Battery cell main surface detection mechanism and appearance detection equipment

Abstract

The utility model discloses a battery cell main surface detection mechanism and appearance detection equipment, the battery cell main surface detection mechanism comprises a fixing part, a surface detection part and a remodeling module, and the fixing part fixes a battery cell and exposes the front and back surfaces of the battery cell; the surface detection part comprises a first detection part and a second detection part, the first detection part is provided with a first detection position and detects the front surface and the tab when the battery cell is located at the first detection position, and the second detection part is provided with a second detection position and detects the back surface and the tab when the battery cell is located at the second detection position; and the at least one remodeling module is used for adjusting at least one of the relative positions of the first detection part, the second detection part and the fixing part, so that the battery cell is moved to the first detection position and the second detection position. The relative position between at least one of the first detection component and the second detection component and the fixing component can be adjusted through the model changing module, so that the thickness change of different types of battery cells can be adapted when the different types of battery cells are detected, and the appearance detection efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of battery cell appearance inspection technology, and in particular to a battery cell main surface inspection mechanism and appearance inspection equipment. Background Technology

[0002] Inspection of the main surface of a battery cell includes inspection of the front and back of the cell body and tabs. Surface defects refer to various undesirable phenomena or flaws that appear on the surface of the cell during manufacturing or use. These surface defects not only affect the appearance quality of the cell but may also negatively impact its performance and safety. However, current inspection mechanisms that only inspect the front or back of the cell cannot meet the need to simultaneously inspect the surface defects of both the cell body and tabs when changing cell models, resulting in low efficiency in cell appearance inspection. Utility Model Content

[0003] The purpose of this application is to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a battery cell main surface inspection mechanism that can adapt to the thickness variations of different battery cell models, thereby improving the inspection efficiency of battery cell appearance.

[0004] This application also proposes an appearance inspection device that includes the above-mentioned cell main surface inspection mechanism.

[0005] The cell main surface inspection mechanism according to the first aspect of this application includes:

[0006] Fixing components are used to secure the battery cell and expose the front and back surfaces of the battery cell;

[0007] A surface detection component includes a first detection component and a second detection component. The first detection component has a first detection position and is used to detect the exposed front surface of the battery cell and the electrode tabs of the battery cell when the battery cell is in the first detection position. The second detection component has a second detection position and is used to detect the exposed reverse surface of the battery cell and the electrode tabs of the battery cell when the battery cell is in the second detection position.

[0008] At least one switching module is used to adjust at least one of the relative positions of the first detection component and the battery cell on the fixed component or the relative positions of the second detection component and the battery cell on the fixed component, so that the battery cell can be adjusted to the first detection position and the second detection position, respectively.

[0009] The battery cell main surface inspection mechanism according to the first aspect of this application has at least the following beneficial effects: by setting the type-changing module, the relative position between at least one of the first inspection component and the second inspection component and the battery cell on the fixed component can be adjusted, thereby ensuring that the first inspection component and the second inspection component can adapt to the thickness changes of different battery cell models when inspecting different models of battery cells, thereby improving the inspection efficiency of battery cell appearance.

[0010] According to the first aspect embodiment of the present application, the main surface inspection mechanism for battery cells includes a main inspection component and a tab inspection component. The main inspection component and the tab inspection component are respectively disposed on the shape-changing module. The shape-changing module is used to simultaneously adjust the relative positions of the main inspection component, the tab inspection component and the battery cells on the fixed component.

[0011] According to the first aspect embodiment of the present application, the cell main surface inspection mechanism is used to simultaneously adjust the relative positions of the main inspection component, the tab inspection component and the cell on the fixed component along the thickness direction of the cell.

[0012] According to the first aspect embodiment of the present application, the main surface detection mechanism for the battery cell is provided, wherein the fixing component is used to fix the battery cell and make the battery cell horizontally positioned, and the changing module is used to simultaneously drive the main body detection component and the tab detection component to move in the vertical direction, so as to adjust the position of the main body detection component and the tab detection component relative to the height direction of the battery cell surface.

[0013] According to the first aspect embodiment of the present application, the main surface inspection mechanism for a battery cell includes a coaxial light source assembly and a ring light source assembly, wherein the coaxial light source assembly and the ring light source assembly are used to provide illumination for the visual inspection of the main inspection assembly and the tab inspection assembly.

[0014] According to the battery cell main surface inspection mechanism described in the first aspect embodiment of this application, the coaxial light source assembly and the ring light source assembly are sequentially arranged along the direction from the main inspection assembly to the fixed component.

[0015] According to the first aspect of the present application, the main surface inspection mechanism for battery cells further includes a conveying component, and there are multiple fixing components. The conveying component is used to convey the fixing components so that the battery cells on each fixing component can sequentially reach the position that cooperates with the surface inspection component.

[0016] According to the first aspect embodiment of the present application, the cell main surface inspection mechanism includes a conveying component comprising a turntable assembly, the turntable assembly being rotatable about a rotation axis, and each of the fixed components being circumferentially distributed on the turntable assembly with the rotation axis as a reference.

[0017] According to the battery cell main surface inspection mechanism of the first aspect embodiment of this application, the surface inspection component further includes a transfer component for transferring the battery cell so that the battery cell can reach the first inspection component and the second inspection component respectively.

[0018] The appearance inspection device according to the second aspect of this application includes: a cell main surface inspection mechanism as described in the first aspect of this application.

[0019] It is easy to understand that the appearance inspection device in the second aspect embodiment of this application has the same technical effects as the cell main surface inspection mechanism in the first aspect embodiment, and therefore will not be described again.

[0020] 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

[0021] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1 This is a schematic diagram of the structure of the first detection component when detecting the front surface of the battery cell in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the structure of the second detection component in this application when detecting the reverse surface of the battery cell.

[0024] Figure label:

[0025] 100. Fixed components;

[0026] 200. First detection component; 210. Main detection assembly; 220. Electrode detection assembly; 230. Coaxial light source assembly; 240. Ring light source assembly;

[0027] 300. Replacement module;

[0028] 400. Conveying components; 410. Turntable assembly;

[0029] 500. Second detection component; 510. Transfer assembly. Detailed Implementation

[0030] 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.

[0031] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0032] In the description of this application, "several" means one or more, "more than" means at least two, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this application after considering the specific content of the technical solution.

[0034] Reference Figure 1 and Figure 2 The main surface inspection mechanism for battery cells according to the first aspect of this application is applied in an appearance inspection device. The main surface inspection mechanism for battery cells includes a fixing component 100, a surface inspection component, and a transformation module 300.

[0035] The fixing component 100 is used to fix the battery cell and expose the front and back surfaces of the battery cell; the surface detection component includes a first detection component and a second detection component, the first detection component 200 has a first detection position, the first detection component 200 is used to detect the exposed surface of the battery cell and the electrode tab of the battery cell when the battery cell is in the first detection position, the second detection component 500 has a second detection position, the second detection component 500 is used to detect the exposed back surface of the battery cell and the electrode tab of the battery cell when the battery cell is in the second detection position; at least one of the changing module 300 is used to adjust at least one of the relative positions of the first detection component 200 and the battery cell on the fixing component 100 or the relative positions of the second detection component 500 and the battery cell on the fixing component 100, so that the battery cell can be adjusted to the first detection position and the second detection position respectively.

[0036] It is understood that the fixing component 100 fixes the battery cell and exposes the front and back surfaces of the battery cell to be inspected. The surface inspection component and the fixing component 100 are set to an initial relative position. When the battery cell model remains unchanged, the first inspection component 200 and the second inspection component 500 respectively inspect the exposed surfaces of the battery cell and the corresponding battery cell tabs. When the battery cell model changes, the replacement module 300 adjusts the relative position to adapt to the thickness variations of different battery cell models, thereby improving the inspection efficiency of the battery cell appearance. The replacement module 300 is used to adjust at least one of the relative positions of the first inspection component 200 and the battery cell on the fixing component 100, or the relative position of the second inspection component 500 and the battery cell on the fixing component 100, in various embodiments.

[0037] In some embodiments, when only one switching module 300 is provided, the switching module 300 can be used to adjust the relative position of the battery cell on the first detection component 200 and the fixed component 100. At this time, the relative position of the battery cell on the second detection component 500 and the fixed component 100 is fixed and determined. When the fixed component 100 fixes the battery cell, it uses the reverse surface as a reference, that is, the battery cell is initially in the second detection station. After the battery cell is detected at the second detection station, the switching module 300 moves the battery cell to the first detection station to achieve detection. Conversely, the switching module 300 adjusts the relative position of the battery cell on the second detection component 500 and the fixed component 100. At this time, the relative position of the battery cell on the first detection component 200 and the fixed component 100 is fixed and determined, which can also achieve the effect of front and back detection of different models of battery cells.

[0038] In other embodiments, when at least two replacement modules 300 are provided, the relative positions of the battery cells on the first detection component 200 and the fixed component 100 and the relative positions of the battery cells on the second detection component 500 and the fixed component 100 are adjusted by the two replacement modules 300 respectively, so that the battery cells can be adjusted to the first detection position and the second detection position respectively, thereby realizing the front and back detection of different models of battery cells.

[0039] Reference Figure 1 and Figure 2 The battery cell main surface inspection mechanism of the first aspect of this application, by setting the shape-changing module 300, makes the relative position between the first inspection component 200 and the battery cell on the fixed component 100 adjustable, thereby ensuring that the first inspection component 200 can adapt to the thickness changes of different battery cell models when inspecting different models of battery cells, thereby improving the inspection efficiency of battery cell appearance.

[0040] It should be understood that the replacement module 300 can adjust the relative position of the battery cell on the first detection component 200 and the fixed component 100 in the following ways: adjusting the position of the first detection component 200 so that its detection position is aligned with the battery cell on the fixed component 100; adjusting the position of the fixed component 100 so that the battery cell on the fixed component 100 reaches the detection position of the first detection component 200; or performing both actions simultaneously, adjusting the detection position of the first detection component 200 and the position of the fixed component 100 at the same time so that the battery cell can be adjusted to the detection position. This allows for adaptation to thickness variations of different battery cell models, thereby improving the efficiency of battery cell appearance inspection. The above-described embodiment of adjusting relative position can be similarly applied to the replacement module 300 to adjust the relative position of the battery cell on the second detection component 500 and the fixed component 100, and will not be further described here.

[0041] In other embodiments, when the position of the fixing component 100 is adjusted to enable the battery cell on the fixing component 100 to reach the detection position of the first detection component 200, the fixing component 100 is disposed on the changing module 300, and the changing module 300 is used to drive the fixing component 100 to move so that the battery cell can be adjusted to the detection position. Further, when the fixing component 100 is disposed on the turntable assembly 410, the changing module 300 is used to drive the turntable assembly 410 and the fixing component 100 to move to adjust their relative positions with the detection position of the first detection component 200.

[0042] To facilitate production line configuration and prevent interference and error-causing situations between the fixed component 100 and other mechanisms when it is transferred to the next workstation, in some embodiments of this application, reference is made to... Figure 1 The first detection component 200 includes a main detection assembly 210 and a tab detection assembly 220. The main detection assembly 210 and the tab detection assembly 220 are respectively mounted on the changeover module 300, which is used to simultaneously adjust the relative positions of the main detection assembly 210, the tab detection assembly 220, and the battery cells on the fixed component 100. It can be understood that the relative positions of the second detection component 500 and the battery cells on the fixed component 100 are fixed and determined. By mounting the main detection assembly 210 and the tab detection assembly 220 on the changeover module 300, and by changing the positions of the main detection assembly 210 and the tab detection assembly 220, the relative positions of the main detection assembly 210, the tab detection assembly 220, and the battery cells on the fixed component 100 are adjusted. This results in a compact overall structure, a reasonable workstation design, and reduces the occurrence of interference errors, thereby improving the efficiency of battery cell appearance inspection.

[0043] In some embodiments of this application, the shape-changing module 300 is used to simultaneously adjust the relative positions of the main body detection assembly 210, the tab detection assembly 220, and the battery cell on the fixed component 100 along the thickness direction of the battery cell. It is understood that, considering that the thickness is a dimensional parameter that typically varies among different battery cell models, adjusting the relative height of the main body detection camera and the tab detection camera using the shape-changing module 300 can adapt to the thickness variations of different battery cell models, thereby improving the efficiency of battery cell appearance inspection.

[0044] In other embodiments, if different cell models change other dimensional parameters, the setting of the switching module 300 can be adjusted adaptively. For example, the length position and width position can be adjusted by adjusting the switching module 300, thereby changing the direction of the relative position of the main body detection camera and the tab detection camera to meet different detection requirements.

[0045] In some embodiments of this application, the fixing component 100 is used to fix the battery cell and make the battery cell horizontally positioned. The changing module 300 is used to simultaneously drive the main body detection component 210 and the tab detection component 220 to move in the vertical direction, so as to adjust the position of the main body detection component and the tab detection component 220 relative to the surface of the battery cell in the height direction. It can be understood that, combined with the common layout of appearance inspection equipment and production lines, by setting the battery cell horizontally and using the changing module 300 to simultaneously drive the main body detection component 210 and the tab detection component 220 to move in the vertical direction, the main body detection component 210 and the tab detection component 220 can be adjusted in the height direction to adjust their relative position with the exposed surface of the battery cell, thereby adapting to the thickness changes when changing different models of battery cells and improving the inspection efficiency of the battery cell appearance.

[0046] In some embodiments, in combination with other cell configurations, the movement direction of the switching module 300 driving the main body detection component 210 and the tab detection component 220 can be adaptively adjusted, thereby adjusting the position of the main body detection component and the tab detection component 220 relative to the cell surface in the height direction.

[0047] In some embodiments of this application, reference is made to Figure 1 The first detection component 200 includes a coaxial light source assembly 230 and a ring light source assembly 240. The coaxial light source assembly 230 and the ring light source assembly 240 provide illumination for the visual detection of the main detection component 210 and the tab detection component 220. It is understood that the coaxial light source assembly 230 is used to eliminate shadows caused by uneven object surfaces, thereby reducing interference; the ring light source assembly 240 is used to provide different illumination angles and different color combinations to improve the shooting effect. The complementary setup of the two effectively improves the imaging effect.

[0048] In some embodiments, the main body detection component 210 includes a main body detection camera, the tab detection component 220 includes a tab detection camera, the coaxial light source component 230 includes a coaxial light source, and the ring light source component 240 includes a ring light source. The arrangement of the coaxial light source and the four-ring light source simultaneously satisfies the visual detection lighting conditions for both the main body detection and the tab detection of the battery cell.

[0049] In some embodiments of this application, in order to better meet the visual inspection lighting conditions for cell body inspection and electrode inspection, a coaxial light source assembly 230 and a ring light source assembly 240 are sequentially arranged along the direction from the body inspection assembly 210 to the fixed component 100. By sequentially arranging the coaxial light source assembly 230 and the ring light source assembly 240 along the light emission direction, the quality of the inspection imaging is guaranteed.

[0050] In some embodiments of this application, when this battery cell main surface inspection mechanism is applied to a production line or battery cell appearance inspection equipment, in order to enable the battery cells to reach different workstations to complete different processes, the battery cell main surface inspection mechanism further includes a conveying component 400. Multiple fixing components 100 are provided, and the conveying component 400 is used to convey the fixing components 100 so that the battery cells on each fixing component 100 can sequentially reach the positions that cooperate with the surface inspection components. It is understood that the conveying component 400 is used to convey the fixing components 100 so that the battery cells can flow on the inspection equipment or production line and reach different workstations, thereby improving the overall appearance inspection efficiency of the battery cells.

[0051] In some embodiments, in addition to enabling the conveying of battery cells to flow through various stations on a production line or testing equipment, the conveying component 400 can also be configured as other commonly used conveying structures such as a conveyor line assembly or a transfer assembly.

[0052] In some embodiments of this application, reference is made to Figure 1 The conveying component 400 includes a turntable assembly 410, which is rotatable about a rotation axis. Each fixed component 100 is circumferentially distributed on the turntable assembly 410 with the rotation axis as a reference. It is understood that each fixed component 100, conveyed by the turntable assembly 410, can sequentially pass through the area of ​​the surface detection component. The height is adjusted by the changing component to fit the battery cells on each fixed component 100, so that each battery cell, upon reaching the detection position, can sequentially trigger the detection of the tab detection camera and the main body detection camera.

[0053] In some embodiments, the fixed components 100 are evenly and circumferentially distributed on the turntable assembly 410 with the rotation axis as the reference, thereby ensuring the production cycle time.

[0054] In some embodiments, the turntable assembly 410 includes a turntable, a servo controller, a servo motor, and a slide rail. The turntable is rotatably mounted on the slide rail, which serves as a guide and limiter, resulting in higher positional accuracy of the fixed component 100 on the turntable. The servo controller and servo motor are configured in conjunction, enabling the servo motor to precisely control the rotation of the turntable, thereby improving the inspection efficiency of the appearance inspection equipment.

[0055] It is understood that the main surface of the battery cell includes a front and a back side, and the detection of the main surface of the battery cell includes the detection of the front and back sides of the battery cell body and the electrode tabs. Therefore, in some embodiments, the fixing component 100 is used to fix the battery cell and expose the front or back surface. After being detected by the first detection component 200, the battery cell can be removed from the fixing component 100 and flipped over, or the fixing component 100 can be flipped over. The relative position of the first detection component 200 and the battery cell on the fixing component 100 can be adjusted by the changing module 300, and the effect of sequentially detecting the front and back sides of the battery cell can be achieved by re-detecting.

[0056] In some embodiments of this application, reference is made to Figure 1 and Figure 2 The surface inspection component also includes a transfer assembly 510, which is used to transfer the battery cell so that it can reach the first inspection component 200 and the second inspection component 500 respectively. It is understood that by using the transfer assembly 510, the battery cell can sequentially pass through the first inspection component 200 and the second inspection component 500 to sequentially complete the inspection of the front and back surfaces. This allows for simultaneous inspection of both sides of the battery cell, eliminating the need for cumbersome operations such as flipping and secondary chip fixing, avoiding the risk of material falling out during flipping, and thus improving the efficiency of battery cell appearance inspection.

[0057] In some embodiments, the first detection component 200 and the second detection component 500 for detecting the front and back sides of the battery cell are based on the same principle, and their structures can be adapted for adjustment, such as... Figure 1 The first detection component 200 for front-side inspection of battery cells is shown. Figure 2 The diagram shows a second detection component 500 for detecting the reverse side of the battery cell, but both can be adjusted by controlling the cell model change module 300 when the main detection camera and the tab detection camera are changed, thereby adapting to the thickness changes when changing different battery cell models.

[0058] In some embodiments, the transfer component 510 may be a structure composed of a transfer arm and a transmission component. The transfer component 510 may be adapted to other structures while still being able to transfer battery cells.

[0059] In some embodiments, the fixing component 100 includes a suction cup to fix the battery cell. In other embodiments, the fixing component 100 can also be set as other commonly used fixing components. The type and structure of the fixing component can be adaptively selected on the premise that the battery cell can be fixed and the surface of the battery cell to be tested can be exposed.

[0060] In some embodiments of this application, the main surface inspection mechanism for the battery cell includes a main inspection camera, a tab inspection camera, a coaxial light source, a ring light source, a type-changing module 300, a turntable, and a fixing component 100. The fixing component 100 is mounted on the turntable, which is used to transfer the battery cell to different workstations. The main inspection camera and the tab inspection camera are mounted on the type-changing module 300, which is used to adjust the main inspection camera and the tab inspection camera when the battery cell model is changed, thereby adapting to the thickness changes when changing to different battery cell models. The coaxial light source and the four-ring light source can simultaneously meet the visual inspection lighting conditions for both the main inspection and tab inspection of the battery cell. In actual implementation, the turntable rotates, driving the fixing component 100 to rotate the battery cell to the front / back inspection position, and the tab inspection camera and the main inspection camera trigger inspection sequentially. The type-changing module 300 adjusts the overall height of the first inspection component 200 to adapt to changes in battery cell thickness, thus achieving type changing. Furthermore, a front inspection mechanism and a back inspection mechanism can be set up simultaneously. The inspection camera of the back inspection mechanism is located directly below the fixed component 100, and its mechanism principle is the same as that of the front inspection mechanism. By setting a main body inspection camera and a tab inspection camera on the changeover module 300, the process defects on the front of the main body and the front of the tab can be detected when the cell model remains unchanged. When the cell model changes, the height of the main body inspection camera and the tab inspection camera can be adjusted by the changeover module 300 to adapt to the thickness changes of different cell models, thereby improving the inspection efficiency of cell appearance.

[0061] The appearance inspection device of the second aspect of this application can be an appearance inspection device for the battery cell body and the electrode tab, and the appearance inspection device includes the battery cell main surface inspection mechanism of the first aspect of this application.

[0062] It is easy to understand that the appearance inspection device in the second aspect embodiment of this application has the same technical effects as the cell main surface inspection mechanism in the first aspect embodiment, and therefore will not be described again.

[0063] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A battery cell main surface inspection mechanism, characterized in that, include: Fixing components are used to secure the battery cell and expose the front and back surfaces of the battery cell; A surface detection component includes a first detection component and a second detection component. The first detection component has a first detection position and is used to detect the exposed front surface of the battery cell and the electrode tabs of the battery cell when the battery cell is in the first detection position. The second detection component has a second detection position and is used to detect the exposed reverse surface of the battery cell and the electrode tabs of the battery cell when the battery cell is in the second detection position. At least one switching module is used to adjust at least one of the relative positions of the first detection component and the battery cell on the fixed component or the relative positions of the second detection component and the battery cell on the fixed component, so that the battery cell can be adjusted to the first detection position and the second detection position, respectively.

2. The cell main surface inspection mechanism according to claim 1, characterized in that: The first detection component includes a main body detection component and a tab detection component. The main body detection component and the tab detection component are respectively disposed on the shape-changing module. The shape-changing module is used to simultaneously adjust the relative positions of the main body detection component, the tab detection component and the battery cell on the fixed component.

3. The cell main surface inspection mechanism according to claim 2, characterized in that: The shape-changing module is used to simultaneously adjust the relative positions of the main body detection component, the tab detection component, and the battery cell on the fixed component along the thickness direction of the battery cell.

4. The cell main surface inspection mechanism according to claim 3, characterized in that: The fixing component is used to fix the battery cell and set the battery cell horizontally. The changing module is used to drive the body detection component and the tab detection component to move in the vertical direction at the same time, so as to adjust the position of the body detection component and the tab detection component in the height direction relative to the surface of the battery cell.

5. The cell main surface inspection mechanism according to claim 2, characterized in that: The first detection component includes a coaxial light source assembly and a ring light source assembly, which are used to provide illumination for the visual detection of the main body detection component and the tab detection component.

6. The cell main surface inspection mechanism according to claim 5, characterized in that: Along the direction from the main detection component to the fixed component, the coaxial light source component and the ring light source component are arranged sequentially.

7. The cell main surface inspection mechanism according to claim 1, characterized in that: The cell main surface inspection mechanism also includes a conveying component. There are multiple fixing components. The conveying component is used to convey the fixing components so that the cells on each fixing component can sequentially reach the position that cooperates with the surface inspection component.

8. The cell main surface inspection mechanism according to claim 7, characterized in that: The conveying component includes a turntable assembly, which is rotatable about a rotation axis, and each of the fixed components is circumferentially distributed on the turntable assembly with the rotation axis as a reference.

9. The cell main surface inspection mechanism according to claim 1, characterized in that: The surface inspection component further includes a transfer assembly for transferring the battery cell so that the battery cell can reach the first inspection component and the second inspection component respectively.

10. An appearance inspection device, characterized in that, include: The cell main surface inspection mechanism as described in any one of claims 1 to 9.

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