Fan defect detection device based on machine vision

Abstract

The utility model relates to the technical field of fan defect detection devices, and discloses a fan defect detection device based on machine vision, which comprises two mounting plates, a group of mounting racks are respectively mounted on the opposite sides of the two mounting plates, and detection cameras are mounted on the inner walls of the two groups of mounting racks in a closed manner. A motor is mounted on the inner wall of the mounting plate located between each group of detection camera main bodies, couplings are mounted on output shafts of the two motors respectively, rotating plates are mounted on the sides, away from the motors, of the couplings, and the mounting rack and the detection cameras can be mounted through the two mounting plates; the detection camera arranged oppositely can detect fan blades in the fan, the rotation frequency of the motor is set, so that the motor drives the rotating plate to rotate, the rotating plate drives the cleaning block to clean the detection camera, the cleaning block can be conveniently replaced through a son hook-and-loop fastener and a mother hook-and-loop fastener, and the cleaning efficiency is improved. And the image detection definition of the detection camera is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of fan defect detection devices, in particular to a fan defect detection device based on machine vision. Background Art

[0002] Traditionally, enterprises usually rely on manual inspection in the defect detection process. This operation mode is work-intensive and causes serious damage to human eyesight. Manual vision can no longer meet the requirements of production efficiency. With the continuous development of society, defect detection devices based on machine vision have also emerged. For example, transparent glass plates are used to transport workpieces, and then detection cameras are set on the upper and lower sides of the glass to capture the outer wall of the workpiece, and then the captured images are transmitted to the computer terminal.

[0003] In the authorized patent document with the announcement number CN217007032U, a defect detection device based on machine vision is disclosed, including a base, one side of the base is fixedly connected to a bracket, one side of the bracket is fixedly connected to a reduction motor, the output end of the reduction motor is fixedly connected to a driving gear, through the matching arrangement of the reduction motor, the driving gear, the driven gear, the first rotating shaft and the rotating frame, the reduction motor is started, the driving gear will drive the driven gear to rotate, and then the first rotating shaft drives the rotating frame to rotate, so that the object to be inspected located on the rotating frame can be rotated and inspected by an industrial camera, only one industrial camera is needed to complete the comprehensive inspection of the object to be inspected, so that multiple industrial cameras are no longer needed to inspect the object to be inspected, thereby greatly saving production costs.

[0004] When the above device is implemented, when the camera is detecting and collecting images, dust will gradually adhere to the output glass end of the camera, thereby affecting the clarity of the camera's detection and collection of images of the workpiece. Utility Model Content

[0005] The purpose of the utility model is to provide a fan defect detection device based on machine vision, which solves the problem that when the above device is implemented, when the camera is in the process of detecting and collecting images, dust will slowly adhere to the output glass end of the camera, thereby affecting the clarity of the camera's detection and collection of images of the workpiece.

[0006] An embodiment of the present application provides a fan defect detection device based on machine vision, comprising two mounting plates, a group of mounting frames are respectively installed on one side of the two mounting plates which are arranged opposite to each other, detection cameras are enclosed and installed on the inner walls of the two groups of mounting frames, motors are respectively installed on the inner walls of the mounting plates located between the main bodies of each group of detection cameras, couplings are respectively installed on the output shafts of the two motors, a rotating plate is installed on the side of the coupling away from the motor, two sub-Velcro are respectively installed on the side of the rotating plate close to the detection camera, mother Velcro is respectively bonded on the side of the two groups of sub-Velcro away from the rotating plate, a cleaning block is fixedly installed on the side of the mother Velcro away from the sub-Velcro, and the cleaning block is in contact with the glass surface of the detection camera.

[0007] By adopting the above technical scheme, the mounting frame and the detection camera can be installed through two mounting plates, and the detection cameras arranged opposite to each other can detect the fan blades in the fan. The rotation frequency of the motor is set, so that the motor drives the rotating plate to rotate, and the rotating plate drives the cleaning block to clean the detection camera. The child Velcro and the mother Velcro can facilitate the replacement of the cleaning block, thereby enhancing the clarity of the detection image of the detection camera.

[0008] Optionally, a connecting plate is fixedly connected to one side of the two mounting plates, and two electric push rods are fixedly installed between the two connecting plates.

[0009] By adopting the above technical solution, the connecting plate can be connected through the mounting plate, and then the distance between the two mounting plates can be conveniently adjusted with the cooperation of the electric push rod.

[0010] Optionally, an infrared ray lamp is installed at the lower end of one side of the rotating plates.

[0011] By adopting the above technical solution, the infrared ray lamp can be fixed by the rotating plate, and after the infrared ray lamp detects the height of the workpiece, it can transmit a signal to the electric push rod.

[0012] Optionally, a group of fill lights are fixedly mounted on one side of the two rotating plates that are arranged opposite to each other, and the two groups of fill lights are evenly arranged in a linear array.

[0013] By adopting the above technical solution, the workpiece can be fully illuminated by the fill light.

[0014] Optionally, a battery is installed on one side of each of the two rotating plates, and the battery is electrically connected to the fill light and the infrared ray lamp.

[0015] By adopting the above technical solution, the storage battery can be used to supply power to the fill light and the infrared ray lamp.

[0016] Optionally, two support rods are fixedly mounted on the lower end of one of the mounting plates.

[0017] By adopting the above technical solution, the mounting plate can be supported by the support rods.

[0018] Optionally, bottom plates are fixedly mounted on the lower ends of the two support rods, and a plurality of groups of bolts are rotatably penetrated inside the bottom plates.

[0019] By adopting the above technical solution, the contact area between the support rod and the ground or the supporting object can be increased through the bottom plate, thereby enhancing the stability of the support rod, and the bolts can fix the bottom plate.

[0020] Optionally, the cleaning block is made of microfiber cloth.

[0021] By adopting the above technical solution, the cleaning block is made of microfiber cloth, and the cloth is very soft and will not scratch the glass surface. It also has excellent cleaning effect. The microfiber cloth can effectively remove stains and dust on the glass and can be reused.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The technical solution of the present application can install the mounting frame and the detection camera through two mounting plates, and the detection cameras arranged opposite to each other can detect the fan blades in the fan. The rotation frequency of the motor is set, so that the motor drives the rotating plate to rotate, and the rotating plate drives the cleaning block to clean the detection camera. The child Velcro and the mother Velcro can facilitate the replacement of the cleaning block, thereby enhancing the clarity of the detection image of the detection camera.

[0024] The blades of different fans have different curvatures, which results in different heights for placing the blades. The rotating plate in a non-working state is placed in a cross shape with each set of detection cameras. When the infrared lamp detects the fan blades, it can transmit a signal to allow the electric push rod to drive the mounting plate to adjust the height, making it easier for the detection camera to capture images of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0026] Figure 1 It is a front view schematic diagram of a fan defect detection device based on machine vision of the utility model;

[0027] Figure 2 This is an enlarged front view of a rotating plate of a fan defect detection device based on machine vision according to the utility model;

[0028] Figure 3 The utility model is a fan defect detection device based on machine vision Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 The utility model is a fan defect detection device based on machine vision Figure 2 Enlarged view of point B in the middle.

[0030] In the figure: 1. Mounting plate; 2. Mounting frame; 3. Detection camera; 4. Motor; 5. Coupling; 6. Rotating plate; 7. Sub Velcro; 8. Sub Velcro; 9. Cleaning block; 10. Infrared ray lamp; 11. Fill light; 12. Battery; 13. Connecting plate; 14. Electric push rod; 15. Support rod; 16. Bottom plate; 17. Bolts. DETAILED DESCRIPTION

[0031] See also Figure 1-4 The utility model provides a technical solution: a fan defect detection device based on machine vision, comprising two mounting plates 1, a group of mounting frames 2 are respectively installed on one side of the two mounting plates 1 that are arranged opposite to each other, and detection cameras 3 are installed on the inner walls of the two groups of mounting frames 2 in a closed manner, and motors 4 are respectively installed on the inner walls of the mounting plates 1 located between the main bodies of each group of detection cameras 3, and couplings 5 ​​are respectively installed on the output shafts of the two motors 4, and a rotating plate 6 is respectively installed on the side of the coupling 5 away from the motor 4, and two sub-Velcro 7 are respectively installed on the side of the rotating plate 6 close to the detection camera 3, and mother Velcro 8 is respectively bonded on the side of the two groups of sub-Velcro 7 away from the rotating plate 6, and a cleaning block 9 is fixedly installed on the side of the mother Velcro 8 away from the sub-Velcro 7, the cleaning block 9 contacts the glass surface of the detection camera 3, and the cleaning block 9 is made of microfiber cloth, and a group of fill lights 11 are respectively fixedly installed on the side of the two rotating plates 6 that are arranged opposite to each other, and the two groups of fill lights 11 are evenly arranged in a linear array.

[0032] In the technical solution of the utility model, the two mounting plates 1 can be used to install the mounting frame 2 and the detection camera 3, and the detection camera 3 arranged oppositely can detect the fan blades in the fan, and the rotation frequency of the motor 4 is set, so that the motor 4 drives the rotating plate 6 to rotate, so that the rotating plate 6 drives the cleaning block 9 to clean the detection camera 3, and the child Velcro 7 and the mother Velcro 8 can facilitate the replacement of the cleaning block 9, thereby enhancing the clarity of the detection image of the detection camera 3.

[0033] In addition, the cleaning block 9 is made of microfiber cloth, which is very soft and will not scratch the glass surface. It has an excellent cleaning effect. The microfiber cloth can effectively remove stains and dust on the glass and can be reused. The fill light 11 can provide sufficient lighting for the workpiece.

[0034] In the technical solution of the utility model, if Figure 2 , Figure 3 and Figure 4 As shown, one side of the two mounting plates 1 is fixedly connected with a connecting plate 13, and two electric push rods 14 are fixedly installed between the two connecting plates 13. The mounting plate 1 can be used to connect the connecting plates 13, and then the distance between the two mounting plates 1 can be conveniently adjusted with the cooperation of the electric push rod 14. An infrared ray lamp 10 is installed at the lower end of one side of one of the rotating plates 6. The infrared ray lamp 10 can be fixed by the rotating plate 6. After the infrared ray lamp 10 detects the height of the workpiece, it can transmit a signal to the electric push rod 14. One side of the two rotating plates 6 is respectively installed with a battery 12, and the battery 12 is electrically connected to the fill light 11 and the infrared ray lamp 10. The fill light 11 and the infrared ray lamp 10 can be powered by the battery 12.

[0035] In the technical solution of the utility model, if Figure 1 As shown, two support rods 15 are fixedly installed at the lower end of one of the mounting plates 1, and the support rods 15 can support the mounting plate 1. The lower ends of the two support rods 15 are respectively fixedly installed with base plates 16, and multiple groups of bolts 17 are rotatably penetrated inside the base plate 16. The base plate 16 can increase the contact area between the support rod 15 and the ground or the supporting object, thereby enhancing the stability of the support rod 15, and the bolts 17 can fix the base plate 16.

[0036] When in use, firstly, the device can be installed on the ground or supporting mechanism by the cooperation of the bottom plate 16, the support rod 15 and the bolt 17, so that the conveying mechanism is located between the two mounting plates 1, so that the detection camera 3 can detect and collect images of the workpiece. The fan blades of different fans have different curvatures, which leads to different heights for placing the fan blades. Then, the rotating plate 6 in a non-working state is placed in a cross shape with each group of detection cameras 3, so that when the infrared ray lamp 10 detects the fan blades, it can transmit a signal to allow the electric push rod 14 to drive the mounting plate 1 to adjust the height, so that the detection camera 3 can collect images of the workpiece, and the rotation frequency of the motor 4 is set, so that the motor 4 drives the rotating plate 6 to rotate, so that the rotating plate 6 drives the cleaning block 9 to clean the detection camera 3, and the sub-Velcro 7 and the mother Velcro 8 can facilitate the replacement of the cleaning block 9, thereby enhancing the clarity of the detection image of the detection camera 3;

[0037] The external device control system receives images from the detection camera 3 and processes and analyzes the images using a machine vision algorithm. According to preset defect recognition standards, the system can automatically detect defects on the fan surface, such as cracks, rust, etc. The system can display the detection results in real time and issue an alarm or record relevant information when defects are found.

Claims

1. A fan defect detection device based on machine vision, characterized in that: The invention comprises two mounting plates (1), one side of the two mounting plates (1) being oppositely arranged is respectively provided with a group of mounting frames (2), the inner walls of the two groups of mounting frames (2) are enclosedly provided with detection cameras (3), the inner walls of the mounting plates (1) located between the main bodies of each group of detection cameras (3) are respectively provided with motors (4), the output shafts of the two motors (4) are respectively provided with couplings (5), a rotating plate (6) is installed on the side of the coupling (5) away from the motor (4), two sub-velcro strips (7) are respectively installed on the side of the rotating plate (6) close to the detection camera (3), the two groups of sub-velcro strips (7) are respectively bonded with a mother Velcro strip (8) on the side away from the rotating plate (6), a cleaning block (9) is fixedly provided on the side of the mother Velcro strip (8) away from the sub-velcro strip (7), and the cleaning block (9) is in contact with the glass surface of the detection camera (3).

2. The fan defect detection device based on machine vision according to claim 1 is characterized in that: One side of the two mounting plates (1) is respectively fixedly connected to a connecting plate (13), and two electric push rods (14) are fixedly mounted between the two connecting plates (13).

3. The fan defect detection device based on machine vision according to claim 2 is characterized in that: An infrared ray lamp (10) is installed at the lower end of one side of one of the rotating plates (6).

4. The fan defect detection device based on machine vision according to claim 1 is characterized in that: A group of fill-in lights (11) is fixedly mounted on one side of the two rotating plates (6) that are arranged opposite to each other, and the two groups of fill-in lights (11) are evenly arranged in a linear array.

5. The fan defect detection device based on machine vision according to claim 4 is characterized in that: A storage battery (12) is respectively installed on one side of the two rotating plates (6), and the storage battery (12) is electrically connected to the fill light (11) and the infrared ray lamp (10).

6. The fan defect detection device based on machine vision according to claim 1 is characterized in that: Two support rods (15) are fixedly mounted on the lower end of one of the mounting plates (1).

7. The fan defect detection device based on machine vision according to claim 6 is characterized in that: A bottom plate (16) is fixedly mounted on the lower ends of the two support rods (15), and a plurality of groups of bolts (17) are rotatably penetrated inside the bottom plate (16).

8. The fan defect detection device based on machine vision according to claim 1 is characterized in that: The cleaning block (9) is made of microfiber cloth.

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