Ultrasonic detection device for T-shaped reinforced structure

Abstract

The utility model relates to the field of rapid detection of composite material reinforced structures, and provides an ultrasonic detection device for a T-shaped reinforced structure, which comprises an ultrasonic probe, a probe wedge block, a clamp, an encoder and a water pipe, the clamp accommodates the T-shaped reinforced structure; the probe wedge block fixes the ultrasonic probe and provides elastic force; the ultrasonic probe is installed in the probe wedge block, the probe wedge block is installed in the clamp, and the probe wedge block moves up and down along the clamp; the encoder is arranged on the outer side of the clamp and is connected with the ultrasonic probe through a circuit; the water pipe is arranged on the upper portion of the clamp and provides coupling agents for detection. According to the utility model, the rapid detection of the T-shaped reinforcement can be realized, the consistency of detection results is ensured, the detection cost is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of rapid detection of composite material reinforced structures, in particular to an ultrasonic detection device for T-shaped reinforced structures. Background Art

[0002] Composite materials are widely used in the field of civil aviation due to their advantages such as high specific strength, high specific stiffness, and high degree of structural integration. Among all composite structural parts, the wall panel structure composed of skin and long stringers is relatively typical. Among them, the composite hat-shaped long stringers have a large cross-sectional size and can form a closed section with the skin, so that the hat-shaped reinforced wall panels have good stability and can withstand high compression loads; the torsional stiffness and bending stability of the composite hat-shaped long stringers are much better than the commonly used "T" and "I" section long stringers. Therefore, many civil aircraft models such as Boeing 787 and Airbus A350 currently use a large number of composite hat-shaped reinforced wall panel structures in the fuselage.

[0003] In order to ensure the forming quality of the reinforced structure, it is necessary to conduct 100% non-destructive testing on the components. At present, the detection of T-shaped reinforcement mainly adopts manual detection method to achieve full coverage of T-shaped reinforcement. The detection method and detection trajectory are as follows: Figure 6 As shown in the figure. Due to the small detection area, the detection combination of conventional phased array probes and encoders has the problem of insufficient space. Therefore, the current main manual detection method is to use a handheld ultrasonic A-scan probe to perform a full-coverage scan of the entire area. The probe angle and position control of the handheld probe will affect the detection signal strength and detection area, thereby affecting the detection quality stability and detection efficiency. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and, in response to the needs for improving detection quality stability and detection efficiency, provide an ultrasonic detection device for T-shaped reinforced structures, which can replace the handheld probe to realize ultrasonic detection of T-shaped reinforcements, improve detection efficiency, and ensure the stability of detection quality.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model provides an ultrasonic detection device for a T-shaped reinforced structure, comprising an ultrasonic probe, a probe wedge, a fixture, an encoder, and a water pipe;

[0007] The clamp comprises a first part and a second part, the first part and the second part are spliced ​​and connected with each other; a through first space is arranged in the middle of the clamp for accommodating the T-shaped reinforcement structure;

[0008] The probe wedge is used to fix the ultrasonic probe and provide elastic force for the ultrasonic probe, so that the ultrasonic probe is elastically attached to the part to be detected of the T-shaped reinforced structure;

[0009] The ultrasonic probe is installed in the probe wedge, and the probe wedge is installed in the internal space formed by the first part and the second part of the clamp, and the probe wedge can move up and down along the clamp;

[0010] The encoder is arranged outside the fixture, and the encoder is connected to the ultrasonic probe through a line;

[0011] The water pipe is arranged on the upper part of the clamp and is used to provide coupling agent for ultrasonic testing.

[0012] As for any possible implementation method described above, an implementation method is further provided, wherein the upper ends of the first part and the second part of the clamp are both provided with convex grooves and concave grooves, the convex groove of the first part corresponds to the concave groove of the second part, and the concave groove of the first part corresponds to the convex groove of the second part, and the first part and the second part are spliced ​​and snapped into a whole through the convex grooves and the concave grooves.

[0013] As for any possible implementation as described above, an implementation is further provided, wherein the clamp also includes a clamp extension seat, and the clamp extension seat is arranged between the first part and the second part, and the two ends of the clamp extension seat are respectively engaged with the first part and the second part, so that the first part, the clamp extension seat and the second part are connected as a whole, which is used to adjust the scale of the first space to adapt to T-shaped reinforced structures of different thicknesses.

[0014] As described above, any possible implementation method further provides an implementation method, wherein the ultrasonic probe includes an A-scan probe and a phased array probe, and the probe wedge includes an A-scan wedge and a phased array wedge; the A-scan probe is installed in the A-scan wedge, and the phased array probe is installed in the phased array wedge.

[0015] Any possible implementation as described above further provides an implementation, wherein the A-scan probe head is provided with an A-scan probe delay block, and the tail is connected to an A-scan probe cable; the A-scan probe delay block is a plexiglass cylinder of a certain thickness, which can be replaced after being worn. It is installed in front of the A-scan probe and contacts the sample surface during detection, which can form a sharp interface wave, reduce the surface blind area during detection, and prevent probe wear;

[0016] The A-sweep wedge block comprises an A-sweep wedge block body, an A-sweep wedge block baffle, and an A-sweep wedge block rubber block; the A-sweep wedge block body is in a cube or rectangular shape, and has a first end and a second end opposite to each other, the first end is provided with an A-sweep probe delay block hole, and the second end is provided with an A-sweep probe groove; the top of the A-sweep wedge block body is provided with an opening;

[0017] The A-scan probe delay block extends from the hole of the A-scan probe delay block, and the A-scan probe cable extends from the opening on the top of the A-scan wedge body; the A-scan wedge rubber block is installed from the A-scan probe groove and fixed by the A-scan wedge baffle to provide elastic force for the extension of the A-scan probe delay block.

[0018] According to any possible implementation described above, an implementation is further provided, wherein the phased array wedge is in the shape of a rectangular parallelepiped as a whole, and includes a hollow groove, a phased array wedge fixing pin hole, a phased array wedge fixing pin, and a phased array wedge rubber block; the phased array probe is installed in the hollow groove; a phased array wedge rubber block is arranged between the back side of the phased array probe and the wall of the hollow groove to provide elastic force for the extension of the phased array probe; and the phased array probe is fixed in the up and down directions by inserting the phased array wedge fixing pin into the phased array wedge fixing pin hole.

[0019] According to any possible implementation described above, there is further provided an implementation, wherein the A-scan wedge, the phased array wedge and the fixture are connected in the following manner:

[0020] The first part and the second part of the clamp are both provided with scaled bar holes in the up and down directions, and the A-scan wedge and the phased array wedge are both provided with wedge fixing studs corresponding to the scaled bar holes; the wedge fixing studs extend out from the scaled bar holes, and according to the detection height requirements, the wedge fixing studs are fixed at the set height position of the scaled bar holes by nuts.

[0021] As any possible implementation described above, there is further provided an implementation, wherein tooling connection studs are disposed on the outer sides of both the first part and the second part of the clamp.

[0022] As any possible implementation described above, a further implementation is provided, wherein a layer of anti-wear sheet is attached to the bottom of the clamp, and the anti-wear sheet is made of elastic rubber material.

[0023] As for any possible implementation manner described above, there is further provided an implementation manner, wherein the material of the clamp is plastic, and the material of the probe wedge is cross-linked polystyrene.

[0024] An ultrasonic testing method for a T-shaped reinforced structure, the method using the above-mentioned device, the method comprising:

[0025] S1. Determine the ultrasonic testing scheme: determine the ultrasonic A-scan testing scheme or the ultrasonic phased array testing scheme according to the specific conditions of the T-shaped reinforced structure to be tested;

[0026] S2. Install the ultrasonic probe in the probe wedge:

[0027] The ultrasonic probe is an A-scan probe or a phased array probe;

[0028] When the A-scan probe is selected, the A-scan wedge is selected accordingly; the installation steps are as follows: place the A-scan probe in the A-scan wedge, the A-scan probe delay block extends out from the hollowing of the A-scan probe delay block, the A-scan probe cable extends out from the top of the A-scan wedge, the A-scan wedge rubber block is installed from the A-scan probe groove, and is fixed by the A-scan wedge baffle;

[0029] When a phased array probe is selected, a phased array wedge is selected accordingly; the installation steps are: install the phased array probe in the hollow groove of the phased array wedge, and place the phased array wedge rubber block between the back of the phased array probe and the wall of the hollow groove, and then use the phased array wedge fixing pin to insert the phased array wedge fixing pin hole to fix the phased array probe in the up and down directions;

[0030] S3. Install the probe wedge on the fixture:

[0031] Open the first and second parts on both sides of the fixture, put the installed ultrasonic probe and probe wedge combination into the fixture, extend the A-scan wedge fixing stud or the phased array wedge fixing stud from the scaled bar hole, and fix it at the set height of the scaled bar hole through a nut according to the detection height requirement, and then the first and second parts of the fixture are spliced ​​and clamped into a whole through the groove and the convex groove, and the first and second parts of the fixture are respectively placed on both sides of the T-shaped reinforced structure to be detected; the ultrasonic probe is attached to the part to be detected of the T-shaped reinforced structure under the action of elastic force.

[0032] S4, the water pipe is fixed to the fixture, and an external water pump is connected to provide coupling agent for detection; the encoder, A-scan probe or phased array probe is connected to the external detection equipment through cables;

[0033] S5. After installation, the device performs ultrasonic testing on the T-shaped reinforced structure to be tested in a handheld manner or in an automatic manner connected with an automatic tooling.

[0034] When using the ultrasonic A-scan detection scheme, it includes the ultrasonic reflection method and the ultrasonic penetration method;

[0035] When the ultrasonic reflection method is used, the A-scan probe and the A-scan wedge are installed only in the first part or the second part of the fixture; when the ultrasonic penetration method is used, the A-scan probe and the A-scan wedge are installed in both the first part and the second part of the fixture;

[0036] When an ultrasonic phased array testing solution is adopted, a phased array probe and a phased array wedge are installed only in one of the first part and the second part of the fixture.

[0037] The beneficial effects of the utility model are:

[0038] 1. The ultrasonic detection device of the utility model is mainly used for detecting T-shaped long stringer reinforced structure, and can be adapted to ultrasonic detection A-scan reflection method (single probe), A-scan penetration method (dual probe) and phased array detection method (phased array probe), and is suitable for a wide range of detection methods and detection technologies.

[0039] 2. The ultrasonic detection device can be used for manual detection, which is suitable for the special environment of in-service detection; it can also be connected to an external electric tooling for automatic detection, which is suitable for the better detection environment in the manufacturing stage. Whether it is manual detection or automatic detection, the detection device can provide a continuous and stable contact force and contact angle (90°) between the detection probe and the surface of the workpiece to be detected, ensuring the coupling of the probe, thereby ensuring the stability of the detection signal.

[0040] 3. The ultrasonic detection device adopts two-stage splicing to facilitate the installation of internal detection probes and wedges. At the same time, the design of rubber blocks and fixture extension seats ensures the adaptability of different T-shaped long stringer reinforcement thicknesses; the fixture with scale bar hole design can adjust the probe position up and down to ensure that the detection range covers the entire T-shaped long stringer reinforcement height. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 Shown is a schematic diagram of the overall structure of an ultrasonic detection device for a T-shaped reinforced structure according to an embodiment of the utility model.

[0042] Figure 2 The figure is a schematic diagram of the disassembled structure of an ultrasonic detection device for a T-shaped reinforced structure in an embodiment.

[0043] Figure 3 The following are schematic diagrams of the structure of the clamp in the embodiment: (a) is an overall assembly diagram; (b) and (c) are disassembly diagrams; (d) is a schematic diagram of the clamp extension seat.

[0044] Figure 4 The figure shows the schematic diagram of the A-scan probe and wedge structure in the embodiment, (a) is an assembly diagram, (b) is a schematic diagram of the A-scan probe, and (c) is a schematic diagram of the A-scan wedge.

[0045] Figure 5 The diagrams are schematic diagrams of the phased array probe and wedge structure in the embodiment, (a) is an assembly diagram, (b) is a schematic diagram of the phased array probe, and (c) is a schematic diagram of the phased array wedge.

[0046] Figure 6 Shown is a schematic diagram of the manual detection method and detection trajectory of the prior art.

[0047] In the figure: 1-T-shaped reinforcement structure; 2-clamp; 2.1-groove; 2.2-convex groove; 2.3-water pipe clamp; 2.4-stud connected to the tooling; 2.5-stud connected to the encoder; 2.6-bar hole with scale; 3-A sweep wedge; 3.1-A sweep probe groove; 3.2-A sweep wedge fixing stud; 3.3-A sweep probe delay block digging hole; 4-A sweep probe; 4.1-A sweep probe delay block; 4.2-A sweep probe cable; 5-A sweep wedge baffle; 5.1-A sweep wedge rubber block seat; 5.2 -A-sweep wedge fixing stud hole; 6-A-sweep wedge rubber block; 7-phased array wedge; 7.1-phased array wedge hollow groove; 7.2-phased array wedge fixing pin hole; 7.3-phased array wedge fixing stud; 8-phased array probe; 8.1-phased array probe cable; 9-phased array wedge fixing pin; 10-phased array wedge rubber block; 11-encoder; 12-anti-wear sheet; 13-water pipe; 13.1-retractable water pipe head; 14-clamp extension seat; 14.1-extension seat groove; 14.2-extension seat convex groove. DETAILED DESCRIPTION

[0048] The following will describe the specific embodiments of the utility model in detail with reference to the specific drawings. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be considered isolated, and they can be combined with each other to achieve better technical effects.

[0049] like Figure 1 , Figure 2 As shown, an ultrasonic detection device for a T-shaped reinforced structure according to an embodiment of the utility model includes an ultrasonic probe 4 or 8, a probe wedge 3 or 7, a fixture 2, an encoder 11, and a water pipe 13;

[0050] The clamp 2 comprises a first part and a second part, and the first part and the second part are spliced ​​and connected with each other; a through first space is arranged in the middle of the clamp 2 for accommodating the T-shaped reinforcement structure;

[0051] The probe wedge 3 or 7 is used to fix the ultrasonic probe 4 or 8 and provide elastic force for the ultrasonic probe 4 or 8, so that the ultrasonic probe 4 or 8 elastically fits the to-be-detected part of the T-shaped reinforced structure;

[0052] The ultrasonic probe 4 or 8 is installed in the probe wedge 3 or 7, and the probe wedge 3 or 7 is installed in the internal space formed by the first part and the second part of the clamp 2, and the probe wedge 3 or 7 can move up and down along the clamp 2;

[0053] The encoder 11 is arranged outside the fixture 2, and the encoder 11 is connected to the ultrasonic probe 4 or 8 through a line;

[0054] The water pipe 13 is disposed on the upper portion of the fixture 2 and is used to provide coupling agent for ultrasonic testing.

[0055] In a specific embodiment, the material of the clamp 2 is plastic material, the height of the clamp 2 is required to be higher than the height of the T-shaped long truss reinforcement to be tested, and the width is required to exceed the thickness of the T-shaped long truss reinforcement to be tested. At the same time, a clamp extension seat 14 is designed, and the clamp extension seat 14 is arranged between the first part and the second part. The two ends of the clamp extension seat 14 are respectively engaged with the first part and the second part, and the first part, the clamp extension seat 14, and the second part are connected as a whole, which is used to adjust the size of the first space to adapt to T-shaped reinforcement structures of different thicknesses.

[0056] In a specific embodiment, both the first part and the second part can be installed with ultrasonic probes, and both A-scan probes 4 and phased array probes 8 are applicable. If the ultrasonic A-scan reflection method is selected for detection, one A-scan probe 4 can be installed on one side of the fixture 2; if the ultrasonic A-scan penetration method is selected for detection, one A-scan probe 4 can be installed on each side of the fixture 2 for coordinated use; if the phased array detection is selected, one phased array probe 8 can be installed on one side of the fixture 2. The A-scan probe 4 is installed in the A-scan wedge 3, and the phased array probe 8 is installed in the phased array wedge 7.

[0057] In a specific embodiment, Figure 3 As shown, the upper ends of the first part and the second part of the clamp 2 are both provided with a convex groove 2.2 and a concave groove 2.1, the convex groove 2.2 of the first part corresponds to the concave groove 2.1 of the second part, the concave groove 2.1 of the first part corresponds to the convex groove 2.2 of the second part, and the first part and the second part are spliced ​​and snapped into a whole through the convex groove 2.2 and the concave groove 2.1.

[0058] In a specific embodiment, Figure 2 As shown, a layer of anti-wear sheet 12 is pasted on the bottom of the clamp 2, and the material is elastic rubber material, which is used to protect the surface of the workpiece.

[0059] In a specific embodiment, Figure 3 As shown, the fixture 2 is provided with a stud 2.5 connected to the encoder 11 for fixing the encoder 11; a water pipe clamp 2.3 is provided for fixing the water pipe 13 to ensure that the water outlet of the water pipe 13 is above the ultrasonic probe 4 or 8; and a stud 2.4 is provided for connecting with the tooling, which can be subsequently connected with the automatic tooling for extended use.

[0060] In a specific embodiment, the A-scan wedge 3 and the phased array wedge 7 are used to fix and protect the ultrasonic probe 4 or 8, and at the same time, a certain elastic force is applied to the contact surface between the ultrasonic probe 4 or 8 and the workpiece surface to ensure the coupling of the probe. The wedge material can be designed to be cross-linked polystyrene.

[0061] In a specific embodiment, Figure 4 As shown, the A-scan probe 4 has an A-scan probe delay block 4.1 at its head and an A-scan probe cable 4.2 at its tail;

[0062] The A-sweep wedge 3 comprises an A-sweep wedge body, an A-sweep wedge baffle 5, and an A-sweep wedge rubber block 6; the A-sweep wedge body is in a cube or rectangular shape, having a first end and a second end opposite to each other, the first end is provided with an A-sweep probe delay block hole 3.3, and the second end is provided with an A-sweep probe groove 3.1; the top of the A-sweep wedge body is provided with an opening;

[0063] The A-scan probe delay block 4.1 extends out from the A-scan probe delay block hole 3.3, and the A-scan probe cable 4.2 extends out from the opening on the top of the A-scan wedge block body; the A-scan wedge block rubber block 6 is installed from the A-scan probe groove 3.1 and fixed by the A-scan wedge block baffle 5, providing elastic force for the extension of the A-scan probe delay block 4.1.

[0064] In a specific embodiment, Figure 5 As shown, the phased array wedge 7 is a rectangular parallelepiped as a whole, including a hollow groove 7.1, a phased array wedge fixing pin hole 7.2, a phased array wedge fixing pin 9, and a phased array wedge rubber block 10; the phased array probe 8 is installed in the hollow groove 7.1; a phased array wedge rubber block 10 is arranged between the back side of the phased array probe 8 and the wall of the hollow groove 7.1 to provide elastic force for the extension of the phased array probe 8; the phased array wedge fixing pin 9 is inserted into the phased array wedge fixing pin hole 7.2 to fix the phased array probe 8 in the up and down directions.

[0065] The A-scan wedge rubber block 6 and the phased array wedge rubber block 10 are made of elastic material and can be squeezed to bear stress.

[0066] In a specific embodiment, the A-scan wedge 3, the phased array wedge 7 and the fixture 2 are connected in the following manner:

[0067] The first and second parts of the clamp 2 are both provided with a scaled bar hole 2.6 in the up and down directions, and the A-scan wedge 3 and the phased array wedge 7 are both provided with a wedge fixing stud 3.2 or 7.3 corresponding to the scaled bar hole 2.6; the wedge fixing stud 3.2 or 7.3 extends out from the scaled bar hole 2.6, and according to the detection height requirements, the wedge fixing stud 3.2 or 7.3 is fixed at the set height position of the scaled bar hole 2.6 by a nut.

[0068] In a specific embodiment, both the first part and the second part of the clamp 2 are provided with tooling connection studs 2.4 on the outside for connecting with external automatic tooling.

[0069] The ultrasonic probe can be a conventional product in the art, and can be used in conjunction with the fixture 2, the probe wedge 3 or 7, and the encoder 11. The encoder 11 can be a conventional product in the art, and is connected to the fixture 2 to provide information on the probe movement distance.

[0070] An ultrasonic testing method for a T-shaped reinforced structure, the method using the above-mentioned device, the method comprising:

[0071] S1. Determine the ultrasonic testing scheme: determine the ultrasonic A-scan testing scheme or the ultrasonic phased array testing scheme according to the specific conditions of the T-shaped reinforced structure to be tested;

[0072] S2. Install the ultrasonic probe 4 or 8 in the probe wedge 3 or 7:

[0073] The ultrasonic probe is an A-scan probe 4 or a phased array probe 8;

[0074] When the A-scan probe 4 is selected, the A-scan wedge 3 is selected accordingly; the installation steps are as follows: the A-scan probe 4 is placed in the A-scan wedge 3, the A-scan probe delay block 4.1 extends from the A-scan probe delay block hollow 3.3, the A-scan probe cable 4.2 extends from the top of the A-scan wedge 3, the A-scan wedge rubber block 6 is installed from the A-scan probe groove 3.1, and is fixed by the A-scan wedge baffle 5;

[0075] When the phased array probe 8 is selected, the phased array wedge 7 is selected accordingly; the installation steps are: install the phased array probe 8 in the hollow groove 7.1 of the phased array wedge 7, and at the same time place the phased array wedge rubber block 10 between the back of the phased array probe 8 and the wall of the hollow groove 7.1, and then use the phased array wedge fixing pin 9 to insert the phased array wedge fixing pin hole 7.2 to fix the phased array probe 8 in the up and down directions;

[0076] S3. Install the probe wedge 3 or 7 on the fixture 2:

[0077] According to the size characteristics of the T-shaped reinforcement structure, the size of the fixture of the ultrasonic detection device is determined, requiring that the length of the scaled bar hole 2.6 of the fixture 2 is greater than the height of the T-shaped reinforcement, and the distance between the two end surfaces of the fixture 2 (the first space) is slightly greater than the thickness of the T-shaped reinforcement; at the same time, the design of the fixture extension seat 14 ensures the adaptability of different T-shaped long stringer reinforcement thicknesses;

[0078] Open the first and second parts on both sides of the clamp 2, put the installed ultrasonic probe 4 or 8 and the combination of the probe wedge 3 or 7 into the clamp 2, and extend the A-scan wedge fixing stud 3.2 or the phased array wedge fixing stud 7.3 from the scaled bar hole 2.6. According to the detection height requirement, fix it at the set height of the scaled bar hole 2.6 by a nut, and then the first and second parts of the clamp 2 are spliced ​​and clamped into a whole through the groove 2.1 and the convex groove 2.2. The first and second parts of the clamp 2 are respectively placed on both sides of the T-shaped reinforced structure to be detected; the ultrasonic probe 4 or 8 is attached to the part to be detected of the T-shaped reinforced structure under the action of elastic force.

[0079] S4, water pipe 13 is fixed to fixture 2 through water pipe clamp 2.3, and an external water pump is connected to provide coupling agent for detection; encoder 11 is connected to fixture 2 through encoder connection stud 2.5; encoder 11, A-scan probe 4 or phased array probe 8 are connected to external detection equipment through cables;

[0080] S5. After installation, the device performs ultrasonic testing on the T-shaped reinforced structure to be tested in a handheld manner or in an automatic manner connected with an automatic tooling.

[0081] In a specific embodiment, when an ultrasonic A-scan detection scheme is adopted, it includes an ultrasonic reflection method and an ultrasonic penetration method;

[0082] When the ultrasonic reflection method is used, the A-scan probe 4 and the A-scan wedge 3 are installed only on one of the first part or the second part of the fixture 2;

[0083] When the ultrasonic penetration method is used, the A-scan probe 4 and the A-scan wedge 3 are simultaneously installed on the first and second parts of the fixture 2;

[0084] When the ultrasonic phased array detection solution is adopted, the phased array probe 8 and the phased array wedge 7 are installed only on one of the first part and the second part of the fixture 2 .

[0085] The working principle of the utility model is as follows:

[0086] 1. The ultrasonic detection probe 4 or 8 is placed in the probe wedge 3 or 7, the probe wedge 3 or 7 is fixed in the fixture 2, and the ultrasonic probe 4 or 8 is fitted with the detection surface of the T-shaped long stringer to be detected; it is connected with the ultrasonic detection instrument through a cable to realize ultrasonic non-destructive detection of the T-shaped long stringer workpiece.

[0087] 2. An elastic rubber block 6 or 10 is installed between the ultrasonic probe 4 or 8 and the probe wedge 3 or 7. The extrusion force of the rubber block 6 or 10 is transmitted to the ultrasonic detection probe 4 or 8, generating a continuous and stable pressure on the contact surface between the ultrasonic probe 4 or 8 and the workpiece to be detected, thereby ensuring the coupling of the ultrasonic probe 4 or 8.

[0088] 3. The fixture 2 of the ultrasonic testing device is designed to be spliced ​​on both sides, which is convenient for installing the probe wedge 3 or 7 inside. The length of the scaled bar hole 2.6 of the fixture 2 is higher than the height of the T-shaped long stringer reinforcement to be tested. The detection probe 4 or 8 and the probe wedge 3 or 7 can be connected to the scaled bar hole 2.6 of the fixture 2 through the wedge fixing stud 3.2 or 7.3, and the ultrasonic probe 4 or 8 can be adjusted up and down so that the detection range covers the entire height of the T-shaped long stringer reinforcement. The thickness of the fixture 2 is designed to be slightly larger than the thickness of the T-shaped long stringer reinforcement, and the pressure on the contact surface between the probe and the workpiece to be tested is ensured by squeezing force of the elastic rubber block; for T-shaped long stringer reinforcements with greater thickness, the fixture extension seat 14 with designable thickness is used to ensure the adaptability of different T-shaped long stringer reinforcement thicknesses.

[0089] In view of the need to improve the quality stability and detection efficiency of ultrasonic detection of T-shaped reinforced structures, as well as the high detection cost, the utility model designs an ultrasonic detection device for T-shaped reinforced structures, which can replace the handheld probe to realize ultrasonic detection of T-shaped reinforcements, improve detection efficiency, and ensure the stability of detection quality. At the same time, the device can also be applied to T-shaped reinforcements of different thicknesses and heights, and has strong applicability.

[0090] Although several embodiments of the present invention have been given herein, those skilled in the art should understand that the embodiments of the present invention may be modified without departing from the spirit of the present invention. The above embodiments are merely exemplary and should not be used as a limitation on the scope of the present invention.

Claims

1. An ultrasonic detection device for a T-shaped reinforced structure, characterized in that: The device comprises an ultrasonic probe, a probe wedge, a fixture, an encoder, and a water pipe; The clamp comprises a first part and a second part, the first part and the second part are spliced ​​and connected with each other; a through first space is arranged in the middle of the clamp for accommodating the T-shaped reinforcement structure; The probe wedge is used to fix the ultrasonic probe and provide elastic force for the ultrasonic probe, so that the ultrasonic probe is elastically attached to the part to be detected of the T-shaped reinforced structure; The ultrasonic probe is installed in the probe wedge, and the probe wedge is installed in the internal space formed by the first part and the second part of the clamp, and the probe wedge can move up and down along the clamp; The encoder is arranged outside the fixture, and the encoder is connected to the ultrasonic probe through a line; The water pipe is arranged on the upper part of the clamp and is used to provide coupling agent for ultrasonic testing.

2. The ultrasonic detection device for T-shaped reinforced structure according to claim 1, characterized in that: The upper ends of the first and second parts of the clamp are both provided with convex grooves and concave grooves, the convex groove of the first part corresponds to the concave groove of the second part, the concave groove of the first part corresponds to the convex groove of the second part, and the first part and the second part are spliced ​​and clamped into a whole through the convex grooves and the concave grooves.

3. The ultrasonic detection device for T-shaped reinforced structure according to claim 1, characterized in that: The clamp also includes a clamp extension seat, which is arranged between the first part and the second part. The two ends of the clamp extension seat are respectively engaged with the first part and the second part, so that the first part, the clamp extension seat and the second part are connected as a whole, which is used to adjust the scale of the first space to adapt to T-shaped reinforced structures of different thicknesses.

4. The ultrasonic detection device for T-shaped reinforced structure according to claim 1, characterized in that: The ultrasonic probe comprises an A-scan probe and a phased array probe, and the probe wedge comprises an A-scan wedge and a phased array wedge; the A-scan probe is installed in the A-scan wedge, and the phased array probe is installed in the phased array wedge.

5. The ultrasonic detection device for T-shaped reinforced structure according to claim 4, characterized in that: The A-scan probe head is provided with an A-scan probe delay block, and the tail is connected to an A-scan probe cable; The A-sweep wedge block comprises an A-sweep wedge block body, an A-sweep wedge block baffle, and an A-sweep wedge block rubber block; the A-sweep wedge block body is in a cube or rectangular shape, and has a first end and a second end opposite to each other, the first end is provided with an A-sweep probe delay block hole, and the second end is provided with an A-sweep probe groove; the top of the A-sweep wedge block body is provided with an opening; The A-scan probe delay block extends from the hole of the A-scan probe delay block, and the A-scan probe cable extends from the opening on the top of the A-scan wedge body; the A-scan wedge rubber block is installed from the A-scan probe groove and fixed by the A-scan wedge baffle to provide elastic force for the extension of the A-scan probe delay block.

6. The ultrasonic detection device for T-shaped reinforced structure according to claim 4, characterized in that: The phased array wedge is in the shape of a rectangular parallelepiped as a whole, and includes a hollow groove, a phased array wedge fixing pin hole, a phased array wedge fixing pin, and a phased array wedge rubber block; the phased array probe is installed in the hollow groove; a phased array wedge rubber block is arranged between the back side of the phased array probe and the wall of the hollow groove to provide elastic force for the extension of the phased array probe; the phased array wedge fixing pin is inserted into the phased array wedge fixing pin hole to fix the phased array probe in the up and down directions.

7. The ultrasonic detection device for T-shaped reinforced structure according to claim 5 or 6, characterized in that: The connection method of the A-scan wedge, the phased array wedge and the fixture is: The first part and the second part of the clamp are both provided with scaled bar holes in the up and down directions, and the A-scan wedge and the phased array wedge are both provided with wedge fixing studs corresponding to the scaled bar holes; the wedge fixing studs extend out from the scaled bar holes, and according to the detection height requirements, the wedge fixing studs are fixed at the set height position of the scaled bar holes by nuts.

8. The ultrasonic detection device for T-shaped reinforced structure according to claim 1, characterized in that: The first part and the second part of the clamp are both provided with tooling connection studs on the outer sides.

9. The ultrasonic detection device for T-shaped reinforced structure according to claim 1, characterized in that: A layer of anti-wear sheet is pasted on the bottom of the clamp, and the anti-wear sheet is made of elastic rubber material.

10. The ultrasonic detection device for T-shaped reinforced structure according to claim 1, characterized in that: The material of the clamp is plastic, and the material of the probe wedge is cross-linked polystyrene.

Images