Clamping device, battery detection apparatus, and battery production line

Abstract

The application discloses a clamping device, a battery detection device and a battery production line. The clamping device comprises a mounting frame, a tab clamping mechanism, a battery clamping mechanism and a cup jig mechanism. The cup jig mechanism is used for carrying a cup. The tab clamping mechanism, the battery clamping mechanism and the cup jig mechanism are all arranged on the mounting frame, so that the battery clamping mechanism can clamp a battery in the cup, and the tab clamping mechanism can clamp a tab of the battery. The relative positions of the mechanisms of the clamping device are accurate, and the positioning accuracy of the battery can be improved.

Description

Technical Field

[0001] This application belongs to the field of battery production technology, specifically relating to a clamping device, battery testing equipment, and battery production line. Background Technology

[0002] During the battery production process, after being scanned by the feeding turntable, the battery enters the tab alignment station, and then flows through the transition station, correction station, NG station and other stations before entering the testing station to perform short circuit testing on the battery.

[0003] During battery short-circuit testing, the relative positions of the electrode clamps and the electrodes must be consistent, and the electrodes must not be bent. However, if the battery holder is loose, the battery will wobble within the holder. Therefore, the battery needs to be secured and its concentricity with the holder must be ensured to improve battery positioning accuracy. In existing battery short-circuit testing devices, the electrode clamping mechanism, battery clamping mechanism, and holder mechanism all require independent installation and adjustment, resulting in low relative positional accuracy between these mechanisms and hindering precise battery positioning. Utility Model Content

[0004] This application aims to provide a clamping device, a battery testing equipment, and a battery production line, thereby addressing at least one of the problems in the prior art.

[0005] According to a first aspect of this application, a clamping device is provided, comprising:

[0006] Mounting bracket, electrode clamping mechanism, battery clamping mechanism, and cup holder fixture mechanism;

[0007] The cup holder mechanism is used to support the cup. The tab holding mechanism, the battery holding mechanism, and the cup holder mechanism are all mounted on the mounting frame, so that the battery holding mechanism can hold the battery in the cup and the tab holding mechanism can hold the battery tabs.

[0008] Optionally, the tab clamping mechanism, the battery clamping mechanism, and the cup holder mechanism are arranged sequentially from top to bottom along the vertical direction on the mounting frame.

[0009] Optionally, the cup holder mechanism includes a support portion and a limiting portion. The support portion is capable of supporting and adsorbing the cup, and the limiting portion is provided with a first groove that matches the outer contour of the cup. The first groove can restrict the movement of the cup.

[0010] Optionally, the limiting part is further provided with a second groove that matches the outer contour of the battery, the second groove being able to restrict the movement of the battery within the cup.

[0011] According to a second aspect of this application, a battery testing device is provided, comprising:

[0012] A turntable mechanism and one or more clamping devices as described in the first aspect, wherein the one or more clamping devices are spaced apart on the periphery of the turntable mechanism via the mounting bracket;

[0013] The grippers of the electrode clamping mechanism are made of conductive material.

[0014] Optionally, the turntable mechanism includes a first turntable, a second turntable, and a base;

[0015] The first turntable and the second turntable are rotatably stacked on the base, and the two ends of the mounting frame are respectively fixed to the periphery of the first turntable and the second turntable;

[0016] When the first turntable and the second turntable rotate, the jaws of the battery clamping mechanism and / or the jaws of the electrode clamping mechanism open or close.

[0017] Optionally, the base is provided with a first mating part, and the electrode clamping mechanism includes a first transmission component and a first clamping component, the first clamping component being connected to the first transmission component; when the first turntable and the second turntable rotate, the first mating part causes the jaws of the first clamping component to open or close via the first transmission component; and / or,

[0018] The base is provided with a second mating part, and the battery clamping mechanism includes a second transmission component and a second clamping component. The second clamping component is connected to the second transmission component. When the first turntable and the second turntable rotate, the second mating part causes the jaws of the second clamping component to open or close through the second transmission component.

[0019] Optionally, the first mating part has a first annular convex surface, and the first transmission component includes a first guide rail, a first connecting block and a cam follower structure. The first guide rail is fixed on the mounting bracket, and the cam follower structure is movably assembled on the first guide rail through the first connecting block and contacts the first annular convex surface.

[0020] The first clamping assembly includes a second connecting block, a first elastic element, and a clamping body. The clamping body is fixed to the mounting bracket via the second connecting block and connected to the cam follower structure. The first elastic element is connected between the cam follower structure and the clamping body.

[0021] When the first turntable and the second turntable rotate, the first annular convex surface causes the cam follower structure to reciprocate along the extension direction of the first guide rail, and the cam follower structure causes the jaws of the clamping body to open or close.

[0022] Optionally, the second mating part has a second annular convex surface;

[0023] The second transmission assembly includes a second guide rail and a cam link structure. The second guide rail is fixed on the mounting bracket. One end of the cam link structure contacts the second annular convex surface, and the other end is connected to the second clamping assembly.

[0024] The second clamping assembly includes a second elastic element, a first gripper and a second gripper, the first gripper and the second gripper being slidably mounted on the second guide rail, and the second elastic element being connected between the first gripper and the second gripper;

[0025] When the first turntable and the second turntable rotate, the second annular convex surface enables the cam connecting rod structure to drive the first gripper and the second gripper to move away from each other along the extension direction of the second guide rail, and the second elastic element resets the first gripper and the second gripper.

[0026] According to a third aspect of this application, a battery production line is provided, comprising:

[0027] The clamping device described in the first aspect; or including,

[0028] The battery testing equipment described in the second aspect.

[0029] In the embodiments of this application, by setting the tab clamping mechanism, the battery clamping mechanism, and the cup holder fixture mechanism on the same mounting frame, the relative positional accuracy of the tab clamping mechanism, the battery clamping mechanism, and the cup holder fixture mechanism is high. When the cup holder fixture mechanism carries the cup, the battery clamping mechanism can clamp the battery in the cup, and the tab clamping mechanism can clamp the battery tabs, thereby improving the accuracy of the clamping device in positioning the battery.

[0030] 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

[0031] 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:

[0032] Figure 1 This is one of the structural schematic diagrams of the clamping device provided in this application;

[0033] Figure 2 This is the second schematic diagram of the clamping device provided in this application;

[0034] Figure 3 This is the third schematic diagram of the clamping device provided in this application;

[0035] Figure 4 This is a schematic diagram of the battery testing equipment provided in this application;

[0036] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0037] Figure 6 yes Figure 4 Side view.

[0038] Figure label:

[0039] 1. Mounting bracket; 2. Electrode clamping mechanism; 21. First guide rail; 22. First connecting block; 23. Cam follower structure; 24. Second connecting block; 25. First elastic element; 26. Clamping body; 27. Limiting block; 3. Battery clamping mechanism; 31. Second guide rail; 32. Cam connecting rod structure; 33. Second elastic element; 34. First gripper; 35. Second gripper; 4. Cup holder fixture mechanism; 41. Support part; 42. Limiting part; 421. First groove; 422. Second groove; 5. Turntable mechanism; 51. First turntable; 52. Second turntable; 53. Base; 531. Second annular convex surface; 6. Cup holder; 7. Battery; 71. Electrode. Detailed Implementation

[0040] Embodiments of this application will now be described in detail. Examples of these embodiments are illustrated 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. All other embodiments obtained by those skilled in the art based on the embodiments in this application are within the scope of protection of this application.

[0041] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] 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.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] The following is combined Figures 1-6 This application describes a clamping device, a battery 7 testing device, and a battery 7 production line according to embodiments of the present application.

[0045] like Figures 1 to 3 As shown, according to a first aspect of this application, a clamping device is provided, including: a mounting frame 1, a tab clamping mechanism 2, a battery clamping mechanism 3, and a cup holder fixture mechanism 4; the cup holder fixture mechanism 4 is used to support a cup 6, the tab clamping mechanism 2, the battery clamping mechanism 3, and the cup holder fixture mechanism 4 are all disposed on the mounting frame 1, so that the battery clamping mechanism 3 can clamp the battery 7 in the cup 6, and the tab clamping mechanism 2 can clamp the tab 71 of the battery 7.

[0046] Specifically, in this embodiment, by fixing the tab clamping mechanism 2, the battery clamping mechanism 3, and the cup holder fixture mechanism 4 onto the same mounting bracket 1, the relative positional accuracy between these three mechanisms is high. This ensures that when the cup holder fixture mechanism 4 carries the cup 6, the battery clamping mechanism 3 can accurately clamp and fix the battery 7 within the cup 6. When the battery 7 is accurately positioned, the position of the tab clamping mechanism 2 relative to the battery clamping mechanism 3 remains unchanged. Therefore, its clamping of the tab 71 of the battery 7 is more precise, avoiding the problem of the tab 71 bending when clamped by the tab clamping mechanism 2, thus improving the production yield of the battery 7. Especially when the cup 6 is loose, the position of the battery clamping mechanism 3 relative to the cup holder fixture mechanism 4 remains unchanged, ensuring that the battery 7 and the cup 6 are concentric, making the positioning of the battery 7 by the battery clamping mechanism 3 more accurate.

[0047] The clamping device provided in this application can be assembled as a single module into the battery 7 testing equipment, avoiding assembly errors when each mechanism is installed independently, simplifying the structure and assembly difficulty of the clamping device. Furthermore, during the battery 7 short-circuit test, there is no need to readjust the positions of the tab clamping mechanism 2, the battery clamping mechanism 3, and the cup holder mechanism 4, improving testing efficiency, accuracy, and product yield. Specifically, when the battery 7 testing equipment performs a short-circuit test on the battery 7, the grippers of the tab clamping mechanism 2 are configured to be conductive. Additionally, the mounting bracket 1 can be designed as a plate structure to simplify the structure of the clamping device and reduce installation difficulty.

[0048] Optionally, such as Figures 1 to 3 As shown, the tab clamping mechanism 2, the battery clamping mechanism 3, and the cup holder mechanism 4 are arranged sequentially on the mounting frame 1 from top to bottom along the vertical direction (refer to the Z direction in the attached figure).

[0049] Specifically, in the short-circuit detection process of battery 7, multiple clamping devices are typically installed at intervals around the turntable to improve the detection efficiency of battery 7 and adapt to the entire battery 7 production process. In this embodiment, the mounting frame 1 can be configured as a long strip-shaped plate structure, and the tab clamping mechanism 2, battery clamping mechanism 3, and cup holder fixture mechanism 4 are sequentially fixed on the strip-shaped mounting frame 1 in the vertical direction. This reduces the space occupied by the clamping devices in the horizontal direction, increases the number of clamping devices assembled around the turntable, and thus improves the detection efficiency of battery 7. In addition, arranging each mechanism sequentially in the vertical direction simplifies the installation difficulty of each mechanism, facilitates positioning, reduces assembly errors, and further improves the accuracy of battery 7 positioning.

[0050] Optionally, such as Figure 1As shown, the cup holder mechanism 4 includes a support part 41 and a limiting part 42. The support part 41 can support and absorb the cup 6, and the limiting part 42 is provided with a first groove 421 that matches the outer contour of the cup 6. The first groove 421 can restrict the movement of the cup 6.

[0051] Specifically, in this embodiment, the cup holder mechanism 4 includes a support portion 41, which may be provided with a magnetic material or magnetic element, so that when the cup 6 is placed on the support portion 41, it can be attracted to the support portion 41, preventing the cup 6 from falling or moving; and a first groove 421 is provided in the limiting portion 42, so that when the cup 6 is placed on the cup holder mechanism 4, at least a part of the outline of the cup 6 can be embedded in the first groove 421, preventing the cup 6 from moving radially. Through the limitation of the support portion 41 and the first groove 421, the cup 6 can be accurately positioned and held in the appropriate position, so as to ensure the positional accuracy of the battery 7 inside the cup 6.

[0052] In practical applications, the entire cup holder mechanism 4 can be made of magnetic material to further ensure the reliability of the cup holder 6's position. Specifically, the shape of the first groove 421 matches the outer contour of the cup holder 6, meaning it can be set as an arc-shaped groove.

[0053] Optionally, such as Figure 1 As shown, the limiting part 42 is also provided with a second groove 422 that matches the outer contour of the battery 7. The second groove 422 can restrict the movement of the battery 7 inside the cup 6.

[0054] Specifically, in this embodiment, the second groove 422 ensures that when the cup 6 is positioned on the support 41, the battery 7 is located at a predetermined position within the cup 6, facilitating concentricity between the battery 7 and the cup 6 and further improving the accuracy of battery positioning. The shape of the second groove 422 matches the outer contour of the cup 6, i.e., it can be configured as an arc-shaped groove.

[0055] like Figures 1 to 6 As shown, according to a second aspect of this application, a battery testing device is provided, comprising: a turntable mechanism 5 and one or more clamping devices of the first aspect, wherein the one or more clamping devices are spaced apart on the periphery of the turntable mechanism 5 by means of a mounting frame 1; wherein the jaws of the tab clamping mechanism 2 are made of conductive material.

[0056] Specifically, in this embodiment, a battery testing device is provided. A turntable mechanism 5 is equipped with one or more clamping devices, enabling the turntable mechanism 5 to drive a battery clamping mechanism 3 to clamp or release the battery 7 inside the holder 6, and to drive a tab clamping mechanism 2 to clamp or release the tabs 71 of the battery 7 when rotating. The jaws of the tab clamping mechanism 2 are made of conductive material, allowing for short-circuit testing of the battery 7 when the jaws clamp the tabs 71, thereby improving product yield.

[0057] In the above structure, when multiple clamping devices are spaced apart on the turntable mechanism 5, the multiple clamping devices can simultaneously clamp and fix multiple cups 6 and the batteries 7 inside the cups 6, improving the detection efficiency of the battery 7 detection device. Specifically, the clamping of the battery 7 and the tab 71 by the battery clamping mechanism 3 and the tab clamping mechanism 2 can be achieved by separate drive mechanisms or by the rotation of the turntable. The rotation of the turntable mechanism 5 can be achieved by a drive mechanism such as a motor. The specific design can be tailored to the specific structure of the battery detection equipment and is not limited here.

[0058] In addition, the clamping device provided in the first aspect of this application is an integrated modular structure, which simplifies the assembly difficulty of assembling it on the turntable mechanism 5, reduces assembly errors, improves the accuracy of positioning the battery 7, avoids the situation of the tab 71 bending during the short circuit detection process of the battery 7, and improves the product yield.

[0059] Optionally, such as Figures 4 to 6 As shown, the turntable mechanism 5 includes a first turntable 51, a second turntable 52, and a base 53; the first turntable 51 and the second turntable 52 are rotatably stacked on the base 53 at intervals, and the two ends of the mounting bracket 1 are fixed to the periphery of the first turntable 51 and the second turntable 52, respectively; when the first turntable 51 and the second turntable 52 rotate, the jaws of the battery clamping mechanism 3 and / or the jaws of the electrode clamping mechanism 2 open or close.

[0060] Specifically, in this embodiment, based on the installation requirements of simultaneously installing the tab clamping mechanism 2, the battery clamping mechanism 3, and the cup holder mechanism 4, and considering that the turntable mechanism 5 needs to assemble as many clamping devices as possible, resulting in a longer dimension of the clamping devices in a certain direction (e.g., the vertical Z direction), the arrangement of the first turntable 51 and the second turntable 52 makes the installation of the strip-shaped mounting bracket 1 on the turntable mechanism 5 more reliable, improving the stability of the equipment operation. Furthermore, the first turntable 51 and the second turntable 52 can be stacked vertically on the base 53, which facilitates the installation of the entire device in other equipment or fixed to an external structure via the base 53, and also improves the stability of the turntable mechanism 5.

[0061] In the above structure, the first turntable 51 and the second turntable 52 rotate simultaneously, thereby causing the jaws of the battery clamping mechanism 3 and / or the jaws of the tab clamping mechanism 2 mounted on one or more clamping devices on the first turntable 51 and the second turntable 52 to open or close, so as to clamp or release the battery 7 and / or the tab 71. The rotation of the first turntable 51 and the second turntable 52 achieves the opening or closing of the jaws, eliminating the need for a separate drive mechanism for the battery clamping mechanism 3 or the tab clamping mechanism 2, greatly simplifying the number of parts in the entire battery testing equipment and saving equipment costs.

[0062] Optionally, such as Figures 4 to 6 As shown, a first mating part (not shown) is provided on the base 53. The electrode clamping mechanism 2 includes a first transmission component and a first clamping component, and the first clamping component is connected to the first transmission component. When the first turntable 51 and the second turntable 52 rotate, the first mating part causes the jaws of the first clamping component to open or close through the first transmission component. And / or, a second mating part is provided on the base 53. The battery clamping mechanism 3 includes a second transmission component and a second clamping component, and the second clamping component is connected to the second transmission component. When the first turntable 51 and the second turntable 52 rotate, the second mating part causes the jaws of the second clamping component to open or close through the second transmission component.

[0063] Specifically, in this embodiment, by providing a first mating part and / or a second mating part on the base 53, when the first turntable 51 and the second turntable 52 rotate, the first mating part can drive the jaws of the first clamping component to open or close through the first transmission component, so as to clamp or release the battery 7 tab 71; while the second mating part can drive the jaws of the second clamping component to open or close through the second transmission component. This realizes that the opening and closing of multiple clamping mechanisms on multiple clamping devices can be achieved by only one drive mechanism that drives the first turntable 51 and the second turntable 52 to rotate, which greatly saves production costs.

[0064] In the above structure, the specific forms of the first mating part and the second mating part can be designed to match the specific forms of the first transmission component and the second transmission component. For example, when the transmission component adopts cam transmission, the first mating part and the second mating part can be realized by setting a structure that enables the transmission component to follow a set trajectory, or by transmission forms such as gears and belts. This application does not limit this.

[0065] Optionally, such as Figures 4 to 6 As shown, the first mating part has a first annular convex surface (not shown in the figure). The first transmission assembly includes a first guide rail 21, a first connecting block 22, and a cam follower structure 23. The first guide rail 21 is fixed on the mounting bracket 1. The cam follower structure 23 is movably mounted on the first guide rail 21 through the first connecting block 22 and contacts the first annular convex surface. (Refer to...) Figures 1 to 3 The first clamping assembly includes a second connecting block 24, a first elastic element 25, and a clamping body 26. The clamping body 26 is fixed to the mounting bracket 1 via the second connecting block 24 and is connected to the cam follower structure 23. The first elastic element 25 connects the cam follower structure 23 and the clamping body 26. (See reference...) Figures 1 to 3 When the first turntable 51 and the second turntable 52 rotate, the first annular convex surface causes the cam follower structure 23 to reciprocate along the extension direction of the first guide rail 21, and the cam follower structure 23 causes the jaws of the clamping body 26 to open or close.

[0066] Specifically, in this embodiment, the first annular convex surface can be designed as a curved surface with a higher and lower position in the vertical direction. When the first turntable 51 and the second turntable 52 drive the mounting bracket 1 to rotate, a part of the cam follower structure 23 (e.g., the driven bearing) moves along the first annular convex surface, thereby realizing reciprocating movement along the extension direction (e.g., the vertical direction Z) of the first guide rail 21 via the first connecting block 22. The cam follower structure 23 is connected to the clamping body 26, so that the reciprocating motion is converted into the opening and closing of the grippers of the clamping body 26, thereby realizing the clamping or releasing of the battery 7 tab 71. The above structure provided in this embodiment simplifies the driving form of the clamping device and reduces the equipment cost.

[0067] In the above structure, the first elastic element 25 allows the cam follower structure 23 to reset, thereby enabling the grippers of the clamping body 26 to clamp the tabs 71 of the battery 7, improving the reliability of clamping. Furthermore, the limiting block 27 restricts the travel of the first connecting block 22 on the first guide rail 21, preventing the first connecting block 22 from derailing and further improving the reliability of the device. The second connecting block 24 ensures that the clamping body 26 is positioned relative to the mounting bracket 1, preventing positional shifts or shaking of the clamping body 26 that could cause the tabs 71 to bend.

[0068] Optionally, such as Figures 4 to 6 As shown, the second mating part has a second annular convex surface 531; the second transmission assembly includes a second guide rail 31 and a cam connecting rod structure 32. The second guide rail 31 is fixed on the mounting bracket 1. One end of the cam connecting rod structure 32 contacts the second annular convex surface 531, and the other end is connected to the second clamping assembly; the second clamping assembly includes a second elastic element 33, a first jaw 34, and a second jaw 35. The first jaw 34 and the second jaw 35 are slidably mounted on the second guide rail 31, and the second elastic element 33 is connected between the first jaw 34 and the second jaw 35; when the first turntable 51 and the second turntable 52 rotate, the second annular convex surface 531 enables the cam connecting rod structure 32 to drive the first jaw 34 and the second jaw 35 to move away from each other along the extension direction of the second guide rail 31, and the second elastic element 33 resets the first jaw 34 and the second jaw 35.

[0069] Specifically, in this embodiment, the second mating part can be configured with a structure similar to the first mating part, so that when one end of the cam connecting rod structure 32 moves along the second annular convex surface 531, it can drive the first gripper 34 and the second gripper 35 to move away from each other along the extension direction of the second guide rail 31 (refer to the X direction in the figure), thereby realizing the opening of the first gripper 34 and the second gripper 35. The setting of the second elastic member 33 can make the first gripper 34 and the second gripper 35 move closer to each other, thereby realizing the clamping and clamping of the battery 7, and improving the reliability of the battery clamping mechanism 3 in clamping the battery 7.

[0070] According to a third aspect of this application, a battery production line is provided, comprising: a clamping device as described in the first aspect; or a battery testing device as described in the second aspect.

[0071] Specifically, in this embodiment, the battery production line includes the clamping device provided in the first aspect, or the battery testing equipment provided in the second aspect. The clamping device, consisting of the collector clamping mechanism 2, the battery clamping mechanism 3, and the cup holder fixture mechanism 4, is mounted on the same mounting frame 1, which improves the relative positional accuracy between the mechanisms and thus improves the accuracy of battery 7 positioning. When applied to the battery 7 production line, it can improve the production yield of the battery 7. In addition, when the battery testing equipment includes multiple clamping devices, it can improve the production efficiency of the battery 7.

[0072] 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.

[0073] 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 clamping device, characterized in that, include: Mounting bracket (1), electrode clamping mechanism (2), battery clamping mechanism (3) and cup holder fixture mechanism (4); The cup holder mechanism (4) is used to support the cup (6). The tab clamping mechanism (2), the battery clamping mechanism (3) and the cup holder mechanism (4) are all mounted on the mounting frame (1), so that the battery clamping mechanism (3) can clamp the battery (7) in the cup (6) and the tab clamping mechanism (2) can clamp the tab (71) of the battery (7).

2. The clamping device according to claim 1, characterized in that, The electrode clamping mechanism (2), the battery clamping mechanism (3), and the cup holder mechanism (4) are arranged sequentially from top to bottom along the vertical direction on the mounting frame (1).

3. The clamping device according to claim 1, characterized in that, The cup holder mechanism (4) includes a support part (41) and a limiting part (42). The support part (41) can support and absorb the cup (6). The limiting part (42) is provided with a first groove (421) that matches the outer contour of the cup (6). The first groove (421) can restrict the movement of the cup (6).

4. The clamping device according to claim 3, characterized in that, The limiting part (42) is also provided with a second groove (422) that matches the outer contour of the battery (7), and the second groove (422) can restrict the movement of the battery (7) in the cup (6).

5. A battery testing device, characterized in that, include: A turntable mechanism (5) and one or more clamping devices according to any one of claims 1-4, wherein the one or more clamping devices are spaced apart on the periphery of the turntable mechanism (5) via the mounting bracket (1); The grippers of the electrode clamping mechanism (2) are made of conductive material.

6. The battery testing equipment according to claim 5, characterized in that, The turntable mechanism (5) includes a first turntable (51), a second turntable (52), and a base (53); The first turntable (51) and the second turntable (52) are rotatably stacked on the base (53), and the two ends of the mounting bracket (1) are fixed to the periphery of the first turntable (51) and the second turntable (52), respectively. When the first turntable (51) and the second turntable (52) rotate, the jaws of the battery clamping mechanism (3) and / or the jaws of the tab clamping mechanism (2) open or close.

7. The battery testing equipment according to claim 6, characterized in that, The base (53) is provided with a first mating part, and the electrode clamping mechanism (2) includes a first transmission component and a first clamping component, the first clamping component being connected to the first transmission component; when the first turntable (51) and the second turntable (52) rotate, the first mating part causes the jaws of the first clamping component to open or close through the first transmission component; and / or, The base (53) is provided with a second mating part, and the battery clamping mechanism (3) includes a second transmission component and a second clamping component. The second clamping component is connected to the second transmission component. When the first turntable (51) and the second turntable (52) rotate, the second mating part causes the jaws of the second clamping component to open or close through the second transmission component.

8. The battery testing equipment according to claim 7, characterized in that, The first mating part has a first annular convex surface. The first transmission component includes a first guide rail (21), a first connecting block (22), and a cam follower structure (23). The first guide rail (21) is fixed on the mounting bracket (1). The cam follower structure (23) is movably assembled on the first guide rail (21) through the first connecting block (22) and contacts the first annular convex surface. The first clamping assembly includes a second connecting block (24), a first elastic element (25), and a clamping body (26). The clamping body (26) is fixed to the mounting bracket (1) through the second connecting block (24) and connected to the cam follower structure (23). The first elastic element (25) is connected between the cam follower structure (23) and the clamping body (26). When the first turntable (51) and the second turntable (52) rotate, the first annular convex surface causes the cam follower structure (23) to reciprocate along the extension direction of the first guide rail (21), and the cam follower structure (23) causes the jaws of the clamping body (26) to open or close.

9. The battery testing equipment according to claim 7, characterized in that, The second mating part has a second annular convex surface (531); The second transmission assembly includes a second guide rail (31) and a cam link structure (32). The second guide rail (31) is fixed on the mounting bracket (1). One end of the cam link structure (32) contacts the second annular convex surface (531), and the other end is connected to the second clamping assembly. The second clamping assembly includes a second elastic element (33), a first jaw (34) and a second jaw (35). The first jaw (34) and the second jaw (35) are slidably mounted on the second guide rail (31), and the second elastic element (33) is connected between the first jaw (34) and the second jaw (35). When the first turntable (51) and the second turntable (52) rotate, the second annular convex surface (531) enables the cam linkage structure (32) to drive the first gripper (34) and the second gripper (35) to move away from each other along the extension direction of the second guide rail (31), and the second elastic element (33) resets the first gripper (34) and the second gripper (35).

10. A battery production line, characterized in that, include: The clamping device according to any one of claims 1-4; or comprising, The battery testing device according to any one of claims 5-9.

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