Adjustable magnetic powder detection device

Abstract

The utility model relates to an adjustable magnetic powder detection device, which relates to the technical field of flaw detection equipment, and comprises a support frame with a rectangular space defined therein, two groups of clamping and fixing mechanisms arranged at the front and rear ends of the rectangular space in the support frame, and a flaw detection mechanism arranged between the two groups of clamping and fixing mechanisms, the supporting frame comprises a top plate, a base plate and two side wall plates on the two sides, the clamping and fixing mechanism comprises two single-side clamping assemblies connected to the two side wall plates correspondingly, and the two single-side clamping assemblies can move relatively to clamp the seamless steel pipe. The fixing structure of the magnetic powder detection device is convenient to adjust, the clamping position and the detection position of the seamless steel pipe can be rapidly replaced, and the detection efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of flaw detection equipment, and in particular to an adjustable magnetic particle inspection device. Background Technology

[0002] Magnetic particle testing is a method that utilizes magnetic leakage and a suitable inspection medium to detect surface and near-surface discontinuities. When magnetic field lines pass through ferromagnetic materials and their products, a leakage magnetic field is generated at the points of magnetic discontinuity, forming magnetic poles. When dry magnetic powder is sprinkled or a magnetic suspension is poured on, the magnetic poles attract the powder, producing a clearly visible magnetic trace. This trace can be used to reveal defects in the ferromagnetic materials and their products, and under appropriate lighting, it can show the location, size, shape, and severity of the discontinuities.

[0003] When using a magnetic particle testing device to inspect seamless steel pipes, it is necessary to continuously adjust the position of the steel pipe being inspected. Therefore, it is necessary to adjust the fixing structure of the seamless steel pipe on the magnetic particle testing device. However, the existing fixing structure of the steel pipe on the magnetic particle testing device is inconvenient to adjust, which greatly reduces the inspection efficiency of seamless steel pipes. Utility Model Content

[0004] The purpose of this application is to provide an adjustable magnetic particle testing device with a convenient fixed structure that allows for quick changes in the clamping and testing positions of seamless steel pipes, thereby improving testing efficiency.

[0005] The adjustable magnetic particle testing device provided in this application adopts the following technical solution:

[0006] An adjustable magnetic particle inspection device includes a support frame that forms a rectangular space inside, two sets of clamping and fixing mechanisms disposed at the front and rear ends of the rectangular space inside the support frame, and a flaw detection mechanism disposed between the two sets of clamping and fixing mechanisms. The support frame includes a top plate, a base plate, and two side wall plates on both sides. The clamping and fixing mechanism includes two single-sided clamping components respectively connected to the two side wall plates. The two single-sided clamping components can move relative to each other to clamp seamless steel pipes.

[0007] As a preferred technical solution of this application, two single-sided clamping assemblies are arranged opposite to each other. Each single-sided clamping assembly includes two pull rods that are vertically opposite to each other and penetrate the side wall panel, an arc-shaped clamping plate connected between the two pull rods at one end located in the rectangular space, and a connecting rod connected between the two pull rods at the other end located outside the rectangular space. A compression spring is sleeved on the part of each pull rod located in the rectangular space. One end of the compression spring abuts against the side wall panel, and the opening direction of the arc-shaped clamping plate is away from the pull rod.

[0008] As a preferred technical solution of this application, the portion of the pull rod located within the rectangular space is provided with a positioning plate, and the end of the compression spring abuts against the positioning plate.

[0009] As a preferred technical solution of this application, the two single-sided clamping components are staggered. The single-sided clamping components include two threaded rods that are vertically opposite each other and penetrate the side wall plate, an arc-shaped clamping plate connecting the two threaded rods at one end located in the rectangular space, and a connecting rod connecting the two threaded rods at one end located outside the rectangular space. Two locking nuts are sleeved on the threaded rods, and the two locking nuts abut against the inner and outer sides of the side wall plate respectively. The opening direction of the arc-shaped clamping plate faces the threaded rods.

[0010] As a preferred technical solution of this application, the concave surface of the arc-shaped clamp is used to contact and clamp the seamless steel pipe, and the concave surface is evenly distributed with rolling balls.

[0011] As a preferred technical solution of this application, the flaw detection mechanism includes a magnetic powder supply device and a flaw detector, with the magnetic powder supply device disposed in front of the flaw detector.

[0012] As a preferred technical solution of this application, the front and rear ends of the base plate protrude outwards, and a bracket is connected to the protruding part. The bracket includes a fixed rod, a movable sleeve movably sleeved on the upper part of the fixed rod, a support spring connected to the lower end of the movable sleeve, and a roller connected to the upper end of the movable sleeve. The lower end of the support spring abuts against the base plate.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. In this application, a seamless steel pipe is passed through a rectangular space and clamped by two clamping and fixing mechanisms. When moving or replacing the seamless steel pipe to be inspected, the clamping state of the seamless steel pipe can be released simply by pulling outward or loosening one side of the clamping component, which facilitates rapid inspection of the seamless steel pipe.

[0015] 2. Brackets are installed at both ends of the base plate to support the seamless steel pipe, preventing it from falling when the seamless steel pipe is moved or the testing position is changed, thus improving safety and testing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the device in Embodiment 1 of this application;

[0017] Figure 2 This is a schematic diagram of the external structure of the device in Embodiment 1 of this application;

[0018] Figure 3 This is a schematic diagram of the clamping and fixing mechanism in Embodiment 1 of this application;

[0019] Figure 4 This is a schematic diagram of the clamping and fixing mechanism in Embodiment 2 of this application;

[0020] In the diagram, 1. Support frame; 11. Top plate; 12. Base plate; 13. Side wall plate; 2. Clamping and fixing mechanism; 21. Pull-out rod; 22. Arc-shaped clamping plate; 23. Connecting rod; 24. Compression spring; 25. Positioning plate; 26. Threaded rod; 27. Locking nut; 28. Ball bearing; 3. Flaw detection mechanism; 31. Magnetic powder supply device; 32. Flaw detector; 4. Bracket; 41. Fixing rod; 42. Movable sleeve; 43. Support spring; 44. Idler roller. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0022] Example 1: This example proposes an adjustable magnetic particle detection device, referring to... Figure 1-3 The device includes a support frame 1, a clamping and fixing mechanism 2, a flaw detection mechanism 3, and a bracket 4. The support frame 1 serves as the foundation of the device and is installed on the working plane. The clamping and fixing mechanism 2 is installed on the support frame 1 and is used to clamp and fix the seamless steel pipe and keep the seamless steel pipe stable. The flaw detection mechanism 3 is used to spray magnetic powder onto the seamless steel pipe and perform flaw detection. The bracket 4 supports the seamless steel pipe, prevents the seamless steel pipe from falling during adjustment and movement, and assists in the movement of the seamless steel pipe.

[0023] The support frame 1 includes a top plate 11, a base plate 12, and two side wall plates 13 on both sides. The four plates form a rectangular space for the insertion and inspection of seamless steel pipes. In this embodiment, the entry side of the seamless steel pipe is the front, and the output side is the rear. The top plate 11 and the side wall plates 13 have the same width. The front and rear ends of the base plate 12 protrude outwards, and a bracket 4 is connected to the upper surface of each protruding part. The bracket 4 includes a fixed rod 41, a movable sleeve 42, a support spring 43, and a roller 44. The fixed rod 41 is vertically fixed above the central axis of the base plate 12. The movable sleeve 42 is open at the lower end and closed at the upper end, and is movably sleeved on the upper part of the fixed rod 41. The support spring 43 is sleeved on the lower part of the fixed rod 41. The upper end of the support spring 43 is fixedly connected to the lower end of the movable sleeve 42, and the lower end abuts against the base plate 12. The elastic force of the support spring 42 allows the movable sleeve 42 to move up and down. The axis of the roller 44 is perpendicular to the axis of the movable sleeve 42 and is rotatably connected to the upper end of the movable sleeve 42. The roller 44 can rise and fall, supporting seamless steel pipes of different diameters.

[0024] Two sets of clamping and fixing mechanisms 2 are provided, which are respectively set at the front and rear ends of the rectangular space inside the support frame 1. Each set of clamping and fixing mechanisms 2 includes two single-sided clamping components. The two single-sided clamping components are respectively connected to the two side wall plates 13, and the two single-sided clamping components can move relative to each other to clamp or release the seamless steel pipe.

[0025] In this embodiment, two single-sided clamping components are arranged opposite each other. Specifically, each single-sided clamping component includes two pull rods 21, an arc-shaped clamping plate 22, a connecting rod 23, and two compression springs 24. Two pull rods 21 are provided, of the same length, and positioned opposite each other vertically. The pull rods 21 penetrate the side wall panel 12 vertically. One end of each pull rod 21 within the rectangular space is connected to the arc-shaped clamping plate 22, and the other end of each pull rod 21 outside the rectangular space is connected to the connecting rod 23. The opening direction of the arc-shaped clamping plate 22 is opposite to that of the pull rods 21, and its length is greater than the distance between the two pull rods 21. The arc-shaped clamping plate 22 clamps the seamless steel pipe through its concave surface. To facilitate the rotation and movement of the seamless steel pipe, in this embodiment, the arc-shaped clamping plate 24... Roller balls 28 are evenly distributed on the concave surface of the tube 2 to reduce the frictional resistance when the seamless steel pipe moves. In this embodiment, the connecting rod 23 is set as a straight rod, which can serve as a connection structure to keep the distance between the two pull rods 21 unchanged, and can also serve as a handle when the pull rod 21 is pulled out. The compression spring 24 is sleeved on the part of the pull rod 21 located in the rectangular space. A positioning plate 25 is set at the position of the arc-shaped clamp 22 on the pull rod 21. One end of the compression spring 24 abuts against the side wall plate 13, and the other end abuts against the positioning plate 25.

[0026] The flaw detection mechanism 3 is set between the two sets of clamping and fixing mechanisms 2 and installed on the lower surface of the top plate 11. The flaw detection mechanism 3 includes a magnetic powder supply device 31 and a flaw detector 32. The magnetic powder supply device 31 is set in front of the flaw detector 32. The magnetic powder supply device 31 can spray magnetic powder evenly onto the seamless steel pipe, while the flaw detector 32 performs flaw detection on the seamless steel pipe.

[0027] The implementation principle of Embodiment 1 of this application is as follows: Pull the two connecting rods 23 outward to increase the space between the two arc-shaped clamps 22, then insert the seamless steel pipe from the front end of the device. The two ends of the seamless steel pipe rest on the bracket 4. Release the connecting rods 23, and under the elastic force of the compression spring 24, the two arc-shaped clamps 22 move closer to each other and gradually clamp the seamless steel pipe. During the inspection, magnetic powder is sprayed onto the seamless steel pipe, and then the seamless steel pipe is pushed backward. The flaw detector begins to perform flaw detection on the position where the magnetic powder is sprayed.

[0028] Example 2: Refer to Figure 4The difference between this embodiment and Embodiment 1 lies in the structure of the clamping and fixing mechanism 2. In this embodiment, the two single-sided clamping components are staggered front to back. Each single-sided clamping component includes two threaded rods 26, an arc-shaped clamping plate 22, a connecting rod 23, and four locking nuts 27. The two threaded rods 23 are of the same length, vertically opposite each other, and pass through the side wall plate 13. One end of the two threaded rods 26 located within the rectangular space is connected to the arc-shaped clamping plate 22, and the other end of the two threaded rods 26 located outside the rectangular space is connected to the connecting rod 23. The opening of the arc-shaped clamping plate 22 faces the threaded rods 26, and the openings of the two arc-shaped clamping plates 22 face each other. Two locking nuts 27 are threaded onto the threaded rods 26, and the two locking nuts 27 abut against the inner and outer sides of the side wall plate 13, respectively. In this embodiment, the distance between the two arc-shaped clamping plates 22 is controlled by adjusting the nuts 27, thereby achieving the clamping and loosening of the seamless steel pipe.

[0029] 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. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable magnetic particle detection device, characterized in that, The device includes a support frame (1) that forms a rectangular space inside, two sets of clamping and fixing mechanisms (2) set at the front and rear ends of the rectangular space inside the support frame (1), and a flaw detection mechanism (3) set between the two sets of clamping and fixing mechanisms (2). The support frame (1) includes a top plate (11), a base plate (12), and two side wall plates (13) on both sides. The clamping and fixing mechanism (2) includes two single-sided clamping components that are respectively connected to the two side wall plates (13). The two single-sided clamping components can move relative to each other to clamp the seamless steel pipe.

2. The adjustable magnetic particle detection device according to claim 1, characterized in that, Two single-sided clamping assemblies are arranged opposite each other. The single-sided clamping assembly includes two pull rods (21) that are vertically opposite each other and penetrate the side wall plate (13), an arc-shaped clamping plate (22) connected between the two pull rods (21) at one end located in the rectangular space, and a connecting rod (23) connected between the two pull rods (21) at one end located outside the rectangular space. A compression spring (24) is sleeved on the part of the two pull rods (21) located in the rectangular space. One end of the compression spring (24) abuts against the side wall plate (13). The opening direction of the arc-shaped clamping plate (22) is away from the pull rod (21).

3. The adjustable magnetic particle detection device according to claim 2, characterized in that, The portion of the pull rod (21) located within the rectangular space is provided with a positioning plate (25), and the end of the compression spring (24) abuts against the positioning plate (25).

4. The adjustable magnetic particle detection device according to claim 1, characterized in that, Two single-sided clamping components are staggered. The single-sided clamping components include two threaded rods (26) that are opposite each other and vertically penetrate the side wall plate (13), an arc-shaped clamping plate (22) connecting the two threaded rods (26) at one end in the rectangular space, and a connecting rod (23) connecting the two threaded rods (26) at one end outside the rectangular space. Two locking nuts (27) are fitted on the threaded rods (26). The two locking nuts (27) abut against the inner and outer sides of the side wall plate (13) respectively. The opening direction of the arc-shaped clamping plate (22) faces the threaded rods (26).

5. An adjustable magnetic particle detection device according to any one of claims 2-4, characterized in that, The concave surface of the arc-shaped clamp (22) is used to contact and clamp the seamless steel pipe, and the concave surface is evenly distributed with balls (28).

6. The adjustable magnetic particle detection device according to claim 1, characterized in that, The flaw detection mechanism (3) includes a magnetic powder supply device (31) and a flaw detector (32), with the magnetic powder supply device (31) located in front of the flaw detector (32).

7. The adjustable magnetic particle detection device according to claim 1, characterized in that, The base plate (12) protrudes outward at both ends, and a bracket (4) is connected to the protruding part. The bracket (4) includes a fixed rod (41), a movable sleeve (42) movably sleeved on the upper part of the fixed rod (41), a support spring (43) connected to the lower end of the movable sleeve (42), and a roller (44) connected to the upper end of the movable sleeve (42). The lower end of the support spring (43) abuts against the base plate (12).

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