Battery detection system and point inspection method thereof

Abstract

The invention discloses a battery detection system and a point inspection method of the battery detection system. The battery detection system is used for detecting the outer surface of a battery, and the outer surface of the battery comprises a top surface, a bottom surface, a first surface, a second surface, a third surface and a fourth surface. The battery detection system comprises a rack, a first conveying device, a first detection device, a bearing device, a second detection device and a processor. The first conveying device is connected to the top of the rack and used for clamping the third face and the fourth face and conveying the batteries. And the first detection device is used for shooting the bottom surface, the first surface and the second surface under the condition that the first conveying device clamps the battery. The bearing device is used for bearing batteries. And the second detection device is used for shooting the top surface, the third surface and the fourth surface under the condition that the battery is carried on the carrying device. The processor is used for detecting the battery images shot by the first detection device and the second detection device to obtain an outer surface detection result of the battery. According to the invention, the detection efficiency and precision can be effectively improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery detection system and a spot inspection method for the battery detection system. Background Art

[0002] With the development of new energy technology, batteries are used more and more widely, for example, in mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes and electric tools, etc.

[0003] The installed capacity of new energy power batteries is growing day by day. OEMs not only have higher requirements for battery performance, but also for battery appearance. In the battery production process, the accuracy and efficiency of battery appearance inspection have an important impact on the economic benefits of the battery. Therefore, how to effectively improve the inspection efficiency and accuracy of the battery inspection system is a technical issue that needs to be continuously improved in battery technology. Summary of the invention

[0004] In view of the above problems, the present application provides a battery detection system and a spot inspection method of the battery detection system, which can effectively improve the detection efficiency and accuracy of the battery outer surface.

[0005] In a first aspect, an embodiment of the present application provides a battery detection system for detecting the outer surface of a battery, wherein the outer surface of the battery includes a top surface, a bottom surface, and a peripheral surface connected between the top surface and the bottom surface, wherein the peripheral surface includes a first surface and a second surface, which are arranged opposite to each other, and a third surface and a fourth surface, which are arranged opposite to each other, and the battery detection system includes a frame, a first conveying device, a first detection device, a carrying device, a second detection device, and a processor.

[0006] The first conveying device is connected to the top of the frame, and is used to clamp the third surface and the fourth surface and convey the battery. The first detection device is used to photograph the bottom surface, the first surface and the second surface when the first conveying device clamps the battery. The carrying device is used to carry the battery. The second detection device is used to photograph the top surface, the third surface and the fourth surface when the battery is carried on the carrying device. The processor is used to detect the images of the battery photographed by the first detection device and the second detection device to obtain the outer surface detection result of the battery.

[0007] Among them, the frame is provided with a first inspection station and a second inspection station arranged along the first direction, the first inspection device is arranged at the first inspection station, the carrying device and the second inspection device are arranged at the second inspection station, and the first conveying device is used to convey the battery along the first direction and the vertical direction.

[0008] The first detection device includes a second moving component, a first shooting component, a second shooting component and a third shooting component, wherein the first shooting component is used to shoot the bottom surface, the second shooting component is used to shoot the first surface, and the third shooting component is used to shoot the second surface. The first shooting component, the second shooting component and the third shooting component are all connected to the second moving component, and the second moving component is used to drive the first shooting component, the second shooting component and the third shooting component to move along the second direction, and the first direction, the second direction and the vertical direction are perpendicular to each other.

[0009] In the above technical solution, when it is necessary to detect the outer surface of the battery, the first conveying device can convey the battery, and the first detection device and the second detection device can automatically align the outer surface of the corresponding battery, so as to realize automatic acquisition of the outer surface image of the battery, and then, the processor generates the outer surface detection result of the battery by identifying each outer surface image. Based on this, manpower can be effectively saved, and the detection result can be determined by the processor, which can improve the detection efficiency and accuracy.

[0010] In addition, by setting up the first detection device and the second detection device, and reasonably dividing the detection range of the first detection device and the second detection device according to the specific form of the battery conveyed by the first conveying device, the connection between multiple processes is strengthened, thereby further improving the detection efficiency.

[0011] By setting up the first shooting component, the second shooting component and the third shooting component and shooting the bottom surface, the first surface and the second surface of the battery respectively, compared with the method of using a single shooting component to shoot the bottom surface, the first surface and the second surface of the battery one by one, this design can greatly shorten the detection time and improve the detection efficiency. In addition, by setting up the second moving component to drive the first shooting component, the second shooting component and the third shooting component to move synchronously, not only can the integrity of the bottom surface image, the first surface image and the second surface image be improved, but also the consistency and fluency of the entire detection process can be improved.

[0012] In some embodiments of the first aspect, the bottom surface includes a first portion, a second portion, and a third portion, the first portion is connected between the third surface and the second portion, and the third portion is connected between the fourth surface and the second portion. The first shooting component includes a first line scan camera and a first area array camera, the first line scan camera is used to shoot the entire bottom surface, and the first area array camera is used to shoot the first portion and the third portion. The second shooting component includes a second line scan camera, and the second line scan camera is used to shoot the entire first surface. The third shooting component includes a third line scan camera, and the third line scan camera is used to shoot the entire second surface.

[0013] The above technical solution uses a line scan camera, a combination of a line scan camera and an area array camera respectively according to the different structural characteristics of the bottom surface, the first surface and the second surface of the battery, which can improve the integrity and clarity of the bottom surface image, the first surface image and the second surface image, thereby helping to further improve the overall detection accuracy.

[0014] In some embodiments of the first aspect, the second detection device includes a third moving component, a fourth shooting component, a fifth shooting component and a sixth shooting component, the fourth shooting component is used to shoot the top surface, the fifth shooting component is used to shoot the third surface, and the sixth shooting component is used to shoot the fourth surface. The fourth shooting component is connected to the third moving component, the third moving component is used to drive the fourth shooting component to move along the second direction, the fifth shooting component and the sixth shooting component are relatively and fixedly arranged along the second direction, and the first direction, the second direction and the vertical direction are perpendicular to each other. The bearing device is located between the fifth shooting component and the sixth shooting component in the second direction.

[0015] The above technical solution sets the fourth shooting component, the fifth shooting component and the sixth shooting component and respectively shoots the top surface, the third surface and the fourth surface of the battery. Compared with the method of using a single shooting component to shoot the top surface, the third surface and the fourth surface of the battery one by one, this design can greatly shorten the detection time and improve the detection efficiency. In addition, the length and area of ​​the top surface are relatively large. By setting the third moving component to drive the fourth shooting component to move, the integrity of the top surface image can be improved, thereby improving the detection accuracy. The length and area of ​​the third surface and the fourth surface are relatively small. When the fifth shooting component and the sixth shooting component are not moved and can also completely shoot the third surface image and the fourth surface image, the fifth shooting component and the sixth shooting component are relatively and fixedly arranged along the second direction, which can reduce the overall structural complexity of the second detection device.

[0016] In some embodiments of the first aspect, the top surface includes a fourth portion, a fifth portion, and a sixth portion, the fourth portion is connected between the third surface and the fifth portion, and the sixth portion is connected between the fourth surface and the fifth portion. The fourth shooting assembly includes a fourth line scan camera and a second array camera, the fourth line scan camera is used to shoot the entire top surface, and the second array camera is used to shoot the fourth portion and the sixth portion. The fifth shooting assembly includes a third array camera, and the third array camera is used to shoot the entire third surface. The sixth shooting assembly includes a fourth array camera, and the fourth array camera is used to shoot the entire fourth surface.

[0017] The above technical solution uses a combination of area array cameras, line scan cameras and area array cameras respectively according to the different structural characteristics of the top surface, third surface and fourth surface of the battery, which can improve the integrity and clarity of the top surface image, the third surface image and the fourth surface image, thereby helping to further improve the overall detection accuracy.

[0018] In some embodiments of the first aspect, the first conveying device includes a clamping assembly and a first moving assembly, the clamping assembly is connected to the first moving assembly and is used to clamp the third surface and the fourth surface, and the first moving assembly is used to drive the clamping assembly to move along the first direction and along the vertical direction.

[0019] In some embodiments of the first aspect, the clamping assembly includes a first clamping jaw and a second clamping jaw arranged opposite to each other along a second direction, the first clamping jaw and the second clamping jaw are configured to be able to move toward or away from each other along the second direction, and the first direction, the second direction and the vertical direction are perpendicular to each other. The first clamping jaw is used to abut against the third surface, and the second clamping jaw is used to abut against the fourth surface.

[0020] The above technical solution can adapt to batteries of different sizes and shapes. By adjusting the distance and clamping force between the first clamping jaw and the second clamping jaw, the clamping assembly can be in full contact with the battery surface, thereby improving the stability of the battery during transportation.

[0021] In some embodiments of the first aspect, the first clamping jaw includes a first clamping portion and a first supporting portion, the first supporting portion is arranged below the first clamping portion in the vertical direction, and the first supporting portion is configured to be movable in the second direction. The second clamping jaw includes a second clamping portion and a second supporting portion, the second supporting portion is arranged below the second clamping portion in the vertical direction, and the second supporting portion is configured to be movable in the second direction. The first clamping portion is used to abut against the third surface, the first supporting portion is used to abut against the bottom surface, the second clamping portion is used to abut against the fourth surface, and the second supporting portion is used to abut against the bottom surface.

[0022] The above technical solution further introduces the first support part and the second support part to provide additional support for the bottom surface of the battery, thereby reducing the risk of the battery sinking or tilting due to gravity during the clamping process, and can further improve the stability of the battery during transportation.

[0023] In some embodiments of the first aspect, the first conveying device also includes a self-locking component, which is connected between the clamping component and the first moving component, and the self-locking component is used to brake the clamping component when the clamping component moves along the first direction to reach a first preset state and / or moves along the vertical direction to reach a second preset state.

[0024] The above technical solution can reduce the risk caused by unexpected failure of the first conveying device by introducing a self-locking component, and improve the overall reliability of the battery detection system.

[0025] In some embodiments of the first aspect, the battery detection system further includes a discharge device and a second conveying device, the second detection device is disposed downstream of the first detection device, and the discharge device is disposed downstream of the second detection device. The second conveying device is used to convey the battery to the discharge device after the processor obtains the outer surface detection result, and the discharge device is used to discharge the battery.

[0026] After the battery inspection is completed, the second conveying device can automatically transfer the battery to the discharging device, realizing the fully automated connection of the battery inspection system from feeding to inspection and then to discharging, so as to further improve the inspection efficiency of battery appearance inspection.

[0027] In some embodiments of the first aspect, the discharging device includes a first output assembly and a second output assembly, the first output assembly is arranged along a first direction, the second output assembly is arranged along a second direction, and the first direction intersects the second direction. The first output assembly is used to discharge batteries with qualified outer surface detection results, and the second output assembly is used to discharge batteries with unqualified outer surface detection results.

[0028] The above technical solution can discharge qualified batteries and unqualified batteries according to the external surface inspection results of the batteries, without the need for subsequent manual sorting, which can further save manpower and improve overall production efficiency.

[0029] In some embodiments of the first aspect, the discharging device further includes a steering assembly, the steering assembly is connected between the inlet end of the first output assembly and the inlet end of the second output assembly, and the steering assembly is configured to be able to rotate around a vertical axis. The second conveying device is also used to convey the battery to the steering assembly after the processor obtains the outer surface detection result, and the steering assembly is used to convey the battery with a qualified outer surface detection result to the first output assembly, and convey the battery with an unqualified outer surface detection result to the second output assembly.

[0030] The above technical solution introduces a steering component to divert the batteries that have completed testing, and guides qualified batteries and unqualified batteries to the first output component and the second output component respectively, which helps to further strengthen the connectivity between different processes in the battery testing system, thereby further improving the testing efficiency.

[0031] In some embodiments of the first aspect, the first output assembly includes a first transfer assembly, a second transfer assembly, a first transmission layer and a second transmission layer, the first transmission layer and the second transmission layer both extend along a first direction, the first transmission layer and the second transmission layer are spaced apart in a vertical direction and both are connected between the first transfer assembly and the second transfer assembly, and the first direction is perpendicular to the vertical direction. A tray is provided on at least one of the first transmission layer and the second transmission layer, the tray is used to carry batteries, the first transmission layer and the second transmission layer are respectively used to transport the tray along the first direction, and the transport directions of the first transmission layer and the second transmission layer are opposite. The first transfer assembly is used to transfer the tray located on the first transmission layer to the second transmission layer, and the second transfer assembly is used to transfer the tray located on the second transmission layer to the first transmission layer.

[0032] The cooperation between the first transmission layer and the second transmission layer of the above technical solution realizes the circular transmission of the pallet in the double-layer structure through the cooperation of the first transfer component and the second transfer component, so that the first output component can realize efficient transmission operation in a limited space, thereby improving space utilization and transportation efficiency.

[0033] In some embodiments of the first aspect, the first detection device, the second detection device and the discharging device are arranged along the first direction. The carrying device is configured to be able to reciprocate along the first direction.

[0034] The above technical solution can reduce the conveying distance of the second conveying device, thereby reducing the time that the battery is suspended in the air to a certain extent, thereby reducing the risk of the battery falling.

[0035] In some embodiments of the first aspect, the first conveying device is also used to clamp and convey the profiling block, the profiling block matches the structure of the battery, the profiling block includes a profiling bottom surface corresponding to the bottom surface, a profiling top surface corresponding to the top surface, a profiling first surface corresponding to the first surface, a profiling second surface corresponding to the second surface, a profiling third surface corresponding to the third surface, and a profiling fourth surface corresponding to the fourth surface, wherein the first conveying device is used to clamp the profiling third surface and the profiling fourth surface. The profiling bottom surface, the profiling top surface, the profiling first surface, the profiling second surface, the profiling third surface and the profiling fourth surface are all provided with a first calibration piece. The first detection device is also used to photograph the profiling bottom surface, the profiling first surface and the profiling second surface when the first conveying device clamps the profiling block. The second detection device is also used to photograph the profiling top surface, the profiling third surface and the profiling fourth surface when the profiling block is carried on the carrying device. The processor is also used to detect the outer surface image of the profiling block photographed by the first detection device and the second detection device, and generate the spot inspection result of the first detection device and the spot inspection result of the second detection device.

[0036] According to the above technical solution, the first calibration piece used for spot checking the first detection device and the second detection device is integrated on the surface of the profiling block which is consistent with the shape and size of the real battery. On the one hand, it is convenient to keep each first calibration piece. On the other hand, it can automatically simulate the battery detection process, save labor costs, and make the spot check result more referenceable. Moreover, since the spot check of the first detection device and the second detection device can be performed during the operation of the battery detection system, the time loss caused by the downtime of the battery detection system can be effectively reduced.

[0037] In some embodiments of the first aspect, the contoured bottom surface, the contoured top surface, the contoured first surface, the contoured second surface, the contoured third surface, and the contoured fourth surface are each provided with a plurality of first calibration pieces, and at least two of the plurality of first calibration pieces located on the same contoured surface are staggered in a direction perpendicular to the contoured surface.

[0038] A plurality of first calibration pieces are arranged on each profiling surface so that there are sufficient reference points for calibration of the first detection device and the second detection device. The plurality of first calibration pieces located on the same profiling surface are not simply arranged on the same plane in space, but are staggered in a direction perpendicular to the profiling surface, which can provide reference points at different depths, thereby helping to improve the calibration accuracy of the depth of field shooting parameters of the first detection device and the second detection device.

[0039] In some embodiments of the first aspect, the first calibration piece includes a graphic feature piece and a grayscale feature piece, the graphic feature piece is used to calibrate the graphic shooting parameters of the first detection device and the second detection device, and the grayscale feature piece is used to calibrate the grayscale shooting parameters of the first detection device and the second detection device.

[0040] The above technical solution introduces graphic features and grayscale features to enable spot checks on multiple shooting parameters of the first detection device and the second detection device, thereby effectively improving the spot check effect.

[0041] In some embodiments of the first aspect, a second calibration piece is provided on at least one of the contoured bottom surface, the contoured top surface, the contoured first surface, the contoured second surface, the contoured third surface, and the contoured fourth surface, and the second calibration piece includes a protrusion, and the protrusion is used to calibrate the three-dimensional shooting parameters of the first detection device and the second detection device.

[0042] The above technical solution introduces the second calibration piece, so that the profiling block can be used for spot inspection and calibration of the 3D camera, thereby improving the applicability of the profiling block.

[0043] In a second aspect, the present application provides a spot inspection method for a battery detection system, comprising: When the profiling block is conveyed by the first conveying device and the first conveying device clamps the profiling block, the first detecting device photographs the profiling bottom surface, the profiling first surface and the profiling second surface of the profiling block to obtain a profiling bottom surface image, a profiling first surface image and a profiling second surface image; The profiling block is transported by the first conveying device and when the profiling block is carried on the carrying device, the profiling top surface, the profiling third surface and the profiling fourth surface of the profiling block are photographed by the second detecting device to obtain the profiling top surface image, the profiling third surface image and the profiling fourth surface image, wherein the profiling bottom surface, the profiling top surface, the profiling first surface, the profiling second surface, the profiling third surface and the profiling fourth surface are all provided with a first calibration piece; When the processor receives any one of the contoured bottom surface image, the contoured first surface image, the contoured second surface image, the contoured top surface image, the contoured third surface image and the contoured fourth surface image, the processor generates a spot inspection result corresponding to the spot inspection image based on the spot inspection image.

[0044] The above technical solution first performs a spot check on the battery detection system through a profiling block before using the battery detection system to perform an appearance inspection on the battery, so as to calibrate the first detection device and the second detection device, thereby improving the accuracy of subsequent battery appearance inspection. In addition, since the spot check on the first detection device and the second detection device can be performed during the operation of the battery detection system, the time loss caused by the downtime of the battery detection system can be effectively reduced.

[0045] In some embodiments of the second aspect, the spot inspection method further includes: Through the processor, when the inspection result corresponding to any of the profiling bottom surface image, the profiling first surface image, the profiling second surface image, the profiling top surface image, the profiling third surface image and the profiling fourth surface image is not passed, an early warning signal is output. Or, Through the processor, when the inspection results corresponding to any of the profiling bottom surface image, the profiling first surface image, the profiling second surface image, the profiling top surface image, the profiling third surface image and the profiling fourth surface image are all passed, a production signal is output.

[0046] The above technical solution automatically outputs a warning signal when the battery detection system fails the inspection, and promptly reminds the operator or the automation system to take corresponding measures. When the battery detection system passes the inspection, it automatically outputs a production signal so that the battery detection system automatically starts normal operation, which can effectively reduce time loss and further improve detection efficiency.

[0047] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic diagram of a top view of a battery detection system provided in some embodiments of the present application; Figure 2 A schematic diagram of a top view of a first detection device and a second detection device of a battery detection system provided in some embodiments of the present application; Figure 3 A schematic diagram of the main structure of a first detection device and a second detection device of a battery detection system provided in some embodiments of the present application; Figure 4 A schematic diagram of the three-dimensional structure of a first conveying device of a battery detection system provided in some embodiments of the present application; Figure 5 A partial three-dimensional structural schematic diagram of a clamping assembly of a battery detection system provided in some embodiments of the present application; Figure 6 A schematic diagram of the main structure of a first output component of a battery detection system provided in some embodiments of the present application; Figure 7 A schematic diagram of a three-dimensional structure of a battery provided in some embodiments of the present application; Figure 8 A schematic diagram of a three-dimensional structure of a profiling block provided in some embodiments of the present application; Fig. 9 A schematic flow chart of a spot inspection method for a battery detection system provided in some embodiments of the present application.

[0049] The reference numerals in the specific implementation manner are as follows: 100, battery; 110, top surface; 120, bottom surface; 130, first surface; 140, second surface; 150, third surface; 160, fourth surface; 200, profiling block; 210, profiling top surface; 220, profiling bottom surface; 230, profiling first surface; 240, profiling second surface; 250, profiling third surface; 260, profiling fourth surface; 270, first calibration piece; 280, second calibration piece; 10. Frame; 11. First inspection station; 12. Second inspection station; 20. First conveying device; 21. Clamping assembly; 211. First clamping jaw; 2111. First clamping portion; 2112. First supporting portion; 212. Second clamping jaw; 2121. Second clamping portion; 2122. Second supporting portion; 22. First moving assembly; 23. Self-locking assembly; 30. First detection device; 31. Second moving assembly; 32. First shooting assembly; 321. First line scan camera; 322. First array camera; 33. Second shooting assembly; 331. Second line scan camera; 34. Third shooting assembly; 341. Third line scan camera; 40. Carrying device; 50, second detection device; 51, third moving assembly; 52, fourth shooting assembly; 521, fourth line scan camera; 522, second array camera; 53, fifth shooting assembly; 531, third array camera; 54, sixth shooting assembly; 541, fourth array camera; 60. Processor; 70. Discharging device; 71. First output assembly; 711. First transfer assembly; 712. Second transfer assembly; 713. First transmission layer; 714. Second transmission layer; 72. Second output assembly; 73. Steering assembly; 80. A second conveying device; X, first direction; Y, second direction; Z, vertical direction. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0051] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0052] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0053] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0055] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0056] The term “plurality” used in this application refers to two or more (including two).

[0057] In the present application, the term "parallel" includes not only the absolutely parallel situation, but also the roughly parallel situation conventionally recognized in engineering; meanwhile, "vertical" includes not only the absolutely vertical situation, but also the roughly vertical situation conventionally recognized in engineering.

[0058] With the development of new energy technology, batteries are used more and more widely, for example, in mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes and electric tools, etc.

[0059] The installed capacity of new energy power batteries is growing day by day. OEMs not only have higher requirements for battery performance, but also for battery appearance. In the battery production process, the accuracy and efficiency of battery appearance inspection have an important impact on the economic benefits of the battery.

[0060] Currently, most inspections of battery appearance are done by manual visual inspection, which has a high risk of missed detection and false detection, and is very inefficient and costly.

[0061] There are also a few that use a battery appearance visual inspection system to inspect the appearance of the battery, but there are many kinds of battery appearance problems, including scratches, damage, dirt, foreign matter, labels and other defects, and some defects also involve depth requirements. As a result, the current battery appearance visual inspection system needs to set up a large number of different types of cameras to inspect the appearance of the battery, resulting in a very complex system as a whole, high maintenance costs, and easy interference between different components, resulting in occlusion of the battery, with a greater risk of missed inspections and false inspections; and the poor connection between different inspection processes leads to low inspection efficiency.

[0062] Based on the above considerations, in order to improve the efficiency and accuracy of detection of the outer surface of the battery, an embodiment of the present application provides a battery detection system for detecting the outer surface of the battery, the outer surface of the battery includes a top surface, a bottom surface and a peripheral surface connected between the top surface and the bottom surface, the peripheral surface includes a first surface and a second surface arranged opposite to each other, and a third surface and a fourth surface arranged opposite to each other, the battery detection system includes a frame, a first conveying device, a first detection device, a carrying device, a second detection device and a processor.

[0063] The first conveying device is connected to the top of the frame, and is used to clamp the third surface and the fourth surface and convey the battery. The first detection device is used to photograph the bottom surface, the first surface and the second surface when the first conveying device clamps the battery. The carrying device is used to carry the battery. The second detection device is used to photograph the top surface, the third surface and the fourth surface when the battery is carried on the carrying device. The processor is used to detect the images of the battery photographed by the first detection device and the second detection device to obtain the outer surface detection result of the battery.

[0064] In the above technical solution, when it is necessary to detect the outer surface of the battery, the first conveying device can convey the battery, and the first detection device and the second detection device can automatically align the outer surface of the corresponding battery, so as to realize automatic acquisition of the outer surface image of the battery, and then, the processor generates the outer surface detection result of the battery by identifying each outer surface image. Based on this, manpower can be effectively saved, and the detection result can be determined by the processor, which can improve the detection efficiency and accuracy.

[0065] In addition, by setting up the first detection device and the second detection device, and reasonably dividing the detection range of the first detection device and the second detection device according to the specific form of the battery conveyed by the first conveying device, the connection between multiple processes is strengthened, thereby further improving the detection efficiency.

[0066] The battery detection system provided in the embodiment of the present application is introduced below with reference to the accompanying drawings. Figure 1 A schematic diagram of a top view of a battery detection system provided in some embodiments of the present application is shown. Figure 2 A schematic diagram of a top view of a first detection device and a second detection device of a battery detection system provided in some embodiments of the present application, Figure 3 This is a schematic diagram of the main structure of a first detection device and a second detection device of a battery detection system provided in some embodiments of the present application, Figure 4 This is a schematic diagram of the three-dimensional structure of a first conveying device of a battery detection system provided in some embodiments of the present application. Figure 5 A partial three-dimensional structural diagram of a clamping assembly of a battery detection system provided in some embodiments of the present application, Figure 6This is a schematic diagram of the main structure of a first output component of a battery detection system provided in some embodiments of the present application. Figure 7 A schematic diagram of the three-dimensional structure of a battery provided in some embodiments of the present application.

[0067] refer to Figures 1 to 7 The embodiment of the present application provides a battery detection system for detecting the outer surface of a battery 100. The outer surface of the battery 100 includes a top surface 110 and a bottom surface 120 arranged opposite to each other, and an outer peripheral surface connected between the top surface 110 and the bottom surface 120. The outer peripheral surface includes a first surface 130 and a second surface 140 arranged opposite to each other, and a third surface 150 and a fourth surface 160 arranged opposite to each other. The battery detection system includes a frame 10, a first conveying device 20, a first detection device 30, a carrying device 40, a second detection device 50 and a processor 60.

[0068] The first conveying device 20 is connected to the top of the frame 10 , and is used for clamping the third surface 150 and the fourth surface 160 and conveying the battery 100 .

[0069] The first detection device 30 is used to photograph the bottom surface 120 , the first surface 130 , and the second surface 140 when the first conveying device 20 clamps the battery 100 , so as to obtain a bottom surface image, a first surface image, and a second surface image.

[0070] The carrying device 40 is used to carry the battery 100. The second detection device 50 is used to photograph the top surface 110, the third surface 150 and the fourth surface 160 when the battery 100 is carried on the carrying device 40 to obtain a top surface image, a third surface image and a fourth surface image.

[0071] The processor 60 is used to detect the images of the battery 100 taken by the first detection device 30 and the second detection device 50, that is, the above-mentioned bottom surface image, first surface image, second surface image, top surface image, third surface image and fourth surface image, to obtain the outer surface detection result of the battery 100.

[0072] Exemplarily, the battery 100 in the embodiment of the present application may refer to a battery device, a battery module or a battery cell, etc. The battery 100 is roughly a rectangular parallelepiped. The first surface 130 and the second surface 140 of the battery 100 may be two end surfaces of the battery 100, and the third surface 150 and the fourth surface 160 of the battery 100 may be two side surfaces of the battery 100; the first surface 130 and the second surface 140 of the battery 100 may be two side surfaces of the battery 100, and the third surface 150 and the fourth surface 160 of the battery 100 may be two end surfaces of the battery 100.

[0073] For the convenience of description, the embodiments of the present application are described below by taking the battery 100 as a battery module, the first surface 130 and the second surface 140 of the battery 100 as the two side surfaces of the battery 100, and the third surface 150 and the fourth surface 160 of the battery 100 as the two end surfaces of the battery 100 as an example.

[0074] In the battery detection system, the conveying path of the first conveying device 20 can be pre-configured so that the first conveying device 20 can convey the battery 100 to a suitable position for the first detection device 30 and the second detection device 50 to take pictures.

[0075] The rack 10 is a supporting structure of the battery detection system, and its main function is to provide a stable installation platform and operating space for each device in the battery detection system. The rack 10 is designed to have a sturdy structure and can withstand the operating load of the entire system, while maintaining the smooth operation of the system during the transportation and detection of the battery 100.

[0076] The first conveying device 20 is responsible for conveying the battery 100 from the initial position to the position where the first detection device 30 and the second detection device 50 are located, so as to be photographed by the first detection device 30 and the second detection device 50. The initial position can be understood as the feeding position of the battery detection system, and the battery 100 is conveyed to the feeding position by the transfer device after the previous processing steps of the battery 100 are completed.

[0077] Exemplarily, the first conveying device 20 may be, but is not limited to, a robot, a double-speed chain, or a mobile hoist, etc.

[0078] When the first conveying device 20 conveys the battery 100 to the position where the first detection device 30 is located, the first conveying device 20 clamps the battery 100 so that the first detection device 30 can take a picture of the battery 100. It can be understood that in the process of the battery 100 being clamped by the clamping assembly 21, the first conveying device 20 clamps the third surface 150 and the fourth surface 160 of the battery 100, and because the first conveying device 20 is connected to the top of the rack 10, a part of the first conveying device 20 will be located above the battery 100, so that the first conveying device 20 will block the top surface 110, the third surface 150 and the fourth surface 160 of the battery 100, and therefore, the first detection device 30 is configured to detect the bottom surface 120, the first surface 130 and the second surface 140 of the battery 100 that will not be blocked by the first conveying device 20.

[0079] The first detection device 30 may include one or more cameras. When the first detection device 30 includes one camera, the three surfaces of the bottom surface 120, the first surface 130 and the second surface 140 of the battery 100 are photographed by the one camera; when the first detection device 30 includes multiple cameras, some of the multiple cameras are used to specifically photograph the bottom surface 120 of the battery 100, another part of the cameras are used to specifically photograph the first surface 130 of the battery 100, and another part of the cameras are used to specifically photograph the second surface 140 of the battery 100.

[0080] Optionally, the first detection device 30 may include but is not limited to a line scan camera, an area array camera or a 3D camera.

[0081] The first detection device 30 can be adjusted according to the actual detection accuracy requirements and the surface characteristics of the battery 100. For example, for some batteries 100 that require extremely high surface accuracy, an ultra-high resolution camera can be used to more accurately detect surface defects. For scenes with lower detection accuracy requirements, a low-cost industrial camera can be used to reduce system costs.

[0082] In addition, the first detection device 30 can also integrate different spectral sensors and use multi-spectral imaging technology (including infrared, ultraviolet, X-rays, etc.) to detect invisible defects on the surface of the battery 100, such as poor coating adhesion, internal cracks, etc., thereby improving the depth and breadth of detection.

[0083] When the first conveying device 20 conveys the battery 100 to the position where the second detection device 50 is located, the first conveying device 20 will place the battery 100 on the carrying device 40, and the carrying device 40 carries the battery 100 so that it is within the detection range of the second detection device 50 for the second detection device 50 to take a picture of the battery 100. When the battery 100 is carried on the carrying device 40, the top surface 110, the third surface 150 and the fourth surface 160 of the battery 100 will not be blocked by the first conveying device 20. Therefore, the second detection device 50 cooperates with the carrying device 40 to detect the top surface 110, the third surface 150 and the fourth surface 160 of the battery 100 that have not been detected after being detected by the first detection device 30, thereby completing the detection of the entire outer surface of the battery 100.

[0084] In some examples, a hydraulic or electric drive system is used to allow the support device 40 to fine-tune its position during the inspection process so that the battery 100 is at an optimal inspection angle, while reducing the risk of displacement or shaking of the battery 100 during the inspection process, thereby maintaining the stability and accuracy of image acquisition.

[0085] The second detection device 50 may include one or more cameras. When the second detection device 50 includes one camera, the top surface 110, the third surface 150 and the fourth surface 160 of the battery 100 are photographed by the one camera; when the second detection device 50 includes multiple cameras, some of the multiple cameras are used to specifically photograph the top surface 110 of the battery 100, another part of the cameras are used to specifically photograph the third surface 150 of the battery 100, and another part of the cameras are used to specifically photograph the fourth surface 160 of the battery 100.

[0086] Optionally, the second detection device 50 may include but is not limited to a line scan camera, an area array camera or a 3D camera.

[0087] The second detection device 50 can be adjusted according to the actual detection accuracy requirements and the surface characteristics of the battery 100. For example, for some batteries 100 that require extremely high surface accuracy, an ultra-high resolution camera can be used to more accurately detect surface defects. For scenes with lower detection accuracy requirements, a low-cost industrial camera can be used to reduce system costs.

[0088] In addition, the second detection device 50 can also integrate different spectral sensors and use multi-spectral imaging technology (including infrared, ultraviolet, X-rays, etc.) to detect invisible defects on the surface of the battery 100, such as poor coating adhesion, internal cracks, etc., thereby improving the depth and breadth of detection.

[0089] Exemplarily, in the process of the battery detection system performing appearance inspection on the outer surface of the battery 100, the bottom surface 120, the first surface 130 and the second surface 140 of the battery 100 may be inspected by the first detection device 30 first, and then the top surface 110, the third surface 150 and the fourth surface 160 of the battery 100 may be inspected by the second detection device 50; or the top surface 110, the third surface 150 and the fourth surface 160 of the battery 100 may be inspected by the second detection device 50 first, and then the bottom surface 120, the first surface 130 and the second surface 140 of the battery 100 may be inspected by the first detection device 30.

[0090] The processor 60, as the control and data processing unit of the entire battery detection system, is mainly responsible for analyzing and processing the images collected by the first detection device 30 and the second detection device 50. The processor 60 can quickly identify surface defects in the image through an image processing algorithm and generate an external surface detection result of the battery 100.

[0091] In some examples, the battery detection system may further include a device having a memory storing computer program instructions. The computer program instructions may be a neural network model for recognizing images, or may be instructions for performing logical operations on image data. The processor 60 may include a central processing unit 60, or a specific integrated circuit, or may be configured to implement one or more integrated circuits of the embodiments of the present application. The memory may include a large-capacity memory for information or instructions. The processor 60 reads and executes the computer program instructions stored in the memory, thereby respectively identifying the bottom surface image, the first surface image, the second surface image, the top surface image, the third surface image, and the fourth surface image, and obtaining the outer surface detection result of the battery 100.

[0092] In some examples, the processor 60 can be based on a higher performance hardware platform and advanced software algorithms. For example, the processor 60 can integrate multiple parallel processing units to cope with the detection tasks of multiple devices simultaneously in a large-scale production line, ensuring efficient operation while maintaining high detection accuracy. The image processing algorithm in the processor 60 can be based on a more efficient deep learning model, and continuously optimize the accuracy of defect recognition by automatically learning historical detection data. In addition, the processor 60 can also be seamlessly connected with the production line management system to achieve real-time upload and analysis of detection data.

[0093] In the above technical solution, when it is necessary to detect the outer surface of the battery 100, the first conveying device 20 can convey the battery 100, and the first detection device 30 and the second detection device 50 can automatically align with the outer surface of the corresponding battery 100, so as to realize automatic acquisition of the outer surface image of the battery 100, and then, the processor 60 generates the outer surface detection result of the battery 100 by identifying each outer surface image. Based on this, manpower can be effectively saved, and the detection result is determined by the processor 60, which can improve the detection efficiency and accuracy.

[0094] In addition, by setting up the first detection device 30 and the second detection device 50, and according to the specific form of the battery 100 conveyed by the first conveying device 20, the detection range of the first detection device 30 and the second detection device 50 is reasonably divided, and the connection between multiple processes is strengthened, thereby further improving the detection efficiency.

[0095] In some embodiments, the frame 10 is provided with a first inspection station 11 and a second inspection station 12 arranged along a first direction X, the first inspection device 30 is arranged at the first inspection station 11, the carrying device 40 and the second inspection device 50 are arranged at the second inspection station 12, and the first conveying device 20 is used to convey the battery 100 along the first direction X and the vertical direction Z, and the first direction X intersects with the vertical direction Z.

[0096] The first conveying device 20 is connected to the frame 10 and is used to convey the battery 100 to the first inspection station 11 and the second inspection station 12. The conveying path of the first conveying device 20 can be pre-configured in the battery inspection system, and the first inspection station 11 and the second inspection station 12 are set on the conveying path. The first direction X is the conveying direction of the first conveying device 20.

[0097] The above technical scheme reasonably divides the setting positions of the first detection device 30, the carrying device 40 and the second detection device 50. In the process of the first detection device 30 and the second detection device 50 photographing the outer surface of the battery 100, the risk of interference between the first detection device 30 and the second detection device 50 affecting the shooting accuracy can be reduced, thereby further improving the detection accuracy of the battery detection system.

[0098] In some examples, the first direction is perpendicular to the vertical direction.

[0099] In the embodiment of the present application, the first surface 130 and the second surface 140 of the battery 100 are two side surfaces of the battery 100, and the third surface 150 and the fourth surface 160 of the battery 100 are two end surfaces of the battery 100. Among them, the top surface 110 and the bottom surface 120 can be understood as two surfaces of the battery 100 along its own height direction, the two side surfaces can be understood as two opposite surfaces of the battery 100 along its own width direction, and the two end surfaces can be understood as two opposite surfaces of the battery 100 along its own length direction. The top surface 110, the bottom surface 120 and the two side surfaces all extend along the length direction of the battery 100, so that their length and area are relatively large, and the length and area of ​​the end surface are small.

[0100] In some embodiments, the first detection device 30 includes a second moving component 31, a first shooting component 32, a second shooting component 33 and a third shooting component 34, the first shooting component 32 is used to shoot the bottom surface 120, the second shooting component 33 is used to shoot the first surface 130, and the third shooting component 34 is used to shoot the second surface 140. The first shooting component 32, the second shooting component 33 and the third shooting component 34 are all connected to the second moving component 31, and the second moving component 31 is used to drive the first shooting component 32, the second shooting component 33 and the third shooting component 34 to move along the second direction Y, and the first direction X, the second direction Y and the vertical direction Z are perpendicular to each other.

[0101] Exemplarily, the arrangement positions of the first shooting component 32, the second shooting component 33 and the third shooting component 34 on the second movable component 31 can be set according to the actual application environment, as long as the first shooting component 32 can shoot the bottom surface 120, the second shooting component 33 can shoot the first surface 130, and the third shooting component 34 can shoot the second surface 140.

[0102] In some examples, the second photographing assembly 33 and the third photographing assembly 34 are disposed opposite to each other along the first direction X, and the first photographing assembly 32 is located below the second photographing assembly 33 and the third photographing assembly 34 in the vertical direction Z.

[0103] During the process of the first detection device 30 detecting the battery 100, the second moving component 31 drives the first shooting component 32, the second shooting component 33 and the third shooting component 34 to move along the second direction Y. The first shooting component 32 passes under the battery 100 during the process of moving along the second direction Y, and the first shooting component 32 faces the bottom surface 120 of the battery 100. The second shooting component 33 and the third shooting component 34 pass through one side of the first surface 130 and one side of the second surface 140 of the battery 100 during the process of moving along the second direction Y, and the second shooting component 33 faces the first surface 130, and the third shooting component 34 faces the second surface 140. The first shooting component 32, the second shooting component 33 and the third shooting component 34 shoot the bottom surface 120, the first surface 130 and the second surface 140 respectively during the movement.

[0104] The first photographing component 32 may include one or more cameras, the second photographing component 33 may include one or more cameras, and the third photographing component 34 may include one or more cameras.

[0105] The second moving component 31 includes but is not limited to at least one of an electric slide rail, a servo motor, a telescopic rod structure, a slide rail and slider structure, a screw rod structure, and an electric cylinder structure.

[0106] The above technical solution is provided with a first shooting component 32, a second shooting component 33 and a third shooting component 34, and each of them is respectively corresponding to the bottom surface 120, the first surface 130 and the second surface 140 of the battery 100 for shooting. Compared with the method of using a single shooting component to shoot the bottom surface 120, the first surface 130 and the second surface 140 of the battery 100 one by one, this design can greatly shorten the detection time and improve the detection efficiency. In addition, by providing a second moving component 31 to drive the first shooting component 32, the second shooting component 33 and the third shooting component 34 to move synchronously, not only the integrity of the bottom surface image, the first surface image and the second surface image can be improved, but also the consistency and fluency of the entire detection process can be improved.

[0107] In some embodiments, the bottom surface 120 includes a first portion, a second portion, and a third portion, wherein the first portion is connected between the third surface 150 and the second portion, and the third portion is connected between the fourth surface 160 and the second portion. The first photographing assembly 32 includes a first line scan camera 321 and a first array camera 322, wherein the first line scan camera 321 is used to photograph the entire bottom surface 120, and the first array camera 322 is used to photograph the first portion and the third portion. The second photographing assembly 33 includes a second line scan camera 331, wherein the second line scan camera 331 is used to photograph the entire first surface 130. The third photographing assembly 34 includes a third line scan camera 341, wherein the third line scan camera 341 is used to photograph the entire second surface 140.

[0108] The imaging principle of line scan cameras is line scanning. The photosensitive element of a line scan camera is a single pixel line. By allowing an object to pass continuously on this pixel line, the line scan camera will capture the one-dimensional image data of the object line by line. After accumulating multiple pixel lines, a complete two-dimensional image is finally formed. The imaging speed of line scan cameras is very fast and is suitable for continuous detection in moving conditions. However, line scan cameras have high requirements for lighting conditions. The shooting of line scan cameras requires uniform and stable light sources. Fluctuations or uneven distribution of light may lead to a decrease in image quality.

[0109] Area scan cameras use a two-dimensional photosensitive matrix to capture an image of an area at one time. Unlike line scan cameras, area scan cameras can obtain a complete two-dimensional image of the object being inspected in one shutter action, which is suitable for photographing static or partial objects. Compared with line scan cameras, area scan cameras have slightly lower requirements for light sources, because they only need to ensure sufficient lighting conditions during one exposure, and the entire shooting process is less affected by changes in light when the object moves. However, the field of view of area scan cameras is limited and they cannot cover large areas by moving like line scan cameras.

[0110] It should be noted that the second moving assembly 31 is started during the shooting process of the first line scan camera 321 , the second line scan camera 331 and the third line scan camera 341 ; and the second moving assembly 31 is stopped during the shooting process of the first area array camera 322 .

[0111] The second line scan camera 331 and the third line scan camera 341 can be provided to photograph the first surface 130 and the second surface 140 having a relatively large length, and can improve the integrity of the first surface image and the second surface image.

[0112] The second part can be understood as the middle area of ​​the bottom surface 120, the first part can be understood as the edge area of ​​the bottom surface 120 close to the third surface 150, and the third part can be understood as the edge area of ​​the bottom surface 120 close to the fourth surface 160. It should be noted that the edge area of ​​the bottom surface 120 of the battery 100 is often more complex in structure and has lower light uniformity. In addition, since the clamping assembly 21 is clamped on the third surface 150 and the fourth surface 160, the first part and the third part can also be understood as the edge area of ​​the bottom surface 120 close to the clamping assembly 21, so that the first part and the third part will be affected to a certain extent by the clamping assembly 21 when being photographed. For example, the clamping assembly 21 is prone to cause certain obstruction of light.

[0113] In this way, the first line scan camera 321 is provided to shoot the bottom surface 120 with a relatively large length, and the integrity of the bottom surface image can be improved. In addition, in the first shooting component 32, in addition to the first line scan camera 321, a first area array camera 322 is also provided, which is mainly used to shoot the first part and the third part of the bottom surface 120, two key areas. The first area array camera 322 has the advantage of quickly capturing large-area images, and can shoot the second part and the third part with high precision in a short time, which can make up for the limitations of the first line scan camera in capturing edge details, and improve the shooting quality of the entire bottom surface 120.

[0114] The above technical solution adopts a line scan camera, a combination of a line scan camera and an area array camera respectively according to the different structural characteristics of the bottom surface 120, the first surface 130 and the second surface 140 of the battery 100, which can improve the integrity and clarity of the bottom surface image, the first surface image and the second surface image, thereby helping to further improve the overall detection accuracy.

[0115] In some embodiments, the first line scan camera 321 , the second line scan camera 331 , the third line scan camera 341 , and the first area array camera 322 are all equipped with a light source.

[0116] In some embodiments, there are multiple first area array cameras 322, and the light source matched with the first area array cameras 322 includes multiple through holes. The multiple first area array cameras 322 are arranged on the back of the light source and correspond to the multiple through holes one by one.

[0117] In some embodiments, the second detection device 50 includes a third moving component 51, a fourth shooting component 52, a fifth shooting component 53 and a sixth shooting component 54, wherein the fourth shooting component 52 is used to shoot the top surface 110, the fifth shooting component 53 is used to shoot the third surface 150, and the sixth shooting component 54 is used to shoot the fourth surface 160. The fourth shooting component 52 is connected to the third moving component 51, and the third moving component 51 is used to drive the fourth shooting component 52 to move along the second direction Y. The fifth shooting component 53 and the sixth shooting component 54 are relatively and fixedly arranged along the second direction Y, and the first direction X, the second direction Y and the vertical direction Z are perpendicular to each other. The carrying device 40 is located between the fifth shooting component 53 and the sixth shooting component 54 in the second direction Y.

[0118] Exemplarily, the location of the fourth photographing component 52 on the third moving component 51 can be set according to the actual application environment, as long as the fourth photographing component 52 can photograph the top surface 110 .

[0119] When the second detection device 50 detects the battery 100, the third moving component 51 drives the fourth shooting component 52 to move along the second direction Y over the battery 100, and the fourth shooting component 52 faces the top surface 110 of the battery 100. The fourth shooting component 52 shoots the top surface 110 during the movement. The fifth shooting component 53 and the sixth shooting component 54 are in a fixed static state and shoot the third surface 150 and the fourth surface 160 of the battery 100 respectively.

[0120] The fourth photographing component 52 may include one or more cameras, the fifth photographing component 53 may include one or more cameras, and the sixth photographing component 54 may include one or more cameras.

[0121] The third moving component 51 includes but is not limited to at least one of an electric slide rail, a servo motor, a telescopic rod structure, a slide rail and slider structure, a screw rod structure, and an electric cylinder structure.

[0122] The above technical solution sets up a fourth shooting component 52, a fifth shooting component 53 and a sixth shooting component 54 and respectively shoots the top surface 110, the third surface 150 and the fourth surface 160 of the battery 100. Compared with the method of using a single shooting component to shoot the top surface 110, the third surface 150 and the fourth surface 160 of the battery 100 one by one, this design can greatly shorten the detection time and improve the detection efficiency.

[0123] In addition, the length and area of ​​the top surface 110 are relatively large, and by setting the third moving component 51 to drive the fourth shooting component 52 to move, the integrity of the top surface image can be improved, thereby improving the detection accuracy. The length and area of ​​the third surface 150 and the fourth surface 160 are relatively small. When the fifth shooting component 53 and the sixth shooting component 54 do not move and can also completely capture the third surface image and the fourth surface image, the fifth shooting component 53 and the sixth shooting component 54 are relatively and fixedly arranged along the second direction Y, which can reduce the overall structural complexity of the second detection device 50.

[0124] In some embodiments, the top surface 110 includes a fourth portion, a fifth portion, and a sixth portion, wherein the fourth portion is connected between the third surface 150 and the fifth portion, and the sixth portion is connected between the fourth surface 160 and the fifth portion. The fourth photographing assembly 52 includes a fourth line scan camera 521 and a second array camera 522, wherein the fourth line scan camera 521 is used to photograph the entire top surface 110, and the second array camera 522 is used to photograph the fourth portion and the sixth portion. The fifth photographing assembly 53 includes a third array camera 531, wherein the third array camera 531 is used to photograph the entire third surface 150. The sixth photographing assembly 54 includes a fourth array camera 541, wherein the fourth array camera 541 is used to photograph the entire fourth surface 160.

[0125] Exemplarily, the length and area of ​​the third surface 150 and the fourth surface 160 are relatively small, and the third area array camera 531 and the fourth area array camera 541 are fixedly arranged to photograph the third surface 150 and the fourth surface 160 respectively, which can reduce the overall structural complexity of the second detection device 50 while maintaining the integrity of the third surface image and the fourth surface image.

[0126] The fifth portion can be understood as the middle area of ​​the top surface 110, the fourth portion can be understood as the edge area of ​​the top surface 110 close to the third surface 150, and the sixth portion can be understood as the edge area of ​​the top surface 110 close to the fourth surface 160. It should be noted that the edge area of ​​the top surface 110 of the battery 100 often has a more complex structure and lower light uniformity.

[0127] In this way, the fourth line scan camera 521 is provided to shoot the top surface 110 having a relatively large length, and the integrity of the bottom surface image can be improved. In addition to the fourth line scan camera 521, the fourth shooting component 52 is also provided with a second area array camera 522, which is mainly used to shoot the fourth part and the sixth part of the top surface 110, two key areas. The second area array camera 522 has the advantage of quickly capturing large-area images, and can shoot the fourth part and the sixth part with high precision in a short time, which can make up for the limitations of the fourth line scan camera in capturing edge details, and improve the shooting quality of the entire bottom surface 120.

[0128] The above technical solution adopts a combination of area array cameras, line scan cameras and area array cameras respectively according to the different structural characteristics of the top surface 110, the third surface 150 and the fourth surface 160 of the battery 100, which can improve the integrity and clarity of the top surface image, the third surface image and the fourth surface image, thereby helping to further improve the overall detection accuracy.

[0129] In some embodiments, the fourth line scan camera 521 , the second area array camera 522 , the third area array camera 531 , and the fourth area array camera 541 are all equipped with a light source.

[0130] In some embodiments, there are multiple second area array cameras 522, and the light source matched with the second area array cameras 522 includes multiple through holes. The multiple second area array cameras 522 are arranged on the back of the light source and correspond to the multiple through holes one by one.

[0131] In some embodiments, there are multiple third area array cameras 531, and the light source matched with the third area array cameras 531 includes multiple through holes. The multiple third area array cameras 531 are arranged on the back of the light source and correspond to the multiple through holes one by one.

[0132] In some embodiments, there are multiple fourth area array cameras 541, and the light source matched with the fourth area array cameras 541 includes multiple through holes. The multiple fourth area array cameras 541 are arranged on the back of the light source and correspond to the multiple through holes one by one.

[0133] In some embodiments, the first conveying device 20 includes a clamping assembly 21 and a first moving assembly 22, the clamping assembly 21 is connected to the first moving assembly 22 and is used to clamp the third surface 150 and the fourth surface 160, and the first moving assembly 22 is used to drive the clamping assembly 21 to move along the first direction X and along the vertical direction Z. The first moving assembly 22 is disposed above the clamping assembly 21, in other words, at least a portion of the first moving assembly 22 is located between the top of the clamping assembly 21 and the top of the frame 10.

[0134] The clamping assembly 21 fixes the battery 100 on the conveying device by clamping the third surface 150 and the fourth surface 160 of the battery 100, so that the battery 100 does not move or tilt during the conveying process. The clamping assembly 21 can adapt to batteries 100 of different specifications and can maintain the reliability of the battery 100 during the conveying process by flexibly adjusting the clamping force.

[0135] The first moving assembly 22 is used to drive the clamping assembly 21 to move along the horizontal first direction X, and can adjust the height of the clamping assembly 21 along the vertical direction Z to adapt to different position requirements. The first moving assembly 22 includes but is not limited to at least one of an electric slide rail, a servo motor, a telescopic rod structure, a slide rail slider structure, a screw rod structure, and an electric cylinder structure.

[0136] In some examples, the first moving assembly 22 may also include a multi-axis robotic arm, which can add rotation and tilt functions so that the battery 100 can be flexibly transported and positioned under complex inspection conditions.

[0137] The above technical solution facilitates modular setting of the first conveying device 20 according to different functions, which can reduce the difficulty of designing and maintaining the first conveying device 20 and reduce the cost of use.

[0138] In some embodiments, the clamping assembly 21 includes a first clamping jaw 211 and a second clamping jaw 212 that are arranged opposite to each other along the second direction Y. The first clamping jaw 211 and the second clamping jaw 212 are configured to move toward or away from each other along the second direction Y. The first direction X, the second direction Y, and the vertical direction Z are perpendicular to each other. The first clamping jaw 211 is used to abut against the third surface 150, and the second clamping jaw 212 is used to abut against the fourth surface 160.

[0139] Exemplarily, the first clamping jaw 211 and the second clamping jaw 212 can be controlled by a driving mechanism to move closer to or farther from each other along the second direction Y. Specifically, when the clamping assembly 21 needs to clamp the battery 100, the first clamping jaw 211 and the second clamping jaw 212 move closer to each other along the second direction Y until the first clamping jaw 211 abuts against the third surface 150 and the second clamping jaw 212 abuts against the fourth surface 160, so that the battery 100 is firmly clamped. When the battery 100 needs to be released, the first clamping jaw 211 and the second clamping jaw 212 move away from each other along the second direction Y, thereby completing the release of the battery 100.

[0140] The materials and shapes of the first clamping jaw 211 and the second clamping jaw 212 can be replaced according to different types of batteries 100. For example, for batteries 100 with fragile surfaces, the first clamping jaw 211 and the second clamping jaw 212 can be made of a more flexible material to reduce the risk of scratching or damaging the surface of the battery 100 during the clamping process. In addition, for larger or heavier batteries 100, the bearing capacity of the clamping jaws can be increased, and a multi-point clamping design can be adopted.

[0141] The driving mechanism can also be selected according to different needs. In some examples, the first clamping jaw 211 and the second clamping jaw 212 can be controlled to move by electric drive. In other examples, pneumatic drive or hydraulic drive can be used to increase the clamping force between the first clamping jaw 211 and the second clamping jaw 212.

[0142] The above technical solution can adapt to batteries 100 of different sizes and shapes. By adjusting the distance and clamping force between the first clamp 211 and the second clamp 212, the clamping assembly 21 can be fully in contact with the surface of the battery 100, thereby improving the stability of the battery 100 during transportation.

[0143] In some embodiments, the first clamping jaw 211 includes a first clamping portion 2111 and a first supporting portion 2112, the first supporting portion 2112 is disposed below the first clamping portion 2111 along the vertical direction Z, and the first supporting portion 2112 is configured to be movable along the second direction Y. The second clamping jaw 212 includes a second clamping portion 2121 and a second supporting portion 2122, the second supporting portion 2122 is disposed below the second clamping portion 2121 along the vertical direction Z, and the second supporting portion 2122 is configured to be movable along the second direction Y. The first clamping portion 2111 is used to abut against the third surface 150, the first supporting portion 2112 is used to abut against the bottom surface 120, the second clamping portion 2121 is used to abut against the fourth surface 160, and the second supporting portion 2122 is used to abut against the bottom surface 120.

[0144] The first clamping portion 2111 abuts against the third surface 150 of the battery 100 to provide a lateral clamping force, and the second clamping portion 2121 abuts against the fourth surface 160 of the battery 100 to provide a lateral clamping force. The first support portion 2112 is disposed below the first clamping portion 2111 and the second support portion 2122 is disposed below the second clamping portion 2121 to provide additional support for the bottom surface 120, so as to reduce the risk of the battery 100 sinking or tilting due to gravity during the clamping process.

[0145] Exemplarily, the first clamping portion 2111 and the second clamping portion 2121 can be controlled by a driving mechanism to be able to move closer to or away from each other along the second direction Y; the first support portion 2112 and the second support portion 2122 can be controlled by a driving mechanism to be able to move closer to or away from each other along the second direction Y.

[0146] Specifically, when the clamping assembly 21 needs to clamp the battery 100, the first clamping portion 2111 and the second clamping portion 2121 move closer to each other along the second direction Y until the first clamping portion 2111 abuts against the third surface 150, and the second clamping portion 2121 abuts against the fourth surface 160, so that the battery 100 is firmly clamped; at the same time, the first support portion 2112 and the second support portion 2122 move closer to each other along the second direction Y until the first support portion 2112 and the second support portion 2122 abut against the bottom surface 120, thereby forming support for the battery 100 along the vertical direction Z.

[0147] When the battery 100 needs to be released, the first supporting portion 2112 and the second supporting portion 2122 move away from each other along the second direction Y to cancel the support for the battery 100, and the first clamping portion 2111 and the second clamping portion 2121 move away from each other along the second direction Y to complete the release of the battery 100.

[0148] In some examples, before the first detection device 30 photographs the bottom surface 120, the first surface 130, and the second surface 140 of the battery 100, the first support portion 2112 and the second support portion 2122 first move away from each other along the second direction Y to cancel the support for the battery 100, thereby eliminating the obstruction of the bottom surface 120 by the first support portion 2112 and the second support portion 2122.

[0149] The above technical solution further introduces the first support portion 2112 and the second support portion 2122 to provide additional support for the bottom surface 120 of the battery 100, thereby reducing the risk of the battery 100 sinking or tilting due to gravity during the clamping process, and can further improve the stability of the battery 100 during transportation.

[0150] In some embodiments, the first conveying device 20 also includes a self-locking component 23, which is connected between the clamping component 21 and the first moving component 22. The self-locking component 23 is used to brake the clamping component 21 when the clamping component 21 moves along the first direction X to reach a first preset state and / or moves along the vertical direction Z to reach a second preset state.

[0151] Exemplarily, the function of the self-locking component 23 is to automatically brake the clamping component 21 when it moves along the first direction X to reach the first preset state and / or moves along the vertical direction Z to reach the second preset state, so as to reduce the risk caused by an unexpected failure of the first conveying device 20. For example, when the operator is inspecting the first conveying device 20, the clamping component 21 accidentally falls off or moves, causing injury to the operator; or, in the process of conveying the battery 100, the clamping component 21 accidentally falls off and smashes other devices in the battery detection system.

[0152] The first preset state may be an instantaneous speed threshold of the clamping assembly 21 moving along the first direction X, a distance threshold of the clamping assembly 21 moving along the first direction X, an acceleration threshold of the clamping assembly 21 moving along the first direction X, etc., and may be set according to the actual application environment.

[0153] The second preset state can be the instantaneous speed threshold of the clamping component 21 moving along the vertical direction Z, the distance threshold of the clamping component 21 moving along the vertical direction Z, the acceleration threshold of the clamping component 21 moving along the vertical direction Z, etc., which can be set according to the actual application environment.

[0154] In some examples, the self-locking assembly 23 can achieve the braking of the clamping assembly 21 through a mechanical locking structure. For example, the friction force generated by the wedge structure at a specific position can be used to achieve self-locking wedge self-locking, or the one-way motion self-locking ratchet self-locking can be achieved through the cooperation of the pawl and the gear.

[0155] In some examples, the self-locking assembly 23 can realize the brake clamping assembly 21 through a hydraulic self-locking structure. Specifically, the locking is controlled by the pressure generated by the hydraulic cylinder. After reaching the specified position, the hydraulic system maintains pressure to keep the hydraulic oil in the cylinder body to keep the position of the component stable.

[0156] In some examples, the self-locking component 23 can realize the brake clamping component 21 through an electromagnetic self-locking structure. For example, electromagnetic brake self-locking and electromagnetic latch self-locking. Electromagnetic brake self-locking uses the magnetic force generated by the electromagnet to lock. When the current passes through the electromagnet, a strong magnetic force is generated to attract the locking block to a fixed position, making the component unable to move; when the current is disconnected, the magnetic force disappears and the locking state is released. The electromagnetic latch in the electromagnetic latch self-locking uses electromagnetic force to push out or suck back the pin to achieve locking or unlocking of the mechanical component.

[0157] The above technical solution can reduce the risk caused by unexpected failure of the first conveying device 20 by introducing the self-locking component 23, and improve the overall reliability of the battery detection system.

[0158] In some embodiments, the battery detection system further includes a discharge device 70 and a second conveying device 80, the second detection device 50 is disposed downstream of the first detection device 30, and the discharge device 70 is disposed downstream of the second detection device 50. The second conveying device 80 is used to convey the battery 100 to the discharge device 70 after the processor 60 obtains the outer surface detection result, and the discharge device 70 is used to discharge the battery 100.

[0159] After the battery 100 is inspected, the second conveying device 80 can automatically transfer the battery 100 to the discharging device 70 , thereby realizing the fully automated connection of the battery inspection system from feeding to inspection and then to discharging, so as to further improve the inspection efficiency of the appearance inspection of the battery 100 .

[0160] Exemplarily, the discharging device 70 can be a conveyor belt mechanism, a double-speed chain mechanism, or a transport vehicle, etc., which can be selected according to the actual application environment.

[0161] The second conveying device 80 may have the same structure as the first conveying device 20 . The above contents about the first conveying device 20 are applicable to the second conveying device 80 , and the specific structure of the second conveying device 80 will not be described in detail herein.

[0162] In some embodiments, the discharging device 70 includes a first output assembly 71 and a second output assembly 72, the first output assembly 71 is arranged along a first direction X, the second output assembly 72 is arranged along a second direction Y, the first direction X intersects with the second direction Y, and the first direction X and the second direction Y are both perpendicular to the vertical direction Z. The first output assembly 71 is used to discharge the batteries 100 whose outer surface inspection results are qualified, and the second output assembly 72 is used to discharge the batteries 100 whose outer surface inspection results are unqualified.

[0163] Exemplarily, the first output assembly 71 and the second output assembly 72 may be, but are not limited to, a conveyor belt mechanism, a double-speed chain mechanism, or a transport vehicle, etc. As an example, the first output assembly 71 and the second output assembly 72 are both double-speed chain mechanisms.

[0164] The above technical solution can discharge qualified batteries and unqualified batteries respectively according to the outer surface inspection results of the battery 100, without the need for subsequent manual sorting, which can further save manpower and improve overall production efficiency.

[0165] In some embodiments, the second conveying device 80 can rotate around the vertical axis to drive the battery 100 to rotate, and then convey the battery 100 with qualified or unqualified outer surface detection results to the corresponding first output component 71 or second output component 72 respectively.

[0166] In some embodiments, the first direction X is perpendicular to the second direction Y.

[0167] In some embodiments, the discharging device 70 further includes a steering assembly 73, which is connected between the inlet end of the first output assembly 71 and the inlet end of the second output assembly 72, and the steering assembly 73 is configured to be able to rotate around a vertical axis. The second conveying device 80 is also used to convey the battery 100 to the steering assembly 73 after the processor 60 obtains the outer surface detection result, and the steering assembly 73 is used to convey the battery 100 with a qualified outer surface detection result to the first output assembly 71, and convey the battery 100 with an unqualified outer surface detection result to the second output assembly 72.

[0168] The steering assembly 73 is used to transport the batteries 100 with qualified or unqualified outer surface detection results to the corresponding first output assembly 71 or second output assembly 72. The steering assembly 73 can rotate around the vertical axis to switch the discharge path between the inlet ends of the first output assembly 71 and the second output assembly 72.

[0169] Exemplarily, the rotation of the steering assembly 73 can be controlled by the processor 60, or a controller can be built into the steering assembly 73 to control the rotation of the steering assembly 73. After the outer surface of the battery 100 is detected, the outer surface detection result is received, and the direction is automatically adjusted according to the detection result. When the outer surface detection result of the battery 100 is qualified, the steering assembly 73 rotates around the vertical axis to guide the battery 100 to the inlet end of the first output assembly 71, so that the qualified battery 100 is discharged through the first output assembly 71; when the outer surface detection result of the battery 100 is unqualified, the steering assembly 73 turns to the inlet end of the second output assembly 72, so that the unqualified battery 100 is discharged through the first output assembly 71.

[0170] In some examples, the steering assembly 73 includes a turntable and a drive motor, the drive motor is connected to the turntable and is used to drive the turntable to rotate around a vertical axis, and a conveying mechanism is provided on the turntable, and the conveying mechanism is used to convey the battery 100 to the first output assembly 71 or the second output assembly 72.

[0171] The above technical solution introduces a steering component 73 to divert the batteries 100 that have completed the inspection, and guides the qualified batteries 100 and the unqualified batteries 100 to the first output component 71 and the second output component 72 respectively, which helps to further strengthen the connectivity between different processes in the battery inspection system, thereby further improving the inspection efficiency.

[0172] In some embodiments, the first output component 71 includes a first transfer component 711, a second transfer component 712, a first transmission layer 713 and a second transmission layer 714, the first transmission layer 713 and the second transmission layer 714 both extend along the first direction X, the first transmission layer 713 and the second transmission layer 714 are spaced apart along the vertical direction Z and are both connected between the first transfer component 711 and the second transfer component 712.

[0173] A tray is disposed on at least one of the first transport layer 713 and the second transport layer 714 . The tray is used to carry the battery 100 . The first transport layer 713 and the second transport layer 714 are respectively used to transport the tray along the first direction X, and the transport directions of the first transport layer 713 and the second transport layer 714 are opposite.

[0174] The first transfer assembly 711 is used to transfer the pallet located on the first transfer layer 713 to the second transfer layer 714 , and the second transfer assembly 712 is used to transfer the pallet located on the second transfer layer 714 to the first transfer layer 713 .

[0175] The first transmission layer 713 and the second transmission layer 714 both extend along the first direction X and are spaced apart from each other in the vertical direction Z. The first transmission layer 713 and the second transmission layer 714 form a double-layer conveying system for reciprocating transmission of pallets. The first transmission layer 713 is used to convey the pallet carrying the battery 100 along the first direction X, and is usually used to transfer the pallet from the starting point to the end point. The second transmission layer 714 is opposite to the direction of the first transmission layer 713, and is usually used to return the pallet from the end point to the starting point. Through this opposite conveying direction, the pallet can be circulated between the two layers, which improves space utilization and conveying efficiency.

[0176] The tray is used to carry the battery 100 and can realize stable transportation on the first transmission layer 713 and the second transmission layer 714, so that the battery 100 can remain stable during the transportation process. The tray can be set on any layer of the first transmission layer 713 and the second transmission layer 714. When it needs to be transferred to another layer, it is switched through the first transfer component 711 or the second transfer component 712, so as to realize the cyclic transmission of the tray in the double-layer structure.

[0177] The first transfer assembly 711 is located at the connection between the first transfer layer 713 and the second transfer layer 714, and its main function is to transfer the pallet on the first transfer layer 713 to the second transfer layer 714. The first transfer assembly 711 includes a lifting or lowering mechanism, which can lift or lower the pallet from the first transfer layer 713 to the starting position of the second transfer layer 714 after the pallet reaches the end point, so that the pallet can smoothly enter the transfer process of the second transfer layer 714.

[0178] The second transfer assembly 712 is located at the connection between the second transfer layer 714 and the first transfer layer 713, and is mainly used to transfer the pallet located on the second transfer layer 714 to the first transfer layer 713. The second transfer assembly 712 includes a lifting or lowering mechanism, which can lift or lower the pallet from the second transfer layer 714 to the starting position of the first transfer layer 713 after the pallet reaches the end point, so that the pallet can smoothly enter the transfer process of the first transfer layer 713.

[0179] The cooperation between the first transmission layer 713 and the second transmission layer 714 of the above technical solution realizes the circular transmission of the pallet in the double-layer structure through the first transfer component 711 and the second transfer component 712, so that the first output component 71 can achieve efficient transmission operation in a limited space, thereby improving space utilization and transportation efficiency.

[0180] In some examples, a plurality of trays are arranged in the first output assembly 71, and the plurality of trays are arranged at intervals along the direction of double-layer circulation transmission, that is, when some of the plurality of trays are located at the first transmission layer 713, the other part of the trays are located at the second transmission layer 714, which can reduce the waiting time during the transmission process, thereby further improving the transmission efficiency. The number of trays can be, but is not limited to, two, three, four, five or six, etc.

[0181] In some embodiments, the second output component 72 includes a third transfer component, a fourth transfer component, a third transmission layer and a fourth transmission layer, the third transmission layer and the fourth transmission layer both extend along the second direction Y, the third transmission layer and the fourth transmission layer are spaced apart along the vertical direction Z and are both connected between the third transfer component and the fourth transfer component.

[0182] A tray is disposed on at least one of the third and fourth transport layers. The tray is used to carry the battery 100. The third and fourth transport layers are respectively used to transport the tray along the second direction Y, and the transport directions of the third and fourth transport layers are opposite.

[0183] The third transfer assembly is used to transfer the pallet located on the third transmission layer to the fourth transmission layer, and the fourth transfer assembly is used to transfer the pallet located on the fourth transmission layer to the third transmission layer.

[0184] The third transmission layer and the fourth transmission layer both extend in the second direction Y and are spaced apart from each other in the vertical direction Z. The third transmission layer and the fourth transmission layer form a double-layer conveying system for reciprocating transmission of pallets. The third transmission layer is used to convey the pallet carrying the battery 100 in the second direction Y, and is usually used to transfer the pallet from the starting point to the end point. The fourth transmission layer is in the opposite direction to the third transmission layer, and is usually used to return the pallet from the end point to the starting point. Through this opposite conveying direction, the pallet can be circulated between the two layers, thereby improving space utilization and conveying efficiency.

[0185] The tray is used to carry the battery 100 and can be stably transported on the third and fourth transport layers, so that the battery 100 can remain stable during the transport process. The tray can be set on any of the third and fourth transport layers, and when it needs to be transferred to another layer, it is switched through the third transfer component or the fourth transfer component, thereby realizing the cyclic transmission of the tray in the double-layer structure.

[0186] The third transfer assembly is located at the connection between the third and fourth transfer layers, and its main function is to transfer the pallet on the third transfer layer to the fourth transfer layer. The third transfer assembly includes a lifting or lowering mechanism, which can lift or lower the pallet from the third transfer layer to the starting position of the fourth transfer layer after the pallet reaches the end point, so that the pallet can smoothly enter the transfer process of the fourth transfer layer.

[0187] The fourth transfer assembly is located at the connection between the fourth transfer layer and the third transfer layer, and is mainly used to transfer the pallet located on the fourth transfer layer to the third transfer layer. The fourth transfer assembly includes a lifting or lowering mechanism, which can lift or lower the pallet from the fourth transfer layer to the starting position of the third transfer layer after the pallet reaches the end point, so that the pallet can smoothly enter the transfer process of the third transfer layer.

[0188] The third transmission layer and the fourth transmission layer of the above technical solution realize the circular transmission of the pallet in the double-layer structure through the cooperation of the third transfer component and the fourth transfer component, so that the second output component 72 can realize efficient transmission operation in a limited space, thereby improving space utilization and transportation efficiency.

[0189] In some examples, the second output assembly 72 is provided with a plurality of trays, and the plurality of trays are arranged at intervals along the direction of the double-layer circulation transmission, that is, when some of the plurality of trays are located at the third transmission layer, the other part of the trays are located at the fourth transmission layer, which can reduce the waiting time during the transmission process, thereby further improving the transmission efficiency. The number of trays can be, but is not limited to, two, three, four, five or six, etc.

[0190] In some embodiments, the first detection device 30 , the second detection device 50 , and the discharging device 70 are arranged along the first direction X, and the carrying device 40 is configured to be able to reciprocate along the first direction X.

[0191] After the second detection device 50 completes the detection of the battery 100, the carrying device 40 drives the battery 100 to move along the first direction X close to the discharge device 70. After the carrying device 40 approaches the discharge device 70, the second conveying device 80 conveys the battery 100 on the carrying device 40 to the discharge device 70.

[0192] The above technical solution can reduce the conveying distance of the second conveying device 80, thereby reducing the time that the battery 100 is suspended in the air to a certain extent, thereby reducing the risk of the battery 100 falling.

[0193] Figure 8 A schematic diagram of the three-dimensional structure of a profiling block provided in some embodiments of the present application.

[0194] Continue to refer Figure 8In some embodiments, the first conveying device 20 is further used to clamp and convey the profiling block 200, the profiling block 200 matches the structure of the battery 100, and the profiling block 200 includes a profiling bottom surface 220 corresponding to the bottom surface 120, a profiling top surface 210 corresponding to the top surface 110, a profiling first surface 230 corresponding to the first surface 130, a profiling second surface 240 corresponding to the second surface 140, a profiling third surface 250 corresponding to the third surface 150, and a profiling fourth surface 260 corresponding to the fourth surface 160. The first conveying device 20 is used to clamp the profiling third surface 250 and the profiling fourth surface 260.

[0195] The contoured bottom surface 220 , the contoured top surface 210 , the contoured first surface 230 , the contoured second surface 240 , the contoured third surface 250 and the contoured fourth surface 260 are all provided with a first calibration piece 270 .

[0196] The first detection device 30 is further used to photograph the profiling bottom surface 220 , the profiling first surface 230 and the profiling second surface 240 when the first conveying device 20 clamps the profiling block 200 , so as to obtain a profiling bottom surface image, a profiling first surface image and a profiling second surface image.

[0197] The second detection device 50 is also used to photograph the profiling top surface 210 , the profiling third surface 250 and the profiling fourth surface 260 when the profiling block 200 is carried on the carrying device 40 , so as to obtain the profiling top surface image, the profiling third surface image and the profiling fourth surface image.

[0198] The processor 60 is also used to detect the outer surface images of the profiling block taken by the first detection device 30 and the second detection device 50, that is, the profiling bottom surface image, the profiling first surface image, the profiling second surface image, the profiling top surface image, the profiling third surface image and the profiling fourth surface image, and generate the spot inspection results of the first detection device 30 and the spot inspection results of the second detection device 50.

[0199] Exemplarily, the shaped block 200 can be a product made by imitating a real battery, and the shape of the shaped block 200 is consistent with the shape of the real battery, and the size of the shaped block 200 is consistent with the size of the real battery. For example, the real battery is roughly a rectangular parallelepiped, and the shaped block 200 is also roughly a rectangular parallelepiped.

[0200] The outer dimensions of the profiling block 200 can be designed according to the dimensions of the blueprint battery drawing. On each profiling surface of the profiling block 200, the installation space is designed according to the dimensions of the first calibration piece 270. For example, after each first calibration piece 270 is installed in the installation space of the profiling surface, a 2-3mm space redundancy can be reserved for the calibration piece in the installation space to facilitate the replacement of the first calibration piece 270.

[0201] The first conveying device 20 can convey the profiling block 200 to the first inspection station 11 and the second inspection station 12 respectively, so that the first inspection device 30 and the second inspection device 50 can photograph the profiling block 200 .

[0202] The first calibration piece 270 is used to provide a standardized calibration mark. For example, the first calibration piece 270 can be designed as a mark point, stripe or QR code, with a clear boundary and a known standard size, so as to facilitate the first detection device 30 and the second detection device 50 to identify and perform position calibration. By accurately shooting and analyzing the image of the first calibration piece 270, the processor 60 can identify the imaging error of the first detection device 30 and the second detection device 50, thereby achieving accurate calibration of the system.

[0203] After acquiring the contoured bottom surface image, the contoured first surface image, the contoured second surface image, the contoured top surface image, the contoured third surface image and the contoured fourth surface image, the processor 60 can identify whether each image includes the first calibration piece 270, the position of the first calibration piece 270 and the identification features on the first calibration piece 270, etc., so as to determine whether the first detection device 30 and the second detection device 50 need to be calibrated, and whether the parameters of each camera in the first detection device 30 and the second detection device 50 need to be adjusted, etc.

[0204] According to the above technical solution, the first calibration piece 270 used for spot checking the first detection device 30 and the second detection device 50 is integrated on the surface of the profiling block 200 which is consistent with the shape and size of the real battery 100. On the one hand, it is convenient to keep each first calibration piece 270. On the other hand, it can automatically simulate the detection process of the battery 100, save labor costs, and make the spot check result more referenceable. Moreover, since the spot check of the first detection device 30 and the second detection device 50 can be performed during the operation of the battery detection system, the time loss caused by the downtime of the battery detection system can be effectively reduced.

[0205] In some embodiments, the contoured bottom surface 220, the contoured top surface 210, the contoured first surface 230, the contoured second surface 240, the contoured third surface 250, and the contoured fourth surface 260 are all provided with a plurality of first calibration pieces 270. At least two of the plurality of first calibration pieces 270 located on the same contoured surface are staggered in a direction perpendicular to the contoured surface.

[0206] Among the multiple first calibration parts 270 located on the same profiling surface, there may be two first calibration parts 270 staggered along the direction perpendicular to the profiling surface, or there may be three first calibration parts 270 staggered along the direction perpendicular to the profiling surface, which can be selected according to the actual application environment.

[0207] A plurality of first calibration pieces 270 are arranged on each profiling surface so as to have sufficient reference points for calibration of the first detection device 30 and the second detection device 50. The plurality of first calibration pieces 270 located on the same profiling surface are not simply arranged on the same plane in space, but are staggered in a direction perpendicular to the profiling surface, which can provide reference points at different depths, thereby helping to improve the calibration accuracy of the depth of field shooting parameters of the first detection device 30 and the second detection device 50.

[0208] In some embodiments, the first calibration component 270 includes a graphic feature component and a grayscale feature component. The graphic feature component is used to calibrate the graphic shooting parameters of the first detection device 30 and the second detection device 50, and the grayscale feature component is used to calibrate the grayscale shooting parameters of the first detection device 30 and the second detection device 50.

[0209] For example, the graphic features can be designed as standard geometric patterns, such as circles, rectangles, crosshairs, or grid lines, etc. These geometric patterns have clear edges and known dimensions, and can provide accurate image calibration references.

[0210] The cameras in the first detection device 30 and the second detection device 50 capture images of the graphic feature, and then compare the shape of the imaged graphic in the image with the preset standard shape through the processor 60, so as to calibrate the relevant imaging parameters of the camera. If the imaged shape is deformed or distorted, the processor 60 will identify the distortion problem of the camera and prompt the operator to adjust the shooting parameters of the camera.

[0211] The graphic feature can help calibrate the camera's shooting position and focus accuracy through the precise position of the marker point. The processor 60 can determine whether the camera's focus state is correct by measuring the edge clarity of the imaged graphic in the image and the relative position of the marker point.

[0212] Grayscale features are designed as patterns consisting of different gray levels, usually gradient gray blocks or multi-level gray bars from black to white. Grayscale features are used to calibrate the camera's responsiveness at different gray levels.

[0213] After the cameras in the first detection device 30 and the second detection device 50 capture the grayscale feature, the processor 60 compares the brightness value of each grayscale level in the captured image with a preset standard to determine whether the camera can correctly distinguish subtle grayscale changes.

[0214] The grayscale features can calibrate the overall brightness and contrast of the image by providing a gradient pattern from dark to light, so that the light and dark details on the surface of the battery 100 can be accurately captured.

[0215] In some examples, the graphic feature and the grayscale feature are integrated. Specifically, a plurality of rectangular graphics are arranged on the first calibration piece 270, each of which has a different size and each of which is filled with a color of a different grayscale.

[0216] The above technical solution introduces graphic features and grayscale features to perform spot checks on multiple shooting parameters of the first detection device 30 and the second detection device 50, thereby effectively improving the spot check effect.

[0217] In some embodiments, a second calibration component 280 is provided on at least one of the contoured bottom surface 220, the contoured top surface 210, the contoured first surface 230, the contoured second surface 240, the contoured third surface 250 and the contoured fourth surface 260, and the second calibration component 280 includes a protrusion, which is used to calibrate the three-dimensional shooting parameters of the first detection device 30 and the second detection device 50.

[0218] Exemplarily, the number of the bumps may be, but is not limited to, one, two, three, four or five. The bumps may be designed in different geometric shapes, such as cylindrical, square or conical shapes, which have clear heights and edges and can provide a standard three-dimensional calibration reference for the detection device. The cameras in the first detection device 30 and the second detection device 50 capture images of the bumps, and the processor 60 may compare the three-dimensional information of the imaging pattern in the image with the standard three-dimensional information of the preset bumps, thereby calibrating the three-dimensional imaging parameters of the camera.

[0219] The above technical solution introduces the second calibration piece 280 so that the profiling block 200 can be used for spot inspection and calibration of the 3D camera, thereby improving the applicability of the profiling block 200.

[0220] Fig. 9 A schematic flow chart of a spot inspection method for a battery detection system provided in some embodiments of the present application.

[0221] Continue to refer Fig. 9 According to some embodiments of the present application, the present application also provides a spot inspection method for a battery detection system, and the spot inspection method for a battery detection system includes steps 01 to 03.

[0222] Step 01, conveying the profiling block 200 by the first conveying device 20 and clamping the profiling block 200 by the first conveying device 20, photographing the profiling bottom surface 220, the profiling first surface 230 and the profiling second surface 240 of the profiling block 200 by the first detecting device 30, and obtaining the profiling bottom surface image, the profiling first surface image and the profiling second surface image; Step 02, conveying the profiling block 200 by the first conveying device 20 and carrying the profiling block 200 on the carrying device 40, photographing the profiling top surface 210, the profiling third surface 250 and the profiling fourth surface 260 of the profiling block 200 by the second detecting device 50, obtaining the profiling top surface image, the profiling third surface image and the profiling fourth surface image, wherein the profiling bottom surface 220, the profiling top surface 210, the profiling first surface 230, the profiling second surface 240, the profiling third surface 250 and the profiling fourth surface 260 are all provided with the first calibration piece 270; Step 03, when the processor 60 receives any one of the contoured bottom surface image, the contoured first surface image, the contoured second surface image, the contoured top surface image, the contoured third surface image and the contoured fourth surface image, the processor 60 generates a spot inspection result corresponding to the spot inspection image based on the spot inspection image.

[0223] For example, during the spot inspection of the battery detection system, the first detection device 30 may be inspected first, and then the second detection device 50 may be inspected; or the second detection device 50 may be inspected first, and then the first detection device 30 may be inspected.

[0224] Specifically, the first conveying device 20 may first convey the profiling block 200 to the first inspection station 11, and after the spot check of the first inspection device 30 is completed, the first conveying device 20 then conveys the profiling block 200 to the second inspection station 12, and then performs a spot check on the second inspection device 50. Alternatively, the first conveying device 20 may first convey the profiling block 200 to the second inspection station 12, and after the spot check of the second inspection device 50 is completed, the first conveying device 20 then conveys the profiling block 200 to the first inspection station 11, and then performs a spot check on the first inspection device 30.

[0225] The above technical solution first performs a spot check on the battery detection system through the profiling block 200 before using the battery detection system to perform an appearance inspection on the battery 100, so as to calibrate the first detection device 30 and the second detection device 50, thereby improving the accuracy of the subsequent appearance inspection of the battery 100. In addition, since the spot check on the first detection device 30 and the second detection device 50 can be performed during the operation of the battery detection system, the time loss caused by the downtime of the battery detection system can be effectively reduced.

[0226] It should be noted that the inspection method of the battery detection system of the present application is implemented by the battery detection system and the profiling block 200 of the present application, and all technical features of the battery detection system and the profiling block 200 mentioned in the embodiments of the present application can be correspondingly applied to the inspection method mentioned in the embodiments of the present application. The structural features and related settings of the battery detection system and the profiling block 200 can refer to the above content, and for the sake of brevity, they will not be repeated here.

[0227] In some embodiments, the inspection method of the battery detection system further includes: By means of the processor 60, when the inspection result corresponding to any one of the profiling bottom surface image, the profiling first surface image, the profiling second surface image, the profiling top surface image, the profiling third surface image and the profiling fourth surface image is not passed, an early warning signal is output; or, Through the processor 60, when the inspection results corresponding to any of the contoured bottom surface image, the contoured first surface image, the contoured second surface image, the contoured top surface image, the contoured third surface image and the contoured fourth surface image are all passed, a production signal is output.

[0228] For example, when the processor 60 analyzes any of the spot inspection images of the bottom profile image, the first profile image, the second profile image, the top profile image, the third profile image, and the fourth profile image as unsuccessful, that is, there is a large deviation between the features of the calibration piece in the spot inspection image and the standard parameters, such as geometric deformation, grayscale distortion, or three-dimensional depth measurement error, the processor 60 will trigger the early warning mechanism. Early warning signals can usually be used to notify operators or automation systems that there is an abnormality in the current detection equipment, and maintenance, recalibration, or stopping the production line to check the equipment problem may be required.

[0229] When the processor 60 analyzes any of the image inspection images of the bottom profile image, the first profile image, the second profile image, the top profile image, the third profile image, and the fourth profile image and shows that they are all passed, it means that the battery detection system is in a normal state and has the conditions to continue to perform the appearance inspection of the battery 100, and the processor 60 will output a production signal. The production signal can be used to instruct the production line to continue to operate, or to connect with other automation systems to control the production process.

[0230] The above technical solution automatically outputs a warning signal when the battery detection system fails the inspection, and promptly reminds the operator or the automation system to take corresponding measures. When the battery detection system passes the inspection, it automatically outputs a production signal so that the battery detection system automatically starts normal operation, which can effectively reduce time loss and further improve detection efficiency.

[0231] If not otherwise specified, all implementations and optional implementations of the present application can be combined with each other to form a new technical solution. All technical features and optional technical features of the present application can be combined with each other to form a new technical solution.

[0232] In order to better understand the battery detection system provided in the embodiment of the present application, based on the same inventive concept, an embodiment of the above-mentioned battery detection system in actual application is provided here for illustration.

[0233] The embodiment of the present application provides a battery detection system for detecting the outer surface of a battery 100, wherein the outer surface of the battery 100 includes a top surface 110 and a bottom surface 120 disposed opposite to each other, and an outer peripheral surface connected between the top surface 110 and the bottom surface 120, wherein the outer peripheral surface includes a first surface 130 and a second surface 140 disposed opposite to each other, and a third surface 150 and a fourth surface 160 disposed opposite to each other. The battery detection system includes a frame 10, a first conveying device 20, a first detection device 30, a carrying device 40, a second detection device 50, a processor 60, a discharging device 70 and a second conveying device 80. The frame 10 is provided with a first detection station 11 and a second detection station 12 disposed along a first direction X.

[0234] The first conveying device 20 is connected to the frame 10 and is used to convey the battery 100 to the first inspection station 11 and the second inspection station 12. The first conveying device 20 includes a clamping assembly 21 and a first moving assembly 22. The clamping assembly 21 is connected to the first moving assembly 22 and is used to clamp the third surface 150 and the fourth surface 160. The first moving assembly 22 is used to drive the clamping assembly 21 to move along the first direction X and along the vertical direction Z. The first direction X is perpendicular to the vertical direction Z.

[0235] The first inspection device 30 is disposed at the first inspection station 11, and is used to photograph the bottom surface 120, the first surface 130, and the second surface 140 to obtain a bottom surface image, a first surface image, and a second surface image when the battery 100 arrives at the first inspection station 11. The carrying device 40 is disposed at the second inspection station 12, and is used to carry the battery 100 when the battery 100 arrives at the second inspection station 12.

[0236] The second inspection device 50 is disposed at the second inspection station 12 and is used to photograph the top surface 110 , the third surface 150 and the fourth surface 160 to obtain a top surface image, a third surface image and a fourth surface image when the battery 100 is carried on the carrying device 40 .

[0237] The processor 60 is used to detect the bottom surface image, the first surface image, the second surface image, the top surface image, the third surface image and the fourth surface image to obtain the outer surface detection result of the battery 100 .

[0238] The first detection device 30, the second detection device 50 and the discharge device 70 are arranged along the first direction X, and the carrying device 40 is configured to be able to reciprocate along the first direction X. The second detection device 50 is arranged downstream of the first detection device 30, and the discharge device 70 is arranged downstream of the second detection device 50. The second conveying device 80 is used to convey the battery 100 to the discharge device 70 after the processor 60 obtains the outer surface detection result, and the discharge device 70 is used to discharge the battery 100.

[0239] The discharging device 70 includes a first output assembly 71, a second output assembly 72 and a steering assembly 73. The first output assembly 71 is arranged along a first direction X, and the second output assembly 72 is arranged along a second direction Y. The first direction X intersects with the second direction Y, and the first direction X and the second direction Y are both perpendicular to the vertical direction Z. The first output assembly 71 is used to discharge the batteries 100 whose outer surface inspection results are qualified, and the second output assembly 72 is used to discharge the batteries 100 whose outer surface inspection results are unqualified.

[0240] The steering assembly 73 is connected between the inlet end of the first output assembly 71 and the inlet end of the second output assembly 72, and the steering assembly 73 is configured to be able to rotate around a vertical axis. The second conveying device 80 is also used to convey the battery 100 to the steering assembly 73 after the processor 60 obtains the outer surface detection result. The steering assembly 73 is used to convey the battery 100 with a qualified outer surface detection result to the first output assembly 71, and convey the battery 100 with an unqualified outer surface detection result to the second output assembly 72.

[0241] In the above technical solution, when it is necessary to inspect the outer surface of the battery 100, the conveying device can transport the battery 100 to the first inspection station 11 and the second inspection station 12 respectively, and the first inspection device 30 and the second inspection device 50 can automatically align the outer surfaces of the corresponding batteries 100, so as to realize automatic acquisition of the outer surface image of the battery 100, and then, the processor 60 generates the outer surface inspection result of the battery 100 by identifying each outer surface image. Based on this, manpower can be effectively saved, and the inspection result is determined by the processor 60, which can improve the inspection efficiency and accuracy.

[0242] In addition, by setting up the first detection device 30 and the second detection device 50, and according to the specific form of the battery 100 conveyed by the first conveying device 20, the detection range of the first detection device 30 and the second detection device 50 is reasonably divided, and the connection between multiple processes is strengthened, thereby further improving the detection efficiency.

[0243] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery detection system, used for detecting the outer surface of the battery, wherein the outer surface comprises a top surface and a bottom surface disposed opposite to each other, and an outer peripheral surface connected between the top surface and the bottom surface, wherein the outer peripheral surface comprises a first surface and a second surface disposed opposite to each other, and a third surface and a fourth surface disposed opposite to each other, characterized in that: include: frame; A first conveying device, connected to the top of the frame, for clamping the third surface and the fourth surface and conveying the battery; a first detection device, configured to photograph the bottom surface, the first surface, and the second surface when the first conveying device clamps the battery; A carrying device, used for carrying the battery; A second detection device, used for photographing the top surface, the third surface and the fourth surface when the battery is carried on the carrying device; a processor, configured to detect the images of the battery taken by the first detection device and the second detection device to obtain an outer surface detection result of the battery; The rack is provided with a first inspection station and a second inspection station arranged along a first direction, the first inspection device is arranged at the first inspection station, the carrying device and the second inspection device are arranged at the second inspection station, and the first conveying device is used to convey the battery along the first direction and the vertical direction; The first detection device includes a second moving component, a first shooting component, a second shooting component and a third shooting component, wherein the first shooting component is used to shoot the bottom surface, the second shooting component is used to shoot the first surface, and the third shooting component is used to shoot the second surface; The first shooting component, the second shooting component and the third shooting component are all connected to the second moving component, and the second moving component is used to drive the first shooting component, the second shooting component and the third shooting component to move along the second direction, and the first direction, the second direction and the vertical direction are perpendicular to each other.

2. The battery detection system according to claim 1, characterized in that: The bottom surface includes a first portion, a second portion and a third portion, the first portion is connected between the third surface and the second portion, and the third portion is connected between the fourth surface and the second portion; The first photographing assembly includes a first line scan camera and a first area array camera, the first line scan camera is used to photograph the entire bottom surface, and the first area array camera is used to photograph the first part and the third part; The second shooting component includes a second line scan camera, and the second line scan camera is used to shoot the entire first surface; The third shooting component includes a third line scan camera, and the third line scan camera is used to shoot the entire second surface.

3. The battery detection system according to claim 1, characterized in that: The second detection device includes a third moving component, a fourth shooting component, a fifth shooting component and a sixth shooting component, wherein the fourth shooting component is used to shoot the top surface, the fifth shooting component is used to shoot the third surface, and the sixth shooting component is used to shoot the fourth surface; The fourth camera assembly is connected to the third moving assembly, and the third moving assembly is used to drive the fourth camera assembly to move along the second direction. The fifth camera assembly and the sixth camera assembly are relatively and fixedly arranged along the second direction, and the first direction, the second direction and the vertical direction are perpendicular to each other. The carrying device is located between the fifth shooting assembly and the sixth shooting assembly in the second direction.

4. The battery detection system according to claim 3, characterized in that: The top surface includes a fourth portion, a fifth portion and a sixth portion, the fourth portion is connected between the third surface and the fifth portion, and the sixth portion is connected between the fourth surface and the fifth portion; The fourth shooting component includes a fourth line scan camera and a second area array camera, the fourth line scan camera is used to shoot the entire top surface, and the second area array camera is used to shoot the fourth part and the sixth part; The fifth shooting component includes a third area array camera, and the third area array camera is used to shoot the entire third surface; The sixth photographing component includes a fourth area array camera, and the fourth area array camera is used to photograph the entire fourth surface.

5. The battery detection system according to claim 1, characterized in that: The first conveying device includes a clamping assembly and a first moving assembly, the clamping assembly is connected to the first moving assembly and is used to clamp the third surface and the fourth surface, and the first moving assembly is used to drive the clamping assembly to move along the first direction and along the vertical direction.

6. The battery detection system according to claim 5, characterized in that: The clamping assembly comprises a first clamping jaw and a second clamping jaw arranged opposite to each other along a second direction, the first clamping jaw and the second clamping jaw are configured to move toward or away from each other along the second direction, and the first direction, the second direction and the vertical direction are perpendicular to each other; The first clamping jaw is used to abut against the third surface, and the second clamping jaw is used to abut against the fourth surface.

7. The battery detection system according to claim 6, characterized in that: The first clamping jaw includes a first clamping portion and a first supporting portion, the first supporting portion is arranged below the first clamping portion along the vertical direction, and the first supporting portion is configured to be movable along the second direction; The second clamping jaw includes a second clamping portion and a second supporting portion, the second supporting portion is arranged below the second clamping portion along the vertical direction, and the second supporting portion is configured to be movable along the second direction; The first clamping portion is used to abut against the third surface, the first supporting portion is used to abut against the bottom surface, the second clamping portion is used to abut against the fourth surface, and the second supporting portion is used to abut against the bottom surface.

8. The battery detection system according to claim 5, characterized in that: The first conveying device also includes a self-locking component, which is connected between the clamping component and the first moving component. The self-locking component is used to brake the clamping component when the clamping component moves along the first direction to reach a first preset state and / or moves along the vertical direction to reach a second preset state.

9. The battery detection system according to claim 1, characterized in that: The battery testing system further includes a discharging device and a second conveying device, wherein the second testing device is arranged downstream of the first testing device, and the discharging device is arranged downstream of the second testing device; The second conveying device is used to convey the battery to the discharging device after the processor obtains the outer surface detection result, and the discharging device is used to discharge the battery.

10. The battery detection system according to claim 9, characterized in that: The discharging device comprises a first output assembly and a second output assembly, the first output assembly is arranged along a first direction, the second output assembly is arranged along a second direction, and the first direction intersects with the second direction; The first output assembly is used to discharge the batteries whose outer surface inspection results are qualified, and the second output assembly is used to discharge the batteries whose outer surface inspection results are unqualified.

11. The battery detection system according to claim 10, characterized in that: The discharging device further comprises a steering assembly, the steering assembly being connected between an inlet end of the first output assembly and an inlet end of the second output assembly, the steering assembly being configured to be rotatable about a vertical axis; The second conveying device is also used to convey the battery to the steering assembly after the processor obtains the outer surface detection result, and the steering assembly is used to convey the battery with a qualified outer surface detection result to the first output assembly, and convey the battery with an unqualified outer surface detection result to the second output assembly.

12. The battery detection system according to claim 10, characterized in that: The first output assembly comprises a first transfer assembly, a second transfer assembly, a first transmission layer and a second transmission layer, the first transmission layer and the second transmission layer both extend along the first direction, the first transmission layer and the second transmission layer are spaced apart in a vertical direction and both are connected between the first transfer assembly and the second transfer assembly, and the first direction is perpendicular to the vertical direction; A tray is disposed on at least one of the first transport layer and the second transport layer, the tray being used to carry the battery, the first transport layer and the second transport layer being used to transport the tray along the first direction, respectively, and the transport directions of the first transport layer and the second transport layer are opposite; The first transfer assembly is used to transfer the pallet located on the first transfer layer to the second transfer layer, and the second transfer assembly is used to transfer the pallet located on the second transfer layer to the first transfer layer.

13. The battery detection system according to claim 9, characterized in that: The first detection device, the second detection device and the discharging device are arranged along a first direction, and the carrying device is configured to be able to reciprocate along the first direction.

14. The battery detection system according to claim 1, characterized in that: The first conveying device is further used to clamp and convey a profiling block, the profiling block matches the structure of the battery, the profiling block includes a profiling bottom surface corresponding to the bottom surface, a profiling top surface corresponding to the top surface, a profiling first surface corresponding to the first surface, a profiling second surface corresponding to the second surface, a profiling third surface corresponding to the third surface, and a profiling fourth surface corresponding to the fourth surface, wherein the first conveying device is used to clamp the profiling third surface and the profiling fourth surface; The contoured bottom surface, the contoured top surface, the contoured first surface, the contoured second surface, the contoured third surface and the contoured fourth surface are all provided with a first calibration piece; The first detection device is also used to photograph the profiling bottom surface, the profiling first surface and the profiling second surface when the first conveying device clamps the profiling block; The second detection device is also used to photograph the profiling top surface, the profiling third surface and the profiling fourth surface when the profiling block is carried on the carrying device; The processor is further used to detect the outer surface images of the profiling block photographed by the first detection device and the second detection device, and generate the spot inspection result of the first detection device and the spot inspection result of the second detection device.

15. The battery detection system according to claim 14, characterized in that: The contoured bottom surface, the contoured top surface, the contoured first surface, the contoured second surface, the contoured third surface and the contoured fourth surface are all provided with a plurality of first calibration pieces; At least two of the plurality of first calibration pieces located on the same profiling surface are staggered in a direction perpendicular to the profiling surface.

16. The battery detection system according to claim 14, characterized in that: The first calibration part includes a graphic feature part and a grayscale feature part. The graphic feature part is used to calibrate the graphic shooting parameters of the first detection device and the second detection device, and the grayscale feature part is used to calibrate the grayscale shooting parameters of the first detection device and the second detection device.

17. The battery detection system according to claim 14, characterized in that: A second calibration piece is arranged on at least one of the contouring bottom surface, the contouring top surface, the contouring first surface, the contouring second surface, the contouring third surface and the contouring fourth surface, and the second calibration piece includes a protrusion, and the protrusion is used to calibrate the three-dimensional shooting parameters of the first detection device and the second detection device.

18. A method for spot checking a battery detection system, characterized in that: The inspection method comprises: The profiling block is conveyed by a first conveying device and clamped by the first conveying device, and a profiling bottom surface, a profiling first surface and a profiling second surface of the profiling block are photographed by a first detecting device to obtain a profiling bottom surface image, a profiling first surface image and a profiling second surface image; The profiling block is transported by the first conveying device and when the profiling block is carried on the carrying device, the profiling top surface, the profiling third surface and the profiling fourth surface of the profiling block are photographed by the second detecting device to obtain a profiling top surface image, a profiling third surface image and a profiling fourth surface image, wherein the profiling bottom surface, the profiling top surface, the profiling first surface, the profiling second surface, the profiling third surface and the profiling fourth surface are all provided with a first calibration piece; When the processor receives any one of the contoured bottom surface image, the contoured first surface image, the contoured second surface image, the contoured top surface image, the contoured third surface image and the contoured fourth surface image, the processor generates a spot inspection result corresponding to the spot inspection image based on the spot inspection image.

19. The inspection method of a battery inspection system according to claim 18, characterized in that: The inspection method further comprises: By means of the processor, when the inspection result corresponding to any one of the profiling bottom surface image, the profiling first surface image, the profiling second surface image, the profiling top surface image, the profiling third surface image and the profiling fourth surface image is not passed, outputting a warning signal; or, Through the processor, when the inspection results corresponding to any one of the contoured bottom surface image, the contoured first surface image, the contoured second surface image, the contoured top surface image, the contoured third surface image and the contoured fourth surface image are all passed.

Images