Intelligent classification and collection system for nondestructive testing key markers

Abstract

The application provides a nondestructive testing key marker intelligent classification and collection system, which comprises a workbench, a vibrating disc, a conveying device, a lead character recognition device and a classification and collection device arranged on the top of the workbench, a limiting device arranged in the inner cavity of the vibrating disc, the top of the vibrating disc being provided with the conveying device to connect the vibrating disc with the lead character recognition device, the lead character recognition device comprising an image recognition device and a rotating placement device, the classification and collection device being arranged below the image recognition device, and the classification and collection device comprising a second photoelectric switch, an opening and closing door and a lead character collection box. The nondestructive testing key marker intelligent classification and collection system takes image recognition and other digital information technologies, sensor technologies and single-chip microcomputer technologies as cores, and takes various modular mechanical systems as supplements, so that the lead characters sequentially pass through four basic steps of separation, conveying, recognition and classification to realize high-efficiency and high-precision classification and provide convenience for radiographic testing personnel.

Description

Technical Field

[0001] This invention relates to the field of automatic classification of complex small objects, and in particular to an intelligent classification and collection system for key markers used in non-destructive testing. Background Technology

[0002] Radiographic testing is an important category of nondestructive testing. Based on the different absorption or scattering characteristics of X-rays produced by the workpiece due to variations in composition, density, and thickness, it allows for the assessment of the workpiece's internal quality, dimensions, and characteristics. Currently, radiographic testing technology is widely used in industries such as aerospace, shipbuilding, weaponry, and electronics.

[0003] During radiographic testing, a type of marker—metallic lead type—made of high-density, non-radioactive metal, is used. These type markers are typically about 10mm x 3mm in size. During the radiographic testing process, the lead type is attached to the outside of the film dark bag using adhesive or other attachments. After the radiographic testing is completed, the metallic lead type attached to the dark bag needs to be peeled off, resulting in a large number of disordered lead type markers. The recycling and sorting of these markers is usually done manually by operators, which is not only inefficient and prolongs the work time, but also increases the workload for personnel and raises labor costs for the company. Summary of the Invention

[0004] Based on this, the present invention proposes an intelligent classification and collection system for key markers in non-destructive testing, which enables rapid and error-free collection of lead type, reduces the labor intensity of X-ray inspection personnel, and improves work efficiency.

[0005] A non-destructive testing intelligent classification and collection system for key markers includes a workbench. The top of the workbench is equipped with a vibratory feeder, a lead type recognition device, and a classification and collection device. A limit device is installed in the inner cavity of the vibratory feeder. A conveying device is installed at the top of the vibratory feeder, and the conveying device connects the vibratory feeder and the lead type recognition device. The lead type recognition device includes an image recognition device and a rotating placement device. The classification and collection device is located below the image recognition device.

[0006] Furthermore, the limiting device includes a baffle, one side of which is fixedly connected to a positioning pin with an upper thread, and a rectangular groove is provided on the vibrating plate, with the positioning pin installed in the rectangular groove.

[0007] Furthermore, a first mounting groove is provided on the top of the vibratory feeder, and a conveying device is fixedly connected to one side of the inner wall of the cavity of the first mounting groove.

[0008] Furthermore, the conveying device includes a conveyor belt and a first photoelectric switch disposed below the conveyor belt.

[0009] Furthermore, the first photoelectric switch includes a first photoelectric transmitter and a first photoelectric receiver. The first photoelectric transmitter is installed below the end of the conveyor belt, and the first photoelectric receiver is installed on a support column. The first photoelectric transmitter and the photoelectric receiver are in a straight line. The first photoelectric switch controls the power supply of the vibratory feeder and the conveyor belt.

[0010] Furthermore, the rotating storage device includes a base, a second mounting groove is provided on the top of the vibrating plate, a support column is installed in the second mounting groove, a rotating bracket is fixed on the support column, a flip motor is installed at one end of the rotating bracket, a transparent storage platform is fixed on the flip motor, and baffles are provided on both sides of the transparent storage platform.

[0011] Furthermore, the image recognition device has a camera bracket, one end of which is fixed to a support column, and the other end is equipped with a camera and a lighting lamp.

[0012] Furthermore, the sorting and collection device is equipped with a second photoelectric switch and an opening and closing door. The second photoelectric switch includes a second photoelectric transmitter and a second photoelectric receiver disposed opposite to each other on both sides inside the sorting and collection device. The second photoelectric receiver is disposed on the opening and closing door. A lead type collection box is installed on the outside of the sorting and collection device.

[0013] The technical effects and advantages of the intelligent classification and collection system for key non-destructive testing markers of the present invention are as follows: (1) The vibratory feeder designed in this invention uses a limiting device and a positioning pin to improve the uniformity of the posture when the lead type is discharged, avoid the accumulation and blockage of the lead type during discharge, and thus improve the overall recognition efficiency and classification quality. (2) The present invention utilizes the cooperation of mounting groove and positioning pin to improve the flexibility and convenience of baffle position adjustment, thereby improving the overall practicality; (3) This invention takes digital information technology such as image recognition as the core and various modular mechanical systems as auxiliary. Unlike traditional physical classification methods, it has higher classification accuracy, good stability and adaptability. It can be applied to classification objects with different features by modifying the program, thereby achieving the purpose of high accuracy, high efficiency, modularity and low coupling. (4) By utilizing the combination of two cameras and a transparent platform, the present invention can simultaneously identify both sides of the lead type, thus avoiding the impact of the uncertainties in the placement of the lead type on the stable operation of the core step of image recognition. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the intelligent classification and collection system for key non-destructive testing markers of the present invention; Figure 2This is a schematic diagram of the internal structure of the vibratory feeder in this invention; Figure 3 This is a schematic diagram of the transmission device and the lead type recognition device in this invention; Figure 4 This is a schematic diagram of the image recognition device and rotating object placement device of the present invention; Figure 5 This is a schematic cross-sectional view of the internal structure of the sorting and collecting device of the present invention; In the diagram: 1. Workbench; 2. Vibratory feeder; 3. Lead type recognition device; 4. Sorting and collecting device; 401. Second photoelectric transmitter; 402. Opening and closing door; 403. Second photoelectric receiver; 404. Lead type collection box; 5. Limiting device; 501. Baffle; 502. Positioning pin; 6. Conveying device; 601. Conveyor belt; 602. First photoelectric transmitter; 603. First photoelectric receiver; 7. Image recognition device; 701. Camera bracket; 702. Camera; 703. Lighting lamp; 8. Rotating storage device; 801. Base; 802. Support column; 803. Rotating bracket; 804. Tilting motor; 805. Transparent storage platform. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1-5 The present invention provides an intelligent classification and collection system for key non-destructive testing objects, including a workbench (1). The workbench (1) is characterized in that a vibrating plate (2), a lead type recognition device (3), and a classification and collection device (4) are provided on the top of the workbench (1). A limit device (5) is provided in the inner cavity of the vibrating plate (2). A conveying device (6) is installed at the top of the vibrating plate (2). The conveying device (6) connects the vibrating plate (2) and the lead type recognition device (3). The lead type recognition device (3) includes an image recognition device (7) and a rotating placement device (7). The classification and collection device (4) is provided below the image recognition device (7).

[0017] Furthermore, the limiting device (5) includes a baffle (501), and a positioning pin (502) is inserted and connected to one side of the baffle (501).

[0018] Furthermore, a first mounting groove is provided on the top of the vibratory plate (2), and a conveying device (6) is fixedly connected to one side of the inner wall of the cavity of the first mounting groove.

[0019] Furthermore, the conveying device (6) includes a conveyor belt (601) and a first photoelectric switch disposed below the conveyor belt. The first photoelectric switch includes a first photoelectric transmitter (602) and a first photoelectric receiver (603). The first photoelectric transmitter (602) is installed below the end of the conveyor belt (601), and the first photoelectric receiver (603) is installed on a support column (802).

[0020] Furthermore, the rotating storage device (8) includes a base (801), a second mounting groove is provided at the top center of the base (801), a support column (802) is installed in the second mounting groove, a rotating bracket (803) is fixed on the support column (802), a flip motor (804) is installed at one end of the rotating bracket (803), and a transparent storage platform (805) is fixed on the flip motor (804).

[0021] Furthermore, the image recognition device (7) has a camera bracket (701), one end of which is fixed to a support column (802), and the other end is equipped with a camera (702) and a lighting lamp (703).

[0022] Furthermore, the sorting and collection device (4) is equipped with a second photoelectric switch and an opening and closing door (402). The second photoelectric switch includes a second photoelectric transmitter (401) and a second photoelectric receiver (403) disposed opposite to each other on both sides inside the sorting and collection device (4). The second photoelectric receiver (403) is disposed on the opening and closing door (402). A lead type collection box (404) is installed on the outside of the sorting and collection device (4).

[0023] Specifically, the intelligent classification and collection system for key non-destructive testing markers of the present invention includes a workbench 1, the workbench 1 having a rectangular cross-sectional shape when viewed from above, a vibrating plate 2 being provided on the top of the workbench 1, a limiting device 5 being provided in the inner cavity of the vibrating plate 2, a first mounting groove being provided on the top of the vibrating plate 2, and a conveying device 6 being fixedly connected to one side of the inner wall of the inner cavity of the first mounting groove. The shape of baffle 501 is as follows Figure 2As shown, the height of the lead type is controlled according to its thickness. The height of the lead type placed independently and stacked is different. The distance between the lower surface of the baffle 501 and the spiral track of the inner cavity of the vibrating plate 2 is less than the distance between two lead types stacked together. Its width is greater than the width of the spiral track, and the overall tilt has a certain arc. This can block the lead type stacked at a high position, improving the flexibility and smoothness of single-row lead type transmission. A positioning pin 502 is fixedly inserted and connected to one side of the baffle 501. A rectangular groove is opened on the vibrating plate 2, and the positioning pin 502 is installed in the rectangular groove. By adjusting the knob on the positioning pin 502, the distance between the lower surface of the baffle 501 and the spiral track of the inner cavity of the vibrating plate 2 can be adjusted to suit lead type of different specifications. The width of the spiral track inside the vibratory plate 2 is about 1.5 times the width of the lead type. The lead type can only be transported upward along the spiral track in a single row, which can avoid multiple lead type being output side by side at the same time, thus ensuring the normal operation of the device. The conveying device 6 includes a conveyor belt 601, which transports the lead type output from the vibratory feeder 2 outwards. Below the end of the conveyor belt 601 is a transparent shelf 806 in the rotating storage device 8, with a small height difference to prevent the lead type from falling from the end of the conveyor belt 601 and popping off the transparent shelf 806. A first photoelectric transmitter 602 is installed below the conveyor belt 601, and a first photoelectric receiver 603 is installed on the support column 802, with the first photoelectric transmitter 602 and the first photoelectric receiver 603 aligned in a straight line.

[0024] It should be noted that the first photoelectric switch simultaneously controls the start and stop of the vibratory feeder 2, the conveyor belt 6, and the rotary motor 802. When the lead character falls and blocks the light path emitted by the first photoelectric emitter 602, the photoelectric switch is activated, disconnecting the power supply to the vibratory feeder and the conveyor belt 601, causing them to stop working. This ensures that only one lead character falls on the transparent platform 806. At the same time, the rotary motor 802 is activated, causing the rotating platform 7 to complete a 180° rotation and transport the lead character to the working area of ​​the image recognition device 7.

[0025] The rotating storage device 8 includes a base 801. A second mounting groove is provided at the top center of the base 801. A rotating motor 802 is installed in the second mounting groove, and a support column 803 is fixedly installed on it. Two rotating brackets 804 are fixed on each support column 803. The two rotating brackets 804 are spaced 180° apart. A flip motor 805 is installed at one end of each of the two rotating brackets 804. A transparent storage platform 806 is fixed on the flip motor 805. There are baffles on both sides of the transparent storage platform 806 to prevent the lead type on it from falling accidentally during the operation of the device.

[0026] The image recognition device 7 has two camera brackets 701. One end of the camera bracket 701 is fixed to the support column 803, and the other end is equipped with a camera 702 and a light 703. The two cameras 702 face each other and perform image recognition on both sides of the lead characters on the transparent shelf 806. The transparent shelf 806 is made of anti-reflective transparent acrylic sheet to ensure that the images captured by the two cameras 702 are clear and accurate.

[0027] A second photoelectric transmitter 402 is fixed to the top left side inside the sorting and collection device 4. Multiple opening and closing doors 402 are fixed to the right side inside the sorting and collection device 4. A second photoelectric receiver 403 is installed on each opening and closing door 402. Multiple openings on the outside of the sorting and collection device 4 correspond one-to-one with the opening and closing doors 402. A lead type collection box 404 is installed next to each opening. The surface of the opening and closing door 402 is smooth and has a certain tilt angle when closed. When lead type falls onto the closed opening and closing door 403, it will slide from the opening into the corresponding lead type collection box 404.

[0028] It should be noted that when the X-ray lead type sorting and collecting device is working, the second photoelectric transmitter 402 is always in the open state. When the opening and closing door 402 is closed and the second photoelectric receiver 403 installed on it is turned on, the device will receive the signal emitted by the second photoelectric transmitter 402. The microcontroller system inside the sorting and collecting device 4 will control the opening and closing door 402 to open. After one sorting operation is completed, the device will automatically reset, that is, the opening and closing door 402 will close and the second photoelectric receiver 403 installed on the opening and closing door 402 will turn off.

[0029] It should be noted that the camera 702 is connected to the rotating bracket 803 fixed on the support column 802, the flip motor 804 fixed on the rotating bracket, and the second photoelectric receiver 403 installed on the opening and closing door 402 via radio waves. The function of the camera 702 is to identify both sides of the lead characters on the transparent shelf 805 that enter the recognition range, obtain a feature code, and then match it with the feature code stored in itself. If the match is successful, it indicates that it belongs to this type of item, and a signal will be sent to the sorting and collection device 4 and the rotating shelf device 8. The microcontroller system controls the second photoelectric receiver 403 installed on the specific opening and closing door 402 and the flip motor 804 on the transparent shelf 805, so that the corresponding second photoelectric receiver 403 is closed and all other second photoelectric receivers 403 are opened. The second photoelectric switch will open all other opening and closing doors 402 above the specific opening and closing door 402. At this time, the shelf 805 flips, and the lead type will fall into the sorting and collecting device 4 and slide down along the closed opening and closing door 403 into the corresponding lead type collecting box 404, thus completing one sorting cycle.

[0030] It should be noted that the bottom lead type collection box 404 of the sorting and collection device 4 is not synchronously matched with the opening and closing door. Instead, it is a fixed inclined plate without the second photoelectric receiver 403 installed. If the identified lead type matches the bottom lead type collection box 404 of the sorting and collection device 4, all the second photoelectric receivers 403 will be opened, and the second photoelectric switch will open all the opening and closing doors 402. At this time, the shelf 805 will be flipped, and the lead type will fall into the sorting and collection device 4 and slide down the bottom inclined plate into the bottom lead type collection box 404.

[0031] It should be noted that after completing one sorting operation, the sorting and collection device 4 will perform a reset operation, that is, all opening and closing doors 402 and the second photoelectric receivers 403 installed on the opening and closing doors 402 will be turned off. After completing the reset operation, the sorting and collection device 4 will send a signal to the vibratory feeder and conveyor belt system to restart their power supply and perform the next sorting operation.

[0032] The working principle of this invention is as follows: During use, the user lifts the baffle 501 to a suitable position according to the thickness of the lead type, and then tightens the positioning pin 502. When one end of the positioning pin 502 is pressed against the inner wall of one side of the rectangular groove cavity, the height of the baffle 501 is fixed, thus blocking lead type higher than the height of a single row of lead type and preventing lead type stacking. Then, the power is turned on to supply power to the vibratory feeder 2, the lead type identification device 3, and the sorting and collecting device 4. The disordered lead type to be sorted is then placed at the bottom of the vibratory feeder. The lead type is continuously transported upwards along the spiral track as the vibratory feeder vibrates. When it passes the limiting device 5, the baffle 501 blocks the lead type stacked at a high position. The single row of unstacked lead type is continuously transported along the conveyor belt 601. When the lead type reaches the end of the conveyor belt 601 and falls, blocking the light path emitted by the first photoelectric emitter, the photoelectric switch is activated, disconnecting the power to the vibratory feeder and the conveyor belt 601, stopping their operation. This ensures that only one lead type falls onto the transparent shelf 806, and simultaneously, the rotation is started. Motor 802 causes the rotating storage device 7 to rotate 180°, thereby transporting the lead type to the working area of ​​image recognition device 7. At this time, the two cameras 702 of image recognition device 7 will perform image recognition on both sides of the lead type on the transparent storage platform 806, obtain a feature code, and then match it with the feature code stored in itself. If the match is successful, it indicates that it belongs to this type of item, and a signal will be sent to the microcontroller system in the sorting and collection device 4 and the rotating storage device 8 to control the second photoelectric receiver 403 installed on the specific opening and closing door 402 and the flipping motor 804 on the transparent storage platform 805, so that the corresponding second photoelectric receiver 403 is closed and all other second photoelectric receivers 403 are opened. The second photoelectric switch will open all other opening and closing doors 402 above the specific opening and closing door 402. At this time, the storage platform 805 flips, and the lead type will fall into the sorting and collection device 4 and slide down along the closed opening and closing door 403 into the corresponding lead type collection box 404, thus completing one sorting cycle. After completing one sorting operation, the sorting and collection device 4 will perform a reset operation, that is, all opening and closing doors 402 and the second photoelectric receivers 403 installed on the opening and closing doors 402 will be turned off. After completing the reset operation, the sorting and collection device 4 will send a signal to the vibratory feeder and conveyor belt system to restart their power supply and perform the next sorting operation.

[0033] The technical effects and advantages of the intelligent classification and collection system for key non-destructive testing markers of the present invention are as follows: (1) The vibratory feeder designed in this invention uses a limiting device and a positioning pin to improve the uniformity of the posture when the lead type is discharged, avoid the accumulation and blockage of the lead type during discharge, and thus improve the overall recognition efficiency and classification quality. (2) The present invention utilizes the cooperation of mounting groove and positioning pin to improve the flexibility and convenience of baffle position adjustment, thereby improving the overall practicality; (3) This invention takes digital information technology such as image recognition as the core and various modular mechanical systems as auxiliary. Unlike traditional physical classification methods, it has higher classification accuracy, good stability and adaptability. It can be applied to classification objects with different features by modifying the program, thereby achieving the purpose of high accuracy, high efficiency, modularity and low coupling. (4) By utilizing the combination of two cameras and a transparent platform, the present invention can simultaneously identify both sides of the lead type, thus avoiding the impact of the uncertainties in the placement of the lead type on the stable operation of the core step of image recognition.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not limited to the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart classification and collection system for key non-destructive testing markers, characterized in that, The device includes a workbench (1), characterized in that a vibratory plate (2), a lead type recognition device (3), and a sorting and collecting device (4) are provided on the top of the workbench (1); a limiting device (5) is provided in the inner cavity of the vibratory plate (2); a conveying device (6) is installed at the top of the vibratory plate (2); the conveying device (6) connects the vibratory plate (2) and the lead type recognition device (3); the lead type recognition device (3) includes an image recognition device (7) and a rotating placement device (8); a sorting and collecting device (4) is provided below the image recognition device (7); the limiting device (5) includes a baffle (501); a positioning pin (502) is inserted and connected to one side of the baffle (501); the vibratory plate (2) is equipped with a vibratory plate (2). A rectangular groove is provided, and a positioning pin (502) is installed in the rectangular groove. The distance between the lower surface of the baffle (501) and the spiral track of the inner cavity of the vibratory plate (2) can be adjusted by adjusting the knob on the positioning pin (502) to suit different specifications of lead type. A first mounting groove is provided on the top of the vibratory plate (2), and a conveying device (6) is fixedly connected to one side of the inner wall of the inner cavity of the first mounting groove. The conveying device (6) includes a conveyor belt (601) and a first photoelectric switch located below the conveyor belt. The first photoelectric switch includes a first photoelectric transmitter (602) and a first photoelectric receiver (603). The first photoelectric transmitter (602) is installed below the end of the conveyor belt (601). The photoelectric receiver (603) is mounted on the support column (802); the rotating storage device (8) includes a base (801), the top center of the base (801) is provided with a second mounting groove, the support column (802) is installed in the second mounting groove, a rotating bracket (803) is fixed on the support column (802), a flip motor (804) is installed at one end of the rotating bracket (803), and a transparent storage platform (805) is fixed on the flip motor (804); the image recognition device (7) has two camera brackets (701), one end of the camera bracket (701) is fixed to the support column (802), and the other end is equipped with a camera (702) and a lighting lamp (703); the two cameras (702) 02) Facing each other, image recognition is performed on both sides of the lead type on the transparent shelf (806). A second photoelectric transmitter (401) is fixed on the top left side inside the classification and collection device (4). Multiple opening and closing doors (403) are fixed on the right side inside the classification and collection device (4). A second photoelectric receiver (402) is installed on each opening and closing door (403). Multiple openings on the outside of the classification and collection device (4) correspond one-to-one with the opening and closing doors (403). A lead type collection box (404) is installed next to each opening. The second photoelectric transmitter (401) and the second photoelectric receiver (402) control all the remaining opening and closing doors (403) above the specific opening and closing door (403) to open, so that the lead type can enter the specific opening and closing door (403).

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