L-shaped ultrasonic probe detection clamp

Abstract

The utility model relates to an L-shaped ultrasonic probe detection clamp which comprises an L-shaped cover plate and a sliding table fixing device, and the L-shaped cover plate is connected with the side wall of the sliding table fixing device. One side of the L-shaped cover plate is provided with a first protrusion and a first groove which are used for being connected with a sliding table fixing device. A second groove, a third groove and a fourth groove are formed in the side, connected with the L-shaped cover plate, of the first end of the sliding table fixing device, the second groove and the third groove are communicated, the second groove and the first protrusion are matched to form a first moving space, and the fourth groove and the first groove are symmetrically arranged to form a second moving space. According to the device, the probe and the encoder can be positioned in the same plane by arranging the sliding table fixing device, so that the problems of inaccurate or incomplete acquired data and the like caused by different positions are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of detection devices, and particularly relates to an L-shaped ultrasonic probe detection fixture. Background Art

[0002] Ultrasonic Testing (UT) is a non-destructive testing method that uses the propagation characteristics of ultrasonic waves to detect internal defects in materials, measure thickness, evaluate material properties, etc. Its main principle is to obtain information inside the material through the propagation, reflection, and attenuation of ultrasonic waves in the material. Ultrasonic testing is mainly based on the following physical principles: Ultrasonic wave propagation: Ultrasonic waves are sound waves with a frequency higher than 20 kHz, and ultrasonic waves are emitted into the material to be detected through an ultrasonic probe. Reflection and diffraction: When ultrasonic waves encounter discontinuities (such as cracks, voids, etc.) inside the material, reflection and diffraction occur, generating echo waves. Receiving echo waves: The ultrasonic probe also serves as a receiver to receive the ultrasonic wave signals reflected from inside the material. Signal processing: By processing the received ultrasonic wave signals, it can be determined whether there are defects inside the material, as well as information such as the location and size of the defects.

[0003] An ultrasonic probe detection fixture is a device used to fix and position an ultrasonic probe. Its main purpose is to ensure that during ultrasonic testing, the probe can maintain stable contact and the correct angle, so as to obtain accurate and reliable test results. This kind of fixture is widely used in the field of Non-Destructive Testing (NDT), especially in ultrasonic testing, for detecting internal defects of materials, measuring thickness, etc.

[0004] However, the current ultrasonic probe detection fixture arranges the probe and the encoder in an up-and-down position. This design method causes interference between the T-shaped structure and the jaws of the chuck during rotational detection, making it impossible to complete a full circle of detection. Eventually, the encoder or the probe cannot effectively contact the surface, resulting in problems such as inaccurate or incomplete acquisition. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an L-shaped ultrasonic probe detection fixture. By setting a sliding table fixing device, the probe fixing device and the encoder fixing device are in a parallel state. During rotational detection, the T-shaped structure on the detection device and the jaws of the chuck do not interfere with each other, enabling a full circle of detection, reducing the repeatability of detection, and shortening the detection time.

[0006] To achieve the above object, the utility model discloses the following technical solutions:

[0007] An L-shaped ultrasonic probe detection fixture, which comprises an L-shaped cover plate and a slide table fixing device, and the L-shaped cover plate is connected to the side wall of the slide table fixing device; one side of the L-shaped cover plate is provided with a first protrusion and a first groove for connecting with the slide table fixing device; on the side of the slide table fixing device connected to the L-shaped cover plate, there are a second groove, a third groove and a fourth groove, the second groove and the third groove are in a communicating state, the second groove cooperates with the first protrusion and forms a first moving space, the fourth groove is symmetrically arranged with the first groove and forms a second moving space; a connecting piece is arranged at the second end of the slide table fixing device, and the slide table fixing device is connected to an external connecting device through the connecting piece; a probe fixing device is arranged in the first space, the probe fixing device is connected to the inner side wall of the second groove, and a fifth groove and a sixth groove are opened on the probe fixing device, and the fifth groove and the sixth groove are in a communicating state with the third groove; an encoder fixing device is arranged in the second space, an eighth groove is opened at the first end of the encoder fixing device, an encoder is installed inside the eighth groove, and a circular protrusion is arranged on the side wall in the second space, and a seventh groove matching the circular protrusion is opened at the second end of the encoder fixing device.

[0008] Preferably, the cross-sectional area of the first protrusion is smaller than the cross-sectional area of the first groove.

[0009] Preferably, a bevel surface for facilitating the bolt connection between the connecting piece and the external connecting device is opened on the side wall of the second end of the slide table fixing device.

[0010] Preferably, the volume of the probe fixing device is the same as the space volume of the first space.

[0011] Preferably, a plurality of first threaded holes are opened on the L-shaped cover plate, and a plurality of second threaded holes matching the first threaded holes are opened at the connection between the slide table fixing device and the L-shaped cover plate; a plurality of third threaded holes are opened on the side wall of the probe fixing device, and a plurality of fourth threaded holes matching the third threaded holes are opened on the inner side wall of the second groove; a fifth threaded hole for connecting with the encoder is opened on the side wall of the eighth groove.

[0012] Preferably, a spring is further arranged in the second space, the first end of the spring is connected to the circular protrusion, and the second end of the spring is connected to the seventh groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) By setting the sliding table fixing device, the probe fixing device and the encoder fixing device of the present utility model are in a parallel state. Compared with the traditional up-and-down setting method, the parallel setting of this device enables the T-shaped structure on the detection device not to interfere with the jaws of the chuck during rotational detection, allowing it to complete a full circle of detection, reducing the repeatability of detection, and shortening the detection time.

[0015] (2) The parallel setting of the probe fixing device and the encoder fixing device in the present utility model solves the problems such as the inability to effectively contact the surface and thus unable to collect data during the scanning process of the upper and lower end faces of a disc-shaped component because the probe and the encoder of the traditional device are placed vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a perspective view of the L-shaped cover plate of the present utility model;

[0018] Figure 3 is a perspective view of the sliding table fixing device of the present utility model;

[0019] Figure 4 is a perspective view of the probe fixing device of the present utility model;

[0020] Figure 5 is a perspective view of the encoder fixing device of the present utility model.

[0021] Some of the drawings in the attached drawings are described as follows:

[0022] 1. L-shaped cover plate; 2. Probe fixing device; 3. Encoder fixing device; 4. Sliding table fixing device; 5. First protrusion; 6. Circular protrusion; 7. First groove; 8. Second groove; 9. Third groove; 10. Fourth groove; 11. Fifth groove; 12. Sixth groove; 13. First threaded hole; 14. Second threaded hole; 15. Third threaded hole; 16. Fourth threaded hole; 17. Seventh groove; 18. Eighth groove; 19. Connecting piece; 20. Sixth threaded hole; 21. Fifth threaded hole; 22. Inclined surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will describe in detail the exemplary embodiments, features, and aspects of the present utility model with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0024] The present utility model provides an L-shaped ultrasonic probe detection fixture, as Figures 1 - 5As shown in the figure, it includes an L-shaped cover plate 1 and a slide table fixing device 4, and the L-shaped cover plate 1 is connected to the side wall of the slide table fixing device 4.

[0025] On one side of the L-shaped cover plate 1, there are a first protrusion 5 and a first groove 7 for connecting with the slide table fixing device 4.

[0026] On the side of the slide table fixing device 4 connected to the L-shaped cover plate 1, there are a second groove 8, a third groove 9, and a fourth groove 10. The second groove 8 and the third groove 9 are in a communicating state. The second groove 8 cooperates with the first protrusion 5 to form a first moving space. The fourth groove 10 is symmetrically arranged with the first groove 7 to form a second moving space. A connecting piece 19 is provided at the second end of the slide table fixing device 4. The slide table fixing device 4 is connected to an external connecting device through the connecting piece 19, and a sixth threaded hole 20 is provided on the connecting piece 19.

[0027] A probe fixing device 2 is arranged in the first space. The probe fixing device 2 is connected to the inner side wall of the second groove 8. A fifth groove 11 and a sixth groove 12 are provided on the probe fixing device 2. The fifth groove 11 and the sixth groove 12 are in a communicating state with the third groove 9.

[0028] An encoder fixing device 3 is arranged in the second space. An eighth groove 18 is provided at the first end of the encoder fixing device 3, and the eighth groove 18 is connected to the encoder. A circular protrusion 6 is provided on the side wall in the second space. A seventh groove 17 matching the circular protrusion 6 is provided at the second end of the encoder fixing device 3.

[0029] The area of the first protrusion 5 is smaller than the area of the first groove 7.

[0030] On the side wall of the second end of the slide table fixing device 4, there is an inclined surface 22 facilitating the bolt connection between the connecting plate and the external connecting device, so that the slide table fixing device 4 can be more easily connected to the external connecting device. After connection, the encoder directly abuts against the surface of the object to be measured and then starts to detect. When there is a protrusion on the surface, the spring will be adjusted so that the encoder can smoothly detect this position.

[0031] The rectangular volume formed by the probe fixing device 2 is the same as the space volume of the first space.

[0032] The L-shaped cover plate 1 is provided with a plurality of first threaded holes 13. At the connection between the slide table fixing device 4 and the L-shaped cover plate 1, a plurality of second threaded holes 14 matching the first threaded holes 13 are provided. On the side wall of the probe fixing device 2, a plurality of third threaded holes 15 are provided. On the side wall in the second groove 8, a plurality of fourth threaded holes 16 matching the third threaded holes 15 are provided. After the screw passes through the third threaded hole 15, it is connected to the fourth threaded hole 16. The screw can adjust the distance between the third threaded hole 15 and the fourth threaded hole 16, so as to adjust the relative position of the probe fixing device 2 in the first space according to different probes. On the side wall of the eighth groove 18, a fifth threaded hole 21 for connecting with the encoder is provided.

[0033] A spring is further arranged in the second space. The first end of the spring is connected to the circular protrusion 6, and the second end of the spring is connected to the seventh groove 17, so that the encoder fixing device 3 can move in the second space, thereby meeting the acquisition requirements of different encoders. When installing the encoder, the encoder fixing device 3 is pulled outwards, and the spring is in a stretched state. After the installation is completed, under the action of the elastic force, the encoder fixing device 3 resets to its original position.

[0034] During the working state:

[0035] First, place the probe into the probe fixing device 2. This component is designed according to the probe size and can hold the probe. Then, put four bolts into the holes of the third threaded hole 15 and the fourth threaded hole 16 respectively and rotate them to tighten, and then put on the corresponding springs to form a set of probe shock absorption devices.

[0036] Secondly, the encoder connecting device is fixed to the encoder through the fifth threaded hole 21. Then, the whole device is put into the third groove 9 by sleeving the spring through the circular protrusion 6 and the seventh groove 17. Since the connection of the two important components has been completed, Figure 2 The cover plate is fixed to the whole by screws to obtain Figure 1 The overall structure is assembled.

[0037] Finally, assembling the assembled module to the slide table module can achieve measurement.

[0038] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An L-shaped ultrasonic probe detection fixture, characterized in that: It comprises an L-shaped cover plate and a slide fixing device, wherein the L-shaped cover plate is connected to the side wall of the slide fixing device; One side of the L-shaped cover plate is provided with a first protrusion and a first groove for connecting with the slide fixing device; A second groove, a third groove and a fourth groove are provided on one side of the slide fixing device connected to the L-shaped cover plate, the second groove is in a communicating state with the third groove, the second groove cooperates with the first protrusion to form a first space, and the fourth groove is symmetrically arranged with the first groove to form a second space; a connecting piece is provided at the second end of the slide fixing device, and the slide fixing device is connected to the external connecting device through the connecting piece; A probe fixing device is provided in the first space, the probe fixing device is connected to the inner side wall of the second groove, a fifth groove and a sixth groove are provided on the probe fixing device, and the fifth groove and the sixth groove are in communication with the third groove; An encoder fixing device is provided in the second space, an eighth groove is provided at the first end of the encoder fixing device, an encoder is installed inside the eighth groove, a circular protrusion is provided on the side wall in the second space, and a seventh groove matching the circular protrusion is provided on the second end of the encoder fixing device.

2. The L-shaped ultrasonic probe detection fixture according to claim 1, characterized in that: A cross-sectional area of ​​the first protrusion is smaller than a cross-sectional area of ​​the first groove.

3. The L-shaped ultrasonic probe detection fixture according to claim 1, characterized in that: The side wall of the second end of the slide fixing device is provided with an inclined surface for facilitating bolt connection between the connecting member and the external connecting device.

4. The L-shaped ultrasonic probe detection fixture according to claim 1, characterized in that: The volume of the probe fixing device is the same as the spatial volume of the first space.

5. The L-shaped ultrasonic probe detection fixture according to claim 1, characterized in that: The L-shaped cover plate is provided with a plurality of first threaded holes, and a plurality of second threaded holes matching the first threaded holes are provided at the connection between the slide fixing device and the L-shaped cover plate; a plurality of third threaded holes are provided on the side wall of the probe fixing device, and a plurality of fourth threaded holes matching the third threaded holes are provided on the side wall in the second groove; a fifth threaded hole for connecting with an encoder is provided on the side wall of the eighth groove.

6. The L-shaped ultrasonic probe detection fixture according to claim 1, characterized in that: The second space is further provided with a spring, a first end of the spring is connected to the circular protrusion, and a second end of the spring is connected to the seventh groove.

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