Clamping device with camera shooting function for magnetic defect detector

Abstract

The utility model relates to the technical field of magnetic defect detectors, in particular to a clamping device with a camera shooting function for a magnetic defect detector, which comprises a magnetic defect detector, a clamping mechanism mounted on the magnetic defect detector and a shared support, and an electric sprinkling can and an image acquisition system are mounted on the clamping mechanism. The electric sprinkling can is connected with the sprayer through a guide pipe, the image acquisition system is connected with a miniature high-definition camera and an ultraviolet lamp, and the shared support is provided with a sprayer mounting hole used for mounting the sprayer, an ultraviolet lamp mounting hole used for mounting the ultraviolet lamp and a camera mounting hole used for mounting the miniature high-definition camera. Magnetic traces are recorded through the miniature high-definition camera, and the miniature high-definition camera, the ultraviolet lamp and the spray head are combined and mounted through the shared support, so that the magnetic suspension is prevented from splashing and adhering to the mirror surface of the miniature high-definition camera during spraying.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic particle flaw detectors, in particular to a clamping device with a camera function for magnetic particle flaw detectors. Background Art

[0002] Magnetic Particle Testing (MT), also known as magnetic particle flaw detection or magnetic particle inspection, is one of the five most widely used conventional non-destructive testing methods. Magnetic particle testing is a method that uses magnetic conductive metal to be magnetized in a magnetic field and detects defect characteristics through a display medium. Magnetic particle detection is widely used to detect surface and near-surface defects of ferromagnetic materials. When the magnetic material is magnetized by a strong magnetic field, if there are defects perpendicular to the magnetization direction on the surface or near the surface of the material, part of the magnetic lines of force will overflow and form a leakage magnetic field. If magnetic powder or magnetic suspension is applied to the leakage magnetic field, the leakage magnetic field will attract the magnetic powder, causing the magnetic powder or magnetic suspension to aggregate, and then display the defect. At the same time, since the discontinuous magnetic traces are accumulated on the surface of the inspected workpiece, the shape, position and size of the discontinuity can be intuitively displayed, and its properties can be roughly determined.

[0003] The existing portable magnetic particle flaw detector only has the function of detection when working, and cannot store and record the detection results. In addition, magnetic suspension needs to be sprayed on the weld surface during magnetic particle detection, and the magnetic traces are recorded by a camera. However, the magnetic suspension will splash onto the camera lens when spraying, and the magnetic suspension in the air will also be contaminated onto the camera lens surface, thereby affecting the clarity of the camera. Utility Model Content

[0004] The utility model aims to solve the above defects and provides a clamping device with a camera function for a magnetic particle flaw detector.

[0005] In order to overcome the defects existing in the background technology, the technical solution adopted by the utility model to solve its technical problems is: a clamping device with a camera function for a magnetic particle flaw detector, comprising a magnetic particle flaw detector, a clamping mechanism installed on the magnetic particle flaw detector, and a shared bracket, an electric spray pot and an image acquisition system are installed on the clamping mechanism, the electric spray pot is connected to the spray head through a conduit, a miniature high-definition camera and an ultraviolet lamp are connected to the image acquisition system, and a spray head mounting hole for installing the spray head, an ultraviolet lamp mounting hole for installing the ultraviolet lamp, and a camera mounting hole for installing the miniature high-definition camera are provided on the shared bracket.

[0006] A further improvement includes that the clamping mechanism comprises a bonding plate and elastic clamping plates symmetrically arranged on the bonding plate, and bolts are connected between the clamping plates to tighten the clamping plates to clamp the handle of the magnetic particle flaw detector.

[0007] A further improvement includes providing a storage basket on the laminated plate for placing the electric spray bottle.

[0008] A further improvement includes providing a window on the shared bracket, through which a hook provided on the plywood is inserted.

[0009] A further improvement includes that the image acquisition system comprises an image processing module, an AR module, a display, a database and an evaluation mechanism.

[0010] The beneficial effects of the utility model are as follows: in the design, the micro high-definition camera, ultraviolet lamp and nozzle are installed in combination through a shared bracket to prevent the magnetic suspension from splashing and adhering to the mirror surface of the micro high-definition camera during spraying, thereby ensuring the recording effect of the micro high-definition camera; the electric spray pot can be placed in the storage basket, which is convenient for replenishing the fluorescent magnetic suspension in the electric spray pot; the image acquisition system can collect, read, analyze and record the magnetic traces. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is an assembly diagram of the shared bracket in the utility model;

[0014] In the figure, 1-electric spray pot, 2-storage basket, 3-laminating plate, 4-conduit, 5-spray head, 6-bolt, 7-plywood, 8-image acquisition system, 9-micro high-definition camera, 10-hook, 11-magnetic particle flaw detector, 12-spray head mounting hole, 13-window, 14-camera mounting hole, 15-shared bracket, 16-UV lamp mounting hole, 17-UV lamp. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The embodiments in the basic utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] according to Figure 1 and Figure 2As shown, a clamping device with a camera function for a magnetic particle flaw detector includes a magnetic particle flaw detector 11, a clamping mechanism installed on the magnetic particle flaw detector 11, and a shared bracket 15, an electric spray pot 1 and an image acquisition system 8 are installed on the clamping mechanism, the electric spray pot 1 is connected to a spray head 5 through a conduit 4, a micro high-definition camera 9 and an ultraviolet lamp 17 are connected to the image acquisition system 8, and a spray head mounting hole 12 for mounting the spray head 5, an ultraviolet lamp mounting hole 16 for mounting the ultraviolet lamp 17, and a camera mounting hole 14 for mounting the micro high-definition camera 9 are provided on the shared bracket 15.

[0017] The fluorescent magnetic suspension sprayed on the weld is irradiated by the ultraviolet lamp 17 to improve the recognition. The nozzle mounting hole 12 can flexibly spray the fluorescent magnetic suspension on the weld. The magnetic particle detection process can be recorded by the micro high-definition camera 9. The micro high-definition camera 9, the ultraviolet lamp 17 and the nozzle 5 are installed in combination through the shared bracket 15 to prevent the magnetic suspension from splashing and adhering to the mirror surface of the micro high-definition camera 9 during spraying, thereby ensuring the recording effect of the micro high-definition camera 9.

[0018] The clamping mechanism includes a bonding plate 3 and elastic clamps 7 symmetrically arranged on the bonding plate 3. The handle of the magnetic particle flaw detector 11 is inserted between the clamps 7. Bolts 6 are connected between the clamps 7 to tighten the clamps 7 to clamp the handle of the magnetic particle flaw detector 11. Through this structure, the bonding plate 3 is installed on the magnetic particle flaw detector 11.

[0019] A storage basket 2 for placing the electric spray pot 1 is arranged on the laminating plate 3 . The storage basket 2 is used to facilitate placing the electric spray pot 1 , so as to facilitate replenishing the fluorescent magnetic suspension in the electric spray pot 1 .

[0020] A window 13 is provided on the shared bracket 15 , and a hook 10 provided on the bonding plate 3 is inserted into the window 13 , so that the shared bracket 15 is fixed on the hook 10 .

[0021] The image acquisition system 8 includes an image processing module, an AR module, a display, a database and an evaluation mechanism. The micro high-definition camera is facing the field of view of the magnetic particle flaw detection equipment and is used to acquire a real image of the magnetic trace accumulation morphology; the image processing module is used to extract the magnetic trace features of the real image acquired by the micro high-definition camera to obtain a virtual image; the database stores a plurality of identification images with magnetic trace accumulation morphology, and marks the magnetic trace evaluation of the identification image; the AR module mixes the virtual image and the identification image one by one to form a mixed image; the evaluation module compares the overlap between the virtual image and the identification image in the mixed image, and identifies the magnetic traces in the real image according to the comparison result and outputs the evaluation result. The image acquisition system 8 collects, reads, analyzes and records the shape of the magnetic traces to obtain the information of the magnetic traces.

[0022] The accumulation morphology of magnetic traces within the field of view is analyzed by means of augmented reality (AR) technology. The image processing module is used to extract magnetic trace features from the real image captured by the micro high-definition camera to obtain a virtual image. The virtual mixed image generated by mixing the real high-definition image of magnetic traces captured by the micro high-definition camera with the identification image with evaluation marks is used to compare the defective magnetic traces through the mixed image, and the magnetic trace evaluation results are automatically output. The AR module outputs the mixed image to a screen display, which is convenient for users to observe the mixed image from the screen and perform manual identification and confirmation, so as to combine and interact with the recognition results of this system and the defective magnetic traces recognized by the human eye.

[0023] Working principle: Place the magnetic particle flaw detector 11 at both ends of the weld, start the magnetic particle flaw detector 11 and then spray the fluorescent magnetic suspension. While spraying the fluorescent magnetic suspension, the ultraviolet light generated by the ultraviolet lamp 17 irradiates the weld to form clearly visible magnetic marks. At the same time, the whole process is recorded and collected by the micro high-definition camera 9.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping device with a camera function for a magnetic particle flaw detector, characterized in that: The invention comprises a magnetic particle flaw detector (11), a clamping mechanism installed on the magnetic particle flaw detector (11), and a shared bracket (15); an electric spray pot (1) and an image acquisition system (8) are installed on the clamping mechanism; the electric spray pot (1) is connected to a spray head (5) via a conduit (4); a micro high-definition camera (9) and an ultraviolet lamp (17) are connected to the image acquisition system (8); and a spray head mounting hole (12) for mounting the spray head (5), an ultraviolet lamp mounting hole (16) for mounting the ultraviolet lamp (17), and a camera mounting hole (14) for mounting the micro high-definition camera (9) are provided on the shared bracket (15).

2. A clamping device with a camera function for a magnetic particle flaw detector as claimed in claim 1, characterized in that: The clamping mechanism comprises a bonding plate (3) and elastic clamping plates (7) symmetrically arranged on the bonding plate (3), wherein bolts (6) are connected between the clamping plates (7) so that the clamping plates (7) are tightened to clamp the handle of the magnetic particle flaw detector (11).

3. A clamping device with a camera function for a magnetic particle flaw detector as claimed in claim 2, characterized in that: The laminating plate (3) is provided with a storage basket (2) for placing the electric spray pot (1).

4. A clamping device with a camera function for a magnetic particle flaw detector as claimed in claim 1, characterized in that: The shared bracket (15) is provided with a window (13), and a hook (10) provided on the laminated board (3) is inserted into the window (13).

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