CN102590351B - Ultrasonic transducer clamp for detecting concave R region of composite material structure - Google Patents

Ultrasonic transducer clamp for detecting concave R region of composite material structure Download PDF

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Publication number
CN102590351B
CN102590351B CN 201210014648 CN201210014648A CN102590351B CN 102590351 B CN102590351 B CN 102590351B CN 201210014648 CN201210014648 CN 201210014648 CN 201210014648 A CN201210014648 A CN 201210014648A CN 102590351 B CN102590351 B CN 102590351B
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guide holder
ultrasonic transducer
parallel
jointing
bodies
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CN102590351A (en
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刘松平
刘菲菲
白金鹏
曹正华
李乐刚
孟秋杰
史俊伟
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AVIC Beijing Aeronautical Manufacturing Technology Research Institute
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AVIC Beijing Aeronautical Manufacturing Technology Research Institute
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Abstract

The invention belongs to a nondestructive detection technology for a composite material structure, and relates to an ultrasonic transducer clamp for detecting a concave R region of a composite material. The ultrasonic transducer clamp is characterized by consisting of a transducer mounting guide holder (3), a connecting joint (4) and a coupled water pipe (5). Through the ultrasonic transducer clamp for detecting the concave R region of the composite material structure, a transducer and the surface of the concave R region of the detected composite material can form stable position coupling in the whole axial direction and arc direction, so that stable ultrasonic detection signals are formed, the detection effect is improved, and missing detection or error judgment is avoided.

Description

Ultrasonic transducer clamp for detection of concave R region of composite material structure
Technical field
The invention belongs to the composite structure Dynamic Non-Destruction Measurement, relate to a kind of ultrasonic transducer clamp for detection of concave R region of composite material structure.
Background technology
Along with the widespread use at industrial circles such as Aeronautics and Astronautics, civil aviaton, traffic, building, electric power such as compound substance, many engineering structures, labyrinth based on the structural designs such as compound substance and structure manufacture constantly are applied on engineering, due to structural design or carrying consideration, zone of transition or connecting portion at this class formation can form various how much indent Zone Rs, inaccessible zone while being Non-Destructive Testing.These indent Zone Rs play very important structure connection and load distribution and load effect in the structures such as compound substance, and on engineering, requirement must be carried out Non-Destructive Testing to concave R region of composite material structure.During detection, must make incident acoustic wave can effectively propagate into Zone R, can make again incident acoustic wave form enough sensitivity reflections and signal characteristic clearly or clearly simultaneously around the defect that may exist.For this reason, the ultrasonic oblique incidence reflectometry of main employing detects, by selecting the incident angle of incident acoustic wave, make incident acoustic wave propagate into Zone R from non-Zone R position, the defect orientation that makes as far as possible the sound wave incident direction may exist with Zone R is vertical, to obtain best detection signal, carry out differentiation and the detection of defect.At present, take manual contact method scanning detection as main.By testing staff's hand-held ultrasound transducer, on the one hand, make transducer select rational pivot angle along detected concave R region of composite material structure circular arc, radially obtain optimized incidence to make incident acoustic wave as far as possible at the indent Zone R; On the other hand, by testing staff's handheld transducer, make it, along the detected axial scanning of compound substance indent Zone R, to realize the axial Ultrasonic Detection of compound substance indent Zone R.Because attitude and the position of transducer are controlled by the hand-held suspension of operating personnel fully, be difficult to guarantee between transducer and detected compound substance indent Zone R surface can whole axially and on the circular arc direction the stable position of formation be coupled, thereby be difficult to guarantee that transducer forms stable ultrasound detection signal in detected compound substance indent Zone R, have a strong impact on the detection effect, easily cause undetected and erroneous judgement.
Summary of the invention
The objective of the invention is: a kind of ultrasonic transducer clamp for detection of concave R region of composite material structure is provided, so that guarantee between ultrasonic transducer and detected compound substance indent Zone R surface can whole axially and on the circular arc direction the stable position of formation be coupled, and then assurance forms stable ultrasound detection signal, improve and detect effect, avoid undetected and erroneous judgement.
Technical scheme of the present invention is: for detection of the ultrasonic transducer clamp of compound substance indent Zone R, it forms by guide holder 3, jointing 4 and coupling water pipe 5 are installed, it is characterized in that, the contour shape that guide holder 3 is installed is 8 bodies, these 8 bodies have the front bevel 3a that area is less and are parallel to front bevel 3a's, the back bevel 3b that area is larger, these 8 bodies have two areas identical with shape, profile is hexagonal, the side 3c be parallel to each other, front bevel 3a and back bevel 3b are perpendicular to two side 3c that guide holder 3 is installed, the upper surface 3d of these 8 bodies is parallel to lower surface 3e, upper surface 3d and lower surface 3e are perpendicular to side 3c, the left surface 3f of these 8 bodies is parallel to right surperficial 3g, left surface 3f and right surperficial 3g are perpendicular to side 3c, when detecting, a side laminating of left surface 3f and the detected compound substance indent Zone R of guide holder 3 is installed, another side laminating of lower surface 3e and the detected compound substance indent Zone R of guide holder 3 is installed, and the front bevel 3a that guide holder 3 is installed is relative with detected compound substance indent Zone R, the elongated slot 3h that a perforation left surface 3f and lower surface 3e are arranged is being installed on guide holder 3, and bottom land is parallel with back bevel 3b, and two cell walls of elongated slot 3h form two trapezoidal guide plates that are parallel to each other, a mounting hole 3i with the ultrasonic transducer 2 of the vertical perforation of back bevel 3b is arranged at the bottom land center of elongated slot 3h, the internal thread coordinated with the external thread of ultrasonic transducer 2 is arranged in mounting hole 3i, the upper surface threaded hole that has a bottom land with elongated slot 3h to connect is being installed on the upper surface 3d of guide holder 3, and the external thread of jointing 4 stiff ends is screwed in the upper surface threaded hole, and the link of this jointing 4 is connected with the water pipe 5 that is coupled, the right thread surface hole that has a bottom land with elongated slot 3h to connect is being installed on the right surperficial 3g of guide holder 3, and the external thread of another jointing 4 stiff ends is screwed in right thread surface hole, and the link of this jointing 4 is connected with the water pipe 5 that is coupled.
Advantage of the present invention is: a kind of ultrasonic transducer clamp for detection of concave R region of composite material structure is provided, can guarantee between ultrasonic transducer and detected compound substance indent Zone R surface can whole axially and form stable position on the circular arc direction and be coupled, and then guaranteed to form stable ultrasound detection signal, improve the detection effect, avoided undetected and erroneous judgement.
The accompanying drawing explanation
Fig. 1 is axle side structure schematic diagram of the present invention.
Fig. 2 is the cut-open view of Fig. 1, the axis of this section by transducer 2 perpendicular to the front bevel 3a that guide holder 3 is installed, and be parallel to the side 3c that guide holder 3 is installed.
Fig. 3 is the axle side structure schematic diagram of the installation guide holder 3 in the present invention.
Embodiment
Below the present invention is described in further details.Referring to Fig. 1 to Fig. 3, for detection of the ultrasonic transducer clamp of compound substance indent Zone R, it forms by guide holder 3, jointing 4 and coupling water pipe 5 are installed, it is characterized in that, the contour shape that guide holder 3 is installed is 8 bodies, these 8 bodies have the front bevel 3a that area is less and are parallel to front bevel 3a's, the back bevel 3b that area is larger, these 8 bodies have two areas identical with shape, profile is hexagonal, the side 3c be parallel to each other, front bevel 3a and back bevel 3b are perpendicular to two side 3c that guide holder 3 is installed, the upper surface 3d of these 8 bodies is parallel to lower surface 3e, upper surface 3d and lower surface 3e are perpendicular to side 3c, the left surface 3f of these 8 bodies is parallel to right surperficial 3g, left surface 3f and right surperficial 3g are perpendicular to side 3c, when detecting, a side laminating of left surface 3f and the detected compound substance indent Zone R of guide holder 3 is installed, another side laminating of lower surface 3e and the detected compound substance indent Zone R of guide holder 3 is installed, and the front bevel 3a that guide holder 3 is installed is relative with detected compound substance indent Zone R, the elongated slot 3h that a perforation left surface 3f and lower surface 3e are arranged is being installed on guide holder 3, and bottom land is parallel with back bevel 3b, and two cell walls of elongated slot 3h form two trapezoidal guide plates that are parallel to each other, a mounting hole 3i with the ultrasonic transducer 2 of the vertical perforation of back bevel 3b is arranged at the bottom land center of elongated slot 3h, the internal thread coordinated with the external thread of ultrasonic transducer 2 is arranged in mounting hole 3i, the upper surface threaded hole that has a bottom land with elongated slot 3h to connect is being installed on the upper surface 3d of guide holder 3, and the external thread of jointing 4 stiff ends is screwed in the upper surface threaded hole, and the link of this jointing 4 is connected with the water pipe 5 that is coupled, the right thread surface hole that has a bottom land with elongated slot 3h to connect is being installed on the right surperficial 3g of guide holder 3, and the external thread of another jointing 4 stiff ends is screwed in right thread surface hole, and the link of this jointing 4 is connected with the water pipe 5 that is coupled.
Using method of the present invention is:
At first, according to the detected composite structure 1 formed angle in the adjacent two sides of indent Zone R, select the ultrasonic transducer be complementary with it that guide holder 3 is installed, to guarantee when detecting, a side laminating of left surface 3f and the detected compound substance indent Zone R of guide holder 3 is installed, another side laminating of lower surface 3e and the detected compound substance indent Zone R of guide holder 3 is installed.The method detected is:
(1) ultrasonic transducer 2 is installed to by its external thread in the mounting hole 3i installed in guide holder 3, rotary ultrasonic transducer 2, make coupling head and the detected compound substance indent Zone R Surface Contact of ultrasonic transducer 2;
(2) the signaling interface end of ultrasonic transducer 2 is connected with the corresponding port of compound material ultrasound detecting instrument by the high-frequency signal line, the FCC that the compound material ultrasound instrument can select Beijing Aviation manufacturing engineering research institute to produce or the instrument of MUT series;
(3) connect compound substance detecting instrument power supply, and corresponding running parameter is set;
(4) will be detected compound substance indent Zone R surface water brush and wet, or connect water source by coupling water pipe 5, moisture film coupling water will be provided;
(5) rotate ultrasonic transducer 2, until normal detection signal indication appears at compound substance detecting instrument screen, till not affecting again the level and smooth movement of ultrasonic transducer 2;
(6) move axially installation guide holder 3 along detected compound substance indent Zone R and carry out scanning.
Embodiment
The detected composite structure 1 formed angle in the adjacent two sides of indent Zone R is 90 °, selects following ultrasonic transducer that guide holder 3 is installed, and the left surface 3f that guide holder 3 is installed is 90 ° with the angle of the lower surface 3e that guide holder 3 is installed.The instrument of the FCC-B that compound material ultrasound instrument selection Beijing Aviation manufacturing engineering research institute produces.Carry out serial practical engineering application through a plurality of batches that long 3000mm~5000mm, wide 1000mm~3000mm are not waited and the practice of composite structure indent Zone R of specification, obtained good actual detection effect.

Claims (1)

1. for detection of the ultrasonic transducer clamp of compound substance indent Zone R, it forms by guide holder [3], jointing [4] and coupling water pipe [5] are installed, it is characterized in that, the contour shape that guide holder [3] is installed is 8 bodies, these 8 bodies have a front bevel [3a] that area is less and are parallel to front bevel [3a], the back bevel that area is larger [3b], these 8 bodies have two areas identical with shape, profile is hexagonal, the side be parallel to each other [3c], front bevel [3a] and back bevel [3b] are perpendicular to two sides [3c] that guide holder [3] is installed, the upper surface of these 8 bodies [3d] is parallel to lower surface [3e], upper surface [3d] and lower surface [3e] are perpendicular to side [3c], the left surface of these 8 bodies [3f] is parallel to right surface [3g], left surface [3f] and right surface [3g] are perpendicular to side [3c], when detecting, the left surface [3f] of guide holder [3] and a side laminating of detected compound substance indent Zone R are installed, another side laminating of lower surface [3e] with the detected compound substance indent Zone R of guide holder [3] is installed, and the front bevel [3a] that guide holder [3] is installed is relative with detected compound substance indent Zone R, the elongated slot [3h] that a perforation left surface [3f] and lower surface [3e] are arranged is being installed on guide holder [3], and bottom land is parallel with back bevel [3b], and two cell walls of elongated slot [3h] form two trapezoidal guide plates that are parallel to each other, a mounting hole [3i] with the ultrasonic transducer [2] of the vertical perforation of back bevel [3b] is arranged at the bottom land center of elongated slot [3h], the internal thread coordinated with the external thread of ultrasonic transducer [2] is arranged in mounting hole [3i], the upper surface threaded hole that has a bottom land with elongated slot [3h] to connect on the upper surface [3d] that guide holder [3] is installed, the external thread of a jointing [4] stiff end is screwed in the upper surface threaded hole, and the link of this jointing [4] is connected with the water pipe [5] that is coupled, a right thread surface hole with the bottom land perforation of elongated slot [3h] is arranged on the right surface [3g] that guide holder [3] is installed, the external thread of another jointing [4] stiff end is screwed in right thread surface hole, and the link of this jointing [4] is connected with coupling water pipe [5].
CN 201210014648 2012-01-18 2012-01-18 Ultrasonic transducer clamp for detecting concave R region of composite material structure Active CN102590351B (en)

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CN102768240B (en) * 2012-07-06 2014-07-09 中国航空工业集团公司北京航空制造工程研究所 Ultrasonic scanning device and method for detecting R region of inner cavity of composite material structure
CN106932479A (en) * 2015-12-30 2017-07-07 核动力运行研究所 A kind of small entrance vertical vessel inwall ultrasonic inspection apparatus of nuclear power station
CN107144632B (en) * 2016-03-01 2020-01-03 中国科学院金属研究所 Nondestructive testing method for defects of R-angle area of curved surface component
CN106501377B (en) * 2016-09-12 2019-06-04 中国航空工业集团公司北京航空材料研究院 A method of R corner structure flaw size is detected using ultrasonic phase array
CN106680377B (en) * 2016-12-22 2019-08-20 中航复合材料有限责任公司 A kind of supersonic array transducer for the detection of composite structure rib area
CN107014900B (en) * 2017-03-31 2019-07-26 中国商用飞机有限责任公司北京民用飞机技术研究中心 A kind of ultrasonic phase array detection device for composite material Zone R
CN110907537A (en) * 2019-12-11 2020-03-24 江苏新扬新材料股份有限公司 A-scanning nondestructive testing method for R area of composite culvert casing and tool medium
CN112051331A (en) * 2020-09-14 2020-12-08 哈尔滨全感科技有限公司 Ultrasonic guided wave transducer support capable of moving along axial direction of cylinder, support device and cylinder detection method

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