Magnetic powder inspection test piece fixing device

Abstract

The utility model relates to the technical field of metal flaw detection auxiliary devices, in particular to a magnetic powder flaw detection test piece fixing device which comprises a first connecting strip, a second connecting strip, a sliding rod, a movable strip, a sliding groove, a sliding block, an adjusting seat, an adjusting rod, a pressing plate, a clamping groove, a test piece body, a threaded seat, a threaded rod and a through groove. The lower surfaces of the four corners of the first connecting strip are fixedly connected with sliding rods correspondingly, the upper surfaces of the four corners of the second connecting strip are connected with the lower ends of the sliding rods correspondingly in a matched mode, the four corners of the movable strip are slidably connected with the sliding rods correspondingly, and the sliding grooves are symmetrically formed in the surfaces of the two sides of the middle of the movable strip correspondingly. The sliding blocks are slidably connected into the sliding grooves respectively, and the adjusting seat is rotationally connected to the upper surface of the middle position of the sliding block, the device has the advantages that operation is convenient, normal positioning and use can be achieved at the position of a workpiece with the surface not clean enough, the test piece fixing and connecting speed is effectively increased, and it is guaranteed that the test pieces are attached and stably connected.

Description

Technical Field

[0001] This application relates to the technical field of metal flaw detection auxiliary devices, and in particular to a magnetic particle flaw detection test piece fixing device. Background Art

[0002] Magnetic particle flaw detection is a detection method that uses information such as magnetic field strength and direction to obtain the internal state of metal components. In the existing magnetic particle flaw detection process, test pieces are required for testing, and then the remaining steps are adjusted according to the test results. During the fixing process of the test pieces, due to the curvature of the workpiece surface, etc., it is often necessary to manually bond the standard test pieces in the form of tape, stickers, etc. However, in some working conditions, there are a lot of floating soil, metal debris, oil stains, etc. on the surface of the equipment workpiece, making it impossible for the tape to achieve the connection and positioning of the test pieces. In this working condition, a lot of time is required to process before the connection operation of the test pieces can be achieved. Therefore, a magnetic particle flaw detection test piece fixing device is proposed to solve these problems. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of this application is to provide a magnetic particle flaw detection test piece fixing device that is convenient to operate, can be normally used at workpieces with insufficiently clean surfaces, effectively improves the fixing speed of the test pieces, and ensures the firm fitting and connection of the test pieces.

[0004] The above application purpose of this application is achieved through the following technical solutions:

[0005] A magnetic particle flaw detection test piece fixing device, comprising: a first connecting strip, a second connecting strip, a sliding rod, a movable strip, a sliding groove, a sliding block, an adjusting seat, an adjusting rod, a pressing plate, a clamping groove, a test piece body, a threaded seat, a threaded rod and a through groove. The lower surfaces at the four corners of the first connecting strip are respectively and fixedly connected with sliding rods. The upper surfaces at the four corners of the second connecting strip are respectively connected in cooperation with the lower ends of the sliding rods. The four corners of the movable strip are respectively slidably connected with the sliding rods. The sliding grooves are symmetrically opened on the surfaces on both sides of the middle position of the movable strip. The sliding blocks are respectively slidably connected in the sliding grooves. The adjusting seat is rotatably connected to the upper surface at the middle position of the sliding block. The adjusting rod has an inverted T-shaped appearance, and a threaded groove is opened at the upper end of the adjusting rod. The upper ends of the adjusting rods are respectively threadedly connected with the adjusting seats. The two ends of the pressing plate are respectively movably connected with the lower ends of the adjusting rods. A clamping groove is opened on the lower surface of the pressing plate. The test piece body is connected in cooperation with the pressing plate. The threaded seat is fixedly connected to the middle position of the first connecting strip. The threaded rod is threadedly connected in the threaded seat. The lower end of the threaded rod is rotatably connected to the upper surface at the middle position of the movable strip. The through grooves are symmetrically opened on the surfaces at the middle positions on both sides of the first connecting strip. The upper ends of the adjusting rods respectively pass through the through grooves. The upper surface of the second connecting strip is connected in cooperation with the workpiece body. The pressing plate is connected in cooperation with the surface of the workpiece body. The surface of the test piece body is in contact with the corresponding surface of the workpiece body surface.

[0006] Optionally, it further includes a connecting seat. The connecting seats are fixedly connected at equal intervals on the surface of the pressing plate away from the workpiece body, and connecting holes are respectively opened through the connecting seats.

[0007] Optionally, it further includes a connecting arm. The connecting arm has a U-shaped appearance. The middle parts of the connecting arms are respectively connected in cooperation with the connecting holes of the connecting seats. The end parts of the connecting arms are respectively connected in cooperation with the surfaces at the edge positions of the test piece body.

[0008] Optionally, it further includes gaskets. The gaskets are respectively fixedly connected to the end parts of the connecting arms.

[0009] Optionally, it further includes scale lines. The scale lines are arranged at equal intervals on the surface of the first connecting strip.

[0010] Optionally, it further includes a rotating rod. The rotating rod is vertically and fixedly connected to the surface of the threaded rod near the upper end.

[0011] Optionally, it further includes positioning grooves. The positioning grooves are opened at equal intervals on the surface of the second connecting strip.

[0012] Optionally, it further includes handles. The handles are respectively fixedly connected to both ends of the first connecting strip.

[0013] The magnetic particle inspection test piece fixing device can connect and fix the test piece body through a combined structure, so that it can be attached to the surface of workpieces of different shapes, and ensure stability during the detection process without falling off.

[0014] The magnetic particle inspection test piece fixing device has a pressure plate shape that can be bent to adapt to workpieces of different diameters, and can be used normally in places where there are drawing inspections, oil stains, debris, etc. on the surface of some workpieces, and has good practicality.

[0015] The magnetic particle flaw detection test piece fixing device has a relatively convenient operation process, good flexibility in use, relatively simple manufacturing process, low manufacturing cost, good application prospect, and is more easily accepted by people. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the present application;

[0017] Figure 2 It is a side structural schematic diagram provided in an embodiment of the present application.

[0018] Figure numerals: 1. first connecting strip; 2. second connecting strip; 3. sliding rod; 4. movable strip; 5. sliding groove; 6. sliding block; 7. adjusting seat; 8. adjusting rod; 9. pressing plate; 10. snap-in groove; 11. test piece body; 12. threaded seat; 13. threaded rod; 14. through groove; 15. connecting seat; 16. connecting arm; 17. gasket; 18. scale line; 19. rotating rod; 20. positioning groove; 21. handle; 22. workpiece body. DETAILED DESCRIPTION

[0019] The present application is further described in detail below in conjunction with the accompanying drawings.

[0020] In order to more clearly understand the technical solutions presented in the embodiments of the present application, the existing work of fixing magnetic particle inspection test pieces is first introduced.

[0021] Among the existing forms of fixing magnetic particle inspection test pieces, tape bonding is the most common, but this type of fixing is not suitable for workpieces with a lot of surface dust, oil, debris, etc. There are also some positioning structures that use mechanical forms to connect test pieces, but the connection of the test pieces is mostly done by tightening the ends, which cannot keep the test pieces flat and stable. Therefore, it is necessary to improve the existing connection forms to solve these problems.

[0022] See also Figure 1 and Figure 2, a magnetic particle flaw detection test piece fixing device disclosed in the embodiments of the present application, includes: a first connecting strip 1, a second connecting strip 2, a sliding rod 3, a movable strip 4, a chute 5, a sliding block 6, an adjusting seat 7, an adjusting rod 8, a pressing plate 9, a clamping groove 10, a test piece body 11, a threaded seat 12, a threaded rod 13 and a through groove 14. The lower surfaces at the four corners of the first connecting strip 1 are respectively fixedly connected with the sliding rods 3. The upper surfaces at the four corners of the second connecting strip 2 are respectively connected with the lower ends of the sliding rods 3 in a matching manner. The four corners of the movable strip 4 are respectively slidably connected with the sliding rods 3. The chutes 5 are symmetrically opened on the surfaces on both sides of the middle position of the movable strip 4. The sliding blocks 6 are respectively slidably connected in the chutes 5. The adjusting seat 7 is rotatably connected to the upper surface of the middle position of the sliding block 6. The adjusting rod 8 has an inverted T-shaped appearance. A threaded groove is opened at the upper end of the adjusting rod 8. The upper ends of the adjusting rod 8 are respectively threadedly connected with the adjusting seat 7. The two ends of the pressing plate 9 are respectively movably connected with the lower ends of the adjusting rods 8. A clamping groove 10 is opened on the lower surface of the pressing plate 9. The test piece body 11 is connected in the pressing plate 9 in a matching manner. The threaded seat 12 is fixedly connected to the middle position of the first connecting strip 1. The threaded rod 13 is threadedly connected in the threaded seat 12. The lower end of the threaded rod 13 is rotatably connected to the upper surface of the middle position of the movable strip 4. The through grooves 14 are symmetrically opened on the surfaces at the middle positions on both sides of the first connecting strip 1. The upper ends of the adjusting rods 8 respectively pass through the through grooves 14. The upper surface of the second connecting strip 2 is connected with the workpiece body 22 in a matching manner. The pressing plate 9 is connected with the surface of the workpiece body 22 in a matching manner. The surface of the test piece body 11 is in contact with the corresponding surface of the surface of the workpiece body 22.

[0023] Specifically, the first connecting strip 1 and the second connecting strip 2 are connected to each other through the sliding rods 3 to form a detachable fixing frame. During use, the second connecting strip 2 is placed on the surface of the workpiece body 22, and then the threaded rod 13 is rotated. Under the rotation of the threaded rod 13, the movable strip 4 can rise or fall along the sliding rod 3, thereby driving the sliding block 6 thereon to rise and fall. The sliding block 6 can adjust its position in the chute 5 according to the size of the workpiece body 22, so as to reach a suitable width. When there are states such as inclined surfaces and arcs on the workpiece surface, the height of the adjusting rod 8 can be adjusted by rotating the adjusting seat 7, so that the pressing plate 9 fits the workpiece surface. The pressing plate 9 is made of a soft material, so that it can fit the most when the workpiece surface is uneven. The clamping groove 10 provided can facilitate the connection of the test piece body 11, so that its surface can be kept flat, which is convenient for the test operation during use. It can meet the positioning of the test piece body 11 even under complex states such as dust, oil stains, and metal chips on the workpiece surface, and has the effects of convenient operation and strong practicability. Compared with the existing tape fixing type and mechanical fixing type, it more meets the actual use scenario requirements.

[0024] Please refer to Figure 2, as another specific implementation provided by the application, it further includes a connecting seat 15. The connecting seats 15 are fixedly connected at equal intervals on the surface of the pressing plate 9 on the side away from the workpiece body 22. Connecting holes are respectively formed through the connecting seats 15.

[0025] Specifically, the arrangement of the connecting seats 15 can enhance the strength of the pressing plate 9, and the connecting holes provided thereon can be used to connect and install other components, improving the convenience.

[0026] Please refer to Figure 1 , as another specific implementation provided by the application, it further includes a connecting arm 16. The connecting arm 16 has a U-shaped appearance. The middle parts of the connecting arm 16 are respectively fitted and connected in the connecting holes of the connecting seats 15, and the end parts of the connecting arm 16 are respectively fitted and connected with the surfaces at the edge positions of the test piece body 11.

[0027] Specifically, the connecting arm 16 can be fitted and connected in the connecting seat 15, and then the surface of the test piece body 11 can be pressed through the end parts, so as to meet the connection and fixation in the case where the area of the test piece body 11 is relatively large.

[0028] Please refer to Figure 1 , as another specific implementation provided by the application, it further includes a gasket 17. The gaskets 17 are respectively fixedly connected to the end parts of the connecting arm 16.

[0029] Specifically, the arrangement of the gasket 17 can increase the area of the end part of the connecting arm 16, avoid damaging the surface of the test piece body 11, and ensure the stability during use.

[0030] Please refer to Figure 1 , as another specific implementation provided by the application, it further includes scale lines 18. The scale lines 18 are arranged at equal intervals on the surface of the first connecting strip 1.

[0031] Specifically, the arrangement of the scale lines 18 facilitates moving the distance between the adjusting rods 8 during the adjustment process, facilitating the quick connection of the workpiece body 22 and improving the convenience.

[0032] Please refer to Figure 2 , as another specific implementation provided by the application, it further includes a rotating rod 19. The rotating rod 19 is vertically and fixedly connected to the surface of the threaded rod 13 near the upper end.

[0033] Specifically, the arrangement of the rotating rod 19 can make the rotation of the threaded rod 13 more labor-saving and improve the convenience of operation.

[0034] Please refer to Figure 2 , as another specific implementation provided by the application, it further includes positioning grooves 20. The positioning grooves 20 are arranged at equal intervals on the surface of the second connecting strip 2.

[0035] Specifically, the setting of the positioning groove 20 enables the adjusting rod 8 to maintain vertical orientation during movement, ensuring stable direction during movement.

[0036] Please refer to Figure 1 , as another specific implementation provided by the application, it further includes a handle 21, and the handle 21 is fixedly connected to both ends of the first connecting bar 1 respectively.

[0037] Specifically, the setting of the handle 21 facilitates the adjustment during installation and the movement of the position, and has good practicability.

[0038] The embodiments of this specific implementation are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A fixing device for magnetic particle flaw detection test pieces, characterized in that, Including: A first connecting bar (1), a second connecting bar (2), a sliding rod (3), a movable bar (4), a sliding groove (5), a sliding block (6), an adjusting seat (7), an adjusting rod (8), a pressing plate (9), a clamping groove (10), a test piece body (11), a threaded seat (12), a threaded rod (13) and a through groove (14). The lower surfaces at the four corners of the first connecting bar (1) are respectively and fixedly connected with sliding rods (3). The upper surfaces at the four corners of the second connecting bar (2) are respectively in mating connection with the lower ends of the sliding rods (3). The four corners of the movable bar (4) are respectively in sliding connection with the sliding rods (3). The sliding grooves (5) are symmetrically formed on the surfaces on both sides of the middle position of the movable bar (4). The sliding blocks (6) are respectively in sliding connection in the sliding grooves (5). The adjusting seat (7) is rotatably connected to the upper surface of the middle position of the sliding block (6). The adjusting rod (8) has an inverted T-shaped appearance. A threaded groove is formed at the upper end of the adjusting rod (8). The upper ends of the adjusting rods (8) are respectively in threaded connection with the adjusting seat (7). The two ends of the pressing plate (9) are respectively in movable connection with the lower ends of the adjusting rods (8). A clamping groove (10) is formed on the lower surface of the pressing plate (9). The test piece body (11) is in mating connection within the pressing plate (9). The threaded seat (12) is fixedly connected to the middle position of the first connecting bar (1). The threaded rod (13) is in threaded connection within the threaded seat (12). The lower end of the threaded rod (13) is rotatably connected to the upper surface of the middle position of the movable bar (4). The through grooves (14) are symmetrically formed on the surfaces at the middle positions on both sides of the first connecting bar (1). The upper ends of the adjusting rods (8) respectively pass through the through grooves (14). The upper surface of the second connecting bar (2) is in mating connection with a workpiece body (22). The pressing plate (9) is in mating connection with the surface of the workpiece body (22). The surface of the test piece body (11) is in contact with the corresponding surface of the workpiece body (22).

2. The magnetic particle flaw detection test piece fixing device according to claim 1, characterized in that: It further includes a connecting seat (15). The connecting seats (15) are equidistantly and fixedly connected to the surface of the pressing plate (9) on the side away from the workpiece body (22). Connecting holes are respectively formed through the connecting seats (15).

3. The magnetic particle flaw detection test piece fixing device according to claim 2, characterized in that: It further includes a connecting arm (16). The connecting arm (16) has a U-shaped appearance. The middle parts of the connecting arms (16) are respectively in mating connection within the connecting holes of the connecting seats (15). The end parts of the connecting arms (16) are respectively in mating connection with the surfaces at the edge positions of the test piece body (11).

4. The magnetic particle flaw detection test piece fixing device according to claim 3, characterized in that: It further includes gaskets (17). The gaskets (17) are respectively fixedly connected to the end parts of the connecting arms (16).

5. The magnetic particle flaw detection test piece fixing device according to claim 1, wherein: It further includes scale lines (18). The scale lines (18) are equidistantly arranged on the surface of the first connecting bar (1).

6. The magnetic particle flaw detection test piece fixing device according to claim 1, wherein: It further includes a rotating rod (19). The rotating rod (19) is vertically and fixedly connected to the surface of the threaded rod (13) near the upper end.

7. A magnetic particle flaw detection test piece fixing device according to claim 1, characterized in that: It further includes positioning grooves (20). The positioning grooves (20) are equidistantly formed on the surface of the second connecting bar (2).

8. A magnetic particle flaw detection test piece fixing device according to claim 1, characterized in that: It further includes handles (21). The handles (21) are respectively fixedly connected to both ends of the first connecting bar (1).

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