Battery detection device and detection equipment

Abstract

The utility model relates to a battery detection device and detection equipment, and the device comprises a camera detection unit which comprises a first detection camera and a second detection camera, and the first detection camera and the second detection camera are aligned with a to-be-detected battery at a preset angle; the camera distance changing mechanism comprises a first driving assembly and a distance changing assembly, one end of the distance changing assembly is connected to the first detection camera, the other opposite end of the distance changing assembly is connected to the second detection camera, and the output end of the first driving assembly is connected to the distance changing assembly; the first detection camera and the second detection camera are driven to get close to each other or get away from each other in the length direction of the variable-pitch assembly. According to the battery detection device, the problem that the working efficiency is not high due to the fact that manual reinspection is needed in the detection process is effectively solved, the efficiency of the battery detection process is guaranteed while the accuracy of the battery detection process is improved, and therefore the detection requirement for large-batch batteries in the battery production process is met, and the higher requirement of the battery production process is met.

Description

Technical Field

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

[0002] With the continuous advancement of battery manufacturing technology and the increasing diversification of battery product applications, the requirements for the battery manufacturing process are becoming increasingly stringent. Welding is widely used in various stages of battery production. However, due to impurities and contaminants in the welding materials themselves, sparks or porosity can occur during welding. Therefore, it is necessary to inspect the welding quality of the batteries after the welding process.

[0003] Since welding defects such as blasting and porosity are difficult to detect, in relevant battery testing technologies, testing agencies usually cooperate with manual re-inspection processes. However, the manual re-inspection process is slow and cannot meet the needs of mass battery production. Utility Model Content

[0004] Therefore, it is necessary to provide a battery testing device and testing equipment to address the aforementioned technical problems.

[0005] A battery testing device, comprising:

[0006] The camera detection unit includes a first detection camera and a second detection camera, wherein the first detection camera and the second detection camera are aligned with the battery to be detected at a preset angle;

[0007] A camera zoom mechanism includes a first drive component and a zoom component. One end of the zoom component is connected to the first detection camera, and the other end of the zoom component is connected to the second detection camera. The output end of the first drive component is connected to the zoom component to drive the first detection camera and the second detection camera to move closer to or further away from each other along the length direction of the zoom component.

[0008] In one embodiment, the battery detection device further includes a rotating mechanism connected to the side of the camera zoom mechanism away from the camera detection unit, the rotating mechanism being capable of driving the camera zoom mechanism to rotate.

[0009] In one embodiment, the rotating mechanism includes a rotating drive unit and a rotating transmission unit, the output end of the rotating drive unit is connected to one end of the rotating transmission unit, and the opposite end of the rotating transmission unit is connected to the camera pitch-changing mechanism.

[0010] In one embodiment, the battery detection device further includes a cyclic motion mechanism connected to the side of the camera telemetry mechanism away from the camera detection unit, the cyclic motion mechanism being able to drive the camera telemetry mechanism to perform reciprocating motion.

[0011] In one embodiment, the cyclic motion mechanism includes a cyclic drive unit, a reciprocating motion track, and a cyclic transmission unit. The cyclic transmission unit is movably disposed on the reciprocating motion track. One side of the cyclic transmission unit is connected to the output end of the cyclic drive unit, and the other side of the cyclic transmission unit is connected to the camera pitch-changing mechanism.

[0012] In one embodiment, the pitch-changing assembly includes a bidirectional lead screw unit and a pitch-changing auxiliary guide rail. The first drive assembly includes a pitch-changing drive component and a synchronous transmission component. The bidirectional lead screw unit is disposed on the pitch-changing auxiliary guide rail, and the pitch-changing drive component is connected to one end of the bidirectional lead screw unit through the synchronous transmission component.

[0013] In one embodiment, the battery detection device further includes a rotating mechanism, and the camera variable-range mechanism further includes a plurality of rotating connecting columns and a first mounting plate, with one end of the plurality of rotating connecting columns spaced apart from the first mounting plate, and the other ends of the plurality of rotating connecting columns connected to the rotating mechanism.

[0014] In one embodiment, the camera pitch-changing mechanism further includes a position sensing unit and a first mounting plate, wherein the position sensing unit is disposed on the first mounting plate along the length direction of the pitch-changing assembly.

[0015] In one embodiment, the camera detection unit further includes a camera fine-tuning component connected to the first detection camera and the second detection camera, the camera fine-tuning component being capable of adjusting the pose of the first detection camera and the second detection camera.

[0016] A testing device, comprising:

[0017] Such as the battery testing device mentioned above.

[0018] The technical effects of the embodiments provided in this application are as follows:

[0019] In the aforementioned battery testing device, when testing the welded battery, the first driving component in the camera pitch-changing mechanism drives the pitch-changing component, which is also located in the camera pitch-changing mechanism, to change pitch along the length direction of the pitch-changing component. Simultaneously, it drives the first and second detection cameras in the camera detection unit connected to opposite ends of the pitch-changing component to move closer or further apart along the length direction of the pitch-changing component. Compared to the traditional testing method that requires manual re-inspection, the camera detection unit replaces the manual re-inspection process. That is, the first and second detection cameras in the camera detection unit are tilted at a certain angle to detect, which can simultaneously detect the top and sides of the welded battery and obtain an accurate image of the battery weld appearance. This greatly improves the accuracy of battery testing, ensures no missed detections, and eliminates the need for manual re-inspection. It effectively improves the problem of low work efficiency caused by the need for manual re-inspection during the testing process. While improving the accuracy of the battery testing process, it also ensures the efficiency of the battery testing process, thereby meeting the testing needs of large batches of batteries in the battery production process and thus meeting the higher requirements of the battery production process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the battery detection device in one embodiment;

[0022] Figure 2 This is a schematic diagram of the specific structure of the camera detection unit 10 in one embodiment;

[0023] Figure 3 This is a schematic diagram of the specific structure of the camera zoom mechanism 20 in one embodiment;

[0024] Figure 4 This is a schematic diagram of the specific structure of the rotating mechanism 30 in one embodiment. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] Figure 1 This is a schematic diagram of the battery detection device in one embodiment.

[0030] In this embodiment, as Figure 1 As shown, the battery testing device is used to test batteries after welding. The battery testing device includes a camera testing unit 10, a camera pitch control mechanism 20, a rotation mechanism 30, a cyclic motion mechanism 40, and a support mechanism 50.

[0031] like Figure 2 As shown, the camera detection unit 10 includes a first detection camera 110, a second detection camera 120, and a camera fine-tuning component 130. The first detection camera 110 and the second detection camera 120 are aligned with the battery to be detected at a preset angle. The camera fine-tuning component 130 is connected to the first detection camera 110 and the second detection camera 120, and the camera fine-tuning component 130 can adjust the position and orientation of the first detection camera 110 and the second detection camera 120.

[0032] The camera detection unit 10 can be connected to the camera pitch-adjusting mechanism 20, capable of aligning with the top and sides of the welded battery at a preset angle, and outputting camera light to the weld seams located on the top and sides of the battery to obtain images of the weld seams on the top and sides of the battery, and transmitting the acquired data to the machine tool. The first detection camera 110 can be a 3D camera that aligns with the top of the welded battery at a preset angle, and outputs camera light to the weld seams located on the top of the battery to obtain images of the weld seams on the top of the battery. The second detection camera 120 can be a 3D camera that aligns with the sides of the welded battery at a preset angle, and outputs camera light to the weld seams located on the sides of the battery to obtain images of the weld seams on the sides of the battery. The camera fine-tuning component 130 can be connected to the first detection camera 110 and the second detection camera 120, and capable of adjusting the height and tilt angles of the first detection camera 110 and the second detection camera 120 to change the pose of the first detection camera 110 and the second detection camera 120.

[0033] The camera detection unit 10 also includes a camera protective cover 140, a camera mounting plate 150, a lead screw and nut connecting block 160, a slider connecting plate 170, and a floating connecting block pressure plate 180. The camera protective cover 140 is connected to the first detection camera 110 and the second detection camera 120 for isolation and protection. The camera protective cover 140, the camera fine-tuning component 130, and the floating connecting block pressure plate 180 are connected to the camera mounting plate 150. The lead screw and nut connecting block 160 and the slider connecting plate 170 are connected to the floating connecting block pressure plate 180. When inspecting the welded battery, the camera fine-tuning component 130 drives the position... The screw nut connecting block 160 and slider connecting plate 170 on the floating connecting block pressure plate 180 are positioned to adjust the height and tilt angles of the camera protective cover 140, the first detection camera 110 and the second detection camera 120 located on the camera mounting plate 150. While ensuring the position adjustment accuracy, the preset detection posture of the first detection camera 110 and the second detection camera 120 can be quickly adjusted, thereby improving the efficiency and accuracy of weld seam detection on the top and sides of the welded battery, and thus ensuring that the requirements for mass battery detection are met.

[0034] like Figure 3As shown, the camera zoom mechanism 20 includes a first drive assembly 210, a zoom assembly 220, multiple rotating connecting posts 230, a position sensing unit 240, and a first mounting plate 250. One end of the zoom assembly 220 is connected to the first detection camera 110, and the opposite end of the zoom assembly 220 is connected to the second detection camera 120. The output end of the first drive assembly 210 is connected to the zoom assembly 220 to drive the first detection camera 110 and the second detection camera 120 to move closer or further apart along the length of the zoom assembly 220. One end of each of the multiple rotating connecting posts 230 is spaced apart on the first mounting plate 250, and the opposite ends of each of the multiple rotating connecting posts 230 are connected to the rotating mechanism 30. The position sensing unit 240 is disposed on the first mounting plate 250 along the length of the zoom assembly 220.

[0035] The camera pitch-changing mechanism 20 can be a first detection camera 110 and a second detection camera 120 respectively connected to the camera detection unit 10, and is a functional structure capable of changing the distance between the first detection camera 110 and the second detection camera 120. The pitch-changing component 220 can be a functional component connected to the first drive component 210 and with its opposite ends connected to the first detection camera 110 and the second detection camera 120 respectively, and is capable of driving the first detection camera 110 and the second detection camera 120 to move synchronously along the length direction of the pitch-changing component 220.

[0036] The pitch-changing assembly 220 includes a bidirectional lead screw unit 2210 and a pitch-changing auxiliary guide rail 2220. The first drive assembly 210 includes a pitch-changing drive component 2110 and a synchronous transmission component 2120. The bidirectional lead screw unit 2210 is disposed on the pitch-changing auxiliary guide rail 2220, and the pitch-changing drive component 2110 is connected to one end of the bidirectional lead screw unit 2210 through the synchronous transmission component 2120. Optionally, the pitch-changing drive component 2110 can be a drive motor; the synchronous transmission component 2120 can be a synchronous transmission belt; the output end of the drive motor is connected to one end of the pitch-changing assembly 220 through the synchronous transmission belt; and the position sensing unit 240 can be a position sensor.

[0037] When inspecting the welded battery, the drive motor transmits the driving force to one end of the bidirectional lead screw unit 2210 located on the variable pitch auxiliary guide rail 2220 through the synchronous transmission belt. The two ends of the bidirectional lead screw unit 2210 move synchronously, and drive the first detection camera 110 and the second detection camera 120 connected to the two ends of the bidirectional lead screw unit 2210 to move closer or further away from each other along the length direction of the bidirectional lead screw unit 2210, thereby changing the distance between the first detection camera 110 and the second detection camera 120, so as to realize the detection of different side lengths of the welded battery, and also improve the applicability to welded batteries of different specifications.

[0038] The rotating mechanism 30 is connected to the side of the camera zoom mechanism 20 away from the camera detection unit 10, and the rotating mechanism 30 can drive the camera zoom mechanism 20 to rotate; for example Figure 4 As shown, the rotating mechanism 30 includes a rotating drive unit 310 and a rotating transmission unit 320. The output end of the rotating drive unit 310 is connected to one end of the rotating transmission unit 320, and the other end of the rotating transmission unit 320 is connected to the camera variable pitch mechanism 20.

[0039] The rotating mechanism 30 can be a functional structure disposed between the camera telemetry mechanism 20 and the cyclic motion mechanism 40, capable of driving the camera telemetry mechanism 20 to rotate and synchronously moving with the cyclic motion mechanism 40. The rotating drive unit 310 can be a drive unit capable of driving the camera telemetry mechanism 20 to rotate. The rotating transmission unit 320 can be a functional structure connected to the rotating drive unit 310 and the camera telemetry mechanism 20, capable of transmitting the rotational motion of the rotating drive unit 310 to the camera telemetry mechanism 20 so that the camera telemetry mechanism 20 follows the rotating drive unit 310 in rotating motion.

[0040] Optionally, the rotary drive unit 310 includes a rotary drive motor 3110, a reducer 3120, and a reducer mounting plate 3130. The output end of the rotary drive motor 3110 is connected to the reducer 3120, and the reducer 3120 is mounted on the reducer mounting plate 3130. The rotary transmission unit 320 includes a flange connecting plate 3210 and a connecting mounting plate 3220. The connecting mounting plate 3220 is connected to the reducer 3120 through the flange connecting plate 3210.

[0041] When inspecting the welded battery, the rotary drive motor 3110 and reducer 3120 in the rotary drive unit 310 work together to rotate, driving the rotary transmission unit 320 to follow the rotary drive unit 310 in rotation, and synchronously driving the camera detection unit 10 connected to the mounting plate 3220 in the rotary transmission unit 320 to rotate, thereby changing the horizontal rotation angle of the first detection camera 110 and the second detection camera 120 in the camera detection unit 10, so as to realize the complete inspection of the weld seams on the top and sides of the welded battery, thereby ensuring the accuracy of battery defect detection.

[0042] The cyclic motion mechanism 40 is connected to the side of the camera telemetry mechanism 20 away from the camera detection unit 10. The cyclic motion mechanism 40 can drive the camera telemetry mechanism 20 to perform reciprocating motion. The cyclic motion mechanism 40 includes a cyclic drive unit 410, a reciprocating motion track 420 and a cyclic transmission unit 430. The cyclic transmission unit 430 is movably disposed on the reciprocating motion track 420. One side of the cyclic transmission unit 430 is connected to the output end of the cyclic drive unit 410, and the other side of the cyclic transmission unit 430 is connected to the camera telemetry mechanism 20.

[0043] The cyclic motion mechanism 40 can be a functional structure disposed on the support mechanism 50 and connected to the camera detection unit 10, the camera pitch-changing mechanism 20, and the rotation mechanism 30, capable of driving the camera detection unit 10, the camera pitch-changing mechanism 20, and the rotation mechanism 30 to perform synchronous cyclic reciprocating motion. The cyclic drive unit 410 can be a functional unit disposed on the support mechanism 50, capable of driving the cyclic transmission unit 430 to perform cyclic reciprocating motion along the reciprocating motion track 420. The reciprocating motion track 420 can be a track disposed on the support mechanism 50 and connected to the cyclic transmission unit 430, capable of providing cyclic reciprocating motion stroke constraints for the cyclic transmission unit 430. The cyclic transmission unit 430 can be connected to the camera detection unit 10, the camera pitch mechanism 20 and the rotation mechanism 30, and can transmit the cyclic reciprocating motion of the cyclic transmission unit 430 to the camera detection unit 10, the camera pitch mechanism 20 and the rotation mechanism 30 so as to drive the camera detection unit 10, the camera pitch mechanism 20 and the rotation mechanism 30 to follow the cyclic transmission unit 430 to perform cyclic reciprocating motion synchronously along the reciprocating motion track 420.

[0044] Optionally, the cyclic drive unit 410 can be a linear drive module or a nonlinear drive module. The cyclic transmission unit 430 can be a transmission support. The reciprocating motion track 420 can be a linear motion track or a nonlinear motion track.

[0045] When inspecting the welded battery, the cyclic drive unit 410 drives the cyclic transmission unit 430 to cyclically reciprocate along the reciprocating motion track 420, and drives the camera detection unit 10, camera pitch mechanism 20 and rotation mechanism 30 connected to the cyclic transmission unit 430 to synchronously follow the cyclic transmission unit 430 to cyclically reciprocate along the reciprocating motion track 420 until the camera detection unit 10, camera pitch mechanism 20 and rotation mechanism 30 move to the preset position, thereby realizing a large range of position adjustment of the first detection camera 110 and the second detection camera 120 in the camera detection unit 10.

[0046] The support mechanism 50 can be a functional structure connected to the camera detection unit 10, the camera pitch-changing mechanism 20, the rotation mechanism 30, and the cyclic motion mechanism 40, providing support for these components. Optionally, the support mechanism 50 can be a linear support structure, applied in scenarios requiring linear drive modules and linear drive tracks, such as supporting a gantry; the support mechanism 50 can also be a non-linear support structure, applied in scenarios requiring non-linear drive modules and non-linear drive tracks, such as an arc-shaped or circular support structure.

[0047] The pitch-changing component 220 in the camera pitch-changing mechanism 20 drives the bidirectional lead screw unit 2210 to rotate via a synchronous transmission belt to change the pitch, thereby moving the first detection camera 110 and the second detection camera 120 in the camera detection unit 10 to the corresponding positions. The cyclic drive unit 410 in the cyclic motion mechanism 40 drives the first detection camera 110 and the second detection camera 120 in the camera detection unit 10 to detect the weld located on the top, i.e., the side, of the long side of the battery. After the long side of the battery is detected, the rotation mechanism 30 rotates the first detection camera 110 and the second detection camera 120 in the camera detection unit 10. At the same time, the pitch-changing component 220 in the camera pitch-changing mechanism 20 again drives the bidirectional lead screw unit 2210 to rotate via a synchronous transmission belt to change the pitch, thereby moving the first detection camera 110 and the second detection camera 120 in the camera detection unit 10 to the corresponding positions. The machine 120 moves to the corresponding position and detects the short side of the battery. That is, the distance between the first detection camera 110 and the second detection camera 120 in the two camera detection units 10 is changed by rotating the synchronous drive component bidirectional lead screw unit 2210 to adapt to the switching of the long and short sides of the battery. The camera light output by the first detection camera 110 and the second detection camera 120 is tilted at a certain angle to the battery weld. The camera light simultaneously detects the top and side welds of the battery. The two directional images are combined to form a complete weld appearance image and the data is transmitted to the machine. In addition, the camera fine-tuning component 130 in the camera detection unit 10 has a camera attitude adjustment function, which can adjust the height of the first detection camera 110 and the second detection camera 120 and the tilt angle in the horizontal and vertical directions, and can quickly adjust the detection attitude of the first detection camera 110 and the second detection camera 120.

[0048] The first inspection camera 110 and the second inspection camera 120 in the camera inspection unit 10 are tilted at a certain angle to inspect the top and sides of the welded battery at a preset angle, ultimately obtaining an accurate image of the battery weld appearance. This greatly improves the accuracy of battery inspection, ensures no missed inspections, eliminates the need for manual re-inspection, and reduces production costs. Furthermore, this battery inspection mechanism is simple and quick to set up. After adjusting the angle once, when changing battery models, only the parameters of the pitch-changing component 220 in the camera pitch-changing mechanism 20 need to be adjusted to achieve high-speed and accurate inspection of the battery weld appearance.

[0049] This application also provides a testing device, which includes the battery testing device in the above embodiments.

[0050] The division of the various modules in the above-described battery testing device is only for illustrative purposes. In other embodiments, the battery testing device can be divided into different modules as needed to complete all or part of the functions of the above-described battery testing device.

[0051] The battery testing device and equipment provided in the above embodiments, when testing the welded battery, the first driving component in the camera pitch-changing mechanism drives the pitch-changing component, which is also set in the camera pitch-changing mechanism, to change pitch along the length direction of the pitch-changing component. Simultaneously, it drives the first and second detection cameras in the camera detection unit connected to opposite ends of the pitch-changing component to move closer or further away from each other along the length direction of the pitch-changing component. Compared with the traditional testing method that requires manual re-inspection, the camera detection unit replaces the manual re-inspection process. That is, the first and second detection cameras in the camera detection unit are tilted at a certain angle to detect, which can simultaneously detect the top and sides of the welded battery and obtain an accurate image of the appearance of the battery weld. This greatly improves the accuracy of battery testing, ensures no missed detections, and eliminates the need for manual re-inspection. It effectively improves the problem of low work efficiency caused by the need for manual re-inspection during the testing process. While improving the accuracy of the battery testing process, it also ensures the efficiency of the battery testing process, thereby meeting the testing needs of large batches of batteries in the battery production process and meeting the higher requirements of the battery production process. It has important economic value and practical application value.

[0052] The technical features of the above embodiments can be combined in any way. 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.

[0053] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery testing device, characterized in that, include: The camera detection unit includes a first detection camera and a second detection camera, wherein the first detection camera and the second detection camera are aligned with the battery to be detected at a preset angle; A camera zoom mechanism includes a first drive component and a zoom component. One end of the zoom component is connected to the first detection camera, and the other end of the zoom component is connected to the second detection camera. The output end of the first drive component is connected to the zoom component to drive the first detection camera and the second detection camera to move closer to or further away from each other along the length direction of the zoom component.

2. The battery testing device according to claim 1, characterized in that, The battery detection device also includes a rotating mechanism connected to the side of the camera zoom mechanism away from the camera detection unit, which can drive the camera zoom mechanism to rotate.

3. The battery testing device according to claim 2, characterized in that, The rotating mechanism includes a rotating drive unit and a rotating transmission unit. The output end of the rotating drive unit is connected to one end of the rotating transmission unit, and the other end of the rotating transmission unit is connected to the camera variable pitch mechanism.

4. The battery testing device according to claim 1, characterized in that, The battery detection device also includes a cyclic motion mechanism connected to the side of the camera variable pitch mechanism away from the camera detection unit, and the cyclic motion mechanism can drive the camera variable pitch mechanism to perform reciprocating motion.

5. The battery testing device according to claim 4, characterized in that, The cyclic motion mechanism includes a cyclic drive unit, a reciprocating motion track, and a cyclic transmission unit. The cyclic transmission unit is movably mounted on the reciprocating motion track. One side of the cyclic transmission unit is connected to the output end of the cyclic drive unit, and the other side of the cyclic transmission unit is connected to the camera variable pitch mechanism.

6. The battery testing device according to claim 1, characterized in that, The pitch-changing assembly includes a bidirectional lead screw unit and a pitch-changing auxiliary guide rail. The first drive assembly includes a pitch-changing drive component and a synchronous transmission component. The bidirectional lead screw unit is disposed on the pitch-changing auxiliary guide rail, and the pitch-changing drive component is connected to one end of the bidirectional lead screw unit through the synchronous transmission component.

7. The battery testing device according to claim 1, characterized in that, The battery detection device further includes a rotating mechanism, and the camera variable-range mechanism further includes multiple rotating connecting columns and a first mounting plate. One end of the multiple rotating connecting columns is spaced apart from the first mounting plate, and the other end of the multiple rotating connecting columns is connected to the rotating mechanism.

8. The battery testing device according to claim 7, characterized in that, The camera pitch-changing mechanism further includes a position sensing unit and a first mounting plate, wherein the position sensing unit is disposed on the first mounting plate along the length direction of the pitch-changing component.

9. The battery testing device according to claim 1, characterized in that, The camera detection unit further includes a camera fine-tuning component, which is connected to the first detection camera and the second detection camera. The camera fine-tuning component is capable of adjusting the pose of the first detection camera and the second detection camera.

10. A testing device, characterized in that, include: The battery testing device as described in any one of claims 1 to 9.

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