Main body detection mechanism and main body detection device

Abstract

The utility model discloses a main body detection mechanism and a main body detection device, and belongs to the technical field of battery detection. The main body detection mechanism comprises a detection rack, a first light source, two second light sources and a first camera assembly; the mounting position of the first light source is adjustably arranged on the detection rack; the installation positions of the second light sources are adjustably arranged on the detection rack, the second light sources and the first light source are located on the same side of the main body of the bare cell in the vertical direction, the first light source is located between the two second light sources, and light emitted by the first light source and light emitted by the two second light sources are gathered on the same straight line; the first camera assembly is adjustably arranged on the detection rack, and the first light source is located between the first camera assembly and the main body. According to the invention, comprehensive detection of the main body and the tab of the bare cell is realized in an automatic manner, subjective judgment errors and fatigue factors possibly occurring in manual detection are reduced, the detection efficiency and the accuracy of a detection result are improved, and the production cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of battery testing technology, and in particular relates to a main testing mechanism and a main testing device. Background Technology

[0002] With the development of new energy technologies, batteries are being used more and more widely. As an important component of batteries, the quality of bare cells is receiving increasing attention. However, current testing of bare cells often lacks automation and comprehensiveness, resulting in low efficiency and accuracy in determining their quality, which is detrimental to mass production by manufacturing companies. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a main body inspection mechanism and main body inspection device, which realizes comprehensive inspection of the main body and tabs of bare cells in an automated manner, reduces subjective judgment errors and fatigue factors that may occur in manual inspection, improves inspection efficiency and the accuracy of inspection results, and reduces production costs.

[0004] Firstly, this application provides a main testing mechanism applied to bare cell testing equipment, the main testing mechanism comprising:

[0005] Testing frame;

[0006] The first light source is installed in an adjustable position on the detection frame;

[0007] Two second light sources are installed in an adjustable position on the testing frame and are located on the same side of the bare cell body along the vertical direction as the first light source. The first light source is located between the two second light sources, and the light emitted by the first light source and the two second light sources converges on a straight line.

[0008] A first camera assembly is arbitrarily mounted on the detection frame, and a first light source is located between the first camera assembly and the main body.

[0009] According to the main inspection mechanism of this application, the inspection frame serves to fix the first light source, the second light source, and the first camera assembly. The first and second light sources are both mounted on the inspection frame in adjustable positions, which facilitates the adaptation to the illumination range required for the inspection of bare cells of different sizes. The first and second light sources are located on the same side of the main body and all the light rays converge on a straight line, which can provide more uniform illumination, reduce shadow and highlight areas, and show as many minor defects such as scratches or dents on the surface of the bare cells as possible. This makes the features in the image obtained by the first camera assembly (including at least one of the top surface image and the bottom surface image of the main body) more obvious, thereby improving inspection efficiency, inspection accuracy, and automation level.

[0010] According to one embodiment of this application, the main testing mechanism further includes:

[0011] The first support plate, the first light source is disposed on the first support plate, one of the detection frame and the first support plate forms at least one first slide groove, the first slide groove extends in the vertical direction, and the other of the detection frame and the first support plate forms a plurality of first mounting holes;

[0012] At least one first fixing member, each first slide groove corresponds to at least one first fixing member, and one end of the first fixing member passes through the corresponding first slide groove and is threadedly connected to the first mounting hole.

[0013] According to one embodiment of this application, the testing frame is provided with a first scale line, which is close to the first slide groove and extends along the vertical direction.

[0014] According to one embodiment of this application, the detection frame forms a second slide groove and a third slide groove spaced apart, the extension directions of the second slide groove and the third slide groove are parallel, and the extension direction of the second slide groove forms an acute angle with the vertical direction; the main detection mechanism further includes:

[0015] A first rotating shaft, one end of which is connected to the second light source, and the other end of which is slidably hinged to the second sliding groove;

[0016] A first positioning element is sleeved on the outside of the first rotating shaft and forms a plurality of second mounting holes;

[0017] Multiple second fasteners are provided, and the third slide groove corresponds to at least one of the second fasteners. One end of the second fastener passes through the corresponding third slide groove and is connected to the second mounting hole.

[0018] According to one embodiment of this application, the surface of the first positioning member near the second slide groove is provided with circumferential scale lines; and / or

[0019] The surface of the testing frame near the third slide groove is provided with a second scale line, and the extension direction of the second scale line is parallel to the extension direction of the third slide groove.

[0020] According to one embodiment of this application, the detection frame forms a fourth slide groove corresponding to the first positioning member. The extension direction of the fourth slide groove is parallel to the extension direction of the second slide groove. The second slide groove and the third slide groove are both disposed at the bottom of the fourth slide groove. The outer wall of the first positioning member is in contact with the inner wall of the fourth slide groove.

[0021] According to one embodiment of this application, the main testing mechanism further includes:

[0022] The second support plate, the first camera assembly is disposed on the second support plate, one of the detection frame and the second support plate forms at least one fifth slide groove, the fifth slide groove extends in the vertical direction, and the other of the detection frame and the second support plate forms a plurality of third mounting holes;

[0023] At least one third fastener, each of the fifth slide grooves corresponds to at least one of the third fasteners, and one end of the third fastener passes through the corresponding fifth slide groove and is threadedly connected to the third mounting hole.

[0024] According to one embodiment of this application, the detection frame is provided with a third scale line, which is close to the fifth slide groove and extends along the vertical direction.

[0025] According to one embodiment of this application, it also includes:

[0026] A protective cover is disposed on the detection frame. In the vertical direction, the projection of the protective cover and the projection of the detection frame together form a closed structure. The projections of the first light source, the second light source, and the first camera assembly are all located within this closed structure; and / or

[0027] A dust removal structure is installed on the testing frame.

[0028] According to one embodiment of this application, the first light source is a coaxial light source, and the second light source is a bar light source.

[0029] Secondly, this application provides a body detection device, which includes:

[0030] Mobile mechanism; and

[0031] As described above, in the main detection mechanism, the output end of the moving mechanism is used to drive the main detection mechanism to move along the length direction of the bare cell.

[0032] The main body testing device according to this application realizes the comprehensive testing of the main body of the bare cell in an automated manner, reducing subjective judgment errors and fatigue factors that may occur in manual testing, improving testing efficiency and the accuracy of testing results, and reducing production costs.

[0033] Thirdly, this application provides a bare cell testing device, which includes the main testing device as described above.

[0034] The bare cell testing equipment according to this application enables comprehensive testing of the bare cell body and tabs in an automated manner, reducing subjective judgment errors and fatigue factors that may occur in manual testing, improving testing efficiency and the accuracy of test results, and reducing production costs.

[0035] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0036] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0037] Figure 1 This is one of the structural schematic diagrams of the bare cell testing equipment provided in the embodiments of this application;

[0038] Figure 2 This is a second schematic diagram of the bare cell testing equipment provided in the embodiments of this application;

[0039] Figure 3 This is a schematic diagram of the conveying mechanism provided in the embodiments of this application;

[0040] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0041] Figure 5 This is one of the structural schematic diagrams of the vehicle provided in the embodiments of this application;

[0042] Figure 6 This is a second schematic diagram of the structure of the vehicle provided in the embodiments of this application;

[0043] Figure 7 This is one of the structural schematic diagrams of the handling mechanism provided in the embodiments of this application;

[0044] Figure 8 This is the second hidden structural schematic diagram of the conveying mechanism provided in the embodiments of this application;

[0045] Figure 9This is a schematic diagram of the transport mechanism provided in this embodiment of the application, omitting the transport drive component;

[0046] Figure 10 This is a schematic diagram of the main testing mechanism provided in the embodiments of this application;

[0047] Figure 11 This is a schematic diagram of the main detection mechanism provided in this application embodiment without the protective cover.

[0048] Figure 12 This is a schematic diagram of the electrode misalignment detection mechanism provided in the embodiments of this application;

[0049] Figure 13 This is one of the structural schematic diagrams of the electrode side detection structure provided in the embodiments of this application;

[0050] Figure 14 This is a second schematic diagram of the electrode side detection structure provided in the embodiments of this application;

[0051] Figure 15 This is a schematic diagram of the electrode end face detection structure provided in the embodiments of this application.

[0052] Figure label:

[0053] 110. Main testing institution;

[0054] 111. Inspection frame; 1111. First slide rail; 1112. Second slide rail; 1113. Third slide rail; 1114. Fourth slide rail; 1115. Fifth slide rail;

[0055] 112. First light source; 113. Second light source; 1131. First rotating shaft; 114. First camera assembly; 115. First fixing component;

[0056] 116. First positioning component; 117. Second fixing component; 118. Protective cover; 119. Dust removal structure;

[0057] 120. Moving mechanism;

[0058] 131. Third camera assembly;

[0059] 200. Electrode misalignment detection agency;

[0060] 210. Fixture; 220. Second camera assembly; 230. Second barcode scanner;

[0061] 310. Side detection structure of the electrode tab;

[0062] 311. Mounting bracket; 312. First imaging component;

[0063] 3121. First connector; 3122. Prism; 3123. First imaging unit; 3124. Fourth light source;

[0064] 320. Electrode end face detection structure;

[0065] 321. Fixture;

[0066] 3221. Second connector; 3222. Second imaging unit; 3223. Fifth light source;

[0067] 400. Conveying mechanism;

[0068] 410. Conveyor frame;

[0069] 421. Upper support component; 422. First slide rail; 423. Connecting component; 424. Conveying drive component; 425. First limiting component; 4261. Roller;

[0070] 431. Lower support component; 432. Second slide rail; 433. Conveyor belt assembly; 434. Actuating component; 435. Buffer positioning component;

[0071] 440. Lifting structure; 441. Lifting support component; 442. Third slide rail;

[0072] 450. Vehicles;

[0073] 451. Base;

[0074] 4521, Mounting block; 45212, Second groove;

[0075] 4522. Adjusting block; 4523. Limiting part; 4524. Extension block;

[0076] 453. Moving part; 454. First reinforcing plate; 455. Second reinforcing plate; 456. Rotation drive component;

[0077] 460. Conveyor slider; 470. First sensing element; 480. First proximity sensor; 490. First barcode scanner;

[0078] 500. Handling mechanism;

[0079] 510. Transport drive assembly; 511. First linear drive unit;

[0080] 5121, Connecting seat; 51211, Through slot;

[0081] 5122. Mating component; 5123. Driver;

[0082] 520. Gripper assembly;

[0083] 521. Gripper mounting base; 5211. Fourth slide rail; 522. Gripper connector; 5221. Third connecting hole;

[0084] 523. Clamping component; 5231. Vertical section; 5232. Horizontal section;

[0085] 524. Registered laser sensors;

[0086] 531. First limiting member; 532. Second limiting member; 5321. First connecting segment; 5322. Second connecting segment; 5323. Third connecting segment;

[0087] 533. Second sensing element; 534. Second proximity sensor;

[0088] 900, bare battery cell. Detailed Implementation

[0089] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0090] The following is for reference. Figures 1-15 This application describes a bare cell testing device provided in an embodiment of the application, which is used to test bare cells 900.

[0091] It should be noted that a bare cell 900 includes a main body and multiple tabs extending from the sides of the main body. That is, a bare cell 900 typically refers to the cell unit before the battery is packaged. The cell unit consists of a positive electrode, a negative electrode, and a separator, and mainly functions by the movement of metal ions between the positive and negative electrodes. The positive electrode includes a positive current collector and a positive active material layer. The positive current collector includes a current collector body and positive tabs. The positive active material layer is coated on the surface of the current collector body, while the positive tabs are not coated with the positive active material layer and protrude from the current collector body. Taking lithium-ion batteries as an example, the material of the positive current collector can be aluminum, and the positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative current collector and a negative active material layer. The negative current collector includes a negative current collector body and a negative electrode tab. The negative active material layer is coated on the surface of the negative current collector body, while the negative electrode 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. To ensure that a large current can be passed without melting, there are multiple positive electrode tabs stacked together, and there are multiple negative electrode tabs stacked together. That is, the main body includes a positive current collector body and a negative current collector body, and the tabs include positive electrode tabs and negative electrode tabs. The material of the separator can be PP (polypropylene) or PE (polyethylene), etc. In addition, the cell unit can be a wound structure or a stacked structure, and the embodiments of this application are not limited to these.

[0092] The bare cell testing equipment includes a main body testing device, a tab testing device, and a conveying and transporting device. The main body testing device is used to photograph the top surface, bottom surface, and side surface of the main body to obtain images of the top surface, bottom surface, and side surface of the main body. The tab testing device includes a tab misalignment detection mechanism 200 and a tab surface detection mechanism. The tab misalignment detection mechanism 200 is used to obtain images of tab misalignment, and the tab surface detection mechanism is used to photograph the side and end surfaces of the tab to obtain images of the side and end surfaces of the tab. The conveying and transporting device is used to move the bare cell 900 through the main body testing device and the tab testing device respectively.

[0093] Understandably, the bare battery cell 900 located at the previous workstation is moved by the conveying and handling device to the tab misalignment detection mechanism 200, the tab surface detection mechanism, and the main body detection device, respectively, to capture images of the top, side, and end faces of the tab, as well as the top, bottom, and side faces of the main body. This obtains corresponding images of tab misalignment, tab side and end faces, main body top, bottom, and side faces, and main body bottom and side faces. These images are then identified and analyzed by a host computer to generate the detection results of the bare battery cell 900. This achieves comprehensive detection of the main body and tabs of the bare battery cell 900 using an automated method, reducing subjective judgment errors and fatigue factors that may occur in manual inspection, improving detection efficiency and the accuracy of detection results, and reducing production costs.

[0094] 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 recognizing images, or instructions for performing logical operations on image data. The processor can include a central processing unit, a specific integrated circuit, or one or more integrated circuits configured to implement the embodiments of this application. The memory can include a large-capacity memory for information or instructions. Optionally, the memory can be internal or external to the host computer. The processor reads and executes the computer program instructions stored in the memory to identify the electrode misalignment image, electrode side image, electrode end face image, main body top image, main body bottom image, and main body side image, thereby obtaining the surface inspection results of the bare cell 900.

[0095] According to the bare cell testing equipment provided in the embodiments of this application, by setting up a main body inspection device, a tab inspection device, and a conveying device, the main body and tabs of the bare cell 900 are fully inspected in an automated manner. This reduces subjective judgment errors and fatigue factors that may occur in manual inspection, improves inspection efficiency and the accuracy of inspection results, and reduces production costs.

[0096] In some embodiments, such as Figures 1 to 3 , Figure 7 and Figure 8 As shown, the bare battery cell testing equipment has multiple testing stations. The conveying and handling device includes a conveying mechanism 400 and a handling mechanism 500, with at least a portion of the multiple testing stations located within the conveying mechanism 400. The handling mechanism 500 forms a clamping space for holding the bare battery cell 900, used to move the bare battery cell 900 closer to or further away from at least a portion of the multiple testing stations. It should be noted that the number and specific distribution of the testing stations can be designed according to actual needs, and this embodiment does not impose specific limitations in this regard.

[0097] It is understandable that the main testing device, the tab misalignment testing mechanism 200, and the tab surface testing mechanism are respectively set on different testing stations, and at least some testing stations are located on the conveying mechanism 400, so that the testing can be carried out more efficiently. The bare cell 900 is clamped by the handling mechanism 500 and moved from the previous process to the testing station not set on the conveying mechanism 400, and moved to the testing station on the conveying mechanism 400. The tested bare cell 900 is then moved to the subsequent process, realizing full automation of the bare cell 900 testing and minimizing manual operation.

[0098] In some embodiments, such as Figures 1 to 3 As shown, the conveying mechanism 400 includes a conveyor frame 410, a circulating conveyor line, and multiple carriers 450. The circulating conveyor line is installed on the conveyor frame 410, and the two ends of the circulating conveyor line are connected. The carriers 450 are movably mounted on the circulating conveyor line and are used to carry bare battery cells 900. In other words, by setting up a circulating conveyor line and cooperating with multiple carriers 450, a comprehensive and efficient detection mode for the circulating conveying of carriers 450 and bare battery cells 900 is formed, increasing the flexibility and efficiency of the entire conveying process and improving the degree of automation.

[0099] In some embodiments, such as Figures 1 to 3 As shown, the circulating conveyor line includes an upper conveyor line, a lower conveyor line, and two lifting structures 440. Both the upper and lower conveyor lines are mounted on the conveyor frame 410, with the lower conveyor line conveying in the opposite direction to the upper conveyor line. The two lifting structures 440 are located on either side of the lower conveyor line. The fixed end of each lifting structure 440 is mounted on the conveyor frame 410, and the movable end of each lifting structure 440 can be selectively connected to either the lower or upper conveyor line. A carrier 450 is movably mounted on one of the lower conveyor line, the upper conveyor line, or the lifting structure 440. It should be noted that the conveying mechanism has a double-layer structure, with the upper conveyor line located on the upper layer of the frame and the lower conveyor line located on the lower layer.

[0100] Understandably, the upper conveyor line is located above the lower conveyor line, and at least some of the multiple inspection stations are located on the upper conveyor line. The handling mechanism 500 moves the bare battery cells 900 closer to or further away from the inspection stations located at the end of the upper conveyor line. Furthermore, the lower and upper conveyor lines have opposite conveying directions. In addition, two lifting structures 440 are located on either side of the lower conveyor line and can connect to either the upper or lower conveyor line, thus forming a cyclical conveying system for the carrier 450 and a comprehensive and efficient inspection mode for the bare battery cells 900. This increases the flexibility and efficiency of the entire conveying process and improves the level of automation. Simultaneously, the design of the upper and lower conveyor lines cleverly utilizes vertical space, thereby improving the rapid transfer and diversion of the carrier 450 without increasing the floor space, reducing the waiting time and number of transfers for the bare battery cells 900 during the inspection process, and improving production efficiency.

[0101] In some embodiments, such as Figure 3 and Figure 4 As shown, the conveying directions of the upper and lower conveyor lines are parallel to the width direction of the bare battery cell 900 located on the carrier 450, in order to further reduce the floor space and make the conveyor mechanism 400 more compact.

[0102] In some embodiments, such as Figures 2 to 4 As shown, the upper conveyor line includes an upper support member 421, a connector 423, and a conveyor drive member 424. The upper support member 421 is mounted on the conveyor frame 410 and has a first slide rail 422 that slides with the carrier 450. The connector 423 is detachably connected to the carrier 450 and is adapted to drive all carriers 450 located on the first slide rail 422 and carriers 450 mounted on one of the lifting structures 440 to move synchronously. The fixed end of the conveyor drive member 424 is mounted on the conveyor frame 410, and the driving end of the conveyor drive member 424 is connected to the connector 423 to drive the connector 423 to reciprocate along the extension direction of the first slide rail 422.

[0103] Understandably, the carrier 450 can drive the bare battery cell 900 to slide on the first slide rail 422, enabling switching between different testing stations. The connector 423 is connected to all carriers 450 located on the first slide rail 422 and to the carriers 450 on the lifting structure 440 that connects to the upper conveyor line. This ensures that multiple bare battery cells 900 can be tested simultaneously at different testing stations while reducing interference between the bare battery cells 900. It also ensures the coordination and consistency of the carriers 450 during the transport process, improving the accuracy and efficiency of testing as well as the transport efficiency.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] It is understandable that the two rollers 4261 are spaced apart along the extension direction of the first slide rail 422, and the rollers 4261 are located on the side of the connecting member 423 near the upper support member 421. By utilizing the rolling cooperation between the rollers 4261 and the two sides of the first limiting member 425, not only can the carrier 450 be stably guided and positioned on the first slide rail 422, but the rolling friction is also used to replace the sliding friction, reducing the possibility of wear and jamming, and improving the smoothness and reliability of the upper conveyor line.

[0110] In some embodiments, such as Figure 2 and Figure 3 As shown, the lower conveyor line includes a lower support member 431, a conveyor belt assembly 433, and a plurality of spaced-apart actuating members 434. The lower support member 431 is mounted on the conveyor frame 410 and has a second slide rail 432 that slides and engages with the carrier 450. The conveyor belt assembly 433 is mounted on the conveyor frame 410 and located on one side of the lower support member 431. The conveyor belt assembly 433 includes a conveyor belt and a conveyor belt drive member that drives 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 protrude from the two ends of the second slide rail 432 along the length direction of the conveyor belt. The actuating members 434 are mounted on the conveyor belt and engage with the carrier 450 on the second slide rail 432 to move the carrier 450 closer to or away from the lifting structure 440 under the action of the conveyor belt drive member.

[0111] It is 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 slides in cooperation with the second slide rail 432 through the conveyor slider 460. 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 protrude from the two ends of the second slide rail 432 along its length direction. This ensures that the conveyor belt can cover the entire length of the second slide rail 432 when it moves. Thus, the carrier 450 is effectively moved on the second slide rail 432 by the actuating member 434 to move closer to or away from the lifting structure 440. This achieves efficient and accurate conveying of the carrier 450 on the second slide rail 432, while reducing wear and energy loss and improving the automation level and operating efficiency of the entire conveying mechanism 400.

[0112] In some embodiments, such as Figure 2As shown, the lower conveyor line also includes a buffer positioning component 435. The buffer positioning component 435 includes a lifting drive component and a buffer section. The fixed end of the lifting drive component is disposed on the lower support component 431, and the output end of the lifting drive component is connected to the buffer section. It is used to drive the buffer section to move vertically towards or away from the carrier 450, thereby adjusting the rhythm of the carrier 450's movement from the second slide rail 432 to the lifting structure 440 located downstream of the conveyor belt. The lifting drive component includes, but is not limited to, a linear cylinder. It should be noted that the number and specific distribution of the buffer positioning components 435 can be designed according to actual needs; this embodiment does not impose specific limitations on this.

[0113] Understandably, the buffer positioning component 435 is located on the side of the lower support component 431 away from the conveyor belt and near the end of the lower support component 431. When the lifting structure 440, located downstream of the conveyor belt, connects to the upper conveyor line, the buffer part moves upward via the lifting drive component and engages with the carrier 450, thereby triggering the conveyor belt to pause. The buffer part then moves downward via the lifting drive component and disengages from the carrier 450, allowing the conveyor belt to restart. This ensures a smooth docking of the carrier 450 with the lifting structure 440, providing additional safety, reducing downtime caused by adjusting the position of the carrier 450, and improving the overall operating efficiency of the testing equipment.

[0114] In some embodiments, such as Figure 3 As shown, the lifting structure 440 includes a lifting support 441 and a lifting drive. The lifting support 441 is provided with a third slide rail 442 that slides with the carrier 450. The fixed end of the lifting drive is provided on the conveyor frame 410, and the driving end of the lifting drive is connected to the lifting support 441. It is used to drive the lifting support 441 to move in the vertical direction so that the third slide rail 442 is engaged with one of the first slide rail 422 and the second slide rail 432, and the third slide rail 442 is disengaged from the other of the first slide rail 422 and the second slide rail 432.

[0115] It is understood that the carrier 450 is slidably engaged with the third slide rail 442 via the conveying slider 460. 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 drive to connect with the first slide rail 422, it is convenient for the carrier 450 located at the end of the first slide rail 422 to slide into the third slide rail 442 via the connecting member 423, or for the carrier 450 on the third slide rail 442 to slide into the first slide rail 422 via the connecting member 423. Similarly, when the third slide rail 442 is driven downward by the lifting drive to connect with the second slide rail, the carrier 450 located at the end of the second slide rail 432 can slide into the third slide rail 442 via the actuating element 434, or the carrier 450 on the third slide rail 442 can slide into the second slide rail 432 via the actuating element 434. This enables the automatic docking of the carrier 450 between the upper and lower conveyor lines, ensuring stability and safety during the transfer of the carrier 450 and improving conveying efficiency.

[0116] In some embodiments, such as Figure 2 As shown, the conveying mechanism 400 also includes a plurality of first sensors 470 and a plurality of first proximity sensors 480. Each first sensor 470 corresponds to and is connected to a carrier 450. The upper conveyor line, lower conveyor line, and lifting structure 440 are all equipped with first proximity sensors 480. The first proximity sensors 480 are used to sense whether the corresponding carrier 450 is in position based on the first sensors 470. For example, the first proximity sensors 480 can be electromagnetic, photoelectric, ultrasonic, or other types of sensors, capable of sensing the presence of the first sensors 470 and sending a position signal to the host computer.

[0117] Understandably, each carrier 450 is equipped with a corresponding first sensor 470, which sends a signal to the nearest first proximity sensor 480 when it moves to each detection station of the upper conveyor line, the end of the lower conveyor line, or the third slide rail 442. This allows the host computer to accurately monitor the position of the carrier 450 in real time, reducing downtime caused by waiting for the carrier 450 to arrive, improving production efficiency, helping to avoid collisions between carriers 450, reducing reliance on manual monitoring, lowering the possibility of human error, optimizing the conveying and detection process, improving overall production efficiency, and achieving more intelligent and automated detection operations.

[0118] In some embodiments, such as Figure 3 As shown, a first QR code is provided on the carrier 450; the conveying mechanism 400 also includes a first barcode scanner 490, which is located near the end of the upper conveyor line and is communicatively connected to a first proximity sensor 480 for scanning and identifying the first QR code on the carrier 450 in place.

[0119] Understandably, each carrier 450 is equipped with a unique first QR code containing information related to the carrier 450, such as the carrier number and type. The first barcode scanner 490 is located outside the upper conveyor line and above the lifting support 441. It automatically triggers the scanning operation when the first proximity sensor 480 detects the carrier 450 in place, realizing automatic identification and information reading of the carrier 450 without manual intervention. This provides an accurate and error-free data input method, reduces reliance on manual operation, lowers the risk of human error, improves the response speed and accuracy of the entire conveyor mechanism 400, and also enables monitoring and detection of the current status of the bare battery cells 900 carried by the carrier 450.

[0120] In this embodiment, as Figure 3 As shown, the first barcode scanner 490 is mounted on one of the lifting support members 441.

[0121] In some embodiments, such as Figure 5 and Figure 6 As shown, the carrier 450 includes a base 451, a mounting member, and at least a pair of movable members 453. The base 451 is movably disposed on the circulating conveyor line. The mounting member is disposed on the base 451 and is used to support the main body. The movable member 453 is movably disposed on the base 451 and has a first state and a second state. In the first state, the movable member 453 is disengaged from the main body, and in the second state, the movable member 453 elastically abuts against the top surface of the main body.

[0122] Understandably, the bottom surface of the base 451 is equipped with a conveyor slider 460, and the top surface of the base 451, outside the mounting component, is equipped with a first QR code. When the movable part 453 is in the first state, it is disengaged from the main body, facilitating the inspection of the bare battery cell 900 at the inspection station and reducing the impact of the movable part 453 on the normal inspection of the bare battery cell 900. When the movable part 453 is in the second state, it abuts against the top surface of the main body, ensuring the stability of the bare battery cell 900 during transport on the upper conveyor line and reducing safety risks caused by movement, tilting, or detachment of the bare battery cell 900 from the mounting component. Furthermore, the movable part 453 can elastically abut against the main body, automatically adjusting according to the different size requirements of the bare battery cell 900, while reducing hard contact and friction between the two, minimizing the possibility of surface damage to the bare battery cell 900, and improving the inspection pass rate.

[0123] In some embodiments, such as Figure 5 and Figure 6As shown, the mounting component includes a mounting block 4521 and two adjusting blocks 4522. The mounting block 4521 is disposed on the base 451 and forms a first groove and two second grooves 45212. The first groove extends through the surface of the mounting block 4521 along the length direction of the bare cell 900, and the bottom of the first groove at least partially abuts against the bottom surface of the main body. The second grooves 45212 extend through the surface of the mounting block 4521 along the vertical direction, and the two second grooves 45212 are arranged opposite each other with their openings facing away from each other. The two adjusting blocks 4522 correspond one-to-one with the second grooves 45212, and the adjusting blocks 4522 are adjustablely positioned within the second grooves 45212 along the width direction of the bare 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 impose specific limitations on this.

[0124] It is understood that the main body is placed in the first groove, and the first groove extends through the mounting block 4521 along its length, thereby enabling the mounting component to support the bare battery cell 900 while avoiding the tabs of bare battery cells 900 of different lengths. Two second grooves 45212 are respectively located on both sides of the mounting block 4521 along the width direction of the bare battery cell 900, thus making the mounting block 4521 I-shaped. Simultaneously, by adjusting the installation positions of the two adjusting blocks 4522 along the width direction of the bare battery cell 900 within the second grooves 45212, i.e., the distance between the bottom of the adjusting blocks 4522 and the second grooves 45212 is adjustable and suitable for contact with the bare battery cell 900, it can accommodate bare battery cells 900 of different widths. The mounting component can accommodate bare battery cells 900 of different sizes, ensuring stable placement of the bare battery cell 900 on the mounting component and improving the versatility and flexibility of the carrier 450.

[0125] In some embodiments, such as Figure 5 and Figure 6 As shown, one of the adjusting block 4522 and the base 451 is provided with a first connecting hole in the shape of an elongated strip, and the other of the adjusting block 4522 and the base 451 is provided with multiple second connecting holes. The second connecting holes are screwed to the first connecting holes, that is, the first connecting holes extend along the width direction of the bare cell 900. By screwing different second connecting holes to the first connecting holes, the installation position of the adjusting block 4522 can be adjusted to accommodate bare cells 900 of different widths, thereby improving the versatility and adaptability of the carrier 450.

[0126] In some embodiments, such as Figure 5 and Figure 6As shown, a limiting part 4523 is provided on the side of the adjusting block 4522 away from the base 451. The limiting part 4523 is located on the side of the adjusting block 4522 near the bottom of the corresponding second groove 45212. The inner wall of the first groove abuts against the side part of the main body. And / or the two sides of the two limiting parts 4523 that are close to each other abut against the side part of the main body.

[0127] It is understood that the top surface of the limiting part 4523 protrudes from the top surface of the adjusting block 4522, and the limiting part 4523 is located at the end of the adjusting block 4522 near the middle of the mounting block 4521. This allows at least one of the inner sidewall of the first groove and the side of the limiting part 4523 to fit together when the bottom surface of the main body and the bottom of the first groove are in contact. This provides a limiting for the bare cell 900 along its width direction, ensuring the precise positioning of the bare cell 900 in the mounting component, reducing the possibility of displacement of the bare cell 900 during transportation and testing, and enhancing the stability of the bare cell 900 in the mounting component.

[0128] In some embodiments, such as Figure 5 and Figure 6 As shown, the mounting component also includes an extension block 4524, which is disposed on the base 451 and located outside the mounting block 4521. The extension block 4524 forms a third groove that communicates with the first groove. The third groove extends through the surface of the extension block 4524 along the length direction of the bare cell 900. The bottom of the third groove abuts against the bottom surface of the main body, and the inner sidewall of the third groove is adapted to abut against the side surface of the main body. The connection method between the extension block 4524 and the base 451 includes, but is not limited to, threaded connection or snap-fit ​​connection.

[0129] Understandably, the extension block 4524 and the mounting block 4521 are spliced ​​along the length of the bare cell 900, thereby increasing the contact area with the bare cell 900 to accommodate bare cells 900 of different lengths, thus improving the versatility and adaptability of the carrier 450.

[0130] In this embodiment, as Figure 5 and Figure 6 As shown, there are two extension blocks 4524, and the two extension blocks 4524 are respectively connected to the two sides of the mounting component that are opposite to each other along the length direction of the bare cell 900.

[0131] In some embodiments, such as Figure 5 and Figure 6 As shown, the carrier 450 also includes a first reinforcing plate 454. The bottom surface of the first reinforcing plate 454 is connected to the bottom of the first groove and the bottom of the third groove, respectively. The top surface of the first reinforcing plate 454 is used to support the main body.

[0132] It is understandable that part of the first reinforcing plate 454 is set in the first groove and the other part is set in the third groove. That is, the main body is indirectly connected to the mounting block 4521 and the extension block 4524 through the reinforcing plate. The first reinforcing plate 454 makes the connection between the mounting block 4521 and the reinforcing block more stable, enhances the overall stability of the carrier 450, enables it to withstand heavier loads, and ensures that the bare cell 900 has stable support in the entire length direction.

[0133] In some embodiments, such as Figure 5 and Figure 6 As shown, the carrier 450 also includes two second reinforcing plates 455, which are respectively disposed on the sides of the base 451 opposite each other along the length direction of the bare cell 900. The second reinforcing plates 455 extend along the length direction of the bare cell 900 to abut against the bottom surface of the main body. For example, the second reinforcing plates 455 are L-shaped.

[0134] Understandably, the two second reinforcing plates 455 are respectively disposed on the sides of the base 451 that are opposite each other along the length of the bare cell 900. That is, the top surface of the second reinforcing plate 455 and the top surface of the first reinforcing plate 454 are spliced ​​together to form a continuous plane, thereby providing additional support for the bare cell 900 and ensuring the stability of the bare cell 900 during transportation and testing.

[0135] In some embodiments, such as Figure 5 and Figure 6 As shown, the carrier 450 also includes two elastic members and two rotary drive members 456. The elastic members and rotary drive members 456 correspond to each other and are connected. The fixed end of the rotary drive member 456 is installed on the base 451, and the output end of the rotary drive member 456 is connected to the corresponding movable member 453 to drive the movable member 453 to rotate around the upper and lower axes, so as to realize the switching of the movable member 453 between the first state and the second state.

[0136] In some embodiments, such as Figures 7 to 9 As shown, the conveying mechanism 500 includes a gripper assembly 520, a conveying drive assembly 510, and a limiting assembly. The gripper assembly 520 has a gripping state for gripping bare battery cells 900 of various sizes. The output end of the conveying drive assembly 510 is 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 battery cell 900. The limiting assembly is disposed between the conveying drive assembly 510 and the gripper assembly 520 and is used to limit the movement range of the gripper assembly 520.

[0137] Understandably, the transport drive assembly 510 moves the gripper assembly 520 downwards and closer to the bare battery cell 900. At this point, the clamping space increases to allow the bare battery cell 900 to enter the clamping space. Subsequently, the clamping space is adjusted to decrease to fix the bare battery cell 900. Then, the transport drive assembly 510 moves the gripper assembly 520 to the inspection station, achieving rapid and precise clamping and release actions, improving transport efficiency, shortening the production cycle, reducing the need for manual handling, and lowering labor intensity and the risk of operational errors. Simultaneously, the gripper assembly 520 has a clamping state suitable for holding bare battery cells 900 of various sizes; that is, the clamping space is adjustable and can accommodate different sizes of bare battery cells 900, improving the versatility of the transport mechanism 500. Furthermore, a limiting component is positioned between the transport drive assembly 510 and the gripper assembly 520 to limit the movement range of the gripper assembly 520, thereby ensuring that the gripper assembly 520 always moves within a safe and preset range, reducing the risk of damage to the transport mechanism 500 and the bare battery cell 900.

[0138] In some embodiments, such as Figures 7 to 9 As shown, the gripper assembly 520 includes a gripper mounting base 521, two opposing gripper connectors 522, and a clamping member 523. The gripper mounting base 521 is connected to the output end of the conveying drive assembly 510. The gripper connectors 522 are disposed on the gripper mounting base 521, and the distance between the two gripper connectors 522 along the width direction of the bare cell 900 is adjustable. Each gripper connector 522 is provided with at least one clamping member 523, and a clamping space is formed between all the clamping members 523. The installation position of the clamping member 523 along the length direction of the bare cell 900 is adjustable.

[0139] Understandably, the distance between the two gripper connectors 522 along the width direction of the bare cell 900 is adjustable, thereby changing the distance between the corresponding clamping members 523 along the width direction of the bare cell 900 to accommodate bare cells 900 of different widths. The mounting position of the clamping member 523 on the corresponding gripper connector 522 along the length direction of the bare cell 900 is adjustable to accommodate bare cells 900 of different widths, thus achieving adjustable clamping space and accurately clamping the bare cell 900, reducing vibration and movement of the bare cell 900 during handling.

[0140] In some embodiments, such as Figure 7 and Figure 9As shown, the bottom surface of the gripper mounting base 521 is provided with a fourth slide rail 5211 extending along the width direction of the bare cell 900, and the top surface of the gripper connector 522 is provided with a matching slider that cooperates with the fourth slide rail 5211, so that the gripper connector 522 can be movably mounted on the gripper mounting base 521 along the width direction of the bare cell 900, thereby realizing the width between the two gripper connectors 522 is adjustable.

[0141] In some embodiments, such as Figures 7 to 9 As shown, one of the gripper connector 522 and the clamping member 523 is provided with a third connecting hole 5221 in the shape of an elongated strip, and the other of the gripper connector 522 and the clamping member 523 is provided with multiple fourth connecting holes. The third connecting hole 5221 and the fourth connecting holes are screwed together, that is, the third connecting hole 5221 extends along the length direction of the bare cell 900. By screwing together different fourth connecting holes and the third connecting hole 5221, the installation position of the clamping member 523 can be adjusted to accommodate bare cells 900 of different lengths, thereby improving the versatility and adaptability of the gripper assembly 520.

[0142] In this embodiment, the third connecting hole 5221 is disposed on the gripper connector 522 and the clamping member 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 impose specific limitations on this.

[0143] In some embodiments, such as Figures 7 to 9 As shown, the clamping member 523 is located on the side where the two clamping jaw connectors 522 are close to each other, and the two clamping jaw connectors 522 are provided with adjustment scale lines on the side facing away from each other, and the adjustment scale lines extend along the length direction of the bare cell 900.

[0144] Understandably, the third connection hole 5221 is provided with an adjustment scale line extending along the length of the bare cell 900, which facilitates quick and precise adjustment of the clamping member 523 according to different sizes of the bare cell 900, improving the convenience and accuracy of operation and helping to improve handling efficiency.

[0145] In some embodiments, such as Figures 7 to 9 As shown, multiple clamping members 523 are provided, and these clamping members 523 are spaced apart along the length direction of the bare battery cell 900, thereby increasing the contact area with the bare battery cell 900. This ensures that the bare battery cell 900 is uniformly supported along its length, reduces local pressure on the bare battery cell 900, and enhances the stability of the bare battery cell 900 during handling. For example, each gripper connector 522 is provided with four clamping members 523.

[0146] In some embodiments, such as Figure 9As shown, the clamping member 523 includes a vertical section 5231 and a horizontal section 5232. The upper end of the vertical section 5231 is connected to the jaw connector 522 and is suitable for abutting and engaging with the bare battery cell 900. One end of the horizontal section 5232 is connected to the lower end of the vertical section 5231 and extends along the width direction of the bare battery cell 900 to support the bare battery cell 900.

[0147] It is understandable that the upper end of the vertical section 5231 is connected to the gripper connector 522, and the lower end is connected to the horizontal section 5232. That is, the clamping member 523 is L-shaped. Therefore, the vertical section 5231 can abut against the side of the main body, and the horizontal section 5232 can abut against the bottom of the main body, thereby providing stable lateral and vertical support and reducing the risk of physical damage to the bare cell 900.

[0148] In some embodiments, such as Figures 7 to 9 As shown, the bottom of the clamping member 523 is provided with a rubber coating layer, that is, the top surface of the horizontal section 5232 and the lower part of the vertical section 5231 are both provided with a rubber coating layer. By utilizing the good elasticity and friction coefficient of the rubber coating layer, the friction between the clamping member 523 and the bare battery cell 900 can be enhanced, the clamping stability can be improved and the bare battery cell 900 can be protected, damage and maintenance costs can be reduced, and the overall production efficiency and product quality can be improved.

[0149] In some embodiments, such as Figures 7 to 9 As shown, the gripper assembly 520 also includes an in-use laser sensor 524, which includes a laser emitter and a laser receiver. The laser emitter and the laser receiver are respectively located outside the two gripping members 523 corresponding to the two gripper connectors 522.

[0150] Understandably, the laser emitter is responsible for emitting a laser beam to detect or measure the distance between itself and the bare battery cell 900, ensuring 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 by the laser sensor 524, it is possible to accurately determine whether the bare battery cell 900 is clamped, reducing the possibility of over-clamping or incorrect clamping, ensuring the stability and safety of the bare battery cell 900 during handling, while improving production efficiency and ease of operation.

[0151] In some embodiments, such as Figure 7 and Figure 8As shown, the conveying drive assembly 510 includes a first linear drive unit 511 and a second linear drive unit. The fixed end of the second linear drive unit is connected to the output end of the first linear drive unit 511. The first linear drive unit 511 drives the second linear drive unit to move in the vertical direction. The output end of the second linear drive unit is connected to the gripper mounting base 521 of the gripper assembly 520. The second linear drive unit drives the gripper mounting base 521 to move along the width direction of the bare battery cell 900. Exemplarily, the first linear drive unit 511 includes, but is not limited to, a linear motor guide rail.

[0152] Understandably, the combined use of the first linear drive unit 511 and the second linear drive unit provides precise vertical and horizontal movement control for the gripper assembly 520, ensuring that the gripper assembly 520 can accurately position the bare cell 900, thereby improving the automation level of the entire bare cell testing equipment and reducing reliance on manual operation.

[0153] In some embodiments, such as Figure 7 and Figure 8 As shown, the second linear drive unit includes a connecting seat 5121, a mating member 5122, and a driver 5123. The connecting seat 5121 is connected to the output end of the first linear drive unit 511 and has a through groove 51211 extending along the width direction of the bare cell 900. The mating member 5122 passes through the through groove 51211 and one end extends out of the through groove 51211 and is connected to the gripper mounting seat 521. The fixed end of the driver 5123 is disposed on the connecting seat 5121, and the output end of the driver 5123 is connected to the other end of the mating member 5122. Exemplarily, the driver 5123 includes, but is not limited to, a ball screw motor.

[0154] Understandably, the driver 5123 receives instructions from the host computer to drive the mating part 5122 to move along the width direction of the bare cell 900 within the through slot 51211, thereby causing the gripper mounting base 521 to move along the width direction of the bare cell 900. This enables rapid and precise adjustment of the gripper position, improving handling efficiency and shortening the production cycle. Simultaneously, by having the mating part 5122 pass through the through slot 51211, the vertical dimensions of the entire handling mechanism 500 become more compact.

[0155] In some embodiments, such as Figures 7 to 9 As shown, the limiting component includes a first limiting member 531 and a second limiting member 532. The first limiting member 531 is disposed on the gripper connector 522; the second limiting member 532 is disposed on the gripper connector 522, and the first limiting member 531 and the second limiting member 532 respectively protrude from the two sides of the gripper connector 522 that are disposed opposite to each other along the length direction of the bare cell 900.

[0156] It is understandable that the first limiting member 531 and the second limiting member 532 are respectively disposed on both sides of the gripper connector 522 along the length direction of the bare battery cell 900, so that when the gripper assembly 520 moves, it will contact the bare battery cell 900 and other components first, thereby protecting the bare battery cell 900 and ensuring the stability and safety of the bare battery cell 900 during the handling process.

[0157] In some embodiments, such as Figures 7 to 9 As shown, there are two first limiting members 531, each corresponding to a gripper connector 522, 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 disposed on the gripper connector 522 and extends along the length direction of the bare cell 900. One end of the second connecting segment 5322 is connected to the other end of the first connecting segment 5321 and extends in the vertical direction. One end of the third connecting segment 5323 is connected to the other end of the second connecting segment 5322 and extends along the width direction of the bare cell 900 to be spaced apart from the end of the bare cell 900.

[0158] Understandably, the two first limiting members 531 are respectively positioned on the two gripper connectors 522 and above the second limiting member 532, thereby avoiding interference with the process of the bare cell 900 entering the clamping space. Simultaneously, the first connecting segment 5321, the second connecting segment 5322, and the third connecting segment 5323, connected sequentially from top to bottom, form the second limiting member 532, and space the third connecting segment 5323 from the outer end of the electrode tab, reducing the risk of damage to the bare cell 900 due to operational errors and improving the safety of the bare cell 900.

[0159] In some embodiments, such as Figure 8 As shown, the limiting assembly also includes a second sensing element 533 and two second proximity sensors 534. The second sensing element 533 is disposed on the side of the mating member 5122 away from the driver 5123; the second proximity sensors 534 are disposed on the connecting seat 5121, and the two second proximity sensors 534 are respectively close to the two ends of the through groove 51211. Exemplarily, the second proximity sensors 534 can be electromagnetic, photoelectric, ultrasonic, or other types of sensors, which can sense the presence of the second sensing element 533 and send a position signal to the host computer.

[0160] Understandably, by detecting the position of the current mating part 5122 through the second proximity sensor 534, it is possible to determine whether the movement of the gripper assembly 520 along the width direction of the bare cell 900 has reached its maximum. This helps to avoid collisions between the bare cell 900 and other components, ensuring the stability and safety of the bare cell 900 during handling, while also improving production efficiency and ease of operation.

[0161] In some embodiments, such as Figure 1 and Figure 2 As shown, the 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 body inspection device includes two main body inspection mechanisms 110, a moving mechanism 120, and a third main body inspection mechanism. One of the two main body inspection mechanisms 110 is located at the first inspection station and is used to obtain a top surface image of the main body. The fixed end of the moving mechanism 120 is set on the conveyor frame 410 of the conveying mechanism 400, and the output end of the moving mechanism 120 is connected to the main body inspection mechanism 110 located at the first inspection station and is used to drive the main body inspection mechanism 110 to move along a conveying direction perpendicular to the upper conveyor line. The other of the two main body inspection mechanisms 110 is set on the conveyor frame 410 and located at the second inspection station and is used to obtain a bottom surface image of the main body. 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 a side surface image of the main body. The handling mechanism 500 is used to move the bare battery cell 900 from the second inspection station toward or away from the upper conveyor line.

[0162] It is understood that when the transport mechanism 500 clamps the bare battery cell 900 and moves it towards the end near the upper conveyor line, the main body inspection mechanism 110 and the third main body inspection mechanism located at the second inspection station respectively obtain the bottom surface image and the side surface image of the main body; then the transport mechanism 500 transfers the bare battery cell 900 onto the carrier 450, and the moving mechanism 120 drives the main body inspection mechanism 110 located at the first inspection station to move along the conveying direction to obtain the top surface image of the main body. Exemplarily, the moving mechanism 120 includes, but is not limited to, a lead screw module.

[0163] In some embodiments, such as Figure 10 and Figure 11 As shown, the main body detection mechanism 110 includes a detection frame 111, a first light source 112, two second light sources 113, and a first camera assembly 114. The first light source 112 is arbitrarily mounted on the detection frame 111. The second light sources 113 are arbitrarily mounted on the detection frame 111 and are located on the same side of the main body along the vertical direction as the first light source 112. The first light source 112 is located between the two second light sources 113, and the light emitted by the first light source 112 and the two second light sources 113 converges on a straight line. The first camera assembly 114 is arbitrarily mounted on the detection frame 111, and the first light source 112 is located between the first camera assembly 114 and the main body.

[0164] Understandably, the inspection frame 111 serves to fix the first light source 112, the second light source 113, and the first camera assembly 114. The first light source 112 and the second light source 113 are both mounted on the inspection frame 111 in adjustable positions, which facilitates the adaptation to the illumination range required for the inspection of bare battery cells 900 of different sizes. 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 rays converge on a straight line, which can provide more uniform illumination, reduce shadow and highlight areas, and show as many minor defects such as scratches or dents on the surface of the bare battery cell 900 as possible. This makes 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) more obvious, thereby improving inspection efficiency, inspection accuracy, and automation level.

[0165] In some embodiments, such as Figure 10 and Figure 11 As shown, the main detection mechanism 110 further includes a first support plate and at least one first fixing member 115. A first light source 112 is disposed on the first support plate. One of the detection frame 111 and the first support plate forms at least one first sliding groove 1111, which extends in a vertical direction. The other of the detection frame 111 and the first support plate forms a plurality of first mounting holes. Each first sliding groove 1111 corresponds to at least one first fixing member 115, and one end of the first fixing member 115 passes through the corresponding first sliding groove 1111 and is threadedly connected to the first mounting hole. Exemplarily, the first fixing member 115 includes, but is not limited to, screws.

[0166] It is understood that by using different first mounting holes and first sliding grooves 1111 to match, the height of the first light source 112 can be adjusted to meet the testing requirements of bare battery cells 900 of different sizes, thereby improving the response speed and operating efficiency of the main testing mechanism 110. 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 needs, and this embodiment does not impose specific limitations on them.

[0167] In this embodiment, as Figure 10 and Figure 11 As shown, the first mounting hole is provided on the first support plate, the first slide groove 1111 is provided on the testing frame 111, and two first slide grooves 1111 are respectively provided on both sides of the testing frame 111.

[0168] In some embodiments, such as Figure 10 and Figure 11 As shown, the testing frame 111 is provided with a first scale line, which is close to the first slide groove 1111 and extends in the vertical direction, so as to accurately and quickly adjust the vertical position of the first light source 112, realize the standardized testing process, and improve the testing efficiency and ease of operation.

[0169] In some embodiments, such as Figure 10 and Figure 11 As shown, the detection frame 111 forms a second slide groove 1112 and a third slide groove 1113 spaced apart. The extension directions of the second slide groove 1112 and the third slide groove 1113 are parallel, and the extension direction of the second slide groove 1112 is set at an acute angle to the vertical direction. The main detection mechanism 110 also includes a first rotating shaft 1131, a first positioning member 116, and a plurality of second fixing members 117. One end of the first rotating shaft 1131 is connected to the second light source 113, and the other end of the first rotating shaft 1131 is slidably hinged to the second slide groove 1112. The first positioning member 116 is sleeved on the first rotating shaft 1131 and forms a plurality of second mounting holes. The third slide groove 1113 corresponds to at least one second fixing member 117, and one end of the second fixing member 117 passes through the corresponding third slide groove 1113 and is connected to the second mounting hole.

[0170] It is understandable that the second slide 1112 and the third slide 1113 are set at acute angles to the vertical direction, thereby enabling multi-directional adjustment of the second light source 113 within a small space. At the same time, since the second light source 113 is slidably hinged relative to the second slide 1112 through the first rotating shaft 1131, the angle of the second light source 113 can be adjusted. The second fixing member 117 passes through the third slide 1113 and the second mounting hole in sequence to connect with the second light source 113, thereby fixing the current position of the second light source 113. This provides a flexible, stable and easy-to-maintain adjustment method for the second light source 113, improving the efficiency and accuracy of subject detection.

[0171] In this embodiment, as Figure 10 and Figure 11 As shown, each of the second light sources 113 has a first rotating shaft 1131 on both sides of its opposite arrangement. The first positioning member 116, the second slide groove 1112 and the first rotating shaft 1131 correspond one-to-one. Each of the second slide grooves 1112 has two third slide grooves 1113 on both sides to ensure that the second light source 113 can stably maintain its current position after adjustment.

[0172] In some embodiments, such as Figure 10 and Figure 11 As shown, the surface of the first positioning member 116 near the second slide groove 1112 is provided with circumferential scale lines, which facilitates quick and accurate adjustment of the angle of the second light source 113, realizes a standardized testing process, and improves testing efficiency and ease of operation.

[0173] In some embodiments, such as Figure 10 and Figure 11As shown, the surface of the testing frame 111 near the third slide 1113 is provided with a second scale line. The extension direction of the second scale line is parallel to the extension direction of the third slide 1113, which facilitates the quick and accurate adjustment of the vertical and horizontal positions of the second light source 113, realizes a standardized testing process, and improves testing efficiency and ease of operation.

[0174] In some embodiments, such as Figure 11 As shown, the testing frame 111 forms a fourth slide groove 1114 that corresponds one-to-one with the first positioning member 116. The extension direction of the fourth slide groove 1114 is parallel to the extension direction of the second slide groove 1112. The second slide groove 1112 and the third slide groove 1113 are both located at the bottom of the fourth slide groove 1114. The outer wall of the first positioning member 116 and the inner wall of the fourth slide groove 1114 are in contact.

[0175] It is understood that the testing frame 111 includes two opposing side plates, and the second light source 113 is located between the two side plates. The side plates that are close to each other form a fourth slide groove 1114 for accommodating the first positioning member 116, thereby ensuring that the first positioning member 116 can slide smoothly in the fourth slide groove 1114 during the adjustment of the second light source 113, thus achieving the stability of the second light source 113 during the adjustment process.

[0176] In some embodiments, such as Figure 10 and Figure 11 As shown, the main detection mechanism 110 also includes a second support plate and at least one third fixing member. A first camera assembly 114 is disposed on the second support plate. One of the detection frame 111 and the second support plate forms at least one fifth sliding groove 1115, which extends vertically. The other of the detection frame 111 and the second support plate forms a plurality of third mounting holes. Each fifth sliding groove 1115 corresponds to at least one third fixing member, and one end of the third fixing member passes through the corresponding fifth sliding groove 1115 and is threadedly connected to the third mounting hole. Exemplarily, the first camera assembly 114 includes, but is not limited to, a camera and a lens.

[0177] It is understood that by using different third mounting holes and fifth sliding grooves 1115, the height of the first camera assembly 114 can be adjusted to meet the testing requirements of bare battery cells 900 of different sizes, thereby improving the response speed and operational efficiency of the main testing mechanism 110. It should be noted that the number and size of the fifth sliding groove 1115 and the third mounting holes can be designed according to actual needs, and this embodiment does not impose specific limitations on this.

[0178] In this embodiment, as Figure 10 and Figure 11As shown, the third mounting hole is provided on the second support plate, the fifth slide groove 1115 is provided on the testing frame 111, and two fifth slide grooves 1115 are provided on both sides of the testing frame 111.

[0179] In some embodiments, such as Figure 10 and Figure 11 As shown, the inspection frame 111 is provided with a third scale line, which is close to the fifth slide groove 1115 and extends in the vertical direction, so as to accurately and quickly adjust the vertical position of the first camera assembly 114, realize the standardized inspection process, and improve the inspection efficiency and ease of operation.

[0180] In some embodiments, such as Figure 10 As shown, the main detection mechanism 110 also includes a protective cover 118, which is disposed on the detection frame 111. In the vertical direction, the projection of the protective cover 118 and the projection of the detection frame 111 together form a closed structure. The projections of the first light source 112, the second light source 113, and the first camera assembly 114 are all located within the closed structure.

[0181] It is understandable that the projection of the protective cover 118 and the projection of the detection frame 111 together form a closed structure. This means that the protective cover 118 completely covers the detection frame 111, forming a sealed space, which in turn protects the first camera assembly 114, the first light source 112 and the second light source 113, reducing the possibility of accidental touch or operation.

[0182] In some embodiments, such as Figure 10 As shown, the main detection mechanism 110 also includes a dust removal structure 119, which is disposed on the detection frame 111 to reduce the contamination of the first light source 112, the second light source 113, and the first camera assembly 114 by dust and particulate matter, thereby preventing these contaminants from affecting image quality and detection results. Exemplarily, the dust removal structure 119 includes, but is not limited to, a filter unit, a guide plate, a dust removal component, and a dust discharge component, etc., and this embodiment does not impose specific limitations on these components.

[0183] In some embodiments, the first light source 112 is a coaxial light source, and the second light source 113 is a strip light source.

[0184] Understandably, the light emitted by the coaxial light source coincides with the lens axis of the first camera assembly 114, illuminating the surface of the object being photographed to reduce shadows and reflections, and to reduce glare caused by light directly reflecting off the camera lens. Combined with a strip light source, this provides a wider illumination area, significantly improving image quality and thus enhancing the accuracy and reliability of the detection results.

[0185] In some embodiments, such as Figure 1 and Figure 2 As shown, the third subject detection mechanism includes two opposing third camera assemblies 131. The subject detection mechanism 110 located at the second detection station is situated between the two third camera assemblies 131. The two third camera assemblies 131 are respectively used to capture images of both sides of the subject along the width direction to obtain side images of the subject. Exemplarily, the third camera assembly 131 includes a camera and a lens.

[0186] In some embodiments, such as Figure 1 and Figure 2 As shown, 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.

[0187] Understandably, the third inspection station is located on the upper conveyor line, which facilitates direct inspection of the bare battery cell 900 during transport, improving inspection efficiency and continuity. Specifically, the bare battery cell 900 is held by the transport mechanism 500 and sequentially passes through the second and fourth inspection stations to obtain images of the tab misalignment, the bottom surface of the main body, and the side surface of the main body. Then, the transport mechanism 500 transfers the bare battery cell 900 onto the carrier 450, allowing it to sequentially pass through the first and third inspection stations to obtain images of the top surface of the main body, the side surface of the tab, and the end surface of the tab.

[0188] In some embodiments, such as Figure 12 As shown, a second QR code is provided on the bare battery cell 900. The electrode misalignment detection mechanism 200 includes a fixture 210, a second camera assembly 220, a third light source, and a second barcode scanner 230. The fixture 210 is used to support the bare battery cell 900. The second camera assembly 220 is disposed above the fixture 210. The third light source is disposed on the fixture 210 and located below the electrode. The second barcode scanner 230 is disposed above the fixture 210 and is used to scan and identify the second QR code of the bare battery cell 900 placed in the fixture 210.

[0189] Understandably, the handling mechanism 500 places the bare battery cell 900 on the fixture 210, and the third light source is set on the fixture 210 and located below the electrode tab, thereby providing backlight for the electrode tab, enhancing the contrast of the electrode tab outline, and making the judgment of whether the electrode tab is misaligned more accurate; at the same time, the second barcode scanner 230 scans the second QR code on the bare battery cell 900, which can automatically collect the information of the bare battery cell 900, enhance the quality control and traceability of the product, and improve the detection efficiency.

[0190] In some embodiments, such as Figure 1 and Figure 2As shown, the length direction of the bare cell 900 on the fixture 210 is parallel to the length direction of the bare cell on the carrier 450, so as to further reduce the footprint of the entire bare cell testing equipment and make the entire bare cell testing equipment as compact as possible.

[0191] In some embodiments, such as Figure 1 and Figure 2 As shown, the electrode surface detection mechanism includes two electrode side detection structures 310 and two electrode end face detection structures 320. The two electrode side detection structures 310 are arranged opposite to each other and are used to photograph the two sides of the electrode that are arranged opposite to each other along the width direction of the bare cell 900. The two electrode end face detection structures 320 are arranged opposite to each other and are used to photograph the end face of the electrode that is away from the main body.

[0192] It is understood that there are three third inspection stations, which are spaced apart along the conveying direction of the upper conveyor line. Two tab side inspection structures 310 are located at two of the third inspection stations, and two tab end face inspection structures 320 are located on both sides of the other inspection station. That is, the carrier 450 passes through two of the inspection stations in sequence to obtain tab side images corresponding to the two opposite sides of the tabs on both sides of the main body. The carrier 450 passes through the other inspection station to obtain tab end face images corresponding to the end faces of the tabs on both sides of the main body that are away from the main body. This realizes an efficient, comprehensive and automated inspection method, which helps to improve the accuracy and efficiency of the inspection process.

[0193] It should be noted that in this embodiment, the main body is provided with tabs on both sides along its length, that is, two tab end face detection structures 320 need to be provided. Of course, in other embodiments, the number and specific distribution of the tab end face structures can be adjusted according to the arrangement of the tabs, and this embodiment does not impose specific restrictions on this.

[0194] In some embodiments, such as Figure 13 and Figure 14 As shown, the electrode side detection structure 310 includes a mounting frame 311 and two opposing first imaging components 312. The mounting frame 311 is disposed on the conveyor frame 410; the first imaging components 312 are disposed on the mounting frame 311 and their installation positions are adjustable along the length direction of the bare cell 900.

[0195] Understandably, the mounting bracket 311 is mounted on the conveyor frame 410 and provides stable support for the first imaging component 312. The mounting position of the first imaging component 312 along the length of the bare cell 900 can be adjusted to accommodate bare cells 900 of different lengths, ensuring that the first imaging component 312 can be correctly aligned with the side of the electrode tab for imaging.

[0196] In some embodiments, such as Figure 14As shown, the first imaging component 312 includes a first connector 3121, a prism 3122, a first imaging unit 3123, and two fourth light sources 3124 located on opposite sides of the bare battery cell 900 along the vertical direction. The first connector 3121 is adjustablely mounted on the mounting frame 311 along the length of the bare battery cell 900. The prism 3122 is mounted on the first connector 3121, and its mounting position along the width of the bare battery cell 900 is adjustable, as is the angle between the prism 3122 and the bare battery cell 900. The first imaging unit 3123 is adjustablely mounted on the mounting frame 311. The two fourth light sources 3124 are respectively mounted on the mounting frame 311 and the first connector 3121, and both their mounting position and angle are adjustable. For example, the first imaging unit 3123 may include, but is not limited to, a camera and a lens.

[0197] Understandably, the fourth light source 3124 illuminates the tab, and the image of the tab is projected onto the first imaging unit 3123 via the prism 3122 to obtain a side image of the tab. Simultaneously, the mounting positions of the first connector 3121, prism 3122, fourth light source 3124, and first imaging unit 3123 are all adjustable, and the angles of the prism 3122 and fourth light source 3124 are also adjustable, providing flexible light reflection and adjustment capabilities to adapt to different detection angle requirements while improving image quality.

[0198] 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.

[0199] 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.

[0200] 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.

[0201] In some embodiments, such as Figure 15As 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.

[0202] 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.

[0203] 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.

[0204] It should be noted that the height adjustment and position adjustment along the length of the bare battery cell 900 of the second connector 3221 can be achieved by using a similar elongated groove and different mounting holes as described above, and this embodiment does not impose specific limitations on this. Similarly, the angle adjustment of the second imaging unit 3222 and the fifth light source 3223 can also be achieved by using a rotating base and a locking component, and this embodiment does not impose specific limitations on this.

[0205] Similarly, such as Figure 15 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.

[0206] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0207] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0208] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0209] In the description of this application, "multiple" means two or more.

[0210] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0211] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0212] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0213] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A subject detection mechanism, characterized by, The application is applied to a bare battery cell detection device, and the main body detection mechanism comprises: a detection rack (111); a first light source (112) which is adjustably arranged at a position on the detection rack (111); two second light sources (113) which are adjustably arranged at positions on the detection rack (111) and are located on the same side of a main body of a bare battery cell (900) along a vertical direction, the first light source (112) is located between the two second light sources (113), and the light emitted by the first light source (112) and the two second light sources (113) is collected on a straight line; a first camera assembly (114) which is adjustably arranged at a position on the detection rack (111), and the first light source (112) is located between the first camera assembly (114) and the main body.

2. The body detection mechanism according to claim 1, characterized by, The main body detection mechanism further comprises: a first support plate, the first light source (112) is arranged on the first support plate, one of the detection rack (111) and the first support plate forms at least one first sliding slot (1111) which extends along the vertical direction, and the other of the detection rack (111) and the first support plate forms a plurality of first mounting holes; at least one first fixing member (115), each first sliding slot (1111) corresponds to at least one first fixing member (115), one end of the first fixing member (115) is connected with the first mounting hole in a threaded manner through the corresponding first sliding slot (1111).

3. The body detection mechanism according to claim 2, wherein A first scale line is arranged on the detection rack (111), the first scale line is close to the first sliding slot (1111) and extends along the vertical direction.

4. The body detection mechanism according to claim 1, characterized by, The detection rack (111) forms a second sliding slot (1112) and a third sliding slot (1113) which are arranged at intervals, the extending directions of the second sliding slot (1112) and the third sliding slot (1113) are parallel, and the extending direction of the second sliding slot (1112) is arranged at an acute angle with the vertical direction; the main body detection mechanism further comprises: a first rotating shaft (1131), one end of the first rotating shaft (1131) is connected with the second light source (113), and the other end of the first rotating shaft (1131) is slidingly connected with the second sliding slot (1112); a first positioning member (116), the first positioning member (116) is sleeved outside the first rotating shaft (1131) and forms a plurality of second mounting holes; a plurality of second fixing members (117), the third sliding slot (1113) corresponds to at least one second fixing member (117), and one end of the second fixing member (117) is connected with the second mounting hole in a threaded manner through the corresponding third sliding slot (1113).

5. The body detection mechanism according to claim 4, wherein The surface of the first positioning member (116) close to the second sliding slot (1112) is provided with a circumferential scale line; and / or 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).

6. The body detection mechanism according to claim 4, wherein 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).

7. The body detection mechanism of claim 1, wherein The body detection mechanism further comprises: A second supporting plate, 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; At least one third fixing member, each fifth sliding groove (1115) corresponds to at least one third fixing member, one end of the third fixing member passes through the corresponding fifth sliding groove (1115) and is threadedly connected with the third mounting hole.

8. The body detection mechanism according to claim 7, wherein The detection rack (111) is provided with a third scale line, the third scale line is near the fifth sliding groove (1115) and extends in the up-down direction.

9. The body detection mechanism of claim 1, wherein, Further comprising: A protective cover (118) 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, 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 all located in the closed structure; and / or A dust removal structure (119) arranged on the detection rack (111).

10. The body detection mechanism of claim 1, wherein, The first light source (112) is a coaxial light source, and the second light source (113) is a strip-shaped light source.

11. A subject detection apparatus, characterized by, Comprise: A moving mechanism (120); and The body detection mechanism according to any one of claims 1 to 10, wherein the output end of the moving mechanism (120) is used to drive the body detection mechanism to move along the length direction of the bare battery core (900). ​

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