Lithium battery cover plate six-surface detection device and method thereof

Abstract

The invention discloses a lithium battery cover plate six-surface detection device and method, and relates to the technical field of lithium battery detection. The lithium battery cover plate six-face detection device comprises a detection device rack, a lifting elevator, a cleaning and dust removing mechanism, a film pasting mechanism, a product overturning module, a feeding transfer mechanical arm and a detection belt are arranged on the detection device rack, and the lifting elevator, the cleaning and dust removing mechanism, the film pasting mechanism, the product overturning module, the feeding transfer mechanical arm and the detection belt are arranged on the detection device rack. A camera detection unit is arranged on the detection belt, and a discharging mechanism is arranged on the detection device rack. According to the six-face detection device for the lithium battery cover plate, automatic treatment is achieved in the whole process from cleaning and dust removal, film pasting, overturning, detection to discharging, the phenomenon that the detection effect is affected by dirt is reduced, meanwhile, manual intervention is greatly reduced in the detection process, the production efficiency and consistency are improved, and the production cost is reduced. And comprehensive detection of six surfaces of the lithium battery cover plate can be realized through the multi-camera detection unit.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery detection, and in particular to a lithium battery cover plate six-side detection device and method. Background Art

[0002] Lithium battery cover refers to the plate material used to cover new energy batteries, especially the top packaging structure of lithium-ion batteries. It is usually made of materials such as aluminum alloy, steel plate and plastic. The lithium battery cover plays an important role in protecting the battery core, achieving sealing, current conduction, explosion-proof and pressure relief.

[0003] In the prior art, after the lithium battery cover is processed, it is necessary to conduct inspection to ensure the stable quality of the lithium battery cover. The existing lithium battery cover inspection has a low degree of automation, and the inspection method cannot cover all surfaces of the lithium battery cover. Therefore, multi-surface and multiple classification inspections are required, which leads to missed inspections or false inspections during the inspection of the lithium battery cover. The influence of human factors is increased during the inspection process, which reduces the stability of product quality. In addition, during the inspection process, dirt generated on the surface of the lithium battery cover is also likely to affect the inspection effect. In view of the shortcomings of the prior art, the present invention provides a six-sided inspection device and method for a lithium battery cover to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a six-sided detection device and method for a lithium battery cover. The entire process from cleaning and dust removal, film pasting, flipping, detection to unloading is automated, reducing the phenomenon of dirt affecting the detection effect. At the same time, the detection process greatly reduces manual intervention and improves production efficiency and consistency. The multi-camera detection unit can realize comprehensive detection of the six sides of the lithium battery cover to ensure product quality. Each functional module is relatively independent and can be flexibly adjusted and optimized according to production needs to adapt to the detection of lithium battery covers of different specifications and types.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a six-side detection device for a lithium battery cover, comprising a detection device frame, on which a lifting hoist is provided;

[0006] The detection device frame is provided with a cleaning and dust removal mechanism and a film pasting mechanism, and the detection device frame is provided with a product flipping module, and the product flipping module is arranged at the tail position of the film pasting mechanism;

[0007] The detection device frame is provided with a material transfer robot, and the material transfer robot is arranged at the position of the product turning module;

[0008] A detection belt is provided on the detection device frame, and a camera detection unit is provided on the detection belt;

[0009] A material unloading mechanism is arranged on the frame of the detection device, and the material unloading mechanism is arranged at the end of the detection belt.

[0010] Preferably, the cleaning and dust removal mechanism includes a top dust removal component and a bottom dust removal component.

[0011] Preferably, the film pasting mechanism comprises a glue pasting material feeding module, a glue pasting transplanting module and a glue pasting module, and the film pasting mechanism also comprises a glue supplying module for supplying materials.

[0012] Preferably, the feeding transfer robot is provided with a material dividing module.

[0013] Preferably, the camera detection unit includes a cover camera, a cover edge detection camera, a first long side camera, a second long side camera, a first short side camera, a second short side camera, an injection hole detection camera and a back side detection camera, and the cover camera, the cover edge detection camera, the first long side camera, the second long side camera, the first short side camera, the second short side camera, the injection hole detection camera and the back side detection camera are arranged on a detection device frame.

[0014] Preferably, the detection belt also includes a first barcode scanning gun arranged on a detection device frame.

[0015] Preferably, the unloading mechanism includes a transfer unloading robot and a unloading belt arranged on the frame of the detection device.

[0016] Preferably, the unloading mechanism further comprises an NG pushing assembly, an OK unloading manipulator and an OK silo which are arranged on the frame of the detection device.

[0017] Preferably, the unloading mechanism further includes an NG belt, an NG unloading robot and an NG silo, and a second barcode scanner is provided above the unloading belt, and the second barcode scanner is fixedly connected to the frame of the detection device.

[0018] The second aspect of the present invention provides a six-side detection device and method for a lithium battery cover plate, and the use method comprises the following steps: step S1, the assembly machine receives materials, and the materials are loaded by a lifting hoist to send the lithium battery cover plate to the cleaning and dust removal mechanism;

[0019] Step S2, when the lithium battery cover is transported to the position of the cleaning and dust removal mechanism, the cleaning and dust removal mechanism performs plasma cleaning and dust removal;

[0020] Step S3, after the lithium battery cover is cleaned and dusted by the cleaning and dust removal mechanism, it is transported to the film pasting mechanism position through the belt of the cleaning and dust removal mechanism, and the film pasting mechanism is used to apply film to the back of the lithium battery cover;

[0021] Step S4, after the film pasting mechanism pasted the film on the back of the lithium battery cover, it was turned over by the product turning module, and then transported to the inspection belt by the loading transfer robot;

[0022] Step S5, when the lithium battery cover is conveyed on the detection belt, firstly, the information is scanned and confirmed by the first barcode scanner;

[0023] Step S6, after the lithium battery cover is scanned and confirmed, it is transported on the inspection belt and inspected on six sides using a camera inspection unit;

[0024] Step S7, the lithium battery cover is finally unloaded by the unloading mechanism, and the tested lithium battery cover is conveyed to the unloading belt by the transfer unloading manipulator;

[0025] Step S8, when the lithium battery cover is detected to have no defects, it is unloaded from the OK unloading robot to the OK silo. When the lithium battery cover is detected to have defects, the lithium battery cover is pushed to the NG belt by the NG pushing assembly and transported to the NG silo by the NG unloading robot.

[0026] The present invention discloses a six-side detection device and method for a lithium battery cover, which have the following beneficial effects:

[0027] 1. The six-sided inspection device for lithium battery cover plates has realized automated processing in the entire process from cleaning and dust removal, film application, flipping, inspection to unloading, reducing the phenomenon of dirt affecting the inspection effect. At the same time, the inspection process greatly reduces manual intervention and improves production efficiency and consistency. Through the multi-camera inspection unit, it can realize comprehensive inspection of the six sides of the lithium battery cover plate to ensure product quality. Each functional module is relatively independent and can be flexibly adjusted and optimized according to production needs to adapt to the inspection of lithium battery covers of different specifications and types.

[0028] 2. The six-sided inspection device for lithium battery cover realizes accurate tracking of product information through the code scanning confirmation mechanism, which is convenient for quality management and subsequent analysis. The unloading mechanism automatically classifies and stores the products into OK bin or NG bin according to the inspection results, reducing manpower and facilitating operation.

[0029] 3. The six-sided detection device of the lithium battery cover and the cleaning and dust removal mechanism ensure that the surface of the lithium battery cover is clean and dust-free. The cleaning and dust removal mechanism is used to realize the plasma cleaning process. The top dust removal component and the bottom dust removal component respectively realize the upper and lower surface cleaning of the lithium battery cover to ensure the good cleaning effect of the lithium battery cover. The active ions in the plasma react with the pollutants on the surface of the lithium battery cover, and the pollutants are removed from the surface through physical bombardment and chemical action. At the same time, the plasma can also activate the surface of the lithium battery cover to improve its surface energy, which is beneficial to the subsequent gluing, bonding and other processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a three-dimensional structural diagram of the present invention;

[0033] Figure 3 It is a detection flow chart of the present invention.

[0034] In the figure: 1. Detection device frame; 101. Lifting hoist; 2. Cleaning and dust removal mechanism; 201. Top dust removal assembly; 202. Bottom dust removal assembly; 3. Film sticking mechanism; 301. Glue sticking feeding module; 302. Glue sticking transplanting module; 303. Glue sticking module; 304. Glue supply module; 4. Product turning module; 5. Feeding transfer manipulator; 501. Material separation module; 6. Detection belt; 601. First barcode scanning gun; 602. Cover camera; 603. Cover edge detection camera; 604, first long side camera; 605, second long side camera; 606, first short side camera; 607, second short side camera; 608, injection hole detection camera; 609, back detection camera; 7, unloading mechanism; 701, transfer unloading robot; 702, unloading belt; 703, NG pushing assembly; 704, OK unloading robot; 705, OK silo; 706, NG belt; 707, NG unloading robot; 708, NG silo; 709, second barcode scanner. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The embodiment of the present application provides a six-sided detection device and method for a lithium battery cover, which solves the problem in the prior art that after the lithium battery cover is processed, it is necessary to conduct detection to ensure the stable quality of the lithium battery cover. The existing detection automation level of the lithium battery cover is low, and the detection method cannot cover all sides of the lithium battery cover. Therefore, multiple side and multiple classification detections are required, which leads to missed detection or false detection during the detection of the lithium battery cover, increases the influence of human factors in the detection process, and reduces the problem of product quality stability.

[0037] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] The embodiment of the present invention discloses a six-side detection device for a lithium battery cover. Figure 1 To Attachment Figure 3 As shown, it includes a detection device frame 1, which serves as a supporting platform for the entire system and integrates multiple functional modules to facilitate lithium battery cover plate detection. A lifting hoist 101 is provided on the detection device frame 1, and the lifting hoist 101 is used to lift the lithium battery cover plate from the incoming material position of the assembly machine to the subsequent processing station;

[0039] A cleaning and dust removal mechanism 2 and a film pasting mechanism 3 are provided on the detection device frame 1. The cleaning and dust removal mechanism 2 includes a top dust removal component 201 and a bottom dust removal component 202. The cleaning and dust removal mechanism 2 ensures that the surface of the lithium battery cover is clean and dust-free, providing good conditions for subsequent film pasting and detection.

[0040] The device utilizes the cleaning and dust removal mechanism 2 to realize the plasma cleaning process, which mainly relies on the principles of plasma physics and its interaction with the surface of the lithium battery cover;

[0041] The cleaning and dust removal mechanism 2 includes a plasma generator, a gas supply system, a control system, etc. The plasma generator is used to generate high-energy plasma, and the gas supply system is responsible for introducing process gas to the lithium battery cover plate position. These gases are ionized into plasma under the action of the plasma generator. The control system is used to monitor the entire cleaning process to ensure the cleaning effect and safety. The top dust removal component 201 and the bottom dust removal component 202 respectively realize the cleaning of the upper and lower surfaces of the lithium battery cover plate;

[0042] The active ions in the plasma react with the pollutants on the surface of the lithium battery cover, removing the pollutants from the surface through physical bombardment and chemical action. At the same time, the plasma can also activate the surface of the lithium battery cover to increase its surface energy, which is beneficial to subsequent gluing, bonding and other processes.

[0043] The film pasting mechanism 3 includes a glue pasting material feeding module 301, a glue pasting transplanting module 302 and a glue pasting module 303. The film pasting mechanism 3 also includes a glue supply module 304 for supplying materials. The film pasting mechanism 3 realizes automatic film pasting on the back of the lithium battery cover plate, thereby improving the product appearance and protective performance;

[0044] The glue loading module 301 is mainly responsible for taking out the film material to be pasted from the storage device and preparing to transport it to the subsequent processing station. The glue transplanting module 302 is responsible for accurately moving the film material provided by the glue loading module 301 to the specified position of the glue module 303. The glue module 303 is the core part of the film pasting mechanism 3. It is responsible for accurately attaching the film material sent by the transplanting module to the target product. The glue supply module 304 is the auxiliary part of the film pasting mechanism 3. It is responsible for providing a stable and continuous supply of glue to the glue pasting module 303.

[0045] A product flip module 4 is provided on the detection device frame 1. The product flip module 4 is arranged at the tail of the film sticking mechanism 3. The product flip module 4 is used to flip the lithium battery cover so as to detect all its surfaces.

[0046] A feeding transfer robot 5 is provided on the detection device frame 1, and a material dividing module 501 is provided on the feeding transfer robot 5; the feeding transfer robot 5 is arranged at the position of the product turning module 4, and the feeding transfer robot 5 is equipped with a material dividing module 501, which is used to accurately and efficiently transport the turned lithium battery cover plate to the detection belt 6;

[0047] A detection belt 6 is provided on the detection device frame 1, and a camera detection unit is provided on the detection belt 6; the camera detection unit includes a cover camera 602, a cover edge detection camera 603, a first long side camera 604, a second long side camera 605, a first short side camera 606, a second short side camera 607, an injection hole detection camera 608 and a back side detection camera 609. The cover camera 602, the cover edge detection camera 603, the first long side camera 604, the second long side camera 605, the first short side camera 606, the second short side camera 607, the injection hole detection camera 608 and the back side detection camera 609 are arranged on the detection device frame 1. The overall structure of the camera detection unit is compact, and each camera is independent, which is convenient for multi-directional visual detection. At the same time, multiple groups of cameras are easy to inspect and maintain, thereby ensuring the good stability of the camera detection unit.

[0048] The camera detection unit has a compact structure, and adopts a cover camera 602, a cover edge detection camera 603, a first long side camera 604, a second long side camera 605, a first short side camera 606, a second short side camera 607, a liquid injection hole detection camera 608, and a back detection camera 609, so as to facilitate the six-side detection of the lithium battery cover and the detection of the liquid injection hole;

[0049] At the same time, the detection belt 6 also includes a first barcode scanning gun 601 arranged on the detection device frame 1, and the first barcode scanning gun 601 is used to determine product information.

[0050] During the inspection of lithium battery cover, the multi-camera inspection unit uses cameras at different angles and positions to work together to achieve comprehensive inspection of lithium battery cover. During the inspection:

[0051] The cover camera 602 uses a camera at the top or diagonally above to inspect the overall appearance of the lithium battery cover, including whether there are defects such as scratches, pits, protrusions, dirt, etc. on the surface.

[0052] The cover plate edge detection camera 603 is a camera located at the edge of the lithium battery cover plate, and is specifically used to detect the edge part of the cover plate, such as whether there are burrs, deformation and other problems.

[0053] The first long side camera 604, the second long side camera 605, the first short side camera 606 and the second short side camera 607 are respectively set up to detect the two main sides of the lithium battery cover plate. These cameras can ensure the accuracy and consistency of the cover plate in these key dimensions.

[0054] The injection hole detection camera 608 is used to ensure that the position, size, shape, etc. of the hole meet the design requirements.

[0055] The back detection camera 609 is used to detect whether there is any abnormality or defect on the back of the lithium battery cover.

[0056] The inspection process adopts a visual inspection solution design and uses cameras to capture images. Each camera transmits the captured images to a computer or image processing system. The collected images are processed and analyzed using image processing software to extract key information, such as defect features such as size, shape, and position. According to the preset inspection standards and algorithms, the processed images and data are judged to determine whether the lithium battery cover is qualified.

[0057] Ultimately, the test results are fed back to the production line or operators in a timely manner so that defective products can be processed. At the same time, information such as test data, images, and results are stored and managed for subsequent traceability and analysis.

[0058] A material unloading mechanism 7 is provided on the detection device frame 1 , and the material unloading mechanism 7 is arranged at the end of the detection belt 6 .

[0059] The unloading mechanism 7 includes a transfer unloading robot 701 and an unloading belt 702 which are arranged on the detection device frame 1 .

[0060] The unloading mechanism 7 also includes an NG material pushing assembly 703, an OK unloading manipulator 704 and an OK material bin 705 arranged on the detection device frame 1, in the six-sided detection device of the lithium battery cover;

[0061] The unloading mechanism 7 also includes an NG belt 706, an NG unloading manipulator 707 and an NG bin 708. The NG pushing assembly 703 is mainly used to push the unqualified lithium battery cover plate from the unloading belt 702 to the NG belt 706, so that the unqualified lithium battery cover plate is subsequently grabbed by the NG unloading manipulator 707 and put into the NG bin 708;

[0062] NG pusher assembly 703 mainly includes a driver, a push rod, a guide structure, a sensor and a control system. The driver is used to provide the power required for pushing. The push rod directly contacts the lithium battery cover plate, thereby pushing the lithium battery cover plate to the target position. The guide structure ensures that the push rod maintains a stable motion trajectory during the pushing process. The sensor and control system are used to monitor the pushing process to ensure the accuracy and safety of pushing.

[0063] A second barcode scanner 709 is provided above the unloading belt 702 , and the second barcode scanner 709 is fixedly connected to the detection device frame 1 . Through the design of the second barcode scanner 709 , the detection device can reconfirm the product information to ensure that the information is correct.

[0064] The device realizes accurate tracing of product information through the scanning confirmation mechanism of the first barcode scanner 601 and the second barcode scanner 709, and realizes accurate tracking of product information, which is convenient for quality management and subsequent analysis.

[0065] The second aspect of the present invention provides a six-side detection device and method for a lithium battery cover plate, and the use method includes the following steps: step S1, the assembly machine receives materials, and the lifting hoist 101 is used to load the materials, and the lithium battery cover plate is sent to the cleaning and dust removal mechanism 2;

[0066] Step S2, when the lithium battery cover is transported to the position of the cleaning and dust removal mechanism 2, the cleaning and dust removal mechanism 2 performs plasma cleaning and dust removal;

[0067] Step S3, after the lithium battery cover is cleaned and dusted by the cleaning and dust removal mechanism 2, it is transported to the film pasting mechanism 3 through the belt of the cleaning and dust removal mechanism 2, and the film pasting mechanism 3 is used to apply film to the back of the lithium battery cover;

[0068] Step S4, after the film pasting mechanism 3 pasted the film on the back of the lithium battery cover, it was turned over by the product turning module 4, and then transported to the detection belt 6 by the feeding transfer robot 5;

[0069] Step S5, when the lithium battery cover is conveyed on the detection belt 6, the first barcode scanner 601 is used to scan and confirm the information;

[0070] Step S6, after the lithium battery cover is scanned and confirmed, it is transported on the detection belt 6 and inspected on six sides using a camera detection unit;

[0071] Step S7, the lithium battery cover is finally unloaded by the unloading mechanism 7, and the unloading manipulator 701 is used to transport the inspected lithium battery cover to the unloading belt 702;

[0072] Step S8, when the lithium battery cover plate is detected to have no defects, it is unloaded from the OK unloading robot 704 to the OK silo 705. When the lithium battery cover plate is detected to have defects, the lithium battery cover plate is pushed to the NG belt 706 by the NG pushing assembly 703, and transported to the NG silo 708 by the NG unloading robot 707.

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0074] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A six-side detection device for a lithium battery cover, comprising a detection device frame (1), characterized in that: The detection device frame (1) is provided with a lifting and hoisting machine (101); The detection device frame (1) is provided with a cleaning and dust removal mechanism (2) and a film pasting mechanism (3), and the detection device frame (1) is provided with a product turning module (4), and the product turning module (4) is arranged at the tail end of the film pasting mechanism (3); The detection device frame (1) is provided with a material transfer robot (5), and the material transfer robot (5) is arranged at the position of the product turning module (4); The detection device frame (1) is provided with a detection belt (6), and the detection belt (6) is provided with a camera detection unit; A material unloading mechanism (7) is provided on the detection device frame (1), and the material unloading mechanism (7) is arranged at the end of the detection belt (6).

2. A six-side detection device for a lithium battery cover according to claim 1, characterized in that: The cleaning and dust removal mechanism (2) comprises a top dust removal component (201) and a bottom dust removal component (202).

3. A six-side detection device for a lithium battery cover according to claim 1, characterized in that: The film pasting mechanism (3) comprises a glue pasting material feeding module (301), a glue pasting transplanting module (302) and a glue pasting module (303), and the film pasting mechanism (3) further comprises a glue supply module (304) for supplying material.

4. A six-side detection device for a lithium battery cover according to claim 1, characterized in that: The material feeding transfer robot (5) is provided with a material dividing module (501).

5. A six-side detection device for a lithium battery cover according to claim 1, characterized in that: The camera detection unit comprises a cover plate camera (602), a cover plate edge detection camera (603), a first long side camera (604), a second long side camera (605), a first short side camera (606), a second short side camera (607), a liquid injection hole detection camera (608) and a back side detection camera (609); the cover plate camera (602), the cover plate edge detection camera (603), the first long side camera (604), the second long side camera (605), the first short side camera (606), the second short side camera (607), the liquid injection hole detection camera (608) and the back side detection camera (609) are arranged on a detection device frame (1).

6. A six-side detection device for a lithium battery cover according to claim 5, characterized in that: The detection belt (6) also includes a first code scanning gun (601) arranged on the detection device frame (1).

7. A six-side detection device for a lithium battery cover according to claim 1, characterized in that: The unloading mechanism (7) comprises a transfer unloading robot (701) and an unloading belt (702) arranged on the detection device frame (1).

8. A six-side detection device for a lithium battery cover according to claim 7, characterized in that: The unloading mechanism (7) further comprises an NG material pushing assembly (703), an OK unloading manipulator (704) and an OK material bin (705) which are arranged on the detection device frame (1).

9. A six-side detection device for a lithium battery cover according to claim 8, characterized in that: The unloading mechanism (7) further comprises an NG belt (706), an NG unloading robot (707) and an NG silo (708); a second barcode scanning gun (709) is provided above the unloading belt (702); and the second barcode scanning gun (709) is fixedly connected to the detection device frame (1).

10. A method for detecting six sides of a lithium battery cover according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: step S1, receiving materials from an assembly machine, loading the materials through a lifting and hoisting machine (101), and sending the lithium battery cover plate to the position of a cleaning and dust removal mechanism (2); Step S2, when the lithium battery cover is transported to the position of the cleaning and dust removal mechanism (2), the cleaning and dust removal mechanism (2) performs plasma cleaning and dust removal; Step S3, after the lithium battery cover plate is cleaned and dusted by the cleaning and dust removal mechanism (2), it is transported to the position of the film pasting mechanism (3) through the belt of the cleaning and dust removal mechanism (2), and the film pasting mechanism (3) is used to apply a film to the back of the lithium battery cover plate; Step S4, after the film pasting mechanism (3) applies the film to the back of the lithium battery cover plate, it is flipped over by the product flipping module (4), and then transported to the detection belt (6) by the loading transfer robot (5); Step S5, when the lithium battery cover is conveyed on the detection belt (6), the first barcode scanner (601) is used to scan and confirm the information; Step S6, after the lithium battery cover plate is scanned and confirmed, it is transported on the detection belt (6) and subjected to six-side detection using a camera detection unit; Step S7, the lithium battery cover is finally unloaded by the unloading mechanism (7), and the unloading manipulator (701) is used to transport the inspected lithium battery cover to the unloading belt (702); Step S8, when the lithium battery cover is detected to have no defects, it is unloaded from the OK unloading robot (704) to the OK silo (705). When the lithium battery cover is detected to have defects, the lithium battery cover is pushed to the NG belt (706) by the NG pushing assembly (703), and transported to the NG silo (708) by the NG unloading robot (707).

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