Automatic detection device for weld seam flaw detection

Abstract

The utility model relates to an automatic detection device for weld flaw detection, and belongs to the technical field of nondestructive detection. Comprising a base plate assembly, a front wheel support assembly, a control module, a magnetic adsorption walking module, a magnetic powder detection module, a magnetic suspension spraying system and an automatic weld seam seeking sensor, the magnetic adsorption walking module comprises a plurality of permanent magnet wheels and corresponding permanent magnet wheel rotating shafts; the permanent magnet wheel is installed on the base plate assembly or the front wheel support assembly through the permanent magnet wheel rotating shaft and can rotate around the permanent magnet wheel rotating shaft in the radial direction so as to adapt to magnetic adsorption attachment of the complex curved surface. The device is directly attached to the surface of a ferromagnetic workpiece to walk through the magnetic adsorption capacity of the permanent magnet wheels, a scaffold does not need to be erected or an unmanned aerial vehicle does not need to be relied on, the tedious procedures of high-altitude climbing and scaffold erecting and dismantling are avoided, and the falling risk of high-altitude operation is remarkably reduced; and meanwhile, scaffold materials are saved, and the manual building cost is reduced.

Description

Technical Field

[0001] This utility model relates to an automatic inspection device for weld flaw detection, belonging to the field of non-destructive testing technology. Background Technology

[0002] Magnetic particle testing is a non-destructive testing method that detects defects on or near the surface of ferromagnetic materials by utilizing the accumulation of magnetic particles in a leakage magnetic field near defects. The workpiece, made of magnetic materials such as steel, is magnetized, and the leakage magnetic field at the defect location attracts the magnetic particles. The distribution of the magnetic particles reveals the surface and near-surface defects of the object being tested. This method is characterized by its simplicity and intuitive display, making it an important non-destructive testing method.

[0003] Traditional magnetic particle testing involves erecting scaffolding and having workers use handheld flaw detectors. Scaffolding-based testing is a high-altitude, dangerous operation. Using drones for testing is costly and dangerous. It's difficult to perform testing in confined spaces, high-radiation environments, or toxic / hazardous environments. It's also difficult to perform testing in environments where scaffolding is not permitted or possible. Existing technologies include automated testing devices, such as the magnetic particle non-destructive testing device disclosed in patent application CN218298119U. This device includes a remote control handle, a support, and a receiving and control device, a walking device, a magnetic particle stirring device, a magnetic particle spraying device, and a magnetic particle detection device fixed on the support. All three devices are communicatively connected to the receiving and control device. However, because the testing components cannot be rotated or adjusted, the magnetic particle detection device cannot adapt to different curved surfaces during testing, limiting the testing environment. Utility Model Content

[0004] The purpose of this invention is to propose an automatic detection device for weld flaw detection, thereby solving the problems existing in the prior art.

[0005] The automatic inspection device for weld flaw detection described in this utility model includes:

[0006] The system comprises a substrate assembly, a front wheel bracket assembly, a control module, and a magnetic adsorption walking module, a magnetic powder detection module, a magnetic suspension spraying system, and an automatic weld seam locator connected to the control module. The front wheel bracket assembly is connected to the substrate assembly via a front wheel bracket shaft and can rotate axially around the front wheel bracket shaft. The magnetic adsorption walking module, magnetic powder detection module, magnetic suspension spraying system, control module, and automatic weld seam locator are all mounted on the substrate assembly or the front wheel bracket assembly. The magnetic adsorption walking module includes a permanent magnet wheel and a corresponding permanent magnet wheel rotation shaft. The permanent magnet wheel is mounted on the substrate assembly or the front wheel bracket assembly via the permanent magnet wheel rotation shaft and can rotate radially around the permanent magnet wheel rotation shaft to adapt to the magnetic adsorption bonding of complex curved surfaces.

[0007] Preferably, the magnetic adsorption walking module includes four permanent magnet wheels and corresponding permanent magnet wheel rotation shafts; the two permanent magnet wheels located at the front are mounted on the front wheel bracket assembly, and the two permanent magnet wheels located at the rear are mounted on the base plate assembly.

[0008] Preferably, the control module is connected to a remote controller via an antenna, and the remote controller controls the device's walking, steering, magnetic suspension spraying, and magnetic yoke lifting actions.

[0009] Preferably, the magnetic particle detection module includes a liftable magnetic yoke, which integrates a white light, a purple light, and a camera to collect magnetic particle distribution images during magnetization of the weld and transmit them back to the remote controller.

[0010] Preferably, the magnetic suspension spraying system includes a magnetic suspension nozzle, a liquid pump, and a magnetic suspension connection port; the magnetic suspension connection port is connected to a magnetic suspension tank, and the liquid pump is used to pump the magnetic suspension in the magnetic suspension tank to the magnetic suspension nozzle for spraying through a hose.

[0011] Preferably, it also includes a power supply, which is a self-rechargeable power supply equipped with a charging port and a screen for displaying battery status, power level, and battery life.

[0012] Preferably, the device can be expanded to include non-destructive testing components, such as thickness gauges, ACFM probes, or X-ray inspection modules.

[0013] The automatic inspection device and concentrating solar collector for weld flaw detection described in this utility model have the following beneficial effects:

[0014] Eliminate the risks of working at heights and reduce construction costs:

[0015] The device moves by directly attaching to the surface of ferromagnetic workpieces through the magnetic adsorption capacity of permanent magnet wheels, eliminating the need for scaffolding or drones. This avoids the cumbersome procedures of climbing at heights, scaffolding construction and dismantling, and significantly reduces the risk of falls from heights. It also saves on the costs of scaffolding materials and labor.

[0016] Strong surface adaptability ensures detection stability:

[0017] It adopts a dual adaptive structure of "radial rotation of permanent magnet wheel + axial rotation of front wheel bracket":

[0018] The permanent magnet wheel can rotate radially via the permanent magnet wheel rotation axis (such as swinging around the wheel center in a vertical direction), adapting to curved surfaces with different curvatures (such as the outer surface of pipes and the end caps of spherical tanks);

[0019] The front wheel bracket assembly rotates axially with the base plate assembly via the front wheel bracket pivot (such as swinging around the horizontal axis of the device's forward direction) to further compensate for the height difference of the complex curved surface;

[0020] The dual adaptive design enables the device to adhere to curved workpieces such as spherical tanks and pipes, avoiding equipment detachment or detection deviation due to weak adhesion, and significantly improving detection stability.

[0021] Multi-scenario environmental adaptability, expanding the detection range:

[0022] The device can be remotely operated via remote control, allowing personnel to safely perform scene testing without entering the testing site;

[0023] Automated testing processes improve efficiency and accuracy:

[0024] The automatic weld seam sensor can identify the weld seam trajectory in real time, and the control device moves automatically along the weld seam without the need for manual path adjustment, thus improving the detection efficiency compared to a handheld flaw detector. Attached Figure Description

[0025] Figure 1 : A schematic diagram of the structure of this utility model from the first angle;

[0026] Figure 2 : A schematic diagram of the structure of this utility model from the second angle;

[0027] Figure 3 : A schematic diagram of the structure of the magnetic suspension tank in this utility model;

[0028] Figure 4 : Circuit connection diagram of the control module in this utility model;

[0029] Figure 5 The circuit diagram of the control module in this utility model;

[0030] In the diagram: 1. Permanent magnet wheel; 2. Liftable magnetic yoke; 3. Permanent magnet wheel rotation shaft; 4. Magnetic suspension nozzle; 5. Antenna; 6. Control module; 7. Power supply; 8. Camera; 9. Magnetic suspension connection port; 10. Liquid pump; 11. Base plate assembly; 12. Front wheel bracket assembly; 13. Front wheel bracket shaft; 14. Automatic weld seam detection sensor; 15. Magnetic suspension tank. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Example 1:

[0033] like Figures 1-4As shown, the automatic detection device for weld flaw detection of this utility model includes a base plate assembly 11, a front wheel bracket assembly 12, a control module 6, and a magnetic adsorption walking module, a magnetic powder detection module, a magnetic suspension spraying system, and an automatic weld seam locator 14 connected to the control module 6. The front wheel bracket assembly 12 is connected to the base plate assembly 11 through a front wheel bracket shaft 13 and can rotate axially around the front wheel bracket shaft 13. The magnetic adsorption walking module, the magnetic powder detection module, the magnetic suspension spraying system, the control module 6, and the automatic weld seam locator 14 are all mounted on the base plate assembly 11 or the front wheel bracket assembly 12. The magnetic adsorption walking module includes multiple permanent magnet wheels 1 and corresponding permanent magnet wheel rotation shafts 3. The permanent magnet wheels 1 are mounted on the base plate assembly 11 or the front wheel bracket assembly 12 through the permanent magnet wheel rotation shafts 3 and can rotate radially around the permanent magnet wheel rotation shafts 3 to adapt to the magnetic adsorption bonding of complex curved surfaces.

[0034] The magnetic adsorption walking module includes four permanent magnet wheels 1 and corresponding permanent magnet wheel rotation shafts 3; the two front permanent magnet wheels 1 are mounted on the front wheel bracket assembly 12, and the two rear permanent magnet wheels 1 are mounted on the base plate assembly 11.

[0035] The front wheel bracket assembly 12 can rotate, and the two permanent magnet wheels 1 at the front can rotate within a wider range under the action of the front wheel bracket assembly 12 to adapt to complex surfaces (curved surfaces) and achieve a better adsorption and fit effect on the workpiece.

[0036] Automatic weld seam detection sensor: The sensor used is the Ledong LD07, which is already in use in existing technology. The device can detect where the weld seam is, automatically follow the weld seam, and perform magnetic particle inspection.

[0037] The control module 6 is connected to a remote controller via antenna 5. The remote controller controls the device's movement, steering, magnetic suspension spraying, and magnetic yoke lifting actions. Figure 5 As shown, the control module 6 uses a controller from the prior art, specifically the STM32F405RGT6. The control module 6 is connected to the magnetic adsorption walking module, the magnetic powder detection module, the magnetic suspension spraying system, and the automatic weld seam sensor 14 to achieve automatic detection.

[0038] The magnetic particle detection module includes a liftable magnetic yoke 2, which integrates a white light, a purple light, and a camera 8, used to collect magnetic particle distribution images during magnetization of the weld and transmit them back to the remote control.

[0039] The magnetic suspension spraying system includes a magnetic suspension nozzle 4, a liquid pump 10, and a magnetic suspension connection port 9. A magnetic suspension tank 15 is connected to the magnetic suspension connection port 9. The liquid pump 10 is used to pump the magnetic suspension in the magnetic suspension tank 15 through a hose to the magnetic suspension nozzle 4 for spraying. A stirring device is installed inside the magnetic suspension tank 15.

[0040] Power source 7 is a rechargeable power source, equipped with a charging port and a screen to display battery status, power level, and battery life.

[0041] This device can be expanded to include non-destructive testing components, such as thickness gauges, ACFM probes, or X-ray inspection modules.

[0042] When this device is in operation, the preparation stage is as follows: place the device on the surface of the workpiece to be tested and turn on the power supply 7; connect the magnetic suspension tank 15 through the hose to ensure that the stirring device inside the magnetic suspension tank 15 is started.

[0043] Connection and positioning: Start the remote control to establish communication with the device through antenna 5; control the device to move to the area of ​​the weld to be inspected through the remote control, and automatically find the weld sensor 14 to identify the weld trajectory.

[0044] Inspection work:

[0045] The liquid pump 10 is started, and the magnetic suspension liquid is sprayed onto the weld surface through the nozzle 4;

[0046] The liftable magnetic yoke 2 descends to the weld position, activates the magnetization function, and at the same time, the white light / violet light is turned on, and the camera captures the magnetic powder distribution image and transmits it back to the remote control.

[0047] The remote control analyzes the image and issues an alarm if a defect is detected.

[0048] Adaptive adjustment: When the device travels to a curved surface (such as a pipe bend), the permanent magnet wheel 1 rotates radially around the permanent magnet wheel rotation axis 3, while the front wheel bracket assembly 12 rotates axially around the front wheel bracket rotation axis 13, ensuring that the permanent magnet wheel 1 is in close contact with the workpiece surface.

[0049] Extended applications: The adjustable magnetic yoke 2 can be used as a thickness gauge or ACFM probe to achieve a variety of non-destructive testing functions.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic inspection device for weld flaw detection, characterized in that, include: The system includes a substrate assembly (11), a front wheel bracket assembly (12), a control module (6), and a magnetic adsorption walking module, a magnetic powder detection module, a magnetic suspension spraying system, and an automatic weld seam sensor (14) connected to the control module (6). The front wheel bracket assembly (12) is connected to the substrate assembly (11) via a front wheel bracket shaft (13) and can rotate axially around the front wheel bracket shaft (13). The magnetic adsorption walking module, magnetic powder detection module, magnetic suspension spraying system, control module (6), and automatic weld seam sensor (14) are all mounted on the substrate assembly (11) or the front wheel bracket assembly (12). The magnetic adsorption walking module includes a permanent magnet wheel (1) and a corresponding permanent magnet wheel rotating shaft (3). The permanent magnet wheel (1) is mounted on the substrate assembly (11) or the front wheel bracket assembly (12) via the permanent magnet wheel rotating shaft (3) and can rotate radially around the permanent magnet wheel rotating shaft (3) to adapt to the magnetic adsorption bonding of complex curved surfaces.

2. The automatic inspection device for weld flaw detection according to claim 1, characterized in that, The magnetic adsorption walking module includes four permanent magnet wheels (1) and corresponding permanent magnet wheel rotation shafts (3); the two permanent magnet wheels (1) located at the front are mounted on the front wheel bracket assembly (12), and the two permanent magnet wheels (1) located at the rear are mounted on the base plate assembly (11).

3. The automatic inspection device for weld flaw detection according to claim 1, characterized in that, The control module (6) is connected to a remote controller via an antenna (5), and the remote controller controls the device's walking, turning, magnetic suspension spraying, and magnetic yoke lifting actions.

4. The automatic inspection device for weld flaw detection according to claim 3, characterized in that, The magnetic particle detection module includes a liftable magnetic yoke (2), which integrates a white light, a purple light and a camera (8) for collecting magnetic particle distribution images during magnetization of the weld and transmitting them back to the remote controller.

5. The automatic inspection device for weld flaw detection according to claim 1, characterized in that, The magnetic suspension spraying system includes a magnetic suspension nozzle (4), a liquid pump (10), and a magnetic suspension connection port (9); the magnetic suspension connection port (9) is connected to a magnetic suspension tank (15), and the liquid pump (10) is used to pump the magnetic suspension in the magnetic suspension tank (15) to the magnetic suspension nozzle (4) for spraying through a hose.

6. The automatic inspection device for weld flaw detection according to claim 1, characterized in that, It also includes a power supply (7), which is a rechargeable power supply equipped with a charging port and a screen for displaying battery status, power level and battery life.

7. The automatic inspection device for weld flaw detection according to claim 1, characterized in that, The device can be expanded to include non-destructive testing components, such as thickness gauges, ACFM probes, or X-ray inspection modules.

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