Acoustic emission probe fixing device

Abstract

The utility model relates to the technical field of acoustic emission detection auxiliary equipment, in particular to an acoustic emission probe fixing device. Comprising a fixing sleeve cap, a fastening bolt and a pasting structure, the fixing sleeve cap is of a hollow columnar structure capable of being arranged on the outer side of the acoustic emission probe in a sleeving mode, and an avoiding groove corresponding to a binding post of the acoustic emission probe is formed in the fixing sleeve cap; the fastening bolt is arranged on the fixing sleeve cap in a penetrating manner and is used for abutting the acoustic emission probe against the surface of the to-be-detected workpiece; the pasting structure is arranged on the fixing sleeve cap and used for pasting and fixing the fixing sleeve cap and the acoustic emission probe to the surface of the to-be-detected workpiece. The acoustic emission probe fixing device is simple in structure and convenient to operate and use, the acoustic emission probes can be stably fixed to the surface of a workpiece, the acoustic emission probes can be tightly and evenly attached to the surface of special equipment, especially the surface of stainless steel special equipment, and therefore it is guaranteed that the sensitivity of all the acoustic emission probes is kept consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustic emission detection auxiliary equipment, in particular to an acoustic emission probe fixing device. Background Art

[0002] The acoustic emission detection of special equipment is mainly used to detect the active defects inside the special equipment, and a comprehensive evaluation of the active defects of the special equipment can be carried out with one-time loading. Multiple or even dozens of probes need to be arranged on the special equipment at one time during acoustic emission detection. In order to ensure that the sensitivity deviation of each probe does not exceed the range specified by the standard, it is necessary to ensure that the fixing form of the probe and the special equipment is consistent. At present, for special equipment made of carbon steel, magnetic clamps are mostly used to fix the probes, and for special equipment made of stainless steel, straps and tapes are mostly used for fixing. It is difficult for the straps and tapes to closely and evenly fit the acoustic emission probes on the surface of stainless steel special equipment, resulting in a large sensitivity deviation of each probe, and the sensitivity deviation between the probes and the average sensitivity cannot reach the deviation range specified by the standard, thus causing the detection work to be unable to proceed. Or, due to loose fixing, the probes loosen during the detection process, and the sensitivity deviation before and after the detection is large, resulting in untrustworthy detection data.

[0003] To solve this technical problem, a Chinese patent application with the patent number "CN106770678A" named "Vacuum Type Acoustic Emission Probe Fixer" proposed a fixer for fixing acoustic emission probes. The fixer includes a suction cup, a fixing cylinder, and a reinforcing ring. The suction cup is connected to the fixing cylinder, and the fixing cylinder is connected to the reinforcing ring. The suction cup, the fixing cylinder, and the reinforcing ring are all vacuum type acoustic emission probe fixers integrally formed by using silicone or rubber or other elastic polymer materials. Its characteristics are: the fixing cylinder is in close fit with the acoustic emission probe. Before acoustic emission detection, first polish the surface of the workpiece where the probe needs to be arranged until it is smooth and shows a metallic luster, then insert the acoustic emission probe into the fixing cylinder, apply a coupling agent on the emission probe, and finally press the acoustic emission probe together with the fixer onto the corresponding position of the workpiece. After the acoustic emission detection is completed, just gently lift a corner of the suction cup to make its vacuum leak, and the acoustic emission probe can be easily removed. The structure of this fixer is simple and can fix the acoustic emission probe to the surface of non-magnetic workpieces for use. However, this structure also has some problems, that is, the fixing effect of the flexible fixer structure on the acoustic emission probe is poor and cannot be adjusted, resulting in the probe sensitivity not meeting the standard requirements or the probe falling off the surface of the workpiece, thus leading to detection failure. At the same time, using the suction cup structure to fix the fixer and the acoustic emission probe requires the surface of the workpiece to be flat and smooth, and the application range is relatively narrow. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies of the above background art and provide an acoustic emission probe fixing device.

[0005] The technical solution of the present utility model is: An acoustic emission probe fixing device, comprising

[0006] A fixing sleeve cap, which is a hollow columnar structure that can be sleeved outside the acoustic emission probe. An avoidance groove corresponding to the terminal post of the acoustic emission probe is provided on the fixing sleeve cap;

[0007] A fastening bolt, which is inserted through the fixing sleeve cap and is used to press the acoustic emission probe tightly against the surface of the workpiece to be measured;

[0008] A pasting structure, which is arranged on the fixing sleeve cap and is used to paste and fix the fixing sleeve cap and the acoustic emission probe to the surface of the workpiece to be measured.

[0009] According to an acoustic emission probe fixing device provided by the present application, it further comprises a bottom plate; the bottom plate is a flat plate-shaped structure fixed at the open end of the fixing sleeve cap, and a through hole for the acoustic emission probe to enter the fixing sleeve cap is provided on the bottom plate.

[0010] According to an acoustic emission probe fixing device provided by the present application, the avoidance groove comprises a first rectangular groove on the circumferential outer side of the fixing sleeve cap; the first rectangular groove is a groove hole that is communicated with the open end of the fixing sleeve cap at one end and extends axially at the other end, and is convenient for the terminal post to move axially.

[0011] According to an acoustic emission probe fixing device provided by the present application, the avoidance groove further comprises a second rectangular groove; the second rectangular groove is a groove hole provided on the bottom plate, and one end of the second rectangular groove is communicated with the through hole on the bottom plate and the first rectangular groove.

[0012] According to an acoustic emission probe fixing device provided by the present application, a top plate is provided at the other end of the fixing sleeve cap far away from the open end; one end of the fastening bolt axially passes through the top plate and is in screw connection with a screw connection hole on the top plate.

[0013] According to an acoustic emission probe fixing device provided by the present application, the pasting structure comprises a tape; the tape is pasted on the side of the bottom plate facing the fixing sleeve cap, and both ends of the tape extend out of both sides of the bottom plate.

[0014] The advantages of the present application are: 1. The present application fixes and limits the acoustic emission probe through the fixing sleeve cap. The fastening bolt can stably press the acoustic emission probe tightly against the surface of the workpiece, and the fixing and stabilizing effect is extremely good. Moreover, it can be applied to acoustic emission probes of different specifications, with firm fixation. At the same time, the present application uses a pasting structure to fix and limit the fixing sleeve cap. The pasting structure is not limited to workpieces with a flat surface and can be applied to workpieces with various uneven surfaces, greatly expanding the application range and having great popularization value;

[0015] 2. The present application provides a bottom plate at the end of the fixed cap. The bottom plate has a flat structure, which can increase the contact area between the entire device and the workpiece surface, improve the stability of its fixation, and is not prone to shaking problems.

[0016] 3. The present application provides a first rectangular groove on the fixed cap, which facilitates the arrangement of the terminal post. The acoustic emission probe will not interfere or collide during the process of entering the fixed cap, facilitating the smooth entry of the acoustic emission probe into the fixed cap, and the operation is simple.

[0017] 4. The present application provides a second rectangular groove on the bottom plate. The second rectangular groove facilitates the terminal post to pass through the bottom plate and enter the first rectangular groove. The acoustic emission probe can directly pass through the bottom plate and enter the fixed cap without interference or collision problems.

[0018] 5. The method of clamping the acoustic emission probe in the present application is very simple. By screwing the fastening bolt through the top plate and the screw connection hole on the top plate, the acoustic emission probe can be clamped against the workpiece surface, enabling the acoustic emission probe to closely and evenly adhere to the surface of the workpiece to be measured, making the measurement more accurate.

[0019] 6. The pasting structure of the present application includes a tape. The tape structure is simple. The two ends of the tape extend beyond the bottom plate, which can easily paste and fix the bottom plate to the workpiece surface. The operation is simple and can adapt to the surface of uneven workpieces.

[0020] The acoustic emission probe fixing device of the present application has a simple structure, is convenient to operate and use, can stably fix the acoustic emission probe on the workpiece surface, and can closely and evenly adhere the acoustic emission probe to the surface of special equipment, especially the surface of special equipment made of stainless steel. Thereby ensuring that the sensitivity of each acoustic emission probe remains consistent, and the sensitivity deviation and average sensitivity between the probes are within the deviation range specified by the standard before and after detection, thereby ensuring the smooth progress of the acoustic emission detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : Front view of the fixing device of the present application;

[0022] Figure 2 : Top view of the fixing device of the present application;

[0023] Wherein: 1 - fixed cap; 2 - fastening bolt; 3 - bottom plate; 4 - first rectangular groove; 5 - second rectangular groove; 6 - top plate; 7 - tape. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Embodiments of the present utility model will be described in detail below, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, but should not be construed as a limitation to the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] This application relates to a fixing device for an acoustic emission probe. The fixing device of this application is used to fix the acoustic emission probe to the surface of the workpiece to be measured. The fixing device of this application can closely and evenly attach the acoustic emission probe to the surface of special equipment, especially the surface of special equipment made of stainless steel, so as to ensure that the sensitivity of each acoustic emission probe remains consistent, and the sensitivity deviation and average sensitivity between the probes are within the deviation range specified by the standard before and after detection, thereby ensuring the smooth progress of the acoustic emission detection work.

[0029] Specifically, as Figures 1 to 2 shown, a fixing device for an acoustic emission probe of this application includes a fixing sleeve cap 1, a fastening bolt 2, and a pasting structure. The fixing sleeve cap 1 is a hollow columnar structure that can be sleeved outside the acoustic emission probe. The fixing sleeve cap 1 is the main structure for fixing the acoustic emission probe. An avoidance groove corresponding to the wiring column of the acoustic emission probe is provided on the fixing sleeve cap 1. The acoustic emission probe includes a columnar probe part and a wiring column located on the columnar probe part. The wiring column needs to be exposed outside the fixing sleeve cap 1 for convenient wiring. This application enables the wiring column of the acoustic emission probe (such as Figures 1 to 2A) shown on the outside of the fixed sleeve cap 1; the fastening bolt 2 is passed through the fixed sleeve cap 1 to press the acoustic emission probe against the surface of the workpiece to be measured, and the fastening bolt 2 presses the acoustic emission probe through a screw connection structure; the pasting structure is arranged on the fixed sleeve cap 1 to paste and fix the fixed sleeve cap 1 and the acoustic emission probe to the surface of the workpiece to be measured. The pasting structure is directly pasted and fixed to the surface of the workpiece, and the pasting structure is a flexible part, with not many requirements for whether the surface of the workpiece is clean and smooth, and has better adaptability.

[0030] During actual use: the fastening bolt 2 passes through the fixed sleeve cap 1 and is screwed to the fixed sleeve cap 1; the acoustic emission probe is inserted into the fixed sleeve cap 1, and the terminal of the acoustic emission probe passes through the avoidance groove; the terminal is connected to the acoustic emission detection data line; coupling agent is applied to the bottom of the acoustic emission probe; the fixed sleeve cap 1 and the acoustic emission probe are attached to the wall surface of the special equipment through the pasting structure; the fastening bolt 2 is screwed to apply an appropriate force to the acoustic emission probe to make the acoustic emission probe closely attached to the wall surface of the special equipment; after the acoustic emission detection is completed, disassemble in reverse order according to the above steps.

[0031] In some embodiments of the present application, the structure of the above-mentioned fixed sleeve cap 1 is optimized in this embodiment. Specifically, as Figures 1 to 2 shown, the fixing device of this embodiment further includes a bottom plate 3; the bottom plate 3 is a flat plate-like structure fixed to the open end of the fixed sleeve cap 1, and a through hole for the acoustic emission probe to enter the fixed sleeve cap 1 is provided on the bottom plate 3. The bottom plate 3 is a flat plate structure, which can increase the contact area between the entire device and the surface of the workpiece, improve its fixing stability, and is not prone to shaking problems.

[0032] The bottom plate 3 and the fixed sleeve cap 1 form an integral structure, and the bottom plate 3 is attached to the surface of the workpiece during use. The acoustic emission probe enters the fixed sleeve cap 1 from one side of the bottom plate 3. Therefore, the through hole of the bottom plate 3 is communicated with the side opening of the fixed sleeve cap 1, which is convenient for the acoustic emission probe to enter the fixed sleeve cap 1.

[0033] In addition, in order to prevent the terminal of the acoustic emission probe from interfering with the bottom plate 3 and the fixed sleeve cap 1 during the process of the acoustic emission probe entering the fixed sleeve cap 1, the avoidance groove of this embodiment includes a first rectangular groove 4 on the circumferential outer side surface of the fixed sleeve cap 1. The first rectangular groove 4 is a groove hole with one end communicated with the open end of the fixed sleeve cap 1 and the other end extending axially, which is convenient for the terminal to move axially.

[0034] The avoidance groove further includes a second rectangular groove 5, which is a groove hole provided on the bottom plate 3. One end of the second rectangular groove 5 is communicated with the through hole on the bottom plate 3 and the first rectangular groove 4.

[0035] When the acoustic emission probe enters the fixed socket cap 1, first align the terminal on the acoustic emission probe with the second rectangular groove 5, and then pass through the through hole from one side of the bottom plate 3 along the axial direction of the fixed socket cap 1 into the fixed socket cap 1. During this process, the terminal passes through the bottom plate 3 from the second rectangular groove 5 and enters the first rectangular groove 4 until the required position is reached.

[0036] In some other embodiments of the present application, the structure of the above-mentioned fixed socket cap 1 is further optimized, such as Figures 1 to 2 As shown, a top plate 6 is provided at the other end of the fixed socket cap far from the opening end, and one end of the fastening bolt 2 passes through the top plate 6 along the axial direction and extends into the interior of the fixed socket cap. A spiral connection hole is provided on the top plate 6 to facilitate the installation and arrangement of the fastening bolt 2. The spiral connection hole is located at the center of the top plate 6. The fastening bolt 2 passes through the spiral connection hole and is spirally connected to the spiral connection hole. The length of the fastening bolt 2 extending into the fixed socket cap 1 can be adjusted by screwing, so as to achieve the purpose of adjusting the acoustic emission probe.

[0037] In a further embodiment of the present application, the above-mentioned pasting structure is optimized. Specifically, as Figures 1 to 2 shown, the pasting structure of this embodiment includes a tape 7. The tape 7 is pasted on the side of the bottom plate 3 facing the fixed socket cap 1, and both ends of the tape 7 extend out of both sides of the bottom plate 3.

[0038] There can be multiple tapes 7, not limited to one. As long as the bottom plate 3 can be stably pasted and fixed to the surface of the workpiece. And it is not limited to the pasting structure of the tape. As long as the bottom plate 3 can be stably pasted and fixed to the surface of the workpiece.

[0039] During actual operation, the following steps are carried out:

[0040] 1. Connect the top plate 6 to the fastening bolt 2 through the spiral connection hole by thread connection (the screwing depth of the tightened stud does not exceed 2 mm);

[0041] 2. Align the terminal with the first rectangular groove 4 and the second rectangular groove 5;

[0042] 3. Put the acoustic emission probe into the fixed socket cap 1;

[0043] 4. Connect the terminal to the acoustic emission detection data cable;

[0044] 5. Apply a coupling agent to the bottom of the acoustic emission probe;

[0045] 6. Fit the device composed of steps 3 - 5 onto the wall surface of the special equipment;

[0046] 7. Tightly bond the periphery of the bottom plate 3 to the wall surface of the special equipment through the tape;

[0047] 8. Tighten the fastening bolt 2 to apply an appropriate force to the acoustic emission probe so that the acoustic emission probe fits closely against the wall surface of the special equipment;

[0048] 9. After the acoustic emission detection is completed, reverse the above steps to complete the disassembly.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An acoustic emission probe fixing device, characterized in that: Comprising, A fixed cap (1), the fixed cap (1) being a hollow columnar structure that can be sleeved outside the acoustic emission probe, and an avoidance groove corresponding to the terminal of the acoustic emission probe is provided on the fixed cap (1); A fastening bolt (2), the fastening bolt (2) being inserted through the fixed cap (1) for pressing the acoustic emission probe against the surface of the workpiece to be measured; A pasting structure, the pasting structure being provided on the fixed cap (1) for pasting and fixing the fixed cap (1) and the acoustic emission probe to the surface of the workpiece to be measured.

2. The acoustic emission probe fixing device according to claim 1, characterized in that: It further includes a bottom plate (3); the bottom plate (3) is a flat plate-like structure fixed at the open end of the fixed cap (1), and a through hole for the acoustic emission probe to enter the fixed cap (1) is provided on the bottom plate (3).

3. The acoustic emission probe fixing device according to claim 2, wherein: The avoidance groove includes a first rectangular groove (4) on the circumferential outer side of the fixed cap (1); the first rectangular groove (4) is a groove hole that is communicated with the open end of the fixed cap (1) at one end and extends axially at the other end to facilitate the axial movement of the terminal.

4. The acoustic emission probe fixing device according to claim 3, wherein: The avoidance groove further includes a second rectangular groove (5); the second rectangular groove (5) is a groove hole provided on the bottom plate (3), and one end of the second rectangular groove (5) is communicated with the through hole on the bottom plate (3) and the first rectangular groove (4).

5. The acoustic emission probe fixing device according to claim 1, characterized in that: A top plate (6) is provided at the other end of the fixed cap away from the open end; one end of the fastening bolt (2) axially passes through the top plate (6) and is screwed with the screw connection hole on the top plate (6).

6. The acoustic emission probe fixing device according to claim 2, characterized in that: The pasting structure includes a tape (7); the tape (7) is pasted on the side of the bottom plate (3) facing the fixed cap (1), and both ends of the tape (7) extend out of both sides of the bottom plate (3).

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