CN102706960B - Ultrasonic phased array detection system for transitional circular arc inside cavity - Google Patents
Ultrasonic phased array detection system for transitional circular arc inside cavity Download PDFInfo
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- CN102706960B CN102706960B CN201210181722.2A CN201210181722A CN102706960B CN 102706960 B CN102706960 B CN 102706960B CN 201210181722 A CN201210181722 A CN 201210181722A CN 102706960 B CN102706960 B CN 102706960B
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Abstract
The invention relates to an ultrasonic phased array detection system for a transitional circular arc inside a cavity. The system comprises an ultrasonic phased array detector, a detection probe and a positioning device. The system is characterized in that a probe propelling device consisting of an auxiliary operating frame, a balancing weight, a probe clamping block, a fine steel wire and the like is designed. The ultrasonic phased array detection system for the transitional circular arc inside the cavity provided by the invention has the advantages of: 1, ensuring that the centre of curvature of an arc-shaped wafer of the detection probe is concentric with the circular arc detected so that an ultrasonic wave is vertically incident to corner parts of the circular arc detected so as to realize detection with high sensitivity of all parts of the circular arc; 2, ensuring that the probe operates stably in the cavity structure clings to the side wall of the circular arc detected; 3, ensuring coupling of detection by forming a sealed water cavity between the detection wafer of the probe and the circular arc detected through the detection probe and the front and back clamping blocks; and 4, precisely positioning the movement position of the detection probe through the probe positioning device so as to position the defect horizontal position precisely.
Description
Technical field
The present invention is a kind of for cavity inside transition arc place ultrasonic phase array detection system, belongs to technical field of nondestructive testing.
Background technology
Dynamic Non-Destruction Measurement is a kind of effective means of product being carried out to defects detection and quality control, is widely used in modern industry, especially in the field such as Aero-Space.Along with the development of industrial level, the requirement of Non-Destructive Testing is also improved constantly, not only require each position of product to carry out complete detection, and the positioning and quantitative precision of the judgement of defect property and abnormal signal is had higher requirement.Transition arc position in the inner small space of labyrinth is a kind of more complicated version, while adopting conventional supersonic detection method to detect internal defects, there is following difficulty: 1) transition arc position curvature is little, wide open space is narrow, selection and the mobile space of detection probe are limited, can not guarantee all angles in circular arc position to carry out complete detection, detect blind area large; 2) transition arc surface different parts radian is different, is difficult to guarantee that the incident acoustic beam of single probe is vertical with all arc-shaped surface, affects detection sensitivity; 3) defect in circular arc position may distribute along curved surface, is difficult to provide defect along the accurate dimension of circular arc direction when its size is evaluated.
Ultrasonic phase array detection technique is a kind of Novel ultrasonic detection technique that development in recent years is got up, ultrasonic phase array probe is comprised of a plurality of wafers, by control, launch wafer and the number and the triggering mode that receive wafer, can realize flexibly deflection and the focusing of acoustic beam, control the incident direction of acoustic beam, there is A sweep, B scanning, C scan image Presentation Function.Therefore, adopting ultrasonic phase array detection technique to detect labyrinth inner transition circular arc position, is a kind of advanced person, detection method in the cards.
Summary of the invention
It is a kind of for cavity inside transition arc place ultrasonic phase array detection system that the present invention designs for above-mentioned prior art situation just, its objective is that can carry probe runs to reposefully the position that cavity structure inside, staff cannot touch and carry out detection.
The object of the invention is to be achieved through the following technical solutions:
This kind is for cavity inside transition arc place ultrasonic phase array detection system, this system comprises ultrasonic phased array inspection instrument (1), detection probe (2) and locating device (3), ultrasonic phased array inspection instrument (1) is by cable (5) and locating device (3), detection probe (2) connects, it is characterized in that: detection probe (2) is front, rear front clamp piece (6) for both sides, rear grip block (10) clamps, detection probe (2) and front clamp piece (6), the upper left corner of rear grip block (10) is fixed on orthogonal side connecting plate (7) and upper junction plate (8), front clamp piece (6), the two sides in the lower right corner of rear grip block (10) are parallel with the two sides of cavity inside transition arc to be detected respectively, front clamp piece (6), the lower right corner of rear grip block (10) is a circular arc (9) with cavity inside transition arc same curvature to be detected, on the lateral surface of front clamp piece (6), be processed with the mounting hole for installing cables line (5) and water pipe (11), on the lateral surface of rear grip block (10), be fixedly connected with the balancing weight (4) of a rectangular parallelepiped, two sides central authorities in balancing weight (4) upper left corner of rectangular parallelepiped are processed with along the spring eye in a row (12) of detection probe (2) side of advancing, in spring eye (12), be provided with goring push spring (13), balancing weight (4) be connected probe (2), front clamp piece (6), the side connecting plate (7) of rear grip block (10) is connected with upper cover plate (19) by the orthogonal side cover plate in the upper left corner (18) with upper junction plate (8),
The operation passage of a detection probe (2) is built with " L " type framework (14) in two side along cavity to be detected (17) inner transition circular arc, the two side of " L " type framework (14) is mutually vertical, and the through hole (23) of the goring push spring (13) that is arranged on rectangular parallelepiped balancing weight (4) two sides, upper left corner central authorities from side cover plate (18) and upper cover plate (19) stretches out top and be pressed on the inside surface of " L " type framework (14) two side.
On the clamping face of the front clamp piece (6) of detection probe (2), rear grip block (10), be provided with the arc boss (15) that supports detection probe (2), the curved surface of the cambered surface of this arc boss (15) and detection probe (2) matches.
In the rear end of the balancing weight (4) of rectangular parallelepiped, a wire (16) for pulling detection probe (2) to advance is installed.
The two sides in balancing weight (4) lower right corner are provided with organic glass side slide (21) and the organic glass sliding block (20) of orthogonal wear prevention cavity (17).
Goring push spring (13) is pressed on the inside surface of " L " type framework (14) two side by spring thimble (22) top.
Advantage and beneficial effect that the present invention has are:
1, by the grip block fixed test at probe two ends, pop one's head in, guaranteed that the detection probe arc wafer center of curvature is concentric with detected circular arc, make ultrasound wave be normally incident in each angle position of tested circular arc, realize the high-sensitivity detection of circular arc all sites;
2, this pick-up unit is by the setting of operation frame, balancing weight and goring push spring, and assurance probe is close to detected circular arc sidewall and is moved stably in cavity structure;
3, by detection probe and front and back grip block, at probe, detect between wafer and detected circular arc and form airtight water cavity, guarantee the coupling detecting;
4, by probe locating device, detection probe movement position is accurately located, thereby realize the accurate location to defect level position.
Accompanying drawing explanation
Fig. 1 is ultrasonic phased array inspection instrument, locating device and the probe clamping of detection system of the present invention and the front view of assisting running gear
Fig. 2 is probe clamping and running gear side view in detection system of the present invention
Fig. 3 is probe clamping counter weight device exploded view in detection system of the present invention
Fig. 4 is detection system of the present invention for detection of the relative position schematic diagram of detection probe and clamping device and tested circular arc during 75 ° of transition arcs in cavity structure
Fig. 5 is detection system of the present invention for detection of the relative position schematic diagram of detection probe and clamping device and tested circular arc during 90 ° of transition arcs in cavity structure
Fig. 6 is detection system of the present invention for detection of the relative position schematic diagram of detection probe and clamping device and tested circular arc during 120 ° of transition arcs in cavity structure
Embodiment
Below with reference to drawings and Examples, technical solution of the present invention is further described:
Shown in accompanying drawing, adopt technical solution of the present invention to detect the circular arc position of inner 75 °～120 ° of the compound substance cavity structure of certain material system.
The inner circular of cavity structure shown in Fig. 4 arc angle is 75 °, and cavity inside cross section breadth extreme is 80mm, and maximum height is 60mm, wall thickness 5mm, chamfer radius 5mm; The inner circular of cavity structure shown in Fig. 5 arc angle is 90 °, and cavity inside cross section breadth extreme is 75mm, and maximum height is 65mm, wall thickness 5mm, chamfer radius 5mm; The inner circular of cavity structure shown in Fig. 6 arc angle is 120 °, and cavity inside cross section breadth extreme is 100mm, and maximum height is 70mm, wall thickness 5mm, chamfer radius 5mm.Testing requirement is all to detect the lamination defect that is greater than φ 6mm in product transition arc.
Adopt of the present invention for cavity inside transition arc place ultrasonic phase array detection system, this system comprises ultrasonic phased array inspection instrument 1, detection probe 2 and locating device 3, ultrasonic phased array inspection instrument 1 is by cable 5 and locating device 3, detection probe 2 connects, detection probe 2 shapes are elongated, little along detected arc diameter direction width, long along detected arc axis direction length, the cable of each wafer is arranged along probe length direction, make joint current outlet method for probe side outlet, avoid because of structure inner chamber body space narrow and small, and do not have abundant space to place probe, improve the stability of probe when inside configuration is moved, it is characterized in that: before detection probe 2, front clamp piece 6 for rear both sides, rear grip block 10 clamps, detection probe 2 and front clamp piece 6, the upper left corner of rear grip block 10 is fixed on orthogonal side connecting plate 7 and upper junction plate 8, front clamp piece 6, the two sides in the lower right corner of rear grip block 10 are parallel with the two sides of cavity inside transition arc to be detected respectively, front clamp piece 6, the lower right corner of rear grip block 10 is the circular arcs 9 with cavity inside transition arc same curvature to be detected, front clamp piece 6 in detection probe 2, on the clamping face of rear grip block 10, be provided with the arc boss 15 that supports detection probe 2, the curved surface of the cambered surface of this arc boss 15 and detection probe 2 matches, guarantee that the detection probe 2 arc wafer centers of curvature overlap with the detected circular arc position center of curvature, on the lateral surface of front clamp piece 6, be processed with the mounting hole for installing cables line 5 and water pipe 11, on the lateral surface of rear grip block 10, be fixedly connected with the balancing weight 4 of a rectangular parallelepiped, the two sides in balancing weight 4 lower right corner are provided with organic glass side slide 21 and the organic glass sliding block 20 of orthogonal wear prevention cavity 17, two sides central authorities in balancing weight 4 upper left corners of rectangular parallelepiped are processed with along the spring eye in a row 12 of detection probe 2 sides of advancing, in spring eye 12, be provided with goring push spring 13, goring push spring 13 is pressed on the inside surface of " L " type framework 14 two sides by spring thimble 22 tops, balancing weight 4 be connected probe 2, front clamp piece 6, the side connecting plate 7 of rear grip block 10 is connected with upper cover plate 19 by the orthogonal side cover plate 18 in the upper left corner with upper junction plate 8, in the rear end of the balancing weight 4 of rectangular parallelepiped, a wire 16 for pulling detection probe 2 to advance is installed,
Use " L " the type framework 14 made from stainless steel along the two side of cavity 17 inner transition circular arcs to be detected is built the operation passage of a detection probe 2, the two side of " L " type framework 14 is mutually vertical, and the through hole 23 of the goring push spring 13 that is arranged on rectangular parallelepiped balancing weight 4 two sides, upper left corner central authorities from side cover plate 18 and upper cover plate 19 stretches out top and be pressed on the inside surface of " L " type framework 14 two sides.
During detection, first set the parameter of ultrasonic phased array inspection instrument, comprise and control phased array probe transmitting, receive the wafer work rule of sound wave, detection sensitivity, imaging gate etc., compress successively again eight goring push springs 13 that stretch out side cover plate 18 and upper cover plate 19, probe and clamping counter weight device are put into " L " type framework 14, probe is set and detects reference position, scrambler is made zero, then pull gently finer wire line to drive probe along detected circular arc sidewall, to move stably, make ultrasound wave be normally incident in each angle position of tested circular arc, realize the high-sensitivity detection of circular arc all sites.Testing result can observe whether there is defect by B scan image and C scan image, because detection system is connected with scrambler 3, thus measuring sonde range ability automatically, the accurate location of realization to defect, and show by C scan image.
By detecting, at the transition arc position of above-mentioned three kinds of cavity structures, all find a lamination defect, by B scan image, can judge defect buried depth, by C scan image, can measure defect size and defect apart from the horizontal range that detects initiating terminal.
Claims (5)
1. one kind for cavity inside transition arc place ultrasonic phase array detection system, this system comprises ultrasonic phased array inspection instrument (1), detection probe (2) and locating device (3), ultrasonic phased array inspection instrument (1) is by cable (5) and locating device (3), detection probe (2) connects, it is characterized in that: detection probe (2) is front, rear front clamp piece (6) for both sides, rear grip block (10) clamps, detection probe (2) and front clamp piece (6), the upper left corner of rear grip block (10) is fixed on orthogonal side connecting plate (7) and upper junction plate (8), front clamp piece (6), the two sides in the lower right corner of rear grip block (10) are parallel with the two sides of cavity inside transition arc to be detected respectively, front clamp piece (6), the lower right corner of rear grip block (10) is a circular arc (9) with cavity inside transition arc same curvature to be detected, on the lateral surface of front clamp piece (6), be processed with the mounting hole for installing cables line (5) and water pipe (11), on the lateral surface of rear grip block (10), be fixedly connected with the balancing weight (4) of a rectangular parallelepiped, two sides central authorities in balancing weight (4) upper left corner of rectangular parallelepiped are processed with along the spring eye in a row (12) of detection probe (2) side of advancing, in spring eye (12), be provided with goring push spring (13), balancing weight (4) be connected probe (2), front clamp piece (6), the side connecting plate (7) of rear grip block (10) is connected with upper cover plate (19) by the orthogonal side cover plate in the upper left corner (18) with upper junction plate (8),
The operation passage of a detection probe (2) is built with " L " type framework (14) in two side along cavity to be detected (17) inner transition circular arc, the two side of " L " type framework (14) is mutually vertical, and the through hole (23) of the goring push spring (13) that is arranged on rectangular parallelepiped balancing weight (4) two sides, upper left corner central authorities from side cover plate (18) and upper cover plate (19) stretches out top and be pressed on the inside surface of " L " type framework (14) two side.
2. according to claim 1 for cavity inside transition arc place ultrasonic phase array detection system, it is characterized in that: on the clamping face of the front clamp piece (6) of detection probe (2), rear grip block (10), be provided with the arc boss (15) that supports detection probe (2), the curved surface of the cambered surface of this arc boss (15) and detection probe (2) matches.
3. according to claim 1 for cavity inside transition arc place ultrasonic phase array detection system, it is characterized in that: in the rear end of the balancing weight (4) of rectangular parallelepiped, a wire (16) for pulling detection probe (2) to advance is installed.
4. according to claim 1 for cavity inside transition arc place ultrasonic phase array detection system, it is characterized in that: the two sides in balancing weight (4) lower right corner are provided with organic glass side slide (21) and the organic glass sliding block (20) of orthogonal wear prevention cavity (17).
5. according to claim 1 for cavity inside transition arc place ultrasonic phase array detection system, it is characterized in that: goring push spring (13) is pressed on the inside surface of " L " type framework (14) two side by spring thimble (22) top.
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| CN103543200B (en) * | 2013-09-30 | 2015-12-02 | 中国航空工业集团公司北京航空材料研究院 | Gross focusing rule defining method before the flaw detection of ultrasonic phase array probe |
| DE102014102374B4 (en) * | 2014-02-24 | 2016-01-14 | Areva Gmbh | Method for testing a workpiece by means of ultrasound |
| CN103926321B (en) * | 2014-03-25 | 2016-04-20 | 天津大学 | A kind of engine inner chamber corrosion default mark localization method |
| CN106442740A (en) * | 2016-08-31 | 2017-02-22 | 成都铁安科技有限责任公司 | Phased array self-aggregation probe, arc chipset and chip for detecting solid carriage axle |
| CN111855819B (en) * | 2020-07-28 | 2023-03-24 | 广东汕头超声电子股份有限公司 | Nondestructive flaw detection array ultrasonic probe and welding method thereof |
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| US7694564B2 (en) * | 2007-05-21 | 2010-04-13 | Alstom Technology Ltd. | Boiler tube inspection probe with centering mechanism and method of operating the same |
| JP2009080023A (en) * | 2007-09-26 | 2009-04-16 | Taiyo Nippon Sanso Corp | Ultrasonic inspection probe and ultrasonic inspection scanner |
| US8141442B2 (en) * | 2009-05-04 | 2012-03-27 | Westinghouse Electric Company Llc | Pipe scanner |
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