Profile surface detection device

Abstract

The present invention relates to the technical field of profile detection, and in particular to a profile surface detection device, comprising a base, wherein two groups of waveguide components are arranged inside the base, wherein the waveguide components include a first waveguide plate and a second waveguide plate, wherein the first waveguide plate and the second waveguide plate are arranged obliquely, and the first waveguide plate and the second waveguide plate are arranged at ends close to the discharge member away from each other to form an outward expansion shape, wherein the first waveguide plate and the second waveguide plate are respectively provided with semicircular ceramic sheets at ends close to the discharge member, and the bottom of the first waveguide plate is provided with a plurality of near-field probes and a plurality of far-field probes. The advantage is that the ceramic sheet enables ultrasonic waves to be rebounded more concentratedly, and the first waveguide plate and the second waveguide plate form an outward expansion shape, which helps to guide the diffused sound waves to a more specific area, and combined with the rebound effect of the ceramic sheet, the concentration of the sound waves is further enhanced, so that the intensity of the received ultrasonic signal is increased, thereby improving the sensitivity and accuracy of the detection.

Description

Technical Field

[0001] The invention relates to the technical field of profile detection, and in particular to a profile surface detection device. Background Art

[0002] The flatness, smoothness, crack-free and rust-free characteristics of the profile surface are key indicators of its quality. Through strict surface testing, unqualified products can be discovered and eliminated in a timely manner to prevent the overall performance degradation caused by surface defects. In certain application fields, such as aerospace and automobile manufacturing, the strength and durability of the profile are directly related to the safety of product use.

[0003] At present, a traditional profile surface detection device usually adopts an ultrasonic detection method when performing profile detection. The ultrasonic sensor detects objects by emitting and receiving ultrasonic waves, but the propagation speed of ultrasonic waves in the air is affected by environmental factors such as temperature and humidity. Under different environmental conditions, the change in sound speed can easily lead to reduced detection accuracy. At the same time, during the propagation process of ultrasonic waves, the energy will gradually decay, the energy diffusion will be serious and the loss will be large, and the depth that can penetrate the inspected material will be limited, making it impossible to perform effective detection. Energy loss will also cause the intensity of the received ultrasonic signal to weaken, thereby affecting the sensitivity of the detection. Reduced sensitivity means that the ability to detect tiny defects will decrease, making the equipment less practical. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcoming of poor practicability of the detection device in the prior art and to propose a profile surface detection device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a profile surface detection device, including a base, the interior of the base is filled with deionized water, the interior of the base is provided with a discharge piece through a sliding component, the discharge piece is arc-shaped, two groups of waveguide components are provided inside the base, the two groups of waveguide components are symmetrically distributed on both sides of the discharge piece, the waveguide components include a first waveguide plate and a second waveguide plate, the first waveguide plate and the second waveguide plate are fixedly connected to the inner wall of the base, the first waveguide plate is located above the second waveguide plate, the first waveguide plate and the second waveguide plate are inclined, and the ends of the first waveguide plate and the second waveguide plate close to the discharge piece are away from each other to form an outward expansion shape, the ends of the first waveguide plate and the second waveguide plate close to the discharge piece are respectively provided with semicircular ceramic sheets, and the thickness of the ceramic sheets gradually decreases along the direction close to the discharge piece, and a plurality of near-field probes and a plurality of far-field probes are provided at the bottom of the first waveguide plate.

[0006] Preferably, a plurality of first rotating members are provided at the bottom of the first waveguide plate, the plurality of first rotating members are respectively fixedly connected to a first rotating shell, and the plurality of first rotating shells are respectively fixedly connected to a plurality of near-field probes.

[0007] Preferably, a plurality of second rotating members are provided at the bottom of the first waveguide plate, the plurality of second rotating members are evenly distributed on a side of the plurality of first rotating members away from the discharge member, the plurality of second rotating members are respectively fixedly connected to a second rotating shell, and the plurality of second rotating shells are respectively fixedly connected to a plurality of far-field probes.

[0008] Preferably, a controller is provided on the outer wall of the base, and the plurality of near-field probes are fixedly connected to the controller via a first connecting line, and the controller controls the sound wave output frequency and power of the near-field probe via the first connecting line; the plurality of far-field probes are fixedly connected to the controller via a second connecting line, and the controller controls the sound wave output frequency and power of the far-field probe via the second connecting line.

[0009] Preferably, the sliding assembly comprises a sliding platform, a sliding groove is provided at the bottom of the inner wall of the base, the sliding platform is slidably connected to the sliding groove, and the material discharge member is fixedly mounted on the top of the sliding platform.

[0010] Preferably, two silicone rubber pads are provided on a side of the material discharging member away from the sliding platform, and the silicone rubber pads are strip-shaped, and the two silicone rubber pads are symmetrically distributed at both ends of the side wall of the material discharging member.

[0011] Preferably, a cover plate is fixedly mounted on the top of the base, and the cover plate is made of glass.

[0012] Preferably, the top of the cover plate is provided with two openings, and the two openings are symmetrically distributed on the top of the cover plate.

[0013] Preferably, two receiving grooves are provided inside the cover plate, the two receiving grooves are located between the two openings, the two receiving grooves are slidably connected with opening and closing plates respectively, and the two opening and closing plates correspond to the two openings respectively.

[0014] Preferably, the first waveguide plate and the second waveguide plate are both made of copper material, and the material placing member is made of acrylic plate material.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The present invention reduces the interference and attenuation of ultrasonic waves during propagation by installing a first waveguide plate and a second waveguide plate made of copper and using deionized water as a coupling medium, thereby improving the penetration and detection depth of ultrasonic waves. The first waveguide plate and the second waveguide plate are far away from each other at one end close to the discharge member, and the two form an outward-expanding shape. The ends of the first waveguide plate and the second waveguide plate close to the discharge member are respectively provided with semicircular ceramic sheets, and the thickness of the ceramic sheets gradually decreases along the direction close to the discharge member. The semicircular shape of the ceramic sheets enables the ultrasonic waves to be more concentratedly rebounded when propagating to the ceramic sheets. As the thickness of the ceramic sheets gradually decreases, the rebounded ultrasonic energy is more focused, reducing the diffusion and loss of energy. The first waveguide plate and the second waveguide plate form an outward-expanding shape, which helps to guide the sound waves that may have been diffused to a more specific area, and combined with the rebound effect of the ceramic sheets, the concentration of the sound waves is further enhanced. Due to the enhanced concentration of the sound wave rebound, the intensity of the received ultrasonic signal is increased, which helps to improve the sensitivity and accuracy of the detection.

[0017] 2. The present invention installs devices such as far-field probes and near-field probes. The near-field probes are evenly distributed on one side of the far-field probe close to the unloading piece. Although the sound pressure distribution in the near-field area is complex, its high-resolution characteristics enable surface defects close to the probe to be more accurately identified. The stable sound pressure distribution of the far-field probe ensures comprehensive detection of the entire profile, makes up for the detection blind area of ​​the near-field probe, and makes the detection result more complete and reliable. The first rotating member and the second rotating member drive the near-field probe and the far-field probe to rotate, and the profile is detected using the principle of phased array technology. Ultrasonic waves at multiple angles are emitted simultaneously, realizing all-round and multi-angle scanning of the object to be tested, which can more comprehensively cover the tested area and reduce the possibility of missed detection. In addition, the phased array technology has the ability of dynamic deep focusing, and the focusing depth can be adjusted as needed, thereby improving the sensitivity and resolution of the detection. The phased array technology realizes the same phase technology by deflecting the probe, so that the wavelengths are superimposed, further enhancing the penetration of the ultrasonic wave, which is helpful for more in-depth defect detection on the inner surface of metal ceramics, thereby enhancing the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall side view structure of a profile surface detection device proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a base and a waveguide plate of a profile surface detection device proposed by the present invention;

[0020] Figure 3 for Figure 2 A is an enlarged structural diagram;

[0021] Figure 4A schematic diagram of the cover plate and receiving slot structure of a profile surface detection device proposed by the present invention;

[0022] Figure 5 This is a schematic structural diagram of a first rotating member and a waveguide plate of a profile surface detection device proposed by the present invention;

[0023] Figure 6 This is a schematic structural diagram of a first rotating member and a first rotating shell of a profile surface detection device proposed in the present invention.

[0024] In the figure: 1 base, 2 controller, 3 cover plate, 4 storage slot, 5 opening and closing plate, 6 sliding slot, 7 material discharge part, 8 silicone rubber pad, 9 first waveguide plate, 91 second waveguide plate, 10 first connecting line, 11 near-field probe, 12 first rotating part, 13 first rotating shell, 14 second connecting line, 15 far-field probe, 16 second rotating part, 17 second rotating shell. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figures 1 to 6 , a profile surface detection device, including a base 1, a cover plate 3 is fixedly installed on the top of the base 1, and two openings are opened on the top of the cover plate 3, and the two openings are symmetrically distributed on the top of the cover plate 3. The cover plate 3 is made of glass, allowing the operator to directly observe the detection status of the profile without opening the cover plate 3, which is helpful for real-time monitoring of the detection process. Two storage grooves 4 are arranged inside the cover plate 3, and the two storage grooves 4 are symmetrically distributed inside the cover plate 3 and located between the two openings. The two storage grooves 4 are respectively slidably connected with opening and closing plates 5, and the side walls of the opening and closing plates 5 are fixedly installed with handles. The two opening and closing plates 5 correspond to the two openings respectively. A sliding groove 6 is arranged at the bottom of the inner wall of the base 1, and the sliding groove 6 is slidably connected with a sliding table. A material placing part 7 is fixedly installed on the top of the sliding table. The profile to be detected It is a cylindrical metal ceramic, and the discharge piece 7 is arc-shaped. The discharge piece 7 is made of acrylic plate material. The acrylic plate can significantly reduce the interference to ultrasonic waves in water, ensuring that ultrasonic waves can effectively act on the surface of metal ceramics. The acrylic plate is relatively light and easy to install and move. Two strip-shaped silicone rubber pads 8 are arranged on the side of the discharge piece 7 away from the sliding table. The two silicone rubber pads 8 are symmetrically distributed at both ends of the side wall of the discharge piece 7. The silicone rubber pads 8 have good elasticity and friction, which can effectively prevent the metal ceramic from sliding or shifting during cleaning or testing. The softness of silicone rubber can reduce the impact and friction between the metal ceramic and the discharge piece 7, and protect the surface of the metal ceramic from damage. The electric slide controls the moving position and speed of the discharge piece 7 to ensure the accuracy and stability of the detection process.

[0027] The side wall of the base 1 is provided with a controller 2, and two groups of waveguide components are provided inside the base 1. The two groups of waveguide components are symmetrically distributed on both sides of the sliding groove 6. The waveguide components include a first waveguide plate 9 and a second waveguide plate 91. The first waveguide plate 9 and the second waveguide plate 91 are respectively fixedly connected to the inner wall of the base 1, and the first waveguide plate 9 is located above the second waveguide plate 91. The first waveguide plate 9 and the second waveguide plate 91 are both made of copper material. Copper is an excellent conductor and can efficiently conduct sound waves, reduce the energy loss of sound waves during propagation, and ensure the strength and clarity of sound wave signals. The first waveguide plate 9 is The first waveguide plate 9 and the second waveguide plate 91 are inclined upward and downward, and the first waveguide plate 9 and the second waveguide plate 91 form an outward-expanding shape, which helps the sound waves to form a wider diffusion inside the base 1, so that the sound waves can cover a wider detection area, thereby improving the detection efficiency. The first waveguide plate 9 and the second waveguide plate 91 are respectively provided with semicircular ceramic sheets on one side close to the discharge piece 7. The setting of the ceramic sheets further enhances the focusing effect of the sound waves. The thickness of the ceramic sheets gradually decreases towards the discharge piece 7, so that the sound waves are more concentrated when reaching the surface of the profile, thereby improving the resolution and accuracy of the detection.

[0028] The bottom of the first waveguide plate 9 is rotatably connected to a plurality of first rotating members 12 and a plurality of second rotating members 16, and the plurality of first rotating members 12 are evenly distributed on one side of the plurality of second rotating members 16 close to the discharge member 7, and the plurality of first rotating members 12 are respectively fixedly connected to the first rotating shell 13, and the plurality of first rotating shells 13 are respectively fixedly connected to the near-field probe 11, and the near-field probe 11 is fixedly connected to the controller 2 through the first connecting line 10, and the plurality of second rotating members 16 are respectively fixedly connected to the second rotating shell 17, and the plurality of second rotating shells 17 are respectively fixedly connected to the far-field probe 15, and the far-field probe 15 is fixedly connected to the controller 2 through the second connecting line 14, and the controller 2 controls the sound wave output frequency and power of the near-field probe 11 and the far-field probe 15 through the first connecting line 10 and the second connecting line 14, and through the operation of the first rotating member 12 and the second rotating member 16, the near-field probe 11 and the far-field probe 15 rotate to realize the phased array technology (phased array technology is a technology that improves the propagation performance by controlling the phase of different wireless transmitting sub-arrays, effectively improving the signal coverage range and quality The phased array technology allows the precise control and scanning of the acoustic beam, which can cover a larger detection area and improve the comprehensiveness and accuracy of the detection. The rotation of the probe makes the detection process no longer static, but can dynamically adjust the detection angle and range, which is particularly beneficial for the detection of complex profile surfaces. The combination of the near-field probe 11 and the far-field probe 15 can respectively detect different areas and depths of the profile surface. The near-field probe 11 is suitable for detecting surface or near-surface defects, while the far-field probe 15 can detect deeper defects, thereby improving the sensitivity and depth of detection. The phase-identical technology is achieved by controlling the rotation of the near-field probe 11 and the far-field probe 15. The phase refers to the state of the wave, which can be understood as the position of the crest or trough. When the phases of the ultrasonic waves emitted by the near-field probe 11 and the far-field probe 15 are the same, their crests and troughs will appear at the same time, which means that their vibration directions and amplitudes are consistent. In optics or circuits, waves with the same phase can reinforce each other to make the signal stronger, thereby helping to enhance the detection effect.

[0029] The interior of the base 1 is filled with deionized water, and the conductivity of deionized water is very low. In ultrasonic testing, deionized water can help remove the air between the detection positions, ensuring that the ultrasonic wave can effectively penetrate the object to be tested, thereby achieving the purpose of accurate detection. In addition, deionized water contains almost no ions and impurities, which can reduce interference with ultrasonic waves and improve the accuracy of detection.

[0030] In the present invention, the ultrasonic probe is an indispensable component structure of the profile surface detection device. The device improves the detection method and effect of the profile surface, so that when detecting hollow cylindrical metal ceramics, it can better detect defects and cracks on the outer and inner surfaces of the metal ceramics.

[0031] First, open the opening and closing plate 5 on one side of the cover plate 3 and push it into the storage groove 4 to make it leak out of the opening. Then simply wipe and clean the outer surface of the metal ceramic, and then place the metal ceramic on the discharge piece 7. The material of the discharge piece 7 is acrylic board, which can reduce the interference of ultrasonic waves in water. The setting of the silicone rubber pad 8 can increase the friction of the outer surface of the metal ceramic, so that it can be better placed on the discharge piece 7. The interior of the device is filled with deionized water. The lower end of the discharge piece 7 is fixedly connected to an electric slide, which drives the discharge piece 7 to slide inside the sliding groove 6. The cover plate 3 and the base 1 are fixedly connected, and the material of the cover plate 3 is glass, so the activities inside the base 1 can be clearly seen. When the test material is placed, pull the opening and closing plate 5 to close the opening.

[0032] The device is started by the controller 2. The first connecting line 10 and the second connecting line 14 are inserted into the base 1, and are used to control the sound wave output frequency and power of the near-field probe 11 and the far-field probe 15 respectively. The first rotating member 12 and the second rotating member 16 are arranged at the bottom of the first waveguide plate 9. The first rotating shell 13 and the second rotating shell 17 are connected to the first rotating member 12 and the second rotating member 16 respectively. The first rotating shell 13 and the second rotating shell 17 respectively drive the near-field probe 11 and the far-field probe 15 to rotate, thereby realizing the phased array technology. The material of the first waveguide plate 9 and the second waveguide plate 91 is copper, and there is a certain bevel angle between the first waveguide plate 9 and the second waveguide plate 91, and the two form an outward-expanding shape. According to the physical properties of copper, the waveguide plate can guide the sound wave in the water while reducing the reflection of the sound wave, thereby enhancing the sound wave detection effect. The ends of the first waveguide plate 9 and the second waveguide plate 91 are respectively provided with semicircular ceramic sheets, and the ceramic sheets rebound the outward-expanding sound waves. The thick-to-thin design can make the position of the diffused ultrasonic wave rebound more concentrated, thereby helping to enhance the detection effect.

[0033] When the metal ceramic enters the detection area, the near-field probe 11 and the far-field probe 15 are turned on. Through the design of the first waveguide plate 9 and the second waveguide plate 91, the far-field ultrasonic wave can cover the metal ceramic more accurately. Through the design of the ceramic sheet, the ultrasonic wave diffused in the near field can be reflected on the outer surface of the metal ceramic. Because the purity of deionization is high, the water contains almost no ions and impurities, which can reduce the interference with the ultrasonic wave and improve the accuracy of detection. The propagation rate of ultrasonic wave in water is high and the attenuation rate of sound waves is low, thereby performing better detection. The coordination of near-field and far-field ultrasonic waves can better perform detection. Although the sound pressure distribution in the near-field area is complex, it has a higher resolution for surface defects close to the probe, and the stable sound pressure distribution in the far field can ensure comprehensive detection of the entire profile. Signal superposition, signal averaging and other methods are used to improve the accuracy and reliability of detection.

[0034] The probe is deflected by phased array technology to achieve phase-matching technology, so that the wavelengths can be superimposed. At the same time, with the cooperation of deionized water, the superimposed wavelengths of ultrasonic waves after the phase is the same have a small attenuation in water, so that the ultrasonic waves have better penetration, and the inner surface of the metal ceramic is inspected for defects, while the detection and feedback effects are increased. The detection data is recorded on the controller 2, and the opening and closing plate 5 is opened to take out the detected metal ceramics.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A profile surface detection device, characterized in that: The invention comprises a base (1), the interior of the base (1) is filled with deionized water, a discharge piece (7) is arranged inside the base (1) via a sliding component, the discharge piece (7) is arc-shaped, two groups of waveguide components are arranged inside the base (1), the two groups of waveguide components are symmetrically distributed on both sides of the discharge piece (7), the waveguide components comprise a first waveguide plate (9) and a second waveguide plate (91), the first waveguide plate (9) and the second waveguide plate (91) are fixedly connected to the inner wall of the base (1), the first waveguide plate (9) is located at the second waveguide plate (91), and the first waveguide plate (9) is located at the second waveguide plate (9). Above the waveguide plate (91), the first waveguide plate (9) and the second waveguide plate (91) are arranged obliquely, and the ends of the first waveguide plate (9) and the second waveguide plate (91) close to the discharge member (7) are separated from each other to form an outward expansion shape, and the ends of the first waveguide plate (9) and the second waveguide plate (91) close to the discharge member (7) are respectively provided with semicircular ceramic sheets, and the thickness of the ceramic sheets gradually decreases along the direction close to the discharge member (7), and the bottom of the first waveguide plate (9) is provided with a plurality of near-field probes (11) and a plurality of far-field probes (15).

2. A profile surface detection device according to claim 1, characterized in that: A plurality of first rotating members (12) are provided at the bottom of the first waveguide plate (9); the plurality of first rotating members (12) are respectively fixedly connected to a first rotating shell (13); and the plurality of first rotating shells (13) are respectively fixedly connected to a plurality of near-field probes (11).

3. A profile surface detection device according to claim 1, characterized in that: A plurality of second rotating members (16) are arranged at the bottom of the first waveguide plate (9); the plurality of second rotating members (16) are evenly distributed on a side of the plurality of first rotating members (12) away from the discharge member (7); the plurality of second rotating members (16) are respectively fixedly connected to a second rotating shell (17); and the plurality of second rotating shells (17) are respectively fixedly connected to a plurality of far-field probes (15).

4. A profile surface detection device according to claim 1, characterized in that: A controller (2) is disposed on the outer wall of the base (1); the plurality of near-field probes (11) are respectively fixedly connected to the controller (2) via first connecting lines (10); the controller (2) controls the sound wave output frequency and power of the near-field probes (11) via the first connecting lines (10); the plurality of far-field probes (15) are respectively fixedly connected to the controller (2) via second connecting lines (14); the controller (2) controls the sound wave output frequency and power of the far-field probes (15) via the second connecting lines (14).

5. The profile surface detection device according to claim 1, characterized in that: The sliding assembly comprises a sliding platform, a sliding groove (6) is provided at the bottom of the inner wall of the base (1), the sliding platform is slidably connected to the sliding groove (6), and the material discharge member (7) is fixedly mounted on the top of the sliding platform.

6. A profile surface detection device according to claim 5, characterized in that: Two silicone rubber pads (8) are arranged on the side of the material discharging member (7) away from the sliding platform, and the silicone rubber pads (8) are strip-shaped. The two silicone rubber pads (8) are symmetrically distributed at the two ends of the side wall of the material discharging member (7).

7. A profile surface detection device according to claim 1, characterized in that: A cover plate (3) is fixedly mounted on the top of the base (1), and the cover plate (3) is made of glass.

8. A profile surface detection device according to claim 7, characterized in that: The top of the cover plate (3) is provided with two openings, and the two openings are symmetrically distributed on the top of the cover plate (3).

9. A profile surface detection device according to claim 8, characterized in that: Two receiving grooves (4) are arranged inside the cover plate (3), the two receiving grooves (4) are located between the two openings, the two receiving grooves (4) are respectively slidably connected with an opening and closing plate (5), and the two opening and closing plates (5) respectively correspond to the two openings.

10. The profile surface detection device according to claim 1, characterized in that: The first waveguide plate (9) and the second waveguide plate (91) are both made of copper material, and the material discharge member (7) is made of acrylic plate material.

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