Battery case defect detection system, method, equipment and medium

Abstract

The invention provides a battery shell defect detection system, method and equipment and a medium. The system comprises a movable clamping jig, a camera and a processor. The method comprises the following steps: selecting a target jig from an internal inspection jig and an external inspection jig according to models; the clamping width of the target jig is adjusted according to the model; selecting a target detection station and a target detection model according to the model; feeding the battery shell to a target clamp, enabling the target clamp to move to a target detection station, and carrying out defect detection on the battery shell according to the target detection model to obtain a defect detection result; the clamping jig and the detection model can be rapidly switched according to the detection modes of different types of battery shells, and the detection efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of industrial inspection, and in particular to battery shell defect detection systems, methods, equipment and media. Background Art

[0002] The outer shell of the car battery used in new energy vehicles is usually a square aluminum shell. In order to adapt to different application conditions, production equipment and diversified needs, and to consider manufacturing, environmental protection and cost factors to ensure the performance and safety of the battery, there are many types of square aluminum shells. Square batteries need to be customized according to different needs in order to cope with different utilization spaces. At present, for different aluminum shell models, the visual defect detection system requires specific fixtures to clamp the aluminum shells, so as to ensure a certain position and posture, so that the visual acquisition unit can accurately and stably collect image data and the detection unit can accurately detect. Usually, special fixtures are used for replacement and detection, which has the problems of low efficiency, high cost and difficult to ensure accuracy, and it is difficult to adapt to the needs of fast switching of stamping aluminum shell models in front-end production. After the fixture is changed, the applicability of the detection algorithm also needs to be adjusted and tested for a long time to meet the on-site detection requirements, mainly because the field of view and resolution of the camera have changed, and secondly, the aluminum shells produced have differences in size, shape, surface treatment, etc., which makes the detection algorithm unable to directly and effectively adapt to the production of new models of aluminum shells. After the change of model, the detection algorithm and software also need a long debugging cycle, which seriously reduces the production efficiency. Summary of the invention

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] The purpose of the present application is to solve one of the technical problems existing in the related art to at least a certain extent. The embodiments of the present application provide a battery shell defect detection system, method, device and medium, which can adapt to the defect detection of battery shells of different models.

[0005] An embodiment of the first aspect of the present application, a battery shell defect detection system, includes:

[0006] A plurality of clamping jigs, the clamping jigs comprising an internal inspection jig and an external inspection jig, the internal inspection jig being movably connected with a first clamping column, the first clamping column being used to clamp from the outside of the battery shell to be inspected, the external inspection jig being movably connected with a second clamping column, the second clamping column being used to clamp from the inside of the battery shell to be inspected;

[0007] A camera, the camera is used to capture an image of the battery shell to be inspected on the clamping fixture;

[0008] A processor is used to perform defect detection on the battery shell to be detected according to the image of the battery shell to be detected to obtain a defect detection result.

[0009] According to certain embodiments of the first aspect of the present application, the internal inspection jig includes a first internal inspection jig and a second internal inspection jig, and the first clamping column of the first internal inspection jig is shorter than the first clamping column of the second internal inspection jig.

[0010] According to certain embodiments of the first aspect of the present application, the external inspection jig includes a first external inspection jig and a second external inspection jig, and the second clamping column of the first external inspection jig is shorter than the second clamping column of the second external inspection jig.

[0011] The embodiment of the second aspect of the present application is a battery shell defect detection method, which uses the battery shell defect detection system as described in the embodiment of the first aspect of the present application, and the method includes:

[0012] Get the model of the battery case to be tested;

[0013] Determine a detection method according to the model, and select a target fixture from an internal inspection fixture and an external inspection fixture according to the detection method;

[0014] Determining the size of the battery shell to be tested according to the model, and adjusting the clamping width of the target fixture according to the size;

[0015] Selecting a target detection station from a station parameter library according to the model;

[0016] Selecting a target detection model from a model library according to the model;

[0017] The battery shell to be inspected is loaded onto the target fixture, the target fixture is moved to the target inspection station, and defect inspection is performed on the battery shell to be inspected according to the target inspection model to obtain a defect inspection result.

[0018] According to certain embodiments of the second aspect of the present application, performing defect detection on a battery shell to be detected according to the target detection model includes:

[0019] Acquire an image of the battery shell to be inspected by a camera;

[0020] Defect detection is performed on the image of the battery shell to be inspected according to the target detection model.

[0021] According to certain embodiments of the second aspect of the present application, the method further comprises a visual adjustment step before detection;

[0022] The visual adjustment step comprises:

[0023] Acquire a first image of the battery shell on each station by each camera;

[0024] adjusting an imaging state according to the first image to obtain an adjusted image;

[0025] When the average grayscale value of the effective field of view of the adjusted image reaches a preset grayscale value, the current imaging state is determined as the standard imaging state.

[0026] According to certain embodiments of the second aspect of the present application, the method further comprises a step of adjusting the internal inspection fixture before the inspection;

[0027] The steps of adjusting the internal inspection fixture include:

[0028] According to the size of the battery shell to be inspected, adjusting the spacing between the first clamping columns of the internal inspection jig;

[0029] The verticality of the first clamping columns and the parallelism between adjacent first clamping columns are adjusted.

[0030] According to certain embodiments of the second aspect of the present application, the method further comprises a step of adjusting the external inspection fixture before the inspection;

[0031] The steps of adjusting the external inspection fixture include:

[0032] According to the size of the battery shell to be tested, the spacing between the second clamping columns of the external inspection jig is adjusted;

[0033] According to the size of the battery shell to be tested, determine the positioning hole of the base of the external inspection fixture, and adjust the locking position of the positioning groove of the external inspection fixture;

[0034] Adjusting the parallelism between the second clamping column and the base;

[0035] Wherein, the positioning hole and the positioning groove cooperate to control the size of the battery shell clamped by the second clamping column.

[0036] An embodiment of the third aspect of the present application is an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the battery case defect detection method as described in the embodiment of the second aspect of the present application is implemented.

[0037] An embodiment of the fourth aspect of the present application is a computer storage medium, characterized in that it stores computer executable instructions, and the computer executable instructions are used to execute the battery shell defect detection method as described in the embodiment of the second aspect of the present application.

[0038] The above scheme has at least the following beneficial effects: it can realize the rapid switching of the detection methods for different types of battery shells, and can be applied to different types of battery shells through movable fixtures, without the need to customize corresponding special fixtures for different types of battery shells, thus saving production costs and time for replacing fixtures. The software architecture supports multi-model algorithm compatible configuration, and can automatically switch the detection stations and detection models corresponding to different types of battery shells, without the need to readjust and test the action of changing the fixture and the mechanical pneumatic devices of the equipment, and without the need to readjust and test the detection algorithm, thus reducing debugging time and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0040] Figure 1 is a structural diagram of a first internal inspection fixture provided in an embodiment of the present application;

[0041] Figure 2 is a structural diagram of a second internal inspection fixture provided in an embodiment of the present application;

[0042] Figure 3 is a structural diagram of a first external inspection fixture provided in an embodiment of the present application;

[0043] Figure 4 is a structural diagram of a second external inspection fixture provided in an embodiment of the present application;

[0044] Figure 5 is a state diagram of a first internal inspection jig clamping a battery shell provided by an embodiment of the present application;

[0045] Figure 6 is a state diagram of a second internal inspection jig clamping a battery shell provided by an embodiment of the present application;

[0046] Figure 7 is a state diagram of a first external inspection fixture clamping a battery shell provided by an embodiment of the present application;

[0047] Figure 8 is a state diagram of a second external inspection fixture clamping a battery shell provided by an embodiment of the present application;

[0048] Fig. 9 It is a step diagram of a battery shell defect detection method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0050] It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims or the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0051] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0052] An embodiment of the present application provides a battery casing defect detection system.

[0053] Battery case defect detection system, including: multiple clamping fixtures, cameras and processors.

[0054] Among them, the clamping jig includes an internal inspection jig and an external inspection jig. The internal inspection jig is movably connected with a first clamping column, and the first clamping column is used to clamp from the outside of the battery shell to be inspected. The external inspection jig is movably connected with a second clamping column, and the second clamping column is used to clamp from the inside of the battery shell to be inspected.

[0055] The camera is used to capture an image of the battery case to be inspected.

[0056] The processor is used to perform defect detection on the battery shell to be detected according to the image of the battery shell to be detected, and obtain a defect detection result.

[0057] It is understandable that the battery case defect detection system also includes other module components, such as a loading robot, an unloading robot, a conveyor belt, etc.

[0058] As for the battery case, the battery case is made of aluminum material. The battery case has different models, and the battery cases of different models have different sizes.

[0059] For clamping fixtures, refer to Figure 5 and Figure 6 The internal inspection jig is clamped from the outside of the battery shell to be inspected by the first clamping column. The inner side of the first clamping column contacts the battery shell, and the surface of the inner side of the first clamping column in contact with the battery shell is provided with a steel plate.

[0060] Reference Figure 7 and Figure 8The external inspection jig clamps the battery shell to be inspected from the inside through the second clamping column to support the battery shell. The outer side of the second clamping column contacts the battery shell, and the surface of the outer side of the second clamping column in contact with the battery shell is provided with a steel plate.

[0061] Sai steel plate has the characteristics of light weight, wear reduction and wear resistance, and will not cause secondary damage to the aluminum shell.

[0062] Each clamping jig has a fixed edge as a reference, and springs are used to control the movement of the active structure. The internal inspection jig clamps the aluminum shell, and the external inspection jig supports the aluminum shell internally, thereby accurately fixing the position and posture of the battery shell on the jig. The internal inspection jig is compatible with the clamping of different types of aluminum shells through the adjustment of guide rods and sliders; the external inspection jig controls the size of the internal support through the combination of U-shaped grooves and high-precision positioning holes to adapt to different types of aluminum shells. Since the calibration jig includes the confirmation of the parallelism and verticality of the fixed edges, the fixed contact position is the reference surface.

[0063] The long and short sides of the internal inspection jig are fixed on one side respectively, and two sets of cylinders are used to perform bidirectional clamping to ensure the position and posture of the aluminum shell on the jig; the external inspection jig locates the position and posture of the aluminum shell through unilateral clamping.

[0064] The front-end stamping equipment is divided into high and low types, so different types of internal inspection jigs and external inspection jigs are divided into two types to adapt to the production and inspection of high and low types of battery shells. The high type supports a height of 100-205mm, and the low type supports a height of 72-120mm.

[0065] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6 The internal inspection jig includes a first internal inspection jig 110 and a second internal inspection jig 120. The first internal inspection jig 110 is a short internal inspection jig, and the second internal inspection jig 120 is a long internal inspection jig. The first clamping column 111 of the first internal inspection jig 110 is shorter than the first clamping column 121 of the second internal inspection jig 120.

[0066] Reference Figure 3 , Figure 4 , Figure 7 and Figure 8 The external inspection fixture includes a first external inspection fixture 130 and a second external inspection fixture 140. The first external inspection fixture 130 is a short external inspection fixture, and the second external inspection fixture 140 is a long external inspection fixture. The second clamping column 131 of the first external inspection fixture 130 is shorter than the second clamping column 141 of the second external inspection fixture 140.

[0067] The embodiment of the present application provides a battery shell defect detection method. The battery shell defect detection method applies the above battery shell defect detection system.

[0068] Reference Fig. 9 , the battery shell defect detection method comprises the following steps:

[0069] Step S110, obtaining the model of the battery shell to be detected;

[0070] Step S120, determining a detection method according to the model, and selecting a target fixture from an internal inspection fixture and an external inspection fixture according to the detection method;

[0071] Step S130, determining the size of the battery shell to be tested according to the model, and adjusting the clamping width of the target fixture according to the size;

[0072] Step S140, selecting a target detection station from a station parameter library according to the model;

[0073] Step S150, selecting a target detection model from a model library according to the model;

[0074] Step S160, loading the battery shell to be inspected onto the target fixture, moving the target fixture to the target inspection station, performing defect inspection on the battery shell to be inspected according to the target inspection model, and obtaining a defect inspection result.

[0075] In step S160, an image of the battery shell to be inspected is acquired by a camera; and defect detection is performed on the image of the battery shell to be inspected according to the target detection model.

[0076] Before defect detection can be performed, hardware and software need to be tuned.

[0077] For hardware adjustment, it includes the steps of adjusting the external inspection fixture, adjusting the internal inspection fixture, adjusting the actuator, visual adjustment and hardware action confirmation.

[0078] The step of adjusting the internal inspection jig includes the following steps: adjusting the spacing between the first clamping columns of the internal inspection jig according to the size of the battery shell to be inspected; and adjusting the verticality of the first clamping columns and the parallelism between adjacent first clamping columns.

[0079] Specifically, according to the width of the battery shell, loosen the left and right clamping fastening bolts of the fixed and movable ends of the internal inspection fixture to adjust the clamping width of the battery shell; when the spring is contracted, the distance between the two sides is 10mm to 15mm smaller than the width of the battery shell. According to the length of the battery shell, adjust the position of the movable end. When the spring is contracted, the distance between the fixed and movable ends is 20mm to 30mm smaller than the length of the battery shell; finally, adjust the spacing of the first clamping columns on the outer small surface to 5mm to 10mm away from the outer edge. After the adjustment is completed, adjust the verticality of the first clamping column and the parallelism between adjacent first clamping columns to ensure that the clamping posture of the aluminum shell is parallel to the trolley.

[0080] The step of adjusting the external inspection jig includes the following steps: adjusting the spacing between the second clamping columns of the external inspection jig according to the size of the battery shell to be inspected; determining the positioning hole of the base of the external inspection jig according to the size of the battery shell to be inspected, and adjusting the locking position of the positioning groove of the external inspection jig; adjusting the parallelism of the second clamping column and the base.

[0081] The positioning hole and the positioning groove cooperate to control the size of the battery shell clamped by the second clamping column. The positioning groove is a U-shaped groove.

[0082] According to the width of the battery shell to be tested, adjust the spacing of the second clamping columns on each side. Close to the edge of the battery shell, the distance is 5mm to 10mm. According to the length of the battery shell to be tested, adjust the position of the parts of the mobile end and select the appropriate positioning holes on the base. Adjust the locking position of the U-shaped groove of the moving part to confirm that the opening and closing of the external inspection fixture can stabilize the internal support aluminum shell. After the adjustment is completed, calibrate the parallelism of the mobile end and the base to ensure that the second clamping column can completely fit the inside of the battery shell.

[0083] The steps of adjusting the actuator include the following steps: calling the corresponding formula to automatically adjust the material gripping height and material discharge height of the loading robot and the unloading robot. Manually or automatically adjust other actuators, such as cylinders, modules, etc.

[0084] The visual adjustment step includes the following steps: obtaining a first image of the battery shell on each workstation by each camera; adjusting the imaging state according to the first image to obtain an adjusted image; when the average grayscale value of the effective field of view of the adjusted image reaches a preset grayscale value, determining the current imaging state as a standard imaging state.

[0085] Specifically, the first image is a factory standard image.

[0086] The hardware action confirmation step includes the following steps: manually loading and unloading the battery shell, the equipment automatically runs, and confirms whether the adjustments of the internal and external inspection fixtures, mechanical actuators, and visual photography are completed. If 50 pieces of materials are normally operated and the visual imaging is consistent with the standard image, it means that the hardware adjustment is completed.

[0087] For software tuning, there are four steps involved.

[0088] The first step is to select the model of the replacement battery shell in the software product setting interface, and read the relevant historical record information of the model of the replacement battery shell from the database. When no relevant historical record information is read, the model of the replacement battery shell is a new model. Create a new model of the corresponding battery shell, such as 26301, 31304, etc., and then save it in the database. In the database, the battery shell model and various related information (such as the size and detection method of the battery shell, etc.) are stored in the form of key-value pairs.

[0089] In the second step, the station configuration and algorithm configuration automatically switch the setting path and parameters of the corresponding model. If it is a new model, select the appropriate station detection method in the station configuration interface; in the algorithm configuration interface, call the detection model that meets the requirements.

[0090] All setting paths and parameters will be saved in the folder of the corresponding model. Then, select the model to be switched through the product setting interface, and the system will automatically read the configuration file of the corresponding model folder. Each battery shell model folder mainly contains files in XML and INI formats, such as work_stat ion_config.xml for station configuration, AiMode l Param.xml for algorithm and parameter configuration, etc. After the model is switched, the corresponding data and reports will be stored in the folder of the newly switched model, which is convenient for subsequent production data to be checked and traced. Such configuration files can be extended to other equipment horizontally, helping each line to quickly achieve model change, so that the detection equipment can be online faster, and each line has scalability and extensibility.

[0091] The third step is to update the system and save the current station and algorithm configuration. The operator first switches to the station interface, clicks Save Station Parameters and Update Station Parameters at the bottom of the interface, then switches to the algorithm interface, clicks Save Algorithm Parameters and Update Algorithm Parameters at the bottom of the interface.

[0092] The fourth step is to use the template battery shell (a battery shell with predetermined defects) to confirm the detection effect of the workstation and algorithm call. If the defects can be detected normally and the categories are correct, the software adjustment is completed.

[0093] For the verification step, 10 pieces of good materials, re-inspected materials and defective materials are put into production to ensure the operation of the battery shell defect detection system. When the battery shell defect detection system can normally identify defects on the image and the battery shell defect detection system is feeding correctly, it will enter the production inspection stage. Otherwise, the cause of the corresponding abnormality will be investigated and resolved.

[0094] The battery shell defect detection system is connected to the front-end production equipment (cleaning machine) for online production. The battery shell defect detection system detects all produced aluminum shells.

[0095] Conduct production statistics on the inspection rhythm and over / under inspection indicators of the battery case inspection system, conduct comparative analysis based on the manually reviewed inspection results and equipment, and optimize and adjust according to production requirements until the production process requirements are met and the battery case inspection system is put online after passing the inspection of the quality department.

[0096] The online battery shell inspection system obtains the model of the battery shell to be inspected. The inspection method is determined according to the model, and the target fixture is selected from the internal inspection fixture and the external inspection fixture according to the inspection method. When the inspection method corresponding to the model is the internal inspection method, the internal inspection fixture is selected as the target fixture according to the internal inspection method; when the inspection method corresponding to the model is the external inspection method, the external inspection fixture is selected as the target fixture according to the external inspection method. Determine the size of the battery shell to be inspected according to the model, and adjust the clamping width of the target fixture according to the size. Select the target inspection station from the station parameter library according to the model; select the target detection model from the model library according to the model; load the battery shell to be inspected to the target fixture, move the target fixture to the target inspection station, and obtain the image of the battery shell to be inspected through the camera; perform defect detection on the image of the battery shell to be inspected through image recognition technology according to the target detection model based on the neural network, and obtain the defect detection result.

[0097] The above battery shell defect detection system and battery shell defect detection method can realize the rapid switching of detection methods for different types of battery shells. The movable fixture is applied to different types of battery shells, and there is no need to customize corresponding special fixtures for different types of battery shells, which saves production costs and saves time for replacing fixtures. The software architecture supports multi-model algorithm compatible configuration, and can automatically switch the detection stations and detection models corresponding to different types of battery shells. There is no need to readjust and test the coordination between the replacement fixture and the mechanical pneumatic devices of the equipment, and there is no need to readjust and test the detection algorithm, which reduces debugging time and improves production efficiency.

[0098] An embodiment of the present application provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned battery case defect detection method when executing the computer program.

[0099] The electronic device may be any intelligent terminal including a computer.

[0100] In general, for the hardware structure of the electronic device, the processor can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, etc., to execute related programs to implement the technical solutions provided in the embodiments of the present application.

[0101] The memory can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory can store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory, and the processor is called to execute the methods of the embodiments of this application.

[0102] The input / output interface is used to realize information input and output.

[0103] The communication interface is used to realize the communication interaction between this device and other devices. Communication can be achieved through wired methods (such as USB, network cable, etc.) or wireless methods (such as mobile network, WI FI, Bluetooth, etc.).

[0104] The bus transmits information between the various components of the device (such as the processor, memory, input / output interface, and communication interface). The processor, memory, input / output interface, and communication interface communicate with each other within the device through the bus.

[0105] An embodiment of the present application provides a computer storage medium storing computer executable instructions for executing the battery shell defect detection method as described above.

[0106] It will be appreciated by those skilled in the art that all or some of the steps and systems in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or transient medium). As is well known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium. In the above description of this specification, the description of reference terms "one embodiment / example", "another embodiment / example" or "certain embodiments / examples" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0107] Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.

[0108] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0109] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0110] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including multiple instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store programs.

[0111] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above-mentioned units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

[0112] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the embodiments. Technical personnel familiar with the field can make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A battery shell defect detection system, characterized in that: include: A plurality of clamping jigs, the clamping jigs comprising an internal inspection jig and an external inspection jig, the internal inspection jig being movably connected with a first clamping column, the first clamping column being used to clamp from the outside of the battery shell to be inspected, the external inspection jig being movably connected with a second clamping column, the second clamping column being used to clamp from the inside of the battery shell to be inspected; A camera, the camera is used to capture an image of the battery shell to be inspected on the clamping fixture; A processor is used to perform defect detection on the battery shell to be detected according to the image of the battery shell to be detected to obtain a defect detection result.

2. The battery shell defect detection system according to claim 1, characterized in that: The internal inspection jig includes a first internal inspection jig and a second internal inspection jig, wherein the first clamping column of the first internal inspection jig is shorter than the first clamping column of the second internal inspection jig.

3. The battery shell defect detection system according to claim 1, characterized in that: The external inspection jig includes a first external inspection jig and a second external inspection jig, wherein the second clamping column of the first external inspection jig is shorter than the second clamping column of the second external inspection jig.

4. A battery shell defect detection method, characterized in that: Using the battery shell defect detection system according to any one of claims 1 to 3, the method comprises: Get the model of the battery case to be tested; Determine a detection method according to the model, and select a target fixture from an internal inspection fixture and an external inspection fixture according to the detection method; Determining the size of the battery shell to be inspected according to the model, and adjusting the clamping width of the target fixture according to the size; Selecting a target detection station from a station parameter library according to the model; Selecting a target detection model from a model library according to the model; The battery shell to be inspected is loaded onto the target fixture, the target fixture is moved to the target inspection station, and defect inspection is performed on the battery shell to be inspected according to the target inspection model to obtain a defect inspection result.

5. The battery shell defect detection method according to claim 4, characterized in that: The performing defect detection on the battery shell to be detected according to the target detection model includes: Acquire an image of the battery shell to be inspected by a camera; Defect detection is performed on the image of the battery shell to be inspected according to the target detection model.

6. The battery shell defect detection method according to claim 5, characterized in that: The method also includes a visual adjustment step before detection; The visual adjustment step comprises: Acquire a first image of the battery shell on each station by each camera; adjusting an imaging state according to the first image to obtain an adjusted image; When the average grayscale value of the effective field of view of the adjusted image reaches a preset grayscale value, the current imaging state is determined as the standard imaging state.

7. The battery shell defect detection method according to claim 4, characterized in that: The method also includes a step of adjusting the internal inspection fixture before the inspection; The steps of adjusting the internal inspection fixture include: According to the size of the battery shell to be inspected, adjusting the spacing between the first clamping columns of the internal inspection jig; The verticality of the first clamping columns and the parallelism between adjacent first clamping columns are adjusted.

8. The battery shell defect detection method according to claim 4, characterized in that: The method also includes a step of adjusting the external inspection fixture before the inspection; The steps of adjusting the external inspection fixture include: According to the size of the battery shell to be tested, the spacing between the second clamping columns of the external inspection jig is adjusted; According to the size of the battery shell to be tested, determine the positioning hole of the base of the external inspection fixture, and adjust the locking position of the positioning groove of the external inspection fixture; Adjusting the parallelism between the second clamping column and the base; Wherein, the positioning hole and the positioning groove cooperate to control the size of the battery shell clamped by the second clamping column.

9. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the battery case defect detection method according to any one of claims 4 to 8 is implemented.

10. A computer storage medium, characterized in that: Computer executable instructions are stored, and the computer executable instructions are used to execute the battery shell defect detection method according to any one of claims 4 to 8.

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