Ultrasonic infrared radar thermal wave imaging detection system for reused spacecraft metal load-bearing structure

Abstract

The utility model provides an ultrasonic infrared radar thermal wave imaging detection system for a metal load-bearing structure of a reused spacecraft, and particularly belongs to the technical field of nondestructive testing. Through the design of the flexible contact clamp of the ultrasonic probe and the detected piece, the fault tolerance rate of the ultrasonic detection process is improved, multi-frequency ultrasonic waves are excited through the ultrasonic generator, defect information is collected through the infrared camera, multi-frequency ultrasonic infrared radar thermal wave imaging detection under the single working condition can be achieved, and the detection accuracy is improved. The nondestructive testing efficiency and the visualization degree are improved, meanwhile, the defect information is recognized more comprehensively, and the ultrasonic testing accuracy is improved. The device comprises a substrate, an ultrasonic generator and an infrared camera, and further comprises a positioning and clamping assembly, an ultrasonic excitation assembly and an infrared detection assembly, an infrared camera is arranged in the middle of the top face of the substrate, one side of the infrared camera is connected with an infrared detection assembly, an ultrasonic generator is arranged on one side of the top face of the substrate, and one side of the ultrasonic generator is connected with an ultrasonic excitation assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to reuse spacecraft metal force bearing structure ultrasonic infrared radar heat wave imaging detection system, belong to nondestructive testing technical field specifically. BACKGROUND

[0002] Infrared nondestructive testing technology refers to the principle that when a substance is subjected to thermal excitation, it will emit infrared light outward, and when there is a defect in the material, it has different infrared characteristics relative to the defect-free state, detects whether there is a defect or non-uniformity in the object under the premise of not damaging or affecting the use performance of the detected object, and gives information such as defect size, position, nature and quantity;

[0003] At present, there are various means to heat the measured object, such as photoelectric heating, eddy current heating, laser heating, ultrasonic heating, etc.; ultrasonic heating is to use ultrasonic transducers and other energy conversion elements with high energy conversion efficiency for heating, and the kinetic energy of vibration is converted into heat energy during the heating process, which has the advantages of high reliability, stable thermal excitation, high safety factor, etc.;

[0004] The detection equipment using ultrasonic as the heating means has been widely used in material defect detection work in various industries, but the single ultrasonic frequency is not adjustable during the working process, which affects the accuracy of the detection results and makes it difficult to reflect the overall information of the defect, and in order to ensure the detection effect, the ultrasonic vibration is prevented from damaging the test piece, so a flexible clamping structure is needed to realize the fixation and contact of the detection equipment and the detected piece. UTILITY MODEL CONTENT

[0005] The utility model aims at providing reuse spacecraft metal force bearing structure ultrasonic infrared radar heat wave imaging detection system, to solve the problem of flexible fixation of ultrasonic excitation module of detection equipment and adjustable ultrasonic excitation frequency.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of: the novel includes base plate, ultrasonic generator and infrared camera, characterized in that it further includes positioning and clamping assembly, ultrasonic excitation assembly and infrared detection assembly; the infrared camera is arranged at the middle position of the top surface of the base plate, the infrared detection assembly is connected to one side of the infrared camera, the ultrasonic generator is arranged at one side position of the top surface of the base plate, the ultrasonic excitation assembly is connected to one side of the ultrasonic generator, and the positioning and clamping assembly, the ultrasonic excitation assembly and the infrared detection assembly are all arranged on the top surface of the base plate.

[0007] Further, by designing the flexible contact clamp of the ultrasonic probe and the inspected part, the fault tolerance of the ultrasonic detection process is improved, the linear frequency modulation radar modulation technology is adopted to excite multiple frequency ultrasonic waves, the infrared thermal imager is used to collect defect information, the multiple frequency ultrasonic infrared radar thermal wave imaging detection under single working condition can be realized, the efficiency and visualization degree of nondestructive testing are improved, a large number of repeated operations are avoided, the identification of defect information is more comprehensive, and the accuracy of ultrasonic detection is improved.

[0008] The positioning and clamping assembly comprises a small-end support seat, a large-end support seat, a large-end positioning block, a linear bearing seat, a positioning V-shaped block, a joint, a cylinder body, a positioning screw, a second push rod support seat and a push rod; the small-end support seat is fixedly arranged on the top surface of the base plate, the linear bearing seat is fixedly arranged on one side of the small-end support seat, the second push rod support seat is fixedly arranged on the inner side of the linear bearing seat, the large-end support seat is fixedly arranged on the other side of the small-end support seat, the large-end positioning block is arranged above the large-end support seat, the joint is connected to one side of the positioning V-shaped block, the push rod is connected to one side of the joint, and the second push rod support seat is connected to one end of the push rod and fixedly installed through the positioning screw.

[0009] Further, the cylinder body and the positioning V-shaped block jointly act on the clamping driven by the cylinder. The linear bearing seat, the positioning screw, the second push rod support seat and the push rod serve as the connecting and transferring parts of the cylinder body and the positioning V-shaped block, and have the functions of fixing, connecting and transferring force;

[0010] The large-end positioning block and the positioning V-shaped block jointly act on the positioning and clamping, realize the centering positioning, and realize the clamping of the measured part under the premise of ensuring the coaxiality.

[0011] The ultrasonic excitation part comprises an ultrasonic generator, a third connecting plate, a fourth connecting plate, a generator fixing seat, a fifth connecting plate and a pneumatic push rod; three groups of ultrasonic generators are arranged on the top surface of the base plate, the generator fixing seat is fixedly installed on one side of the ultrasonic generator, the generator fixing seat is fixedly installed on the top surface of the base plate, the three groups of ultrasonic generators are connected to the ultrasonic excitation head through the generator fixing seat, the pneumatic push rod is connected to one end of the ultrasonic generator, double sliding rails are arranged on the base plate corresponding to the ultrasonic generator and the pneumatic push rod, the third connecting plate is arranged on one side of the ultrasonic generator, the fourth connecting plate is arranged on the outer side of the pneumatic push rod, the fifth connecting plate is arranged on the outer side of the ultrasonic generator, and the third connecting plate, the fourth connecting plate and the fifth connecting plate are fixedly arranged on the top surface of the base plate.

[0012] Further, the three ultrasonic generators are connected to the ultrasonic excitation head through the generator fixing seat, and the ultrasonic generator and the pneumatic push rod can move through the double sliding rails on the lower base plate.

[0013] At the beginning of detection, 1-3 specific ultrasonic excitation heads can be selectively controlled to advance along the slide rail until stopping at the surface of the object to be detected; at the end of detection, the excitation heads can also be controlled to move away from the connecting rod along the rail; the ultrasonic generator and the pneumatic push rod are connected with the base plate through the generator fixing seat.

[0014] The infrared detection part comprises a rhombic ball head, a first connecting plate, a second connecting plate, a square ball head, a ball head connecting body, an infrared camera and a frame; the top surface of the base plate is provided with the infrared camera, one end of the infrared camera is connected with the rhombic ball head, one side of the rhombic ball head is connected with the ball head connecting body, one side of the ball head connecting body is connected with the square ball head, one side of the square ball head is connected with the frame, one side of the frame is connected with the first connecting plate, the first connecting plate is fixedly arranged on the top surface of the base plate, one side of the ball head connecting body is connected with the second connecting plate, and the second connecting plate is fixedly arranged on the top surface of the base plate.

[0015] The infrared detection part further comprises a first push rod support seat; the other side of the frame is fixedly connected with the ultrasonic generator, one end of the ultrasonic generator is connected with the pneumatic push rod, the outer side of the pneumatic push rod is provided with the first push rod support seat, and the first push rod support seat is fixedly arranged on the top surface of the base plate.

[0016] Further, the infrared camera is connected with the frame through the rhombic ball head and the square ball head, and in actual detection, the position of the infrared camera can be adjusted by manually adjusting the ball head.

[0017] The utility model discloses the beneficial effect is:

[0018] 1. Through the design of the ultrasonic probe and the flexible contact clamp of the detected piece, the fault tolerance of the ultrasonic detection process is improved.

[0019] 2. Through the excitation of multiple frequency ultrasonic waves by the ultrasonic generator, the defect information is collected by the infrared camera, the multiple frequency ultrasonic infrared radar thermal wave imaging detection under single working condition can be realized, not only the efficiency and the visualization degree of nondestructive testing are improved, a large number of repeated operations are avoided, but also the identification of defect information is more comprehensive, and the precision of ultrasonic detection is improved. DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the overhead and side structure schematic diagram of the small end support seat of the utility model;

[0022] Figure 3 It is the overhead and side structure schematic diagram of the big end support seat of the utility model;

[0023] Figure 4 It is the overhead and side structure schematic diagram of the big end positioning block of the utility model;

[0024] Figure 5 This is a top and side view structural diagram of the positioning V-block of this utility model;

[0025] Figure 6 These are top and side view structural diagrams of the linear bearing housing of this utility model;

[0026] Figure 7 This is a schematic diagram of the second push rod support seat of this utility model from both a bottom view and a side view.

[0027] Figure 8 This is a top and side view schematic diagram of the ultrasonic generator mounting base of this utility model;

[0028] Figure 9 This is a schematic diagram of the first push rod support seat of this utility model from a bottom view and a side view.

[0029] Figure 10 This is a three-dimensional structural diagram of the infrared camera of this utility model;

[0030] Figure 11 This is a schematic diagram of the overall layout of the detection system of this utility model.

[0031] 1. Small end support; 2. Diamond-shaped ball head; 3. First connecting plate; 4. First push rod support; 5. Ultrasonic generator; 6. Second connecting plate; 7. Square ball head; 8. Ball head connector; 9. Third connecting plate; 10. Fourth connecting plate; 11. Generator fixing seat; 12. Large end support; 13. Large end positioning block; 14. Infrared camera; 15. Fifth connecting plate; 16. Pneumatic push rod; 17. Linear bearing seat; 18. Positioning V-block; 19. Connector; 20. Base plate; 21. Cylinder body; 22. Positioning screw; 23. Second push rod support; 24. Push rod; 25. Frame. Detailed Implementation

[0032] The following will be combined with the appendix Figures 1-11 The technical solutions in the embodiments are described clearly and completely.

[0033] Specific implementation method one: as follows Figures 1-7 As shown, the system consists of a positioning and clamping assembly, an ultrasonic excitation assembly, and an infrared detection assembly. The design of the ultrasonic generator 5 and the flexible contact fixture between the ultrasonic generator 5 and the workpiece improves the fault tolerance of the ultrasonic detection process. The infrared camera 14 collects defect information, enabling multi-frequency ultrasonic infrared radar thermal imaging detection under a single working condition. This not only improves the efficiency and visualization of non-destructive testing and avoids a large number of repetitive operations, but also provides a more comprehensive identification of defect information, thus improving the accuracy of ultrasonic detection.

[0034] First, flexible contact with the inspected workpiece is achieved through a positioning and clamping assembly, which includes a small-end support 1, a large-end support 12, a large-end positioning block 13, a linear bearing seat 17, a positioning V-block 18, a connector 19, a cylinder body 21, a positioning screw 22, a second push rod support 23, and a push rod 24.

[0035] The clamping mechanism, driven by the cylinder push of the cylinder body 21 and the positioning V block 18, is achieved through the joint action of the cylinder body 21 and the positioning V block 18. The linear bearing seat 17, the positioning screw 22, the second push rod support seat 23, and the push rod 24 serve as the connecting transition parts between the cylinder body 21 and the positioning V block 18, playing a role in fixing, connecting, and transmitting force. This avoids affecting the accuracy of the test results, makes it easier to reflect comprehensive information, and prevents ultrasonic vibration from damaging the specimen.

[0036] Specific implementation method two: such as Figure 8 As shown, ultrasonic excitation is then performed through the ultrasonic excitation section to obtain more comprehensive defect information. The ultrasonic excitation section includes an ultrasonic generator 5, a third connecting plate 9, a fourth connecting plate 10, a generator mounting base 11, a fifth connecting plate 15, and a pneumatic push rod 16. All three ultrasonic generators 5 are connected to the ultrasonic excitation head through the generator mounting base 11. The ultrasonic generators 5 and the pneumatic push rod 16 can move through the double slide rails on the base plate 20 below, thereby making the identification of defect information more comprehensive and improving the accuracy of ultrasonic detection.

[0037] Specific implementation method three: such as Figures 9-11 As shown, the infrared detection section displays defect information. The infrared detection section includes a rhomboid ball head 2, a first connecting plate 3, a second connecting plate 6, a square ball head 7, a ball head connector 8, an infrared camera 14, and a frame 25, as well as a first push rod support 4. The infrared camera 14 is connected to the frame 25 through the rhomboid ball head 2 and the square ball head 7. In actual testing, the position of the infrared camera 14 can be adjusted by manually adjusting the ball head, thereby realizing multi-frequency ultrasonic infrared radar thermal imaging detection under a single working condition. This not only improves the efficiency and visualization of non-destructive testing but also avoids a large number of repetitive operations.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A system for thermal wave imaging detection of space vehicle metal load-bearing structures using ultrasonic infrared radar, comprising a substrate (20), an ultrasonic generator (5) and an infrared camera (14), characterized in that, Also include positioning clamping assembly, ultrasonic excitation assembly and infrared detection assembly; The infrared camera (14) is arranged at a middle position of a top surface of the base plate (20), one side of the infrared camera (14) is connected with the infrared detection assembly, one side of the top surface of the base plate (20) is provided with the ultrasonic generator (5), one side of the ultrasonic generator (5) is connected with the ultrasonic excitation assembly, and the positioning clamping assembly, the ultrasonic excitation assembly and the infrared detection assembly are all arranged on the top surface of the base plate (20).

2. The system for detection of thermal wave imaging by reusing space vehicle metallic load bearing structure ultrasonic infrared radar of claim 1, wherein, The positioning clamping assembly comprises a small-end support seat (1), a large-end support seat (12), a large-end positioning block (13), a linear bearing seat (17), a positioning V-shaped block (18), a joint (19), a cylinder body (21), a positioning screw (22), a second push rod support seat (23) and a push rod (24); The small-end support seat (1) is fixedly arranged on the top surface of the base plate (20), one side of the small-end support seat (1) is fixedly provided with the linear bearing seat (17), one side of the linear bearing seat (17) is fixedly provided with the second push rod support seat (23), the other side of the small-end support seat (1) is fixedly provided with the large-end support seat (12), the inner side of the linear bearing seat (17) is provided with the positioning V-shaped block (18), the upper side of the large-end support seat (12) is provided with the large-end positioning block (13), one side of the positioning V-shaped block (18) is connected with the joint (19), one side of the joint (19) is connected with the push rod (24), one end of the push rod (24) is connected with the second push rod support seat (23), and the second push rod support seat (23) is fixedly installed through the positioning screw (22).

3. The system for detecting space vehicle metallic load-bearing structure using ultrasonic infrared radar thermography according to claim 1, wherein, The ultrasonic excitation part comprises an ultrasonic generator (5), a third connecting plate (9), a fourth connecting plate (10), a generator fixing seat (11), a fifth connecting plate (15) and a pneumatic push rod (16); The top surface of the base plate (20) is provided with three groups of ultrasonic generators (5), one side of the ultrasonic generator (5) is fixedly installed with the generator fixing seat (11), the generator fixing seat (11) is fixedly installed on the top surface of the base plate (20), the three groups of ultrasonic generators (5) are connected with the ultrasonic excitation head through the generator fixing seat (11), one end of the ultrasonic generator (5) is connected with the pneumatic push rod (16), and double slide rails are formed on the base plate (20) corresponding to the ultrasonic generator (5) and the pneumatic push rod (16), one side of the ultrasonic generator (5) is provided with the third connecting plate (9), the outer side of the pneumatic push rod (16) is provided with the fourth connecting plate (10), the outer side of the ultrasonic generator (5) is provided with the fifth connecting plate (15), and the third connecting plate (9), the fourth connecting plate (10) and the fifth connecting plate (15) are all fixedly arranged on the top surface of the base plate (20).

4. The system for detection of thermal wave imaging using ultrasonic infrared radar of reused space vehicle metallic load bearing structures according to claim 1, wherein, The infrared detection part comprises a diamond-shaped ball head (2), a first connecting plate (3), a second connecting plate (6), a square ball head (7), a ball head connecting body (8), an infrared camera (14) and a frame (25); The top surface of the substrate (20) is provided with an infrared camera (14), one end of the infrared camera (14) is connected with a rhombic ball head (2), one side of the rhombic ball head (2) is connected with a ball head connecting body (8), one side of the ball head connecting body (8) is connected with a square ball head (7), one side of the square ball head (7) is connected with a frame (25), one side of the frame (25) is connected with a first connecting plate (3), the first connecting plate (3) is fixedly arranged on the top surface of the substrate (20), one side of the ball head connecting body (8) is connected with a second connecting plate (6), and the second connecting plate (6) is fixedly arranged on the top surface of the substrate (20).

5. The reused space vehicle metallic load bearing structure ultrasonic infrared radar thermographic imaging inspection system of claim 4, wherein, The infrared detection part further comprises a first push rod support seat (4); The other side of the frame (25) is fixedly connected with an ultrasonic generator (5), one end of the ultrasonic generator (5) is connected with a pneumatic push rod (16), the outer side of the pneumatic push rod (16) is provided with the first push rod support seat (4), and the first push rod support seat (4) is fixedly arranged on the top surface of the substrate (20).

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