Device for feeding adapter piece, battery production line, and method for feeding adapter piece

Abstract

A device for feeding an adapter piece, a battery production line, and a method for feeding an adapter piece, pertaining to the technical field of battery production. The device for feeding an adapter piece comprises a frame, a grabbing assembly, a positioning disc, and a transfer apparatus. The frame is provided with a plurality of workstations. Containers at one or more workstations bear positive adapter pieces, and containers at one or more workstations bear negative adapter pieces. The grabbing assembly is arranged on the frame. The positioning disc is arranged on the frame, and the positioning disc is provided with a plurality of positioning recesses. Two positioning recesses that form a pair are used for positioning a positive adapter piece and a negative adapter piece, respectively. The grabbing assembly is used for grabbing adapter pieces borne by containers at workstations and moving said pieces to corresponding positioning recesses, such that the position of a positive adapter piece relative to a negative adapter piece meets feeding requirements. The transfer apparatus is arranged on the frame, and the transfer apparatus is used for picking up adapter pieces in positioning recesses and feeding same to a welding assembly together.

Description

Device for loading adapters, battery production line, and method for loading adapters

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on Chinese patent application number 202410146856.3, application date February 2, 2024, and invention name “Equipment for loading adapter sheets, battery production line and method for loading adapter sheets”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this disclosure as a reference. Technical Field

[0003] The present disclosure relates to the technical field of battery production, and in particular to a device for loading adapters, a battery production line, and a method for loading adapters. Background Art

[0004] During the battery production process, the adapter needs to be welded to the tabs of the bare battery cell. The welding quality of the adapter and the tabs can affect the quality of the finished battery.

[0005] In the related art, the yield rate of finished batteries is low.

[0006] Summary of the Invention

[0007] In view of this, the embodiments of the present disclosure hope to provide an apparatus for loading adapter sheets, a battery production line, and a method for loading adapter sheets to improve the yield of finished batteries.

[0008] To achieve the above objectives, the technical solution of the embodiment of the present disclosure is implemented as follows:

[0009] The present disclosure provides a device for loading adapter sheets, including:

[0010] The frame has a plurality of working positions, wherein the container of one or more working positions carries the positive electrode adapter, and the container of one or more working positions carries the negative electrode adapter;

[0011] A grabbing assembly, arranged on the frame;

[0012] A positioning plate is provided on the frame, the positioning plate having a plurality of positioning slots, wherein two pairs of the positioning slots respectively position the positive electrode adapter and the negative electrode adapter, and the grabbing assembly is used to grab the adapter carried by the container in the working position and move it to the corresponding positioning slot, so that the position of the positive electrode adapter relative to the negative electrode adapter meets the loading requirements;

[0013] A transfer device is provided on the frame, and is used to pick up the positive electrode adapter in the positioning groove and the negative electrode adapter in the corresponding positioning groove and load them together to the welding assembly;

[0014] The equipment also includes a first transverse movement device, a first lifting device and a collection assembly. The collection assembly is used to collect the container. The first transverse movement device can move back and forth below the working position and below the collection assembly. The first lifting device is used to lift the container located below the collection assembly so that the container is placed on the collection assembly.

[0015] In an embodiment of the present disclosure, the device is provided with a positioning plate. A gripping assembly can move the positive and negative electrode adapter plates carried by a container at a working position to the positioning plate. The positioning grooves of the positioning plate can position the adapter plates, and a transfer device can move the positioned positive and negative electrode adapter plates to corresponding positions. The position of the adapter plates is positioned before loading, so that the position of the positive electrode adapter plate relative to the negative electrode adapter plate meets the loading requirements. After loading, when the adapter plates are welded to the tabs of the bare battery cells, the weld mark can be more accurately located in the pre-set position. This ensures that the battery cells formed after welding are subjected to stable force and the current flows smoothly, thereby improving the yield of the finished battery. Furthermore, the device also includes a first transverse movement device, a first lifting device, and a collection assembly. The first transverse movement device can transfer the target container or empty container at the working position to the bottom of the collection assembly. The first lifting device then places the container on the collection assembly, allowing containers that have not yet been inspected to be placed at the working position. The process of changing containers is automated, reducing manual intervention and making the loading process smoother.

[0016] In one embodiment, the side surfaces of the positioning groove are inclined from top to bottom toward the central axis of the positioning groove.

[0017] In the disclosed embodiment, the side surface of the positioning groove is inclined from top to bottom toward the central axis of the positioning groove. The side surface of the positioning groove can guide the adapter plate to move to the bottom surface of the positioning groove, and the guiding method is simple and low in cost.

[0018] In one embodiment, the frame has a loading position, which is used to load the container. The device also includes a moving component, which is arranged on the frame and is used to move the container carrying the adapter from the loading position to the working position.

[0019] In the disclosed embodiment, the moving assembly can move a container located at the loading position to the working position. This makes the process of moving the container to the working position more automated, and the loading process smoother. Furthermore, eliminating manual handling of the container allows the container to be placed more accurately at the working position.

[0020] In one embodiment, the moving assembly includes a second transverse moving device, a second lifting device and a positioning device. The second transverse moving device and the second lifting device are located below the frame. The second transverse moving device is used to drive the container from the loading position along the extension direction of the second transverse moving device to the working position. The second lifting device is used to drive the container along the up and down directions to the working position. The positioning device is arranged on the frame, and the positioning device is used to position the container to the working position.

[0021] In the disclosed embodiment, the moving assembly includes a second transverse moving device, a second lifting device, and a positioning device. The positioning device can more accurately position the container to the working position, thereby alleviating the problem of the adapter being unqualified due to deviation in the container position.

[0022] In one embodiment, the device further includes an image acquisition component, which is disposed on the frame. The image acquisition component is used to capture an image of the adapter carried by the container in the working position and send the captured image to a host computer so that the host computer detects the image sent by the image acquisition component.

[0023] In the disclosed embodiment, the device is equipped with an image acquisition component that captures images of the adapters held by the container in the working position and transmits the images to a host computer, enabling the host computer to inspect the adapters. By inspecting the adapters using the image acquisition component, unqualified adapters can be removed from the production line, further improving the pass rate of finished batteries.

[0024] The present disclosure also provides a battery production line, comprising:

[0025] Any of the above-mentioned devices;

[0026] The welding assembly is used to receive the adapter captured by the transfer device.

[0027] The present disclosure also provides a method for loading an adapter sheet, including:

[0028] The adapter piece with a qualified test result is moved from the container to the corresponding positioning slot of the positioning plate on the frame by the grabbing assembly on the frame, so as to position the positive electrode adapter piece and the corresponding negative electrode adapter piece;

[0029] After the positioning, the positive electrode adapter in the positioning groove and the negative electrode adapter in the corresponding positioning groove are loaded together to the welding assembly by the transfer device on the frame; the container located at the working position is removed from the working position by the first transverse movement device, the first lifting device and the collection assembly. The method further includes a removal step, which includes:

[0030] driving the container from the working position to below the collecting assembly by a first transverse movement device;

[0031] The container located below the collecting assembly is lifted up by the first lifting device so that the container is placed on the collecting assembly.

[0032] In the disclosed embodiment, when the adapter plate passes inspection, the qualified adapter plate is moved from the container to the positioning plate for positioning by a gripping assembly. The positioning slots in the positioning plate can position the positive and negative adapter plates. The position of the positive adapter plate relative to the negative adapter plate meets the requirements for loading. After loading, when the adapter plate is welded to the tab of the bare battery cell, the weld mark can be accurately positioned in the pre-set position. This ensures that the battery cell formed after welding is subjected to stable stress and the current flows smoothly, thereby improving the yield rate of the finished battery.

[0033] In one embodiment, the adapter sheet is imaged by an image acquisition component, and unqualified adapter sheets are collected by a recycling device; the method further includes:

[0034] An image acquisition component on a rack is used to acquire an image of an adapter carried in a container at a working position on the rack and the acquired image is sent to a host computer;

[0035] The controller sends the type of the adapter in the container corresponding to the image captured by the image acquisition component to the host computer;

[0036] The host computer detects the image sent by the image acquisition component according to the type of the adapter in the corresponding container and sends the detection result to the controller;

[0037] When the controller determines that the detection result of the adapter is unqualified, the unqualified adapter is moved from the container to the recovery device through the grabbing component.

[0038] In the disclosed embodiment, an image acquisition assembly on the rack captures images of the adapters held by the container in the working position and transmits them to a host computer, enabling the host computer to inspect the adapters. The host computer compares the images sent by the image acquisition assembly with the adapter type and can move unqualified adapters to a recycling device, further improving the pass rate of finished batteries.

[0039] In one embodiment, the container has a plurality of accommodating cavities for carrying the adapter sheets; the method further comprises:

[0040] When it is determined that the detection results of a first preset number of adapter sheets in the same accommodating cavity are all unqualified, the image acquisition component jumps to capture images of the adapter sheet in another accommodating cavity.

[0041] In the disclosed embodiment, when the inspection results of multiple consecutive adapters in the same accommodating cavity fail, the image acquisition component captures images of the adapter in another accommodating cavity. During the placement of the adapters in the accommodating cavity, due to human or mechanical problems, the position of the adapters may deviate or be mixed up, which may result in errors in the adapters of the entire accommodating cavity. When multiple consecutive adapters fail, skipping that accommodating cavity can speed up the loading process and avoid wasting time on inspecting the failed adapters.

[0042] In one embodiment, the device for loading adapter sheets further includes a first transverse movement device, a first lifting device, and a collection assembly. The receiving cavity corresponding to a first preset number of consecutive adapter sheets in the same receiving cavity that have all failed inspection results is a target cavity. The method further includes:

[0043] When it is determined that the second preset number of target cavities are detected continuously in the same container, a moving-out step is executed, and the container that is moved from the working position to the bottom of the collecting assembly under the drive of the first transverse movement device is the target container, and the target container is the container corresponding to the second preset number of target cavities that appear continuously;

[0044] After the target container is driven to move from the working position to below the collecting component by the first transverse movement device, the image acquisition component is used to capture the image of the adapter in another container at the working position and send the captured image to the controller.

[0045] In the disclosed embodiment, when it is determined that the second preset number of target cavities have been continuously inspected in the same container, the target container is moved out of the working position and moved to the collection assembly via the first transverse movement device and the first lifting device. When a container has multiple target cavities continuously, it is possible that one of the adapters may be placed incorrectly during the process of placing the adapter in the container, resulting in errors in the placement of subsequent adapters. When multiple target cavities are continuously present, skipping the container can speed up the loading process and avoid wasting time on inspecting unqualified adapters.

[0046] It is understandable that when it is determined that the same container continuously detects the second preset number of target cavities, the container moved out of the working position by executing the moving-out step is the target container.

[0047] In one embodiment, the container is moved from a loading position of a rack to a working position of the rack by a moving assembly; after the target container is driven by a first transverse movement device to move from the working position to below the collecting assembly, the method further comprises:

[0048] The moving assembly moves another container carrying the adapter plate from the loading position to the working position.

[0049] In the disclosed embodiment, once the target container is moved out of the workstation, the moving assembly can move another container to the workstation, allowing the image acquisition assembly to continue capturing images. The moving process is highly automated, alleviating the need for manual container movement.

[0050] In one embodiment, a container corresponding to a second preset number of target cavities appearing consecutively in the same container is a target container, and the method further includes:

[0051] When the controller determines that a third preset number of target containers are detected continuously, an alarm signal is issued.

[0052] In the embodiment of the present disclosure, an alarm is triggered when multiple target containers are detected. If multiple target containers are detected, a major fault may have occurred, and an alarm is required to notify the operator to check each link of the loading process to resolve the fault and continue loading.

[0053] In one embodiment, detecting an adapter sheet carried in a container at a working position includes detecting an image sent by the image acquisition component according to the type of the adapter sheet in the corresponding container by a host computer and sending the detection result to the controller, including:

[0054] Determining whether the detection result of the adapter sheet is qualified based on the target feature of the adapter sheet, the target feature includes at least one of color, size, shape and position accuracy. The host computer determines the preset color of the adapter sheet, the preset position of the anti-foolproof part of the adapter sheet and the preset size of the adapter sheet according to the type of the adapter sheet in the corresponding container;

[0055] When the host computer determines that the adapter piece in the image meets the first condition, the host computer determines that the detection result of the adapter piece in the image is qualified and sends the qualified detection result to the controller, wherein the first condition is that the color of the adapter piece in the image, the position of the anti-foolproof portion of the adapter piece, and the size of the adapter piece are respectively consistent with the preset color, the preset position, and the preset size, and the adapter piece in the image is located in the accommodating cavity of the corresponding container;

[0056] When the host computer determines that the adapter piece in the image meets the second condition, the host computer determines that the inspection result of the adapter piece in the image is unqualified and sends the unqualified inspection result to the controller. The second condition is that any one of the color of the adapter piece in the image, the position of the anti-foolproof part of the adapter piece and the size of the adapter piece does not match the corresponding items in the preset color, the preset position and the preset size, or the adapter piece in the image is located outside the accommodating cavity of the corresponding container.

[0057] In the disclosed embodiment, the color of the adapter, the position of the anti-mistake portion and the size are compared with the preset color, preset position and preset size respectively, so that the adapter that passes the inspection can meet the operator's requirements for the preset characteristics, thereby increasing the yield of the finished battery.

[0058] The device provided by the embodiment of the present disclosure is provided with a positioning plate. The gripping assembly can move the positive electrode adapter plate and the negative electrode adapter plate carried by the container at the working position to the positioning plate. The positioning groove of the positioning plate can position the adapter plate. The transfer device can move the positioned positive electrode adapter plate and the negative electrode adapter plate to the corresponding position. The position of the adapter plate is positioned before the adapter plate is loaded. The position of the positive electrode adapter plate relative to the negative electrode adapter plate meets the loading requirements. After the adapter plate is loaded, when it is welded to the tab of the bare battery cell, the weld mark can be more accurately located at the pre-set position. As a result, the battery cell formed after welding is subjected to stable force and the current flows smoothly, thereby improving the yield of the finished battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] FIG1 is a schematic structural diagram of an apparatus for loading adapter sheets according to an embodiment of the present disclosure;

[0060] FIG2 is a partial enlarged view of position A in FIG1 ;

[0061] FIG3 is a partial enlarged view of position B in FIG1 ;

[0062] FIG4 is a schematic structural diagram of an apparatus for loading adapter sheets from another perspective in the first embodiment of the present disclosure;

[0063] FIG5 is a partial enlarged view of position C in FIG4 ;

[0064] FIG6 is a schematic structural diagram of an apparatus for loading adapter sheets from another perspective in the second embodiment of the present disclosure;

[0065] FIG7 is a schematic structural diagram of an adapter sheet according to an embodiment of the present disclosure;

[0066] FIG8 is a schematic flow chart of a method for loading an adapter sheet according to the first embodiment of the present disclosure;

[0067] FIG9 is a schematic flow chart of a method for loading an adapter sheet according to a second embodiment of the present disclosure;

[0068] FIG10 is a schematic diagram of a process of moving another container carrying an adapter sheet from a loading position to a working position by a moving assembly according to an embodiment of the present disclosure;

[0069] FIG11 is a schematic diagram of a process for determining whether an adapter is qualified by a host computer according to an embodiment of the present disclosure.

[0070] Explanation of the accompanying drawings: 1. Frame; 1a. First working position; 1b. Loading position; 1c. Up and down direction; 1d. Second working position; 2. Image acquisition component; 3. Positioning plate; 3a. Positioning slot; 4. Transfer device; 5. First transverse movement device; 6. First lifting device; 7. Collection component; 8. Moving component; 80. Second transverse movement device; 81. Positioning device; 82. Second lifting device; 9. Container; 9a. Accommodating chamber; 10. Recovery device; 11. Grabbing component; 110. Outer frame; 111. Spider hand device; 12. Adapter; 12a. Anti-fouling part. DETAILED DESCRIPTION

[0071] The following embodiments of the technical solution of the present disclosure are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present disclosure and are therefore only examples and are not intended to limit the scope of protection of the present disclosure.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this disclosure; the terms "including" and "having" of the embodiments of this disclosure and any variations thereof are intended to cover non-exclusive inclusions.

[0073] In the description of the embodiments of the present disclosure, technical terms such as "first," "second," and "third" are used solely to distinguish different objects and should not be understood to indicate or imply relative importance or to implicitly specify the quantity, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of the present disclosure, "plurality" means more than two, unless otherwise specifically defined.

[0074] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0075] In the description of the embodiments of the present disclosure, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0076] In the description of the embodiments of the present disclosure, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal connectivity between two components or interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure based on specific circumstances.

[0077] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0078] As part of the creative concept of the present disclosure, before describing the embodiments of the present disclosure, it is necessary to analyze the reasons for the low yield of finished batteries in related technologies, and obtain the technical solutions of the embodiments of the present disclosure through reasonable analysis.

[0079] In the related art, battery cell processing requires the use of adapters between the tabs of paired bare cells to connect them. Before welding, the relative position of the adapter and tab may deviate. When welding with such a deviation, the position of the adapter in the finished battery differs significantly from the preset position, resulting in a low yield rate.

[0080] The positioning plate 3 of the device for loading the adapter plate 12 disclosed herein has multiple positioning grooves 3a, which respectively position the positive and negative adapter plates 12. Loading the positioned adapter plates 12 allows for more precise welding of the adapter plates 12 to the tabs, thereby increasing the yield rate of the finished battery.

[0081] The present application provides an adapter plate loading device, which is mainly used to load the adapter plate 12 of a battery cell so that the adapter plate 12 can be loaded to a position for welding with a bare battery cell.

[0082] In a first aspect of an embodiment of the present disclosure, there is provided a device for loading an adapter plate 12. Please refer to Figures 1 to 6. The device for loading the adapter plate 12 includes a frame 1, a grabbing assembly 11, a positioning disc 3, and a transfer device 4. The frame 1 has multiple working positions, and the containers 9 at one or more working positions carry the positive electrode adapter plate 12, and the containers 9 at one or more working positions carry the negative electrode adapter plate 12. The grabbing assembly 11 is arranged on the frame 1. The positioning disc 3 is arranged on the frame 1, and the positioning disc 3 has multiple positioning grooves 3a. Among the multiple positioning grooves 3a, two pairs of positioning grooves 3a respectively position the positive electrode adapter plate 12 and the negative electrode adapter plate 12. The grabbing assembly 11 is used to grab the adapter plate 12 carried by the container 9 at the working position and move it to the corresponding positioning groove 3a, so that the position of the positive electrode adapter plate 12 relative to the negative electrode adapter plate 12 meets the loading requirements. The transfer device 4 is provided on the frame 1 and is used to pick up the positive electrode adapter 12 in the positioning groove 3a and the negative electrode adapter 12 in the corresponding positioning groove 3a and load them together to the welding assembly.

[0083] The battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be recharged to activate the active material after the battery cell is discharged and can be used continuously.

[0084] The battery cells can be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid batteries, etc., which are not limited in the embodiments of the present application.

[0085] The battery cell includes a shell, a bare cell, a conductive terminal and a transition piece 12. The bare cell is located in the shell, the conductive terminal is installed on the shell, and the transition piece 12 is connected to the conductive terminal and the bare cell respectively to enable electrical conduction between the conductive terminal and the bare cell.

[0086] A bare cell consists of a positive electrode, a negative electrode, and a separator, which is placed between the positive and negative electrodes. During the charge and discharge process of a battery cell, active ions (such as lithium ions) are inserted and removed from the positive and negative electrodes. The separator is placed between the positive and negative electrodes to prevent short circuits between the positive and negative electrodes while allowing active ions to pass through.

[0087] Illustratively, the positive electrode may be a positive electrode sheet, which may include a positive electrode current collector and a positive electrode active material disposed on at least one surface of the positive electrode current collector.

[0088] Illustratively, the positive electrode current collector has two surfaces facing each other in its thickness direction, and the positive electrode active material is disposed on either or both of the two facing surfaces of the positive electrode current collector.

[0089] For example, the positive electrode current collector may be a metal foil, a conductive polymer material, a carbon material, or a composite current collector. For example, as the metal foil, pure metal, alloy, or surface-treated metal may be used, including but not limited to stainless steel, copper, aluminum, nickel, nickel, titanium, or silver. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material (aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0090] Exemplarily, the positive electrode active material may include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides, and their respective modified compounds. However, the present application is not limited to these materials, and other traditional materials that can be used as positive electrode active materials for batteries may also be used. These positive electrode active materials may be used alone or in combination of two or more. Examples of lithium-containing phosphates may include, but are not limited to, at least one of lithium iron phosphate (such as LiFePO4 (also referred to as LFP)), a composite material of lithium iron phosphate and carbon, lithium manganese phosphate (such as LiMnPO4), a composite material of lithium manganese phosphate and carbon, lithium iron manganese phosphate, and a composite material of lithium iron manganese phosphate and carbon. Examples of lithium transition metal oxides may include, but are not limited to, lithium cobalt oxide (such as LiCoO2), lithium nickel oxide (such as LiNiO2), lithium manganese oxide (such as LiMnO2, LiMn2O4), lithium nickel cobalt oxide, lithium manganese cobalt oxide, lithium nickel manganese oxide, lithium nickel cobalt manganese oxide (such as LiNi1 / 3Co1 / 3Mn1 / 3O2 (also referred to as NCM333), LiNi0.5Co0.2Mn0.3O2 (also referred to as NCM523), LiNi0.5Co At least one of LiNi0.6Co0.2Mn0.2O2 (also referred to as NCM622), LiNi0.8Co0.1Mn0.1O2 (also referred to as NCM811), lithium nickel cobalt aluminum oxide (such as LiNi0.8Co0.15Al0.05O2), and modified compounds thereof. Modified compounds refer to substances obtained by modifying the above substances through doping or coating.

[0091] Illustratively, the negative electrode may be a negative electrode sheet, and the negative electrode sheet may include a negative electrode current collector.

[0092] As an example, the negative electrode current collector may be a metal foil, a conductive polymer material, a carbon material, or a composite current collector. For example, as the metal foil, a pure metal, an alloy, or a surface-treated metal may be used, including but not limited to stainless steel, copper, aluminum, nickel, nickel, titanium, or silver. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material (copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0093] As an example, the negative electrode sheet may include a negative electrode current collector and a negative electrode active material disposed on at least one surface of the negative electrode current collector.

[0094] As an example, the negative electrode current collector has two surfaces facing each other in its thickness direction, and the negative electrode active material is provided on either or both of the two facing surfaces of the negative electrode current collector.

[0095] As an example, the negative electrode active material may adopt the negative electrode active material for battery cells that is well known in the art. As an example, the negative electrode active material may include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, and lithium titanate. The silicon-based material may be selected from at least one of elemental silicon, silicon oxide compounds, silicon-carbon composites, silicon-nitrogen composites, and silicon alloys. The tin-based material may be selected from at least one of elemental tin, tin oxide compounds, and tin alloys. However, the present application is not limited to these materials, and other traditional materials that can be used as negative electrode active materials for battery cells may also be used. These negative electrode active materials may be used alone or in combination of two or more.

[0096] Exemplarily, the separator is a separator. The present application has no particular limitation on the type of separator, and any known separator with a porous structure having good chemical stability and mechanical stability can be selected.

[0097] As an example, the primary material of the separator can be selected from at least one of glass fiber, non-woven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramic. The separator can be a single-layer film or a multi-layer composite film, without particular limitation. When the separator is a multi-layer composite film, the materials of each layer can be the same or different, without particular limitation. The separator can be a separate component located between the positive and negative electrodes, or it can be attached to the surfaces of the positive and negative electrodes. The surface of the separator can also be coated with an inorganic particle coating, an organic particle coating, or an organic / inorganic composite coating.

[0098] In some embodiments, the separator is a solid electrolyte, which is disposed between the positive electrode and the negative electrode and serves to transport ions and isolate the positive and negative electrodes.

[0099] Exemplarily, the outer shell of the battery cell can be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell) or an aluminum-plastic film, etc. In some embodiments, the outer shell can be a sealed structure or a non-sealed structure. As an example, when the outer shell is a non-sealed structure, the outer shell plays a role in protecting the bare battery cell, and a sealing bag is further included between the outer shell and the bare battery cell, which is used to encapsulate the bare battery cell and the electrolyte. Specifically, the sealing bag can be a bag-shaped insulating member or an aluminum-plastic film. When the outer shell is a sealed structure, it is used to encapsulate components such as the bare battery cell and the electrolyte.

[0100] Exemplarily, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, and a polygonal battery. The polygonal battery is, for example, a hexagonal battery, etc. There is no special limitation in this application.

[0101] Exemplarily, the housing includes an end cap and a shell, wherein the shell has an opening and the end cap covers the opening. The shell may have one or more openings. One or more end caps may also be provided.

[0102] Exemplarily, the positive electrode has a positive electrode tab, which is connected to a corresponding adapter plate 12 , and the corresponding adapter plate 12 is connected to a corresponding conductive terminal, so that electrical conduction can be achieved between the conductive terminal of the positive electrode and the positive electrode tab.

[0103] Illustratively, the negative electrode has a negative electrode tab, which is connected to a corresponding adapter plate 12 , and the corresponding adapter plate 12 is connected to a corresponding conductive terminal, so that electrical conduction can be achieved between the conductive terminal of the negative electrode and the negative electrode tab.

[0104] For example, referring to FIG1 , the rack 1 has a first working position 1a and a second working position 1d, wherein the container 9 at the first working position 1a carries the positive electrode adapter 12, and the container 9 at the second working position 1d carries the negative electrode adapter 12.

[0105] Illustratively, the container 9 located at the first working position 1a carries the positive electrode adapter plate 12. After the transfer of the adapter plates 12 in the container 9 carrying the positive electrode adapter plate 12 is completed, the container 9 carrying the negative electrode adapter plate 12 is transferred to the first working position 1a.

[0106] Illustratively, the container 9 located at the second working position 1d carries the negative electrode adapter sheet 12. After the transfer of the adapter sheet 12 in the container 9 carrying the negative electrode adapter sheet 12 is completed, the container 9 carrying the positive electrode adapter sheet 12 is transferred to the second working position 1d.

[0107] Exemplarily, the material of the positive electrode adapter plate 12 is copper.

[0108] Illustratively, the material of the negative electrode adapter plate 12 is aluminum.

[0109] In the disclosed embodiment, the device is provided with a positioning plate 3, and the gripping assembly 11 can move the positive electrode adapter plate 12 and the negative electrode adapter plate 12 carried by the container 9 located at the working position to the positioning plate 3. The positioning groove 3a of the positioning plate 3 can position the adapter plate 12, and the transfer device 4 can move the positioned positive electrode adapter plate 12 and the negative electrode adapter plate 12 to the corresponding position. The position of the adapter plate 12 is positioned before the adapter plate 12 is loaded. The position of the positive electrode adapter plate 12 relative to the negative electrode adapter plate 12 meets the loading requirements. After the adapter plate 12 is loaded and welded to the tab of the bare battery cell, the weld mark can be more accurately located at the pre-set position. As a result, the battery cell formed after welding is subjected to stable force and the current flows smoothly, thereby improving the yield of the finished battery.

[0110] Exemplarily, referring to FIG. 1 , the device further includes a recycling device 10 , which is disposed on the frame 1 and is used to collect unqualified adapter sheets 12 .

[0111] Exemplarily, the recovery device 10 is a recovery tank.

[0112] Exemplarily, the grabbing assembly 11 includes an outer frame 110 and a spider hand device 111 . The outer frame 110 is disposed on the frame 1 , and the spider hand device 111 is disposed on the frame 1 . The spider hand device 111 is equipped with a suction cup structure to grab the adapter 12 .

[0113] In one embodiment, referring to FIG. 3 , the side surfaces of the positioning groove 3 a are inclined from top to bottom toward the central axis of the positioning groove 3 a.

[0114] In the disclosed embodiment, the side surface of the positioning groove 3a is inclined from top to bottom toward the central axis of the positioning groove 3a. The side surface of the positioning groove 3a can guide the adapter plate 12 to move to the bottom surface of the positioning groove 3a. The guiding method is simple and low in cost.

[0115] It is understood that the present disclosure is not limited to the positioning plate 3 having the positioning groove 3a for positioning the adapter plate 12. In one embodiment, the positioning plate 3 includes a positioning assembly and a tray, both of which are disposed on the frame 1. The tray is used to receive the adapter plate 12 grasped by the grasping assembly 11. The positioning assembly is disposed around the tray and includes two positioning cylinders arranged in cross-movement directions. The positioning cylinders are used to position the adapter plate 12.

[0116] In one embodiment, referring to FIG. 3 , there are two positioning grooves 3 a , which are configured so that the spacing between the adapters 12 in the two positioning grooves 3 a satisfies the requirement that the positive and negative tabs of the bare cell can be welded to the corresponding adapters 12 .

[0117] In the disclosed embodiment, there are two positioning slots 3a, and the two positioning slots 3a are configured so that the spacing between the adapter plates 12 within the two positioning slots 3a is adapted to the positive and negative tabs of the bare battery cell. The gripping assembly 11 places the two types of adapter plates 12 in different positioning slots 3a according to the type of adapter plate 12. The two positioning slots 3a position the two pairs of adapter plates 12, and the moving device then loads the two pairs of adapter plates 12 into the welding assembly. The synchronous movement of the two adapter plates 12 can improve production efficiency to a certain extent.

[0118] In one embodiment, please refer to Figure 5, the equipment also includes a first transverse movement device 5, a first lifting device 6 and a collecting assembly 7, the collecting assembly 7 is used to collect the container 9, the first transverse movement device 5 can move back and forth below the working position and below the collecting assembly 7, the first lifting device 6 is used to lift the container 9 located below the collecting assembly 7 so that the container 9 is placed on the collecting assembly 7.

[0119] Exemplarily, the first transverse movement device 5 is arranged on the frame 1 .

[0120] Exemplarily, the first lifting device 6 is arranged on the first transverse moving device 5 .

[0121] Exemplarily, the first transverse movement device 5 and / or the first lifting device 6 are cylinders.

[0122] In the disclosed embodiment, the apparatus further comprises a first transverse movement device 5, a first lifting device 6, and a collection assembly 7. The first transverse movement device 5 is capable of transferring target containers or empty containers 9 located at the workstation to below the collection assembly 7. The first lifting device 6 then places the container 9 on the collection assembly 7, allowing uninspected containers 9 to be placed at the workstation. The automated process of replacing containers 9 reduces manual intervention and makes the loading process smoother.

[0123] In one embodiment, please refer to Figure 4, the frame 1 has a loading position 1b, which is used to load the container 9. The equipment also includes a moving component 8, which is arranged on the frame 1 and is used to move the container 9 carrying the adapter plate 12 from the loading position 1b to the working position.

[0124] It is understandable that the loading position 1 b can store multiple containers 9 .

[0125] In the disclosed embodiment, the moving assembly 8 can move the container 9 located at the loading position 1b to the working position. This makes the process of moving the container 9 to the working position more automated, and the loading process is smooth. Furthermore, eliminating the need for manual handling of the container 9 allows the container 9 to be placed more accurately at the working position.

[0126] In one embodiment, please refer to Figures 4 and 6, the moving assembly 8 includes a second transverse moving device 80, a second lifting device 82 and a positioning device 81. The second transverse moving device and the second lifting device 82 are located below the frame 1. The second transverse moving device 80 is used to drive the container 9 from the loading position 1b along the extension direction of the second transverse moving device 80 to approach the working position. The second lifting device 82 is used to drive the container 9 along the up and down direction 1c to approach the working position. The positioning device 81 is arranged on the frame 1, and the positioning device 81 is used to position the container 9 to the working position.

[0127] Exemplarily, the second transverse movement device 80 is provided on the frame 1 .

[0128] Exemplarily, the second lifting device 82 is arranged on the second transverse movement device 80 .

[0129] Exemplarily, the second transverse movement device 80 and / or the second lifting device 82 are cylinders.

[0130] Exemplarily, the positioning device 81 is a cylinder, which can drive the spaced-apart blocks to approach each other to clamp the topmost container 9 in the working position, and the remaining containers 9 on the second lifting device 82 can move away from the working position along the up and down direction 1c with the second lifting device 82.

[0131] In the disclosed embodiment, the moving assembly 8 includes a second transverse moving device 80, a second lifting device 82, and a positioning device 81. The positioning device 81 can accurately position the container 9 to the working position, thereby alleviating the situation where the adapter 12 becomes unqualified due to the deviation of the position of the container 9.

[0132] In one embodiment, please refer to Figure 1, the device also includes an image acquisition component 2, which is arranged on the frame 1. The image acquisition component 2 is used to capture an image of the adapter plate 12 carried by the container 9 in the working position and send the captured image to the host computer, so that the host computer can detect the image sent by the image acquisition component 2.

[0133] Exemplarily, the image acquisition component 2 may include an image acquisition device, such as a camera or a webcam.

[0134] Exemplarily, the container 9 is a blister tray.

[0135] Exemplarily, the camera may be a CCD (Charge Coupled Device) camera.

[0136] In the disclosed embodiment, the device is equipped with an image acquisition component 2 that captures an image of the adapter 12 carried by the container 9 in the working position and transmits the image to a host computer, so that the host computer can inspect the adapter 12. By inspecting the adapter 12 using the image acquisition component 2, unqualified adapters 12 can be removed from the production line, thereby further improving the pass rate of the finished batteries.

[0137] A second aspect of the present disclosure provides a battery production line, comprising the device of any one of the above embodiments and a welding assembly. The welding assembly is used to receive the adapter 12 grasped by the transfer device 4.

[0138] A third aspect of the present disclosure provides a method for loading an adapter sheet 12, as shown in Figures 8 and 9, comprising:

[0139] Step S1: Using a gripping assembly on a frame, the adapter piece that has passed the inspection is moved from a container to a corresponding positioning slot on a positioning plate on the frame, so as to position the positive electrode adapter piece and the corresponding negative electrode adapter piece;

[0140] Step S2: After positioning, the positive electrode adapter in the positioning groove and the negative electrode adapter in the corresponding positioning groove are loaded onto the welding assembly by a transfer device on the frame;

[0141] The equipment for transferring sheet loading further comprises a first transverse movement device, a first lifting device and a collecting assembly, and the method further comprises a removing step.

[0142] Illustratively, the detection result of the adapter sheet 12 includes the color, size, shape, and position accuracy of the adapter sheet 12 .

[0143] In the disclosed embodiment, when the test result of the adapter 12 is qualified, the qualified adapter 12 is moved from the container 9 to the positioning plate for positioning by the grabbing assembly 11. The positioning groove 3a in the positioning plate 3 can position the positive and negative adapters 12. The position of the positive adapter 12 relative to the negative adapter 12 meets the requirements of loading. After loading, when the adapter 12 is welded to the tab of the bare battery cell, the weld mark can be more accurately located at the pre-set position. As a result, the battery cell formed after welding is subjected to stable force and the current flows smoothly, thereby improving the yield of the finished battery.

[0144] In one embodiment, referring to FIG. 9 , the adapter sheet 12 is imaged by the image acquisition component 2 , and unqualified adapter sheets 12 are collected by the recycling device 10 ; the method further includes:

[0145] Step S3: using the image acquisition component on the rack to acquire an image of the adapter carried in the container at the working position on the rack and sending the acquired image to the host computer;

[0146] Step S4: sending the type of the adapter in the container corresponding to the image captured by the image acquisition component to the host computer through the controller;

[0147] Step S5: The host computer detects the image sent by the image acquisition component according to the type of the adapter in the corresponding container and sends the detection result to the controller;

[0148] Step S6: When the controller determines that the detection result of the adapter is unqualified, the unqualified adapter is moved from the container to the recovery device through the grabbing component.

[0149] The types of the adapter plate 12 include a positive electrode adapter plate 12 and a negative electrode adapter plate 12 .

[0150] In the disclosed embodiment, the image acquisition assembly 2 on the rack 1 captures an image of the adapter 12 carried by the container 9 in the working position and transmits the image to a host computer, enabling the host computer to inspect the adapter 12. The host computer compares the image sent by the image acquisition assembly 2 with the type of adapter 12 and can move unqualified adapters 12 to a recycling device 10, thereby further improving the qualified rate of finished batteries.

[0151] In one embodiment, referring to FIG. 9 , the container 9 has a plurality of accommodating cavities 9 a for carrying the adapter sheets 12 ; the method further includes:

[0152] Step S7: When it is determined that the detection results of the first preset number of consecutive adapters in the same accommodating cavity are all unqualified, the image acquisition component jumps to capture images of the adapter in another accommodating cavity.

[0153] It should be noted that the embodiment of the present disclosure does not limit the size of the first preset number, and the size of the first preset number can be set according to the actual needs of the operator.

[0154] Exemplarily, the first preset number is 3.

[0155] Exemplarily, when the image acquisition component 2 performs the hole-jumping action, the image acquisition component 2 acquires an image of the adapter piece 12 in another accommodating cavity 9a that has not yet been imaged.

[0156] In the embodiment of the present disclosure, when the inspection results of multiple consecutive adapter plates 12 in the same accommodating cavity 9a fail, the image acquisition component 2 is used to capture images of the adapter plates 12 in another accommodating cavity 9a. During the process of placing the adapter plates 12 in the accommodating cavity 9a, due to human or mechanical problems, the position of the adapter plates 12 may deviate or be mixed up, which may cause the adapter plates 12 in the entire accommodating cavity 9a to be incorrect. When multiple consecutive adapter plates 12 fail, skipping that accommodating cavity 9a can speed up the loading speed and avoid spending more time on inspecting the unqualified adapter plates 12.

[0157] In one embodiment, the removing step includes:

[0158] Step S13: driving the target container from the working position to below the collecting assembly by the first transverse movement device, the target container being a container corresponding to a second preset number of target cavities appearing continuously;

[0159] Step S14: Lifting the container below the collecting assembly by a first lifting device so that the container is placed on the collecting assembly.

[0160] In one embodiment, referring to FIG. 9 , the device for loading the adapter sheet 12 further includes a first transverse movement device 5, a first lifting device 6, and a collecting assembly 7. The receiving cavity 9a corresponding to a first preset number of consecutive adapter sheets 12 in the same receiving cavity 9a that fail the inspection results is a target cavity. The method further includes:

[0161] Step S8: When it is determined that the same container continuously detects the second preset number of target cavities, a moving step is executed. The container that is moved from the working position to the bottom of the collecting assembly under the drive of the first transverse movement device is the target container. The target container is the container corresponding to the second preset number of target cavities that continuously appear.

[0162] Step S10: After the target container is driven to move from the working position to below the collecting component by the first transverse movement device, the image acquisition component is used to capture an image of the adapter in another container at the working position and the captured image is sent to the controller.

[0163] It should be noted that the embodiment of the present disclosure does not limit the size of the second preset number, and the size of the second preset number can be set according to the actual needs of the operator.

[0164] Exemplarily, the second preset number is 3.

[0165] In the embodiment of the present disclosure, when it is determined that the same container 9 has continuously detected the second preset number of target cavities, the target container is transferred out of the working position and moved to the collection assembly 7 by the first transverse movement device 5 and the first lifting device 6. When a container 9 has multiple target cavities continuously, it is possible that one of the adapter plates 12 is placed incorrectly in the process of placing the adapter plate 12 in the container 9, resulting in errors in the subsequent adapter plates 12. When multiple target cavities are continuously detected, skipping the container 9 can speed up the loading speed and avoid spending more time on detecting unqualified adapter plates 12.

[0166] In one embodiment, referring to FIG. 9 , a container 9 is moved from a loading position 1 b of a rack 1 to a working position of the rack 1 by a moving assembly 8 ; after the target container is driven by a first transverse movement device 5 to move from the working position to below a collecting assembly 7 , the method further includes:

[0167] Step S11: moving another container carrying the adapter plate from the loading position to the working position by using a moving assembly.

[0168] In the disclosed embodiment, once the target container is moved out of the workstation, the moving assembly 8 can move another container 9 to the workstation, allowing the image acquisition assembly to continue capturing images. The moving process is highly automated, alleviating the need for manual movement of the container 9.

[0169] For example, referring to FIG10 , the moving assembly 8 includes a second transverse moving device 80, a second lifting device 82, and a positioning device 81. The moving assembly 8 is used to move another container 9 carrying the adapter plate 12 from the loading position 1b to the working position, including:

[0170] Step S110: moving another container carrying the adapter plate from the loading position to below the working position by the second transverse moving device;

[0171] Step S111: lifting another container carrying the adapter plate by a second lifting device;

[0172] Step S112: positioning another container carrying the adapter sheet to a working position by a positioning device.

[0173] It is understood that the present disclosure is not limited to moving the other container 9 carrying the adapter plate 12 from the loading position 1b to the working position by the moving assembly 8. In one embodiment, the other container 9 can be manually loaded to the working position.

[0174] In one embodiment, referring to FIG. 9 , the container 9 corresponding to the second preset number of target cavities appearing consecutively in the same container 9 is the target container, and the method further includes:

[0175] Step S12: When the controller determines that a third preset number of target containers are detected continuously, an alarm signal is issued.

[0176] It should be noted that the embodiment of the present disclosure does not limit the size of the third preset number, and the size of the third preset number can be set according to the actual needs of the operator.

[0177] Exemplarily, the third preset number is 2.

[0178] In the embodiment of the present disclosure, an alarm is triggered when multiple target containers are detected. If multiple target containers are detected, a major fault may have occurred, and an alarm is required to notify the operator to check each link of the loading process to resolve the fault and continue loading.

[0179] In one embodiment, referring to FIG. 11 , the adapter sheet 12 carried by the container 9 in the working position is detected by the host computer according to the type of the adapter sheet 12 in the corresponding container 9 , and the detection result is sent to the controller, including:

[0180] Step S101: determining whether the test result of the adapter sheet is qualified based on the target characteristics of the adapter sheet, the target characteristics including at least one of color, size, shape, and position accuracy. The host computer determines the preset color of the adapter sheet, the preset position of the anti-fouling portion of the adapter sheet, and the preset size of the adapter sheet according to the type of the adapter sheet in the corresponding container;

[0181] Step S102: When the host computer determines that the adapter sheet in the image meets a first condition, the host computer determines that the detection result of the adapter sheet in the image is qualified and sends the qualified detection result to the controller, wherein the first condition is that the color of the adapter sheet in the image, the position of the foolproof portion of the adapter sheet, and the size of the adapter sheet are respectively consistent with a preset color, a preset position, and a preset size, and the adapter sheet in the image is located in the receiving cavity of the corresponding container;

[0182] Step S103: When the upper computer determines that the adapter piece in the image meets the second condition, the upper computer determines that the inspection result of the adapter piece in the image is unqualified, and sends the unqualified inspection result to the controller. The second condition is that any one of the color of the adapter piece in the image, the position of the anti-foolproof part of the adapter piece and the size of the adapter piece does not match the corresponding items in the preset color, preset position and preset size, or the adapter piece in the image is located outside the accommodating cavity of the corresponding container.

[0183] Illustratively, the foolproof portion 12 a of the positive electrode adapter 12 is shown in FIG. 7 .

[0184] It is understandable that the materials of the positive electrode adapter plate 12 and the negative electrode adapter plate 12 are different, and the colors of different materials are basically different, so the preset colors of each type of adapter plate 12 are also different.

[0185] It is understandable that, in order to distinguish different types of adapter plates 12 , the preset position of the fool-proof portion 12 a of each adapter plate 12 is also different.

[0186] It is understandable that the adapter sheet 12 may have certain dimensional errors during the production process. Setting the preset size can exclude the adapter sheet 12 with larger dimensional errors, thereby increasing the yield of the finished battery.

[0187] In the embodiment of the present disclosure, the color of the adapter sheet 12, the position of the anti-foolproof portion 12a and the size are compared with the preset color, preset position and preset size respectively, so that the adapter sheet 12 that passes the inspection can meet the operator's requirements for the preset characteristics, thereby increasing the yield of the finished battery.

[0188] The foregoing description is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A device for loading adapter sheets, comprising: The rack has a plurality of working positions, wherein the containers at one or more of the working positions carry the positive electrode adapter, and the containers at one or more of the working positions carry the negative electrode adapter; A grabbing assembly, arranged on the frame; A positioning plate is provided on the frame, the positioning plate having a plurality of positioning slots, wherein two pairs of the positioning slots respectively position the positive electrode adapter and the negative electrode adapter, and the grabbing assembly is used to grab the adapter carried by the container in the working position and move it to the corresponding positioning slot, so that the position of the positive electrode adapter relative to the negative electrode adapter meets the loading requirements; A transfer device is provided on the frame, and is used to pick up the positive electrode adapter in the positioning groove and the negative electrode adapter in the corresponding positioning groove and load them together to the welding assembly; The equipment also includes a first transverse movement device, a first lifting device and a collection assembly. The collection assembly is used to collect the container. The first transverse movement device can move back and forth below the working position and below the collection assembly. The first lifting device is used to lift the container located below the collection assembly so that the container is placed on the collection assembly.

2. The device according to claim 1, wherein The side surfaces of the positioning groove are inclined from top to bottom toward the central axis of the positioning groove.

3. The device according to claim 1 or 2, wherein: The frame has a loading position, which is used for loading the container. The equipment also includes a moving component, which is arranged on the frame and is used to move the container carrying the adapter plate from the loading position to the working position.

4. The device according to claim 3, wherein The moving assembly includes a second transverse moving device, a second lifting device and a positioning device. The second transverse moving device and the second lifting device are located below the frame. The second transverse moving device is used to drive the container from the loading position along the extension direction of the second transverse moving device to the working position. The second lifting device is used to drive the container along the up and down directions to the working position. The positioning device is arranged on the frame, and the positioning device is used to position the container to the working position.

5. The device according to claim 4, wherein The second transverse moving device is arranged on the frame, and the second lifting device is arranged on the second transverse moving device.

6. The device according to claim 4 or 5, wherein: The second transverse movement device and / or the second lifting device are / is a cylinder.

7. The device according to any one of claims 1 to 6, wherein: The device also includes an image acquisition component, which is arranged on the frame. The image acquisition component is used to capture images of the adapter carried by the container in the working position and send the captured images to the host computer so that the host computer can detect the images sent by the image acquisition component.

8. The device according to any one of claims 1 to 7, wherein: The equipment further comprises a recycling device, which is arranged on the frame and is used to collect unqualified adapter sheets.

9. The apparatus according to claim 8, wherein The recovery device is a recovery tank.

10. The device according to any one of claims 1 to 9, wherein: The first transverse moving device is arranged on the frame, and the first lifting device is arranged on the first transverse moving device.

11. The device according to any one of claims 1 to 10, wherein: The first transverse movement device and / or the first lifting device are cylinders.

12. A battery production line comprising: The device according to any one of claims 1 to 11; The welding assembly is used to receive the adapter captured by the transfer device.

13. A method for loading an adapter sheet, comprising: The adapter piece with a qualified test result is moved from the container to the corresponding positioning slot of the positioning plate on the frame by the grabbing assembly on the frame, so as to position the positive electrode adapter piece and the corresponding negative electrode adapter piece; After the positioning, the positive electrode adapter in the positioning groove and the negative electrode adapter in the corresponding positioning groove are loaded onto the welding assembly together by the transfer device on the frame; The container at the working position is removed from the working position by the first transverse movement device, the first lifting device and the collection assembly, and the method further includes a removal step, wherein the removal step includes: driving the container from the working position to below the collecting assembly by a first transverse movement device; The container located below the collecting assembly is lifted up by the first lifting device so that the container is placed on the collecting assembly.

14. The method according to claim 13, wherein The adapter collects images through the image acquisition component, and unqualified adapters are collected through a recycling device; the method further includes: An image acquisition component on a rack is used to acquire an image of an adapter carried in a container at a working position on the rack and the acquired image is sent to a host computer; The controller sends the type of the adapter in the container corresponding to the image captured by the image acquisition component to the host computer; The host computer detects the image sent by the image acquisition component according to the type of the adapter in the corresponding container and sends the detection result to the controller; When the controller determines that the detection result of the adapter is unqualified, the unqualified adapter is moved from the container to the recovery device through the grabbing component.

15. The method according to claim 14, wherein The container has a plurality of accommodating cavities for carrying adapter sheets; the method further comprises: When it is determined that the detection results of a first preset number of adapter sheets in the same accommodating cavity are all unqualified, the image acquisition component jumps to capture images of the adapter sheet in another accommodating cavity.

16. The method according to claim 15, wherein The device for loading adapter sheets further includes a first transverse movement device, a first lifting device, and a collection assembly. The receiving cavity corresponding to a first preset number of consecutive adapter sheets in the same receiving cavity that have all failed the inspection results is a target cavity. The method further includes: When it is determined that the second preset number of target cavities are detected continuously in the same container, the moving out step is executed, and the container that is moved from the working position to below the collecting assembly under the drive of the first transverse movement device is the target container, and the target container is the container corresponding to the second preset number of target cavities that appear continuously; After the target container is driven to move from the working position to below the collecting component by the first transverse movement device, the image acquisition component is used to capture the image of the adapter in another container at the working position and send the captured image to the controller.

17. The method according to any one of claims 13 to 16, wherein: The container is moved from the loading position of the rack to the working position of the rack by the moving assembly; After driving the target container from the working position to below the collecting assembly by the first transverse movement device, the method further includes: The moving assembly moves another container carrying the adapter plate from the loading position to the working position.

18. The method according to claim 16, wherein The container corresponding to the second preset number of target cavities appearing continuously in the same container is the target container, and the method further includes: When the controller determines that a third preset number of target containers are detected continuously, an alarm signal is issued.

19. The method according to claim 18, wherein The first preset number and the second preset number are both 3, and the third preset number is 2.

20. The method according to any one of claims 14 to 16 or 18 or 19, wherein: The host computer detects the image sent by the image acquisition component according to the type of the adapter in the corresponding container and sends the detection result to the controller, including: The host computer determines the preset color of the adapter sheet, the preset position of the fool-proof portion of the adapter sheet, and the preset size of the adapter sheet according to the type of the adapter sheet in the corresponding container; When the host computer determines that the adapter piece in the image meets the first condition, the host computer determines that the detection result of the adapter piece in the image is qualified and sends the qualified detection result to the controller, wherein the first condition is that the color of the adapter piece in the image, the position of the anti-foolproof portion of the adapter piece, and the size of the adapter piece are respectively consistent with the preset color, the preset position, and the preset size, and the adapter piece in the image is located in the accommodating cavity of the corresponding container; When the host computer determines that the adapter piece in the image meets the second condition, the host computer determines that the inspection result of the adapter piece in the image is unqualified and sends the unqualified inspection result to the controller. The second condition is that any one of the color of the adapter piece in the image, the position of the anti-foolproof part of the adapter piece and the size of the adapter piece does not match the corresponding items in the preset color, the preset position and the preset size, or the adapter piece in the image is located outside the accommodating cavity of the corresponding container.

Images