Bare cell detection equipment

Abstract

The utility model discloses naked battery cell detection equipment, and belongs to the technical field of battery detection. The naked battery cell detection equipment comprises a main body detection device, a tab detection device and a conveying and carrying device, wherein the main body detection device is used for obtaining a main body top surface image, a main body bottom surface image and a main body side surface image; the tab detection device comprises a tab dislocation detection mechanism and a tab surface detection mechanism, the tab dislocation detection mechanism is used for obtaining a tab dislocation image, and the tab surface detection mechanism is used for shooting the side face and the end face of the tab of the naked battery cell to obtain a tab side face image and a tab end face image; and the conveying and carrying device is used for driving the naked battery cell to pass through the main body detection device and the tab detection device respectively. Through the arrangement of the main body inspection device, the tab detection device and the carrying and conveying device, the main body and the tab of the naked battery cell are comprehensively detected in an automatic manner, so that subjective judgment errors and fatigue factors possibly occurring in manual detection are reduced, the detection efficiency and the detection precision are improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery detection, and particularly relates to a bare cell detection device. BACKGROUND

[0002] With the development of new energy technology, the application of batteries is more and more extensive. As an important part of batteries, the quality state of bare cells is also paid more and more attention by people. However, the current detection of bare cells often cannot realize automatic and comprehensive detection, resulting in low efficiency and low accuracy of the detection result of whether the bare cell is qualified, which is not conducive to mass production of production enterprises. CONTENT OF THE UTILITY MODEL

[0003] The application aims to at least solve one of the technical problems existing in the prior art. To this end, the application provides a bare cell detection device, which realizes comprehensive detection of the main body and the tab of the bare cell by means of automation, reduces subjective judgment errors and fatigue factors that may occur in manual detection, improves detection efficiency and the accuracy of the detection result, and reduces production cost.

[0004] In a first aspect, the application provides a bare cell detection device for detecting a bare cell, the bare cell comprising a main body and a plurality of tabs extending out of the side surface of the main body; the bare cell detection device comprising:

[0005] a main body detection device for photographing the top surface of the main body, the bottom surface of the main body and the side surface of the main body to obtain a main body top surface image, a main body bottom surface image and a main body side surface image;

[0006] a tab detection device comprising a tab misalignment detection mechanism and a tab surface detection mechanism, the tab misalignment detection mechanism being configured to obtain a tab misalignment image, and the tab surface detection mechanism being configured to photograph the side surface and the end surface of the tab to obtain a tab side surface image and a tab end surface image;

[0007] a conveying device for driving the bare cell to pass through the main body detection device and the tab detection device, respectively.

[0008] According to the bare battery cell detection device, the bare battery cells located at the previous workstations are moved to the tab misalignment detection mechanism, the tab surface detection mechanism and the main body detection device by the conveying and carrying device, the top surface, the side surface and the end surface of the tab and the top surface, the bottom surface and the side surface of the main body are photographed, the corresponding tab misalignment image, tab side surface image and tab end surface image, main body top surface image, main body bottom surface image and main body side surface image are obtained, and the detection results of the bare battery cells are generated by identification and analysis of the upper computer, the main body and the tab of the bare battery cell are comprehensively detected in an automatic manner, subjective judgment errors and fatigue factors in manual detection are reduced, the detection efficiency is improved, the accuracy of the detection results is improved, and the production cost is reduced.

[0009] According to an embodiment of the present application, the bare battery cell detection device has a plurality of detection workstations, and the conveying and carrying device comprises:

[0010] a conveying mechanism, at least part of the plurality of detection workstations is located on an upper conveying line of the conveying mechanism;

[0011] a carrying mechanism, forming a clamping space for clamping the bare battery cell, for driving the bare battery cell to approach or move away from the detection workstations located at the end of the upper conveying line.

[0012] According to an embodiment of the present application, the plurality of detection workstations comprises a first detection workstation and a second detection workstation, the first detection workstation is located on the upper conveying line, and the second detection workstation is located outside the upper conveying line and is arranged close to the end of the upper conveying line, and the main body detection device comprises:

[0013] a first main body detection mechanism located at the first detection workstation for obtaining the main body top surface image;

[0014] a moving mechanism, a fixed end of the moving mechanism is arranged on a conveying rack of the conveying mechanism, an output end of the moving mechanism is connected with the first main body detection mechanism, and the moving mechanism is used for driving the first main body detection mechanism to move along a direction perpendicular to the conveying direction of the upper conveying line;

[0015] a second main body detection mechanism arranged on the conveying rack and located at the second detection workstation, for obtaining the main body bottom surface image, and the carrying mechanism is used for driving the bare battery cell to approach or move away from the upper conveying line from the second detection workstation;

[0016] a third main body detection mechanism arranged on the conveying rack and located at the second detection workstation, for obtaining the main body side surface image.

[0017] According to an embodiment of the present application, the first main body detection mechanism and the second main body detection mechanism both comprise:

[0018] an inspection rack having a plurality of first mounting positions, a plurality of second mounting positions, and a plurality of third mounting positions;

[0019] a first light source mounted at one of the plurality of first mounting positions;

[0020] two second light sources mounted at two of the plurality of second mounting positions, and the first light source and the two second light sources each emit light rays that converge on a straight line;

[0021] a first camera assembly mounted at one of the plurality of third mounting positions, the first light source being located between the first camera assembly and the main body.

[0022] According to one embodiment of the present application, the plurality of inspection stations further comprises a third inspection station and a fourth inspection station, the third inspection station being located on the upper conveying line, the fourth inspection station being located outside the upper conveying line and on a side of the second inspection station away from the upper conveying line, the tab misalignment detection mechanism being located at the fourth inspection station, and the tab surface detection mechanism being arranged on the conveying rack and at the third inspection station.

[0023] According to one embodiment of the present application, the conveying mechanism comprises:

[0024] a conveying rack;

[0025] a circulating conveying line mounted on the conveying rack, and the circulating conveying line being connected at its head and tail;

[0026] a plurality of carriers movably arranged on the circulating conveying line, and the carriers being used to carry the bare battery cells.

[0027] According to one embodiment of the present application, the carrier comprises:

[0028] a base movably arranged on the circulating conveying line;

[0029] a mounting member arranged on the base and used to carry the main body;

[0030] at least one pair of movable members movably arranged on the base and having a first state and a second state, the movable members being disengaged from the main body in the first state, and the movable members being in elastic abutting engagement with the top surface of the main body in the second state.

[0031] According to one embodiment of the present application, the conveying mechanism comprises:

[0032] a gripper assembly having a clamping state for clamping bare battery cells of multiple sizes;

[0033] A carrying driving assembly is connected with the gripper assembly and used to drive the gripper assembly to move in the up-down direction and in the width direction of the bare battery cell;

[0034] A limiting assembly is arranged between the carrying driving assembly and the gripper assembly and used to limit the moving range of the gripper assembly.

[0035] According to an embodiment of the present application, the bare battery cell is provided with a second two-dimensional code, and the tab misalignment detection mechanism comprises:

[0036] A jig is used to carry the bare battery cell;

[0037] A second camera assembly is arranged above the jig;

[0038] A third light source is arranged below the tab on the jig;

[0039] A second code scanner is arranged above the jig and used to scan and identify the second two-dimensional code of the bare battery cell placed in the jig.

[0040] According to an embodiment of the present application, the tab surface detection mechanism comprises:

[0041] Two oppositely arranged tab side surface detection structures are used to respectively shoot the two side surfaces of the tab oppositely arranged in the width direction of the bare battery cell;

[0042] Two oppositely arranged tab end surface detection structures are used to shoot the end surface of the tab away from the main body.

[0043] According to an embodiment of the present application, the tab side surface detection structure comprises:

[0044] A mounting rack;

[0045] Two oppositely arranged first imaging assemblies are arranged on the mounting rack and can be adjusted in the length direction of the bare battery cell.

[0046] According to an embodiment of the present application, the first imaging assembly comprises:

[0047] A first connecting member is arranged on the mounting rack and can be adjusted in the length direction of the bare battery cell;

[0048] A prism is arranged on the first connecting member, and the prism can be adjusted in the width direction of the bare battery cell and the angle between the prism and the bare battery cell can be adjusted;

[0049] A first imaging unit is arranged on the mounting rack and can be adjusted in the length direction of the bare battery cell.

[0050] Two fourth light sources respectively located on both sides of the bare battery cell along the up-down direction, two fourth light sources are respectively arranged on the mounting frame and the first connecting piece, and the mounting position and the angle position of the fourth light source are adjustable.

[0051] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0052] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0053] Figure 1 is one of the structural schematic diagram of the bare battery cell detection equipment provided by the embodiment of the present application;

[0054] Figure 2 is the second structural schematic diagram of the bare battery cell detection equipment provided by the embodiment of the present application;

[0055] Figure 3 is the structural schematic diagram of the conveying mechanism provided by the embodiment of the present application;

[0056] Figure 4 is Figure 3 is the partial enlarged view of A in FIG. 8;

[0057] Figure 5 is one of the structural schematic diagram of the carrier provided by the embodiment of the present application;

[0058] Figure 6 is the second structural schematic diagram of the carrier provided by the embodiment of the present application;

[0059] Figure 7 is one of the structural schematic diagram of the conveying mechanism provided by the embodiment of the present application;

[0060] Figure 8 is the second structural schematic diagram of the conveying mechanism provided by the embodiment of the present application;

[0061] Figure 9 is the structural schematic diagram of the conveying mechanism provided by the embodiment of the present application;

[0062] Figure 10 is the structural schematic diagram of the first main body detection mechanism provided by the embodiment of the present application;

[0063] Figure 11 is the structural schematic diagram of the first main body detection mechanism provided by the embodiment of the present application;

[0064] Figure 12FIG. 1 is a structural schematic diagram of a tab misalignment detection mechanism provided by an embodiment of the present application;

[0065] Figure 13 FIG. 2 is a structural schematic diagram of a tab side surface detection structure provided by an embodiment of the present application;

[0066] Figure 14 FIG. 3 is a structural schematic diagram of another tab side surface detection structure provided by an embodiment of the present application;

[0067] Figure 15 FIG. 4 is a structural schematic diagram of a tab end surface detection structure provided by an embodiment of the present application.

[0068] Reference signs:

[0069] 110a, first body detection mechanism; 110b, second body detection mechanism;

[0070] 111, detection rack; 1111, first sliding groove; 1112, second sliding groove; 1113, third sliding groove; 1114, fourth sliding groove; 1115, fifth sliding groove;

[0071] 112, first light source; 113, second light source; 1131, first rotating shaft; 114, first camera assembly; 115, first fixing member;

[0072] 116, first positioning member; 117, second fixing member; 118, protective cover; 119, dust removal structure;

[0073] 120, moving mechanism;

[0074] 131, third camera assembly;

[0075] 200, tab misalignment detection mechanism;

[0076] 210, jig; 220, second camera assembly; 230, second code scanner;

[0077] 310, tab side surface detection structure;

[0078] 311, mounting rack; 312, first imaging assembly;

[0079] 3121, first connecting member; 3122, prism; 3123, first imaging unit; 3124, fourth light source;

[0080] 320, tab end surface detection structure;

[0081] 321, fixing rack;

[0082] 3221, second connecting member; 3222, second imaging unit; 3223, fifth light source;

[0083] 400, conveying mechanism;

[0084] 410, conveying frame;

[0085] 421, upper layer support; 422, first slide rail; 423, coupling member; 424, conveying driving member; 425, first limiting member; 4261, roller;

[0086] 431, lower layer support; 432, second slide rail; 433, conveyor belt assembly; 434, poking member; 435, buffer positioning member;

[0087] 440, lifting structure; 441, lifting support; 442, third slide rail;

[0088] 450, carrier;

[0089] 451, base;

[0090] 4521, mounting block; 45212, second groove;

[0091] 4522, adjusting block; 4523, limiting portion; 4524, lengthening block;

[0092] 453, movable member; 454, first reinforcing plate; 455, second reinforcing plate; 456, rotating driving member;

[0093] 460, conveying sliding block; 470, first sensing member; 480, first proximity sensor; 490, first code scanner;

[0094] 500, carrying mechanism;

[0095] 510, carrying driving assembly; 511, first linear driving portion;

[0096] 5121, connecting seat; 51211, through slot;

[0097] 5122, cooperating member; 5123, driver;

[0098] 520, clamping jaw assembly;

[0099] 521, clamping jaw mounting seat; 5211, fourth slide rail; 522, clamping jaw connecting member; 5221, third connecting hole;

[0100] 523, clamping member; 5231, vertical section; 5232, horizontal section;

[0101] 524, in-service laser sensor;

[0102] 531, first limiting member; 532, second limiting member; 5321, first connecting section; 5322, second connecting section; 5323, third connecting section;

[0103] 533, second inductive element; 534, second proximity sensor;

[0104] 900, bare cell. DETAILED DESCRIPTION

[0105] Embodiments of the present application are described below in detail with reference to the accompanying drawings, in which the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary only, and are for the purpose of explanation of the present application, and are not to be understood as limiting the present application.

[0106] Reference is made below to Figures 1-15 The bare cell detection device provided by the embodiments of the present application is described, which is used for detecting a bare cell 900.

[0107] It should be noted that the bare cell 900 includes a main body and a plurality of tabs extending from the side of the main body. That is, the bare cell 900 generally refers to a cell unit before the battery is packaged, which is composed of a positive tab, a negative tab and a separator film, and mainly relies on the movement of metal ions between the positive tab and the negative tab to work. The positive tab includes a positive current collector and a positive active material layer, the positive current collector includes a positive current collector body and a positive tab, the positive active material layer is coated on the surface of the positive current collector body, and the positive tab is not coated with the positive active material layer and protrudes from the positive current collector body. Taking a lithium ion battery as an example, the material of the positive current collector can be aluminum, and the positive active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate, etc. The negative tab includes a negative current collector and a negative active material layer, the negative current collector includes a negative current collector body and a negative tab, the negative active material layer is coated on the surface of the negative current collector body, and the negative tab is not coated with the negative active material layer and protrudes from the negative current collector body. The material of the negative current collector can be copper, and the negative active material can be carbon or silicon, etc. In order to ensure that no fusing occurs when passing a large current, the number of positive tabs is multiple and stacked together, and the number of negative tabs is multiple and stacked together. That is, the main body includes a positive current collector body and a negative current collector body, and the tabs include positive tabs and negative tabs. The material of the separator film can be PP (polypropylene) or PE (polyethylene), etc. In addition, the cell unit can be a winding type structure or a laminated type structure, and the embodiments of the present application are not limited thereto.

[0108] The bare cell detection equipment includes a main body detection device, a tab detection device, and a conveying and carrying device. The main body detection device is configured to capture a top surface of the main body, a bottom surface of the main body, and a side surface of the main body to obtain a main body top surface image, a main body bottom surface image, and a main body side surface image. The tab detection device includes a tab misalignment detection mechanism 200 and a tab surface detection mechanism. The tab misalignment detection mechanism 200 is configured to obtain a tab misalignment image. The tab surface detection mechanism is configured to capture a side surface and an end surface of the tab to obtain a tab side surface image and a tab end surface image. The conveying and carrying device is configured to drive the bare cell 900 to pass through the main body detection device and the tab detection device, respectively.

[0109] It can be understood that the bare cell 900 located at the previous sequence station is moved to the tab misalignment detection mechanism 200, the tab surface detection mechanism, and the main body detection device by the conveying and carrying device to capture the top surface, the side surface, and the end surface of the tab and the top surface, the bottom surface, and the side surface of the main body, thereby obtaining the corresponding tab misalignment image, the tab side surface image, and the tab end surface image, the main body top surface image, the main body bottom surface image, and the main body side surface image. The host computer is used for identification and analysis, so that the detection result of the bare cell 900 can be generated, the main body and the tab of the bare cell 900 are comprehensively detected in an automatic manner, subjective judgment errors and fatigue factors that may occur in manual detection are reduced, the detection efficiency is improved, the accuracy of the detection result is improved, and the production cost is reduced.

[0110] It should be noted that the host computer can be a device including a processor and a memory storing computer program instructions. The computer program instructions can be a neural network model for identifying images or instructions for performing logical operations on image data. The processor can include a central processing unit or a specific integrated circuit or one or more integrated circuits configured to implement the embodiments of the present application. The memory can include a large-capacity memory for information or instructions. Alternatively, the memory can be internal or external to the host computer. The processor identifies the tab misalignment image, the tab side surface image, and the tab end surface image, the main body top surface image, the main body bottom surface image, and the main body side surface image by reading and executing the computer program instructions stored in the memory, and obtains the surface detection result of the bare cell 900.

[0111] According to the bare cell detection equipment provided in the embodiments of the present application, the main body detection device, the tab detection device, and the conveying and carrying device are provided, the main body and the tab of the bare cell 900 are comprehensively detected in an automatic manner, subjective judgment errors and fatigue factors that may occur in manual detection are reduced, the detection efficiency is improved, the accuracy of the detection result is improved, and the production cost is reduced.

[0112] In some embodiments, as Figures 1 to 3 , Figure 7 and Figure 8As shown, the bare cell detection device has multiple detection stations, the conveying and carrying device includes a conveying mechanism 400 and a carrying mechanism 500, and at least part of the multiple detection stations is located on the conveying mechanism 400; the carrying mechanism 500 forms a clamping space for clamping the bare cell 900, and is used to drive the bare cell 900 to approach or move away from at least part of the multiple detection stations. It should be noted that the number and specific distribution of the detection stations can be designed according to actual needs, and the present embodiment does not make specific limitations thereto.

[0113] It can be understood that the main body detection device, the tab misalignment detection mechanism 200 and the tab surface detection mechanism are respectively arranged on different detection stations, and at least part of the detection stations is located on the conveying mechanism 400, so that the detection can be more efficient, and the carrying mechanism 500 is used to clamp the bare cell 900 to move from the previous process to the detection station not arranged on the conveying mechanism 400, and to the detection station on the conveying mechanism 400, and to move the detected bare cell 900 to the subsequent process, realizing the full automation of the bare cell 900 detection and minimizing the manual operation.

[0114] In some embodiments, as shown in Figures 1 to 3 The conveying mechanism 400 includes a conveying rack 410, a circulating conveying line and multiple carriers 450, the circulating conveying line is installed on the conveying rack 410, and the circulating conveying line is connected at its head and tail, the carrier 450 is movably arranged on the circulating conveying line, and the carrier 450 is used to carry the bare cell 900. That is, by arranging the circulating conveying line and cooperating with the multiple carriers 450, a circulating conveying of the carrier 450 and a full and efficient detection mode of the bare cell 900 are formed, the flexibility and efficiency of the whole conveying process are increased, and the automation degree is improved.

[0115] In some embodiments, as shown in Figures 1 to 3 The circulating conveying line includes an upper conveying line, a lower conveying line and two lifting structures 440, the upper conveying line and the lower conveying line are arranged on the conveying rack 410, and the conveying direction of the lower conveying line is opposite to that of the upper conveying line; the two lifting structures 440 are respectively located on both sides of the lower conveying line, the fixed end of the lifting structure 440 is arranged on the conveying rack 410, and the movable end of the lifting structure 440 is selectively connected with one of the lower conveying line or the upper conveying line; the carrier 450 is movably arranged on one of the lower conveying line, the upper conveying line and the lifting structure 440. It should be noted that the conveying mechanism has a double-layer structure, that is, the upper conveying line is located on the upper layer of the rack, and the lower conveying line is located on the lower layer of the rack.

[0116] It can be understood that the upper conveying line is located on the upper layer of the lower conveying line, at least part of the plurality of detection stations is located on the upper conveying line, the carrying mechanism 500 drives the bare battery cell 900 to approach or move away from the detection station located at the end of the upper conveying line, and the conveying directions of the lower conveying line and the upper conveying line are opposite, and in addition, the two lifting structures 440 are respectively located on both sides of the lower conveying line and can be respectively connected with the upper conveying line or the lower conveying line, thereby forming a circulating conveying of the carrier 450 and a full and efficient detection mode of the bare battery cell 900, increasing the flexibility and efficiency of the whole conveying process, and improving the automation degree. At the same time, the upper conveying line and the lower conveying line ingeniously utilize the vertical space, thereby improving the rapid transfer and shunting of the carrier 450 without increasing the floor area, reducing the waiting time and transfer times of the bare battery cell 900 in the detection process, and improving the production efficiency.

[0117] In some embodiments, as shown in Figure 3 and Figure 4 , the conveying directions of the upper conveying line and the lower conveying line are parallel to the width direction of the bare battery cell 900 located on the carrier 450, so as to further reduce the floor area and make the conveying mechanism 400 more compact.

[0118] In some embodiments, as shown in Figures 2 to 4 , the upper conveying line comprises an upper support 421, a coupling member 423 and a conveying driving member 424, the upper support 421 is arranged on the conveying rack 410, and the upper support 421 is provided with a first sliding rail 422 which is in sliding fit with the carrier 450; the coupling member 423 is detachably connected with the carrier 450 and is adapted to drive all the carriers 450 located on the first sliding rail 422 and the carrier 450 arranged on the lifting structure 440 to move synchronously; and the fixed end of the conveying driving member 424 is arranged on the conveying rack 410, and the driving end of the conveying driving member 424 is connected with the coupling member 423, so as to drive the coupling member 423 to reciprocate along the extension direction of the first sliding rail 422.

[0119] It can be understood that the carrier 450 can drive the bare battery cell 900 to slide on the first sliding rail 422, so as to realize switching among different detection stations. The coupling member 423 is connected with all the carriers 450 located on the first sliding rail 422 and the carrier 450 connected with the upper conveying line on the lifting structure 440, so as to ensure that the plurality of bare battery cells 900 can be simultaneously and synchronously detected in different detection stations while reducing the interference between the bare battery cells 900, and ensure the coordination and consistency of the carrier 450 in the conveying process, and improve the accuracy and efficiency of the detection and the conveying efficiency.

[0120] In addition, when the lifting structure 440 at the first end is connected to the upper conveyor line, the connecting member 423 connects the carrier 450 on the first slide rail 422 and the carrier 450 on the lifting structure 440. Thus, the carrier 450 on the lifting structure 440 is transferred to the first slide rail 422 by the conveying drive member 424, so that the bare battery cells 900 on the carrier 450 pass through each inspection station one by one. When the lifting structure 440 at the second end is connected to the upper conveyor line, the connecting member 423 connects the carrier 450 on the first slide rail 422. Thus, the carrier 450 on the first slide rail 422 is transferred to the lifting structure 440 by the conveying drive member 424. Since the bare battery cells 900 on the carrier 450 have been inspected, the transport mechanism 500 can grab the bare battery cells 900 and transfer them to the subsequent station. The lifting structure 440 drives the carrier 450 to move downward until it is connected to the lower conveyor line.

[0121] In some embodiments, such as Figure 3 As shown, a conveying slider 460 is provided at the bottom of the carrier 450. The conveying slider 460 slides in cooperation with the first slide rail 422, thereby driving the carrier 450 to move on the first slide rail 422. Exemplarily, the conveying drive component 424 includes, but is not limited to, a ball screw direct-drive mechanism, which achieves linear motion by means of a servo motor, a ball screw and a cooperating linear guide rail. This is a common technical means used by those skilled in the art and will not be described in detail here.

[0122] In some embodiments, such as Figures 4 to 6 As shown, a first limiting member 425 is provided on the carrier 450, and the upper conveyor line also includes multiple second limiting members and a positioning drive member. The second limiting member is provided on the connecting member 423; the fixed end of the positioning drive member is provided on the driving end of the conveying drive member 424, and the driving end of the positioning drive member is connected to the connecting member 423, which is used to drive the connecting member 423 to move in the up and down direction so that the first limiting member 425 and the second limiting member abut or disengage.

[0123] It is understandable that by using the cooperation of the first limiting member 425 and the second limiting member, and by driving the connecting member 423 to move up and down through the positioning drive member, the first limiting member 425 of the carrier 450 cooperates with different second limiting members during the movement, thereby achieving precise positioning and release of the carrier 450, ensuring the precise alignment of the bare cell 900 during the testing process, and improving the automation, efficiency and safety of the testing process.

[0124] In some embodiments, such as Figure 4 As shown, the second limiting member includes two spaced rollers 4261, which are disposed on the connecting member 423. The two rollers 4261 are adapted to roll into contact with the two sides of the first limiting member 425 that are disposed opposite to each other along the extension direction of the first slide rail 422.

[0125] It can be understood that the two rollers 4261 are arranged at intervals along the extension direction of the first slide rail 422, and the rollers 4261 are located on the side of the coupling member 423 close to the upper layer support 421. By rolling cooperation of the rollers 4261 with the two side surfaces of the first limiting member 425, not only can the stable guidance and positioning of the carrier 450 on the first slide rail 422 be realized, but also the rolling friction is used to replace the sliding friction, so as to reduce the possibility of wear and jamming, and improve the smoothness and reliability of the use of the upper layer conveying line.

[0126] In some embodiments, as shown in Figure 2 and Figure 3 , the lower layer conveying line includes a lower layer support 431, a conveyor belt assembly 433 and a plurality of spaced-apart poking members 434. The lower layer support 431 is arranged on the conveying rack 410, and the second slide rail 432 which is in sliding cooperation with the carrier 450 is arranged on the lower layer support 431. The conveyor belt assembly 433 is arranged on the conveying rack 410 and located on one side of the lower layer support 431. The conveyor belt assembly 433 includes a conveyor belt and a conveyor belt driving member for driving the movement of the conveyor belt. The length direction of the conveyor belt is parallel to the extension direction of the second slide rail 432, and the two ends of the conveyor belt along the length direction protrude from the two ends of the second slide rail 432. The poking members 434 are arranged on the conveyor belt and are in abutting cooperation with the carrier 450 on the second slide rail 432, so as to drive the carrier 450 to approach or move away from the lifting structure 440 under the action of the conveyor belt driving member.

[0127] It can be understood that the second slide rail 432 is located directly below the first slide rail 422, and the extension direction of the second slide rail 432 is parallel to the extension direction of the first slide rail 422. The carrier 450 is in sliding cooperation with the second slide rail 432 through the conveying slide block 460, and the length direction of the conveyor belt is parallel to the extension direction of the second slide rail 432, and the two ends of the conveyor belt along the length direction protrude from the two ends of the second slide rail 432. This can ensure that the conveyor belt can cover the entire length of the second slide rail 432 when moving, so as to effectively drive the carrier 450 to move on the second slide rail 432 to approach or move away from the lifting structure 440 through the poking members 434, thereby realizing efficient and accurate conveying of the carrier 450 on the second slide rail 432, reducing wear and energy loss, and improving the automation level and operation efficiency of the entire conveying mechanism 400.

[0128] In some embodiments, as shown in Figure 2As shown, the lower conveying line further comprises a buffer positioning member 435, which comprises a jacking drive and a buffer portion. The fixed end of the jacking drive is arranged on the lower support 431, and the output end of the jacking drive is connected with the buffer portion, for driving the buffer portion to move along the up-down direction to approach or move away from the carrier 450, thereby adjusting the pace of the carrier 450 moving from the second slide rail 432 to the lifting structure 440 located downstream of the conveying belt. The jacking drive comprises but is not limited to a linear cylinder. It should be noted that the number and specific distribution of the buffer positioning member 435 can be designed according to actual needs, and the present embodiment does not make specific limitations thereto.

[0129] It can be understood that the buffer positioning member 435 is arranged on the side of the lower support 431 away from the conveying belt, and close to the end of the lower support 431. When the lifting structure 440 close to the downstream of the conveying belt and the upper conveying line are connected, the buffer portion is moved upward by the jacking drive and abuts with the carrier 450, thereby triggering the conveying belt to pause until the lifting structure and the upper conveying line are disconnected and connected with the lower conveying line. The buffer portion is moved downward by the jacking drive and is disengaged from the carrier 450, and the conveying belt is restarted, so as to smoothly dock the carrier 450 with the lifting structure 440, thereby providing additional safety protection, reducing downtime caused by adjusting the position of the carrier 450, and improving the operation efficiency of the entire detection equipment.

[0130] In some embodiments, as shown in Figure 3 The lifting structure 440 comprises a lifting support 441 and a lifting drive. The lifting support 441 is provided with a third slide rail 442 which is in sliding cooperation with the carrier 450. The fixed end of the lifting drive is arranged on the conveying frame 410, and the driving end of the lifting drive is connected with the lifting support 441, for driving the lifting support 441 to move along the up-down direction to make the third slide rail 442 in splicing cooperation with one of the first slide rail 422 and the second slide rail 432, and disengaged from the other one of the first slide rail 422 and the second slide rail 432.

[0131] It can be understood that the carrier 450 is matched with the conveying slider 460 and the third slide rail 442, the extension direction of the third slide rail 442 is parallel to the extension direction of the first slide rail 422, when the third slide rail 442 is driven upward by the lifting driver to splice with the first slide rail 422, so that the carrier 450 at the end of the first slide rail 422 is slid into the third slide rail 442 through the coupling member 423, or the carrier 450 on the third slide rail 442 is slid into the first slide rail 422 through the coupling member 423; similarly, when the third slide rail 442 is driven downward by the lifting driver to splice with the second slide rail, so that the carrier 450 at the end of the second slide rail 432 is slid into the third slide rail 442 through the pushing member 434, or the carrier 450 on the third slide rail 442 is slid into the second slide rail 432 through the pushing member 434, so as to realize the automatic docking of the carrier 450 between the upper conveying line and the lower conveying line, ensure the stability and safety during the transfer of the carrier 450, and improve the conveying efficiency.

[0132] In some embodiments, as shown in Figure 2 The conveying mechanism 400 further includes a plurality of first sensing members 470 and a plurality of first proximity sensors 480, the first sensing members 470 correspond to the carriers 450 one by one and are connected; the upper conveying line, the lower conveying line and the lifting structure 440 are all provided with the first proximity sensors 480, which are used to sense whether the corresponding carrier 450 is in place according to the first sensing members 470. Exemplarily, the first proximity sensors 480 can be electromagnetic, photoelectric, ultrasonic or other types of sensors, which can sense the presence of the first sensing members 470 and send a position signal to the upper computer.

[0133] It can be understood that each carrier 450 is provided with a corresponding first sensing member 470, so as to send a signal to the closest first proximity sensor 480 when it moves to each detection station of the upper conveying line, the end of the lower conveying line and the third slide rail 442, so that the upper computer can accurately and timely monitor the position of the carrier 450, which can reduce the downtime caused by waiting for the carrier 450 to be in place, improve the production efficiency, help to avoid the collision between the carriers 450, reduce the dependence on manual monitoring, reduce the possibility of human operation errors, optimize the conveying and detection process, improve the overall production efficiency, and realize more intelligent and automated detection operation.

[0134] In some embodiments, as shown in Figure 3 The carrier 450 is provided with a first two-dimensional code; the conveying mechanism 400 further includes a first code scanner 490, which is arranged near the end of the upper conveying line and is in communication connection with the first proximity sensor 480, and is used to scan and identify the first two-dimensional code on the carrier 450 in place.

[0135] It can be understood that a unique first two-dimensional code is arranged on each carrier 450, which contains information related to the carrier 450, such as the carrier 450 number and type. The first code scanner 490 is located on the outer side of the upper conveying line and is higher than the lifting support 441. The code scanning operation is automatically triggered when the first proximity sensor 480 detects that the carrier 450 is in place, realizing automatic identification and information reading of the carrier 450 without manual intervention, providing an accurate data input method, reducing the dependence on manual operation, reducing the risk of human operation error, improving the response speed and accuracy of the entire conveying mechanism 400, and also realizing monitoring and detection of the current detection state of the bare battery cell 900 carried by the carrier 450.

[0136] In the embodiment, as shown in Figure 3 , the first code scanner 490 is arranged on one of the lifting supports 441.

[0137] In some embodiments, as shown in Figure 5 and Figure 6 , the carrier 450 includes a base 451, a mounting member, and at least one pair of movable members 453. The base 451 is movably arranged on the circulating conveying line. The mounting member is arranged on the base 451 and is used to carry the main body. The movable member 453 is movably arranged on the base 451 and has a first state and a second state. When the movable member 453 is in the first state, it is disengaged from the main body. When the movable member 453 is in the second state, it is in elastic abutting engagement with the top surface of the main body.

[0138] It can be understood that the bottom surface of the base 451 is provided with a conveying slider 460, and the part of the top surface of the base 451 outside the mounting member is provided with a first two-dimensional code. That is, when the movable member 453 is in the first state and disengaged from the main body, it is convenient for the bare battery cell 900 in the detection station to be detected, reducing the influence of the movable member 453 on the normal detection of the bare battery cell 900. When the movable member 453 is in the second state and in abutting engagement with the top surface of the main body, the stability of the bare battery cell 900 during the conveying process on the upper conveying line is ensured, and the safety risk caused by the movement, inclination or disengagement of the bare battery cell 900 from the mounting member is reduced. In addition, the movable member 453 can be in elastic abutting engagement with the main body, so as to automatically adjust according to the different size requirements of the bare battery cell 900, while reducing the hard contact and friction between the two, reducing the possibility of damage to the surface of the bare battery cell 900, and improving the detection pass rate.

[0139] In some embodiments, as shown in Figure 5 and Figure 6As shown, the mounting member includes a mounting block 4521 and two adjusting blocks 4522, the mounting block 4521 is arranged on the base 451, the mounting block 4521 forms a first groove and two second grooves 45212, the first groove penetrates the surface of the mounting block 4521 along the length direction of the bare battery cell 900, the groove bottom of the first groove at least partially abuts with the bottom surface of the main body, the second groove 45212 penetrates the surface of the mounting block 4521 along the up-down direction, the two second grooves 45212 are oppositely arranged and the groove openings of the two second grooves 45212 are oppositely arranged; the two adjusting blocks 4522 correspond to the second grooves 45212 one by one, the adjusting block 4522 is adjustably arranged in the second groove 45212 along the installation position of the width direction of the bare battery cell 900. It should be noted that the shape and size of the first groove and the second groove 45212 can be designed according to actual needs, and this embodiment does not make specific limitations.

[0140] It can be understood that the main body is placed in the first groove and penetrates the mounting block 4521 along the length direction by using the first groove, so as to realize that the mounting member carries the bare battery cell 900 while avoiding the tab of the bare battery cell 900 of different lengths; the two second grooves 45212 are respectively located on both sides of the mounting block 4521 arranged along the width direction of the bare battery cell 900, so that the mounting block 4521 is in the shape of an I-beam. At the same time, by adjustably arranging the two adjusting blocks 4522 in the second grooves 45212 along the installation position of the width direction of the bare battery cell 900, that is, the distance between the adjusting block 4522 and the groove bottom of the second groove 45212 is adjustable and suitable for abutting with the bare battery cell 900, thereby adapting to the bare battery cell 900 of different widths. The mounting member can adapt to the bare battery cell 900 of different sizes, ensuring that the bare battery cell 900 is stably placed on the mounting member, and improving the versatility and flexibility of the carrier 450.

[0141] In some embodiments, as shown in Figure 5 and Figure 6 The adjusting block 4522 and one of the base 451 are provided with a first connecting hole in the shape of a long strip, and the other of the adjusting block 4522 and the base 451 is provided with a plurality of second connecting holes, the second connecting holes are screwed with the first connecting hole, that is, the first connecting hole extends along the width direction of the bare battery cell 900, and the different second connecting holes and the first connecting hole are screwed, so as to realize the adjustment of the installation position of the adjusting block 4522 to adapt to the bare battery cell 900 of different widths, thereby improving the versatility and adaptability of the carrier 450.

[0142] In some embodiments, as shown in Figure 5 and Figure 6As shown, the adjusting block 4522 is provided with a limiting portion 4523 on the side away from the base 451, and the limiting portion 4523 is located on the side of the adjusting block 4522 close to the bottom of the corresponding second groove 45212; wherein the inner side wall of the first groove and the side surface of the main body are partially in abutment; and / or the two sides of the two limiting portions 4523 close to each other are in abutment with the side surface of the main body.

[0143] It can be understood that the top surface of the limiting portion 4523 is protruded from the top surface of the adjusting block 4522, and the limiting portion 4523 is located on the end of the adjusting block 4522 close to the middle of the mounting block 4521, so that when the bottom surface of the main body and the bottom of the first groove are in abutment, at least one of the inner side wall of the first groove and the side surface of the limiting portion 4523 can be in abutment with the side surface of the main body, thereby providing limiting of the bare cell 900 along the width direction thereof, ensuring accurate positioning of the bare cell 900 in the mounting member, reducing the possibility of displacement of the bare cell 900 during transportation and detection, and enhancing the stability of the bare cell 900 in the mounting member.

[0144] In some embodiments, as shown in Figure 5 and Figure 6 As shown, the mounting member further comprises a lengthening block 4524, and the lengthening block 4524 is arranged on the base 451 and located outside the mounting block 4521. The lengthening block 4524 forms a third groove in communication with the first groove, and the third groove penetrates through the surface of the lengthening block 4524 along the length direction of the bare cell 900. The bottom of the third groove is in partial abutment with the bottom surface of the main body, and the inner side wall of the third groove is adapted to be in partial abutment with the side surface of the main body. The connection mode between the lengthening block 4524 and the base 451 includes but is not limited to threaded connection or clamping, etc.

[0145] It can be understood that the lengthening block 4524 and the mounting block 4521 are spliced along the length direction of the bare cell 900, thereby increasing the contact area with the bare cell 900, so as to adapt to bare cells 900 of different lengths, and improve the versatility and adaptability of the carrier 450.

[0146] In this embodiment, as shown in Figure 5 and Figure 6 As shown, the lengthening block 4524 is provided with two lengthening blocks 4524, and the two lengthening blocks 4524 are connected with the two side surfaces of the mounting member respectively arranged opposite along the length direction of the bare cell 900.

[0147] In some embodiments, as shown in Figure 5 and Figure 6 As shown, the carrier 450 further comprises a first reinforcing plate 454, and the bottom surface of the first reinforcing plate 454 is connected with the bottom of the first groove and the bottom of the third groove respectively, and the top surface of the first reinforcing plate 454 is used to support the main body.

[0148] It can be understood that the first reinforcing plate 454 is arranged in the first groove and the third groove, that is, the main body is indirectly connected with the mounting block 4521 and the extension block 4524 through the reinforcing plate, the connection between the mounting block 4521 and the extension block is more stable by using the first reinforcing plate 454, the overall stability of the carrier 450 is enhanced, the carrier 450 can bear heavier load, and the stability of the bare battery cell 900 in the length direction is ensured.

[0149] In some embodiments, as shown in Figure 5 and Figure 6 The carrier 450 further comprises two second reinforcing plates 455, the second reinforcing plates 455 are arranged on the opposite sides of the base 451 along the length direction of the bare battery cell 900, and the second reinforcing plates 455 extend along the length direction of the bare battery cell 900 and abut against the bottom surface of the main body. Exemplarily, the second reinforcing plates 455 are L-shaped.

[0150] It can be understood that the two second reinforcing plates 455 are arranged on the opposite sides of the base 451 along the length direction of the bare battery cell 900, that is, the top surfaces of the second reinforcing plates 455 and the top surface of the first reinforcing plate 454 form a continuous plane, thereby providing additional support for the bare battery cell 900 and ensuring the stability of the bare battery cell 900 during transportation and detection.

[0151] In some embodiments, as shown in Figure 5 and Figure 6 The carrier 450 further comprises two elastic members and two rotary driving members 456, the elastic members and the rotary driving members 456 are one-to-one corresponding and connected, the fixed end of the rotary driving member 456 is installed on the base 451, and the output end of the rotary driving member 456 is connected with the corresponding movable member 453, for driving the movable member 453 to rotate around the up-down axis, so as to realize the switching of the movable member 453 between the first state and the second state.

[0152] In some embodiments, as shown in Figures 7 to 9 The conveying mechanism 500 comprises a gripper assembly 520, a conveying driving assembly 510 and a limiting assembly, the gripper assembly 520 has a clamping state for clamping bare battery cells 900 of various sizes; the output end of the conveying driving assembly 510 is connected with the gripper assembly 520, for driving the gripper assembly 520 to move in the up-down direction and in the width direction of the bare battery cell 900; and the limiting assembly is arranged between the conveying driving assembly 510 and the gripper assembly 520, for limiting the movement range of the gripper assembly 520.

[0153] It can be understood that the carrying driving assembly 510 drives the clamp jaw assembly 520 to move downward and close to the bare battery cell 900, at this time, the clamping space is enlarged so as to make the bare battery cell 900 enter the clamping space, and then the clamping space is adjusted to be small to fix the bare battery cell 900, and then the carrying driving assembly 510 drives the clamp jaw assembly 520 to move to the detection station, realizing the fast and accurate clamping and releasing action, improving the carrying efficiency, shortening the production cycle, reducing the demand for manual carrying, reducing the labor intensity and the risk of operation error. At the same time, the clamp jaw assembly 520 has a clamping state for clamping bare battery cells 900 of various sizes, that is, the size of the clamping space is adjustable, which can also adapt to bare battery cells 900 of different sizes, improving the versatility of the carrying mechanism 500. In addition, the limiting assembly is arranged between the carrying driving assembly 510 and the clamp jaw assembly 520, for limiting the movement range of the clamp jaw assembly 520, so as to ensure that the clamp jaw assembly 520 always moves within a safe and preset range, reducing the risk of damaging the carrying mechanism 500 and the bare battery cell 900.

[0154] In some embodiments, as shown in Figures 7 to 9 The clamp jaw assembly 520 includes a clamp jaw mounting seat 521, two oppositely arranged clamp jaw connecting pieces 522, and clamping pieces 523. The clamp jaw mounting seat 521 is connected to the output end of the carrying driving assembly 510. The clamp jaw connecting pieces 522 are arranged on the clamp jaw mounting seat 521, and the distance between the two clamp jaw connecting pieces 522 along the width direction of the bare battery cell 900 is adjustable. At least one clamping piece 523 is arranged on each clamp jaw connecting piece 522, and the clamping space is formed between all the clamping pieces 523. The installation position of the clamping piece 523 along the length direction of the bare battery cell 900 is adjustable.

[0155] It can be understood that the distance between the two clamp jaw connecting pieces 522 along the width direction of the bare battery cell 900 is adjustable, so as to change the distance between the corresponding clamping pieces 523 of the two clamp jaw connecting pieces 522 along the width direction of the bare battery cell 900, so as to adapt to bare battery cells 900 of different widths. The installation position of the clamping piece 523 on the corresponding clamp jaw connecting piece 522 along the length direction of the bare battery cell 900 is adjustable, so as to adapt to bare battery cells 900 of different widths, so as to realize the adjustable size of the clamping space, and then accurately clamp the bare battery cell 900, reducing the vibration and movement of the bare battery cell 900 in the carrying process.

[0156] In some embodiments, as shown in Figure 7 and Figure 9As shown, the bottom surface of the clamping jaw mounting seat 521 is provided with a fourth sliding rail 5211 extending along the width direction of the bare battery cell 900, and the top surface of the clamping jaw connecting piece 522 is provided with a matching sliding block matched with the fourth sliding rail 5211, so that the clamping jaw connecting piece 522 is movably arranged in the clamping jaw mounting seat 521 along the width direction of the bare battery cell 900, and the width adjustment between the two clamping jaw connecting pieces 522 is realized.

[0157] In some embodiments, as shown in Figures 7 to 9 As shown, one of the clamping jaw connecting piece 522 and the clamping piece 523 is provided with a third connecting hole 5221 in a strip shape, and the other is provided with a plurality of fourth connecting holes, and the third connecting hole 5221 and the fourth connecting hole are screwed, that is, the third connecting hole 5221 extends along the length direction of the bare battery cell 900, and different fourth connecting holes and third connecting holes 5221 are screwed, so as to realize the adjustment of the installation position of the clamping piece 523 to adapt to bare battery cells 900 of different lengths, and improve the versatility and adaptability of the clamping jaw assembly 520.

[0158] In this embodiment, the third connecting hole 5221 is arranged on the clamping jaw connecting piece 522, and the third connecting hole 5221 is arranged on the clamping piece 523. It should be noted that the number and specific distribution of the third connecting hole 5221 and the fourth connecting hole can be designed according to actual needs, and this embodiment does not make specific limitations.

[0159] In some embodiments, as shown in Figures 7 to 9 As shown, the clamping piece 523 is arranged on the side where the two clamping jaw connecting pieces 522 are close to each other, and the adjusting scale line extending along the length direction of the bare battery cell 900 is arranged on the side where the two clamping jaw connecting pieces 522 are away from each other.

[0160] It can be understood that the third connecting hole 5221 is provided with an adjusting scale line extending along the length direction of the bare battery cell 900, which facilitates quick and accurate adjustment of the clamping piece 523 according to the size of the bare battery cell 900, improves the convenience and accuracy of operation, and helps to improve the carrying efficiency.

[0161] In some embodiments, as shown in Figures 7 to 9 As shown, a plurality of clamping pieces 523 are arranged, and the plurality of clamping pieces 523 are arranged at intervals along the length direction of the bare battery cell 900, so as to increase the contact area with the bare battery cell 900, so as to ensure that the bare battery cell 900 is uniformly supported in the length direction, reduce the local pressure on the bare battery cell 900, and enhance the stability of the bare battery cell 900 during carrying. Exemplarily, four clamping pieces 523 are arranged on each clamping jaw connecting piece 522.

[0162] In some embodiments, as shown in Figure 9As shown, the clamping piece 523 includes a vertical segment 5231 and a horizontal segment 5232, the upper end of the vertical segment 5231 is connected with the clamping jaw connector 522, and is adapted to abut with the bare battery cell 900; one end of the horizontal segment 5232 is connected with the lower end of the vertical segment 5231, and extends along the width direction of the bare battery cell 900, and is used for supporting the bare battery cell 900.

[0163] It can be understood that the upper end of the vertical segment 5231 is connected with the clamping jaw connector 522, and the lower end is connected with the horizontal segment 5232, that is, the clamping piece 523 is L-shaped, so that the vertical segment 5231 and the side surface of the main body abut, and the horizontal segment 5232 and the bottom surface of the main body abut, thereby providing stable lateral support and vertical support, and reducing the risk of physical damage of the bare battery cell 900.

[0164] In some embodiments, as shown in Figures 7 to 9 The bottom of the clamping piece 523 is provided with a rubber coating layer, that is, the top surface of the horizontal segment 5232 and the lower part of the vertical segment 5231 are both provided with a rubber coating layer. By using the characteristics of good elasticity and friction coefficient of the rubber coating layer, the friction between the clamping piece 523 and the bare battery cell 900 can be enhanced, the clamping stability can be improved, the bare battery cell 900 can be protected, the damage and maintenance cost can be reduced, and the overall production efficiency and product quality can be improved.

[0165] In some embodiments, as shown in Figures 7 to 9 The clamping jaw assembly 520 further includes an in-situ laser sensor 524, the in-situ laser sensor 524 includes a laser emitter and a laser receiver, and the laser emitter and the laser receiver are respectively arranged outside the two clamping pieces 523 corresponding to the two clamping jaw connectors 522.

[0166] It can be understood that the laser emitter is responsible for emitting a laser beam for detecting or measuring the distance between the laser emitter and the bare battery cell 900, so as to ensure the accuracy of the clamping position. The laser receiver is used to receive the laser beam emitted from the laser emitter and reflected back by the bare battery cell 900. Through real-time monitoring of the in-situ laser sensor 524, it can be accurately judged whether the bare battery cell 900 is clamped, the possibility of excessive clamping or incorrect clamping is reduced, the stability and safety of the bare battery cell 900 during the conveying process are ensured, and the production efficiency and the convenience of operation are improved.

[0167] In some embodiments, as shown in Figure 7 and Figure 8As shown, the carrying driving assembly 510 includes a first linear driving part 511 and a second linear driving part, the fixed end of the second linear driving part is connected with the output end of the first linear driving part 511, the first linear driving part 511 is used to drive the second linear driving part to move in the up-down direction, the output end of the second linear driving part is connected with the jaw mounting seat 521 of the jaw assembly 520, and the second linear driving part is used to drive the jaw mounting seat 521 to move in the width direction of the bare cell 900. Exemplarily, the first linear driving part 511 includes but is not limited to a linear motor guide rail.

[0168] It can be understood that the cooperation of the first linear driving part 511 and the second linear driving part provides precise vertical and horizontal movement control for the jaw assembly 520, ensures that the jaw assembly 520 can accurately position the bare cell 900, improves the automation level of the entire bare cell detection device, and reduces the dependence on manual operation.

[0169] In some embodiments, as shown in Figure 7 and Figure 8 As shown, the second linear driving part includes a connecting seat 5121, a matching piece 5122 and a driver 5123, the connecting seat 5121 is connected with the output end of the first linear driving part 511 and is provided with a through groove 51211 extending in the up-down direction, the through groove 51211 extends in the width direction of the bare cell 900; the matching piece 5122 is provided in the through groove 51211 and one end thereof extends out of the through groove 51211 and is connected with the jaw mounting seat 521; the fixed end of the driver 5123 is arranged in the connecting seat 5121, and the output end of the driver 5123 is connected with the other end of the matching piece 5122. Exemplarily, the driver 5123 includes but is not limited to a ball screw motor.

[0170] It can be understood that the driver 5123 receives the instruction of the upper computer to drive the matching piece 5122 to move in the through groove 51211 in the width direction of the bare cell 900, so as to drive the jaw mounting seat 521 to move in the width direction of the bare cell 900, so as to realize the rapid and accurate adjustment of the position of the jaw, improve the carrying efficiency, and shorten the production cycle. At the same time, the matching piece 5122 is provided in the through groove 51211, so that the vertical size of the entire carrying mechanism 500 is more compact.

[0171] In some embodiments, as shown in Figures 7 to 9 As shown, the limiting assembly includes a first limiting piece 531 and a second limiting piece 532, the first limiting piece 531 is arranged in the jaw connecting piece 522; the second limiting piece 532 is arranged in the jaw connecting piece 522, and the first limiting piece 531 and the second limiting piece 532 are respectively arranged on the two sides of the jaw connecting piece 522 protruding in the length direction of the bare cell 900.

[0172] It can be understood that the first limiting member 531 and the second limiting member 532 are respectively arranged on both sides of the claw connecting member 522 along the length direction of the bare battery cell 900, so as to be in contact with the bare battery cell 900 and other components first when the claw assembly 520 moves, thereby protecting the bare battery cell 900 and ensuring the stability and safety of the bare battery cell 900 during the conveying process.

[0173] In some embodiments, as shown in Figures 7 to 9 The first limiting member 531 is provided with two and corresponds to the claw connecting member 522 one by one, and the first limiting member 531 is located above the second limiting member 532; the second limiting member 532 includes a first connecting segment 5321, a second connecting segment 5322 and a third connecting segment 5323, one end of the first connecting segment 5321 is arranged on the claw connecting member 522 and extends along the length direction of the bare battery cell 900; one end of the second connecting segment 5322 is connected with the other end of the first connecting segment 5321 and extends along the up-down direction; one end of the third connecting segment 5323 is connected with the other end of the second connecting segment 5322 and extends along the width direction of the bare battery cell 900, for spacing from the end of the bare battery cell 900.

[0174] It can be understood that the two first limiting members 531 are respectively arranged on the two claw connecting members 522 and are located above the second limiting member 532, thereby avoiding interfering with the process of the bare battery cell 900 entering the clamping space. Meanwhile, the first connecting segment 5321, the second connecting segment 5322 and the third connecting segment 5323 connected in turn from top to bottom form the second limiting member 532, and the third connecting segment 5323 can be spaced from the outer end of the tab, thereby reducing the risk of damage to the bare battery cell 900 due to operation errors and improving the safety of the bare battery cell 900.

[0175] In some embodiments, as shown in Figure 8 The limiting assembly further includes a second sensing member 533 and two second proximity sensors 534, the second sensing member 533 is arranged on the side of the cooperating member 5122 away from the driver 5123; the second proximity sensor 534 is arranged on the connecting seat 5121, and the two second proximity sensors 534 are respectively close to the two ends of the through slot 51211. Exemplarily, the second proximity sensor 534 can be an electromagnetic, photoelectric, ultrasonic or other type of sensor, which can sense the presence of the second sensing member 533 and send a position signal to the upper computer.

[0176] It can be understood that the current position of the cooperating member 5122 is detected by the second proximity sensor 534, so as to determine whether the movement of the claw assembly 520 along the width direction of the bare battery cell 900 reaches the maximum, which helps to avoid the collision between the bare battery cell 900 and other components, ensures the stability and safety of the bare battery cell 900 during the conveying process, and improves the production efficiency and the convenience of operation.

[0177] In some embodiments, as shown in Figure 1 and Figure 2 , the plurality of detection stations includes a first detection station and a second detection station, the first detection station is located on the upper conveying line, and the second detection station is located outside the upper conveying line and close to the end of the upper conveying line. The main body detection device includes a first main body detection mechanism 110a, a moving mechanism 120, a second main body detection mechanism 110b, and a third main body detection mechanism. The first main body detection mechanism 110a is located at the first detection station and is used to obtain a top surface image of the main body. The fixed end of the moving mechanism 120 is arranged on the conveying frame 410 of the conveying mechanism 400, and the output end of the moving mechanism 120 is connected to the first main body detection mechanism 110a and is used to drive the first main body detection mechanism 110a to move vertically along the conveying direction of the upper conveying line. The second main body detection mechanism 110b is arranged on the conveying frame 410 and located at the second detection station, and is used to obtain a bottom surface image of the main body. The third main body detection mechanism is arranged on the conveying frame 410 and located at the second detection station, and is used to obtain a side surface image of the main body. The carrying mechanism 500 is used to drive the bare battery cell 900 to move close to or away from the end of the upper conveying line.

[0178] It can be understood that when the carrying mechanism 500 clamps the bare battery cell 900 to move close to the end of the upper conveying line, the second main body detection mechanism 110b and the third main body detection mechanism are used to obtain the bottom surface image and the side surface image of the main body, respectively. Then, the carrying mechanism 500 transfers the bare battery cell 900 to the carrier 450, and the moving mechanism 120 drives the first main body detection mechanism 110a to move along the conveying direction, and the first main body detection mechanism 110a obtains the top surface image of the main body. Exemplarily, the moving mechanism 120 includes but is not limited to a lead screw module.

[0179] In some embodiments, as shown in Figure 10 and Figure 11 , the first main body detection mechanism 110a and the second main body detection mechanism 110b each include a detection frame 111, a first light source 112, two second light sources 113, and a first camera assembly 114. The detection frame 111 has a plurality of first mounting positions, a plurality of second mounting positions, and a plurality of third mounting positions. The first light source 112 is mounted at one of the plurality of first mounting positions. The two second light sources 113 are mounted at two of the plurality of second mounting positions, and the light emitted by the first light source 112 and the two second light sources 113 respectively converges on a straight line. The first camera assembly 114 is mounted at one of the plurality of third mounting positions, and the first light source 112 is located between the first camera assembly 114 and the main body.

[0180] The first light source 112 is adjustably arranged on the detection rack 111; the second light source 113 is adjustably arranged on the detection rack 111 and located on the same side of the main body as the first light source 112 along the up-down direction, and the first light source 112 is located between the two second light sources 113, so that the light emitted by the first light source 112 and the two second light sources 113 converges on a straight line; and the first camera assembly 114 is adjustably arranged on the detection rack 111.

[0181] It can be understood that the detection rack 111 serves to fix the first light source 112, the second light source 113 and the first camera assembly 114, and the first light source 112 and the second light source 113 are adjustably arranged on the detection rack 111, so as to adapt to the illumination range required for detecting the bare battery cell 900 of different sizes, and the first light source 112 and the second light source 113 are located on the same side of the main body and all the light converges on a straight line, which can provide more uniform illumination, reduce shadow and highlight area, and as far as possible to show the small defects such as scratches or dents on the surface of the bare battery cell 900, so that the features in the image obtained by the first camera assembly 114 (including at least one of the top surface image and the bottom surface image of the main body) are more obvious, and the detection efficiency, detection accuracy and automation level are improved.

[0182] In some embodiments, as shown in Figure 10 and Figure 11 The first body detection mechanism 110a and the second body detection mechanism 110b each further include a first supporting plate and at least one first fixing member 115, the first light source 112 is arranged on the first supporting plate, one of the detection rack 111 and the first supporting plate forms at least one first sliding groove 1111, the first sliding groove 1111 extends along the up-down direction, and the other of the detection rack 111 and the first supporting plate forms a plurality of first mounting holes; each first sliding groove 1111 corresponds to at least one first fixing member 115, one end of the first fixing member 115 passes through the corresponding first sliding groove 1111 and is threadedly connected with the first mounting hole. Exemplarily, the first fixing member 115 includes but is not limited to a screw.

[0183] It can be understood that by matching different first mounting holes and first sliding grooves 1111, the height of the first light source 112 is adjusted to adapt to the detection requirements of bare battery cells 900 of different sizes, and the response speed and operation efficiency of the first body detection mechanism 110a and the second body detection mechanism 110b are improved. It should be noted that the number and size of the first sliding grooves 1111 and the first mounting holes can be designed according to actual requirements, and the present embodiment does not make specific limitations thereto.

[0184] In the present embodiment, as shown in Figure 10 and Figure 11As shown, the first mounting hole is arranged on the first supporting plate, the first sliding slot 1111 is arranged on the detection rack 111, and two first sliding slots 1111 are arranged on the two sides of the detection rack 111 respectively.

[0185] In some embodiments, as shown in Figure 10 and Figure 11 As shown, the first scale line is arranged on the detection rack 111, the first scale line is close to the first sliding slot 1111 and extends in the up-down direction, so as to accurately and quickly adjust the vertical position of the first light source 112, realize the standardized detection process, and improve the detection efficiency and the operation convenience.

[0186] In some embodiments, as shown in Figure 10 and Figure 11 As shown, the detection rack 111 forms the second sliding slot 1112 and the third sliding slot 1113 arranged at intervals, the extension directions of the second sliding slot 1112 and the third sliding slot 1113 are parallel, and the extension direction of the second sliding slot 1112 is arranged at an acute angle with the up-down direction; the first main body detection mechanism 110a and the second main body detection mechanism 110b each further include a first rotating shaft 1131, a first positioning piece 116, and a plurality of second fixing pieces 117, one end of the first rotating shaft 1131 is connected with the second light source 113, the other end of the first rotating shaft 1131 is slidingly connected with the second sliding slot 1112; the first positioning piece 116 is sleeved outside the first rotating shaft 1131 and forms a plurality of second mounting holes; the third sliding slot 1113 corresponds to at least one second fixing piece 117, one end of the second fixing piece 117 passes through the corresponding third sliding slot 1113 and is connected with the second mounting hole.

[0187] It can be understood that the second sliding slot 1112 and the third sliding slot 1113 are respectively arranged at an acute angle with the up-down direction, so that the second light source 113 can be adjusted in multiple directions in the smallest possible space, and since the second light source 113 is slidingly connected with the second sliding slot 1112 through the first rotating shaft 1131, the angle of the second light source 113 can be adjusted, and the second fixing piece 117 is connected with the second light source 113 by passing through the third sliding slot 1113 and the second mounting hole in turn, so as to fix the current pose of the second light source 113, thereby providing a flexible, stable and easy-to-maintain adjustment mode of the second light source 113, and improving the efficiency and accuracy of the main body detection.

[0188] In this embodiment, as shown in Figure 10 and Figure 11 As shown, the two sides of each second light source 113 arranged oppositely are provided with the first rotating shaft 1131, the first positioning piece 116, the second sliding slot 1112 and the first rotating shaft 1131 correspond one by one, and two third sliding slots 1113 are arranged on the two sides of each second sliding slot 1112, so as to ensure that the second light source 113 can stably maintain the current pose after adjustment.

[0189] In some embodiments, as shown in Figure 10 and Figure 11 , the first positioning member 116 is provided with a circumferential scale line near the surface of the second sliding groove 1112, so as to facilitate the rapid and accurate adjustment of the angle of the second light source 113, realize the standardized detection process, and improve the detection efficiency and the convenience of operation.

[0190] In some embodiments, as shown in Figure 10 and Figure 11 , the detection rack 111 is provided with a second scale line near the surface of the third sliding groove 1113, and the extension direction of the second scale line is parallel to the extension direction of the third sliding groove 1113, so as to facilitate the rapid and accurate adjustment of the vertical position and the horizontal position of the second light source 113, realize the standardized detection process, and improve the detection efficiency and the convenience of operation.

[0191] In some embodiments, as shown in Figure 11 , the detection rack 111 forms a fourth sliding groove 1114 corresponding to the first positioning member 116, the extension direction of the fourth sliding groove 1114 is parallel to the extension direction of the second sliding groove 1112, the second sliding groove 1112 and the third sliding groove 1113 are both arranged on the groove bottom of the fourth sliding groove 1114, and the outer wall of the first positioning member 116 is attached to the inner wall of the fourth sliding groove 1114.

[0192] It can be understood that the detection rack 111 includes two oppositely arranged side plates, the second light source 113 is located between the two side plates, and the side of the two side plates close to each other forms the fourth sliding groove 1114 for accommodating part of the first positioning member 116, so as to ensure that the first positioning member 116 can smoothly slide in the fourth sliding groove 1114 during the adjustment of the second light source 113, and realize the stability of the second light source 113 during the adjustment.

[0193] In some embodiments, as shown in Figure 10 and Figure 11 , the first main body detection mechanism 110a and the second main body detection mechanism 110b each further include a second supporting plate and at least one third fixing member, the first camera assembly 114 is arranged on the second supporting plate, one of the detection rack 111 and the second supporting plate forms at least one fifth sliding groove 1115, the fifth sliding groove 1115 extends in the up-down direction, and the other of the detection rack 111 and the second supporting plate forms a plurality of third mounting holes; each fifth sliding groove 1115 corresponds to at least one third fixing member, one end of the third fixing member is threadedly connected with the third mounting hole through the corresponding fifth sliding groove 1115. Exemplarily, the first camera assembly 114 includes but is not limited to a camera and a lens.

[0194] It can be understood that by matching the different third mounting holes and the fifth sliding grooves 1115, the height of the first camera assembly 114 is adjustable to adapt to the detection needs of different sizes of bare cells 900, thereby improving the response speed and operation efficiency of the first body detection mechanism 110a and the second body detection mechanism 110b respectively. It should be noted that the number and size of the fifth sliding grooves 1115 and the third mounting holes can be designed according to actual needs, and the present embodiment does not make specific limitations thereto.

[0195] In the present embodiment, as shown in Figure 10 and Figure 11 , the third mounting holes are arranged on the second supporting plate, and the fifth sliding grooves 1115 are arranged on the detection rack 111, and two fifth sliding grooves 1115 are arranged on each side of the detection rack 111.

[0196] In some embodiments, as shown in Figure 10 and Figure 11 , the detection rack 111 is provided with a third scale line, and the third scale line is close to the fifth sliding grooves 1115 and extends in the up-down direction, so as to accurately and quickly adjust the vertical position of the first camera assembly 114, realize the standardized detection process, and improve the detection efficiency and the operation convenience.

[0197] In some embodiments, as shown in Figure 10 , the first body detection mechanism 110a and the second body detection mechanism 110b each further include a protective cover 118, and the protective cover 118 is arranged on the detection rack 111. In the projection in the up-down direction, the projection of the protective cover 118 and the projection of the detection rack 111 jointly form a closed structure, and the projection of the first light source 112, the projection of the second light source 113 and the projection of the first camera assembly 114 are located within the closed structure.

[0198] It can be understood that the projection of the protective cover 118 and the projection of the detection rack 111 jointly form a closed structure, which means that the protective cover 118 completely covers the detection rack 111, forming a sealed space, thereby protecting the first camera assembly 114, the first light source 112 and the second light source 113, and reducing the possibility of accidental touching or operation.

[0199] In some embodiments, as shown in Figure 10 , the first body detection mechanism 110a and the second body detection mechanism 110b each further include a dust removal structure 119, and the dust removal structure 119 is arranged on the detection rack 111, thereby reducing the pollution of dust and particulate matter to the first light source 112, the second light source 113 and the first camera assembly 114, and avoiding the influence of these pollutants on the image quality and the detection result. Exemplarily, the dust removal structure 119 includes but is not limited to a filtering unit, a flow guide plate, a dust removal element and a dust removal element, etc., and the present embodiment does not make specific limitations thereto.

[0200] In some embodiments, the first light source 112 is a coaxial light source, and the second light source 113 is a strip light source.

[0201] It can be understood that the coaxial light source emits light rays coinciding with the lens axis of the first camera assembly 114, which is used to illuminate the surface of the object being photographed to reduce shadows and reflections, and reduce glare caused by direct reflection of light rays to the camera lens. In combination with the strip light source, a wider illumination area can be provided, which can significantly improve image quality and thus improve the accuracy and reliability of the detection result.

[0202] In some embodiments, as shown in Figure 1 and Figure 2 The third body detection mechanism includes two oppositely arranged third camera assemblies 131, and the second body detection mechanism is located between the two third camera assemblies 131, and the two third camera assemblies 131 are respectively used to photograph the two sides of the body along the width direction to obtain body side images. Exemplarily, the third camera assembly 131 includes a camera and a lens.

[0203] In some embodiments, as shown in Figure 1 and Figure 2 The plurality of detection stations further includes a third detection station and a fourth detection station, the third detection station is located on the upper conveying line, the fourth detection station is located outside the upper conveying line and on the side of the second detection station away from the upper conveying line, the tab misalignment detection mechanism 200 is located in the fourth detection station, and the tab surface detection mechanism is arranged on the conveying rack 410 and located in the third detection station.

[0204] It can be understood that the third detection station is located on the upper conveying line, so that the bare battery cell 900 can be directly detected during the conveying process, thereby improving the detection efficiency and continuity. That is, the bare battery cell 900 is clamped by the carrying mechanism 500 to pass through the second detection station and the fourth detection station in turn to obtain the tab misalignment image, the body bottom surface image and the body side image, and then the carrying mechanism 500 transfers the bare battery cell 900 to the carrier 450 to make the bare battery cell 900 pass through the first detection station and the third detection station in turn to obtain the body top surface image, the tab side surface image and the tab end surface image.

[0205] In some embodiments, as shown in Figure 12As shown, the second two-dimensional code is arranged on the bare battery cell 900, and the tab misalignment detection mechanism 200 includes a jig 210, a second camera assembly 220, a third light source, and a second code scanner 230. The jig 210 is used to carry the bare battery cell 900. The second camera assembly 220 is arranged above the jig 210. The third light source is arranged on the jig 210 and below the tab. The second code scanner 230 is arranged above the jig 210 and is used to scan and identify the second two-dimensional code of the bare battery cell 900 placed in the jig 210.

[0206] It can be understood that the conveying mechanism 500 places the bare battery cell 900 on the jig 210, and the third light source is arranged on the jig 210 and below the tab, thereby providing backlight for the tab and enhancing the contrast of the tab profile, making the judgment of whether the tab is misaligned more accurate. At the same time, the second code scanner 230 scans the second two-dimensional code on the bare battery cell 900, which can automatically collect information of the bare battery cell 900, thereby enhancing the quality control and traceability of the product and improving the detection efficiency.

[0207] In some embodiments, as shown in Figure 1 and Figure 2 , the length direction of the bare battery cell 900 on the jig 210 is parallel to the length direction of the bare battery cell on the carrier 450, so as to further reduce the floor space of the entire bare battery cell detection device and make the entire bare battery cell detection device as compact as possible.

[0208] In some embodiments, as shown in Figure 1 and Figure 2 , the tab surface detection mechanism includes two tab side surface detection structures 310 and two tab end surface detection structures 320. The two tab side surface detection structures 310 are oppositely arranged and are used to respectively capture two side surfaces of the tab along the width direction of the bare battery cell 900. The two tab end surface detection structures 320 are oppositely arranged and are used to capture the end surface of the tab away from the main body.

[0209] It can be understood that the third detection station has three, and the three third detection stations are arranged at intervals along the conveying direction of the upper conveying line. The two tab side surface detection structures 310 are respectively located in two of the third detection stations, and the two tab end surface detection structures 320 are respectively located on both sides of the other detection station. That is, the carrier 450 passes through the two detection stations in turn, so as to obtain the tab side surface images corresponding to the two opposite side surfaces of the tab on both sides of the main body. The carrier 450 passes through the other detection station, so as to obtain the tab end surface images corresponding to the end surfaces of the tab away from the main body on both sides of the main body. Thus, a high-efficiency, comprehensive and automatic detection mode is realized, which helps to improve the accuracy and efficiency of the detection process.

[0210] It should be noted that in the embodiment, the body is provided with a tab on each side along the length direction, i.e. two tab end face detection structures 320 are needed. Of course, in other embodiments, the number and specific distribution of the tab end face structures can be adjusted according to the arrangement mode of the tabs, which is not specifically limited in the embodiment.

[0211] In some embodiments, as shown in Figure 13 and Figure 14 , the tab side face detection structure 310 includes a mounting frame 311 and two oppositely arranged first imaging assemblies 312, the mounting frame 311 is arranged on the conveyor frame 410; the first imaging assembly 312 is arranged on the mounting frame 311, and the installation position along the length direction of the bare cell 900 is adjustable.

[0212] It can be understood that the mounting frame 311 is arranged on the conveyor frame 410 and provides stable support for the first imaging assembly 312. The installation position of the first imaging assembly 312 along the length direction of the bare cell 900 can be adjusted to adapt to bare cells 900 of different lengths, and to ensure that the first imaging assembly 312 can correctly align the side of the tab for shooting.

[0213] In some embodiments, as shown in Figure 14 , the first imaging assembly 312 includes a first connecting piece 3121, a prism 3122, a first imaging unit 3123, and two fourth light sources 3124 respectively located on both sides of the bare cell 900 along the up-down direction, the first connecting piece 3121 is adjustably arranged on the mounting frame 311 along the length direction of the bare cell 900; the prism 3122 is arranged on the first connecting piece 3121, and the installation position of the prism 3122 along the width direction of the bare cell 900 is adjustable, and the angle between the prism 3122 and the bare cell 900 is adjustable; the first imaging unit 3123 is adjustably arranged on the mounting frame 311; the two fourth light sources 3124 are arranged on the mounting frame 311 and the first connecting piece 3121 respectively, and the installation position and the angle position of the fourth light source 3124 are adjustable. Exemplarily, the first imaging unit 3123 includes but is not limited to a camera and a lens.

[0214] It can be understood that the fourth light source 3124 illuminates the tab, and the image of the tab is projected to the first imaging unit 3123 through the prism 3122 to obtain the tab side face image. At the same time, the installation positions of the first connecting piece 3121, the prism 3122, the fourth light source 3124 and the first imaging unit 3123 are adjustable, and the angle of the prism 3122 and the fourth light source 3124 is adjustable, providing flexible light reflection and adjustment capability to adapt to different detection angle requirements while improving the imaging quality.

[0215] It should be noted that the adjustable mounting positions of the first connector 3121, prism 3122, fourth light source 3124, and first imaging unit 3123 can be achieved by using a similar elongated groove and different mounting holes as described above; this embodiment does not impose specific limitations on this. Similarly, the adjustable angles of the prism 3122 and the fourth light source 3124 can also be achieved by using a rotating base and a locking component; this embodiment does not impose specific limitations on this either.

[0216] Similarly, such as Figure 13 and Figure 14 As shown, length scale lines are set on the slide groove, and circumferential scale lines are set on the rotating base to meet the high requirements for accuracy and flexibility in the testing process of bare cells of different sizes.

[0217] In some embodiments, one of the two fourth light sources 3124 is a strip light source and the other is a ring light source, which can provide illumination from different angles and directions to ensure that the sides of the electrode are adequately illuminated, thereby improving the accuracy and reliability of the detection.

[0218] In some embodiments, such as Figure 15 As shown, the tab end face detection structure 320 includes a fixing frame 321 and two second imaging components spaced apart along the vertical direction. The second imaging components are arbitrarily positioned on the fixing frame 321, thereby providing flexible and accurate detection capabilities to meet the high requirements of bare cell 900 tab end face detection, thus improving the accuracy and reliability of the detection.

[0219] In some embodiments, such as Figure 15 As shown, the second imaging assembly includes a second connector 3221, a second imaging unit 3222, and a fifth light source 3223. The second connector 3221 is height-adjustable and adjustable along the length of the bare battery cell 900, mounted on the mounting bracket 321. The second imaging unit 3222 is angle-adjustable mounted on the second connector 3221. The fifth light source 3223 is angle-adjustable mounted on the connector and located on the side of the second imaging unit 3222 closer to the bare battery cell 900. Exemplarily, the second imaging unit 3222 includes, but is not limited to, a camera and a lens.

[0220] Understandably, the fifth light source 3223 illuminates the tab and obtains an image of the tab end face through the second imaging unit 3222. Simultaneously, the height of the second connector 3221 and its length along the bare cell 900 are adjustable, and the angles of the fifth light source 3223 and the second imaging unit 3222 are adjustable, providing flexible light reflection and adjustment capabilities to adapt to different detection angle requirements while improving imaging quality.

[0221] It should be noted that the height of the second connecting piece 3221 is adjustable and the position along the length direction of the bare battery cell 900 is adjustable, which can be achieved by using a long slot and different mounting holes as described above, and the embodiment does not make specific limitations on this. Similarly, the angle-adjustable mode of the second imaging unit 3222 and the fifth light source 3223 can also be achieved by using a rotating base and a locking piece, and the embodiment does not make specific limitations on this.

[0222] Similarly, as shown in the drawings, Figure 15 a length scale is arranged on the slot, and a circumferential scale is arranged on the rotating base to meet the high requirements for accuracy and flexibility in the detection process of bare battery cells 900 of different sizes.

[0223] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0224] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0225] In the description of the present application, "first feature" and "second feature" can include one or more features.

[0226] In the description of the present application, "a plurality of" means two or more.

[0227] In the description of the present application, the first feature "above" or "below" the second feature can include the first and second features directly contacting each other, or the first and second features not directly contacting each other but contacting each other through another feature between them.

[0228] In the description of the application, above, over and on are used to indicate that the first feature is above, over or on the second feature, either directly or obliquely, or simply that the first feature is higher than the second feature.

[0229] In the description of the application, references to "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "in some embodiments", "in an illustrative embodiment", "an example", "a specific example", or "some examples" in various places in the specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0230] Although embodiments of the application have been illustrated and described, it will be clear to those of ordinary skill in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the principles and the spirit of the application. The scope of the application is limited only by the claims and the equivalents thereof.

Claims

1. A bare battery cell testing device for testing bare battery cells (900), characterized in that, The bare battery cell (900) includes a main body and a plurality of tabs extending from the sides of the main body; the bare battery cell testing equipment includes: A main body detection device is used to capture images of the top surface, bottom surface, and side surface of the main body, thereby obtaining images of the top surface, bottom surface, and side surface of the main body. The electrode detection device includes an electrode misalignment detection mechanism (200) and an electrode surface detection mechanism. The electrode misalignment detection mechanism (200) is used to obtain an electrode misalignment image, and the electrode surface detection mechanism is used to capture the side and end faces of the electrode to obtain an electrode side image and an electrode end face image. A conveying and handling device is used to drive the bare battery cell (900) through the main body detection device and the tab detection device respectively.

2. The bare cell testing equipment according to claim 1, characterized in that, The bare cell testing equipment has multiple testing stations, and the conveying and handling device includes: The conveying mechanism (400) has at least a portion of the plurality of inspection stations located on the upper conveying line of the conveying mechanism (400); The conveying mechanism (500) forms a clamping space for holding the bare battery cell (900) and for moving the bare battery cell (900) closer to or away from the inspection station located at the end of the upper conveyor line.

3. The bare cell testing equipment according to claim 2, characterized in that, Multiple inspection stations include a first inspection station and a second inspection station. The first inspection station is located on the upper conveyor line, and the second inspection station is located outside the upper conveyor line and close to its end. The main inspection device includes: The first main body detection mechanism (110a) is located at the first detection station and is used to obtain the top surface image of the main body; A moving mechanism (120) is provided with its fixed end disposed on the conveyor frame (410) of the conveying mechanism (400). The output end of the moving mechanism (120) is connected to the first main body detection mechanism and is used to drive the first main body detection mechanism to move along the conveying direction perpendicular to the upper conveying line. The second main body inspection mechanism (110b) is set on the conveyor frame (410) and located at the second inspection station, and is used to obtain the bottom surface image of the main body. The transport mechanism (500) is used to drive the bare battery cell (900) from the second inspection station to approach or move away from the upper conveyor line. The third main body inspection mechanism is set on the conveyor frame (410) and located at the second inspection station, and is used to obtain the side image of the main body.

4. The bare cell testing equipment according to claim 3, characterized in that, Both the first main testing unit (110a) and the second main testing unit (110b) include: The testing frame (111) has multiple first mounting positions, multiple second mounting positions and multiple third mounting positions; The first light source (112) is installed at one of the plurality of first installation positions; Two second light sources (113) are installed at two of the plurality of second installation positions, and the light rays emitted by the first light source (112) and the two second light sources (113) converge on a straight line; A first camera assembly (114) is mounted at one of the plurality of third mounting locations, and a first light source (112) is located between the first camera assembly (114) and the main body.

5. The bare cell testing equipment according to claim 3, characterized in that, The multiple inspection stations also include a third inspection station and a fourth inspection station. The third inspection station is located on the upper conveyor line, and the fourth inspection station is located outside the upper conveyor line and on the side of the second inspection station away from the upper conveyor line. The tab misalignment detection mechanism (200) is located at the fourth inspection station, and the tab surface detection mechanism is set on the conveyor frame (410) and located at the third inspection station.

6. The bare cell testing equipment according to claim 2, characterized in that, The conveying mechanism (400) includes: Conveyor frame (410); A circulating conveyor line is installed on the conveyor frame (410), and the beginning and end of the circulating conveyor line are connected. Multiple carriers (450) are movably disposed on the circulating conveyor line and are used to carry the bare battery cells (900).

7. The bare cell testing equipment according to claim 6, characterized in that, The vehicle (450) includes: A base (451) is movably disposed on the circulating conveyor line; The mounting component is disposed on the base (451) and is used to support the main body; At least one pair of movable parts (453) are movably disposed on the base (451) and have a first state and a second state. In the first state, the movable parts (453) are disengaged from the main body, and in the second state, the movable parts (453) are elastically engaged with the top surface of the main body.

8. The bare cell testing equipment according to claim 2, characterized in that, The conveying mechanism (500) includes: The gripper assembly (520) has a gripping configuration for holding bare battery cells (900) of various sizes; The conveying drive assembly (510) has its output end connected to the gripper assembly (520) and is used to drive the gripper assembly (520) to move in the vertical direction and in the width direction of the bare cell (900). A limiting component is disposed between the conveying drive component (510) and the gripper component (520) to limit the range of movement of the gripper component (520).

9. The bare cell testing equipment according to any one of claims 1 to 8, characterized in that, A second QR code is provided on the bare battery cell (900), and the electrode misalignment detection mechanism (200) includes: A fixture (210) is used to carry the bare battery cell (900); A second camera assembly (220) is disposed above the fixture (210); A third light source is disposed on the fixture (210) and located below the electrode tab; A second barcode scanner (230) is disposed above the fixture (210) for scanning and identifying the second QR code of the bare battery cell (900) placed in the fixture (210).

10. The bare cell testing equipment according to any one of claims 1 to 8, characterized in that, The electrode surface detection mechanism includes: Two oppositely arranged tab side detection structures (310) are used to respectively photograph the two oppositely arranged sides of the tab along the width direction of the bare cell (900); Two oppositely arranged electrode end face detection structures (320) are used to capture images of the end face of the electrode away from the main body.

11. The bare cell testing equipment according to claim 10, characterized in that, The electrode side detection structure (310) includes: Mounting bracket (311); Two opposing first imaging components (312) are disposed on the mounting bracket (311) and their mounting positions are adjustable along the length direction of the bare cell (900).

12. The bare cell testing equipment according to claim 11, characterized in that, The first imaging component (312) includes: The first connector (3121) is mounted on the mounting bracket (311) in an adjustable position along the length direction of the bare cell (900); A prism (3122) is disposed on the first connector (3121), and the mounting position of the prism (3122) along the width direction of the bare cell (900) is adjustable, and the angle between the prism (3122) and the bare cell (900) is adjustable; The first imaging unit (3123) is mounted in an adjustable position on the mounting bracket (311); Two fourth light sources (3124) are respectively located on both sides of the bare battery cell (900) along the vertical direction. The two fourth light sources (3124) are respectively disposed on the mounting bracket (311) and the first connector (3121), and the installation position and angle position of the fourth light sources (3124) are adjustable.

Images