A test block assembly with magnetic assist tools

By designing a test block assembly with a magnetic auxiliary tool, the problem of inconvenient hole location for test blocks was solved, enabling rapid and accurate hole positioning and improving the efficiency and accuracy of non-destructive testing.

CN224535910UActive Publication Date: 2026-07-21CHINA RAILWAY SHANGHAI BUREAU GRP CO LTD XUZHOU PUBLIC WORKS SECTION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY SHANGHAI BUREAU GRP CO LTD XUZHOU PUBLIC WORKS SECTION
Filing Date
2025-08-21
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In nondestructive testing, the difficulty in locating the test block holes leads to low testing efficiency and a high risk of errors, affecting the accuracy of the test.

Method used

Design a test block assembly with a magnetic auxiliary tool, including a tool body, a magnetic structure, and a scale. The tool body is made of a rigid and lightweight material. The magnetic structure is used to stably attach to the surface of the test block. The scale is used to accurately locate the hole positions. The positioning marks are used to improve the accuracy of operation.

Benefits of technology

Magnetic auxiliary tools can quickly and accurately locate the test block holes, shorten the hole finding time, avoid detection errors, and improve the quality of test data.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of test block assemblies with magnetic suction auxiliary tool, it is related to nondestructive testing test block auxiliary device technical field, to solve the problem of inconvenient test block hole site finding. The component contains test block body and magnetic suction auxiliary tool, auxiliary tool is constituted by tool main body, magnetic suction structure, scale, and can also be set positioning mark. Magnetic suction structure makes tool adsorption in test block, scale corresponding hole site spacing, it is convenient to find hole quickly and accurately;Tool main body adapts test block profile, when using, fixed tool by magnetic suction, aligns hole site by scale, mark, completes flaw detection calibration etc. Operation. The utility model improves the convenience and detection accuracy of test block, simplifies operation, adapts multiple scenes, supports standardized operation, has durable, easily maintained advantage, applicable to rail flaw detection and other nondestructive testing work, and quality is improved for detection process.
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Description

Technical Field

[0001] This utility model relates to a test block assembly with a magnetic suction auxiliary tool, belonging to the technical field of non-destructive testing test block auxiliary devices. Background Technology

[0002] In the field of nondestructive testing, such as rail flaw detection, GHT-5 comparison blocks and other test blocks are used to calibrate flaw detection equipment and generate DAC curves. The test blocks have horizontal and vertical holes of different sizes and locations. During use, it is necessary to accurately locate the corresponding holes for operation. However, currently there is a lack of convenient auxiliary tools, and manually locating the holes is inefficient and prone to errors, affecting the accuracy and efficiency of the testing work. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a test block assembly with a magnetic suction auxiliary tool, which solves the problem of inconvenient test block hole location and improves the convenience and accuracy of test block use in non-destructive testing.

[0004] This utility model is achieved through the following technical solution: a test block assembly with a magnetic suction auxiliary tool, comprising a test block body (which can be a non-destructive testing test block such as GHT-5 comparison test block, and the test block body is provided with a number of holes for testing and calibration, including different specifications of hole structures such as horizontal holes and vertical holes) and a magnetic suction auxiliary tool. Magnetic auxiliary tool: includes tool body, magnetic structure and scale; the tool body is made of hard and lightweight material (such as plastic, aluminum alloy, etc., to ensure structural strength and facilitate hand operation); the magnetic structure is set on the side of the tool body that contacts the test block body, so that the auxiliary tool can be stably attached to the surface of the test block body without affecting the test block's testing performance (such as not affecting the propagation of ultrasonic or other detection signals); the scale is set along the length of the tool body, and the scale is precise, used to correspond to parameters such as the spacing of holes on the test block body, making it easy to quickly find the target hole position.

[0005] Furthermore, the shape of the main body of the magnetic suction auxiliary tool is adapted to the surface contour of the test block, ensuring a tight fit after adsorption and improving the accuracy of hole location.

[0006] Furthermore, the scale markings on the scale correspond to the standard spacing of the holes on the test block body. The corresponding spacing values ​​can be marked on the scale by measuring and calibrating the holes in the test block in the early stage.

[0007] Furthermore, the magnetic suction auxiliary tool can also be equipped with positioning marks, which, in conjunction with a ruler, can more accurately align with the center of the test block hole, improving operational accuracy.

[0008] The beneficial effects of this utility model are: efficient and accurate hole location: with the help of the scale and positioning marks of the magnetic auxiliary tool, the horizontal and vertical holes in different areas (rail head in area A, rail head and rail web in area B, rail bottom in area C) of the test block (such as the GHT-5 comparison test block) can be quickly and accurately located, which greatly shortens the time for manual hole location, avoids detection errors caused by incorrect hole location, improves the accuracy of basic operations such as flaw detection equipment calibration and DAC curve production, and ensures the quality of non-destructive testing data from the source. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another angle; Figure 3 This is a three-dimensional schematic diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the test block body of this utility model; Figure 5 This is a schematic diagram of the structure of the magnetic suction auxiliary tool of this utility model.

[0011] In the figure: 1. Test block body; 2. Magnetic suction auxiliary tool; 11. Hole; 21. Tool body; 22. Magnetic suction structure; 23. Ruler. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0014] like Figures 1 to 3 The illustrated test block assembly with a magnetic suction auxiliary tool includes a test block body 1 and a magnetic suction auxiliary tool 2. The test block body 1 has several holes 11 for non-destructive testing calibration. The magnetic suction auxiliary tool 2 includes a tool body 21, a magnetic suction structure 22, and a scale 23. The tool body 21 is made of a rigid and lightweight material. The magnetic suction structure 22 is located on the side of the tool body 21 that contacts the test block body 1, and is used to allow the magnetic suction auxiliary tool 2 to be attracted to the surface of the test block body 1. The scale 23 is set along the length of the tool body 21 and is used to correspond to the spacing parameters of the holes on the test block body 1 to assist in finding the target hole position.

[0015] The shape of the tool body 21 is adapted to the surface contour of the test block body 1.

[0016] The magnetic suction auxiliary tool 2 is equipped with a positioning mark, which, together with the ruler, is aligned with the center of the hole in the test block.

[0017] The test block body is a GHT-5 comparative test block, made of 60kg / m steel rail, containing horizontal and vertical holes in different areas of zone A, zone B, and zone C.

[0018] Test block preparation The GHT-5 comparative test block conforming to the TB / T2658.21-2007 standard is used as the test block body. It is manufactured according to the standard requirements and includes horizontal and vertical holes in different areas such as area A (rail head area), area B (rail head and rail web area), and area C (rail bottom area) for rail flaw detection and calibration work.

[0019] Making magnetic auxiliary tools Tool body: Made of lightweight plastic material and processed into a long strip shape. The size is designed according to the surface size of the test block body so that it can cover the main hole distribution area of ​​the test block, while being easy to handle by hand.

[0020] Magnetic attraction structure: A magnet is embedded on the side of the tool body that contacts the test block to ensure stable attraction force, while controlling the size and position of the magnet to avoid interference with the test block detection signal.

[0021] Scale setting: By measuring parameters such as the spacing and coordinates of each hole on the test block body, scale graduations are printed on the surface of the tool body along the length direction, and the scale values ​​correspond to the actual spacing of the holes.

[0022] Working principle In use, the auxiliary tool is attached to the surface of the test block using a magnetic structure. Based on the hole distribution parameters of the test block, the corresponding hole position can be quickly located using the scale on the auxiliary tool. With the help of positioning marks, the hole position can be accurately aligned to perform non-destructive testing operations such as flaw detection equipment calibration and DAC curve generation.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A test block assembly with a magnetic suction auxiliary tool, characterized in that: The test block includes a test block body (1) and a magnetic suction auxiliary tool (2). The test block body (1) has several holes (11) for non-destructive testing calibration. The magnetic suction auxiliary tool (2) includes a tool body (21), a magnetic structure (22) and a scale (23). The tool body (21) is made of a hard and lightweight material. The magnetic structure (22) is set on the side of the tool body (21) that contacts the test block body (1) to make the magnetic suction auxiliary tool (2) adhere to the surface of the test block body (1). The scale (23) is set along the length of the tool body (21) to correspond to the spacing parameters of the holes on the test block body (1) and to assist in finding the target hole.

2. The test block assembly with a magnetic suction auxiliary tool according to claim 1, characterized in that: The shape of the tool body (21) is adapted to the surface contour of the test block body (1).

3. The test block assembly with a magnetic suction auxiliary tool according to claim 1, characterized in that: The magnetic suction auxiliary tool (2) is equipped with a positioning mark, which is used in conjunction with the ruler to align with the center of the hole in the test block.

4. A test block assembly with a magnetic suction auxiliary tool according to any one of claims 1-3, characterized in that, The test block body (1) is a GHT-5 comparative test block, made of 60kg / m steel rail, containing horizontal and vertical holes in different areas of A, B and C.