A thin-axle appearance detection device

By combining a black-and-white camera with a blue concentric light source, along with transportation and vibration components, the problem of incomplete images caused by camera position was solved, enabling high-precision automated inspection of the appearance of thin shafts and improving inspection efficiency and accuracy.

CN224317540UActive Publication Date: 2026-06-02GUANGDONG DESHENG AUTOMATION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG DESHENG AUTOMATION TECH CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing technologies, the camera is located at the top of the thin shaft, which prevents the external light source from fully illuminating the thin shaft to be detected, resulting in incomplete image capture and affecting the detection effect.

Method used

A monochrome camera combined with a blue concentric light source ensures high image resolution and clarity. Automated detection is achieved through transport and vibration components, and precise analysis is performed using image processing algorithms.

Benefits of technology

It achieves high-precision inspection of the appearance of thin shafts, reduces human error, improves inspection speed and accuracy, reduces color information interference, and lowers hardware costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224317540U_ABST
    Figure CN224317540U_ABST
Patent Text Reader

Abstract

The application relates to the technical field of industrial production detection, in particular to a fine shaft appearance detection device which comprises a work platform and a transportation assembly for transporting fine shafts on the work platform, one end of the transportation assembly is provided with a collection assembly, a vertical rod is arranged on one side of the transportation assembly and mounted on the work platform, a support rod is fixedly connected to the upper end of the vertical rod, a black-and-white camera is fixedly arranged at the tail end of the support rod, the shooting end of the black-and-white camera faces downward, and a blue concentric light source is arranged at the lower end of the black-and-white camera and mounted on the vertical rod. The application realizes shooting detection by judging the position of materials through optical fibers and photoelectricity.
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Description

Technical Field

[0001] This application relates to the field of industrial production testing technology, and in particular to a device for inspecting the appearance of thin shafts. Background Technology

[0002] Thin shafts typically refer to shaft parts with a slender shape and relatively small diameter. They are widely used in industries such as machinery, electronics, and instrumentation. As key components for transmission, support, or connection, the appearance quality of thin shafts directly affects their performance and lifespan. Therefore, precise appearance inspection methods are essential to ensure the quality of thin shafts.

[0003] An optical camera is used to capture images of thin shafts. Image processing algorithms are then used to analyze the images, extracting features such as the size, shape, and surface defects of the thin shafts. These features are then compared with preset standards to determine whether the thin shafts are qualified. However, since the camera is located at the top of the thin shaft when taking pictures, the external light source cannot fully illuminate the thin shaft to be inspected, which may result in the inability to fully capture the image. Therefore, this application proposes a thin shaft appearance inspection device to solve this technical problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide a fine shaft appearance inspection device to solve the technical problems in the background art.

[0005] The above-mentioned objective of this application is achieved through the following technical solution: a thin shaft appearance inspection device, including a working platform and a transport component on the working platform for transporting thin shafts. A collecting component is provided at one end of the transport component, and a vertical pole installed on the working platform is provided on one side of the transport component. A support rod is fixedly connected to the upper end of the vertical pole, and a black and white camera is fixedly provided at the end of the support rod. The shooting end of the black and white camera faces downward, and a blue concentric light source installed on the vertical pole is provided at the lower end of the black and white camera.

[0006] By adopting the above technical solution, this application uses a blue concentric light source at the bottom of a monochrome camera to acquire images of the thin shaft. During the inspection process, the camera takes vertical pictures to capture the appearance details of the thin shaft, providing basic data for subsequent image processing and analysis. The use of a 500W monochrome camera in this application ensures high resolution and clarity of the images, thereby achieving high-precision inspection of the thin shaft's appearance. This helps to accurately identify features such as knurling and chamfering on the thin shaft, as well as measure key dimensions such as shaft length. Compared with color cameras, monochrome cameras can reduce interference from color information when processing images, making the image processing algorithm simpler and more efficient. This helps to improve inspection speed and accuracy. This application uses fiber optics and photoelectric sensors to determine the material position for image capture and inspection.

[0007] Furthermore, the transport assembly includes a transport frame fixedly connected to the work platform, a plurality of drive shafts rotatably connected to the transport frame, a transport belt sleeved on the drive shafts, a drive frame fixedly installed on one side of the transport frame, a drive motor fixedly installed on the drive frame, and the transport belt also sleeved on the output end of the drive motor.

[0008] By adopting the above technical solution, the conveyor belt is driven by a drive motor to rotate, so that the thin shaft moves on the transport frame. When it reaches the bottom of the black and white camera, the captured image is processed and analyzed to ensure the accuracy and reliability of the detection. This enables precise detection of the appearance of the thin shaft, including key indicators such as whether there is knurling, whether there is chamfering, and shaft length.

[0009] Furthermore, the transport frame is fixedly equipped with blocking frames at both ends to prevent the thin shaft from detaching.

[0010] By adopting the above technical solution, the setting of the blocking frame can prevent the thin shaft from falling off the transport frame during transportation.

[0011] Furthermore, a vibration cabinet is installed on one end of the work platform, a vibration plate is installed on the vibration cabinet, a docking frame is located at the outlet of the vibration plate, a docking groove is provided on the docking frame, and a baffle plate is fixedly connected to the docking frame at the upper end of the docking groove.

[0012] By adopting the above technical solution, the bottom of the vibrating cabinet in this application is provided with a vibration component. The rotating component can be a vibration motor or the like, which drives the vibrating plate to vibrate. The upper end of the vibrating plate is inclined around the outlet. Therefore, during the vibration process, it will drive the thin shaft to slowly pass through the outlet and enter the docking frame for subsequent transportation.

[0013] Furthermore, the collection assembly includes a first collection box disposed at the end of the transport frame, a second collection box disposed on one side of the transport frame, a pushing assembly disposed on the transport frame, and a through groove provided on the end of the baffle plate near the second collection box.

[0014] By adopting the above technical solution, the fine shaft after testing will be moved to the first or second collection box via a conveyor belt. The first collection box is the collection area for qualified products, while the second collection box is the collection area for defective products. When defective products move to the through slot, they will be pushed into the second collection box by a pushing component.

[0015] Furthermore, the pushing assembly includes a pushing frame fixedly mounted on the transport frame, and a pushing rod is fixedly mounted on the pushing frame.

[0016] By adopting the above technical solution, the thin shaft of the defective product is quickly pushed into the second collection box by pushing the electric pole.

[0017] In summary, this application offers the following beneficial technical effects: Firstly, the device employs automation technology to achieve high-precision inspection of the appearance of thin shafts, effectively reducing errors and uncertainties that may arise from manual inspection, thereby significantly improving inspection efficiency and accuracy, and ensuring the stability and consistency of product quality. Secondly, the ingenious combination of a monochrome camera and a blue concentric light source in the device not only simplifies the image processing workflow but also significantly reduces the interference of color information on the inspection results, making the image processing algorithm more efficient, further improving inspection speed and accuracy, while simultaneously reducing dependence on and cost of image processing hardware. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in the embodiment;

[0019] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the transport component structure in the embodiment;

[0021] Figure 4 yes Figure 3 Enlarged view of section B in the middle.

[0022] Reference numerals: 1. Working platform; 2. Transport frame; 21. Drive shaft; 22. Conveyor belt; 23. Drive frame; 24. Drive motor; 25. Blocking frame; 26. Pushing frame; 27. Pushing pole; 28. Through slot; 3. Vibration cabinet; 31. Vibration plate; 32. Docking frame; 33. Blocking plate; 34. Docking slot; 4. Upright pole; 41. Support pole; 42. Black and white camera; 43. Blue concentric light source; 44. First collection box; 45. Second collection box. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] Example, refer to Figures 1-4 A thin shaft appearance inspection device includes a working platform 1 and a transport component on the working platform 1 for transporting the thin shaft. A collection component is provided at one end of the transport component, and a vertical rod 4 is provided on one side of the transport component and installed on the working platform 1. A support rod 41 is fixedly connected to the upper end of the vertical rod 4, and a black and white camera 42 is fixedly provided at the end of the support rod 41. The shooting end of the black and white camera 42 faces downward, and a blue concentric light source 43 is provided at the lower end of the black and white camera 42 and installed on the vertical rod 4. This application uses optical fiber and photoelectric to determine the position of the material and perform shooting inspection.

[0025] In this application, a blue concentric light source 43 is placed at the bottom of the monochrome camera 42. It should be explained that the blue concentric light source 43 is an illumination device that uses the blue wavelength band (typically in the range of 450-495 nanometers), possessing high brightness and high contrast characteristics. Simultaneously, the monochrome camera 42 is used to acquire images of the thin shaft. During the inspection process, the camera takes images vertically, capturing the appearance details of the thin shaft and providing basic data for subsequent image processing and analysis. The use of a 500W monochrome camera 42 in this application ensures high resolution and clarity of the images, thereby achieving high-precision inspection of the thin shaft's appearance. This helps to accurately identify features such as knurling and chamfering on the thin shaft, as well as measure key dimensions such as shaft length. Compared to a color camera, the monochrome camera 42 reduces interference from color information when processing images, making the image processing algorithm simpler and more efficient. This contributes to improving inspection speed and accuracy.

[0026] In this embodiment, the transport component includes a transport frame 2 fixedly connected to the work platform 1. Multiple drive shafts 21 are rotatably connected to the transport frame 2, and a transport belt 22 is fitted onto each drive shaft 21. A drive frame 23 is fixedly mounted on one side of the transport frame 2, and a drive motor 24 is fixedly mounted on the frame. The transport belt 22 is also fitted onto the output end of the drive motor 24. The drive motor 24 drives the transport belt 22 to rotate, causing the thin shaft to move on the transport frame 2. When it reaches the bottom of the black and white camera 42, the captured image is used for subsequent processing and analysis to ensure the accuracy and reliability of the detection. This allows for precise inspection of the thin shaft's appearance, including key indicators such as the presence of knurling, chamfering, and shaft length.

[0027] In this embodiment, the transport frame 2 is fixedly equipped with blocking frames 25 at both ends to prevent the thin shaft from detaching. The blocking frames 25 can prevent the thin shaft from detaching from the transport frame 2 during transportation.

[0028] In this embodiment, a vibration cabinet 3 is installed on one end of the working platform 1, a vibration plate 31 is installed on the vibration cabinet 3, a docking frame 32 is installed at the outlet of the vibration plate 31, a docking groove 34 is provided on the frame, and a baffle plate 33 is fixedly connected to the docking frame 32 at the upper end of the docking groove 34.

[0029] In this application, the bottom of the vibrating cabinet 3 is provided with a vibration component. This rotating component can be a vibration motor or the like, which drives the vibrating plate 31 to vibrate. The upper part of the vibrating plate 31 is inclined around the outlet. Therefore, during the vibration process, it will drive the thin shaft to slowly pass through the outlet and enter the docking frame 32 for subsequent transportation.

[0030] In this embodiment, the collection assembly includes a first collection box 44 located at the end of the transport frame 2, and a second collection box 45 located on one side of the transport frame 2. A pushing assembly is provided on the transport frame 2, and a through groove 28 is formed on the end of the baffle plate 33 near the second collection box 45. After inspection, the thin shaft will be moved via the transport belt 22 to either the first collection box 44 or the second collection box 45. The first collection box 44 is for collecting qualified products, while the second collection box 45 is for collecting defective products. When a defective product moves out of the through groove 28, it will be pushed into the second collection box 45 by the pushing assembly.

[0031] In this embodiment, the pushing assembly includes a pushing frame 26 fixedly mounted on the transport frame 2, and a pushing rod 27 fixedly mounted on the pushing frame 26. The pushing rod 27 is used to quickly push the thin shaft of the defective product into the second collection box 45.

[0032] Specific implementation process: During the inspection process, the camera takes vertical photos to capture the appearance details of the thin shaft, providing basic data for subsequent image processing and analysis. Using a 500W monochrome camera 42 ensures high resolution and clarity of the image, enabling high-precision inspection of the thin shaft's appearance, including key indicators such as the presence of knurling, chamfering, and shaft length. Compared to a color camera, the monochrome camera 42 reduces interference from color information during image processing, making the image processing algorithm simpler and more efficient, thus improving inspection speed and accuracy. Furthermore, a vibration cabinet 3 is installed at one end of the work platform 1, and a vibration plate 31 is installed on the vibration cabinet 3. A vibration component (such as a vibration motor) is installed at the bottom of the vibration plate 31, driving it to vibrate. The upper end of the vibration plate 31 is angled towards the outlet, and during vibration, it slowly carries the thin shaft through the outlet into the docking frame 32. The docking frame 32 has a docking groove 34, and a baffle plate 33 is fixedly connected to the docking frame 32 at the upper end of the docking groove 34 to guide the thin shaft into the transport assembly. After inspection, the thin shafts are moved via conveyor belt 22 to the subsequent collection components. The collection components include a first collection box 44 (for qualified products) and a second collection box 45 (for defective products) located at the end of the transport frame 2. The transport frame 2 is equipped with a pushing component, including a pushing frame 26 and a pushing rod 27 fixedly mounted on the transport frame 2. When a defective product moves to the through slot 28, the pushing rod 27 quickly pushes the defective thin shaft into the second collection box 45, thus achieving automatic sorting and collection of qualified and defective products.

[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for inspecting the appearance of a thin shaft, characterized in that, The device includes a working platform (1) and a transport assembly on the working platform (1) for transporting a thin shaft. One end of the transport assembly is provided with a collecting assembly. A vertical rod (4) installed on the working platform (1) is provided on one side of the transport assembly. A support rod (41) is fixedly connected to the upper end of the vertical rod (4). A black and white camera (42) is fixedly provided at the end of the support rod (41). The shooting end of the black and white camera (42) faces downward. A blue concentric light source (43) installed on the vertical rod (4) is provided at the lower end of the black and white camera (42).

2. The thin shaft appearance inspection device according to claim 1, characterized in that, The transport assembly includes a transport frame (2) fixedly connected to the work platform (1), a plurality of drive shafts (21) are rotatably connected to the transport frame (2), a transport belt (22) is sleeved on the drive shaft (21), a drive frame (23) is fixedly installed on one side of the transport frame (2), a drive motor (24) is fixedly installed on the drive frame (23), and the transport belt (22) is also sleeved on the output end of the drive motor (24).

3. The thin shaft appearance inspection device according to claim 2, characterized in that, The transport frame (2) is fixedly equipped with blocking frames (25) at both ends to prevent the thin shaft from falling off.

4. The thin shaft appearance inspection device according to claim 3, characterized in that, A vibration cabinet (3) is installed on one end of the working platform (1). A vibration plate (31) is installed on the vibration cabinet (3). A docking frame (32) is located at the outlet of the vibration plate (31). A docking groove (34) is provided on the docking frame (32). A baffle plate (33) is fixedly connected to the docking frame (32) at the upper end of the docking groove (34).

5. The thin shaft appearance inspection device according to claim 4, characterized in that, The collection assembly includes a first collection box (44) located at the end of the transport frame (2), a second collection box (45) located on one side of the transport frame (2), a pushing assembly located on the transport frame (2), and a through groove (28) located on one end of the baffle plate (33) near the second collection box (45).

6. The thin shaft appearance inspection device according to claim 5, characterized in that, The pushing assembly includes a pushing frame (26) fixedly mounted on the transport frame (2), and a pushing rod (27) is fixedly mounted on the pushing frame (26).