Battery cell pairing equipment

Abstract

The invention 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 arranged in a T shape and comprises four battery cell pairing lines, the layout is reasonable, the occupied area of a site is reduced, and meanwhile, the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production equipment, and in particular to a battery cell pairing device. Background Art

[0002] After the battery cell is put into the shell, a single battery is formed. In practice, in order to increase the capacity of the single battery, two battery cells with similar physical parameters are often paired and combined, and the two paired battery cell tabs are matched and connected before being put into the shell. Existing battery cell pairing equipment has the disadvantages of occupying a large space and low working efficiency. Summary of the invention

[0003] In view of the deficiencies of the prior art, an object of the present invention is to provide a battery cell pairing device, which has a reasonable layout, reduces the site occupied area and improves the work efficiency.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A battery cell pairing device comprises: a machine platform; a battery cell pairing module, which is arranged on the machine platform and comprises two battery cell pairing groups, the two battery cell pairing groups are arranged in mirror images, and the two are arranged in sequence along a first direction; a posture adjustment module, which is arranged on the machine platform and is located on one side of the battery cell pairing module along a second direction, the posture adjustment module is arranged close to the ends of the two battery cell pairing groups that are close to each other, and the first direction is perpendicular to the second direction; the battery cell pairing group comprises a stacking conveying mechanism and two battery cell pairing lines, the two battery cell pairing lines are arranged in mirror images, and the two are arranged in sequence along the second direction, the stacking conveying mechanism is located at the ends of the two battery cell pairing lines in the first direction, and is used to transfer qualified batteries flowing out of the battery cell pairing lines toward the posture adjustment module; the battery cell pairing line comprises a transfer component, and a weighing component, a thickness measuring component and a tab detection component which are arranged in sequence along the transfer path of the transfer component.

[0006] According to a preferred embodiment, the weighing assembly includes a base arranged on the machine, an electronic scale and a first guide frame are arranged on the base, a supporting plate is arranged above the electronic scale, a first guide rod extending in the longitudinal direction is arranged on the supporting plate, and the first guide rod is slidably connected to the first guide frame; the supporting plate is used to support the battery cell, an adapter block is arranged on the electronic scale, a weighing hole corresponding to the adapter block is opened on the supporting plate, and the supporting plate can move in the longitudinal direction so that the battery cell abuts against or separates 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 assembly includes a first bottom plate and a first top plate, a turntable is arranged between the first bottom plate and the first top plate, the turntable is rotatably mounted on the first bottom plate, and the first bottom plate is mounted on the machine platform; a first pressure plate is adjustably arranged on a side of the first top plate close to the turntable along the longitudinal direction, at least one carrier plate corresponding to the first pressure plate is arranged on the turntable for assembling battery cells, the carrier plate is floatingly mounted on the turntable along the longitudinal direction, a displacement sensor is arranged on the first top plate, and a distance measuring block adapted to the displacement sensor is arranged on the first pressure plate; a reference plate corresponding to the first pressure plate is arranged on the first bottom plate, and the reference plate is located between the first bottom plate and the turntable; when the thickness measuring assembly is in a measuring state, the carrier plate abuts against the reference plate, and when the thickness measuring assembly is in a normal state, the carrier plate is detached 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 arranged on the upper carrier plate, the second guide rod passes through the turntable and is slidably connected thereto, and a reset member is arranged between the upper carrier plate or the lower carrier plate and the turntable, so that the lower carrier plate always has a movement tendency to separate from the reference plate, and when the thickness measuring assembly is in the normal state, the carrier plate can separate from the reference plate in the longitudinal direction.

[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 arranged 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 thereto, and a first driving member is arranged on the first top plate, the first driving member is used to drive the first pressure plate to approach or move away from the turntable longitudinally.

[0010] According to a preferred embodiment, the tab detection assembly includes a second base plate movably arranged on the machine, and a detection fixture for carrying the battery cell is configured on the second base plate; the tab detection assembly also includes a light source and a detection unit arranged on the machine, and the second base plate can drive the detection fixture to enter or leave the detection area of ​​the detection unit.

[0011] According to a preferred embodiment, the detection fixture includes a third base plate fixedly mounted on the second base plate, a support plate fixedly mounted on the third base plate through an adapter frame for carrying the battery cell; first moving limit members are arranged on both sides of the support plate along the first direction, the first moving limit member is adjustably arranged on the third base plate, a second moving limit member is adjustably arranged on the third base plate, the second moving limit member is located on one side of the support plate in the second direction, a fixed limit member is arranged on the support plate, the fixed limit member and the second moving limit member are arranged opposite to each other; the first moving limit member and the second moving limit member move synchronously.

[0012] According to a preferred embodiment, the first moving limit member and the second moving limit member are both slidably mounted on the third base plate, a driving plate is slidably mounted on the third base plate, a driving groove is configured on the driving plate, the first moving limit member is slidably embedded in the driving groove, the driving plate can move along the second direction so that the first moving limit member moves along the first direction; the second moving limit member is fixedly connected to the driving plate.

[0013] According to a preferred embodiment, the stacking conveying mechanism includes a first support beam arranged on the machine platform, and the first support beam is extended along the second direction; two transfer brackets corresponding to the two battery cell pairing lines are arranged on the first support beam, and the transfer brackets can move along the second direction; the transfer bracket includes a lifting plate 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 vertical plate connected to each other, the lifting vertical plate extends longitudinally, the lifting flat plate extends along a first direction and is located above the first support beam, and the battery cell is placed on the lifting flat plate; the lifting vertical plate is slidably installed with an inner vertical plate on one side of the lifting vertical plate facing the first support beam, and the inner vertical plate is slidably installed on the first support beam.

[0015] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0016] The present invention has a T-shaped layout as a whole, including four battery cell pairing lines, and has a reasonable layout, which reduces the site occupation area while improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a top view of a cell pairing device provided in an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of a cell pairing device provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of a transfer assembly provided in an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of a three-dimensional structure in which a grabbing mechanism provided by an embodiment of the present invention is assembled on a support beam;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of a first gripping portion provided in an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the three-dimensional structure of a weighing assembly provided in an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the three-dimensional structure of a weighing assembly provided in an embodiment of the present invention after the base and the battery core are removed;

[0025] Figure 8 A schematic diagram of the three-dimensional structure of a thickness measuring assembly provided in an embodiment of the present invention;

[0026] Fig. 9 A schematic diagram of the assembly structure of the turntable and the first base plate provided in an embodiment of the present invention;

[0027] Fig.10 for Fig. 9 a front view of the structure shown;

[0028] Fig.11 A schematic diagram of the three-dimensional structure of a tab detection assembly provided by an embodiment of the present invention;

[0029] Fig.12 for Fig.11 A partial enlarged schematic diagram of the structure at D in the middle;

[0030] Fig.13 A schematic diagram of the explosion structure of the detection fixture provided by an embodiment of the present invention;

[0031] Fig.14A schematic diagram of the assembly structure of the driving plate, the first extension plate and the third bottom plate provided in an embodiment of the present invention;

[0032] Fig.15 A schematic diagram of the three-dimensional structure of a stacking and conveying mechanism provided in an embodiment of the present invention;

[0033] Fig.16 A schematic diagram of the three-dimensional structure of a transfer bracket provided in an embodiment of the present invention;

[0034] Fig.17 A schematic diagram of the three-dimensional structure of a first flipping mechanism provided in an embodiment of the present invention.

[0035] Icons: A, cell pairing module; B, posture adjustment module; C, machine; a, cell pairing group; a1, cell pairing line; a2, stacking conveying mechanism; a3, NG line; 1, transfer assembly; 11, support beam; 12, grabbing mechanism; 121, first linear module; 122, first mounting frame; 123, first grabbing part; 1231, first finger cylinder; 1232, first adapter plate; 1233, clamping plate; 1234, floating plate; 1234 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. supporting plate; 241. first guide rod; 242. weighing hole; 3. thickness measuring assembly; 31. first bottom plate; 32. first top plate; 321. displacement sensor; 322. first driving member; 33. longitudinal plate; 34. turntable; 341. carrier plate ; 3411, carrier upper plate; 3412, second guide rod; 3413, carrier lower plate; 35, first pressure plate; 351, distance measuring block; 352, third guide rod; 36, reference plate; 37, reset member; 4, tab detection assembly; 41, second bottom plate; 42, detection fixture; 421, third bottom plate; 422, adapter; 423, support plate; 4231, fixed limit member; 424, first moving limit member; 4241, first extension plate; 25, The second movable limiter; 4251, the second extension plate; 426, the drive plate; 4261, the drive slot; 43, the light source; 44, the detection unit; 5, the first flipping mechanism; 51, the rotating support; 52, the flipping clamp; 61, the first support beam; 62, the transfer bracket; 621, the lifting plate; 6211, the lifting flat plate; 6212, the lifting vertical plate; 622, the inner vertical plate; 7, the second flipping mechanism; 8, the unloading assembly; 81, the second support beam; 82, the unloading clamp unit. DETAILED DESCRIPTION

[0036] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0039] Please refer to Figures 1 to 17 A cell pairing device includes a machine C and a cell pairing module A and a posture adjustment module B arranged on the machine C, wherein the cell pairing module A includes two cell pairing groups a, the two cell pairing groups a are arranged in mirror image, and the two are arranged in sequence along the first direction; the posture adjustment module B is located on one side of the cell pairing module A along the second direction, and the posture adjustment module B is arranged near the ends of the two cell pairing groups a that are close to each other, and the first direction is perpendicular to the second direction; the cell pairing group a includes a stacking conveying mechanism a2 and two cell pairing lines a1, the two cell pairing lines a1 are arranged in mirror image, and the two are arranged in sequence along the second direction, the stacking conveying mechanism a2 is located at the ends of the two cell pairing lines a1 in the first direction, and is used to transport qualified cells flowing out of the cell pairing lines a1 toward the posture adjustment module B; the cell pairing line a1 includes a transport component 1, and a weighing component 2, a thickness measuring component 3 and a tab detection component 4 that are arranged in sequence along the transport path of the transport component 1. Figure 1 and Figure 2 As shown, two battery cell pairing groups a are arranged along the first direction, and a single battery cell pairing group a includes two battery cell pairing lines a1 arranged along the second direction. The stacking conveying mechanism a2 is located at the ends of the two battery cell pairing groups a close to each other in the first direction. The battery cells complete the physical parameter detection of the battery cells through the battery cell pairing line a1, including weight, thickness and tab position. Further, according to the aforementioned physical parameters, two battery cells with similar or matching physical parameter values ​​are paired and stacked to the stacking conveying mechanism a2. The stacking conveying mechanism a2 transfers the paired battery cells to the posture adjustment module B for posture adjustment and then unloading. Figure 1 As shown, the battery cell pairing equipment is overall arranged in a T shape, including four battery cell pairing lines a1, which has a reasonable layout, reduces the site occupation area and improves work efficiency.

[0040] like Figures 1 to 3As shown, the transport assembly 1 includes a support beam 11 extending along a first direction, and a gripping mechanism 12 is movably provided on the support beam 11 for gripping the battery cell. Figure 4 and Figure 5 As shown, the grabbing mechanism 12 includes a first linear module 121, a first mounting frame 122 and a first grabbing portion 123. The first linear module 121 is slidably mounted on the support beam 11 through a slide rail slider assembly. The first mounting frame 122 is mounted on the first linear module 121 and driven by the first linear module 121 to move longitudinally. The first grabbing portion 123 is mounted on the first mounting frame 122. In this embodiment, two first grabbing portions 123 are mounted on the first mounting frame 122 to grab two battery cells at the same time, thereby improving processing efficiency.

[0041] Furthermore, if Figure 5 As shown, the first gripping part 123 includes a first finger cylinder 1231 mounted on the first mounting frame 122, and two first adapter plates 1232 are mounted on the first finger cylinder 1231. The two first adapter plates 1232 are driven by the first finger cylinder 1231 to move closer to or farther from each other; the first adapter plate 1232 is mounted with a clamping plate 1233 extending in the longitudinal direction, and a pressing block 12351 is arranged on the inner side of the clamping plate 1233, and a floating plate 1234 is arranged on the outer side of the clamping plate 1233, and a claw body 12341 for grabbing 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, and the first cylinder 1235 is used to drive the pressing block 12351 to move in the longitudinal direction to cooperate with the claw body 12341 to grab or release the battery cell. The floating plate 1234 is connected to the clamping plate 1233 by sliding along the longitudinal direction through the slide rail slider assembly. A first buffer spring is arranged between the floating plate 1234 and the clamping plate 1233. The first buffer spring acts on the floating plate 1234 to make it have a downward movement tendency along the longitudinal direction, so that the claw body 12341 is in flexible contact with the battery cell when it abuts against the battery cell along the longitudinal direction. 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 grasping mechanisms 12 are configured. The middle three grasping mechanisms 12 correspond to the weighing component 2, the thickness measuring component 3 and the tab detection component 4, and are used to transfer the battery cells between the three. The first grasping mechanism 12 is used to load the battery cells to the weighing component 2, and the last grasping mechanism 12 is used to unload the battery cells 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 arranged on the machine C, an electronic scale 22 and a first guide frame 23 are arranged on the base 21, a supporting plate 24 is arranged above the electronic scale 22, a first guide rod 241 extending in the longitudinal direction is arranged on the supporting plate 24, and the first guide rod 241 is slidably connected to the first guide frame 23; the supporting plate 24 is used to support the battery cell, an adapter block 221 is arranged on the electronic scale 22, a weighing hole 242 corresponding to the adapter block 221 is opened on the supporting plate 24, and the supporting plate 24 can move in the longitudinal direction so that the battery cell abuts against or detaches from the adapter block 221. Specifically, a second cylinder 231 is assembled on the first guide frame 23, and the second cylinder 231 is used to drive the supporting plate 24 to move in the longitudinal direction. When in use, after the grabbing mechanism 12 places the battery cell on the supporting plate 24, the second cylinder 231 drives the supporting plate 24 to move downward in the longitudinal direction. During the process, the battery cell on the supporting plate 24 gradually approaches the adapter block 221. As the supporting plate 24 continues to move downward, the battery cell is supported by the adapter block 221 and detaches from the supporting plate 24, that is, the entire weight of the battery cell acts on 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 supporting plate 24 to move upward in the longitudinal direction to lift the battery cell away from the adapter block 221.

[0044] like Figure 8 and Fig. 9 As shown, the thickness measuring assembly 3 includes a first bottom plate 31 and a first top plate 32, a turntable 34 is arranged between the first bottom plate 31 and the first top plate 32, the turntable 34 is rotatably mounted on the first bottom plate 31, and the first bottom plate 31 is mounted on the machine C; a first pressing plate 35 is adjustably arranged along the longitudinal direction on one side of the first top plate 32 close to the turntable 34, and at least one carrier plate 341 corresponding to the first pressing plate 35 is arranged on the turntable 34, which is used to assemble the battery cell, and the carrier plate 341 is floatingly mounted along the longitudinal direction On the turntable 34, a displacement sensor 321 is arranged on the first top plate 32, and a distance measuring block 351 adapted to the displacement sensor 321 is arranged on the first pressure plate 35; a reference plate 36 corresponding to the first pressure plate 35 is arranged 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 separated 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 arranged on the first top plate 32, and the first driving member 322 is used to drive the first pressing plate 35 to move closer to or away from the turntable 34 in the longitudinal direction. Preferably, the first driving member 322 is a cylinder. The rotation axis of the turntable 34 is parallel to the longitudinal direction. When 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 pressing plate 35 and the reference plate 36. The first driving member 322 drives the first pressing plate 35 to move downward to press the battery cell downward. At this time, the downward pressure of the first pressing 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 pressing 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 displacement sensor 321 cooperates with the distance measuring block 351 to realize the detection of the battery cell thickness value at this time. Figure 8 As shown, the carrier plates 341 arranged on the turntable 34 can 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 some of the carrier plates 341 are being measured, other carrier plates 341 can load the battery cells to be measured, so that the thickness measuring assembly 3 can continuously measure the thickness of the battery cells, thereby 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 Fig.10 As shown, the carrier plate 341 includes a carrier upper plate 3411 and a carrier lower plate 3413, the turntable 34 is located between the carrier upper plate 3411 and the carrier lower plate 3413, and the carrier lower plate 3413 is located between the turntable 34 and the reference plate 36; the carrier upper plate 3411 is provided with a second guide rod 3412, the second guide rod 3412 penetrates the turntable 34 and is slidably connected thereto, the carrier upper plate 3411 and the carrier lower plate 3413 are connected through the second guide rod 3412, and a reset member 37 is provided between the carrier upper plate 3411 or the carrier lower plate 3413 and the turntable 34, so that the carrier lower plate 3413 always has a movement tendency to separate from the reference plate 36, and when the thickness measuring assembly 3 is in a normal state, the carrier plate 341 can separate from the reference plate 36 in the longitudinal direction. In this embodiment, the reset member 37 is a spring. Preferably, the reset member 37 is disposed between the carrier upper plate 3411 and the turntable 34, and the reset member 37 acts on the carrier upper plate 3411 to compress it in the longitudinal direction upward to support the carrier upper plate 3411 so that the carrier lower plate 3413 remains as Fig.10The state of being detached from the reference plate 36 does not affect the rotation of the turntable 34; when the first pressure plate 35 acts on the carrier upper plate 3411, the carrier upper plate 3411 moves downward to compress the reset member 37 so that the carrier lower plate 3413 can abut against the reference plate 36, so that the carrier upper plate 3411 is fixed in the longitudinal position to cooperate with the first pressure plate 35 to press the battery cell.

[0048] In this embodiment, Figure 8 As shown, the first pressing plate 35 is provided with a third guide rod 352, which extends longitudinally and penetrates the first top plate 32 and is slidably connected thereto. The third guide rod 352 is used to maintain the stability of the first pressing plate 35 in longitudinal movement.

[0049] like Fig.11 and Fig.12 As shown, the tab detection assembly 4 includes a second bottom plate 41 movably arranged on the machine C, and a detection fixture 42 for carrying the battery cell is arranged on the second bottom plate 41; the tab detection assembly 4 also includes a light source 43 and a detection unit 44 arranged on the machine C, and the second bottom plate 41 can drive the detection fixture 42 to enter or leave the detection area of ​​the detection unit 44. In this embodiment, Fig.11 As shown, the machine C is equipped with a linear module, and the second base plate 41 is assembled on the linear module and driven by the linear module to move in the second direction, so as to facilitate the loading and unloading of materials (battery cells) by the gripping mechanism 12. The detection unit 44 is preferably a CCD camera, which is used to take pictures of the tabs of the battery cells.

[0050] In this embodiment, the detection fixture 42 includes a third bottom plate 421 fixedly mounted on the second bottom plate 41, and a support plate 423 is fixedly mounted on the third bottom plate 421 through an adapter frame 422 for carrying the battery cell; the support plate 423 is provided with a first moving stopper 424 on both sides along the first direction, and the first moving stopper 424 is adjustably arranged on the third bottom plate 421, and the third bottom plate 421 is adjustably provided with a second moving stopper 25, and the second moving stopper 25 is located on one side of the support plate 423 in the second direction, and a fixed stopper 4231 is arranged on the support plate 423, and the fixed stopper 4231 is arranged opposite to the second moving stopper 25; the first moving stopper 424 moves synchronously with the second moving stopper 25. When in use, the battery cell is placed on the support plate 423, and the battery cell is in the area defined by the first moving stopper 424, the second moving stopper 25 and the fixed stopper 4231 and is limited. The first movable stopper 424 and the second movable stopper 25 move synchronously to improve the battery cell clamping efficiency.

[0051] like Fig.13 and Fig.14As shown, the first movable limit member 424 and the second movable limit member 25 are both slidably installed on the third base plate 421 through the sliding rail slider assembly, and a driving plate 426 is slidably installed on the third base plate 421 through the sliding rail slider assembly. The driving plate 426 is provided with a driving groove 4261, and the first movable limit member 424 is slidably embedded in the driving groove 4261. The driving plate 426 can move along the second direction to make the first movable limit member 424 move along the first direction; the second movable limit member 25 is fixedly connected to the driving plate 426. In this embodiment, the first moving limit member 424 is slidably installed on the third base plate 421 through the first extension plate 4241, and the second moving limit member 25 is fixedly installed on the driving plate 426 through the second extension plate 4251. The driving groove 4261 is an inclined groove. The driving plate 426 is driven by a cylinder arranged on the third base plate 421 to move along the second direction, thereby realizing the synchronous movement of the first moving limit member 424 and the second moving limit member 25, so that the first moving limit member 424 and the second moving limit member 25 can synchronously approach or move away from the battery cell on the support plate 423.

[0052] The cells that pass the tests at the weighing component 2, the thickness measuring component 3 and the tab detection component 4 enter the pairing program, and the cells that fail the tests enter the NG program.

[0053] like Figure 1 , Fig.15 and Fig.16 As shown, the stacking conveying mechanism a2 includes a first support beam 61 disposed on the machine table C, and the first support beam 61 is extended along the second direction;

[0054] Two transfer brackets 62 corresponding to the two cell pairing lines a1 are disposed on the first support beam 61, and the transfer brackets 62 can move along the second direction;

[0055] The transport bracket 62 includes a lifting plate 621 for carrying the battery cells, and the lifting plates 621 of the two transport brackets 62 are staggered in the longitudinal direction. The lifting plate 621 includes a lifting flat plate 6211 and a lifting vertical plate 6212 connected to each other, the lifting vertical plate 6212 extends in the longitudinal direction, the lifting flat plate 6211 extends in the first direction and is above the first support beam 61, and the battery cells are placed on the lifting flat plate 6211. Furthermore, the lifting vertical plate 6212 is slidably mounted with an inner vertical plate 622 on one side of the lifting vertical plate 6212 facing the first support beam 61 through a slide rail slider assembly, and the inner vertical plate 622 is slidably mounted on the first support beam 61 through a slide rail slider assembly, and a cylinder is arranged on the inner vertical plate 622 for driving the lifting plate 621 to move in the longitudinal direction. In this embodiment, the lifting plates 621 of the two transfer brackets 62 are staggered in the longitudinal direction, specifically, the two lifting flat plates 6211 are staggered in the longitudinal direction, so that the two can move without interference with each other along the second direction on the first support beam 61, so that the qualified battery cells flowing out of the two battery cell pairing lines a1 can be paired and efficiently transferred to the posture adjustment module B.

[0056] like Figure 1 and Fig.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 table C, and a flipping clamp 52 is rotatably mounted on the rotating support 51, and the flipping clamp 52 is used to clamp the cell. The cell has a positive electrode tab and a negative electrode tab, and the tabs of the 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 match.

[0057] like Figure 1 and Figure 2 As shown, the battery cell pairing device further includes a blanking assembly 8, which transfers the battery cells stacked at the stacking conveying mechanism a2 to the posture adjustment module B through the battery cell clamps for flipping and adjustment, and then blanks the battery cells through the blanking assembly 8. The posture adjustment module B includes a second flipping mechanism 7, which has the same structure as the first flipping mechanism 5 and is not described in detail here.

[0058] The blanking assembly 8 includes a second support beam 81 disposed on the machine C, the second support beam 81 extends along the second direction, and a blanking clamping claw portion 82 is disposed on the second support beam 81, and the blanking clamping claw portion 82 is slidably disposed on the second support beam 81 along the second direction through a slide rail slider. Optionally, the blanking clamping claw 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 pairing device further includes an NG line a3 for conveying unqualified cells. The NG line a3 is a conveyor belt, and the unqualified cells are conveyed and transferred through the grabbing mechanism 12 on the support beam 11.

[0060] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A cell pairing device, characterized in that: include: Machine; A cell pairing module is arranged on the machine, and includes two cell pairing groups, the two cell pairing groups are arranged in a mirror image, and the two are arranged in sequence along a first direction; A posture adjustment module is arranged on the machine platform and is located on one side of the battery cell pairing module along the second direction. The posture adjustment module is arranged near the ends of the two battery cell pairing groups that are close to each other, and the first direction is perpendicular to the second direction. The battery cell pairing group includes a stacking conveying mechanism and two battery cell pairing lines, the two battery cell pairing lines are arranged in mirror image, and the two are arranged in sequence along the second direction, the stacking conveying mechanism is located at the ends of the two battery cell pairing lines in the first direction, and is used to transport qualified batteries flowing out of the battery cell pairing lines toward the posture adjustment module; The cell pairing line includes a transfer component, and a weighing component, a thickness measuring component and a tab detection component which are sequentially arranged along a transfer path of the transfer component.

2. The cell pairing device according to claim 1, characterized in that: The weighing assembly includes a base arranged on the machine platform, an electronic scale and a first guide frame are arranged on the base, a supporting plate is arranged above the electronic scale, a first guide rod extending in the longitudinal direction is arranged on the supporting plate, and the first guide rod is slidably connected to the first guide frame; The support plate is used to support the battery cell. The electronic scale is provided with a transfer block. The support plate is provided with weighing holes corresponding to the transfer block. The support plate can move longitudinally so that the battery cell abuts against or detaches from the transfer 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 assembly comprises a first bottom plate and a first top plate, a turntable is arranged between the first bottom plate and the first top plate, the turntable is rotatably mounted on the first bottom plate, and the first bottom plate is mounted on the machine platform; A first pressing plate is adjustably arranged on one side of the first top plate close to the turntable in the longitudinal direction, and at least one carrier plate corresponding to the first pressing plate is arranged on the turntable for assembling the battery cell, and the carrier plate is floatingly installed on the turntable in the longitudinal direction, a displacement sensor is arranged on the first top plate, and a distance measuring block adapted to the displacement sensor is arranged on the first pressing plate; A reference plate corresponding to the first pressing plate is arranged on the first bottom plate, and the reference plate is located between the first bottom plate and the rotating disk; When the thickness measuring assembly is in a measuring state, the carrier plate abuts against the reference plate, and when the thickness measuring assembly is in a normal state, the carrier plate is separated from the reference plate.

4. The cell pairing device according to claim 3, characterized in that: The carrier plate includes a carrier upper plate and a carrier lower plate, the turntable is located between the carrier upper plate and the carrier lower plate, and the carrier lower plate is located between the turntable and the reference plate; A second guide rod is arranged on the carrier upper plate, the second guide rod passes through the turntable and is slidably connected thereto, and a reset member is arranged between the carrier upper plate or the carrier lower plate and the turntable, so that the carrier lower plate always has a movement tendency to separate from the reference plate, and when the thickness measuring assembly is in the normal state, the carrier plate can separate from the reference plate in the longitudinal direction.

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

6. The cell pairing device according to claim 1, characterized in that: The tab detection assembly comprises a second bottom plate movably arranged on the machine platform, and a detection fixture for carrying the battery cell is arranged on the second bottom plate; The tab detection assembly further includes a light source and a detection unit disposed on the machine platform, and the second bottom plate can drive the detection fixture to enter or leave a detection area of ​​the detection unit.

7. The cell pairing device according to claim 6, characterized in that: The detection fixture comprises a third bottom plate fixedly mounted on the second bottom plate, and a support plate is fixedly mounted on the third bottom plate via an adapter frame for carrying the battery cell; The support plate is provided with first movable stoppers on both sides along the first direction, the first movable stoppers are adjustably provided on the third bottom plate, the third bottom plate is adjustably provided with a second movable stopper, the second movable stopper is located on one side of the support plate in the second direction, the support plate is provided with a fixed stopper, the fixed stopper is arranged opposite to the second movable stopper; The first movable stopper moves synchronously with the second movable stopper.

8. The cell pairing device according to claim 7, characterized in that: The first movable stopper and the second movable stopper are both slidably mounted on the third bottom plate, a driving plate is slidably mounted on the third bottom plate, a driving groove is arranged on the driving plate, the first movable stopper is slidably embedded in the driving groove, and the driving plate can move along the second direction to make the first movable stopper move along the first direction; The second movable stopper is fixedly connected to the driving plate.

9. The cell pairing device according to claim 1, characterized in that: The stacking conveying mechanism comprises a first support beam disposed on the machine platform, and the first support beam is extended along the second direction; The first support beam is provided with two transfer brackets corresponding to the two battery cell pairing lines one by one, and the transfer brackets can move along the second direction; The transport bracket includes a lifting plate for carrying the battery cells, and the lifting plates of the two transport brackets are staggered in the longitudinal direction.

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

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