Pipe production offline quality detection device

By combining adjustable limit components, vision cameras, and moving components, the problems of low efficiency and unstable accuracy in traditional manual inspection are solved, enabling efficient and automated quality inspection of pipe production lines.

CN224203062UActive Publication Date: 2026-05-05SHANDONG BAIRUI ENVIRONMENTAL PROTECTION & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG BAIRUI ENVIRONMENTAL PROTECTION & TECH
Filing Date
2025-05-22
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Traditional manual inspection of pipe quality is inefficient and has inconsistent accuracy, making it difficult to meet the needs of modern, large-scale, and high-standard pipe production.

Method used

By employing adjustable limiting components, vision cameras, and moving components, combined with lifting and supporting components, the system achieves precise positioning of pipes, all-around imaging, and automatic defect identification, and utilizes image processing algorithms for detection.

Benefits of technology

It improves detection efficiency and accuracy, can adapt to pipes of different diameters, and achieves automated and accurate identification and classification of appearance defects.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224203062U_ABST
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Abstract

The utility model discloses a pipe production offline quality detection device, which belongs to the technical field of pipe detection and comprises an equipment bottom plate, a pair of hexagonal mounting frames are arranged on one side of the top of the equipment bottom plate, and adjustable limiting components are arranged on the two hexagonal mounting frames in a circumferential array manner. Fixing seats distributed in a circumferential array mode are installed between the two hexagonal installation frames, visual cameras are fixedly installed on the fixing seats, the bottoms of the two hexagonal installation frames are each fixedly connected with a pair of supporting rods, and one end of each supporting rod is fixed to the top of the equipment bottom plate. A lifting bearing assembly is connected to the position, located on one side of the hexagonal mounting frame, of the top of the equipment bottom plate, a to-be-detected pipe is arranged on the lifting bearing assembly, and one end of the to-be-detected pipe is arranged in the adjustable limiting assembly in a penetrating mode. And meanwhile, the pipes with different diameters can be conveyed in a limited mode, and practicability is high.
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Description

Technical Field

[0001] This utility model relates to a quality inspection device for pipe production lines, belonging to the field of pipe inspection technology. Background Technology

[0002] In the complex process of pipe production, quality inspection is crucial, directly determining whether the product meets established standards and precisely matches the stringent market demands. Traditional manual inspection relies primarily on inspectors visually examining the pipes for scratches, dents, bubbles, and other defects, then using simple measuring tools to measure dimensions such as diameter and wall thickness. This process is extremely tedious, requiring inspectors to concentrate for extended periods, resulting in immense workload and very low efficiency.

[0003] Meanwhile, the accuracy of manual inspection is significantly affected by human factors. Different inspectors have different eyesight, experience, and fatigue levels, and their judgment criteria for defects and their operating techniques for dimensional measurement vary. For example, experienced inspectors may accurately identify minor scratches, while novices may easily overlook them; when measuring pipe wall thickness, slight deviations in the measuring angle and force can cause fluctuations in the measurement results, making it difficult to guarantee the consistency and accuracy of the inspection results.

[0004] Currently, pipe production is expanding rapidly, with the number of production lines increasing and pipe output significantly rising. Simultaneously, market demands for pipe quality are also rising, requiring not only higher strength and more stable chemical properties, but also increasingly stringent standards for appearance quality and dimensional accuracy. Under these circumstances, the shortcomings of traditional manual inspection in terms of both efficiency and accuracy are magnified, rendering it completely inadequate to meet the demands of modern, large-scale, and high-standard pipe production. Utility Model Content

[0005] The purpose of this utility model is to provide a quality inspection device for pipe production lines in order to solve the above problems. It has a simple structure, high inspection efficiency, and can limit the conveying of pipes of different diameters, making it highly practical.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a quality inspection device for pipe production lines, comprising an equipment base plate, a pair of hexagonal mounting frames on one side of the top of the equipment base plate, adjustable limiting components arranged in a circular array on both hexagonal mounting frames, a fixed seat arranged in a circular array between the two hexagonal mounting frames, a vision camera fixedly mounted on the fixed seat, a pair of support rods fixedly connected to the bottom of both hexagonal mounting frames, one end of the support rods fixed to the top of the equipment base plate, a lifting support assembly connected to the top of the equipment base plate and located on one side of the hexagonal mounting frames, a pipe to be inspected arranged on the lifting support assembly, one end of the pipe to be inspected passing through the adjustable limiting component, the adjustable limiting component being used to limit the pipe to be inspected and allow it to move, the vision camera being used to photograph the pipe to be inspected, and a moving component for pushing the pipe to be inspected to move on the top of the equipment base plate.

[0007] Preferably, in order to ensure that the various adjustable telescopic rods are evenly distributed, the adjustable limiting assembly includes six adjustable telescopic rods, which are arranged in a circular array and fixed to the outer wall of the hexagonal mounting frame. One end of each adjustable telescopic rod is fixedly connected to a connecting plate.

[0008] Preferably, in order to allow the limiting ball to rotate within the rotating sleeve, the bottom of the connecting plate is bolted with a rotating sleeve, the rotating sleeve has a rotating groove, and the limiting ball is rotatably installed within the rotating groove, with the pipe to be tested located between multiple limiting balls.

[0009] Preferably, in order to change the height of the U-shaped frame, the lifting support assembly is fixed to a pair of lifting telescopic rods on the top of the equipment base plate, and the top of the lifting telescopic rods is fixedly connected to the U-shaped frame.

[0010] Preferably, in order to receive one end of the pipe to be tested by the rotating rod, a side plate is fixed to the top of the U-shaped frame, and a rotating rod is rotatably mounted on the side plate, with the pipe to be tested located at the top of the rotating rod.

[0011] Preferably, in order to install the strip plate, the moving assembly includes an L-shaped rod fixed to both ends of the top of the equipment base plate, and a strip plate with a rectangular hole in the middle is fixed to one end of the L-shaped rod.

[0012] Preferably, in order to rotate the drive screw, a drive motor is installed on the outer wall of the strip plate, a drive screw is fixed on the output shaft of the drive motor, one end of the drive screw is rotatably installed in a rectangular hole in the strip plate, and a drive block is threadedly connected to the drive screw.

[0013] Preferably, in order to allow the position of the push plate to be changed, a displacement telescopic rod is fixed to the bottom of the drive block, and a push plate is installed at one end of the displacement telescopic rod.

[0014] The beneficial effects of this utility model are:

[0015] 1. Equipped with an adjustable limiting component, a vision camera, a moving component, and a lifting support component, it enables effective detection of pipe appearance defects. The lifting support component provides stable support to one end of the pipe to be inspected, ensuring the pipe's stability during the inspection process. The adjustable limiting component has a dual function: firstly, it can precisely limit the pipe to be inspected, ensuring that the pipe moves along a predetermined path during the inspection process; secondly, the component has good adjustability and can be flexibly adjusted according to the diameter of different pipes, thereby adapting to the limiting requirements of various pipe specifications.

[0016] 2. The moving component provides power for the displacement of the pipe to be inspected, pushing the pipe to move at a set speed and direction. During the displacement of the pipe, multiple vision cameras arranged in a circular array are activated simultaneously to capture images of the outer surface of the pipe from all angles. The image data collected by the vision cameras is transmitted to the external detection unit in real time. The external detection unit is equipped with advanced image processing algorithms and recognition models. After receiving the image data, it can automatically extract features from the surface of the pipe in the image and identify possible surface defects, such as scratches, cracks, and holes, by comparing them with preset standard features, and accurately classify these defects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the hexagonal mounting frame in this utility model.

[0019] Figure 3 This is a schematic diagram of the adjustable limiting component in this utility model.

[0020] Figure 4 This is a schematic diagram of the lifting support component in this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the movable component in this utility model.

[0022] In the diagram: 1. Equipment base plate; 2. Hexagonal mounting frame; 3. Adjustable limit assembly; 301. Adjustable telescopic rod; 302. Connecting plate; 303. Rotating sleeve; 304. Limiting ball; 4. Fixed seat; 5. Vision camera; 6. Support rod; 7. Lifting support assembly; 701. Lifting telescopic rod; 702. U-shaped frame; 703. Side plate; 704. Rotating rod; 8. Moving assembly; 801. L-shaped rod; 802. Strip plate; 803. Drive motor; 804. Drive screw; 805. Drive block; 806. Displacement telescopic rod; 807. Push plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0024] Please see Figures 1-5 As shown, a quality inspection device for pipe production lines includes a base plate 1. A pair of hexagonal mounting frames 2 are provided on one side of the top of the base plate 1. Adjustable limiting components 3 are arranged in a circular array on each of the two hexagonal mounting frames 2. Fixed seats 4, arranged in a circular array, are installed between the two hexagonal mounting frames 2. A vision camera 5 is fixedly mounted on the fixed seats 4. A pair of support rods 6 are fixedly connected to the bottom of each of the two hexagonal mounting frames 2. One end of each support rod 6 is fixed to the top of the base plate 1. A lifting support assembly 7 is connected to the top of the base plate 1, located on one side of the hexagonal mounting frames 2. A pipe to be inspected is placed on the lifting support assembly 7, with one end of the pipe passing through the adjustable limiting components 3. The adjustable limiting components 3 are used to limit the movement of the pipe to be inspected and allow it to shift. The vision camera 5 is used to inspect the pipe. During the shooting process, a moving component 8 is installed on the top of the equipment base plate 1 to push the pipe to be inspected. After the pipe to be inspected is placed on the lifting support component 7 and one end of the pipe to be inspected is placed in the adjustable limiting component 3, the user can activate the moving component 8. After the moving component 8 is activated, the pipe to be inspected can be pushed from one end. At this time, multiple vision cameras 5 distributed in a circumferential array are activated simultaneously to take pictures of the outer surface of the pipe from all directions. The image data collected by the vision cameras 5 will be transmitted to the external detection unit in real time. The external detection unit is equipped with advanced image processing algorithms and recognition models. After receiving the image data, it can automatically extract features from the surface of the pipe in the image. By comparing it with the preset standard features, it can identify possible surface defects, such as scratches, cracks, holes, etc., and accurately classify these defects.

[0025] The adjustable limiting assembly 3 includes six adjustable telescopic rods 301, which are electrically controlled. These rods are arranged in a circular array and fixed to the outer wall of the hexagonal mounting frame 2. One end of each rod is fixedly connected to a connecting plate 302. A rotating sleeve 303 is bolted to the bottom of the connecting plate 302. A rotating groove is formed inside the rotating sleeve 303, and a limiting ball 304 is rotatably installed within the groove. The pipe to be inspected is positioned between the multiple limiting balls 304. The adjustable limiting assembly 3 has a dual function: firstly, it can... The pipe is precisely positioned to ensure that it moves along a predetermined path during the inspection process. On the other hand, the component has good adjustability and can be flexibly adjusted according to the diameter of different pipes, thereby adapting to the positioning requirements of various pipe specifications. If it is necessary to position a pipe with a smaller diameter, the user can adjust the telescopic rod 301 to drive the connecting plate 302 to move, which in turn drives the rotating sleeve 303 and the limiting ball 304 to move. After adjusting multiple limiting balls 304, the pipe with a smaller diameter can be positioned. Since the limiting ball 304 can rotate, it can move the pipe while positioning it.

[0026] The lifting support assembly 7 is fixed to a pair of lifting telescopic rods 701 on the top of the equipment base plate 1. A U-shaped frame 702 is fixedly connected to the top of the lifting telescopic rods 701. A side plate 703 is fixed to the top of the U-shaped frame 702. A rotating rod 704 is rotatably installed on the side plate 703. The pipe to be tested is located on the top of the rotating rod 704. The lifting support assembly 7 can support one end of the pipe to ensure stability. After the adjustable limit assembly 3 fixes the smaller pipe, if the rotation displacement remains unchanged, it will not contact the outer surface of the smaller diameter pipe. Therefore, the user can change the height of the U-shaped frame 702 and the rotating rod 704 through the lifting telescopic rods 701.

[0027] The moving component 8 includes L-shaped rods 801 fixed to both ends of the top of the equipment base plate 1. A strip plate 802 with a rectangular hole in the middle is fixed to one end of the L-shaped rod 801. A drive motor 803 is mounted on the outer wall of the strip plate 802. A drive screw 804 is fixed to the output shaft of the drive motor 803. One end of the drive screw 804 is rotatably installed in the rectangular hole on the strip plate 802. A drive block 805 is threadedly connected to the drive screw 804. The bottom of the drive block 805 is fixed with... The displacement telescopic rod 806 has a push plate 807 installed at one end. When it is necessary to push the pipe to be tested, the user can make the displacement telescopic rod 806 work to drive the push plate 807 down until the push plate 807 is located on one side of the end of the pipe to be tested. Then, the user can drive the drive screw 804 to rotate in place by the drive motor 803. At this time, the drive block 805, the displacement telescopic rod 806 and the push plate 807 can be moved. When the push plate 807 moves, it can push the pipe to be tested.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quality inspection device for pipe production lines, characterized in that: The equipment includes a base plate (1), on one side of the top of the base plate (1) are a pair of hexagonal mounting frames (2), and adjustable limiting components (3) are arranged in a circular array on both hexagonal mounting frames (2). A fixed seat (4) is arranged in a circular array between the two hexagonal mounting frames (2), and a vision camera (5) is fixedly mounted on the fixed seat (4). A pair of support rods (6) are fixedly connected to the bottom of both hexagonal mounting frames (2), and one end of the support rod (6) is fixed to the top of the base plate (1). A lifting support assembly (7) is connected to the top of the equipment base plate (1) and to one side of the hexagonal mounting frame (2). The lifting support assembly (7) is provided with a pipe to be tested. One end of the pipe to be tested is inserted into an adjustable limiting assembly (3). The adjustable limiting assembly (3) is used to limit the pipe to be tested and enable it to move. The vision camera (5) is used to take pictures of the pipe to be tested. A moving assembly (8) is provided on the top of the equipment base plate (1) to push the pipe to be tested to move.

2. The pipe production line quality inspection device according to claim 1, characterized in that: The adjustable limiting component (3) includes six adjustable telescopic rods (301), which are arranged in a circular array and fixed to the outer wall of the hexagonal mounting frame (2). One end of each adjustable telescopic rod (301) is fixedly connected to a connecting plate (302).

3. The pipe production line quality inspection device according to claim 2, characterized in that: The bottom of the connecting plate (302) is bolted with a rotating sleeve (303), and a rotating groove is provided inside the rotating sleeve (303). A limiting ball (304) is rotatably installed in the rotating groove, and the pipe to be tested is located between multiple limiting balls (304).

4. The pipe production line quality inspection device according to claim 1, characterized in that: The lifting support assembly (7) is fixed to a pair of lifting telescopic rods (701) on the top of the equipment base plate (1), and a U-shaped frame (702) is fixedly connected to the top of the lifting telescopic rods (701).

5. The pipe production line quality inspection device according to claim 4, characterized in that: The top of the U-shaped frame (702) is fixed with a side plate (703), and a rotating rod (704) is rotatably mounted on the side plate (703). The pipe to be tested is located on the top of the rotating rod (704).

6. The pipe production line quality inspection device according to claim 1, characterized in that: The moving component (8) includes an L-shaped rod (801) fixed at both ends of the top of the equipment base plate (1), and a strip plate (802) with a rectangular hole in the middle is fixed at one end of the L-shaped rod (801).

7. The pipe production line quality inspection device according to claim 6, characterized in that: A drive motor (803) is installed on the outer wall of the strip plate (802). A drive screw (804) is fixed on the output shaft of the drive motor (803). One end of the drive screw (804) is rotatably installed in a rectangular hole on the strip plate (802). A drive block (805) is threaded onto the drive screw (804).

8. The pipe production line quality inspection device according to claim 7, characterized in that: The bottom of the drive block (805) is fixed with a displacement telescopic rod (806), and a push plate (807) is installed at one end of the displacement telescopic rod (806).