AI technology-based positive and negative collector plate visual detection method and detection machine

Abstract

The invention discloses an AI technology-based positive and negative collector plate visual detection method and a detection machine, and relates to the technical field of appearance detection, and the visual detection method comprises the following steps: driving positive and negative collector plates to enter a detection channel through a material plate, and enabling the material plate bearing the positive and negative collector plates to enter the positive collector plate and negative collector plate detection machine; the feeding belt drives a product to pass below the 3D camera, performs 3D flatness detection on the product, drives the product to sequentially rotate to the position of a detection instrument along with rotation of the rotating tray, performs positive large surface detection, back large surface detection and size detection on the positive current collecting tray, and performs inner side edge detection on the negative current collecting tray. A to-be-detected product is placed on the feeding belt, the product is conveyed, the flatness of the product is detected through the D detection camera, the product rotates to the rotating disc detector along with the rotating material disc, the appearance of the product is detected, detection is facilitated, and the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of appearance inspection, and in particular to a positive and negative current collecting plate visual inspection method and inspection machine based on AI technology. Background Art

[0002] During the production process of cylindrical batteries, it is necessary to weld corresponding positive and negative current collector plates on both sides of the positive and negative pole ears of the cylindrical battery cells after they are put into the shell. During the production process, it is usually necessary to inspect the appearance of the positive and negative current collector plates of the batteries to ensure the qualified rate of the production of the positive and negative current collector plates.

[0003] During the appearance inspection of the positive and negative current collecting discs, a conveyor belt is usually used to move the product to be inspected to the position of the inspection camera, and a 3D camera is used to collect product images, and the image images are analyzed and processed. The 3D camera inspection method makes the efficiency and accuracy of the appearance inspection of the positive and negative current collecting discs low. Moreover, when the positive and negative current collecting discs after the inspection are transferred from the conveyor belt to the unloading conveyor belt, due to the friction resistance between the positive and negative current collecting discs and the belt, and the speed difference between the conveyor belt and the unloading conveyor belt, the positive and negative current collecting discs are easily blocked at the connection position between the conveyor belt and the unloading conveyor belt, which is not convenient for the transportation of the product to be inspected and the inspection of the positive and negative current collecting discs. Summary of the invention

[0004] The purpose of the present invention is to provide a positive and negative current collecting plate visual inspection method and inspection machine based on AI technology to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a positive and negative collector plate visual inspection method based on AI technology, comprising the following steps:

[0006] Step 1: The cleaned positive and negative current collecting plates are placed on the material tray respectively, and the positive and negative current collecting plates are driven into the detection channel through the material tray;

[0007] Step 2: The trays carrying the positive and negative current collecting trays enter the positive current collecting tray and negative current collecting tray detection machines respectively through separate lanes;

[0008] Step 3: The product on the tray is grabbed by the loading robot, and the product is placed on the loading belt to transport the product to the rotating tray;

[0009] Step 4: The loading belt drives the product to pass under the 3D camera to perform 3D flatness inspection on the product;

[0010] Step 5: As the rotating material tray rotates, the product is driven to rotate to the position of the detection instrument in turn. The positive current collecting tray detection device performs front large surface detection, back large surface detection and size detection on the positive current collecting tray, and the negative current collecting tray detection device performs inner side detection on the negative current collecting tray;

[0011] Step 6: The inspected products are transferred from the rotating tray to the unloading belt, which drives the products to the unloading manipulator. The unloading manipulator transfers the qualified products to the transition belt, and the qualified products enter the tray.

[0012] Step 7: After the qualified product trays are stacked, they are unloaded through the AGV device. The unqualified products move into the material frame along the unloading belt to complete the inspection of the positive and negative collecting plates.

[0013] Preferably, the 3D camera and detection instrument utilize a combination of AI and visual algorithms to perform graphic analysis on images collected by various methods, and automatically pick out NG products and mark them for identification or discharge them as waste in combination with process parameters and quality standards. The positive collector plate detection device is composed of a 3D camera, three 2D cameras and an industrial computer, and the negative collector plate detection device is composed of a 3D camera, eleven 2D cameras and two industrial computers.

[0014] Preferably, the visual algorithm comprises the following steps:

[0015] Step 1: Collect defective and non-defective images from industrial production sites, and crop and clean the data;

[0016] Step 2: Establish a semi-automatic annotation model based on SAM, adjust the contour shape and size of the defect through the interactive function, generate the required defects, and customize the defect type to complete the semi-automatic annotation;

[0017] Step 3: The annotated industrial defect images are trained using the YOLOv5 model, and the model with the best result is used as the supervised positioning model;

[0018] Step 4: The defect-free images are trained using the semi-supervised MemSeg model, and the model with the best result is used as the semi-supervised positioning model;

[0019] Step 5: Enlarge the labeled defect image by 1 times, cut out the outline, and classify it according to categories. Use the ViT classification model for training, and take the model with the best result as the classification model;

[0020] Step 6: The defect image data that has not been semi-automatically annotated is transferred to the fully automatic annotation tool. The defect image is located and duplicated through the trained YOLOv5 supervised model and MemSeg semi-supervised model. The coordinates of the defect center point are calculated and transmitted to the SAM model. The contour and size are adjusted through the SAM model. Finally, the defect contour is enlarged by 1 times and classified through the ViT classification model to generate labeled defects.

[0021] Preferably, the positive collecting plate detection device and the negative collecting plate detection device detect the product appearance by comparing the product image information obtained by the 3D camera and the detection instrument with the product defect image generated by the visual algorithm, automatically pick out the NG products, mark them for identification, and discharge them.

[0022] A positive and negative collector plate visual inspection machine based on AI technology, comprising:

[0023] Feed channel;

[0024] A detector, the detector being arranged at one end of the feeding channel;

[0025] A detection mechanism, which is arranged inside the detection machine and is used to detect and transport the positive and negative current collecting plates to be detected;

[0026] A pushing mechanism, which is arranged on the detection mechanism and is used to push the product;

[0027] The limiting mechanism is arranged on the pushing mechanism, and is used to limit the movement of the product.

[0028] Preferably, the detection mechanism comprises:

[0029] A feeding robot, wherein the feeding robot is arranged inside the detection machine;

[0030] A feeding belt, one end of which is arranged below one end of the feeding manipulator;

[0031] A 3D inspection camera, which is arranged above the middle of the feeding belt and is used to inspect the flatness of the product being transported on the feeding belt;

[0032] A rotating material tray, wherein the rotating material tray is arranged inside the detection machine, and one side of the upper surface of the rotating material tray is in contact with the other end of the feeding belt;

[0033] A turntable detector, which is arranged on one side of the rotating material tray and is arranged equidistantly in an arc shape;

[0034] A material unloading belt, one end of which is in contact with the other side of the upper surface of the rotating material tray;

[0035] A material unloading manipulator, wherein the material unloading manipulator is arranged above the material unloading belt, and the material unloading manipulator is arranged in a straight line and equidistantly;

[0036] A transition belt is arranged on one side of the unloading belt, and the transition belt corresponds to the position of the unloading robot.

[0037] Preferably, the pushing mechanism comprises:

[0038] A fixed plate, the fixed plate is arranged on the other side of the rotating material plate;

[0039] A mounting frame, the mounting frame is arranged at a middle position below the fixing plate;

[0040] A driving motor, wherein the driving motor is fixedly mounted on the bottom of the inner wall of the mounting frame, and an output end of the driving motor is drivingly connected to the middle of the lower surface of the fixing plate;

[0041] A fixed block, the upper surface of which is fixedly connected to the lower surface of the fixed plate, and the fixed blocks are arranged in an annular array at equal distances;

[0042] A movable block, one end of which is slidably connected to the inner cavity of the fixed block, and the lower surface of the movable block is in contact with the upper surface of the rotating material tray;

[0043] A movable groove, wherein the movable groove is arranged at the bottom of the fixed block;

[0044] A fixed rod, the top end of which is fixedly connected to the lower surface of one end of the movable block, and the fixed rod is slidably connected to the inner cavity of the movable groove;

[0045] A mounting plate, the mounting plate is fixedly connected with the top of the mounting frame, and the mounting plate is arranged below the fixing rod;

[0046] A mounting groove, the mounting groove is arranged on the upper surface of the mounting plate, and the inner cavity of the mounting groove is slidably interlaced with the bottom of the fixing rod;

[0047] The groove is arranged on one side of the mounting groove, and the inner cavity of the groove is slidably and interlacedly connected with the bottom of the fixing rod.

[0048] Preferably, the limiting mechanism comprises:

[0049] A limit block, which is arranged at the other end of the movable block;

[0050] A receiving groove, the receiving groove is arranged on one side of the movable block, and the inner cavity of the receiving groove is slidably interlaced with the limiting block;

[0051] A fixed shaft, wherein the fixed shaft is fixedly interlaced with one end of the limit block, and both ends of the fixed shaft are rotatably interlaced with the inner wall of the accommodating groove;

[0052] A connecting groove, the connecting groove is arranged at the top of the inner wall of the accommodating groove, and the inner cavity of the connecting groove is rotatably interlaced with the top of the fixed shaft;

[0053] A torsion spring is arranged in the inner cavity of the connecting groove, and the torsion spring is movably sleeved with the top of the fixed shaft.

[0054] Preferably, a material tray channel is provided outside the feed channel and the detection machine, a loading tray is provided on the material tray channel, a handling robot is fixedly installed on one side of the inner cavity of the detection machine, stacking modules are provided on both sides of the material tray channel, and a loading robot is provided between the detection machine and the material tray channel.

[0055] Technical effects and advantages of the present invention:

[0056] (1) The present invention grabs the product to be inspected on the loading tray by a loading robot, places the product to be inspected on the loading belt, and conveys the product. The product passes under the D detection camera, and the flatness of the product is detected, and the product to be inspected is driven to fall into the upper surface of the rotating tray in sequence. The product rotates with the rotating tray to the turntable detector, and the appearance of the product is detected. Multiple unloading robots grab the product that has passed the inspection and place the product on the upper surface of the transition belt, which is convenient for detecting the positive and negative current collecting plates, thereby improving the efficiency and accuracy of the inspection;

[0057] (2) After the product is inspected by the present invention, it moves to one end of the unloading belt along with the rotating material tray, and the driving motor is used to drive the fixed plate and the movable block to rotate, so that one of the movable blocks is driven to move to the upper surface of the rotating material tray. The product is arranged between the movable block and the limit block, and one of the products is pushed to quickly enter one end of the unloading belt to prevent the product from being blocked, thereby facilitating the inspection and transportation of the positive and negative collecting plates.

[0058] (3) In the present invention, when the movable block slides into the inner cavity of the fixed block, one end of the fixed block presses the limit block so that the limit block rotates around the fixed axis and enters the inner cavity of the accommodating groove. The fixed axis compresses and deforms the torsion spring. When the movable block moves out of the inner cavity of the fixed block, the elastic action of the torsion spring causes the limit block to rotate out of the inner cavity of the accommodating groove, thereby improving the stability of product transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a schematic diagram of the detection method of the present invention.

[0060] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0061] Figure 3 It is a schematic diagram of the top view of the structure of the detection machine of the present invention.

[0062] Figure 4 It is a structural schematic diagram of the detection machine of the present invention.

[0063] Figure 5 This is a schematic diagram of the top view of the rotating material tray of the present invention.

[0064] Figure 6It is a structural schematic diagram of the rotating material tray of the present invention.

[0065] Figure 7 It is a structural schematic diagram of the fixed disk of the present invention.

[0066] Figure 8 It is a front cross-sectional structural schematic diagram of the fixing disk of the present invention.

[0067] Fig. 9 It is a schematic diagram of the top view of the structure of the mounting plate of the present invention.

[0068] Fig.10 It is a front cross-sectional structural schematic diagram of the movable block of the present invention.

[0069] In the figure: 1. feeding channel; 2. detection machine; 3. detection mechanism; 31. feeding robot; 32. feeding belt; 33. 3D detection camera; 34. rotating material tray; 35. turntable detector; 36. unloading belt; 37. unloading robot; 38. transition belt; 4. pushing mechanism; 41. fixed plate; 42. mounting frame; 43. driving motor; 44. fixed block; 45. movable block; 46. movable slot; 47. fixed rod; 48. mounting plate; 49. mounting slot; 410. groove; 5. limiting mechanism; 51. limiting block; 52. containing slot; 53. fixed shaft; 54. connecting slot; 55. torsion spring; 6. material tray channel; 7. loading tray; 8. handling robot; 9. stacking module; 10. loading robot. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0071] The present invention provides Figure 1 A positive and negative collector plate visual inspection method based on AI technology is shown, comprising the following steps:

[0072] Step 1: The cleaned positive and negative current collecting plates are placed on the material tray respectively, and the positive and negative current collecting plates are driven into the detection channel through the material tray;

[0073] Step 2: The trays carrying the positive and negative current collecting trays enter the positive current collecting tray and negative current collecting tray detection machines respectively through separate lanes;

[0074] Step 3: The product on the tray is grabbed by the loading robot, and the product is placed on the loading belt to transport the product to the rotating tray;

[0075] Step 4: The loading belt drives the product to pass under the 3D camera to perform 3D flatness inspection on the product;

[0076] Step 5: As the rotating material tray rotates, the product is driven to rotate to the position of the detection instrument in turn. The positive current collecting tray detection device performs front large surface detection, back large surface detection and size detection on the positive current collecting tray, and the negative current collecting tray detection device performs inner side detection on the negative current collecting tray;

[0077] Step 6: The inspected products are transferred from the rotating tray to the unloading belt, which drives the products to the unloading manipulator. The unloading manipulator transfers the qualified products to the transition belt, and the qualified products enter the tray.

[0078] Step 7: After the qualified product trays are stacked, they are unloaded through the AGV device. The unqualified products move into the material frame along the unloading belt to complete the inspection of the positive and negative collecting plates.

[0079] 3D cameras and detection instruments use a combination of AI and visual algorithms to perform graphic analysis on images collected in various ways, and automatically pick out NG products and mark them for identification or discard them based on process parameters and quality standards. The positive collector plate detection device consists of a 3D camera, three 2D cameras and an industrial computer, and the negative collector plate detection device consists of a 3D camera, eleven 2D cameras and two industrial computers. The positive collector plate detection device and the negative collector plate detection device compare the product image information obtained by the 3D camera and detection instruments with the product defect images generated by the visual algorithm to inspect the product appearance, automatically pick out NG products, mark them for identification and discard them.

[0080] The vision algorithm consists of the following steps:

[0081] Step 1: Collect defective and non-defective images from industrial production sites, and crop and clean the data;

[0082] Step 2: Establish a semi-automatic annotation model based on SAM, adjust the contour shape and size of the defect through the interactive function, generate the required defects, and customize the defect type to complete the semi-automatic annotation;

[0083] Step 3: The annotated industrial defect images are trained using the YOLOv5 model, and the model with the best result is used as the supervised positioning model;

[0084] Step 4: The defect-free images are trained using the semi-supervised MemSeg model, and the model with the best result is used as the semi-supervised positioning model;

[0085] Step 5: Enlarge the labeled defect image by 1 times, cut out the outline, and classify it according to categories. Use the ViT classification model for training, and take the model with the best result as the classification model;

[0086] Step 6: The defect image data that has not been semi-automatically annotated is transferred to the fully automatic annotation tool. The defect image is located and duplicated through the trained YOLOv5 supervised model and MemSeg semi-supervised model. The coordinates of the defect center point are calculated and transmitted to the SAM model. The contour and size are adjusted through the SAM model. Finally, the defect contour is enlarged by 1 times and classified through the ViT classification model to generate labeled defects.

[0087] A positive and negative collector plate visual inspection machine based on AI technology, such as Figure 2-10 As shown, it includes a feeding channel 1, a detection machine 2, a detection mechanism 3, a pushing mechanism 4 and a limiting mechanism 5. The empty loading tray 7 is moved out from the top of the feeding channel 1, and the full loading tray 7 enters the detection system from the top of the feeding channel 1. The detection machine 2 is arranged at one end of the feeding channel 1, and the detection mechanism 3 is arranged inside the detection machine 2. The positive and negative current collecting plates to be detected enter the insides of the two detection machines 2 respectively, and the appearance of the positive and negative current collecting plates is detected. The detection mechanism 3 is used to detect and transport the positive and negative current collecting plates to be detected. The detection mechanism 3 combines AI technology with traditional visual algorithms to perform graphic analysis on pictures collected in various ways, and automatically picks out NG products and marks them for identification or waste discharge in combination with process parameters and quality standards. The pushing mechanism 4 is arranged on the detection mechanism 3. The pushing mechanism 4 is used to push the product. The pushing mechanism 4 facilitates the pushing of the product to prevent the product from being stuck during transmission. The limiting mechanism 5 is arranged on the pushing mechanism 4. The limiting mechanism 5 is used to limit the movement of the product. The limiting mechanism 5 is used to ensure the stability of the pushed product to prevent the product from falling.

[0088] Specifically, the detection mechanism 3 includes a feeding manipulator 31, a feeding belt 32, a 3D detection camera 33, a rotating material tray 34, a turntable detector 35, a feeding belt 36, a feeding manipulator 37 and a transition belt 38. The feeding manipulator 31 is arranged inside the detection machine 2. The feeding manipulator 31 moves on the X-circle through a linear component, and uses a hydraulic system to suck and grab the product to be detected, and puts the product to be detected on the upper surface of the feeding belt 32. One end of the feeding belt 32 is arranged below one end of the feeding manipulator 31, and the motor and the transmission roller cooperate to drive the feeding manipulator 31 to move. The feeding belt 32 moves to convey the product on the feeding belt 32. The 3D detection camera 33 is arranged at an upper position in the middle of the feeding belt 32. The 3D detection camera 33 is used to detect the flatness of the product transported on the feeding belt 32. The 3D detection camera 33 takes 3D photos of the product on the feeding belt 32 to obtain product pictures and detect the flatness of the product. The rotating material tray 34 is arranged inside the detection machine 2. One side of the upper surface of the rotating material tray 34 is in contact with the other end of the feeding belt 32. The rotating material tray 34 is electrically connected to the external power supply through an external first switch. The feeding belt 32 drives the products to be tested to fall into the upper surface of the rotating material tray 34 in sequence. The products rotate with the rotating material tray 34, driving the products to enter the turntable detector 35. The turntable detector 35 is arranged on one side of the rotating material tray 34. The turntable detector 35 is arranged equidistantly in an arc shape. A plurality of turntable detectors 35 are used to perform front large surface detection, back large surface detection and size detection on the positive collecting disk, and perform inner side detection on the negative collecting disk. One end of the unloading belt 36 is in contact with the other side of the upper surface of the rotating material tray 34. After the detection, the products move to the rotating material tray 34. 4 moves to one end of the unloading belt 36, and the unloading belt 36 drives the product to move. The unloading robot 37 is arranged above the unloading belt 36, and the unloading robots 37 are arranged in a straight line and equidistantly. The products that have passed the inspection are grabbed by multiple unloading robots 37, and the products are placed on the upper surface of the transition belt 38. The transition belt 38 is arranged on one side of the unloading belt 36, and the position of the transition belt 38 corresponds to that of the unloading robot 37. The qualified products are driven to move by the transition belt 38, so that the products enter the tray loading robot 10, and the products are loaded on the tray.

[0089] Furthermore, the pushing mechanism 4 includes a fixed plate 41, a mounting frame 42, a driving motor 43, a fixed block 44, a movable block 45, a movable groove 46, a fixed rod 47, a mounting plate 48, a mounting groove 49 and a groove 410. The fixed plate 41 is arranged on the other side of the rotating material plate 34. The fixed plate 41 is used to install the fixed block 44 and the movable block 45 to drive the fixed block 44 and the movable block 45 to rotate. The mounting frame 42 is arranged in the middle position below the fixed plate 41. The mounting frame 42 is used to install the driving motor 43 and the mounting plate 48. The driving motor 43 is fixedly installed at the bottom of the inner wall of the mounting frame 42. The output end of the driving motor 43 is transmission-connected to the middle of the lower surface of the fixed plate 41. The driving motor 43 is electrically connected to the external power supply through an external second switch. The movable block 45 is connected to the fixed disk 41 at a uniform speed. The upper surface of the fixed block 44 is fixedly connected to the lower surface of the fixed disk 41. The fixed blocks 44 are arranged equidistantly in a circular array. The fixed blocks 44 are arranged in a U shape and are used to install the movable block 45. One end of the movable block 45 is slidably and interlacedly connected with the inner cavity of the fixed block 44. The lower surface of the movable block 45 fits with the upper surface of the rotating material disk 34. The movable block 45 slides in the inner cavity of the fixed block 44, and the movable block 45 is driven by the fixed disk 41 to rotate to the upper surface of the rotating material disk 34, so as to push the product on the rotating material disk 34, so that the product quickly enters one end of the unloading belt 36 to prevent the product from being blocked. The movable groove 46 is arranged at the bottom of the fixed block 44. The movable groove 46 is used The fixed rod 47 slides, the top of the fixed rod 47 is fixedly connected to the lower surface of one end of the movable block 45, the fixed rod 47 is slidably inserted and connected with the inner cavity of the movable groove 46, the fixed rod 47 is used to drive the movable block 45 to move in the horizontal direction, the mounting plate 48 is fixedly inserted and connected with the top of the mounting frame 42, the mounting plate 48 is arranged below the fixed rod 47, the mounting plate 48 is used to install the fixed rod 47, the mounting groove 49 is arranged on the upper surface of the mounting plate 48, the inner cavity of the mounting groove 49 is slidably inserted and connected with the bottom of the fixed rod 47, and the other side of the mounting groove 49 is arranged in an arc shape, with the rotation of the fixed plate 41, the bottom of the fixed rod 47 is driven to slide in the inner cavity of the mounting groove 49, and the groove 410 is arranged on one side of the mounting groove 49 The inner cavity of the groove 410 is slidably interlaced with the bottom of the fixed rod 47, and the groove 410 is arranged in a curve. When the fixed rod 47 slides to one end of the groove 410, the bottom of the fixed rod 47 slides along the inner cavity of the groove 410, and the movable block 45 slides toward the middle and enters the inner cavity of the fixed block 44. When the fixed rod 47 slides out from the other end of the groove 410, the movable block 45 is driven to move out of the inner cavity of the fixed block 44, and the detected product is driven to move to one end of the unloading belt 36 by rotating the material tray 34. The driving motor 43 is used to drive the fixed disk 41 and the movable block 45 to rotate, and one of the movable blocks 45 is driven to move to the upper surface of the rotating material tray 34, and one of the products is pushed to make it quickly enter one end of the unloading belt 36.The fixed rod 47 below one end of the movable block 45 slides into the inner cavity of the groove 410, squeezing the bottom of the fixed rod 47, driving the movable block 45 to slide toward the middle into the inner cavity of the fixed block 44, and when the fixed rod 47 slides out from the other end of the groove 410, the movable block 45 is driven to move out of the inner cavity of the fixed block 44.

[0090] Furthermore, the limiting mechanism 5 includes a limiting block 51, a receiving groove 52, a fixed shaft 53, a connecting groove 54 and a torsion spring 55. The limiting block 51 is arranged at the other end of the movable block 45. The limiting block 51 is arranged in a long strip shape and is arranged vertically with the movable block 45 for limiting one side of the product. The receiving groove 52 is arranged on one side of the movable block 45. The inner cavity of the receiving groove 52 is slidably inserted and connected with the limiting block 51. The receiving groove 52 is used to store the limiting block 51. The fixed shaft 53 is fixedly inserted and connected with one end of the limiting block 51. The two ends of the fixed shaft 53 are rotatably inserted and connected with the inner wall of the receiving groove 52. The fixed shaft 53 is used to rotatably install the limiting block 51 so that the limiting block 51 rotates around the fixed shaft 53. When the movable block 45 slides into the inner cavity of the fixed block 44, the fixed block 44 One end of the torsion spring 55 is pressed against the limit block 51 so that the limit block 51 rotates around the fixed shaft 53 and enters the inner cavity of the accommodating groove 52. The connecting groove 54 is arranged at the top of the inner wall of the accommodating groove 52. The inner cavity of the connecting groove 54 is rotatably and interlacedly connected with the top of the fixed shaft 53. The connecting groove 54 is used to install a torsion spring 55. The torsion spring 55 is arranged in the inner cavity of the connecting groove 54. The torsion spring 55 is movably sleeved with the top of the fixed shaft 53. One end of the torsion spring 55 is fixedly connected to the inner wall of the connecting groove 54, and the other end of the torsion spring 55 is fixedly connected to the outer wall of the top of the fixed shaft 53. When the limit block 51 rotates into the inner cavity of the accommodating groove 52, the fixed shaft 53 compresses and deforms the torsion spring 55. When the movable block 45 moves out of the inner cavity of the fixed block 44, the elastic action of the torsion spring 55 is utilized to make the limit block 51 rotate out of the inner cavity of the accommodating groove 52.

[0091] A tray channel 6 is provided outside the feed channel 1 and the detection machine 2. The tray channel 6 is used for transferring the loading tray 7. A loading tray 7 is provided on the tray channel 6. The loading tray 7 is used to place positive and negative current collecting trays to drive the current collecting trays for transportation. A handling robot 8 is fixedly installed on one side of the inner cavity of the detection machine 2. The empty loading tray 7 is handled by the handling robot 8. Stacking modules 9 are provided on both sides of the tray channel 6. The loading trays 7 are stacked and placed by the stacking modules 9. A loading robot 10 is provided between the detection machine 2 and the tray channel 6. The loading robot 10 is used to grab the products on the transition belt 38 and put the products on the loading tray 7.

[0092] Method of use of the present invention:

[0093] The loading robot 31 grabs the product to be inspected on the loading tray 7, places the product to be inspected on the loading belt 32, and conveys the product. The product passes under the 3D detection camera 33, and the flatness of the product is detected, and the product to be inspected is driven to fall into the upper surface of the rotating material tray 34 in turn. The product rotates with the rotating material tray 34 to the turntable detector 35, and the appearance of the product is detected. After the inspection, the product moves to one end of the unloading belt 36 with the rotating material tray 34, and the driving motor 43 is used to drive the fixed plate 41 and the movable block 45 to rotate, and one of the movable blocks 45 is driven to move to the upper surface of the rotating material tray 34. The product is set between the movable block 45 and the limit block 51, and one of the products is pushed to quickly enter one end of the unloading belt 36 to prevent the product from being blocked. Multiple unloading robots 37 grab the products that have passed the inspection and put the products on the upper surface of the transition belt 38, which is convenient for the inspection of the positive and negative collecting disks and improves the inspection efficiency.

[0094] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positive and negative collector plate visual inspection method based on AI technology, characterized in that: The following steps are involved: Step 1: The cleaned positive and negative current collecting plates are placed on the material tray respectively, and the positive and negative current collecting plates are driven into the detection channel through the material tray; Step 2: The trays carrying the positive and negative current collecting trays enter the positive current collecting tray and negative current collecting tray detection machines respectively through separate lanes; Step 3: The product on the tray is grabbed by the loading robot, and the product is placed on the loading belt to transport the product to the rotating tray; Step 4: The loading belt drives the product to pass under the 3D camera to perform 3D flatness inspection on the product; Step 5: As the rotating material tray rotates, the product is driven to rotate to the position of the detection instrument in turn. The positive current collecting tray detection device performs front large surface detection, back large surface detection and size detection on the positive current collecting tray, and the negative current collecting tray detection device performs inner side detection on the negative current collecting tray; Step 6: The inspected products are transferred from the rotating tray to the unloading belt, which drives the products to the unloading manipulator. The unloading manipulator transfers the qualified products to the transition belt, and the qualified products enter the tray. Step 7: After the qualified product trays are stacked, they are unloaded through the AGV device. The unqualified products move into the material frame along the unloading belt to complete the inspection of the positive and negative collecting plates.

2. According to claim 1, a positive and negative collector plate visual inspection method based on AI technology is characterized in that: The 3D camera and detection instrument utilize a combination of AI and visual algorithms to perform graphic analysis on images collected by various methods, and automatically pick out NG products and mark them for identification or waste discharge based on process parameters and quality standards. The positive collector plate detection device is composed of a 3D camera, three 2D cameras and an industrial computer, and the negative collector plate detection device is composed of a 3D camera, eleven 2D cameras and two industrial computers.

3. According to claim 2, a positive and negative collector plate visual inspection method based on AI technology is characterized in that: The visual algorithm includes the following steps: Step 1: Collect defective and non-defective images from industrial production sites, and crop and clean the data; Step 2: Establish a semi-automatic annotation model based on SAM, adjust the contour shape and size of the defect through the interactive function, generate the required defects, and customize the defect type to complete the semi-automatic annotation; Step 3: The annotated industrial defect images are trained using the YOLOv5 model, and the model with the best result is used as the supervised positioning model; Step 4: The defect-free images are trained using the semi-supervised MemSeg model, and the model with the best result is used as the semi-supervised positioning model; Step 5: Enlarge the labeled defect image by 1 times, cut out the outline, and classify it according to categories. Use the ViT classification model for training, and take the model with the best result as the classification model; Step 6: The defect image data that has not been semi-automatically annotated is transferred to the fully automatic annotation tool. The defect image is located and duplicated through the trained YOLOv5 supervised model and MemSeg semi-supervised model. The coordinates of the defect center point are calculated and transmitted to the SAM model. The contour and size are adjusted through the SAM model. Finally, the defect contour is enlarged by 1 times and classified through the ViT classification model to generate labeled defects.

4. The method for visually inspecting positive and negative current collecting plates based on AI technology according to claim 3 is characterized in that: The positive collector plate detection device and the negative collector plate detection device detect the product appearance by comparing the product image information obtained by the 3D camera and the detection instrument with the product defect image generated by the visual algorithm, automatically pick out NG products, mark them for identification, and discharge them.

5. A positive and negative collector plate visual inspection machine based on AI technology, using the positive and negative collector plate visual inspection method based on AI technology according to any one of claims 1-4, characterized in that: A feed channel (1); A detector (2), wherein the detector (2) is arranged at one end of the feed channel (1); A detection mechanism (3), the detection mechanism (3) being arranged inside the detection machine (2), and the detection mechanism (3) being used to detect and transport the positive and negative current collecting plates to be detected; A pushing mechanism (4), wherein the pushing mechanism (4) is arranged on the detection mechanism (3), and the pushing mechanism (4) is used to push the product; A limiting mechanism (5), wherein the limiting mechanism (5) is arranged on the pushing mechanism (4), and the limiting mechanism (5) is used to limit the movement of the product.

6. The positive and negative collector plate visual inspection machine based on AI technology according to claim 5 is characterized in that: The detection mechanism (3) comprises: A loading robot (31), wherein the loading robot (31) is arranged inside the detection machine (2); A feeding belt (32), one end of which is arranged below one end of a feeding manipulator (31); A 3D detection camera (33), wherein the 3D detection camera (33) is arranged above the middle of the feeding belt (32), and the 3D detection camera (33) is used to detect the flatness of the product transported on the feeding belt (32); A rotating material tray (34), wherein the rotating material tray (34) is arranged inside the detection machine (2), and one side of the upper surface of the rotating material tray (34) is in contact with the other end of the feeding belt (32); A turntable detector (35), the turntable detector (35) is arranged on one side of the rotating material tray (34), and the turntable detector (35) is arranged equidistantly in an arc shape; A material unloading belt (36), one end of which is in contact with the other side of the upper surface of the rotating material tray (34); A material unloading manipulator (37), wherein the material unloading manipulator (37) is arranged above the material unloading belt (36), and the material unloading manipulator (37) is arranged in a straight line and equidistantly; A transition belt (38), wherein the transition belt (38) is arranged on one side of the unloading belt (36), and the position of the transition belt (38) corresponds to that of the unloading robot (37).

7. The positive and negative collector plate visual inspection machine based on AI technology according to claim 6 is characterized in that: The pushing mechanism (4) comprises: A fixed disk (41), wherein the fixed disk (41) is arranged on the other side of the rotating material disk (34); A mounting frame (42), wherein the mounting frame (42) is disposed at a middle position below the fixing plate (41); A driving motor (43), wherein the driving motor (43) is fixedly mounted on the bottom of the inner wall of the mounting frame (42), and the output end of the driving motor (43) is drivingly connected to the middle of the lower surface of the fixing plate (41); A fixed block (44), the upper surface of the fixed block (44) being fixedly connected to the lower surface of the fixed plate (41), and the fixed blocks (44) being arranged in an annular array at equal distances; A movable block (45), one end of which is slidably connected to the inner cavity of the fixed block (44), and the lower surface of the movable block (45) is in contact with the upper surface of the rotating material tray (34); A movable groove (46), wherein the movable groove (46) is arranged at the bottom of the fixed block (44); A fixed rod (47), the top end of which is fixedly connected to the lower surface of one end of the movable block (45), and the fixed rod (47) is slidably connected to the inner cavity of the movable groove (46); A mounting plate (48), the mounting plate (48) being fixedly connected to the top of the mounting frame (42) and interlaced therewith, and the mounting plate (48) being arranged below the fixing rod (47); A mounting groove (49), the mounting groove (49) being arranged on the upper surface of the mounting plate (48), the inner cavity of the mounting groove (49) being slidably interlaced with the bottom of the fixing rod (47); A groove (410) is provided on one side of the mounting groove (49), and an inner cavity of the groove (410) is slidably interlaced with the bottom of the fixing rod (47).

8. The positive and negative collector plate visual inspection machine based on AI technology according to claim 7 is characterized in that: The limiting mechanism (5) comprises: A limit block (51), wherein the limit block (51) is arranged at the other end of the movable block (45); A receiving groove (52), the receiving groove (52) being arranged on one side of the movable block (45), the inner cavity of the receiving groove (52) being slidably interlaced with the limiting block (51); A fixed shaft (53), wherein the fixed shaft (53) is fixedly interpenetratingly connected to one end of the limit block (51), and both ends of the fixed shaft (53) are rotatably interpenetratingly connected to the inner wall of the accommodating groove (52); A connecting groove (54), wherein the connecting groove (54) is arranged at the top of the inner wall of the containing groove (52), and the inner cavity of the connecting groove (54) is rotatably interlaced with the top of the fixed shaft (53); A torsion spring (55), wherein the torsion spring (55) is arranged in the inner cavity of the connecting groove (54), and the torsion spring (55) is movably sleeved with the top of the fixed shaft (53).

9. The positive and negative collector plate visual inspection machine based on AI technology according to claim 5 is characterized in that: A material tray channel (6) is provided outside the feed channel (1) and the detector (2), a loading tray (7) is provided on the material tray channel (6), and a handling robot (8) is fixedly installed on one side of the inner cavity of the detector (2).

10. The positive and negative collector plate visual inspection machine based on AI technology according to claim 9 is characterized in that: Palletizing modules (9) are provided on both sides of the tray channel (6), and a tray loading robot (10) is provided between the detection machine (2) and the tray channel (6).

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