Battery cell grabbing device and battery production equipment

Abstract

The present invention relates to the field of battery production technology, and discloses a battery cell grasping device and battery production equipment. Among them, the battery cell grasping device includes a base and a clamping jaw assembly, a suction cup, a first drive assembly and a second drive assembly arranged on the base. Specifically, the clamping jaw assembly includes two clamping jaws, and the two clamping jaws are distributed on opposite sides of the suction cup along a first direction. The first drive assembly is connected to the two clamping jaws, and is used to drive the two clamping jaws to be relatively close or relatively far away. The second drive assembly is connected to the suction cup, and is used to drive the suction cup away from the base in a second direction, or to drive the suction cup close to the base in a second direction. In the above-mentioned battery cell grasping device, the structures and grasping principles of the clamping jaw assembly and the suction cup are different, which can be applied to the transfer of different components, thereby enriching the functions of the battery cell grasping device, expanding the scope of application of the battery cell grasping device, while improving the integration of the battery cell grasping device and reducing the operation and maintenance costs.

Description

Technical Field

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

[0002] As an energy storage unit, lithium batteries can realize the mutual conversion of chemical energy and electrical energy. Lithium batteries are widely used in production and life. For example, in the field of new energy vehicles, a certain number of lithium batteries can be combined to form a battery pack to provide power for new energy vehicles.

[0003] The production process of lithium batteries is divided into three stages: front, middle and back. The purpose of the front process is to process the raw materials into pole pieces, the purpose of the middle process is to process the pole pieces into unactivated cells, and the purpose of the back process is to detect the package. In one prior art, the middle process includes the following steps: a robot grabs the cover plate in the cover plate loading area and places the cover plate on a carrier; after the cell is hot-pressed and coated with an insulating film, another robot grabs the cell and places it on the cover plate. In the above production steps, two robots are required to grab the cover plate or the cell respectively, resulting in more parts and higher operation and maintenance costs. Summary of the invention

[0004] The present invention provides a battery cell grasping device and battery production equipment, which are used to solve the problems existing in the prior art that a large number of manipulators are used in the battery production process and the operation and maintenance cost is high.

[0005] In a first aspect, the present invention provides a battery cell grabbing device. The battery cell grabbing device comprises a base and a clamping claw assembly, a suction cup, a first driving assembly and a second driving assembly arranged on the base; wherein:

[0006] The clamping jaw assembly comprises two clamping jaws, and the two clamping jaws are distributed on two opposite sides of the suction cup along the first direction;

[0007] The first driving assembly is connected to the two clamping jaws, and is used to drive the two clamping jaws to move relatively closer to each other along the first direction, or to drive the two clamping jaws to move relatively away from each other along the first direction;

[0008] The second driving assembly is connected to the suction cup, and is used to drive the suction cup away from the base along the second direction, or to drive the suction cup toward the base along the second direction;

[0009] The first direction and the second direction are perpendicular to each other.

[0010] The beneficial effects of the battery cell grabbing device provided by the embodiment of the present invention are as follows:

[0011] In the above-mentioned battery cell grabbing device, the structures and grabbing principles of the clamping assembly and the suction cup are different, and they can be used to grab different components. After the clamping assembly and the suction cup are integrated into the battery cell grabbing device, the battery cell grabbing device can complete the transfer of multiple components, thereby enriching the functions of the battery cell grabbing device, expanding the scope of application of the battery cell grabbing device, and reducing the number of components and reducing operation and maintenance costs.

[0012] In a second aspect, the present invention further provides a battery production device, which comprises a frame and the battery cell grabbing device described in the first aspect, wherein the battery cell grabbing device is slidably disposed on the frame.

[0013] The beneficial effects of the battery production equipment provided by the present invention are as follows:

[0014] During the process of producing batteries, the above-mentioned battery production equipment can use a battery cell grasping device to grasp battery cells, cover plates or other components. Among them, the battery cell grasping device includes a clamping claw assembly and a suction cup. The structures and grasping principles of the clamping claw assembly and the suction cup are different. By integrating the clamping claw assembly and the suction cup into one, the battery cell grasping device can complete the transfer of various components, thereby making the battery cell grasping device more powerful and having a wider range of applications. In addition, after the clamping claw assembly and the suction cup are integrated into one, the integration of the entire device is improved, the number of components is reduced, and the operation and maintenance costs are reduced. In addition, the clamping claw assembly and the suction cup can avoid each other in space during operation, and will not interfere with each other, and can be flexibly used in a variety of scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a battery cell grabbing device from a first perspective provided in an embodiment of the present application;

[0016] Figure 2 for Figure 1 A schematic structural diagram of the battery cell grabbing device from a second viewing angle is shown;

[0017] Figure 3 A schematic diagram of the structure of a suction cup provided in an embodiment of the present application;

[0018] Figure 4 Another structural schematic diagram of the suction cup provided in the embodiment of the present application;

[0019] Figure 5 A schematic diagram of a projection of the suction cup along the second direction provided in an embodiment of the present application;

[0020] Figure 6 A schematic diagram of a connection between a second drive assembly and a suction cup provided in an embodiment of the present application.

[0021] Reference numerals:

[0022] 10-base; 20-gripping jaw assembly;

[0023] 21-claw; 211-base;

[0024] 212- clamping portion; 2121- vertical portion;

[0025] 2122-bending part; 30-suction cup;

[0026] 301-first wall portion; 3011-first end;

[0027] 3012-second end; 302-avoidance space;

[0028] 31- first subsection; 32- second subsection;

[0029] 33-third sub-section; 40-first drive assembly;

[0030] 50-second driving assembly; 51-first driving module;

[0031] 52-second driving module; 60-guide plate;

[0032] 70-third drive assembly; 80-fourth drive assembly;

[0033] 90-Slide seat. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the example embodiments of the present application to clearly and completely describe the technical solutions in the example embodiments of the present application. The example embodiments described herein are only for illustrative purposes and are not intended to limit the scope of protection of the present application. Therefore, it should be understood that various modifications and changes can be made to the example embodiments without departing from the scope of protection of the present application.

[0035] In the description of the present application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more; the term "and / or" includes any and all combinations of one or more associated listed items. In particular, reference to "the / the" object or "an" object is also intended to indicate one of a possible plurality of such objects.

[0036] Unless otherwise specified or explained, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] Further, in the description of the present application, it should be understood that the directional words such as "upper", "lower", "inner", "outer" and the like described in the exemplary embodiments of the present application are described from the perspectives shown in the accompanying drawings and should not be understood as limitations on the exemplary embodiments of the present application. It should also be understood that in the context, when it is mentioned that an element or feature is connected to another element (one or more) "upper", "lower", "inner", "outer", it can not only be directly connected to the other (one or more) elements "upper", "lower", "inner", "outer", but also can be indirectly connected to the other (one or more) elements "upper", "lower", "inner", "outer" through an intermediate element.

[0038] Figure 1 This is a schematic diagram of the structure of the battery cell grabbing device provided in the embodiment of the present application from a first perspective. Figure 2 FIG. 1 is a schematic diagram of the structure of the battery cell grabbing device from a second viewing angle. Figure 1 and Figure 2 As shown, in one embodiment, the battery cell grabbing device includes a base 10 and a clamping claw assembly 20, a suction cup 30, a first drive assembly 40 and a second drive assembly 50 arranged on the base 10. Among them, the clamping claw assembly 20 can be used to clamp the cover plate or the battery cell, and the suction cup 30 can be used to adsorb the cover plate or the battery cell. Specifically, the clamping claw assembly 20 includes two clamping claws 21, and the two clamping claws 21 are distributed on opposite sides of the suction cup 30 along the first direction X. The first drive assembly 40 is connected to the above two clamping claws 21, and is used to drive the above two clamping claws 21 to be relatively close to each other along the first direction X, or to drive the above two clamping claws 21 to be relatively far away from each other along the first direction X. In the production process of the battery, when the clamping claw assembly 20 is needed to clamp the battery cell, the above two clamping claws 21 can be relatively close to each other along the first direction X under the drive of the first drive assembly 40, so as to clamp the battery cell. After the battery cell is transferred to the destination, the above two clamping claws 21 can also be relatively far away from each other along the first direction X under the drive of the first drive assembly 40, so as to release the battery cell.

[0039] The second drive assembly 50 is connected to the suction cup 30, and is used to drive the suction cup 30 away from the base 10 along the second direction Y, or to drive the suction cup 30 to approach the base 10 along the second direction Y. Among them, the second direction Y and the first direction X are perpendicular to each other. The surface of the suction cup 30 on the side away from the base 10 has a plurality of adsorption holes, and the base 10 is also provided with a vacuum generator, and the vacuum generator is connected to the plurality of adsorption holes. In the production process of the battery, when the suction cup 30 is needed to transfer the cover plate, the suction cup 30 can be driven by the second drive assembly 50 to move to the top of the cover plate and fit the cover plate. At this time, the vacuum generator can extract the air between the suction cup 30 and the cover plate, so that a negative pressure is formed between the suction cup 30 and the cover plate, and then the cover plate is adsorbed on the surface of the suction cup 30. After the cover plate is transferred to the destination, the vacuum generator inputs air between the suction cup 30 and the cover plate through the adsorption hole, destroys the negative pressure state between the suction cup 30 and the cover plate, and separates the suction cup 30 from the cover plate.

[0040] In the above-mentioned battery cell grabbing device, the structures and grabbing principles of the clamping claw assembly 20 and the suction cup 30 are different, and they can be used to grab different components, so that the battery cell grabbing device can complete the transfer of multiple components, thereby making the battery cell grabbing device more powerful and having a wider range of applications. In addition, after the clamping claw assembly 20 and the suction cup 30 are integrated into the battery cell grabbing device, the integration of the entire device is improved, the number of components is reduced, and the operation and maintenance costs are reduced.

[0041] In specific applications, the clamping jaw assembly 20 and the suction cup 30 can avoid each other in space and will not interfere with each other, and can be flexibly applied in various scenarios. In one application scenario, the clamping jaw assembly 20 and the suction cup 30 can be used separately. In this scenario, the battery production process includes the following steps:

[0042] In the first step, under the drive of the first driving assembly 40, the two clamping jaws 21 of the clamping jaw assembly 20 are relatively separated, so that there is a large space between the two clamping jaws 21, so that the suction cup 30 can pass through it;

[0043] In the second step, the suction cup 30 is driven by the second driving assembly 50 to move along the second direction Y and away from the base 10, and the suction cup 30 passes between the two clamping claws 21 during the movement; after the suction cup 30 moves into position, the suction cup 30 adsorbs the cover plate;

[0044] Step 3: Transfer the cover to the carrier;

[0045] Step 4: Under the drive of the second driving assembly 50, the suction cup 30 is moved close to the base 10 and passes through between the two clamping jaws 21 of the clamping jaw assembly 20 again, so as to prevent the suction cup 30 from interfering with the clamping jaw assembly 20 in clamping the battery cell; then, under the drive of the first driving assembly 40, the two clamping jaws 21 of the clamping jaw assembly 20 are moved relatively close to clamp the battery cell;

[0046] Step 5: Transfer the battery cells to the cover.

[0047] In another application scenario, the clamping jaw assembly 20 and the suction cup 30 can cooperate with each other and work together. In this scenario, the battery production process includes the following steps:

[0048] In the first step, the suction cup 30 is driven by the second driving assembly 50 to move along the second direction Y and approach the base 10, thereby providing space for the clamping jaw assembly 20 to clamp the cover plate, and preventing the suction cup 30 from interfering with the clamping jaw assembly 20 to clamp the cover plate;

[0049] In the second step, under the drive of the first driving assembly 40, the two clamping jaws 21 of the clamping jaw assembly 20 are relatively close to each other and clamp the cover plate;

[0050] The third step is to transfer the cover plate to the lamination station, and keep the clamping jaw assembly 20 in a state of clamping the cover plate; at this time, the suction cup 30 is located above the cover plate, and there is a height difference between the suction cup 30 and the cover plate, thereby forming a lamination space, and the two ends of the lamination space along the third direction Z are respectively connected to the outside; wherein the third direction Z and the first direction X are perpendicular to each other, and the third direction Z and the second direction Y are also perpendicular to each other;

[0051] The fourth step is to perform a lamination operation on the surface of the cover plate to form a battery cell;

[0052] In a fifth step, the suction cup 30 is driven by the second driving assembly 50 to move along the second direction Y and away from the base 10 until the suction cup 30 abuts against the surface of the battery cell.

[0053] In the sixth step, with the cooperation of the clamping jaw assembly 20 and the suction cup 30, the cover plate and the battery cell are transferred to the next station for subsequent processes.

[0054] In the above application scenario, during the lamination process, the clamping jaw assembly 20 maintains the state of clamping the cover plate; after the lamination is completed, the suction cup 30 is directly moved so that the suction cup 30 abuts against the surface of the battery cell and adsorbs the battery cell, without repeating the operation of clamping the cover plate. At this time, the cover plate is fixed by the clamping jaw assembly 20, and the battery cell is fixed by the suction cup 30. By transferring the battery cell grabbing device, the cover plate and the battery cell can be transferred to the next station. In this way, the process is reduced and the operation and maintenance costs are saved.

[0055] In another application scenario, when transferring the battery cell, the clamping jaw assembly 20 and the suction cup 30 can also cooperate with each other to complete the transfer of the battery cell. The battery cell transfer process specifically includes the following steps:

[0056] Step 1: Under the drive of the first driving assembly 40, the clamping claws 21 clamp the battery cell from both sides of the battery cell;

[0057] Step 2: Under the drive of the second driving assembly 50 , the suction cup 30 moves along the second direction Y and presses against the surface of the battery cell.

[0058] like Figure 1 As shown, the clamping jaw 21 includes a clamping portion 212, and the clamping portion 212 is a bent structure. After the clamping jaw 21 clamps the battery cell, it can lift the battery cell and bear the weight of the battery cell. At the same time, the suction cup 30 applies pressure to the battery cell at the top of the battery cell, thereby improving the stability of the battery cell and reducing the risk of misalignment between the pole pieces contained in the battery cell.

[0059] When the suction cup 30 is specifically arranged, the suction cup 30 has a variety of structural forms. For example, the suction cup 30 can be a circular, rectangular or special-shaped structure. Figure 3 A schematic diagram of the structure of the suction cup provided in the embodiment of the present application is shown as follows: Figure 3 As shown, in one embodiment, the suction cup 30 has at least one first wall portion 301 on two opposite sides along the first direction X, the first wall portion 301 is a part of the side wall, and the first wall portion 301 is a curved side wall, and the first wall portion 301 is recessed toward the inside of the suction cup 30, thereby enclosing an escape space 302. It should be noted that the above-mentioned "curved side wall" can specifically be an arc-shaped side wall, or a bent side wall.

[0060] For reference Figure 2 and Figure 3 In one application scenario, when the suction cup 30 moves under the drive of the second driving assembly 50, the suction cup 30 and the clamping jaw 21 will generate relative displacement along the second direction Y. At this time, the clamping jaw 21 can pass through the avoidance space 302 to avoid the suction cup 30, without moving the two clamping jaws 21 relatively away from each other along the first direction X to achieve the above purpose. In this way, the process is reduced and the operation and maintenance cost is saved.

[0061] When the first wall portion 301 is specifically set, Figure 3 As shown, in one embodiment, a first wall portion 301 is provided on two opposite sides of the suction cup 30 along the first direction X, and the first wall portion 301 encloses a avoidance space 302. Figure 1 As shown, in the case where the clamping jaw 21 includes a plurality of clamping portions 212 , when the suction cup 30 and the clamping jaw 21 are to generate relative displacement along the second direction Y, the avoidance space 302 may allow the plurality of clamping portions 212 to pass through.

[0062] Please continue to refer to Figure 3In a specific embodiment, the suction cup 30 includes a first sub-portion 31 and a second sub-portion 32 that are arranged opposite to each other, and the suction cup 30 also includes a third sub-portion 33 located between the first sub-portion 31 and the second sub-portion 32. The size of the first sub-portion 31 along the first direction X is greater than the size of the third sub-portion 33 along the first direction X, and the size of the second sub-portion 32 along the first direction X is also greater than the size of the third sub-portion 33 along the first direction X. The first sub-portion 31 has a first sub-side wall, the second sub-portion 32 has a second sub-side wall, and the third sub-portion 33 has a third sub-side wall. The first sub-side wall and the third sub-side wall are vertically connected, and the third sub-side wall and the second sub-side wall are vertically connected. The first sub-side wall, the third sub-side wall and the second sub-side wall are connected in sequence to form a first wall portion 301 that is bent as a whole. From the appearance, the above suction cup 30 is I-shaped.

[0063] Figure 4 Another structural schematic diagram of the suction cup provided in the embodiment of the present application is as follows: Figure 4 As shown, in one embodiment, a plurality of first wall portions 301 are respectively disposed on two opposite sides of the suction cup 30 along the first direction X, and each first wall portion 301 encloses a avoidance space 302. Figure 1 As shown, when the clamping jaw 21 includes a plurality of clamping portions 212, the avoidance spaces 302 correspond to the clamping portions 212. When the suction cup 30 and the clamping jaw 21 are to be relatively displaced along the second direction Y, the avoidance spaces 302 can allow the corresponding clamping portions 212 to pass through.

[0064] Figure 5 A schematic diagram of a projection of the suction cup along the second direction Y provided in an embodiment of the present application, such as Figure 5 As shown, in one embodiment, the area of ​​the positive projection of the suction cup 30 along the second direction Y is The total number of first wall portions 301 is n, and The orthographic projection of the first wall portion 301 along the second direction Y has a first end 3011 and a second end 3012, and the area enclosed by the line between the first end 3011 and the second end 3012 and the orthographic projection of the first wall portion 301 along the second direction Y is .exist When the sum of is certain, The larger the value, the larger the area occupied by the avoidance space 302, and the smaller the risk of interference between the suction cup 30 and the clamp 21 in space. As the area occupied by the avoidance space 302 increases, the area occupied by the suction cup 30 will gradually decrease. When the area occupied by the suction cup 30 is small, the suction force of the suction cup 30 is weak, and the battery cell is easily misaligned with respect to the suction cup 30. On the contrary, The smaller the value is, the larger the area occupied by the suction cup 30 is, and the stronger the adsorption force of the suction cup 30 is. As the area occupied by the suction cup 30 increases, the area occupied by the avoidance space 302 will gradually decrease. When the area occupied by the avoidance space 302 is small, there is a high risk of interference between the suction cup 30 and the clamping claw 21 in space.

[0065] In order to improve the above phenomenon, in one embodiment, and Satisfies the following formula: ,in, . Optional, The value of can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 or other values ​​that satisfy the above range.

[0066] When specifically connecting the second driving assembly 50 and the suction cup 30 , the second driving assembly 50 may be connected to the middle portion of the suction cup 30 , or may be connected to the end portion of the suction cup 30 . Figure 6 A schematic diagram of a connection between the second drive assembly and the suction cup provided in an embodiment of the present application, such as Figure 6 As shown, in one embodiment, the second drive assembly 50 includes a first drive module 51 and a second drive module 52, and the first drive module 51 and the second drive module 52 are arranged at intervals along the third direction Z, and are connected to the two opposite ends of the suction cup 30 along the third direction Z. During use, the first drive module 51 and the second drive module 52 can synchronously drive the suction cup 30 to move along the second direction Y, so that the force of the suction cup 30 is relatively uniform, and the movement process is relatively smooth. In addition, since the first drive module 51 and the second drive module 52 are distributed at both ends of the suction cup 30, the two do not occupy the space at the top of the suction cup 30. That is, when the suction cup 30 is away from the base 10, a hollow area can be formed between the suction cup 30 and the base 10. When designing, the spacing between the two drive modules along the third direction Z can be greater than the size of the clamp 21 along the third direction Z. In this way, in an application scenario, the suction cup 30 can be moved away from the base 10 along the second direction Y, and the clamp 21 can be operated on the top of the suction cup 30.

[0067] When the first driving module 51 and the second driving module 52 are specifically arranged, the first driving module 51 and the second driving module 52 may include any one of a cylinder, a hydraulic cylinder, a linear motor or a ball screw.

[0068] Please continue to refer to Figure 1 and Figure 2In one embodiment, a plurality of guide plates 60 are provided around the suction cup 30, and the guide plates 60 protrude from the surface of the suction cup 30 on the side away from the base 10. After the suction cup 30 absorbs the battery cell, the guide plates 60 surround the outer periphery of the battery cell to limit the battery cell. In addition, the guide plates 60 can reduce the misalignment between the pole pieces during the transfer of the battery cell, thereby improving the alignment of the pole pieces.

[0069] When the guide plates 60 are specifically arranged, the guide plates 60 may be distributed on two opposite sides of the suction cup 30 along the first direction X, or on two opposite sides of the suction cup 30 along the third direction Z, or randomly distributed around the suction cup 30. When the guide plates 60 are specifically installed, the guide plates 60 may be fixed to a surface of the side of the suction cup 30 away from the base 10, or may be fixed to a side wall of the suction cup 30, or may be fixed to a surface of the side of the suction cup 30 facing the base 10 through a fixing frame.

[0070] When the clamping jaw 21 is specifically arranged, the clamping jaw 21 includes a variety of structures. Figure 1 and Figure 2 As shown, in one embodiment, the clamping jaw 21 includes a base 211 and a plurality of clamping portions 212 disposed on the base 211, and the plurality of clamping portions 212 are arranged at intervals along the third direction Z. When clamping the cover plate, the plurality of clamping portions 212 are distributed at different positions of the cover plate along the third direction Z, so that multiple positions of the cover plate are subjected to force at the same time, thereby improving the stability of the cover plate.

[0071] For another example, in another embodiment, the clamping jaw 21 includes a base 211 and a clamping portion 212 disposed on the base 211, and the clamping portion 212 has a larger size along the third direction Z. When clamping the cover plate, there is a larger contact area between the clamping portion 212 and the cover plate, so that the cover plate can be clamped stably.

[0072] When the clamping portion 212 is specifically set, Figure 2 As shown, in one embodiment, the clamping portion 212 includes a vertical portion 2121 and a bent portion 2122, and the bent portion 2122 is bent relative to the vertical portion 2121 toward the position where the suction cup 30 is located. When the clamping claw 21 including the above-mentioned clamping portion 212 is used to clamp the battery cell, the vertical portion 2121 of the clamping portion 212 is located on both sides of the battery cell, and the bent portion 2122 of the clamping portion 212 is located at the bottom of the battery cell. The vertical portion 2121 can reduce the shaking of the battery cell, and the bent portion 2122 can support the battery cell at the bottom of the battery cell, thereby bearing the weight of the battery cell and preventing the battery cell from falling during the transfer process.

[0073] When the clamping portion 212 and the base 211 are specifically connected, a variety of connection methods are included. For example, in one embodiment, the clamping portion 212 and the base 211 can be fixedly connected by fasteners such as bolts. For another example, in another embodiment, the clamping portion 212 and the base 211 can be slidably connected along the third direction Z. In this embodiment, the position of the clamping portion 212 is adjustable so that it can adapt to battery cells of different sizes. Specifically, when the size of the battery cell along the third direction Z is larger, the gap between the two adjacent clamping portions 212 can be increased; when the size of the battery cell along the third direction Z is smaller, the gap between the two adjacent clamping portions 212 can be reduced. When the above embodiment is specifically implemented, the base 211 is provided with a strip through hole along the third direction Z, and a latch is provided at one end of the clamping portion 212 close to the base 211, and the latch is inserted into the strip through hole and can slide along the strip through hole.

[0074] In order to determine whether the clamping jaw 21 has clamped the battery cell, in one embodiment, the base 211 is provided with a photoelectric sensor, which can be a through-beam photoelectric sensor or a reflector photoelectric sensor. Taking the photoelectric sensor as a through-beam photoelectric sensor as an example, the sensor includes a light emitting end and a light receiving end, which are arranged relatively along the first direction X and are fixed on two bases 211 respectively. The light emitting end can emit a light signal to the light receiving end, and the light receiving end can receive the light signal when the clamping jaw 21 does not clamp the battery cell; when the clamping jaw 21 clamps the battery cell, the battery cell will block the broadcast of the light signal, so that the light receiving end cannot receive the light signal. Therefore, it can be determined whether the clamping jaw 21 has clamped the battery cell based on whether the light receiving end receives the light signal. Of course, when the clamping jaw 21 is used to clamp the cover plate, the above-mentioned photoelectric sensor can also determine whether the clamping jaw 21 has clamped the cover plate.

[0075] For reference Figure 1 and Figure 2 In one embodiment, the battery cell grasping device further includes a third driving assembly 70, which is connected to the clamping jaw assembly 20 and is used to drive the clamping jaw assembly 20 to approach the base 10 along the second direction Y, or to drive the clamping jaw assembly 20 to move away from the base 10 along the second direction Y. Driven by the third driving assembly 70, the clamping jaw assembly 20 and the suction cup 30 can be relatively displaced along the second direction Y, so that the clamping jaw assembly 20 is closer to the base 10 relative to the suction cup 30, or the clamping jaw assembly 20 is farther away from the base 10 relative to the suction cup 30. In specific applications, the clamping jaw assembly 20 can be driven to move along the second direction Y by the third driving assembly 70, and the suction cup 30 can also be driven to move along the second direction Y by the second driving assembly 50, so that the positions of the clamping jaw assembly 20 and the suction cup 30 can be adjusted more flexibly, so that the relative position relationship between the clamping jaw assembly 20 and the suction cup 30 meets the working requirements.

[0076] When the third driving assembly 70 is specifically configured, the third driving assembly 70 may include any one of a cylinder, a hydraulic cylinder, a linear motor or a ball screw.

[0077] Please continue to refer to Figure 1 and Figure 2 In one embodiment, the battery cell grabbing device further includes a fourth driving assembly 80, which is connected to the base 10. The base 10 has a central axis, and the central axis extends along the second direction Y. The fourth driving assembly 80 is used to drive the base 10 to rotate around the central axis, so that the clamping jaw assembly 20 and the suction cup 30 also rotate with the rotation of the base 10.

[0078] In one application scenario, after the gripper assembly 20 grips the battery cell, when the detection assembly detects that the position of the battery cell is deviated, the fourth drive device can be used to drive the base 10 to rotate, thereby adjusting the position of the battery cell. Similarly, in another application scenario, after the suction cup 30 adsorbs the cover plate, when the detection assembly detects that the position of the cover plate is deviated, the fourth drive device can also be used to drive the base 10 to rotate, thereby adjusting the position of the cover plate.

[0079] In the specific configuration of the fourth driving assembly 80, in one embodiment, the fourth driving assembly 80 includes a DD motor.

[0080] Based on the same technical concept, an embodiment of the present invention further provides a battery production device. The battery production device includes a frame and a cell grabbing device as described in any of the above embodiments, wherein the cell grabbing device is slidably arranged on the frame. In specific applications, after the cell grabbing device grabs the cell or the cover plate, the cell or the cover plate can be transferred to the next station by sliding the cell grabbing device along the frame.

[0081] During the process of producing batteries, the battery production equipment can use a battery cell grabbing device to grab battery cells, cover plates or other parts. Among them, the battery cell grabbing device includes a clamping jaw assembly 20 and a suction cup 30. The structures and grabbing principles of the clamping jaw assembly 20 and the suction cup 30 are different. By integrating the clamping jaw assembly 20 and the suction cup 30 into one, the battery cell grabbing device can complete the transfer of various components, thereby making the battery cell grabbing device more powerful and having a wider range of applications. In addition, after the clamping jaw assembly 20 and the suction cup 30 are integrated into one, the integration of the entire device is improved, the number of parts is reduced, and the operation and maintenance costs are reduced. In addition, in specific applications, the clamping jaw assembly 20 and the suction cup 30 can be avoided in space without interfering with each other, and can be flexibly used in a variety of scenarios.

[0082] During specific installation, the cell grabbing device can be slidably connected to the frame through the slide 90. In addition, the frame can be provided with a linear motor module, which is used to drive the slide 90 to move along a set direction, thereby driving the cell grabbing device to a specified position. In this way, during use, after the cell grabbing device grabs the cell or the cover, the linear motor module can be used to drive the slide 90 to move, thereby transferring the cell or the cover to the next station.

[0083] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A battery cell grabbing device, characterized in that: It comprises a base and a clamping claw assembly, a suction cup, a first driving assembly and a second driving assembly arranged on the base; The clamping jaw assembly comprises two clamping jaws, and the two clamping jaws are distributed on two opposite sides of the suction cup along the first direction; The first driving assembly is connected to the two clamping jaws, and is used to drive the two clamping jaws to move relatively closer to each other along the first direction, or to drive the two clamping jaws to move relatively away from each other along the first direction; The second driving assembly is connected to the suction cup, and is used to drive the suction cup away from the base along the second direction, or to drive the suction cup toward the base along the second direction; The first direction and the second direction are perpendicular to each other; The second driving assembly includes a first driving module and a second driving module, the first driving module and the second driving module are arranged at intervals along a third direction, and the first driving module and the second driving module are respectively connected to two opposite ends of the suction cup along the third direction; The third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction; The distance between the first driving module and the second driving module along the third direction is greater than the size of the clamping claw along the third direction, so that the clamping claw can operate on the top of the suction cup.

2. The battery cell grabbing device according to claim 1, characterized in that: The suction cup comprises at least one first wall portion on two opposite sides along the first direction, respectively. The first wall portion is recessed toward the inside of the suction cup to enclose an escape space; the escape space is used to escape the clamping claw.

3. The battery cell grabbing device according to claim 2, characterized in that: The area of ​​the orthographic projection of the suction cup along the second direction is ; The orthographic projection of the first wall portion along the second direction has a first end and a second end, and the area enclosed by the line between the first end and the second end and the orthographic projection of the first wall portion along the second direction is ; Said and stated Satisfies the following formula: Wherein, n is the number of the first wall portions, and n≥2.

4. The battery cell grabbing device according to any one of claims 1 to 3, characterized in that: A plurality of guide plates are arranged on the peripheral side of the suction cup, and the guide plates protrude from a side surface of the suction cup which faces away from the base.

5. The battery cell grabbing device according to any one of claims 1 to 3, characterized in that: The clamping jaw comprises a base and a plurality of clamping portions arranged on the base, wherein the plurality of clamping portions are arranged at intervals along a third direction; The third direction and the first direction are perpendicular to each other, and the third direction and the second direction are perpendicular to each other.

6. The battery cell grabbing device according to claim 5, characterized in that: The clamping portion is slidably connected to the base along the third direction.

7. The battery cell grabbing device according to claim 5, characterized in that: The clamping portion includes a vertical portion and a bent portion, the vertical portion is connected to the base, and the bent portion is bent relative to the vertical portion toward a side where the suction cup is located.

8. The battery cell grabbing device according to any one of claims 1 to 3, characterized in that: It also includes a third driving assembly, which is connected to the clamping jaw assembly and is used to drive the clamping jaw assembly to approach the base along the second direction, or to drive the clamping jaw assembly to move away from the base along the second direction.

9. The battery cell grabbing device according to any one of claims 1 to 3, characterized in that: It also includes a fourth driving assembly, which is connected to the base; the base has a central axis, and the fourth driving assembly is used to drive the base to rotate around the central axis; the central axis extends along the second direction.

10. A battery production device, characterized in that: It comprises a frame and a battery cell grabbing device as described in any one of claims 1 to 9, wherein the battery cell grabbing device is slidably arranged on the frame.

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