A high-speed power lug CCD vision detection equipment

Abstract

The utility model discloses a kind of high-speed power lugs CCD vision detection equipment, including for power lug non-stop moving linear type transverse moving material feeding mechanism, multiple CCD vision detection stations being sequentially arranged along the conveying direction of linear type transverse moving material feeding mechanism, CCD vision detection mechanism, flying control system, AI image processing system, sorting mechanism and discharging mechanism, the flying control system is electrically connected with linear type transverse moving material feeding mechanism, CCD vision detection mechanism, the AI image processing system is connected with CCD vision detection mechanism communication.The linear type transverse moving material feeding is basically non-stop logic, saves motion time, high-speed motion, greatly improve the efficiency of machine.Multiple stations are detected, and several different types of detection lens are photographed, AI is added on software algorithm, realize self-learning comparison, solve the problem of different batches incoming material chromatic aberration, improve the comprehensive ability of distinguishing qualified product and unqualified product.

Description

Technical Field

[0001] This utility model relates to the technical field of power electrode detection equipment, specifically a high-speed power electrode CCD vision detection device. Background Technology

[0002] In the manufacturing of power electrode tabs, appearance defects (such as scratches, stains, and dents) and dimensional accuracy are key indicators affecting battery assembly quality and performance, requiring automated screening using CCD vision inspection equipment. However, existing older inspection equipment has significant technical shortcomings, making it difficult to meet the needs of large-scale production: First, the material feeding method mostly uses intermittent conveying, resulting in a high proportion of downtime during movement, leading to low overall inspection efficiency and an inability to match the pace of high-speed production; Second, the inspection system configuration is rudimentary, mostly single-station, single-lens inspection, with limited lighting methods and no dynamic imaging capabilities, making it impossible to collect images of power electrode tabs under different lighting conditions. Furthermore, it lacks AI-assisted processing technology, resulting in weak ability to distinguish between appearance defects and a high false positive rate. Especially when there are color differences between different batches of incoming materials, the inspection accuracy drops significantly or even fails. Utility Model Content

[0003] In order to overcome the shortcomings of existing technical solutions, this utility model provides a high-speed power electrode CCD vision inspection device, which can effectively solve the problems mentioned in the background technology.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A high-speed CCD vision inspection device for powered electrode tabs includes a linear transverse conveying mechanism for continuous movement of the powered electrode tabs, multiple CCD vision inspection stations arranged sequentially along the conveying direction of the linear transverse conveying mechanism, a CCD vision inspection mechanism, a camera control system, an AI image processing system, a sorting mechanism, and a feeding mechanism. The camera control system is electrically connected to the linear transverse conveying mechanism and the CCD vision inspection mechanism, and the AI ​​image processing system is communicatively connected to the CCD vision inspection mechanism.

[0006] The CCD vision inspection mechanism is suspended above multiple CCD vision inspection stations. At least one CCD camera is configured for each inspection station. The CCD camera is equipped with at least two different types of light sources and at least two different focal lengths or angles of view lenses, which are used to collect images of the power electrode under different lighting conditions at the corresponding station.

[0007] The sorting mechanism is located at the end of the linear transverse material conveying mechanism, and the unloading mechanism is located on one side of the sorting mechanism. The sorting mechanism includes an unloading robot, a defective product box, and two sets of stacking boxes that can move horizontally. The unloading mechanism includes two continuously receiving pallet boxes and a three-axis robot located above the pallet boxes.

[0008] As a further description of the above technical solution, the linear transverse material feeding mechanism includes multiple independently driven transverse manipulators arranged sequentially along the linear conveying direction. Each transverse manipulator independently grips and transfers the power electrode tab, enabling the power electrode tab to be moved stepwise between adjacent detection stations.

[0009] As a further description of the above technical solution, the CCD vision inspection station includes a first station for inspecting the front dimensions and appearance of the power electrode tab, a second station for dynamically inspecting the front appearance of the power electrode tab under various preset lighting conditions, a flipping robot for flipping the power electrode tab, a third station for inspecting the back dimensions and appearance of the power electrode tab, and a fourth station for dynamically inspecting the back appearance of the power electrode tab under various preset lighting conditions.

[0010] As a further description of the above technical solution, the unloading mechanism also includes a first horizontal moving platform, which is installed at the bottom of the two pallet boxes. The horizontal moving platform is driven by a drive device to move one of the pallet boxes to the stacking operation position below the three-axis robot to receive stacking, while moving the other pallet box to the transfer station.

[0011] As a further description of the above technical solution, the sorting mechanism also includes a second horizontal moving platform, which is connected to the stacking box, and the stacking box moves horizontally back and forth via the second horizontal moving platform.

[0012] As a further description of the above technical solution, the three-axis robot includes a Y-axis robot, an X-axis robot, and a Z-axis robot.

[0013] As a further description of the above technical solution, the number of power electrode tabs loaded in each stacking box is 40-50 pieces.

[0014] As a further description of the above technical solution, the starting end of the linear transverse material feeding mechanism is provided with a power electrode positioning and receiving platform.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model discloses a high-speed powered electrode CCD vision inspection device, which has at least one of the following beneficial effects during use:

[0017] Firstly, it adopts a linear, non-stop lateral material feeding mechanism, coupled with multiple independently driven lateral moving robots to achieve step-by-step transfer, achieving a detection efficiency three times that of older equipment, significantly saving motion time and adapting to high-speed production rhythms. Secondly, through the division of labor and cooperation of four detection stations, combined with two types of lenses, two lighting methods, and aerial photography control, and relying on the deep learning and adaptive adjustment capabilities of the AI ​​image processing system, it can automatically handle color differences between different batches of incoming materials, accurately extract the size and defect features of the power tabs, significantly improve the ability to distinguish between qualified and unqualified products, and reduce the false judgment rate. Thirdly, the sorting mechanism uses two sets of stacking boxes for cyclic loading (40-50 pieces per assembly), and the unloading mechanism uses two pallets that move alternately on a horizontal platform, combined with the orderly stacking of three-axis robots, to achieve continuous material receiving without interruption and ensure production continuity. Fourthly, the starting end is equipped with a positioning receiving platform with adjustable material feeding speed, which can adapt to different specifications of power tabs, has strong versatility, and effectively improves overall production yield and operational efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first overall structure of a high-speed power electrode CCD vision inspection device according to the present invention;

[0019] Figure 2 This is a schematic diagram of the second overall structure of a high-speed power electrode CCD vision inspection device according to the present invention;

[0020] Figure 3 This is a schematic diagram of the first part of the structure of a high-speed power electrode CCD vision inspection device according to the present invention;

[0021] Figure 4 This is a schematic diagram of the second part of the structure of a high-speed power electrode CCD vision inspection device according to the present invention;

[0022] Figure 5 This is a schematic diagram of the third part of a high-speed power electrode CCD vision inspection device according to the present invention.

[0023] Numbering on the map:

[0024] 1. Linear transverse material feeding mechanism; 101. Transverse manipulator; 102. Powered electrode positioning receiving platform; 2. CCD vision inspection station; 201. CCD vision inspection mechanism; 202. First station; 203. Second station; 204. Third station; 205. Fourth station; 3. Sorting mechanism; 301. Unloading manipulator; 302. Non-conforming product box; 303. Stacking box; 304. Second horizontal moving platform; 4. Unloading mechanism; 401. Three-axis manipulator; 402. Pallet box; 403. First horizontal moving platform; 404. Y-axis manipulator; 405. Z-axis manipulator; 406. X-axis manipulator. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-5 As shown, this utility model provides a high-speed CCD vision inspection device for powered electrode tabs, including a linear transverse conveying mechanism 1 for continuous movement of the powered electrode tabs, multiple CCD vision inspection stations 2 arranged sequentially along the conveying direction of the linear transverse conveying mechanism 1, a CCD vision inspection mechanism 201, a camera control system, an AI image processing system, a sorting mechanism 3, and a feeding mechanism 4. The camera control system is electrically connected to the linear transverse conveying mechanism 1 and the CCD vision inspection mechanism 201, and the AI ​​image processing system is communicatively connected to the CCD vision inspection mechanism.

[0027] This embodiment employs a linear transverse material feeding system with virtually no interruptions, saving movement time and enabling high-speed movement, significantly increasing machine efficiency to approximately three times that of older equipment. Simultaneously, it utilizes multi-station inspection, mounting multiple different types of inspection lenses for photography, employing various lighting methods, and using a "flying shot" approach to capture multiple images under different lighting conditions for comparison. Furthermore, AI has been added to the software algorithm for self-learning and comparison, resolving the problem of color differences between different batches of incoming materials and improving the overall ability to distinguish between qualified and unqualified products. No other objects should be placed within 40mm below the inspected power electrode product, and the receiving platform for the inspected power electrode product must always be smaller than the inspected power electrode.

[0028] The CCD vision inspection mechanism is suspended above multiple CCD vision inspection stations 2. At least one CCD camera is configured for each inspection station. The CCD camera is equipped with at least two different types of light sources and at least two different focal lengths or angles of view lenses, which are used to collect images of the power electrode under different lighting conditions at the corresponding station.

[0029] The CCD vision inspection logic involves using four workstations for inspection, four lenses of two different types for taking pictures, two different lighting methods for illumination, and a flying-shot material feeding logic to take multiple pictures under different lighting conditions within the lens range for comparison. At the same time, AI was added to the software algorithm to achieve self-learning and comparison, which solved the problem of color difference between different batches of incoming materials and improved the overall ability to distinguish between qualified and unqualified products.

[0030] The sorting mechanism 3 is located at the end of the linear transverse material conveying mechanism 1, and the unloading mechanism 4 is located on one side of the sorting mechanism 3. The sorting mechanism 3 includes an unloading robot 301, a defective product box 302, and two sets of stacking boxes 303 that can move horizontally. The unloading mechanism 4 includes two continuously receiving pallet boxes 402 and a three-axis robot 401 located above the pallet boxes 402.

[0031] The stacking box 303 has two sets, each equipped with a robotic arm that circulates back and forth for loading. Each set contains 40 or 50 power electrode tabs, which are then neatly arranged. After loading, the stacking box is moved aside so that another set can continue loading. The unloading mechanism 4 hands pick up the qualified power electrode tabs and place them onto the left and right transverse qualified material boxes (each small material box contains 40-50 power electrode tabs as a stack). The left and right small material boxes are interchanged. Then, the X, Y, and Z axis robotic arms 405 work together, with the Z-axis robotic arm gripping and rotating to pick up the stacked power electrode tabs and place them in an orderly manner onto the receiving tray material box.

[0032] Furthermore, the linear transverse conveying mechanism 1 includes multiple independently driven transverse manipulators 101 arranged sequentially along the linear conveying direction. Each transverse manipulator 101 independently clamps and transfers the power electrode tab, enabling the power electrode tab to be moved stepwise between adjacent detection stations.

[0033] It also supports detection modes that include dynamic image acquisition (dynamic inspection) during the transfer process and static image acquisition (static inspection) during a short stop at a specific workstation.

[0034] After the power electrode tabs are received and positioned, the loading and transfer robot moves the positioned power electrode tabs to the front preparation station for inspection.

[0035] Furthermore, the CCD vision inspection station 2 includes a first station 202 for inspecting the front dimensions and appearance of the power electrode tab, a second station 203 for dynamically inspecting the front appearance of the power electrode tab under various preset lighting conditions, a flipping robot for flipping the power electrode tab, a third station 204 for inspecting the back dimensions and appearance of the power electrode tab, and a fourth station 205 for dynamically inspecting the back appearance of the power electrode tab under various preset lighting conditions.

[0036] The CCD vision inspection logic involves using four workstations for inspection, four lenses of two different types for taking pictures, two different lighting methods for illumination, and a flying-shot material feeding logic to take multiple pictures under different lighting conditions within the lens range for comparison. At the same time, AI has been added to the software algorithm to achieve self-learning and comparison, which solves the problem of color difference between different batches of incoming materials and improves the overall ability to distinguish between qualified and unqualified products.

[0037] The lateral robot arm 101 below the CCD vision imaging mechanism moves back and forth, transferring the power electrode from the preparation station to the first station 202 – statically inspecting the front dimensions and appearance of the power electrode. The lateral robot arm 101 below the imaging mechanism moves back and forth, transferring the power electrode from the imaging station to the second station 203 – dynamically inspecting the appearance of the front of the power electrode under different lighting conditions. The lateral robot arm 101 below the imaging mechanism moves the power electrode completed at the CCD imaging station to the power electrode flipping mechanism for flipping. The lateral robot arm 101 below the imaging mechanism moves back and forth, moving the flipped power electrode to the third station 204 – statically inspecting the reverse dimensions and appearance of the power electrode. The lateral robot arm 101 below the imaging mechanism moves back and forth, transferring the power electrode from the third station of the imaging mechanism to the fourth station 205 – dynamically inspecting the appearance of the reverse side of the power electrode under different lighting conditions.

[0038] Furthermore, the unloading mechanism 4 also includes a first horizontal moving platform 403, which is installed at the bottom of the two pallet boxes 402. The horizontal moving platform is driven by a drive device to move one of the pallet boxes 402 to the stacking operation position below the three-axis robot 401 to receive stacking, while moving the other pallet box 402 to the transfer station.

[0039] The horizontal moving robot 101 below the camera moves back and forth, transferring the power electrode to the unloading station in preparation for unloading. The unloading robot moves the product out, and the software algorithm will make a corresponding judgment, whether the unloaded product is qualified or unqualified. If it is qualified, it is placed in the stacking box 303; if it is unqualified, it is placed in the unqualified product box.

[0040] Furthermore, the sorting mechanism 3 also includes a second horizontal moving platform 304, which is connected to the stacking box 303, and the stacking box 303 moves horizontally back and forth via the second horizontal moving platform 304.

[0041] When the pallet box 402 at the stacking operation position is full or reaches a preset quantity, the horizontal moving platform swaps the positions of the two pallet boxes 402, moving the full pallet box 402 to the transfer station, while the empty pallet box 402 is moved to the stacking operation position to continue receiving. The stacking boxes 303 are arranged in groups and equipped with robotic arms underneath, cyclically loading materials. Each group loads 40 or 50 power tabs, tidying them up, and after loading, they are moved aside for another group to load.

[0042] To further clarify, the three-axis robotic arms include a Y-axis robotic arm 404, an X-axis robotic arm 406, and a Z-axis robotic arm 405.

[0043] The XYZ axis robotic arm 405 linkage uses the Z-axis mechanism to grip and remove the rotating power electrode tabs and place them into the tray material boxes in sequence. The two tray material boxes are continuously loaded and unloaded, and after loading, they are withdrawn and transferred in sequence.

[0044] Furthermore, each of the stacking boxes 303 has 40-50 power electrode tabs loaded.

[0045] Once a predetermined number of power electrode tabs are loaded into one set of stacking boxes 303, the three-axis robot 401 picks up the qualified products one by one and performs an orderly stacking operation according to a preset stacking rule. Two pallet boxes 402 are located below the stacking operation area of ​​the three-axis robot 401, and a drive device is provided at their bottom. The pallet boxes 402 are used to receive the power electrode tabs after they have been stacked by the three-axis robot 401. The drive device controls the pallet boxes 402 to move alternately to the stacking operation position. When one pallet box 402 receives the stacked products, the other pallet box 402 can be moved out for transfer, realizing continuous material receiving.

[0046] Furthermore, the starting end of the linear transverse material feeding mechanism 1 is provided with a power electrode positioning receiving platform 102.

[0047] The CCD vision inspection mechanism is equipped with at least two types of light sources selected from coaxial light sources, ring light sources, bar light sources, backlight sources, and dome light sources, and these are used in combination to meet the lighting needs of different workstations and different inspection features (such as size, scratches, stains, bumps, etc.).

[0048] The moving speed parameter of the linear transverse feeding mechanism 1 is adjustable to adapt to the detection requirements of the power electrode tabs of different specifications (size, weight).

[0049] The flying camera control system is electrically connected to the linear transverse material feeding mechanism 1 and the CCD vision inspection mechanism 201. It is used to control the conveying mechanism to maintain continuous movement within the detection field of view of the CCD vision inspection mechanism, and synchronously trigger the CCD vision inspection mechanism to acquire multiple images under different lighting conditions and / or different angles during the movement.

[0050] The AI ​​image processing system is connected to the CCD vision inspection agency to receive and process the image data it collects. The AI ​​image processing system has a built-in deep learning algorithm to establish feature models of qualified and unqualified products, identify and judge the power tabs currently being inspected, and can adaptively adjust image processing parameters and judgment thresholds based on the color difference characteristics of different batches of incoming materials.

[0051] The sorting mechanism 3 is located at the end of the linear transverse conveying mechanism 1 and is used to receive the power electrode tabs determined by the AI ​​image processing system. The sorting mechanism 3 has a switchable path execution mechanism, which is used to transfer qualified products to the qualified product stacking box 303 mechanism and transfer unqualified products to the unqualified product box 302 according to the determination result.

[0052] The AI ​​image processing system includes: an image preprocessing module for performing noise reduction and contrast enhancement preprocessing operations on the received image data; a feature extraction module for extracting the size, shape, and surface defect features of the power electrode tab from the preprocessed image; a deep learning comparison module for storing and updating feature models of qualified and unqualified products trained based on historical data, and performing real-time comparison analysis between the currently extracted features and the models to make a qualification judgment; and an adaptive adjustment module for automatically adjusting the processing parameters of the image preprocessing module and the feature extraction module, as well as the judgment threshold of the deep learning comparison module, according to the color and texture feature changes of the current batch of incoming materials.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-speed powered electrode CCD vision inspection device, characterized in that: It includes a linear transverse material feeding mechanism for the continuous movement of the power electrode tabs, multiple CCD vision inspection stations arranged sequentially along the conveying direction of the linear transverse material feeding mechanism, a CCD vision inspection mechanism, a flying camera control system, an AI image processing system, a sorting mechanism, and a feeding mechanism. The flying camera control system is electrically connected to the linear transverse material feeding mechanism and the CCD vision inspection mechanism, and the AI ​​image processing system is communicatively connected to the CCD vision inspection mechanism. The CCD vision inspection mechanism is suspended above multiple CCD vision inspection stations. At least one CCD camera is configured for each inspection station. The CCD camera is equipped with at least two different types of light sources and at least two different focal lengths or angles of view lenses, which are used to collect images of the power electrode under different lighting conditions at the corresponding station. The sorting mechanism is located at the end of the linear transverse material conveying mechanism, and the unloading mechanism is located on one side of the sorting mechanism. The sorting mechanism includes an unloading robot, a defective product box, and two sets of stacking boxes that can move horizontally. The unloading mechanism includes two continuously receiving pallet boxes and a three-axis robot located above the pallet boxes.

2. The high-speed dynamic electrode CCD vision inspection device according to claim 1, characterized in that: The linear transverse material feeding mechanism includes multiple independently driven transverse manipulators arranged sequentially along the linear conveying direction. Each transverse manipulator independently grips and transfers the power electrode tab, enabling the power electrode tab to be moved stepwise between adjacent detection stations.

3. The high-speed dynamic electrode CCD vision inspection device according to claim 1, characterized in that: The CCD vision inspection station includes a first station for inspecting the front dimensions and appearance of the power electrode tab, a second station for dynamically inspecting the front appearance of the power electrode tab under various preset lighting conditions, a flipping robot for flipping the power electrode tab, a third station for inspecting the back dimensions and appearance of the power electrode tab, and a fourth station for dynamically inspecting the back appearance of the power electrode tab under various preset lighting conditions.

4. The high-speed dynamic electrode CCD vision inspection device according to claim 1, characterized in that: The unloading mechanism also includes a first horizontal moving platform, which is installed at the bottom of two pallet boxes. The horizontal moving platform is driven by a drive device to move one of the pallet boxes to a stacking position below the three-axis robot to receive stacking, while moving the other pallet box to a transfer station.

5. The high-speed dynamic electrode CCD vision inspection device according to claim 1, characterized in that: The sorting mechanism also includes a second horizontal moving platform, which is connected to the stacking box, and the stacking box moves horizontally back and forth via the second horizontal moving platform.

6. The high-speed dynamic electrode CCD vision inspection device according to claim 1, characterized in that: The three-axis robotic arm includes a Y-axis robotic arm, an X-axis robotic arm, and a Z-axis robotic arm.

7. The high-speed dynamic electrode CCD vision inspection device according to claim 1, characterized in that: Each stack box is loaded with 40-50 power tabs.

8. The high-speed dynamic electrode CCD vision inspection device according to claim 1, characterized in that: The starting end of the linear transverse material feeding mechanism is equipped with a power electrode positioning and receiving platform.

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