WO2016143934A1 - Ultrasonic inspection probe fixing device - Google Patents

Ultrasonic inspection probe fixing device Download PDF

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Publication number
WO2016143934A1
WO2016143934A1 PCT/KR2015/003007 KR2015003007W WO2016143934A1 WO 2016143934 A1 WO2016143934 A1 WO 2016143934A1 KR 2015003007 W KR2015003007 W KR 2015003007W WO 2016143934 A1 WO2016143934 A1 WO 2016143934A1
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WO
WIPO (PCT)
Prior art keywords
fixed
piece
probe
fixing device
compression spring
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PCT/KR2015/003007
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French (fr)
Korean (ko)
Inventor
백광세
김기복
Original Assignee
(주)엘라켐
한국표준과학연구원
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Publication of WO2016143934A1 publication Critical patent/WO2016143934A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/223—Supports, positioning or alignment in fixed situation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects

Definitions

  • the present invention relates to a probe fixing device for ultrasound, more specifically, to fix the spring and the electric magnet to the articulated frame, the ultrasonic probe for improved coupling (coupling) to the flexible probe and the test surface It relates to a fixing device.
  • the ultrasonic flaw inspection has to maintain a certain interval between the transducers for the inspected object, and the precision of the inspection results varies according to the degree of minimization of the shaking of the transducer during the flaw detection.
  • the above document is provided across a frame consisting of a pair of base frames having a plurality of wheels and a pair of posts erected upwardly from the ends of each base frame, and between each post of the frame, It is provided, and is composed of first and second holding plates that are individually installed to be height-adjustable on the upper and lower sides of the frame.
  • the above-mentioned document can be used to be firmly fixed to the inspected object, but it is practically difficult to use on curved or non-planar parts that are vulnerable to stress or fatigue or difficult to access by inspectors in pipes or structures such as nuclear power plants and chemical plants.
  • the outer surface of the pipe having a variety of shapes and sizes, such as curved surface, non-planar portion is not in close contact there is a structural problem of poor coupling (coupling) of the inspection surface.
  • the present invention is to solve the above-described problems, ultrasonic probe for vulnerable to stress or fatigue of pipes or structures of nuclear power plants, chemical plants, etc. difficult to access the inspector, firmly fixed to the non-planar portion It is an object to provide a fixing device.
  • an object of the present invention is to provide a probe fixing device for ultrasonic inspection which is simple to manufacture and easy to install and dismantle.
  • a fixed frame which is disposed on the surface of the inspected object across the upper space of the transducer performing the ultrasonic test and detachably fixed to the inspected object; It is disposed between the fixing frame of the probe provides a probe fixing device for ultrasonic inspection comprising a compression spring for pressing and fixing the transducer.
  • Ultrasonic probe fixing device according to an embodiment of the present invention, the production is simple, there is an effect that is easy to install and dismantle.
  • FIG. 1 is a view schematically showing an example of the use of the ultrasonic transducer fixing device according to an embodiment of the present invention.
  • Figure 2 is an installation example of the ultrasonic transducer fixing device according to an embodiment of the present invention.
  • Figure 3 is an exploded view showing the coupling of the fixed joint piece and the connecting joint piece of the probe fixing device for ultrasound test according to an embodiment of the present invention.
  • Figure 4 is an exploded view of the connecting joint piece coupled to the fixing piece of the probe fixing device for ultrasound test according to an embodiment of the present invention.
  • Figure 5 is an operating state of the probe fixing device for ultrasonic testing according to an embodiment of the present invention.
  • FIG. 1 is a view schematically showing an example of the use of the ultrasonic probe fixing device according to an embodiment of the present invention
  • Figure 2 is an installation example of the ultrasonic probe fixing device according to an embodiment of the present invention
  • Figure 3 is 4 is an exploded view showing the coupling of the fixed joint piece and the connecting joint piece of the ultrasonic probe fixing device according to an embodiment of the present invention
  • Figure 4 is coupled to the fixing piece of the ultrasonic probe fixing device according to an embodiment of the present invention
  • 5 is an exploded view of the connecting joint piece
  • Figure 5 is an operating state diagram of the probe fixing device for ultrasound examination in accordance with an embodiment of the present invention.
  • the ultrasonic transducer fixing device 100 according to an embodiment of the present invention comprises a fixing frame 10 and the compression spring (20).
  • the ultrasonic probe fixing device 100 of the present invention is mainly fixed to the inspection object (1) of the pipe (1a) formed with curved and non-planar portions as shown in Figures 2 and 5 as well as the general inspection object. Used.
  • the fixed frame 10 is disposed on the surface of the inspected object 1 and is detachably fixed to the inspected object 1 while crossing the upper space of the probe 2 performing the ultrasonic inspection.
  • the part of the fixed frame 10 fixed to the surface of the inspected object 1 consists of a magnet body 30 which is one selected from a permanent magnet and an electromagnet, and the inspected object 1 made of a material having a property of being attached to a magnet. It is easily fixed without applying stress or fatigue. If the inspected object 1 is not fixed by magnetic force, various materials such as an adsorption plate (not shown) using a vacuum state of air may be grafted to suitably correspond to the characteristics of the inspected object 1.
  • the fixed frame 10 is provided with a multi-joint frame 10a composed of a plurality of joint pieces 12 coupled to each other in a relative motion.
  • the articulated frame 10a includes two or more fixed articulation pieces 121 and two or more fixed articulation pieces 121 of which the lower end 121a is detachably fixed to the surface of the inspection object 1 spaced from the probe 2. Pin-coupled or ball-coupled to the upper end to cross the upper portion of the transducer (2), and comprises a connecting joint piece 122, the compression spring 20 is fixed.
  • Connection articulation 122 is composed of a spring mounting joint unit (122a), the fixing piece (122b).
  • the spring mounting joint units 122a are separated from each other and coupled to two or more connecting joint pieces 122, and each spring mounting joint unit 122a is disposed between the fixing frames 10 of the transducers 2.
  • the compression spring 20 for pressing and fixing the transducer 2 is fixed.
  • the spring mounting joint unit 122a includes a contact piece 1221, a moving shaft 1222, a mounting piece 1223, a connecting piece 1224, and a moving nut 1225.
  • the contact piece 1221 is in contact with the surface of the transducer 2 and the bottom of the compression spring 20 is fixed.
  • the moving shaft 1222 extends above the contact piece 1221, a thread 1222a is formed at an upper end thereof, and the compression spring 20 is extrapolated.
  • the mounting piece 1223 is slidably inserted into the moving shaft 1222, and the upper end of the compression spring 20 is fixed. That is, the mounting piece 1223 is attached to the thread 1222a formed at the upper end of the moving shaft 1222 so that the upper end of the compression spring 20 extrapolated to the moving shaft 1222 is fixed to the lower end of the contact piece 1221. It is coupled to the sliding movement.
  • connection piece 1224 extends to both sides of the mounting piece 1223 and is connected to any one selected from the fixed joint piece 121 and the spring mounting joint unit 122a. That is, the connecting piece 1224 is coupled to the one end and the other end in the longitudinal direction of the mounting piece 1223, respectively, one end is connected to the fixed articulation piece 121 and the other end is connected to the spring mounting joint unit 122a. do.
  • the moving nut 1225 is inserted into the upper end of the moving shaft 1222 protruding upward from the mounting piece 1223, and moves along the thread 1222a to adjust the vertical position of the mounting piece 1223 in the compression spring 20. The elastic force of the will be adjusted.
  • the fixing piece 122b is fixed at both ends of the coupling portion between the spring mounting joint unit 122a and the transducer 2 so that the coupling portion between the spring mounting joint unit 122a is constrained at the set point. That is, the fixing piece 122b is a coupling portion where the spring mounting joint unit 122a coupled to any one connecting piece 1224 and the spring mounting joint unit 122a coupled to the other connecting piece 1224 respectively meet. One end is coupled to the other end is coupled to the top of the transducer (2).
  • the fixing piece 122b is configured to restrain the spring mounting joint unit 122a so that the articulated frame 10a composed of a plurality of joint pieces 12 coupled to each other so as to be relatively movable on the surface of the test object 1 is stable. To be fixed.
  • one end of the fixing piece 122b is connected by a ball coupling or a hinge coupling to allow free movement of the spring mounting joint unit 122a, and the other end is preferably screwed so as to be easily connected to the probe 2. It is also possible to use the magnet body 30, the suction plate (not shown), and the like described above.
  • the angle adjustment fixing lever 40 restrains the coupling portion of the fixing joint piece 121 and the connecting joint piece 122 so that the fixing joint piece 121 in which the lower end 121a is fixed to the surface of the inspection object 1 is stable. To be fixed. That is, the magnet body 30 fixed to the inspected object 1 is prevented from being separated by the flow of the fixed joint piece 121.
  • the ultrasonic probe fixing device is vulnerable to stress or fatigue in pipes or structures of nuclear power plants, chemical plants, etc., or it is possible to securely fix the curved, non-planar parts that are difficult to access by the inspector. There is.
  • Ultrasonic probe fixing device 100 is disposed on the surface of the inspected object (1) is fixed across the upper space of the transducer (2) performing the ultrasonic test and detachably fixed to the inspected object (1) And a compression spring 20 disposed between the frame 10 and the fixed frame 10 of the transducer 2 to pressurize and fix the transducer 2, wherein the inspected object is made of a material having a property of being attached to a magnet.
  • the fixed frame portion fixed to the surface of the test object includes a magnet body selected from permanent magnets and electromagnets.
  • the fixed frame is a multi-joint frame consisting of a plurality of joint pieces are coupled to each other in a relative motion.
  • the articulated frame includes two or more fixed articulation pieces having a lower end detachably fixed to a surface of the test object spaced from the probe, and an upper portion of the probe being pinned or ball-coupled to an upper end of the two or more fixed articulation pieces. And a connecting joint piece to which the compression spring is fixed.
  • the connecting joint pieces are two or more spring-loaded joint units that are separated and coupled to each other, the coupling portion between the spring-mounted joint unit and the both ends are fixed to the transducer so that the coupling portion between the spring-mounted joint unit is constrained at a set point It includes a fixing piece to be fixed, the compression spring is fixed to each spring-mounted joint unit.
  • the upper end of the fixed articulation piece and the connecting articulation piece are pin-coupled by an angle adjusting lever formed of a fixing bolt and a moving nut, and the fixing bolt has a head for a handle that is operated by a worker by turning.
  • the spring-mounted joint unit is in contact with the surface of the transducer, the contact piece is fixed to the lower end of the compression spring, and formed to extend above the contact piece, the upper end is formed with a screw thread, the compression spring and the moving shaft is extrapolated
  • a connecting piece inserted into the movable shaft to be slidably movable, the mounting piece having the upper end of the compression spring fixed thereto, and extending to both sides of the mounting piece connected to any one selected from the fixed joint piece and the spring mounting joint unit; And a moving nut inserted into the upper end of the moving shaft protruding upward of the mounting piece, and adjusting the elastic force of the compression spring by adjusting the vertical position of the mounting piece while moving along the screw thread.
  • the probe fixing device for ultrasonic inspection can be used by being firmly fixed to a curved or non-planar portion that is vulnerable to stress or fatigue or difficult to access by an inspector in a pipe or structure such as a nuclear power plant or a chemical plant.

Abstract

The present invention relates to an ultrasonic inspection probe fixing device, and according to the present invention, the fixing device comprises: a fixing frame which is disposed on the surface of an object being inspected, traverses the upper space of a probe performing an ultrasonic inspection, and is detachably fixed to the object being inspected; and a compression spring which is disposed between the probe and the fixing frame and presses and fixes the probe.

Description

초음파검사용 탐촉자 고정장치Ultrasonic transducer fixing device
본 발명은 초음파검사용 탐촉자 고정장치에 관한 것으로, 보다 구체적으로 설명하면, 다관절프레임에 스프링과 전기자석을 고정시켜, 유연 탐촉자와 검사표면에 커플링(coupling)성이 개선된 초음파검사용 탐촉자 고정장치에 관한 것이다.The present invention relates to a probe fixing device for ultrasound, more specifically, to fix the spring and the electric magnet to the articulated frame, the ultrasonic probe for improved coupling (coupling) to the flexible probe and the test surface It relates to a fixing device.
일반적으로, 초음파 탐상검사는 피검사물에 대해 탐촉자가 일정 간격을 유지해야 하고, 탐상 도중 탐촉자의 흔들림을 최소화하는 정도에 따라 검사결과의 정밀도가 달라진다.In general, the ultrasonic flaw inspection has to maintain a certain interval between the transducers for the inspected object, and the precision of the inspection results varies according to the degree of minimization of the shaking of the transducer during the flaw detection.
초음파 탐상검사를 위한 장비의 고정시 사용되는 장치의 일예가, 대한민국 공개특허 제10-2007-0038594호 "초음파 검사용 부품 홀딩장치"에 개시되어 있다.An example of an apparatus used for fixing equipment for ultrasonic flaw detection is disclosed in Korean Patent Application Laid-Open No. 10-2007-0038594 "Ultrasonic Inspection Component Holding Device".
상기의 문헌은 복수의 바퀴를 구비한 한 쌍의 베이스 프레임 및 각 베이스 프레임의 단부에서 상부로 직립된 한 쌍의 포스트로 이루어진 프레임과, 프레임의 각 포스트 사이를 가로질러 설치되고, 복수의 클램프를 구비하며, 프레임의 상하부 측에 높이 조절 가능하게 개별적으로 설치된 제1 및 제2 홀딩판으로 구성된다.The above document is provided across a frame consisting of a pair of base frames having a plurality of wheels and a pair of posts erected upwardly from the ends of each base frame, and between each post of the frame, It is provided, and is composed of first and second holding plates that are individually installed to be height-adjustable on the upper and lower sides of the frame.
따라서, 제1 및 제2 홀딩판의 높이를 개별적으로 조절할 수 있을 뿐만 아니라 각 홀딩판의 양단부의 높이 또한 개별적으로 조절할 수 있어 다양한 크기와 외형을 가진 부품들에 대해 적절히 대응할 수 있다.Therefore, not only the heights of the first and second holding plates can be adjusted individually, but also the heights of both ends of each holding plate can be adjusted individually, so that the parts having various sizes and shapes can be appropriately coped with.
하지만 전술된 문헌은 피검사물에 견고히 고정하여 사용할 수 있으나, 원자력 발전소, 화학플랜트 등의 배관 또는 구조물 중 응력이나 피로에 취약하거나 검사자의 접근이 어려운 곡면, 비평면부에는 실질적으로 사용이 어렵다.However, the above-mentioned document can be used to be firmly fixed to the inspected object, but it is practically difficult to use on curved or non-planar parts that are vulnerable to stress or fatigue or difficult to access by inspectors in pipes or structures such as nuclear power plants and chemical plants.
또한, 장치를 이루는 구성요소가 비교적 많아 제작단가가 상승되고, 설치 및 해체가 어려운 단점이 있다.In addition, there are a number of components that make up the device is relatively expensive manufacturing costs, installation and disassembly is difficult.
또한, 곡면, 비평면부 등의 다양한 형태와 크기를 갖는 배관 외면에는 밀착이 양호하지 않아 검사표면의 커플링(coupling)성이 떨어지는 구조적인 문제점이 있다.In addition, the outer surface of the pipe having a variety of shapes and sizes, such as curved surface, non-planar portion is not in close contact there is a structural problem of poor coupling (coupling) of the inspection surface.
따라서, 본 발명은 전술한 문제점을 해결하고자 하는 것으로, 원자력 발전소, 화학플랜트 등의 배관 또는 구조물 중 응력이나 피로에 취약하거나 검사자의 접근이 어려운 곡면, 비평면부에 견고히 고정시켜 사용가능한 초음파검사용 탐촉자 고정장치를 제공하는 것을 목적으로 한다.Accordingly, the present invention is to solve the above-described problems, ultrasonic probe for vulnerable to stress or fatigue of pipes or structures of nuclear power plants, chemical plants, etc. difficult to access the inspector, firmly fixed to the non-planar portion It is an object to provide a fixing device.
또한, 제작이 간단하고, 설치 및 해체가 용이한 초음파검사용 탐촉자 고정장치를 제공하는 것을 목적으로 한다.In addition, an object of the present invention is to provide a probe fixing device for ultrasonic inspection which is simple to manufacture and easy to install and dismantle.
또한, 다관절 프레임에 스프링과 전기자석을 고정시켜, 유연 탐촉자와 곡면, 비평면부 등의 다양한 형태와 크기를 갖는 검사표면의 커플링(coupling)성이 개선되는 초음파검사용 탐촉자 고정장치를 제공하는 것을 목적으로 한다.In addition, by fixing the spring and the electric magnet to the articulated frame, to provide a probe fixing device for the ultrasonic inspection to improve the coupling (coupling) of the test surface having a variety of shapes and sizes, such as flexible transducer and curved surface, non-planar portion For the purpose of
상기 및 기타 본 발명의 목적을 달성하기 위하여, 본 발명의 실시예에 따르면, 피검사물 표면에 배치되어 초음파 검사를 수행하는 탐촉자의 상측 공간을 가로지르며 상기 피검사물에 착탈가능하게 고정되는 고정프레임과, 상기 탐촉자의 고정프레임 사이에 배치되어 상기 탐촉자를 가압 고정시키는 압축스프링을 포함하는 것을 특징으로 하는 초음파검사용 탐촉자 고정장치를 제공한다.In order to achieve the above and other objects of the present invention, according to an embodiment of the present invention, a fixed frame which is disposed on the surface of the inspected object across the upper space of the transducer performing the ultrasonic test and detachably fixed to the inspected object; It is disposed between the fixing frame of the probe provides a probe fixing device for ultrasonic inspection comprising a compression spring for pressing and fixing the transducer.
본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치는, 제작이 간단하고, 설치 및 해체가 용이한 효과가 있다.Ultrasonic probe fixing device according to an embodiment of the present invention, the production is simple, there is an effect that is easy to install and dismantle.
또한, 다관절 프레임에 스프링과 전기자석을 고정시켜, 유연 탐촉자와 곡면, 비평면부 등의 다양한 형태와 크기를 갖는 검사표면의 커플링(coupling)성이 개선되는 효과가 있다.In addition, by fixing the spring and the electric magnet to the articulated frame, there is an effect of improving the coupling (coupling) of the inspection surface having a variety of shapes and sizes, such as flexible probe and curved surface, non-planar portion.
도 1은 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 사용예를 개략적으로 표현한 도면.1 is a view schematically showing an example of the use of the ultrasonic transducer fixing device according to an embodiment of the present invention.
도 2는 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 설치예.Figure 2 is an installation example of the ultrasonic transducer fixing device according to an embodiment of the present invention.
도 3은 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 고정 관절편과 연결 관절편의 결합을 보여주는 분해도.Figure 3 is an exploded view showing the coupling of the fixed joint piece and the connecting joint piece of the probe fixing device for ultrasound test according to an embodiment of the present invention.
도 4는 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 고정편에 결합된 연결 관절편의 분해도.Figure 4 is an exploded view of the connecting joint piece coupled to the fixing piece of the probe fixing device for ultrasound test according to an embodiment of the present invention.
도 5는 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 작동상태도.Figure 5 is an operating state of the probe fixing device for ultrasonic testing according to an embodiment of the present invention.
이하, 본 발명의 바람직한 실시예를 첨부도면을 참조하여 보다 상세히 설명하기로 한다. 이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.
또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 하여 내려져야 할 것이다.In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.
도 1은 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 사용예를 개략적으로 표현한 도면, 도 2는 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 설치예, 도 3은 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 고정 관절편과 연결 관절편의 결합을 보여주는 분해도, 도 4는 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 고정편에 결합된 연결 관절편의 분해도, 도 5는 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치의 작동상태도이다.1 is a view schematically showing an example of the use of the ultrasonic probe fixing device according to an embodiment of the present invention, Figure 2 is an installation example of the ultrasonic probe fixing device according to an embodiment of the present invention, Figure 3 is 4 is an exploded view showing the coupling of the fixed joint piece and the connecting joint piece of the ultrasonic probe fixing device according to an embodiment of the present invention, Figure 4 is coupled to the fixing piece of the ultrasonic probe fixing device according to an embodiment of the present invention 5 is an exploded view of the connecting joint piece, Figure 5 is an operating state diagram of the probe fixing device for ultrasound examination in accordance with an embodiment of the present invention.
도 1 내지 도 5를 참조하면, 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치(100)는 고정프레임(10)과 압축스프링(20)을 포함하여 이루어진다.1 to 5, the ultrasonic transducer fixing device 100 according to an embodiment of the present invention comprises a fixing frame 10 and the compression spring (20).
여기서, 본 발명의 초음파검사용 탐촉자 고정장치(100)는 일반적인 피검사물 뿐만 아니라 도 2 및 도 5에 도시된 바와 같이 곡면 및 비평면부가 형성된 파이프(1a)의 피검사물(1)에 주로 고정시켜 사용된다.Here, the ultrasonic probe fixing device 100 of the present invention is mainly fixed to the inspection object (1) of the pipe (1a) formed with curved and non-planar portions as shown in Figures 2 and 5 as well as the general inspection object. Used.
고정프레임(10)은 피검사물(1) 표면에 배치되어 초음파 검사를 수행하는 탐촉자(2)의 상측 공간을 가로지르며 피검사물(1)에 착탈가능하게 고정된다. 여기서, 피검사물(1)의 표면에 고정되는 고정프레임(10) 부위는 영구자석과 전자석 중에서 선택된 어느 하나인 자석체(30)로 이루어져 자석에 붙는 성질을 가진 소재로 이루어진 피검사물(1)에 응력이나 피로를 가하지 않고 용이하게 고정된다. 만약, 자력으로 고정되지 않는 피검사물(1)일 경우 공기의 진공상태를 이용하는 흡착판(미도시) 등의 다양한 재료를 접목시켜 피검사물(1)의 특성에 맞춰 적절히 대응하는 것도 가능하다.The fixed frame 10 is disposed on the surface of the inspected object 1 and is detachably fixed to the inspected object 1 while crossing the upper space of the probe 2 performing the ultrasonic inspection. Here, the part of the fixed frame 10 fixed to the surface of the inspected object 1 consists of a magnet body 30 which is one selected from a permanent magnet and an electromagnet, and the inspected object 1 made of a material having a property of being attached to a magnet. It is easily fixed without applying stress or fatigue. If the inspected object 1 is not fixed by magnetic force, various materials such as an adsorption plate (not shown) using a vacuum state of air may be grafted to suitably correspond to the characteristics of the inspected object 1.
고정프레임(10)은 서로 상대운동 가능하게 결합되는 복수개의 관절편(12)으로 이루어진 다관절 프레임(10a)으로 마련된다.The fixed frame 10 is provided with a multi-joint frame 10a composed of a plurality of joint pieces 12 coupled to each other in a relative motion.
다관절 프레임(10a)은 탐촉자(2)로부터 이격된 피검사물(1) 표면에 하부단(121a)이 착탈가능하게 고정되는 둘 이상의 고정 관절편(121)과 둘 이상의 고정 관절편(121)의 상부단에 핀결합 또는 볼결합되어 탐촉자(2)의 상측 부위를 가로지르게 되고, 압축스프링(20)이 고정되는 연결 관절편(122)을 포함하여 이루어진다.The articulated frame 10a includes two or more fixed articulation pieces 121 and two or more fixed articulation pieces 121 of which the lower end 121a is detachably fixed to the surface of the inspection object 1 spaced from the probe 2. Pin-coupled or ball-coupled to the upper end to cross the upper portion of the transducer (2), and comprises a connecting joint piece 122, the compression spring 20 is fixed.
연결 관절편(122)은 스프링장착용 관절유닛(122a), 고정편(122b)으로 이루어진다. Connection articulation 122 is composed of a spring mounting joint unit (122a), the fixing piece (122b).
스프링장착용 관절유닛(122a)은 서로 분리되어 연결 관절편(122)에 둘 이상으로 결합되는 것으로서, 각 스프링장착용 관절유닛(122a)에는 탐촉자(2)의 고정프레임(10) 사이에 배치되어 탐촉자(2)를 가압 고정시키는 압축스프링(20)이 고정된다.The spring mounting joint units 122a are separated from each other and coupled to two or more connecting joint pieces 122, and each spring mounting joint unit 122a is disposed between the fixing frames 10 of the transducers 2. The compression spring 20 for pressing and fixing the transducer 2 is fixed.
스프링장착용 관절유닛(122a)은 도 4에 도시된 바와같이 접촉편(1221), 이동축(1222), 장착편(1223), 연결편(1224) 및, 이동너트(1225)로 이루어진다.As shown in FIG. 4, the spring mounting joint unit 122a includes a contact piece 1221, a moving shaft 1222, a mounting piece 1223, a connecting piece 1224, and a moving nut 1225.
접촉편(1221)은 탐촉자(2) 표면에 접촉되고 압축스프링(20) 하단이 고정된다.The contact piece 1221 is in contact with the surface of the transducer 2 and the bottom of the compression spring 20 is fixed.
이동축(1222)은 접촉편(1221) 상측으로 연장형성되고, 상단부에 나사산(1222a)이 형성되며, 압축스프링(20)이 외삽된다.The moving shaft 1222 extends above the contact piece 1221, a thread 1222a is formed at an upper end thereof, and the compression spring 20 is extrapolated.
장착편(1223)은 이동축(1222)에 슬라이딩 이동가능하게 삽입되고, 압축스프링(20) 상단이 고정된다. 즉, 장착편(1223)은 접촉편(1221)의 하단에 고정되도록 이동축(1222)에 외삽된 압축스프링(20)의 상단이 고정되도록 이동축(1222)의 상단에 형성된 나사산(1222a)에 슬라이딩 이동가능하게 결합된다.The mounting piece 1223 is slidably inserted into the moving shaft 1222, and the upper end of the compression spring 20 is fixed. That is, the mounting piece 1223 is attached to the thread 1222a formed at the upper end of the moving shaft 1222 so that the upper end of the compression spring 20 extrapolated to the moving shaft 1222 is fixed to the lower end of the contact piece 1221. It is coupled to the sliding movement.
연결편(1224)은 장착편(1223)의 양측으로 연장형성되어 고정 관절편(121)과 스프링장착용 관절유닛(122a) 중에서 선택된 어느 하나와 연결된다. 즉, 연결편(1224)은 장착편(1223)의 길이방향 일단과 타단에 각각 결합되어 하나의 단부가 고정 관절편(121)에 연결되고 다른 하나의 단부가 스프링장착용 관절유닛(122a)에 연결된다.The connection piece 1224 extends to both sides of the mounting piece 1223 and is connected to any one selected from the fixed joint piece 121 and the spring mounting joint unit 122a. That is, the connecting piece 1224 is coupled to the one end and the other end in the longitudinal direction of the mounting piece 1223, respectively, one end is connected to the fixed articulation piece 121 and the other end is connected to the spring mounting joint unit 122a. do.
이동너트(1225)는 장착편(1223) 상측으로 돌출된 이동축(1222) 상단부로 삽입되고, 나사산(1222a)을 따라 이동하면서 장착편(1223)의 상하방향 위치를 조절하여 압축스프링(20)의 탄성력을 조절하게 된다.The moving nut 1225 is inserted into the upper end of the moving shaft 1222 protruding upward from the mounting piece 1223, and moves along the thread 1222a to adjust the vertical position of the mounting piece 1223 in the compression spring 20. The elastic force of the will be adjusted.
고정편(122b)은 스프링장착용 관절유닛(122a) 간 결합부위와 탐촉자(2)에 양단부가 고정되어 스프링장착용 관절유닛(122a) 간 결합부위가 설정지점에 구속되도록 한다. 즉, 고정편(122b)은 어느 하나의 연결편(1224)에 결합된 스프링장착용 관절유닛(122a)과 다른 하나의 연결편(1224)에 결합된 스프링장착용 관절유닛(122a)이 각각 만나는 결합부위에 일단이 결합되고 탐촉자(2)의 상부에 타단이 결합된다. 이 고정편(122b)은 스프링장착용 관절유닛(122a)을 구속함으로써 서로 상대운동 가능하게 결합되는 복수개의 관절편(12)으로 이루어진 다관절 프레임(10a)이 피검사물(1) 표면에 안정적으로 고정되게 한다. 여기서, 고정편(122b)의 일단은 스프링장착용 관절유닛(122a)의 자유로운 운동이 가능하도록 볼결합 또는 힌지결합 등으로 연결되고, 타단은 탐촉자(2)에 연결이 용이하도록 나사결합이 바람직하나 전술된 자석체(30) 및 흡착판(미도시) 등이 사용되는 것도 가능하다.The fixing piece 122b is fixed at both ends of the coupling portion between the spring mounting joint unit 122a and the transducer 2 so that the coupling portion between the spring mounting joint unit 122a is constrained at the set point. That is, the fixing piece 122b is a coupling portion where the spring mounting joint unit 122a coupled to any one connecting piece 1224 and the spring mounting joint unit 122a coupled to the other connecting piece 1224 respectively meet. One end is coupled to the other end is coupled to the top of the transducer (2). The fixing piece 122b is configured to restrain the spring mounting joint unit 122a so that the articulated frame 10a composed of a plurality of joint pieces 12 coupled to each other so as to be relatively movable on the surface of the test object 1 is stable. To be fixed. Here, one end of the fixing piece 122b is connected by a ball coupling or a hinge coupling to allow free movement of the spring mounting joint unit 122a, and the other end is preferably screwed so as to be easily connected to the probe 2. It is also possible to use the magnet body 30, the suction plate (not shown), and the like described above.
한편, 도 3을 참조하면, 고정 관절편(121)의 상부단(121b)과 연결 관절편(122)은 작업자가 돌림동작으로 조작하게 되는 핸들용 헤드(411)를 갖는 고정볼트(41)와 이동너트(1225)로 이루어진 각도조절 고정레버(40)에 의해 핀결합된다.On the other hand, referring to Figure 3, the upper end 121b and the connection articulation 122 of the fixed articulation piece 121 and the fixing bolt 41 having a head 411 for the handle that the operator is operating in a turning operation and It is pin-coupled by the angle control fixing lever 40 made of a moving nut (1225).
각도조절 고정레버(40)는 고정 관절편(121)과 연결 관절편(122)의 결합부위를 구속하여 피검사물(1) 표면에 하부단(121a)이 고정된 고정 관절편(121)이 안정적으로 고정될 수 있도록 한다. 즉, 고정 관절편(121)의 유동으로 피검사물(1)에 고정된 자석체(30)가 이탈되는 것을 방지한다.The angle adjustment fixing lever 40 restrains the coupling portion of the fixing joint piece 121 and the connecting joint piece 122 so that the fixing joint piece 121 in which the lower end 121a is fixed to the surface of the inspection object 1 is stable. To be fixed. That is, the magnet body 30 fixed to the inspected object 1 is prevented from being separated by the flow of the fixed joint piece 121.
따라서, 본 발명의 일실시예에 따른 초음파검사용 탐촉자 고정장치는 원자력 발전소, 화학플랜트 등의 배관 또는 구조물 중 응력이나 피로에 취약하거나 검사자의 접근이 어려운 곡면, 비평면부에 견고히 고정시켜 사용가능한 효과가 있다.Therefore, the ultrasonic probe fixing device according to an embodiment of the present invention is vulnerable to stress or fatigue in pipes or structures of nuclear power plants, chemical plants, etc., or it is possible to securely fix the curved, non-planar parts that are difficult to access by the inspector. There is.
또한, 제작이 간단하고, 설치 및 해체가 용이한 효과가 있다.In addition, the production is simple, there is an effect that easy installation and disassembly.
또한, 다관절 프레임에 스프링과 전기자석을 고정시켜, 유연 탐촉자와 곡면, 비평면부 등의 다양한 형태와 크기를 갖는 검사표면의 커플링(coupling)성이 개선되는 효과가 있다.In addition, by fixing the spring and the electric magnet to the articulated frame, there is an effect of improving the coupling (coupling) of the inspection surface having a variety of shapes and sizes, such as flexible probe and curved surface, non-planar portion.
이상 본 발명의 바람직한 실시예를 첨부도면을 참조하여 설명하였지만, 당해 기술 분야에 숙련된 사람은 하기의 특허청구범위에 기재된 본 발명의 기술적 사상으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경할 수 있음을 이해할 것이다.Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art may variously modify and change the present invention without departing from the spirit of the invention as set forth in the claims below. I will understand.
본 발명에 따른 초음파검사용 탐촉자 고정장치(100)는 피검사물(1) 표면에 배치되어 초음파 검사를 수행하는 탐촉자(2)의 상측 공간을 가로지르며 피검사물(1)에 착탈가능하게 고정되는 고정프레임(10)과, 탐촉자(2)의 고정프레임(10) 사이에 배치되어 탐촉자(2)를 가압 고정시키는 압축스프링(20)을 구비하는데, 피검사물은 자석에 붙는 성질을 가진 소재로 이루어지고, 상기 피검사물 표면에 고정되는 고정프레임 부위는 영구자석과 전자석 중에서 선택된 어느 하나인 자석체를 포함한다.Ultrasonic probe fixing device 100 according to the present invention is disposed on the surface of the inspected object (1) is fixed across the upper space of the transducer (2) performing the ultrasonic test and detachably fixed to the inspected object (1) And a compression spring 20 disposed between the frame 10 and the fixed frame 10 of the transducer 2 to pressurize and fix the transducer 2, wherein the inspected object is made of a material having a property of being attached to a magnet. The fixed frame portion fixed to the surface of the test object includes a magnet body selected from permanent magnets and electromagnets.
상기 고정프레임은 서로 상대운동 가능하게 결합되는 복수개의 관절편으로 이루어진 다관절 프레임이다.The fixed frame is a multi-joint frame consisting of a plurality of joint pieces are coupled to each other in a relative motion.
상기 다관절 프레임은 상기 탐촉자로부터 이격된 상기 피검사물 표면에 하부단이 착탈가능하게 고정되는 둘 이상의 고정 관절편과, 상기 둘 이상의 고정 관절편의 상부단에 핀결합 또는 볼결합되어 상기 탐촉자의 상측 부위를 가로지르게 되고, 상기 압축스프링이 고정되는 연결 관절편을 포함한다.The articulated frame includes two or more fixed articulation pieces having a lower end detachably fixed to a surface of the test object spaced from the probe, and an upper portion of the probe being pinned or ball-coupled to an upper end of the two or more fixed articulation pieces. And a connecting joint piece to which the compression spring is fixed.
상기 연결 관절편은 서로 분리되어 결합되는 둘 이상의 스프링장착용 관절유닛과, 상기 스프링장착용 관절유닛 간 결합부위와 상기 탐촉자에 양단부가 고정되어 상기 스프링장착용 관절유닛 간 결합부위가 설정지점에 구속되도록 하는 고정편을 포함하고, 각 스프링장착용 관절유닛에 압축스프링이 고정된다.The connecting joint pieces are two or more spring-loaded joint units that are separated and coupled to each other, the coupling portion between the spring-mounted joint unit and the both ends are fixed to the transducer so that the coupling portion between the spring-mounted joint unit is constrained at a set point It includes a fixing piece to be fixed, the compression spring is fixed to each spring-mounted joint unit.
상기 고정 관절편의 상부단과 연결 관절편은 고정볼트와 이동너트로 이루어진 각도조절 고정레버에 의해 핀결합되되, 상기 고정볼트는 작업자가 돌림동작으로 조작하게 되는 핸들용 헤드를 갖는다.The upper end of the fixed articulation piece and the connecting articulation piece are pin-coupled by an angle adjusting lever formed of a fixing bolt and a moving nut, and the fixing bolt has a head for a handle that is operated by a worker by turning.
상기 스프링장착용 관절유닛은 상기 탐촉자 표면에 접촉되고, 상기 압축스프링 하단이 고정되는 접촉편과, 상기 접촉편 상측으로 연장형성되고, 상단부에 나사산이 형성되며, 상기 압축스프링이 외삽되는 이동축과, 상기 이동축에 슬라이딩 이동가능하게 삽입되고, 상기 압축스프링 상단이 고정되는 장착편과, 상기 장착편의 양측으로 연장형성되어 상기 고정 관절편과 상기 스프링장착용 관절유닛 중에서 선택된 어느 하나와 연결되는 연결편 및, 상기 장착편 상측으로 돌출된 이동축 상단부로 삽입되고, 상기 나사산을 따라 이동하면서 상기 장착편의 상하방향 위치를 조절하여 상기 압축스프링의 탄성력을 조절하게 되는 이동너트를 포함한다.The spring-mounted joint unit is in contact with the surface of the transducer, the contact piece is fixed to the lower end of the compression spring, and formed to extend above the contact piece, the upper end is formed with a screw thread, the compression spring and the moving shaft is extrapolated A connecting piece inserted into the movable shaft to be slidably movable, the mounting piece having the upper end of the compression spring fixed thereto, and extending to both sides of the mounting piece connected to any one selected from the fixed joint piece and the spring mounting joint unit; And a moving nut inserted into the upper end of the moving shaft protruding upward of the mounting piece, and adjusting the elastic force of the compression spring by adjusting the vertical position of the mounting piece while moving along the screw thread.
본 발명에 따른 초음파검사용 탐촉자 고정장치는 원자력 발전소, 화학플랜트 등의 배관 또는 구조물 중 응력이나 피로에 취약하거나 검사자의 접근이 어려운 곡면, 비평면부에 견고히 고정시켜 사용할 수 있다.The probe fixing device for ultrasonic inspection according to the present invention can be used by being firmly fixed to a curved or non-planar portion that is vulnerable to stress or fatigue or difficult to access by an inspector in a pipe or structure such as a nuclear power plant or a chemical plant.

Claims (7)

  1. 피검사물(1) 표면에 배치되어 초음파 검사를 수행하는 탐촉자(2)의 상측 공간을 가로지르며 상기 피검사물(1)에 착탈가능하게 고정되는 고정프레임(10)과;A fixed frame 10 disposed on a surface of the inspected object 1 and transversing an upper space of the probe 2 for performing an ultrasonic test and detachably fixed to the inspected object 1;
    상기 탐촉자(2)의 고정프레임(10) 사이에 배치되어 상기 탐촉자(2)를 가압 고정시키는 압축스프링(20)을 포함하는 것을 특징으로 하는 초음파검사용 탐촉자 고정장치.Ultrasonic probe holding device characterized in that it comprises a compression spring (20) disposed between the fixed frame (10) of the probe (2) to pressurize the transducer (2).
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 피검사물(1)은 자석에 붙는 성질을 가진 소재로 이루어지고,The test object 1 is made of a material having a property of attaching to a magnet,
    상기 피검사물(1) 표면에 고정되는 고정프레임(10) 부위는 영구자석과 전자석 중에서 선택된 어느 하나인 자석체(30)를 포함하는 것을 특징으로 하는 초음파검사용 탐촉자 고정장치.The fixed frame 10 is fixed to the surface of the inspected object (1), the probe fixing device for ultrasonic inspection, characterized in that it comprises a magnet body 30 which is any one selected from a permanent magnet and an electromagnet.
  3. 청구항 1에 있어서,The method according to claim 1,
    상기 고정프레임(10)은 서로 상대운동 가능하게 결합되는 복수개의 관절편(12)으로 이루어진 다관절 프레임(12a)인 것을 특징으로 하는 초음파검사용 탐촉자 고정장치.The fixing frame (10) is a probe fixing device for an ultrasonic test, characterized in that the articulated frame (12a) consisting of a plurality of joint pieces 12 are coupled to each other relative movement.
  4. 청구항 3에 있어서,The method according to claim 3,
    상기 다관절 프레임(12a)은 상기 탐촉자(2)로부터 이격된 상기 피검사물(1) 표면에 하부단(121a)이 착탈가능하게 고정되는 둘 이상의 고정 관절편(121)과;The articulated frame (12a) includes two or more fixed articulation pieces (121) to which the lower end (121a) is detachably fixed to the surface of the test object (1) spaced from the probe (2);
    상기 둘 이상의 고정 관절편(121)의 상부단(121b)에 핀결합 또는 볼결합되어 상기 탐촉자(2)의 상측 부위를 가로지르게 되고, 상기 압축스프링(20)이 고정되는 연결 관절편(122)을 포함하는 것을 특징으로 하는 초음파검사용 탐촉자 고정장치.The connection joint piece 122 in which the pin coupling or ball coupling to the upper end (121b) of the two or more fixed joint pieces 121 to cross the upper portion of the transducer (2), the compression spring 20 is fixed Ultrasonic probe fixing device comprising a.
  5. 청구항 4에 있어서,The method according to claim 4,
    상기 연결 관절편(122)은 서로 분리되어 결합되는 둘 이상의 스프링장착용 관절유닛(122a)과;The connection joint pieces 122 are two or more spring mounting joint units (122a) are separated from each other and coupled;
    상기 스프링장착용 관절유닛(122a) 간 결합부위와 상기 탐촉자(2)에 양단부가 고정되어 상기 스프링장착용 관절유닛(122a) 간 결합부위가 설정지점에 구속되도록 하는 고정편(122b)을 포함하고,Both end portions are fixed to the coupling portion between the spring mounting joint unit 122a and the transducer 2 to include a fixing piece 122b for coupling the coupling portion between the spring mounting joint unit 122a to a set point. ,
    각 스프링장착용 관절유닛(122a)에 압축스프링(20)이 고정되는 것을 특징으로 하는 초음파검사용 탐촉자 고정장치.Ultrasonic probe fixing device, characterized in that the compression spring 20 is fixed to each spring mounting joint unit (122a).
  6. 청구항 4에 있어서,The method according to claim 4,
    상기 고정 관절편(121)의 상부단(121b)과 연결 관절편(122)은 고정볼트(41)와 이동너트(1225)로 이루어진 각도조절 고정레버(40)에 의해 핀결합되되,The upper end 121b of the fixed articulation piece 121 and the connection articulation piece 122 are pin-coupled by an angle adjustment fixing lever 40 consisting of a fixing bolt 41 and a moving nut 1225,
    상기 고정볼트(41)는 작업자가 돌림동작으로 조작하게 되는 핸들용 헤드(411)를 갖는 것을 특징으로 하는 초음파검사용 탐촉자 고정장치.The fixing bolt 41 has a transducer head fixing apparatus for the ultrasonic inspection, characterized in that the operator has a head for the handle (411) to be operated in a turning operation.
  7. 청구항 5에 있어서,The method according to claim 5,
    상기 스프링장착용 관절유닛(122a)은 상기 탐촉자(2) 표면에 접촉되고, 상기 압축스프링(20) 하단이 고정되는 접촉편(1221)과;The spring mounting joint unit (122a) is in contact with the surface of the transducer (2), the contact piece 1221 is fixed to the lower end of the compression spring (20);
    상기 접촉편(1221) 상측으로 연장형성되고, 상단부에 나사산(1222a)이 형성되며, 상기 압축스프링(20)이 외삽되는 이동축(1222)과;A moving shaft 1222 extending upwardly from the contact piece 1221, having a thread 1222a formed at an upper end thereof, and the compression spring 20 being extrapolated;
    상기 이동축(1222)에 슬라이딩 이동가능하게 삽입되고, 상기 압축스프링(20) 상단이 고정되는 장착편(1223)과;A mounting piece 1223 inserted into the movable shaft 1222 so as to be slidably movable and having an upper end of the compression spring 20 fixed thereto;
    상기 장착편(1223)의 양측으로 연장형성되어 상기 고정 관절편(121)과 상기 스프링장착용 관절유닛(122a) 중에서 선택된 어느 하나와 연결되는 연결편(1224) 및;A connection piece 1224 extending to both sides of the mounting piece 1223 and connected to any one selected from the fixed joint piece 121 and the spring mounting joint unit 122a;
    상기 장착편(1223) 상측으로 돌출된 이동축(1222) 상단부로 삽입되고, 상기 나사산(1222a)을 따라 이동하면서 상기 장착편(1223)의 상하방향 위치를 조절하여 상기 압축스프링(20)의 탄성력을 조절하게 되는 이동너트(1225)를 포함하는 것을 특징으로 하는 초음파검사용 탐촉자 고정장치.The elastic force of the compression spring 20 is inserted into the upper end of the movable shaft 1222 protruding upward from the mounting piece 1223, and is adjusted along the screw thread 1222a to adjust the vertical position of the mounting piece 1223. Ultrasonic probe fixing device comprising a moving nut 1225 to adjust the.
PCT/KR2015/003007 2015-03-12 2015-03-26 Ultrasonic inspection probe fixing device WO2016143934A1 (en)

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