CN107764443A - Portable ultraphonic residual stress detector - Google Patents
Portable ultraphonic residual stress detector Download PDFInfo
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- CN107764443A CN107764443A CN201710855224.4A CN201710855224A CN107764443A CN 107764443 A CN107764443 A CN 107764443A CN 201710855224 A CN201710855224 A CN 201710855224A CN 107764443 A CN107764443 A CN 107764443A
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- residual stress
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- pressure
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Abstract
A kind of portable ultraphonic residual stress detector, the detector includes the base (14) being vertically arranged from bottom to up, the shell (7) and pressure exerting arrangement that are arranged on base, and the pressure exerting arrangement is vertically arranged in the pressure bar (1) in the shell and the adjusting part located at the pressure bar (1) radially including one end.The present invention is used as the coverage of pressing spring under handle by the distance of adjusting nut lower surface to top cover upper surface, it is ensured that each test process is identical to the lower pressure of sound voussoir, and gained test result is stable.When the present invention on surface to be measured is non-ideal plane, it can accomplish that sound voussoir bottom is bonded with the effective of test surfaces, residual stress test error is reduced, improves measuring accuracy of the ultrasonic residual stress test instrument to metallic residual stress, operating method provided by the invention is easy.
Description
Technical field
The present invention relates to a kind of frock clamp for being used to measure metal surface residual stress, and in particular to a kind of ultrasound is remaining
Tension gauge.
Background technology
The influence for deforming to intermetallic composite coating because of metallic residual stress and being on active service safely, the detection of metallic residual stress are obtained
Extensive concern.
Ultrasonic residual stress detection technique is a kind of emerging lossless residual stress detection technique, and ultrasonic wave is in metal surface
And the difference of internal communication speed, reflect the difference of component surface and internal residual stress.The method is included in sound voussoir bottom
Portion and Metal contacts position daubing coupling agent, to ensure that higher coupling is arranged at sound voussoir bottom and metal surface, visit ultrasonic wave
The sound wave that hair is penetrated smoothly passes to part surface to be measured through sound voussoir bottom and absorbs ultrasonic signal therewith.
To ensure that height couples, hung down again to sound voussoir after couplant is applied into the position that sound voussoir bottom contacts with metal
Straight pressure, it is the drawbacks of the method to be pressed poor repeatability with hand every time, the testing result error of residual stress is very big, the coupling of smearing
Mixture causes contact site smooth, and the pressure of each hand also is difficult to ensure the stability of hand pressure.
Therefore, it is the stability of guarantee residual stress test result, it is desirable to provide one kind is easy to quantitative pressure and ensured
Sound voussoir bottom and the tooling device of test surfaces good contact.
The content of the invention
The defects of to meet prior art, there is provided a kind of fixture of portable hand-held formula, each residual stress test process pair
Sound voussoir applies uniform pressure, and guarantee sound voussoir bottom and test surfaces good contact, is directly pressed so as to solve both hands
The inconvenience and poor repeatability problem that sound voussoir is tested.
The present invention is achieved through the following technical solutions.
A kind of portable ultraphonic residual stress detector, the detector include the base being vertically arranged from bottom to up
(14) shell (7) and the pressure exerting arrangement, being arranged on base, the pressure exerting arrangement are vertically arranged in the shell including one end
Pressure bar (1) and located at pressure bar (1) adjusting part radially.
Preferably, the upper sliding block and the spring between the upper sliding block set in the shell on same axis
(8)；Sliding block (9) lower end coaxial line is disposed with the universal socket that lower end is groove and one end and coordinated with the groove
Universal joint bulb (11)；Top shoe (6) upper end is provided with the groove coordinated with pressure bar (1)；The sliding block lower end is set
There is the groove coordinated with universal socket upper end.
Preferably, shell (7) upper and lower side is respectively equipped with extension boss；The extension boss is respectively equipped with perpendicular to institute
The through hole of boss surface is stated, is provided with the upside of the upper extension boss by the fixed top cover (5) of fixture one (4)；In the top cover
The heart is provided with the through hole of pressure bar (1) insertion；The distance between regulating part two (3) below the top cover (5) and the adjusting part
More than zero；The lower extension boss is fixed by fixture two (12) with the base.
Preferably, what the base (14) included being vertically arranged from top to bottom sets with universal joint bulb (11) coaxial line
The section put is that cross fixes mounting (13) and boss-shaped sound voussoir (16)；The upper end insertion institute of the cross ledge
State the groove of universal joint bulb (11) lower end；It is provided with the ledge of the cross lower end and is embedded the recessed of fixture three (17)
Groove；The protuberance of the cross horizontal direction is located at boss-shaped sound voussoir (16) upper end；Sound voussoir (16) both sides
It is respectively equipped with inclined-plane with a vertical the groove that ultrasonic probe (15) is provided with 30~45° angle；The ultrasonic wave is visited
Manhole is provided with base upper surface corresponding to head (15) axial direction.
Preferably, the pressure bar (1) is made up of following component materials by mass percentage：25.5%~27.0%
Cr, 14.5%~16.0%Co, 3.0%~3.5%Mo, 0.5%~0.8%Ti, remaining is Fe.
Preferably, the regulating part one and regulating part two are nut；The fixture one and fixture two are interior hexagonal spiral shell
Nail；The fixture three is flat head screw.
The regulating part one and regulating part two are made up of following component materials by mass percentage：C：3.6~
3.9%th, Si：2.5~2.8%, Mn：0.5~0.7%, Ni：0.9~1.5, Bi：0.08~0.1%, S：＜ 0.025%, P：＜
0.05%th, remaining is Fe.
With immediate prior art ratio, technical scheme provided by the invention has following excellent effect：
Technical scheme provided by the invention is used as under handle by adjusting nut lower surface to the distance between top cover upper surface
The coverage of pressing spring, the determination of distance ensure that each test process is constant identical to pressure under sound voussoir so that inspection
It is stable to survey result.
Technical scheme because the couplant thicknesses of layers being applied between sound voussoir bottom and surface to be measured is identical,
And then ensure that push handle rotates in spring pressure effect lower cardan bulb in universal socket, it is non-to realize surface to be measured
Sound voussoir bottom is bonded with effective between test surfaces during ideal plane, greatly reduces residual stress test error, is improved super
Measuring accuracy of the sound residual stress test instrument to metallic residual stress.
Operating method provided by the invention is simple, can ensure that the test accuracy of ultrasonic residual stress test instrument and portable
Property.
Brief description of the drawings：
Fig. 1 is portable ultraphonic residual stress detector schematic diagram；
Fig. 2 is portable ultraphonic residual stress detector internal structure schematic diagram；
Fig. 3 is portable ultraphonic residual stress detector top view；
Fig. 4 is portable ultraphonic residual stress detector Section A-A schematic diagram；
Fig. 5 is portable ultraphonic residual stress detector working state schematic representation；
Fig. 6 is portable ultraphonic residual stress detector free state schematic diagram.
In figure, 1 is pressure bar；2 be regulating part one；3 be regulating part two；4 be fixture one；5 be top cover；6 be top shoe；
7 be shell；8 be spring；9 be sliding block；10 be universal socket；11 be universal joint bulb；12 be fixture two；13 be fixation
Frame；14 be base；15 be ultrasonic probe；16 be sound voussoir；17 be fixture three；18 samples to be tested.
Embodiment
The embodiment of the present invention is described further with reference to embodiments, but the present invention is not limited to these
Embodiment.
It is portable ultraphonic residual stress detector schematic diagram provided by the invention as shown in Figure 1.Divided according to function, should
Invention is made up of two parts, respectively constant-pressure applying portion and adaptive contact portion.
It is illustrated in figure 2 the profile of portable ultraphonic residual stress detector provided by the invention.
Constant-pressure applying portion include pressure bar 1, regulating part 1, regulating part 23, top shoe 6, spring 8, sliding block 9,
Universal socket 10, universal joint bulb 11 etc..Regulating part 1, regulating part 23 and the bolt on pressure bar 1 form screw thread pair, pressure
The bottom of bar 1 is threadedly coupled with top shoe 6, and top shoe 6 and sliding block 9 are positioned in shell 7, and spring 8 is placed on top shoe 6 with
Between sliding block 9, sliding drives top shoe 6 to be moved down in shell 7 to pressure bar 1 downwards, so as to compression spring 8, sliding block 9 with
Universal socket 10 is connected, so as to which lower pressure is applied on universal socket 10 caused by spring-compressed, universal joint bulb 11 and ten thousand
Universal joint is formed to section seat 10, universal joint bulb 11 being capable of the freely activity in universal socket 10.
Adaptive contact portion includes fixed seat 13, sound voussoir 16, fixture 3 17 etc..The upper end of fixed mount 13 and universal joint
The lower end of bulb 11 is threadedly coupled, and lower end is connected through the through hole among sound voussoir 16 by fixture 3 17.In universal joint
Seat 10 is pushed under power effect, and the bottom of sound voussoir 16 adaptively can coincide with plane to be measured, realize the sound wedge in non-ideal plane
The bottom of block 16 can be effectively bonded with test surfaces, be provided with ultrasonic probe 15 on sound voussoir 16 obliquely.
It is illustrated in figure 3 the top view of portable ultraphonic residual stress detector.
It is illustrated in figure 4 portable ultraphonic residual stress detector Section A-A schematic diagram.
It is illustrated in figure 5 portable ultraphonic residual stress detector working state schematic representation.Regulating part 23 is adjusted first,
The lower surface of regulating part 23 is determined to the distance of the upper surface of top cover 5, the distance for 1 time pressing spring of pressure bar 8 coverage, instead
To regulating part 1 is screwed, the distance is fixed.Then to the bottom daubing coupling agent of sound voussoir 16, hand-held housing 7, the present invention is put
It is placed on the surface of sample to be tested 18, base 14 contacts with surface to be measured, pushes pressure bar 1 and causes the lower surface of regulating part 23 and top
The upper surface of lid 5, rotated in the pressure of spring 8 effect lower cardan bulb 11 in universal socket 10, the bottom of sound voussoir 16 is certainly
Plane to be measured is adapted to, realizes that the bottom of sound voussoir 16 can be effectively bonded with test surfaces when surface to be measured is non-ideal plane.
Then pressure bar 1, the resilience of spring 8 are unclamped, sound voussoir 16 unloads, and avoids the deformation of sound voussoir 16 under pressure from causing two
The change of distance between ultrasonic probe 15, now two ultrasonic probes 15 launch and received ultrasonic signal, pass through remnants
There is the change to ultrasonic transmission speed in stress, and then solve the residual stress for obtaining body structure surface to be measured.
It is illustrated in figure 6 portable ultraphonic residual stress detector free state schematic diagram.After residual stress test,
Shell 7 is picked up, the bottom of sound voussoir 16 separates with surface to be measured, and the present invention recovers to free state, is next time to surface to be measured
Ultrasonic residual stress test is carried out to prepare.
The above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited, the common skill of art
Art personnel should be appreciated that can modify or equivalent substitution with reference to above-described embodiment to the embodiment of the present invention,
These are applying for pending claim protection model without departing from any modification of spirit and scope of the invention or equivalent substitution
Within enclosing.
Claims (4)
1. a kind of portable ultraphonic residual stress detector, base (14) that the detector includes being vertically arranged from bottom to up,
Shell (7) and the pressure exerting arrangement being arranged on base, it is characterised in that the pressure exerting arrangement is vertically arranged in described including one end
Pressure bar (1) in shell and the adjusting part located at the pressure bar (1) radially.
2. portable ultraphonic residual stress detector as claimed in claim 1, it is characterised in that same axis in the shell
The upper sliding block of upper setting and the spring (8) between the upper sliding block；Sliding block (9) lower end coaxial line is set gradually
There are the universal socket that lower end is groove and the universal joint bulb (11) that one end coordinates with the groove；Top shoe (6) upper end
Provided with the groove coordinated with pressure bar (1)；The sliding block lower end is provided with the groove coordinated with universal socket upper end.
3. portable ultraphonic residual stress detector as claimed in claim 1, it is characterised in that shell (7) upper and lower side
It is respectively equipped with extension boss；The extension boss is respectively equipped with the through hole perpendicular to the boss surface, the upper extension boss
Upside is provided with by the fixed top cover (5) of fixture one (4)；The top cap central is provided with the through hole of pressure bar (1) insertion；The top
The distance covered between the regulating part two (3) below (5) and the adjusting part is more than zero；The lower extension boss leads to the base
It is fixed to cross fixture two (12).
4. portable ultraphonic residual stress detector as claimed in claim 1, it is characterised in that the base (14) include from
The section being coaxially set with the universal joint bulb (11) being up to vertically arranged down is cross fixed mount (13) and boss
Shape sound voussoir (16)；The upper end of the cross ledge is embedded in the groove of universal joint bulb (11) lower end；Described ten
The groove for being embedded fixture three (17) is provided with the ledge of font lower end；The protuberance of the cross horizontal direction is located at
Boss-shaped sound voussoir (16) upper end；It is respectively equipped with sound voussoir (16) the both sides inclined-plane with a vertical 30~45 °
The interior groove provided with ultrasonic probe (15) at angle；Set on base upper surface corresponding to ultrasonic probe (15) axial direction
There is manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855224.4A CN107764443B (en) | 2017-09-20 | 2017-09-20 | Portable ultrasonic residual stress detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855224.4A CN107764443B (en) | 2017-09-20 | 2017-09-20 | Portable ultrasonic residual stress detector |
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| Publication Number | Publication Date |
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| CN107764443A true CN107764443A (en) | 2018-03-06 |
| CN107764443B CN107764443B (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710855224.4A Active CN107764443B (en) | 2017-09-20 | 2017-09-20 | Portable ultrasonic residual stress detector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660309A (en) * | 2018-06-08 | 2018-10-16 | 北京理工大学 | A kind of gas pipeline welding residual stress high energy acoustic beam abatement device |
| CN110849521A (en) * | 2019-11-13 | 2020-02-28 | 中国石油大学(华东) | Portable loading and optical testing device applied to field residual stress |
| CN111366183A (en) * | 2020-03-13 | 2020-07-03 | 大连理工大学 | Mobile probe of integrated piezoelectric wafer with adjustable pressing force |
| CN112798164A (en) * | 2021-01-22 | 2021-05-14 | 石家庄铁道大学 | Steel construction residual stress ultrasonic monitoring device |
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| JP2005030897A (en) * | 2003-07-11 | 2005-02-03 | Fuji Electric Systems Co Ltd | Ultrasonic flow measurement system and its manufacturing method |
| CN103017951A (en) * | 2011-09-22 | 2013-04-03 | 北京理工大学 | Flat slab stress field test device |
| CN204115919U (en) * | 2014-09-30 | 2015-01-21 | 徐州工程学院 | Portable residual stress test device |
| CN105699495A (en) * | 2016-03-24 | 2016-06-22 | 江苏科技大学 | Portable ultrasonic probe pressure adjusting device and use method |
| CN106289616A (en) * | 2016-10-13 | 2017-01-04 | 西南交通大学 | The adjustable Portable probe fixing device of ultrasonic measurement of stress system coupling pressure |
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2017
- 2017-09-20 CN CN201710855224.4A patent/CN107764443B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005030897A (en) * | 2003-07-11 | 2005-02-03 | Fuji Electric Systems Co Ltd | Ultrasonic flow measurement system and its manufacturing method |
| CN103017951A (en) * | 2011-09-22 | 2013-04-03 | 北京理工大学 | Flat slab stress field test device |
| CN204115919U (en) * | 2014-09-30 | 2015-01-21 | 徐州工程学院 | Portable residual stress test device |
| CN105699495A (en) * | 2016-03-24 | 2016-06-22 | 江苏科技大学 | Portable ultrasonic probe pressure adjusting device and use method |
| CN106289616A (en) * | 2016-10-13 | 2017-01-04 | 西南交通大学 | The adjustable Portable probe fixing device of ultrasonic measurement of stress system coupling pressure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660309A (en) * | 2018-06-08 | 2018-10-16 | 北京理工大学 | A kind of gas pipeline welding residual stress high energy acoustic beam abatement device |
| CN110849521A (en) * | 2019-11-13 | 2020-02-28 | 中国石油大学(华东) | Portable loading and optical testing device applied to field residual stress |
| CN110849521B (en) * | 2019-11-13 | 2021-05-28 | 中国石油大学(华东) | Portable loading and optical testing device applied to field residual stress |
| CN111366183A (en) * | 2020-03-13 | 2020-07-03 | 大连理工大学 | Mobile probe of integrated piezoelectric wafer with adjustable pressing force |
| CN112798164A (en) * | 2021-01-22 | 2021-05-14 | 石家庄铁道大学 | Steel construction residual stress ultrasonic monitoring device |
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| Publication number | Publication date |
|---|---|
| CN107764443B (en) | 2021-01-26 |
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Effective date of registration: 20230113 Address after: 102209 South District of Future Science City, Beiqijia Town, Changping District, Beijing Patentee after: CHINALCO MATERIALS APPLICATION RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINALCO INSTITUTE OF SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 102209 building 10, Chinalco science and Technology Research Institute, South District, future science and Technology City, Beiqijia Town, Changping District, Beijing Patentee before: CHINALCO MATERIALS APPLICATION RESEARCH INSTITUTE Co.,Ltd. |
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