A computer vision defect detection apparatus

Abstract

The utility model discloses a computer vision defect detection device, including, detection box, the detection box both sides reserved opening, the industrial camera is installed to the detection box top inner wall, is used for the shooting of product image, and the front side outer wall of detection box is fixedly connected with the mount, and the mount is equipped with display screen, and the industrial camera is connected to the display screen through the data line, and the front and back two sides inner box wall of detection box is equipped with the strip fluorescent tube, can provide the illumination for the article of detection, the conveyor belt, passes through the opening of detection box both sides and passes through the detection box, separates the component, and separates the component setting to the support both sides of conveyor belt, and the article of detection is finished according to the defect detection and is separated and is arranged, through the setting of separating component, ensures that the article of detection can enter detection box orderly one by one, avoids the adjacent article interval too small or too big, thereby guarantees the accuracy of industrial camera shooting image.

Description

Technical Field

[0001] This utility model relates to the field of article inspection technology, and in particular to a computer vision defect detection device. Background Technology

[0002] In industrial production, product defect detection is a crucial step in ensuring product quality. Traditional defect detection methods mainly rely on manual visual inspection, which is not only inefficient but also prone to missed or false detections due to human fatigue or subjective factors. With the development of computer vision technology, automated defect detection is gradually becoming mainstream. Existing computer vision defect detection devices typically use conveyor belts to transport items to the inspection area, capture images using industrial cameras, and perform defect analysis. However, the placement of items on the conveyor belt is mostly done manually by workers. This can lead to adjacent items being too close together on the conveyor belt, affecting the images captured by the industrial camera when they enter the inspection chamber, thus impacting the accuracy of defect detection. Utility Model Content

[0003] This application provides a computer vision defect detection device that ensures that the items to be detected can enter the detection box one by one in an orderly manner by setting up separate components, avoiding the gap between adjacent items being too small or too large, thereby ensuring the accuracy of images captured by industrial cameras.

[0004] This application provides a computer vision defect detection device, including,

[0005] The inspection box has openings on both sides. An industrial camera is installed on the inner top wall of the inspection box for taking pictures of the product. A mounting bracket is fixedly connected to the outer front wall of the inspection box, and a display screen is mounted on the mounting bracket. The industrial camera is connected to the display screen via a data cable. Strip lamps are installed on the inner front and rear walls of the inspection box to provide illumination for the items being inspected.

[0006] The conveyor belt passes through the openings on both sides of the inspection box.

[0007] The separation assembly, located on both sides of the conveyor belt support, ensures that items to be inspected enter the inspection chamber one by one. The separation assembly includes support base one and support base two; both support base one and support base two are fixedly connected to the conveyor belt support frame. Support base one is located on the inlet side of the inspection chamber, and support base two is located on the outlet side of the inspection chamber. Both support base one and support base two are designed as concave seats. A bottom turntable is rotatably connected to the top of support base one, a bottom block one is fixedly connected to the top of the bottom turntable, and an upper turntable is fixedly connected to the top of bottom block one. The upper part is equipped with several levers. A spring is fixedly connected to the side of the base block one near the support base two, and a connecting rod is fixedly connected to the side of the spring away from the base block one. The top of the support base two is fixedly connected to the base block two. A rotating rod is rotatably connected to the top of the base block two through a rotating shaft. A mounting rod is rotatably connected to the bottom of the rotating rod. A mounting block is fixedly connected to the bottom of the mounting rod. The bottom of the mounting block is in contact with the top of the support base two but not fixed. A slot is opened on the bottom turntable. There are four slots evenly distributed on the bottom turntable with the center of the bottom turntable as the center point. A locking rod is fixedly connected to the bottom side of the connecting rod near the bottom of the bottom turntable.

[0008] The actuation assembly, located on both sides of the conveyor belt support, allows inspected items to be placed separately according to defect detection. The actuation assembly includes a mounting bracket, a servo motor, and a lever. The mounting bracket is fixedly connected to the conveyor belt support, the servo motor is fixedly connected to the mounting bracket, and the lever is fixedly connected to the top of the servo motor's output end. The lever is L-shaped, with its bottom touching but not fixed to the top of the conveyor belt support.

[0009] The connecting rod is further designed in an L-shape, and a connecting rope is fixedly connected between the connecting rod and the mounting block.

[0010] Further, the slot is tilted, and the end of the lever near the slot is set as an inclined surface to match the slot.

[0011] Further, it also includes a control system, which uses a controller that is electrically connected to the industrial camera, display screen, strip light tube and servo motor via wires.

[0012] The further testing chamber also contains a brightness sensor, which is connected to the controller via wires.

[0013] One or more technical solutions provided in this application embodiment have at least the following technical effects or advantages: After the tested item comes out of the test box via the conveyor belt, the rotating rod is pushed to rotate as the conveyor belt is conveyed. After the rotating rod rotates, the connecting rod is rotated via the connecting rope, thereby causing the bottom turntable to lose its limit. The actuating rod moves the bottom turntable through the movement of the item to be tested on the conveyor belt, thereby placing the next item to be tested into the test box. This ensures that the items to be tested can enter the test box one by one in an orderly manner, avoiding the distance between adjacent items being too small or too large, thereby ensuring the accuracy of the images captured by the industrial camera. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the testing device structure for this application. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the testing device structure for this application. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the installation structure of the toggle component in this application;

[0017] Figure 4 This is a schematic diagram of the separate component structure of this application;

[0018] Figure 5 This is a schematic diagram of the bottom turntable structure of this application.

[0019] In the diagram: 10 Conveyor belt, 20 Inspection box, 30 Mounting frame, 40 Material tray, 41 Toggle lever, 42 Servo motor, 43 Mounting bracket, 50 Support base one, 51 Bottom turntable, 52 Bottom block one, 53 Upper turntable, 54 Toggle lever, 55 Connecting rod, 56 Spring, 57 Groove, 58 Clamping rod, 60 Support base two, 61 Bottom block two, 62 Rotating rod, 63 Mounting rod, 64 Mounting block, 70 Connecting rope. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Example 1

[0024] Please see Figure 1-5 A computer vision defect detection device includes a detection box 20 with openings on both sides for mounting a conveyor belt 10. Support legs are mounted on the bottom outer wall of the detection box 20. An industrial camera is mounted on the top inner wall of the detection box 20 for capturing product images. Different cameras with different resolutions, frame rates, and sensor types (such as CCD or CMOS) can be selected according to the detection requirements. For example, a high-resolution CCD camera can be selected for high-precision detection; a high-frame-rate CMOS camera is required for high-speed production lines to ensure the capture of fast-moving product images. A mounting bracket 30 is fixedly connected to the front outer wall of the detection box 20, and a display screen is mounted on the mounting bracket 30. The industrial camera is connected to the display screen via a data cable, allowing the captured images to be transmitted to the display screen for viewing by personnel. Strip lamps are mounted on the front and rear inner walls of the detection box 20 to provide illumination for the inspected items.

[0025] A conveyor belt 10 passes through the inspection box 20, and the items to be inspected are conveyed to the industrial camera inside the inspection box 20 to take pictures. Since the items to be inspected are mostly placed on the conveyor belt 10 manually by the staff, this can cause two adjacent items on the conveyor belt 10 to be too close together. When they enter the inspection box 20, it will affect the image taken by the industrial camera, thus affecting the accuracy of defect detection on the items. Therefore, a separation component is set on the support of the conveyor belt 10 to ensure that the items to be inspected can enter the inspection box 10 one by one.

[0026] The aforementioned conveyor belt 10 can be a belt conveyor, consisting of a drive roller, a redirecting roller, idlers, a conveyor belt, and a drive unit. The drive unit drives the drive roller to rotate, and the drive roller drives the conveyor belt to move through the friction between itself and the conveyor belt. Materials are placed on the conveyor belt and are transported to a designated location as the conveyor belt moves. The conveyor belt 10 can also be selected from other types according to different conveyed materials, conveying environments, and conveying requirements (the specific structure of the direct application of existing products will not be discussed in detail in this application).

[0027] The openings on both sides of the aforementioned testing box 20 are equipped with shielding curtains. A certain distance is reserved between the bottom of the shielding curtains and the top of the conveyor belt 10 to facilitate the passage of items.

[0028] The separation components are arranged on both sides of the support of the conveyor belt 10. The separation components include support seat 50 and support seat 60. Support seat 50 and support seat 60 are both fixedly connected to the support frame of the conveyor belt 10. Support seat 50 is located on the side of the inlet of the detection box 10, and support seat 60 is located on the side of the outlet of the detection box 10. Support seat 50 and support seat 60 are both arranged as concave seats.

[0029] A bottom turntable 51 is rotatably connected to the top of support base 1 50. A bottom block 1 52 is fixedly connected to the top of bottom turntable 51. An upper turntable 53 is fixedly connected to the top of bottom block 1 52. Several levers 54 are mounted on the upper turntable 53. A spring 56 is fixedly connected to the side of bottom block 1 52 near support base 2 60. A connecting rod 55 is fixedly connected to the side of spring 56 away from bottom block 1 52. A bottom block 2 61 is fixedly connected to the top of support base 2 60. A rotating rod 62 is rotatably connected to the top of bottom block 2 61 via a rotating shaft. An installation rod 63 is rotatably connected to the bottom of rotating rod 62. An installation block 64 is fixedly connected to the bottom of installation rod 63. The bottom of installation block 64 is attached to the top of support base 2 60 but not fixed.

[0030] The connecting rod 55 is L-shaped, and a connecting rope 70 (which can be a non-elastic nylon rope) is fixedly connected between the connecting rod 55 and the mounting block 64. After the item comes out of the detection box 20 via the conveyor belt 10, the rotating rod 62 is pushed to rotate by the conveyor belt 10. After the rotating rod 62 rotates, the connecting rod 55 is rotated via the connecting rope 70, thereby causing the bottom turntable 51 to lose its limit. The actuating rod 54 moves the bottom turntable 51 via the upper turntable 53 through the movement of the item to be detected on the conveyor belt 10, thereby placing the next item to be detected into the detection box 10, and so on.

[0031] A slot 57 is opened on the bottom turntable 51, and four slots are evenly distributed on the bottom turntable 51 with the center of the bottom turntable 51 as the center point. A locking rod 58 is fixedly connected to the connecting rod 55 near the bottom side of the bottom turntable 51.

[0032] The slot 57 is inclined, and the end of the locking rod 58 near the slot 57 is set as an inclined surface to match the slot 57. When the rotating rod 62 is not rotating, the locking rod 58 is locked in the slot 57 to restrict the rotation of the bottom turntable 51. Thus, when the item in the detection box 20 has not passed the rotating rod 62, the next item can be limited to the outside of the detection box 20.

[0033] When the connecting rod 55 is pulled and rotated by the rotating rod 62, the locking rod 58 extends out from the locking groove 57, and there is a gap between the locking rod 58 and the bottom turntable 51 to ensure that the bottom turntable 51 can rotate smoothly.

[0034] The stiffness of spring 56 should not be too high. It is necessary to ensure that when the item passes through the rotating rod 62, the rotating rod 62 can smoothly rotate with the connecting rod 55 via the connecting rope 70. Moreover, the rotation of the bottom turntable 51, the rotating rod 62 and the connecting rod 55 should be kept smooth (regular maintenance can be performed) to avoid the item being unable to pass through the rotating rod 62 normally.

[0035] The bottom of the actuating lever 54 is attached to the top of the support of the conveyor belt 10 but not fixed, and it lies horizontally above the conveyor belt 10; the bottom of the rotating lever 62 is attached to the top of the support of the conveyor belt 10 but not fixed, and it lies horizontally above the conveyor belt 10.

[0036] The conveyor belt 10 is also equipped with a toggle assembly for toggle the inspected items into the material box; the toggle assembly includes a mounting bracket 43, a servo motor 42 and a lever 41;

[0037] Mounting bracket 43 is fixedly connected to the bracket of conveyor belt 10, servo motor 42 is fixedly connected to mounting bracket 43, and lever 41 is fixedly connected to the top of the output end of servo motor 42. L-shaped lever 41 is attached to the top of the bracket of conveyor belt 10 but not fixed.

[0038] When the lever 41 is rotated, it can be placed horizontally above the conveyor belt 10 and then push the items on the conveyor belt 10 into the material tray 40, which then slides into the material box. The material tray 40 is fixed on the support of the conveyor belt 10.

[0039] There are at least two sets of actuation components on both sides of the support of the conveyor belt 10, which can separate the inspected items according to the defect detection.

[0040] To achieve control of the toggle component, a control system is designed. The control system can use a controller (programmable logic controller, etc.) as the main control unit. The controller is electrically connected to the industrial camera, display screen, strip light tube and servo motor 42 through wires.

[0041] The detection box 20 is also equipped with a brightness sensor, which is connected to the controller via a wire. When the light inside the detection box is insufficient, the strip lamp can be turned on by the controller.

[0042] In actual operation of the embodiments of this application,

[0043] With the conveyor belt 10 and the testing box 20 in normal working condition, place the items to be tested onto the conveyor belt 10 in sequence (the items to be tested are preferably circular or cylindrical objects).

[0044] First, an item to be inspected is placed at the entrance of the inspection box 20 and directly fed into the inspection box 20 via the conveyor belt 10 (without the need for the lever 54 to be turned, because the first item needs to push the rotating rod 62 to rotate before the lever 54 can be powered to rotate). The industrial camera inspects the surface of the item for defects. After inspection, the item is conveyed out of the inspection box 20 via the conveyor belt 10. As the conveyor belt 10 is conveyed, it pushes the rotating rod 62 to rotate. After the rotating rod 62 rotates, it drives the connecting rod 55 to rotate via the connecting rope 70, thereby causing the bottom turntable 51 to lose its limit. The lever 54 moves the bottom turntable 51 via the upper turntable 53 through the movement of the item to be inspected on the conveyor belt 10, thereby placing the next item to be inspected into the inspection box 20. This cycle continues.

[0045] If there is a defect on the surface of the item, the controller can control the servo motor 42 on one side to move the defective item into another material box after receiving the image information; otherwise, the servo motor 42 on the other side will work.

[0046] The dwell time of items in the inspection box can be adjusted by adjusting the conveyor belt speed, and the items can be monitored by infrared sensors as they enter the inspection box. The infrared sensors are electrically connected to the controller via wires, thereby sending a signal to the controller to activate the industrial camera.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. For those skilled in the art, various modifications and variations are possible with this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A computer vision defect detection device, characterized in that: include, The inspection box has openings on both sides. An industrial camera is installed on the inner top wall of the inspection box for taking pictures of the product. A mounting bracket is fixedly connected to the outer front wall of the inspection box, and a display screen is mounted on the mounting bracket. The industrial camera is connected to the display screen via a data cable. Strip lamps are installed on the inner front and rear walls of the inspection box to provide illumination for the items being inspected. The conveyor belt passes through the openings on both sides of the inspection box. The separation component is located on both sides of the conveyor belt support, which ensures that the items to be tested can enter the testing box one by one; The actuation assembly, located on both sides of the conveyor belt support, allows inspected items to be placed separately according to defect detection criteria.

2. The computer vision defect detection device as described in claim 1, characterized in that: The separation assembly includes a support base one and a support base two; both support base one and support base two are fixedly connected to the support frame of the conveyor belt. Support base one is located on the side of the inlet of the detection box, and support base two is located on the side of the outlet of the detection box. Both support base one and support base two are configured as concave seats. The support base 1 is rotatably connected to a bottom turntable at its top. A bottom block 1 is fixedly connected to the top of the bottom turntable. An upper turntable is fixedly connected to the top of the bottom block 1. Several actuating levers are mounted on the upper turntable. A spring is fixedly connected to the side of the bottom block 1 closest to the support base 2. A connecting rod is fixedly connected to the side of the spring away from the bottom block 1. The support base 2 is fixedly connected to a bottom block 2 at its top. A rotating rod is rotatably connected to the top of the bottom block 2 via a rotating shaft. An installation rod is rotatably connected to the bottom of the rotating rod. An installation block is fixedly connected to the bottom of the installation rod. The bottom of the installation block is attached to the top of the support base 2 but not fixed.

3. The computer vision defect detection device as described in claim 2, characterized in that: The connecting rod is L-shaped, and a connecting rope is fixedly connected between the connecting rod and the mounting block.

4. The computer vision defect detection device as described in claim 2, characterized in that: The bottom turntable has a slot with four slots evenly distributed around the center of the turntable. A locking rod is fixedly connected to the bottom side of the connecting rod near the bottom of the turntable. The slot is inclined, and the end of the locking rod near the slot is set as an inclined surface to match the slot.

5. The computer vision defect detection device as described in claim 1, characterized in that: The actuation assembly includes a mounting bracket, a servo motor, and a lever; The mounting bracket is fixedly connected to the support of the conveyor belt, the servo motor is fixedly connected to the mounting bracket, and the lever is fixedly connected to the top of the output end of the servo motor. The lever is set in an L-shape, and its bottom is attached to the top of the support of the conveyor belt but not fixed.

6. The computer vision defect detection device as described in claim 1, characterized in that: It also includes a control system, which uses a controller that is electrically connected to the industrial camera, display screen, strip light tube and servo motor via wires.

7. The computer vision defect detection device as described in claim 1, characterized in that: The detection box is also equipped with a brightness sensor, which is connected to the controller via a wire.

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