Protective device of diagnostic machine

Abstract

The utility model relates to the technical field of flaw detection machines, in particular to a protective device of a flaw detection machine, which comprises a base, a top plate is arranged above the base, the base is fixedly connected with the top plate through a side plate, a sliding chute is arranged at the upper end of the top plate in a penetrating manner, and a connecting seat is arranged in the sliding chute. A sliding groove is formed in the upper end of the connecting base, the connecting base is connected with the sliding groove through a sliding device, a fixing base is arranged below the connecting base, the upper end of the fixing base is connected with the lower end of the connecting base through an adjusting device, an alternating-current electromagnetic yoke is arranged below the fixing base, and the alternating-current electromagnetic yoke is connected with the fixing base through a clamping device. According to the utility model, an operator can be prevented from being hit by a heavy alternating-current electromagnetic yoke, the position of the alternating-current electromagnetic yoke can be conveniently fixed, the connecting seat is moved through the pull ring, so that the position of the alternating-current electromagnetic yoke is changed, and a sample can be conveniently detected in all directions.

Description

Technical Field

[0001] This utility model relates to the field of flaw detector technology, and in particular to a protective device for a flaw detector. Background Technology

[0002] Magnetic particle testing is a non-destructive testing method that utilizes the discontinuities in the magnetic field lines on and near the surface of ferromagnetic materials. When these materials are magnetized, the resulting magnetic discontinuities cause local distortion, creating a leakage magnetic field that attracts magnetic particles applied to the workpiece surface. Under suitable illumination, this forms visible magnetic traces, revealing the location, size, shape, and severity of the discontinuities. When ferromagnetic materials are magnetized, defects on or near the surface disrupt the material's continuity, causing the magnetic field lines to bend and compress. Some magnetic field lines escape from the workpiece surface, creating a leakage magnetic field that attracts the magnetic particles. When applied to the surface of a workpiece with a leakage magnetic field, the magnetic powder is attracted by the leakage magnetic field and accumulates at the defect, forming magnetic traces. These magnetic traces are clearly visible under suitable lighting, thus visually showing the location, size, shape, and severity of the defect. It is suitable for detecting very small cracks and other defects that are difficult to see visually on the surface and near the surface of ferromagnetic materials, such as martensitic stainless steel and precipitation hardening stainless steel. It is widely used in the inspection of pipes, bars, plates, profiles, forgings, castings, and weldments, as well as in the maintenance and periodic inspection of equipment such as aircraft, trains, and tractors.

[0003] In the existing technology, when operators use a flaw detector to perform flaw detection on metal materials, they need to hold the corresponding AC electromagnetic yoke to cooperate with magnetic powder for magnetic particle flaw detection. The AC electromagnetic yoke is relatively heavy, which is inconvenient for operators who need to observe the distribution of magnetic powder. Moreover, the direction of the AC electromagnetic yoke needs to be changed at any time according to the direction of the crack. In order to avoid the operator's hand being pressed down and to avoid the influence of the placement of the AC electromagnetic yoke, we propose a protective device for the flaw detector. Utility Model Content

[0004] The purpose of this utility model is to provide a protective device for a flaw detector, so as to solve the problems existing in the prior art as described in the background.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A protective device for a flaw detector includes a base, a top plate above the base, and a side plate for fixed connection between the base and the top plate. A sliding groove is provided through the upper end of the top plate, and a connecting seat is provided within the sliding groove. The connecting seat and the sliding groove are connected by a sliding device. A fixed seat is provided below the connecting seat, and the upper end of the fixed seat is connected to the lower end of the connecting seat by an adjusting device. An AC electromagnetic yoke is provided below the fixed seat, and the AC electromagnetic yoke is connected to the fixed seat by a clamping device.

[0007] To better achieve the above objectives, the present invention adopts a further technical solution: the sliding device includes a sliding column fixedly connected to the inner wall of the sliding groove, and a sliding hole is provided through the side wall of the connecting seat at the corresponding position, and the sliding column is slidably connected in the sliding hole.

[0008] To better achieve the above objectives, the present invention adopts a further technical solution: the adjusting device includes a rotating seat rotatably connected to the upper end of the fixed seat, a threaded column is fixedly connected to the upper end of the rotating seat, and a threaded groove is provided through the lower end of the connecting seat at the corresponding position, and the threaded column is threadedly connected in the threaded groove.

[0009] To better achieve the above objectives, the present invention adopts a further technical solution: the clamping device includes a clamping member fixedly connected to the lower end of the fixed base, a clamping groove is provided through the lower end of the clamping member, the AC electromagnetic yoke is mated in the clamping groove, and a fixing screw is threadedly connected through the side wall of the clamping member, the tail end of the fixing screw abutting against the side wall of the AC electromagnetic yoke.

[0010] To better achieve the above objectives, the present invention adopts a further technical solution: a pull ring is fixedly connected to the upper end of the connecting seat.

[0011] To better achieve the above objectives, the present invention adopts a further technical solution: the width of the connecting seat is equal to the width of the sliding groove.

[0012] The beneficial effects of this utility model are: by setting up a sliding device, an adjusting device and a clamping device to clamp the AC electromagnetic yoke in cooperation, it can prevent the operator from being hit by the heavy AC electromagnetic yoke, and it can easily fix the position of the AC electromagnetic yoke. When in use, the vertical height and angle of the AC electromagnetic yoke can be changed by rotating the seat and the threaded column, and the position of the AC electromagnetic yoke can be changed by moving the connecting seat through the pull ring, which facilitates the comprehensive testing of the sample. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a protective device for a flaw detector proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the structure below the top plate of the protective device for a flaw detector proposed in this utility model.

[0015] In the diagram: 1. Base, 2. Side plate, 3. Top plate, 4. Pull ring, 5. Connecting seat, 6. Sliding column, 7. Fixing seat, 8. Fixing screw, 9. Rotating seat, 10. Clamping component, 11. AC electromagnetic yoke, 12. Threaded column. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Reference Figure 1-2 A protective device for a flaw detector includes a base 1, a top plate 3 above the base 1, and a side plate 2 for fixed connection between the base 1 and the top plate 3. A sliding groove is provided through the upper end of the top plate 3, and a connecting seat 5 is provided within the groove. The connecting seat 5 is connected to the groove via a sliding device, which includes a sliding column 6 fixedly connected to the inner wall of the groove. A sliding hole is provided through the side wall of the connecting seat 5 at a corresponding position, and the sliding column 6 is slidably connected within the sliding hole. A fixed seat 7 is provided below the connecting seat 5, and the upper end of the fixed seat 7 is connected to the lower end of the connecting seat 5 via an adjusting device. The adjusting device includes a component rotatably connected to the fixed seat. The upper end of the fixed seat 7 has a rotating seat 9, and a threaded column 12 is fixedly connected to the upper end of the rotating seat 9. A threaded groove is provided through the lower end of the connecting seat 5 at the corresponding position. The threaded column 12 is threadedly connected in the threaded groove. An AC electromagnetic yoke 11 is provided below the fixed seat 7. The AC electromagnetic yoke 11 is connected to the fixed seat 7 through a clamping device. The clamping device includes a clamping member 10 fixedly connected to the lower end of the fixed seat 7. A clamping groove is provided through the lower end of the clamping member 10. The AC electromagnetic yoke 11 is mated in the clamping groove. A fixing screw 8 is threadedly connected through the side wall of the clamping member 10. The tail end of the fixing screw 8 abuts against the side wall of the AC electromagnetic yoke 11.

[0018] A pull ring 4 is fixedly connected to the upper end of the connecting seat 5, and the width of the connecting seat 5 is equal to the width of the slide groove.

[0019] This invention places the sample on the upper end of the base 1. Rotating the corresponding fixed seat 7 changes the orientation of the AC electromagnetic yoke 11 clamped on the clamping member 10. Rotating the corresponding rotating seat 9 changes the height of the AC electromagnetic yoke 11 via the threaded column 12. The horizontal position of the AC electromagnetic yoke 11 can be moved via the pull ring 4, facilitating comprehensive inspection and flaw detection of the sample. This device can replace manual handling of the AC electromagnetic yoke 11, protecting operators from injury to their hands due to its heavy weight and preventing additional electric shock.

Claims

1. A protective device for a flaw detector, comprising a base (1), characterized in that, A top plate (3) is provided above the base (1). The base (1) and the top plate (3) are fixedly connected by a side plate (2). A sliding groove is provided through the upper end of the top plate (3). A connecting seat (5) is provided in the sliding groove. The connecting seat (5) is connected to the sliding groove by a sliding device. A fixed seat (7) is provided below the connecting seat (5). The upper end of the fixed seat (7) and the lower end of the connecting seat (5) are connected by an adjusting device. An AC electromagnetic yoke (11) is provided below the fixed seat (7). The AC electromagnetic yoke (11) is connected to the fixed seat (7) by a clamping device.

2. The protective device for a flaw detector according to claim 1, characterized in that, The sliding device includes a sliding column (6) fixedly connected to the inner wall of the sliding groove, and a sliding hole is provided through the side wall of the connecting seat (5) at the corresponding position. The sliding column (6) is slidably connected through the sliding hole.

3. The protective device for a flaw detector according to claim 2, characterized in that, The adjusting device includes a rotating seat (9) rotatably connected to the upper end of the fixed seat (7). A threaded column (12) is fixedly connected to the upper end of the rotating seat (9). A threaded groove is provided through the lower end of the connecting seat (5) at the corresponding position. The threaded column (12) is threadedly connected in the threaded groove.

4. The protective device for a flaw detector according to claim 3, characterized in that, The clamping device includes a clamping member (10) fixedly connected to the lower end of the fixed base (7). A clamping groove is provided through the lower end of the clamping member (10). The AC electromagnetic yoke (11) is mated in the clamping groove. A fixing screw (8) is threadedly connected through the side wall of the clamping member (10). The tail end of the fixing screw (8) abuts against the side wall of the AC electromagnetic yoke (11).

5. The protective device for a flaw detector according to claim 1, characterized in that, A pull ring (4) is fixedly connected to the upper end of the connecting seat (5).

6. The protective device for a flaw detector according to claim 1, characterized in that, The width of the connecting seat (5) is equal to the width of the groove.

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