Automatic detection device based on machine vision

Abstract

The utility model belongs to the technical field of detection, in particular relates to an automatic detection device based on machine vision, and aims to solve the problems that the manual detection on the surface of an artificial board depending on eyes and experience in the prior art is high in labor cost, low in efficiency and high in error rate, and some automatic detection devices cannot realize double-sided simultaneous detection. According to the technical scheme, the automatic feeding and discharging device comprises a shading box, four supporting columns are fixedly arranged at the bottom of the shading box at equal intervals, and a control panel is fixedly arranged on one side of the shading box, automatic feeding and discharging of artificial boards are achieved through a conveying assembly and an infrared sensor, manual intervention is reduced, the labor intensity is lowered, and the production efficiency is improved. The two symmetrically-arranged detection assemblies can detect the two faces of the artificial board at the same time, the detection efficiency is greatly improved, the detection assemblies can move through the arrangement of the driving assemblies, detection blind areas are avoided, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection technical field especially, relate to a kind of automatic detection device based on machine vision. BACKGROUND

[0002] Artificial board is a kind of wood or other non-wood plant fiber as main raw material, after processing, compression, bonding process such as process board, it has multiple types and extensive use, in the production process of artificial board, in order to ensure the flatness of board surface and whether there is defect, artificial board surface needs to be detected.

[0003] Traditional artificial board surface detection is mostly dependent on artificial eyes and experience detection, not only artificial cost is high, efficiency is low, and error rate is also high, and some artificial board automatic detection device mostly can only detect the single side of board, cannot realize double-sided detection simultaneously, which limits detection efficiency to some extent, therefore, we propose a kind of automatic detection device based on machine vision, to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings that artificial eyes and experience detection of artificial board surface in prior art, not only artificial cost is high, efficiency is low, and error rate is also high and some automatic detection device cannot realize double-sided detection simultaneously, and proposes a kind of automatic detection device based on machine vision.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of automatic detection device based on machine vision, including light shield box, the bottom of the light shield box is fixedly provided with four support columns at equal intervals, the side of the light shield box is fixedly provided with control panel, the both sides of the light shield box are all provided with through opening, the both sides of the light shield box are all fixedly provided with mounting plate below through opening, the inside of the light shield box is fixedly provided with four limit rods at equal intervals, the same mounting frame is slidably penetrated on four limit rods, the device further includes:

[0007] Conveying assembly, conveying assembly is all set on two mounting plates, for the automatic feeding and discharging of artificial board;

[0008] Two groups of detection components, two groups of detection components are symmetrically arranged on the top and bottom of mounting frame, for detecting the double side of artificial board simultaneously;

[0009] Drive assembly, drive assembly is arranged on mounting frame, for driving two groups of detection components to move, realizes the comprehensive detection of double side of artificial board.

[0010] In a possible design, the conveying assembly includes two support plates, both of which are arranged inside the light shielding box, both ends of the two support plates pass through the two through openings and are fixedly connected with the two mounting plates, both sides of the two support plates close to each other are symmetrically provided with two belt pulleys, both of which are fixedly connected with one of the belt pulleys.

[0011] In a possible design, the light shielding box is provided with infrared sensors for monitoring the movement of the artificial board on both sides above the two through openings.

[0012] In a possible design, the detection assembly includes a sliding block, which passes through the top of the mounting frame and is in sliding connection with the mounting frame, the bottom of the sliding block is fixedly provided with a telescopic cylinder, the output shaft of the telescopic cylinder is fixedly provided with a fixed plate, and the bottom of the fixed plate is fixedly provided with a CCD camera and a visual sensor.

[0013] In a possible design, the bottom of the fixed plate is fixedly provided with four fill light lamps for increasing brightness at equal intervals, the bottom of the fixed plate is fixedly provided with a light shielding cylinder, and the CCD camera and the visual sensor are located inside the light shielding cylinder.

[0014] In a possible design, the driving assembly includes two first threaded rods, both ends of the two first threaded rods are rotatably connected with the inner walls of both sides of the mounting frame, both of the first threaded rods are threadedly passed through the corresponding sliding blocks, one end of each of the first threaded rods passes through the mounting frame and is fixedly sleeved with a driven bevel gear, the top inner wall and the bottom inner wall of the mounting frame are rotatably connected with the same transmission rod, and the outer wall of the transmission rod is fixedly sleeved with a driving bevel gear, both of the driving bevel gears are meshingly connected with the corresponding driven bevel gears, the top of the mounting frame is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with the transmission rod.

[0015] In a possible design, the inner walls of both sides of the light shielding box are rotatably connected with a second threaded rod, and the second threaded rod is threadedly passed through the mounting frame, one side of the light shielding box is fixedly connected with a third motor, and the output end of the third motor is fixedly connected with the second threaded rod.

[0016] In the present application, first, the automatic feeding of the artificial board is realized through the conveying assembly, specifically, the two first motors are started to drive the corresponding belt pulleys to rotate, and then the artificial board is conveyed from one side to the inside of the light shielding box through the conveying belt, and the infrared sensors on both sides of the light shielding box can monitor the movement of the artificial board in real time to ensure the stability and accuracy of the board during the conveying process.

[0017] When the artificial board is conveyed to the inside of the light shielding box, the driving assembly starts to work, the second motor starts to drive the transmission rod to rotate, and then the meshing transmission of the driving bevel gear and the driven bevel gear drives the two first threaded rods to rotate, since the first threaded rod is threaded through the corresponding sliding block, the sliding block moves along the mounting frame under the rotation of the first threaded rod, thereby driving the detection assembly to move, the detection assembly comprises a telescopic cylinder, a fixed plate, a detection camera and a visual sensor and the like, the telescopic cylinder can adjust the height of the detection camera and the visual sensor to adapt to artificial boards of different thicknesses, and the detection camera and the visual sensor are used for shooting and detecting the two sides of the artificial board and transmitting the detection data to the control panel for processing and analysis.

[0018] In order to avoid the detection blind area, the third motor drives the second threaded rod to rotate, since the second threaded rod is threaded through the mounting frame, the mounting frame and the two detection assemblies thereon move on the four limiting rods, thereby reducing the occurrence of the detection blind area.

[0019] During the detection process, the light supplement lamp can provide sufficient light to improve the shooting effect, and the light shielding cylinder can reduce the interference of external light to ensure the accuracy of the shooting result, when the detection is completed, the driving assembly works again to move the detection assembly back to the original position, and then the conveying assembly outputs the artificial board from the other side to complete the automatic discharging.

[0020] Beneficial effects: in the utility model, the automatic detection device based on machine vision realizes the automatic feeding and discharging of the artificial board through the setting of the conveying assembly and the infrared sensor, improves the detection efficiency, reduces the manual intervention and reduces the labor intensity.

[0021] In the utility model, the automatic detection device based on machine vision can detect the two sides of the artificial board at the same time through the symmetric setting of the two detection assemblies, not only greatly improves the detection efficiency, but also makes the detection result more accurate and reliable.

[0022] In the utility model, the automatic detection device based on machine vision can move the detection assembly through the setting of the driving assembly, avoids the detection blind area and improves the detection accuracy.

[0023] In the utility model, the automatic detection device based on machine vision realizes the automatic feeding and discharging of the artificial board through the setting of the conveying assembly and the infrared sensor, reduces the manual intervention and reduces the labor intensity, the two symmetrically set detection assemblies can detect the two sides of the artificial board at the same time, greatly improves the detection efficiency, the setting of the driving assembly can move the detection assembly, avoids the detection blind area and improves the detection accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1A three-dimensional structure schematic diagram of a conveying assembly based on the automatic detection device of machine vision is provided in the utility model.

[0025] Figure 2 A three-dimensional structure schematic diagram of a mounting frame based on the automatic detection device of machine vision is provided in the utility model.

[0026] Figure 3 A three-dimensional structure schematic diagram of a mounting frame based on the automatic detection device of machine vision is provided in the utility model.

[0027] Figure 4 A three-dimensional structure schematic diagram of a mounting frame based on the automatic detection device of machine vision is provided in the utility model.

[0028] In the figure: 1, light shielding box; 2, support column; 3, control panel; 4, mounting plate; 5, support plate; 6, belt pulley; 7, conveying belt; 8, first motor; 9, infrared sensor; 10, mounting frame; 11, limit rod; 12, sliding block; 13, telescopic cylinder; 14, fixed plate; 15, CCD camera; 16, vision sensor; 17, light supplementing lamp; 18, first threaded rod; 19, driven bevel gear; 20, transmission rod; 21, driving bevel gear; 22, second motor; 23, second threaded rod; 24, third motor; 25, light shielding cylinder. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0030] Embodiment 1: refer to Figures 1-4 A detection device, including light shielding box 1, the bottom of light shielding box 1 is fixed with four support columns 2 at equal intervals, these support columns 2 are used to support the whole device, ensure its stability. One side of light shielding box 1 is fixed with control panel 3, control panel 3 is integrated with various operation buttons and display screen, is convenient for user operation and monitoring. Both sides of light shielding box 1 are provided with through opening, for the entry and exit of artificial board. In the both sides of light shielding box 1, below the through opening, are fixed with mounting plate 4, these mounting plate 4 are used to install conveying assembly.

[0031] The inside of light shielding box 1 is fixed with four limit rods 11 at equal intervals, the same mounting frame 10 is slidably penetrated on the four limit rods 11, and the mounting frame 10 can slide on the limit rods 11.

[0032] The core components of the device include:

[0033] The conveying assembly is arranged on the two mounting plates 4, and is used for automatically feeding and discharging the artificial board. Specifically, the conveying assembly comprises two support plates 5, which are arranged in the interior of the light shielding box 1, and the two ends of each support plate 5 penetrates through the two through openings and is fixedly connected with the two mounting plates 4. On the side where the two support plates 5 are close to each other, two belt pulleys 6 are symmetrically arranged, and the belt pulleys 6 are all drivingly connected with a conveying belt 7, so as to form a closed conveying path. On the side where the two support plates 5 are away from each other, a first motor 8 is fixedly arranged on each support plate 5, and the output end of each first motor 8 penetrates through the corresponding support plate 5 and is fixedly connected with one of the belt pulleys 6. Therefore, when the first motor 8 rotates, the belt pulley 6 and the conveying belt 7 can be driven to rotate, so that the artificial board can be conveyed.

[0034] The detection assembly is symmetrically arranged on the top and bottom of the mounting frame 10, and is used for detecting the double sides of the artificial board. Each detection assembly comprises a sliding block 12, which penetrates through the top or bottom of the mounting frame 10 and is slidingly connected with the mounting frame 10. The bottom of the sliding block 12 is fixedly connected with a telescopic cylinder 13, and the output shaft of the telescopic cylinder 13 is fixedly connected with a fixed plate 14. The CCD camera 15 and the visual sensor 16 are fixedly arranged on the bottom of the fixed plate 14, and are used for image acquisition and data analysis of the artificial board.

[0035] The driving assembly is arranged on the mounting frame 10, and is used for driving the two detection assemblies to move, so as to comprehensively detect the double sides of the artificial board. Specifically, the driving assembly comprises two first threaded rods 18, the two ends of each first threaded rod 18 are rotatably connected with the inner walls of the two sides of the mounting frame 10, and the first threaded rods 18 are threadedly penetrated through the corresponding sliding blocks 12. Therefore, when the first threaded rods 18 rotate, the sliding blocks 12 and the detection assemblies can be driven to move on the mounting frame 10. The one end of each first threaded rod 18 penetrates through the mounting frame 10 and is fixedly sleeved with a driven bevel gear 19. A transmission rod 20 is rotatably connected between the top inner wall and the bottom inner wall of the mounting frame 10, and the outer wall of the transmission rod 20 is fixedly sleeved with two driving bevel gears 21, and the two driving bevel gears 21 are meshingly connected with the corresponding driven bevel gears 19. Therefore, when the transmission rod 20 rotates, the two first threaded rods 18 can be driven to synchronously rotate. On the top of the mounting frame 10, a second motor 22 is fixedly arranged, and the output end of the second motor 22 is fixedly connected with the transmission rod 20. Therefore, when the second motor 22 rotates, the transmission rod 20 and the first threaded rods 18 can be driven to rotate, so that the movement of the two detection assemblies can be realized.

[0036] In order to realize the movement of the mounting frame 10, the inner walls of the two sides of the light shielding box 1 are rotationally connected with second threaded rods 23 which are threaded through the mounting frame 10. On one side of the light shielding box 1, a third motor 24 is fixed, and the output end of the third motor 24 is fixedly connected with the second threaded rods 23. Therefore, when the third motor 24 rotates, the second threaded rods 23 can be driven to rotate, thereby driving the mounting frame 10 and the detection assembly thereon to move.

[0037] In order to monitor the movement of the artificial board, infrared sensors 9 are arranged above the two through openings on the two sides of the light shielding box 1. When the artificial board passes through the through opening, the infrared sensor 9 is triggered, thereby sending a signal to the control system, and the control system can control the starting and stopping of the first motor 8, the telescopic cylinder 13, the second motor 22 and the third motor 24 according to the signal, so as to realize automatic detection.

[0038] The present application can be used in the field of artificial board surface detection, and can also be used in other fields applicable to the present application.

[0039] Embodiment 2: Reference Figure 4 On the basis of embodiment one, an automatic detection device based on machine vision is applied to the field of artificial board surface detection, in addition, four light supplement lamps 17 are fixed at equal intervals at the bottom of the fixed plate 14, for increasing light and improving the quality of image acquisition. At the same time, a light shielding cylinder 25 is fixed at the bottom of the fixed plate 14, and the CCD camera 15 and the vision sensor 16 are located inside the light shielding cylinder 25, so as to reduce the interference of external light on the detection result.

[0040] However, as known by those skilled in the art, the working principles and wiring methods of the first motor 8, the second motor 22 and the third motor 24 are common, which belong to conventional means or common general knowledge, and will not be described here again, and those skilled in the art can make any selection or arrangement according to their needs or convenience.

[0041] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An automatic detection device based on machine vision, comprising a light-shielding box (1), wherein four support columns (2) are fixedly arranged at equal intervals at the bottom of the light-shielding box (1), a control panel (3) is fixedly arranged on one side of the light-shielding box (1), openings are provided on both sides of the light-shielding box (1), and mounting plates (4) are fixedly arranged below the openings on both sides of the light-shielding box (1), and four limiting rods (11) are fixedly arranged at equal intervals inside the light-shielding box (1), wherein the same mounting bracket (10) slides through the four limiting rods (11), characterized in that, The device also includes: The conveying components are set on two mounting plates (4) for automatic feeding and unloading of artificial boards; Two sets of testing components are symmetrically arranged at the top and bottom of the mounting frame (10) for simultaneous testing of both sides of the artificial board. The drive assembly is mounted on the mounting bracket (10) and is used to drive the two sets of detection components to move, so as to achieve comprehensive detection of both sides of the artificial board.

2. The automatic inspection device based on machine vision according to claim 1, characterized in that, The conveying assembly includes two support plates (5), both of which are located inside the light-shielding box (1). The two ends of the two support plates (5) pass through two openings and are fixedly connected to two mounting plates (4). Two pulleys (6) are symmetrically rotated on the side of the two support plates (5) that are close to each other. A conveyor belt (7) is driven and connected to the two pulleys (6). A first motor (8) is fixedly installed on the side of the two support plates (5) that are far apart from each other. The output ends of the two first motors (8) pass through the corresponding support plates (5) and are fixedly connected to one of the pulleys (6).

3. The automatic inspection device based on machine vision according to claim 2, characterized in that, The light-shielding box (1) is equipped with infrared sensors (9) on both sides above the two openings for monitoring the movement of the artificial board.

4. The automatic inspection device based on machine vision according to claim 1, characterized in that, The detection component includes a slider (12), which passes through the top of the mounting frame (10) and is slidably connected to the mounting frame (10). A telescopic cylinder (13) is fixedly installed at the bottom of the slider (12). A fixing plate (14) is fixedly installed on the output shaft of the telescopic cylinder (13). A CCD camera (15) and a vision sensor (16) are fixedly installed at the bottom of the fixing plate (14).

5. The automatic inspection device based on machine vision according to claim 4, characterized in that, Four supplementary lights (17) for increasing brightness are fixedly installed at equal intervals at the bottom of the fixed plate (14). A light shield (25) is fixedly installed at the bottom of the fixed plate (14), and the CCD camera (15) and the vision sensor (16) are both located inside the light shield (25).

6. The automatic inspection device based on machine vision according to claim 1, characterized in that, The drive assembly includes two first threaded rods (18), the two ends of which are rotatably connected to the inner walls of the two sides of the mounting frame (10), and the two first threaded rods (18) are threaded through the corresponding sliders (12). One end of each of the two first threaded rods (18) passes through the mounting frame (10) and is fixedly fitted with a driven bevel gear (19). The top inner wall and bottom inner wall of the mounting frame (10) are rotatably connected to the same transmission rod (20), and the outer wall of the transmission rod (20) is fixedly fitted with an active bevel gear (21). The two active bevel gears (21) are respectively meshed with the corresponding driven bevel gears (19). The top of the mounting frame (10) is fixedly connected to a second motor (22), and the output end of the second motor (22) is fixedly connected to the transmission rod (20).

7. The automatic inspection device based on machine vision according to claim 6, characterized in that, The inner walls of both sides of the light-shielding box (1) are rotatably connected to a second threaded rod (23), and the second threaded rod (23) is threaded through the mounting bracket (10). A third motor (24) is fixedly connected to one side of the light-shielding box (1), and the output end of the third motor (24) is fixedly connected to the second threaded rod (23).

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