CN105910742A - Ultrasonic residual stress test surface positioning coupling device - Google Patents

Ultrasonic residual stress test surface positioning coupling device Download PDF

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Publication number
CN105910742A
CN105910742A CN201610510750.2A CN201610510750A CN105910742A CN 105910742 A CN105910742 A CN 105910742A CN 201610510750 A CN201610510750 A CN 201610510750A CN 105910742 A CN105910742 A CN 105910742A
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China
Prior art keywords
residual stress
stress test
coupling device
test surface
ultrasound wave
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CN201610510750.2A
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CN105910742B (en
Inventor
薛海峰
高沧
夏宁
赵佳佳
戴忠晨
云中煌
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Nanjing Zhongche Puzhen Urban Rail Vehicle Co Ltd
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Nanjing Zhongche Puzhen Urban Rail Vehicle Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0047Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/25Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons
    • G01L1/255Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons using acoustic waves, or acoustic emission

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The invention discloses an ultrasonic residual stress test surface positioning coupling device, comprising an organic glass wedge block, a transducer fixing threaded hole, a positioning lens cone, a glue film bag, a water flow pipe and a mini water tank, wherein the organic glass wedge block fixes an ultrasonic transducer or an ultrasonic sending and receiving probe, and the downside of the threaded hole is directly connected with the lower surface of the organic glass wedge block; and the positioning lens cone is positioned in the middle of the glass wedge block, and the glue film bag is in seamless connection with the transducer fixing threaded hole. Compared with the existing ultrasonic residual stress test surface coupling devices, on one hand, the ultrasonic residual stress test surface positioning coupling device disclosed by the invention can quickly, simply and flexibly position a position needing a stress test and ensure that the direction of the stress test is parallel to or perpendicular to the direction of material rolling, and on the other hand, the ultrasonic residual stress test surface positioning coupling device improves the test precision of ultrasonic residual stress, avoids a relatively high cost and a reduced production efficiency due to processing of the organic glass wedge block according to different curvature values, and realizes multiple curvature tests by virtue of a single device.

Description

A kind of ultrasound wave residual stress test surface alignment coupling device
Technical field
The present invention relates to a kind of ultrasound wave residual stress test surface alignment coupling device, being specifically related to one can be super Accurately simple location and the few ultrasound wave residual stress test surface alignment coupling of test error during sound wave residual stress test Locking device.
Background technology
The step of currently used ultrasound wave remnants test is mainly: one, the material needing test is carried out sonoelastic coefficient K Gather with zero stress calibration block ultrasonic propagation velocity;Two, treat test position to be marked, generally according to required test Two-dimensional coordinate system is set up in position;Three, the position of required test is carried out daubing coupling agent;Four, ultrasonic wave transducer will be fixed with The plexiglass block of device is fixed at coordinate to be measured;Five, to needing the coordinate points measured to carry out stress test.
Need during sonoelastic coefficient is demarcated by step one respectively rolling direction parallel to same material and Vertical rolling direction is demarcated, and ultrasound wave spread speed in zero stress calibration block also will be respectively according to parallel rolling direction It is acquired with vertical direction.Ultrasound wave is mainly based upon what residual stress was tested by Sound elasticity principle, i.e. utilizes material Residual stress in the spread speed of middle ultrasound wave and material is linear tests remnants, the spread speed of ultrasound wave Not only relevant with the stress in test piece, also relevant with the rolling direction of workpiece material.Same ultrasound wave is at zero stress sample In spread speed be also the basic data of ultrasound wave residual stress, and the spread speed that ultrasound wave is in zero stress sample, also with The rolling direction with material of sample is relevant.The generally test to material residual stress is divided into parallel rolling direction and the vertical side of rolling To stress test, if use ultrasound wave carry out residual stress test, location process can not make ultrasound wave in the material The direction of propagation accurately with material rolling direction and vertical direction, and the basic data sonoelastic coefficient K used and zero stress Spread speed in sample is to obtain, so that ultrasound wave is remaining according to parallel material rolling direction or vertical material rolling direction Stress test error is bigger;On the other hand, when the surface of the work of test is relatively rough, and the pipeline etc. with curvature is carried out During stress test, the lucite voussoir of mounting ultrasonic transducer and the contact surface of test piece cause couple state relatively Difference, causes ultrasound wave, on the poor interface of coupling, higher decay occurs, makes the resultant error of ultrasound wave residual stress test Bigger.
Currently used lucite voussoir transparency is not enough, and the lens barrel cross hairs of nothing location is as reference substance, the most only Ultrasound wave stress test device about can be fixed on the position of required test, rule of thumb adjust lucite voussoir, make to surpass The direction of sonic propagation is parallel with the direction of test stress, and then causes error bigger.
At present ultrasonic transducer lucite is fixed voussoir and is generally used glycerol or Mel etc. as couplant, and surveys The surface contact coupling of trial work part, lucite voussoir is higher due to hardness, it is difficult to deformation, higher with roughness and with curvature Workpiece test surfaces contact time, couple state is poor.
Summary of the invention
For solving the deficiencies in the prior art, the present invention devises a kind of ultrasound wave residual stress test surface alignment coupling dress Put.
The technical scheme is that a kind of ultrasound wave residual stress test surface alignment coupling device, it is characterized in that, should Device includes that organic glass wedge block, transducer fix screwed hole, location lens barrel, glued membrane bag, water flow pipes and mini flume, described in have Machine glass voussoir mounting ultrasonic transducer or ultrasonic transmission/reception probe, below described screwed hole under straight-through lucite voussoir Surface, location lens barrel is positioned in the middle of glass voussoir, and screwed hole seamless link fixed by glued membrane bag and transducer.
Further, water flow pipes arranges water flow pressure sensor and micro pump, and micro pump is connected with mini flume.
Further, location lens barrel is high transparency lens barrel, and location lens barrel contacts side and is shaped with cross graduation mark with test point. The present invention is achieved in that glass voussoir plays the effect of mounting ultrasonic transducer, and glass voussoir mid portion arranges fixed Position lens barrel, location lens barrel is high transparency lens barrel, and the side that high transparency lens barrel contacts with test point is shaped with cross graduation mark, by seeing Examine location lens barrel and glass voussoir is fixed on the about position of required stress test, adjust organic glass according to the cross hairs in lens barrel Glass voussoir, makes the centre position of cross hairs and the centre position alignment of test point, and makes the two lines test point respectively of cross hairs Two lines overlap, reach the purpose being accurately positioned.
Further, before ultrasonic transmission/reception probe is assemblied in transducer screwed hole, below screwed hole, glued membrane bag is not noted Enter water.If just injecting water before assembling probe, the pipeline of water pump is not closed, and is easily caused current and overflows, and is screwed into transducing After device, pump tube ensure that closing, it is to avoid current overflow, after ultrasound probe assembling, by regulation regulation micro pump control Mini flume processed and the water (flow) direction of water flow pipes, when the registration of water flow pressure sensor is identical with demarcating registration, stop adjusting Micro pump.
Further, glued membrane bag can soft deform, and higher with roughness or with curvature test surfaces can realize Good coupling, decreases owing to contact surface roughness is big, the impact that the couple state that causes with curvature test surfaces is poor.
Beneficial effects of the present invention: existing ultrasound wave residual stress test surface coupling device is changed by the present invention Enter, on the one hand, can quickly, simply, flexibly location need the position of stress test, and the direction of proof stress test and material The direction of material rolling is parallel or vertical;On the other hand, glued membrane band can soft deform, higher with roughness or with curvature Test surfaces can realize good coupling, decrease owing to contact surface roughness is big, the coupling shape caused with curvature test surfaces The impact that state is poor, improves the measuring accuracy of ultrasound wave residual stress, avoids simultaneously and processes organic glass according to different curvature value Higher cost and production efficiency that glass voussoir brings reduce, it is achieved single device can be tested with multiple curvature.
Accompanying drawing explanation
Fig. 1 is invention overall structure schematic diagram;
Fig. 2 is glued membrane bag part-structure schematic top plan view of the present invention;
Fig. 3 is glued membrane bag part-structure left view schematic diagram of the present invention;
Fig. 4 be the present invention to testing of materials time the scattergram of residual stress test point chosen;
Fig. 5 is that the present invention is to positioning schematic diagram during testing of materials.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is done and further explain.
As shown in Figures 1 to 5, the detailed description of the invention of the present invention is to include that screw thread fixed by organic glass wedge block 1, transducer Hole 2, location lens barrel 3, glued membrane bag 4, water flow pipes 5 and mini flume 8, lucite voussoir 1 mounting ultrasonic transducer or super Sound wave transmitting-receiving probe, transducer is fixed straight-through lucite voussoir 1 lower surface below screwed hole 2, is positioned lens barrel 3 and be positioned at glass wedge In the middle of block 1, screwed hole 2 seamless link fixed by glued membrane bag 4 and transducer;Water flow pipes 5 arranges water flow pressure sensor 7 and Miniature water Pump 7, micro pump 7 is connected with mini flume 8.
Before test, determine according to specific works situation, unique characteristics and the production requirement of workpiece and need to carry out stress test Position, arrange coordinate points.When the stress of bead direction parallel to test point 1 is tested, according to cross hairs in lens barrel 9 Position adjustments lucite voussoir 1, makes lens barrel cross hairs 9 and the cross hairs center superposition of test point coordinate point, and and coordinate The intersecting lens of some cross hairs overlaps, by the step for can position accurately and need the coordinate position of stress test, it is ensured that super The direction of sonic propagation is parallel with the direction of stress test, prevents test point position inaccurate and ultrasonic propagation direction and stress The direction of test is not parallel and uses Stress Constants K of mistake and zero stress block spread speed to bring bigger error.
Before ultrasound probe is assemblied in transducer screwed hole, below screwed hole, glued membrane bag is not injected into water, if at dress Just injecting water before joining probe, the pipeline of water pump is not closed, and is easily caused current and overflows, and is screwed into pump tube energy after transducer Enough guarantee is closed, it is to avoid current overflow, after ultrasound probe assembles, by regulation regulation micro pump control mini flume and The water (flow) direction of water flow pipes, with specific reference to the display numerical value of water flow pressure sensor 6, regulates micro pump 7, makes mini flume 8 In water enter water flow pipes 5 or make the water in water flow pipes 5 flow out in mini flume 8, when the display of water flow pressure sensor 6 When numerical value is identical with the display numerical value of timing signal, stopping regulation micro pump 7, now glued membrane bag 4 and test surfaces reach and mark The most consistent coupling pressure, such that it is able to avoid due to test and the inconsistent coupling error brought of timing signal coupling pressure, Improve measuring accuracy.
If the surface of the work of test is the plane that roughness is higher, or the surface of test piece is with certain song Rate, glued membrane bag 4 can soft deform, makes glued membrane bag 4 and test surfaces good coupling, can the soft glued membrane bag 4 deformed to song The test such as the pipeline of rate can be with good coupling, it is to avoid process, according to different curvature value, the higher cost that organic glass wedge block brings Reduce with production efficiency, it is achieved single device can be tested with multiple curvature.
The using effect of the present invention can be verified by tests below and illustrate:
Choosing bullet train Aluminium Alloys in Common Use materials A 7N01S-T5,700*230 docks test plate (panel), arranges remnants according to same distance Stress test point.Do not use the track ultrasound wave residual stress test surface alignment coupling device of the present invention, hand-held stable fixing Ultrasound probe, directly tests test point 1-10 point residual stress, and test result see table.
Method described above installs ultrasound wave residual stress test surface alignment coupling device, by supersonic generator with super Sonic test system connects, and 1-10 point is carried out residual stress test, and the result of test see table.
The residual stress test result of employing the design is relative to weld seam both sides almost symmetry, and is provided without the design device Remaining test result is poor relative to the symmetry of weld seam both sides, uses the design device to can ensure that test process coupling pressure Concordance and with the concordance of timing signal coupling pressure, simultaneously it is also ensured that the stress direction of test is normal with the stress of demarcation The concordance of ultrasonic propagation time under number and zero stress state, thus avoid test mode and couple state discordance, survey Examination direction and fixed setting discordance, and the ultrasound wave stress test that in test process, couple state diversity causes is by mistake Difference, from the basic feature of welding residual stress, the residual stress of weld seam lateral symmetry position also has preferable symmetry, So the stress result using ultrasound wave residual stress test surface alignment coupling device to test is relatively reliable.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (6)

1. a ultrasound wave residual stress test surface alignment coupling device, is characterized in that, this device include organic glass wedge block, Transducer fixes screwed hole, location lens barrel, glued membrane bag, water flow pipes and mini flume, described lucite voussoir mounting ultrasonic Transducer or ultrasonic transmission/reception probe, straight-through lucite voussoir lower surface below described screwed hole, location lens barrel is positioned at glass In the middle of glass voussoir, screwed hole seamless link fixed by glued membrane bag and transducer.
A kind of ultrasound wave residual stress test surface alignment coupling device the most according to claim 1, is characterized in that, current Pipe arranges water flow pressure sensor and micro pump, and micro pump is connected with mini flume.
A kind of ultrasound wave residual stress test surface alignment coupling device the most according to claim 1, is characterized in that, location Lens barrel is high transparency lens barrel, and location lens barrel contacts side and is shaped with cross graduation mark with test point.
A kind of ultrasound wave residual stress test surface alignment coupling device the most according to claim 1, is characterized in that, will be super Before sound wave transmitting-receiving probe is assemblied in transducer screwed hole, below screwed hole, glued membrane bag is not injected into water.
A kind of ultrasound wave residual stress test surface alignment coupling device the most according to claim 2, is characterized in that, adjust Micro pump can control the water (flow) direction of mini flume and water flow pipes, when registration and the demarcation registration phase of water flow pressure sensor Stop adjusting micro pump simultaneously.
A kind of ultrasound wave residual stress test surface alignment coupling device the most according to claim 1, is characterized in that, glued membrane Bag can soft deform.
CN201610510750.2A 2016-07-01 2016-07-01 A kind of ultrasonic wave residual stress test surface positions coupling device Active CN105910742B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106645432A (en) * 2016-12-28 2017-05-10 中国水利水电科学研究院 Auto-coupling acoustic wave test system and acoustic wave test method
CN106679872A (en) * 2017-01-25 2017-05-17 大连理工大学 Surface residual stress ultrasonic detection method capable of achieving direct coupling wave generation
CN108088915A (en) * 2017-10-31 2018-05-29 中国大唐集团科学技术研究院有限公司火力发电技术研究所 A kind of non-destructive ultrasonic detects voussoir
CN108709933A (en) * 2018-05-17 2018-10-26 马飞虎 A kind of non-destructive detecting device for metal material production
CN109959477A (en) * 2019-03-29 2019-07-02 华南理工大学 A kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method and system
CN111678629A (en) * 2020-06-05 2020-09-18 北京理工大学 Ultrasonic monitoring probe for internal service stress of ocean structural member
CN111811707A (en) * 2020-07-23 2020-10-23 北京理工大学 Rotating member ultrasonic testing device and method based on magnetic fluid coupling
CN111811708A (en) * 2020-07-23 2020-10-23 北京理工大学 Mechanical component ultrasonic testing device and method based on magnetic fluid coupling

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CN102889955A (en) * 2012-10-10 2013-01-23 北京理工大学 Simple clamping device for ultrasonic inspection of residual stress of steel rail
CN103323535A (en) * 2012-03-20 2013-09-25 北京理工大学 Ultrasonic detection device for residual stress on near surface of hole or cavity
CN103616102A (en) * 2013-12-09 2014-03-05 北京理工大学 Ultrasound leakage longitudinal wave sensing device for detecting residual stress distribution of sheet metal
CN104931167A (en) * 2015-07-08 2015-09-23 四川广正科技有限公司 Fixed line feed apparatus of ultrasonic probe in ultrasonic wave stress measurement system
CN105300578A (en) * 2015-11-20 2016-02-03 西南交通大学 Ultrasonic-wave stress detection device capable of adjusting acoustic beam angle and test area

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100162817A1 (en) * 2008-12-26 2010-07-01 Nobuo Hara Ultrasonic stress measurement method and device
CN103323535A (en) * 2012-03-20 2013-09-25 北京理工大学 Ultrasonic detection device for residual stress on near surface of hole or cavity
CN102889955A (en) * 2012-10-10 2013-01-23 北京理工大学 Simple clamping device for ultrasonic inspection of residual stress of steel rail
CN103616102A (en) * 2013-12-09 2014-03-05 北京理工大学 Ultrasound leakage longitudinal wave sensing device for detecting residual stress distribution of sheet metal
CN104931167A (en) * 2015-07-08 2015-09-23 四川广正科技有限公司 Fixed line feed apparatus of ultrasonic probe in ultrasonic wave stress measurement system
CN105300578A (en) * 2015-11-20 2016-02-03 西南交通大学 Ultrasonic-wave stress detection device capable of adjusting acoustic beam angle and test area

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106645432A (en) * 2016-12-28 2017-05-10 中国水利水电科学研究院 Auto-coupling acoustic wave test system and acoustic wave test method
CN106679872A (en) * 2017-01-25 2017-05-17 大连理工大学 Surface residual stress ultrasonic detection method capable of achieving direct coupling wave generation
CN106679872B (en) * 2017-01-25 2019-04-23 大连理工大学 A kind of straight coupling makes the surface residual stress supersonic detection method of wave
CN108088915A (en) * 2017-10-31 2018-05-29 中国大唐集团科学技术研究院有限公司火力发电技术研究所 A kind of non-destructive ultrasonic detects voussoir
CN108709933A (en) * 2018-05-17 2018-10-26 马飞虎 A kind of non-destructive detecting device for metal material production
CN109959477A (en) * 2019-03-29 2019-07-02 华南理工大学 A kind of GIS disc insulator epoxy test block internal stress ultrasonic longitudinal wave detection method and system
CN111678629A (en) * 2020-06-05 2020-09-18 北京理工大学 Ultrasonic monitoring probe for internal service stress of ocean structural member
CN111678629B (en) * 2020-06-05 2021-10-22 北京理工大学 Ultrasonic monitoring probe for internal service stress of ocean structural member
US11604172B2 (en) 2020-06-05 2023-03-14 Beijing Institute Of Technology Ultrasonic monitoring probe for internal service stress of a marine structural component
CN111811707A (en) * 2020-07-23 2020-10-23 北京理工大学 Rotating member ultrasonic testing device and method based on magnetic fluid coupling
CN111811708A (en) * 2020-07-23 2020-10-23 北京理工大学 Mechanical component ultrasonic testing device and method based on magnetic fluid coupling
US11680858B2 (en) 2020-07-23 2023-06-20 Bejing Institute Of Technology Device and method for ultrasonic detecting of rotating member based on magnetic fluid coupling

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