Visual inspection device for surface defects of aging-resistant shielded tubes

Abstract

This utility model relates to the field of shielded tube testing technology, and discloses a visual inspection device for surface defects of aging-resistant shielded tubes. It includes a double-layer frame, with a conveyor rail fixedly connected to the top of the double-layer frame. A shielded tube body is slidably connected inside the conveyor rail. A conveying mechanism is located at the top right end of the double-layer frame. A cleaning box is fixedly connected to the top right side of the double-layer frame, and an inspection box is fixedly connected to the top left side of the double-layer frame. Cleaning grooves are provided on both the top right and bottom right sides of the conveyor rail. In this utility model, an electric telescopic rod drives a cleaning cloth to adhere to the surface of the shielded tube via a Velcro assembly for cleaning. An industrial camera, combined with an angled supplementary light, captures images, which are then transmitted to a display screen for analysis. This solves the problems of manual inspection interfering with impurity detection and inefficient, missed detections in traditional inspection processes, improving the automation level and accuracy of the inspection process.

Description

Technical Field

[0001] This utility model relates to the field of shielding tube testing technology, and in particular to a visual inspection device for surface defects of aging-resistant shielding tubes. Background Technology

[0002] Aging-resistant shielding tubes are used in the power and communication fields. Their surface defects directly affect product performance and service life. With the increasing demands for product quality in industrial production, traditional manual inspection methods are no longer sufficient to meet the inspection needs of large-scale production due to their low efficiency, strong subjectivity, and susceptibility to environmental interference. Visual inspection devices can significantly improve inspection efficiency and accuracy and reduce labor costs through automated processes and precise image analysis. They are especially suitable for products like aging-resistant shielding tubes that have stringent surface quality requirements.

[0003] Existing methods for detecting surface defects in aging-resistant shielding tubes still rely on manual visual inspection or simple mechanical testing. Manual inspection involves operators holding a light source and observing the surface of the shielding tube at close range, relying on experience to judge whether defects exist. While this method can avoid the high initial investment cost of automated equipment to some extent, it is limited by the resolution and fatigue of the human eye, making it difficult to detect micron-level defects. Furthermore, the detection efficiency is low and cannot meet the needs of assembly line production. Some companies have introduced traditional machine vision inspection equipment, which uses a fixed camera to capture images of the shielding tube surface and then uses software to analyze defects. This method has improved efficiency compared to manual inspection, but it has significant shortcomings in the cleaning and pretreatment stage.

[0004] Traditional inspection equipment involves cleaning and inspection separately, which can lead to residues left after contact with transport equipment or personnel during transport. These residues adhere to the surface of the shielded tube and can create artifacts or obscure defect features during inspection. Images captured by industrial cameras may be misjudged due to interference from impurities, resulting in missed or false defects and seriously affecting the quality of inspection. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a visual inspection device for surface defects of aging-resistant shielding tubes. It aims to improve the problem in the prior art where cleaning and inspection are carried out separately, resulting in residues left during transportation that are difficult to remove, thus causing misjudgments in images captured by industrial cameras due to interference from impurities.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a visual inspection device for surface defects of aging-resistant shielding tubes, comprising a double-layer frame, a conveyor rail fixedly connected to the top of the double-layer frame, a shielding tube body slidably connected inside the conveyor rail, a conveying mechanism provided at the top right end of the double-layer frame, a cleaning box fixedly connected to the top right side of the double-layer frame, and an inspection box fixedly connected to the top left side of the double-layer frame. Cleaning grooves are provided on both the top right and bottom right sides of the conveyor rail. Electric telescopic rods are fixedly connected to the top and bottom inner sides of the cleaning box. Cleaning cloths are fixedly connected to adjacent ends of the two electric telescopic rods via replacement components. Inspection grooves are provided on both the top left and bottom left sides of the conveyor rail. Industrial cameras are fixedly connected to the bottom left and top right inner sides of the inspection box. A supplementary lighting component is provided in the middle inner side of the inspection box. A display screen is fixedly connected to the top front side of the double-layer frame.

[0007] As a further description of the above technical solution:

[0008] The conveying mechanism includes a mounting plate, which is fixedly connected to the top right end of the double-layer frame. A drive motor is fixedly connected to the top front end of the mounting plate, and two limiting plates are fixedly connected to the top rear end of the mounting plate. Two rotating shafts are rotatably connected between the two limiting plates. The output end of the drive motor is fixedly connected to the front end of the bottom rotating shaft. Rubber conveying wheels are fixedly connected to the outside of each of the two rotating shafts, and gears are fixedly connected to the rear outside of each of the two rotating shafts. The two gears mesh with each other.

[0009] As a further description of the above technical solution:

[0010] The replacement component includes two hook and loop fasteners, which are respectively fixedly connected to the output ends of two electric telescopic rods. The outer surfaces of the two cleaning cloths are fixedly connected with hook and loop fabric, and the two hook and loop fasteners are respectively bonded to the two hook and loop fabric.

[0011] As a further description of the above technical solution:

[0012] The supplementary lighting assembly includes a partition, which is fixedly connected to the inner middle of the detection box. Supplementary lights are fixedly connected to the lower left side and the upper right side of the partition, and both supplementary lights adopt an angled design.

[0013] As a further description of the above technical solution:

[0014] Both the front right end of the cleaning box and the testing box are rotatably connected to a sealing plate, and both the front left side of the cleaning box and the testing box are fixedly connected to two magnetic blocks.

[0015] As a further description of the above technical solution:

[0016] A flame-retardant shell is fixedly connected to the right end of the double-layer frame, and a battery pack is fixedly connected inside the flame-retardant shell.

[0017] As a further description of the above technical solution:

[0018] Both of the rear ends of the two rotating shafts are fixedly connected to a protective plate, and the bottom of the top protective plate is attached between the bottom gear and the bottom protective plate.

[0019] As a further description of the above technical solution:

[0020] The bottom inner side of the conveyor track adopts a U-shaped design, and the bottom of the shielding tube body is attached to the bottom inner side of the conveyor track.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the shielding tube body is driven to slide on the conveying track by the conveying mechanism, and the electric telescopic rod drives the cleaning cloth to adhere to the surface of the shielding tube through the Velcro assembly for cleaning. The industrial camera, together with the tilt-designed supplementary light, takes pictures and transmits the images to the display screen for analysis. This achieves the effects of stable transmission of the shielding tube, removal of surface impurities, and accurate detection of defects. It solves the problems of manual detection of impurities interfering with detection and inefficient and missed detection in the traditional detection process, and improves the automation level and accuracy of the detection process.

[0023] 2. In this utility model, the bottom rotating shaft is driven by a drive motor. The gear on the bottom rotating shaft meshes with the gear on the top rotating shaft, causing the two rotating shafts to rotate synchronously. This drives the rubber conveying wheel, which uses friction to push the shielded tube body to slide within the conveying track. The limiting plate restricts the axial movement of the rotating shaft, thus achieving a stable and continuous conveying effect for the shielded tube body. This solves the problems of unstable power transmission and deviation / jamming during the conveying process in traditional conveying methods, providing a reliable conveying foundation for subsequent cleaning and testing processes. Attached Figure Description

[0024] Figure 1 This is a perspective view of the visual inspection device for surface defects of aging-resistant shielding tubes proposed in this utility model;

[0025] Figure 2 This is a front view of the visual inspection device for surface defects of aging-resistant shielded tubes proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the conveyor track in the visual inspection device for surface defects of aging-resistant shielded tubes proposed in this utility model;

[0027] Figure 4This is a structural breakdown diagram of the cleaning cloth in the visual inspection device for surface defects of aging-resistant shielded tubes proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the conveying mechanism in the visual inspection device for surface defects of aging-resistant shielded tubes proposed in this utility model;

[0029] Figure 6 This is a cross-sectional view of the flame-retardant shell in the visual inspection device for surface defects of aging-resistant shielded tubes proposed in this utility model.

[0030] Legend:

[0031] 1. Double-layer frame; 2. Conveying mechanism; 201. Mounting plate; 202. Drive motor; 203. Limiting plate; 204. Rotating shaft; 205. Rubber conveyor wheel; 206. Gear; 207. Guard plate; 3. Conveying track; 4. Shielding tube body; 5. Cleaning box; 6. Testing box; 7. Cleaning tank; 8. Electric telescopic rod; 9. Cleaning cloth; 10. Testing tank; 11. Industrial camera; 12. Display screen; 13. Hook and loop fastener; 14. Hook and loop rough fastener; 15. Partition; 16. Supplemental light; 17. Sealing plate; 18. Magnetic block; 19. Flame-retardant shell; 20. Battery pack. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a visual inspection device for surface defects of aging-resistant shielding tubes, comprising a double-layer frame 1, a conveyor track 3 fixedly connected to the top of the double-layer frame 1, a shielding tube body 4 slidably connected inside the conveyor track 3, a conveying mechanism 2 provided at the top right end of the double-layer frame 1, a cleaning box 5 fixedly connected to the top right side of the double-layer frame 1, and an inspection box 6 fixedly connected to the top left side of the double-layer frame 1. Cleaning grooves 7 are provided on both the top right and bottom right sides of the conveyor track 3. Electric telescopic rods 8 are fixedly connected to the top and bottom inner sides of the cleaning box 5. Cleaning cloths 9 are fixedly connected to adjacent ends of the two electric telescopic rods 8 via replacement components. The replacement components include two Velcro adhesive surfaces 13. 13 is fixedly connected to the output ends of the two electric telescopic rods 8 respectively. The outer surfaces of the two cleaning cloths 9 are fixedly connected with Velcro 14. The two Velcro adhesive surfaces 13 are respectively bonded to the two Velcro 14. The top left and bottom left of the conveyor track 3 are provided with detection slots 10. The bottom left and top right of the inside of the detection box 6 are fixedly connected with industrial cameras 11. The inner middle of the detection box 6 is provided with a supplementary light assembly, which includes a partition 15. The partition 15 is fixedly connected to the inner middle of the detection box 6. The lower left and upper right of the partition 15 are fixedly connected with supplementary lights 16. The two supplementary lights 16 are both designed with an angle. The top front of the double-layer frame 1 is fixedly connected with a display screen 12.

[0034] Specifically, the conveying mechanism 2 drives the shielding tube body 4 to slide within the conveying track 3, achieving stable transmission of the shielding tube and providing conditions for subsequent cleaning and testing processes. Through the cooperation of the conveying mechanism 2 and the conveying track 3, the shielding tube body 4 is transported in an orderly manner, thus solving the problem of unstable movement of the shielding tube during testing. When the shielding tube body 4 is transported to the bottom of the cleaning box 5, the electric telescopic rods 8 at the top and bottom of the inner side of the cleaning box 5 extend, driving the connected cleaning cloth 9 closer to the shielding tube body 4. The cleaning cloth 9 is fixed to the hook and loop fastener 14 at the output end of the electric telescopic rod 8 via the Velcro adhesive side 13. As the shielding tube body 4 continues to move, the cleaning cloth 9 contacts the surface of the shielding tube, wiping and cleaning it to remove dust and stains, achieving a cleaning effect on the surface of the shielding tube body 4, thereby preventing impurities from affecting the testing process. To address the issue of accuracy, after the cleaning cloth 9 has been used for a period of time, it can be directly peeled off and replaced using the Velcro adhesive side 13 and the Velcro tack side 14 to ensure cleaning effectiveness. After cleaning, the shielding tube body 4 continues to move along the conveyor track 3 and enters the inspection box 6. The industrial camera 11, fixed at the bottom left and top right of the inspection box 6, takes pictures from the top and bottom surfaces of the shielding tube body 4. At the same time, the supplementary lights 16 on both sides of the partition 15 in the middle of the inner side of the inspection box 6 are turned on. Since the supplementary lights 16 adopt an angled design, they can provide supplementary lighting to the surface of the shielding tube at a suitable angle to ensure clear images. The images captured by the industrial camera 11 are transmitted to the display screen 12 on the front of the top of the double-layer frame 1 for display and analysis, achieving the effect of accurate detection of surface defects of the shielding tube body 4, thereby solving the problems of low efficiency and easy omissions in manual inspection.

[0035] Reference Figure 1 , Figure 2 and Figure 5 The conveying mechanism 2 includes a mounting plate 201, which is fixedly connected to the top right end of the double-layer frame 1. A drive motor 202 is fixedly connected to the top front end of the mounting plate 201. Two limiting plates 203 are fixedly connected to the top rear end of the mounting plate 201. Two rotating shafts 204 are rotatably connected between the two limiting plates 203. The output end of the drive motor 202 is fixedly connected to the front end of the bottom rotating shaft 204. Rubber conveying wheels 205 are fixedly connected to the outside of each of the two rotating shafts 204. Gears 206 are fixedly connected to the rear side of the outside of each of the two rotating shafts 204. The two gears 206 mesh with each other.

[0036] Specifically, the mounting plate 201, serving as the basic carrier of the conveying mechanism 2, is fixedly connected to the top right end of the double-layer frame 1, providing mounting support for the drive motor 202 and the two limiting plates 203. After the drive motor 202 at the top front end of the mounting plate 201 starts, its output shaft generates rotational power, which is directly transmitted to the front end of the bottom rotating shaft 204 fixedly connected to it, causing the bottom rotating shaft 204 to start rotating. The gear 206 fixedly connected to the rear side of the bottom rotating shaft 204 rotates together with the shaft 204. Since the gears 206 on the rear side of the two rotating shafts 204 mesh with each other, the rotation of the bottom gear 206 transmits power to the top gear 206 through tooth meshing, thereby driving the top rotating shaft 204 to rotate synchronously. This gear meshing transmission method ensures the synchronicity and stability of the rotation of the two rotating shafts 204. Rubber transmission wheels 205 are fixedly connected to the outside of both rotating shafts 204. When the rotating shaft 204 rotates, the rubber transmission wheels 205 rotate accordingly. The rubber conveyor wheel 205 is in close contact with the surface of the shielding tube body 4. Utilizing the high frictional properties of the rubber material, the rotational motion of the rotating shaft 204 is converted into a horizontal thrust on the shielding tube body 4, pushing the shielding tube body 4 to slide within the conveyor track 3. Two limiting plates 203, fixedly connected to the top and rear end of the mounting plate 201, play a stabilizing role during the rotation of the rotating shaft 204. The two limiting plates 203 rotatably connect the two rotating shafts 204, limiting the axial movement range of the rotating shafts 204 to ensure that the rotating shafts 204 do not deviate during rotation, maintaining the stable meshing of the gears 206 and the effective contact between the rubber conveyor wheel 205 and the shielding tube body 4. This achieves stable and continuous conveying of the shielding tube body 4, solving the problems of unstable power transmission and deviation / jamming during conveying in traditional conveying methods. It provides a reliable conveying foundation for the subsequent cleaning and inspection processes of the visual inspection device for surface defects of aging-resistant shielding tubes, ensuring the smooth progress of the entire inspection process.

[0037] Reference Figure 3 , Figure 5 and Figure 6 The front right ends of the cleaning box 5 and the testing box 6 are rotatably connected to a sealing plate 17. The front left side of the interior of the cleaning box 5 and the testing box 6 are fixedly connected to two magnetic blocks 18. The right side of the interior of the double-layer frame 1 is fixedly connected to a flame-retardant shell 19. The interior of the flame-retardant shell 19 is fixedly connected to a battery pack 20. The rear ends of the two rotating shafts 204 are fixedly connected to a protective plate 207. The bottom of the top protective plate 207 is attached between the bottom gear 206 and the bottom protective plate 207. The bottom of the inner side of the conveying track 3 adopts a U-shaped design. The bottom of the shielding tube body 4 is attached to the bottom of the inner side of the conveying track 3.

[0038] Specifically, the sealing plate 17, which is rotatably connected to the front right end of the cleaning box 5 and the testing box 6, can be closed and adhered to the front of the box body during equipment operation. The magnetic block 18 on the front left side of the interior of the cleaning box 5 and the testing box 6 magnetically attracts the left side of the sealing plate 17, closing the sealing plate 17 with the box body and achieving a sealing effect on the internal space of the cleaning box 5 and the testing box 6. The flame-retardant shell 19 on the right end of the double-layer frame 1 is internally connected to the battery pack 20. The battery pack 20 provides power to the drive motor 202, the electric telescopic rod 8, the industrial camera 11, and the supplementary light 16. The flame-retardant shell 19 is made of flame-retardant material, which can prevent the spread of fire in case of accidents and ensure equipment safety. The setting of the flame-retardant shell 19 and the battery pack 20 achieves the effect of independent power supply for the equipment. The protective plate 207 is fixedly connected to the rear end of the two rotating shafts 204. The bottom of the top protective plate 207 is attached between the bottom gear 206 and the bottom protective plate 207, forming a protective enclosure for the gear 206. The protective plate 207 can block external debris from entering the meshing area of ​​the gear 206, preventing foreign objects from getting stuck and causing transmission failure. The bottom of the inner side of the conveyor track 3 adopts a U-shaped design, and the bottom of the shielding tube body 4 is attached to the bottom of the inner side of the conveyor track 3. The U-shaped track provides limiting support for the shielding tube body 4, preventing it from tipping over or shifting during transmission. With the friction drive of the rubber conveyor wheel 205, it ensures that the shielding tube body 4 slides stably along the track. When the equipment is started, the battery pack 20 provides power, and the drive motor 202 drives the rubber conveyor wheel 205 to rotate through the gear 206, pushing the shielding tube body 4 to move along the U-shaped conveyor track 3. When passing through the cleaning box 5, the sealing plate 17 closes, and the electric telescopic rod 8 drives the cleaning cloth 9 to clean the surface of the shielding tube. When entering the detection box 6, the sealing plate 17 closes, and the industrial camera 11 takes images under the supplementary light 16. The protective plate 207 protects the conveyor mechanism 2 throughout the process, preventing the gear 206 from causing accidental injury to the operator.

[0039] Working principle: The conveying mechanism 2 drives the shielding tube body 4 to slide within the conveying track 3, achieving stable transmission of the shielding tube and providing conditions for subsequent cleaning and testing processes. When the shielding tube body 4 is transmitted to the bottom of the cleaning box 5, the electric telescopic rods 8 at the top and bottom of the inner side of the cleaning box 5 extend, driving the connected cleaning cloth 9 closer to the shielding tube body 4. The cleaning cloth 9 is fixed to the hook and loop fastener 14 at the output end of the electric telescopic rod 8 through the hook and loop fastener 13. As the shielding tube body 4 continues to move, the cleaning cloth 9 contacts the surface of the shielding tube, wiping and cleaning it to remove dust and stains. After a period of use, the cleaning cloth 9 will adhere to the hook and loop fastener 14 through the hook and loop fastener 13. Surface 14 can be directly torn off for replacement, ensuring cleaning effect. After cleaning, the shielding tube body 4 continues to move along the conveyor track 3 and enters the bottom of the inspection box 6. The industrial camera 11, which is fixed at the bottom left and top right of the inspection box 6, takes pictures from the top and bottom surfaces of the shielding tube body 4. At the same time, the supplementary lights 16 on the left and right sides of the partition 15 in the middle of the inner side of the inspection box 6 are turned on. Since the supplementary lights 16 adopt an angled design, they can supplement the surface of the shielding tube at a suitable angle to ensure clear shooting. The images captured by the industrial camera 11 are transmitted to the display screen 12 on the front of the top of the double-layer frame 1 for display and analysis, thereby solving the problems of low efficiency and easy omission of manual inspection.

[0040] Furthermore, the mounting plate 201 is fixedly connected to the top right end of the double-layer frame 1, providing mounting support for the drive motor 202 and the two limiting plates 203. After the drive motor 202 starts, the output shaft generates rotational power, which is directly transmitted to the front end of the bottom rotating shaft 204 fixedly connected to it, causing the bottom rotating shaft 204 to start rotating. The gear 206 fixedly connected to the rear side of the bottom rotating shaft 204 rotates together with the shaft 204. Since the gears 206 on the rear side of the two rotating shafts 204 mesh with each other, the rotation of the bottom gear 206 transmits power to the top gear 206 through tooth meshing, thereby driving the top rotating shaft 204 to rotate synchronously. This gear meshing transmission method ensures the synchronicity and stability of the rotation of the two rotating shafts 204. Each part is fixedly connected with a rubber conveyor wheel 205. When the rotating shaft 204 rotates, the rubber conveyor wheel 205 rotates accordingly. The rubber conveyor wheel 205 is in close contact with the surface of the shielding tube body 4. Utilizing the high frictional properties of the rubber material, the rotational motion of the rotating shaft 204 is converted into a horizontal thrust on the shielding tube body 4, pushing the shielding tube body 4 to slide within the conveyor track 3. Two limiting plates 203 are fixedly connected to the top and rear ends of the mounting plate 201, which play a stabilizing role during the rotation of the rotating shaft 204. The two limiting plates 203 rotatably connect the two rotating shafts 204. By limiting the axial movement range of the rotating shaft 204, it is ensured that the rotating shaft 204 will not deviate during rotation, maintaining the stable meshing of the gear 206 and the effective contact between the rubber conveyor wheel 205 and the shielding tube body 4.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A device for visual detection of surface defects of anti-aging shield tubes, comprising a double-layer frame (1), characterized in that: The top of the double-layer frame (1) is fixedly connected to a conveyor rail (3), and the inside of the conveyor rail (3) is slidably connected to a shielding tube body (4). The top right end of the double-layer frame (1) is provided with a conveyor mechanism (2). The top right side of the double-layer frame (1) is fixedly connected to a cleaning box (5). The top left side of the double-layer frame (1) is fixedly connected to a detection box (6). The top right side and bottom right side of the conveyor rail (3) are both provided with cleaning grooves (7). The top and bottom inner sides of the cleaning box (5) are both fixedly connected with electric telescopic rods (8). The adjacent ends of the two electric telescopic rods (8) are both fixedly connected with cleaning cloths (9) through replacement components. The top left side and bottom left side of the conveyor rail (3) are both provided with detection grooves (10). The bottom left side and top right side of the detection box (6) are both fixedly connected with industrial cameras (11). The middle inner side of the detection box (6) is provided with a supplementary light component. The top front side of the double-layer frame (1) is fixedly connected to a display screen (12).

2. The visual inspection device for surface defects of aging-resistant shielding tubes according to claim 1, characterized in that: The conveying mechanism (2) includes a mounting plate (201), which is fixedly connected to the top right end of the double-layer frame (1). A drive motor (202) is fixedly connected to the top front end of the mounting plate (201), and two limiting plates (203) are fixedly connected to the top rear end of the mounting plate (201). Two rotating shafts (204) are rotatably connected between the two limiting plates (203). The output end of the drive motor (202) is fixedly connected to the front end of the bottom rotating shaft (204). Rubber conveying wheels (205) are fixedly connected to the outside of the two rotating shafts (204), and gears (206) are fixedly connected to the rear side of the outside of the two rotating shafts (204). The two gears (206) mesh with each other.

3. The visual inspection device for surface defects of aging-resistant shielding tubes according to claim 1, characterized in that: The replacement component includes two hook and loop fasteners (13), which are fixedly connected to the output ends of two electric telescopic rods (8). The outer surfaces of the two cleaning cloths (9) are fixedly connected with hook and loop fasteners (14), and the two hook and loop fasteners (13) are respectively bonded to the two hook and loop fasteners (14).

4. The visual inspection device for surface defects of aging-resistant shielding tubes according to claim 1, characterized in that: The supplementary lighting assembly includes a partition (15), which is fixedly connected to the inner middle of the detection box (6). Supplementary lights (16) are fixedly connected to the lower left side and the upper right side of the partition (15). Both supplementary lights (16) are designed with an angle.

5. The visual inspection device for surface defects of aging-resistant shielding tubes according to claim 1, characterized in that: The front right end of the cleaning box (5) and the testing box (6) are rotatably connected to a sealing plate (17), and the front left side of the cleaning box (5) and the testing box (6) are fixedly connected to two magnetic blocks (18).

6. The visual inspection device for surface defects of aging-resistant shielded tubes according to claim 1, characterized in that: A flame-retardant shell (19) is fixedly connected to the right end of the double-layer frame (1), and a battery pack (20) is fixedly connected inside the flame-retardant shell (19).

7. The visual inspection device for surface defects of aging-resistant shielding tubes according to claim 2, characterized in that: The rear ends of both shafts (204) are fixedly connected to guard plates (207), and the bottom of the top guard plate (207) is attached between the bottom gear (206) and the bottom guard plate (207).

8. The visual inspection device for surface defects of aging-resistant shielding tubes according to claim 1, characterized in that: The bottom of the inner side of the conveying track (3) adopts a U-shaped design, and the bottom of the shielding tube body (4) is attached to the bottom of the inner side of the conveying track (3).

Images