] The transfer bracket 62 includes a lifting plate 621 for carrying the battery cells, and the lifting plates 621 of the two transfer brackets 62 are staggered in the longitudinal direction. The lifting plate 621 includes a lifting flat plate 6211 and a lifting upright plate 6212 connected to each other. The lifting upright plate 6212 extends longitudinally, and the lifting flat plate 6211 extends in a first direction and is located above the first support beam 61. The battery cells are placed on the lifting flat plate 6211. Further, an inner upright plate 622 is slidably mounted on the side of the lifting upright plate 6212 facing the first support beam 61 via a slide rail slider assembly. The inner upright plate 622 is slidably mounted on the first support beam 61 via the slide rail slider assembly. A cylinder is provided on the inner upright plate 622 for driving the lifting plate 621 to move longitudinally. In this embodiment, the lifting plates 621 of the two transfer brackets 62 are staggered in the longitudinal direction. Specifically, the two lifting plates 6211 are staggered in the longitudinal direction so that they can move without interference with each other on the first support beam 61 along the second direction, so that the qualified cells flowing out of the two cell pairing lines a1 are efficiently transferred to the attitude adjustment module B after pairing.

[0056] like Figure 1 and Figure 17 As shown, the cell pairing group a also includes a first flipping mechanism 5, which is located at the downstream end of one of the cell pairing lines a1 and is used to flip the cell. The first flipping mechanism 5 includes a rotating support 51 disposed on the machine base C, and a flipping gripper 52 is rotatably mounted on the rotating support 51 for clamping the cell. The cell has a positive electrode tab and a negative electrode tab. The tabs of two stacked cells need to be matched and connected. The first flipping mechanism 5 flips the cell so that the tabs of the two stacked cells are matched.

[0057] like Figure 1 and Figure 2 As shown, the cell pairing device also includes a feeding component 8. The feeding component 8 uses cell grippers to transfer the stacked cells from the stacking conveyor a2 to the attitude adjustment module B for flipping and adjustment, and then feeds them out through the feeding component 8. The attitude adjustment module B includes a second flipping mechanism 7, which has the same structure as the first flipping mechanism 5, and will not be described in detail here.

[0058] The unloading assembly 8 includes a second support beam 81 mounted on the machine base C. The second support beam 81 extends along a second direction, and an unloading gripper portion 82 is mounted on the second support beam 81. The unloading gripper portion 82 is slidably mounted on the second support beam 81 along the second direction via a slide rail slider. Optionally, the unloading gripper portion 82 has the same structure as the gripping mechanism 12, which will not be described in detail here.

[0059] like Figure 1 As shown, the cell matching equipment also includes NG line a3, which is used to transport unqualified cells. NG line a3 is a conveyor belt that uses a gripping mechanism 12 on the support beam 11 to transfer the outflowing unqualified cells.

[0060] 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 pairing device, characterized in that, include: Machine tool; A cell pairing module is provided on the machine tool and includes two cell pairing groups. The two cell pairing groups are arranged in a mirror image and are arranged sequentially along a first direction. An attitude adjustment module is disposed on the machine tool, located on one side of the cell pairing module along the second direction. The attitude adjustment module is disposed near the ends of the two cell pairing groups that are close to each other. The first direction is perpendicular to the second direction. The cell pairing group includes a stacking conveying mechanism and two cell pairing lines. The two cell pairing lines are arranged in a mirror image and are arranged sequentially along the second direction. The stacking conveying mechanism is located at the ends of the two cell pairing lines in the first direction and is used to transfer qualified cells flowing out of the cell pairing lines toward the attitude adjustment module. The cell pairing line includes a transfer assembly, and a weighing assembly, a thickness measuring assembly, and a tab detection assembly arranged sequentially along the transfer path of the transfer assembly.

2. The cell pairing device according to claim 1, characterized in that, The weighing assembly includes a base mounted on the machine platform, an electronic scale and a first guide frame mounted on the base, a support plate mounted above the electronic scale, and a first guide rod extending longitudinally mounted on the support plate, the first guide rod being slidably connected to the first guide frame; The support plate is used to support the battery cell. The electronic scale is equipped with an adapter block. The support plate has a weighing hole corresponding to the adapter block. The support plate can move longitudinally so that the battery cell abuts against or detaches from the adapter block. The first direction, the second direction, and the longitudinal direction are perpendicular to each other.

3. The cell pairing device according to claim 1, characterized in that, The thickness measuring component includes a first base plate and a first top plate, with a turntable disposed between the first base plate and the first top plate. The turntable is rotatably mounted on the first base plate, and the first base plate is mounted on the machine base. The first top plate is longitudinally adjustable with a first pressure plate on the side near the turntable. The turntable is equipped with at least one carrier plate corresponding to the first pressure plate for assembling battery cells. The carrier plate is longitudinally floating on the turntable. The first top plate is equipped with a displacement sensor, and the first pressure plate is equipped with a ranging block adapted to the displacement sensor. A reference plate corresponding to the first pressure plate is provided on the first base plate, and the reference plate is located between the first base plate and the turntable; When the thickness measuring component is in the measuring state, the carrier plate abuts against the reference plate; when the thickness measuring component is in the normal state, the carrier plate detaches from the reference plate.

4. The cell pairing device according to claim 3, characterized in that, The vehicle plate includes an upper vehicle plate and a lower vehicle plate, the turntable is located between the upper vehicle plate and the lower vehicle plate, and the lower vehicle plate is located between the turntable and the reference plate; A second guide rod is disposed on the upper plate of the carrier. The second guide rod passes through the turntable and is slidably connected to it. A reset member is disposed between the upper plate or the lower plate of the carrier and the turntable so that the lower plate of the carrier always has a tendency to move away from the reference plate. When the thickness measuring component is in the normal state, the carrier plate can move away from the reference plate longitudinally.

5. The cell pairing device according to claim 3, characterized in that, The first top plate and the first bottom plate are connected by longitudinal plates; A third guide rod is disposed on the first pressure plate. The third guide rod extends longitudinally and passes through the first top plate and is slidably connected to it. A first driving member is disposed on the first top plate. The first driving member is used to drive the first pressure plate to move closer to or away from the turntable longitudinally.

6. The cell pairing device according to claim 1, characterized in that, The electrode detection assembly includes a second base plate movably disposed on the machine tool, and the second base plate is equipped with a detection fixture for carrying the battery cell; The tab detection assembly also includes a light source and a detection unit disposed on the machine tool, and the second base plate can drive the detection fixture to enter or leave the detection area of ​​the detection unit.

7. The cell pairing device according to claim 6, characterized in that, The testing fixture includes a third base plate fixedly mounted on the second base plate, and a support plate fixedly mounted on the third base plate via an adapter frame for supporting the battery cell; The support plate is provided with a first movable limiting member on both sides along the first direction. The first movable limiting member is adjustablely disposed on the third base plate. The third base plate is adjustablely disposed with a second movable limiting member. The second movable limiting member is located on one side of the support plate in the second direction. The support plate is provided with a fixed limiting member. The fixed limiting member is disposed opposite to the second movable limiting member. The first movable limit member and the second movable limit member move synchronously.

8. The cell pairing device according to claim 7, characterized in that, Both the first movable limiting member and the second movable limiting member are slidably mounted on the third base plate. A drive plate is slidably mounted on the third base plate. A drive groove is provided on the drive plate. The first movable limiting member is slidably embedded in the drive groove. The drive plate can move along the second direction so that the first movable limiting member moves along the first direction. The second moving limit member is fixedly connected to the drive plate.

9. The cell pairing device according to claim 1, characterized in that, The stacking conveyor mechanism includes a first support beam disposed on the machine platform, the first support beam extending along the second direction; The first support beam is equipped with two transfer brackets that correspond one-to-one with the two battery cell mating lines, and the transfer brackets are capable of moving along the second direction; The transfer bracket includes a support plate for supporting the battery cell, and the support plates of the two transfer brackets are staggered in the longitudinal direction.

10. The cell pairing device according to claim 9, characterized in that, The lifting plate includes a lifting flat plate and a lifting upright plate connected to each other. The lifting upright plate extends longitudinally, and the lifting flat plate extends in a first direction and is located above the first support beam. The battery cell is placed on the lifting flat plate. An inner vertical plate is slidably installed on the side of the supporting plate facing the first support beam, and the inner vertical plate is slidably installed on the first support beam.

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