CN105300578A - Ultrasonic-wave stress detection device capable of adjusting acoustic beam angle and test area - Google Patents
Ultrasonic-wave stress detection device capable of adjusting acoustic beam angle and test area Download PDFInfo
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- CN105300578A CN105300578A CN201510801844.0A CN201510801844A CN105300578A CN 105300578 A CN105300578 A CN 105300578A CN 201510801844 A CN201510801844 A CN 201510801844A CN 105300578 A CN105300578 A CN 105300578A
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Abstract
Provided is an ultrasonic-wave stress detection device capable of adjusting an acoustic beam angle and a test area. The detection device comprises a center positioning bench (100). Parallel guide rail racks (200) are fixed on opposite side faces of the center positioning bench (100) and are slidably connected with a glass pedestal (300). A U-type groove rail (310) with a protruding arc guide rail face (311) is arranged on the upper part of the glass pedestal (300). A probe fixing wedge (400) is slidably connected with the side wall of the U-type groove rail (310). The recessed arc face of the probe fixing wedge (400) cooperates with the protruding arc guide rail face (311) of the U-type groove rail (310). A probe fixing cavity (500) used for fixing an ultrasonic-wave probe is arranged on the upper part of the probe fixing cavity (500). According to the invention, adjustment and correction of first critical angles of a welded seam and of a heat affected zone and residual stress tests for different kinds of materials can be achieved; and residual stress tests of to-be-tested workpieces in different areas of regions can be achieved.
Description
Technical field
The present invention relates to the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle and test zone, belong to residual stress test field.
Background technology
Material produces unrelieved stress when producing plastic deformation under external force, and elastic deformation can not produce unrelieved stress.Unrelieved stress is a main standard of workpiece quality assessment, to the military service of workpiece, there is very large harm, such as accelerate fatigue crackle germinating, reduce fatigue lifetime, stress corrosion, distortion, unstability etc. occur, therefore larger to the Non-Destructive Testing meaning of unrelieved stress.
Ultrasound wave utilizes Sound elasticity principle to test unrelieved stress, and Sound elasticity principle refers to that the stress in hyperacoustic velocity of propagation and workpiece presents linear relationship.Current use ultrasonic investigation waveform that is more, comparatively maturation is critical refraction longitudinal wave (L
cRripple), the special pattern that critical refraction longitudinal wave produces when to be compressional wave incident with first critical angle, the surface of parallel workpiece for measurement is propagated.Distance between fixing transmitting-receiving probe, then can test out the state of unrelieved stress in workpiece according to the change in critical refraction longitudinal wave travel-time within the workpiece.Key based on the unrelieved stress detection method of critical refraction longitudinal wave is the first critical angle θ determining workpiece for measurement material, arcsin θ=(V
1/ V
2), V
1hyperacoustic velocity of propagation in workpiece for measurement, relevant with institutional framework with the material of workpiece for measurement, V
2for velocity of propagation hyperacoustic in glass voussoir.
The ultrasonic transmission/reception probe of existing ultrasound wave unrelieved stress checkout equipment is fixed on the relative dip plane of two of an organic glass voussoir, and test zone is fixed, and fixes relative to the angle of inclination on workpiece for measurement surface.This fixing pitch angle is the first critical angle tested and calculated based on the mother metal of welding work pieces to be measured, and weld seam, there is larger difference between heat-affected zone and the tissue of mother metal; Therefore also there is a great difference in first critical angle, certainly exists larger measuring error by the unrelieved stress in the first critical angle test territory, Seam and heat effected zone calculated based on mother metal.And assessment unrelieved stress is all the residual stress test to both direction (parallel bead direction and perpendicular to bead direction) usually, and existing ultrasound wave unrelieved stress checkout equipment once only can carry out residual stress test to of a workpiece direction (parallel bead direction or perpendicular to bead direction), when changing to another direction, before and after being easy to cause, the inconsistent or direction out of plumb in the position of test, produces larger test error.
Summary of the invention
The object of this invention is to provide the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle and test zone.Angle (the acoustic beam angle of ultrasonic investigation) between this equipment adjustable ultrasonic transmitting-receiving probe and workpiece for measurement surface, not only can realize the adjustment correction of butt welded seam, heat-affected zone first critical angle; Also can carry out the residual stress test of not same material; And the spacing of this equipment adjustable ultrasonic transmitting-receiving probe, realize the residual stress test in workpiece for measurement zones of different area.
The present invention realizes the technical scheme that its goal of the invention takes: the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle and test zone, comprising: center positioning table; Described center positioning table opposite flank is fixed with closed slide frame, is fixed on the pair of parallel guide rail bracket of center positioning table opposite flank on same axis; Described each closed slide frame all slidably connects glass base, the top of described glass base is the U-type groove rail with dome arc guide rail level, the fixing voussoir of probe is connected with the side walls of described U-type groove rail, and the fixing concaved circular cambered surface of voussoir of probe coordinates with the dome arc guide rail level of U-type groove rail; Described probe is fixed voussoir top and is provided with probe lock chamber, for fixing ultrasonic probe.
Using method of the present invention is:
A, center positioning table and the closed slide frame that is fixed on center positioning table are fixed on workpiece for measurement surface, regulate the position of each glass base on closed slide frame according to region to be measured;
B, between each glass base and workpiece for measurement surface, daubing coupling agent between the concaved circular cambered surface of the bottom of the dome arc guide rail level of glass base top U-type groove rail and the fixing voussoir of probe;
C, the fixing position of voussoir on U-type groove rail of adjustment probe, the inclination angle namely between adjustable ultrasonic probe and workpiece for measurement surface, is reached through the first critical angle of workpiece mother metal measuring and calculation; When measuring the unrelieved stress of weld seam and heat-affected zone, finely tune relative probe and fix the position of voussoir on U-type groove rail, make ultrasonic probe and the inclination angle of surface of the work be the first critical angle of corresponding measured zone, can residual stress test be carried out.
D, when testing the unrelieved stress of another workpiece material, regulate the fixing position of voussoir on U-type groove rail of probe, make the inclination angle between ultrasonic probe and workpiece for measurement surface reach the first critical angle of another workpiece material; Realize the residual stress test to different materials.
Wherein, the relative ultrasound waves be fixed on the opposing glass base on the pair of parallel guide rail bracket of center positioning table opposite flank visits first for receiving transducer, and one is transmitting probe; Whether transmitting probe launches ultrasonic longitudinal wave, be first critical angle by the detection ultrasound wave wave amplitude attenuation determination ultrasonic probe of receiving transducer and the inclination angle of surface of the work,
Compared with prior art, the invention has the beneficial effects as follows:
One, by regulating the position of glass base on closed slide frame, and then regulating the distance between ultrasonic transmitting-receiving probe, according to work status and need of production, realizing the test of unrelieved stress in zones of different, meeting client and need of production.
Two, by regulating the fixing position of voussoir on U-type groove rail of probe, namely the angle (the acoustic beam angle of ultrasonic investigation) between adjustable ultrasonic probe and workpiece for measurement surface, the residual stress test of workpiece material not of the same race can be carried out, reduce production cost and the process-cycle of checkout equipment, increase work efficiency.
The attenuation of the ultrasound wave wave amplitude that three, can receive according to ultrasonic probe, the fixing position of voussoir on U-type groove rail of fine setting probe, realize butt welded seam, heat-affected zone residual stress test time first critical angle adjustment correction, improve accuracy of detection.
Further, the centre of center positioning table of the present invention is circular locating openings.
Like this, the region to be detected more accurately checkout equipment being fixed on workpiece is conducive to.
Further, the closed slide frame being fixed on center positioning table side of the present invention is mutually perpendicular two right.
Like this, can not center of rotation positioning table, can test the unrelieved stress of the same test position both direction of workpiece for measurement (parallel bead direction and vertical weld direction), avoid the front and back test position deviation because center of rotation positioning table causes or measurement direction out of plumb, improve residual stress test efficiency and stress test precision.
Further, the concrete mode that closed slide frame of the present invention and glass base are slidably connected is: two guiding cheekns of described closed slide frame are equipped with the horizontal groove passed for dog screw, glass base is between two guide rails, and the glass base side relative with two guiding cheekns is provided with the tapped blind hole coordinated with dog screw; Dog screw is screwed into the tapped blind hole of glass base side through the horizontal groove of two guiding cheekns, and glass base can be made to slide along closed slide frame, and makes the head of screw of dog screw compress guiding cheekn location by screwed in place screw.
This connected mode can regulate the position of glass base on closed slide frame quickly and easily, realize the residual stress test within the scope of workpiece different distance, meet produced on-site needs, also be convenient to regulate the distance between transmitting-receiving ultrasonic probe, the larger test error avoiding ultrasonic attenuation to cause.
Further again, the horizontal groove edge of parallel orbit frame two guiding cheekn of the present invention is provided with scale.
Like this, the position of relative glass base on closed slide frame can be regulated more accurately, regulate the distance between ultrasonic transmission/reception transducer more accurately, improve the positioning precision to test zone.
Further, the horizontal groove of every bar guiding cheekn of closed slide frame of the present invention is parallel two up and down, the tapped blind hole of relative glass base side is also upper and lower two, the horizontal groove on described top and the tapped blind hole on top are positioned at same level position, and the horizontal groove of bottom and the tapped blind hole of bottom are positioned at same level position.
Like this, the fixing of glass base can be made and slide more stable, improving the accuracy of test.
Further, the concrete mode that sidewall and the fixing voussoir of probe of U-type groove rail of the present invention are slidably connected is: the two side of described U-type groove rail is equipped with that pass for lock-screw, parallel with dome arc guide rail level arc-shaped slot, and the side that the fixing voussoir of probe is relative with U-type groove trackside wall is provided with the tapped blind hole coordinated with lock-screw; Lock-screw is through the arc-shaped slot of U-type groove trackside wall, be screwed into the tapped blind hole of the fixing voussoir side of probe, probe can be made to fix voussoir slide along the dome arc guide rail level of U-type groove rail, and make the head of screw of lock-screw compress the locking of U-type groove trackside wall by tightening lock-screw.
Such connected mode can regulate the fixing position of voussoir on U-type groove rail of probe quickly and easily, thus regulate probe relative to the angle of test plane, realize the first critical angle micro-variations that same fixed equipment brings different materials residual stress test and correction uneven microstructure.
Further again, the arc-shaped slot edge of U-type groove trackside wall of the present invention is provided with pitch angle scale.
Like this, the accurate location of fixing voussoir of being convenient to pop one's head in, the i.e. accurate control of ultrasonic probe and workpiece for measurement surficial inclination.
Further, probe of the present invention fixes the build-up tolerance leaving 1-2mm between the concaved circular cambered surface of voussoir and the dome arc guide rail level of U-type groove rail, fills up described build-up tolerance during detection by couplant.
Like this, convenient for assembly, between the concaved circular cambered surface of the fixing voussoir of probe and the dome arc guide rail level of U-type groove rail, evenly coat couplant during use, make the couple state of glass base and the fixing voussoir of probe better, avoid causing ultrasonic attenuation situation to occur out of order by interface coupling.
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
Accompanying drawing explanation
Fig. 1 be the embodiment of the present invention one face structural representation.
Fig. 2 is the plan structure schematic diagram of the embodiment of the present invention one.
Fig. 3 be the embodiment of the present invention two face structural representation.
Fig. 4 is the plan structure schematic diagram of the embodiment of the present invention two.
Embodiment
Embodiment one
Fig. 1, Fig. 2 illustrate, a kind of embodiment of the present invention is, the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle and test zone, comprising: center positioning table 100; Described center positioning table 100 opposite flank is fixed with closed slide frame 200, is fixed on the pair of parallel guide rail bracket 200 of center positioning table 100 opposite flank on same axis; Described each closed slide frame 200 all slidably connects glass base 300, the top of described glass base 300 is the U-type groove rail 310 with dome arc guide rail level 311, the fixing voussoir 400 of probe is connected with the side walls of described U-type groove rail 310, and the fixing concaved circular cambered surface of voussoir 400 of probe coordinates with the dome arc guide rail level 311 of U-type groove rail 310; Described probe is fixed voussoir 400 top and is provided with probe lock chamber 500, for fixing ultrasonic probe.
The centre of center positioning table 100 described in this example is circular locating openings 110.
The closed slide frame 200 being fixed on center positioning table 100 side described in this example is for mutually perpendicular two right.
Two guiding cheekns of the frame of closed slide described in this example 200 are equipped with the horizontal groove 210 passed for dog screw 600, glass base 300 is between two guide rails, and glass base 300 side relative with two guiding cheekns is provided with the tapped blind hole coordinated with dog screw 600; The horizontal groove 210 that dog screw 600 passes two guiding cheekns is screwed into the tapped blind hole of glass base 300 side, and glass base 300 can be made to slide along closed slide frame 200, and makes head of screw compress guiding cheekn location by screwed in place screw 600.Horizontal groove 210 edge of described parallel orbit frame 200 liang of guiding cheekns is provided with scale.
The horizontal groove 210 of every bar guiding cheekn of the frame of closed slide described in this example 200 is parallel two up and down, the tapped blind hole of relative glass base 300 side is also upper and lower two, the horizontal groove 211 on described top is positioned at same level position with the tapped blind hole on top, and the horizontal groove 212 of bottom is positioned at same level position with the tapped blind hole of bottom.
The concrete mode that the sidewall of the rail of U-type groove described in this example 310 and the fixing voussoir 400 of probe are slidably connected is: the two side of described U-type groove rail 310 be equipped with for locking screw 700 follow closely through, parallel with dome arc guide rail level 311 arc-shaped slot 312, the side that probe fixes voussoir 400 relative with U-type groove rail 310 sidewall is provided with the tapped blind hole coordinated with lock-screw 700; Lock-screw 700 is through the arc-shaped slot 312 of U-type groove rail 310 sidewall, be screwed into the tapped blind hole of fixing voussoir 400 side of probe, probe can be made to fix voussoir 400 slide along the dome arc guide rail level 311 of U-type groove rail 310, and make head of screw compress the locking of U-type groove rail 310 sidewall by tightening lock-screw 700.Arc-shaped slot 312 edge of described U-type groove rail 310 sidewall is provided with pitch angle scale.
Leave the build-up tolerance of 1-2mm between the concaved circular cambered surface of the fixing voussoir 400 of probe described in this example and the dome arc guide rail level 311 of U-type groove rail 310, during detection, fill up described build-up tolerance by couplant.
Embodiment two
Fig. 3, Fig. 4 illustrate, another kind of embodiment of the present invention is, the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle and test zone, comprising: center positioning table 100; Described center positioning table 100 opposite flank is fixed with closed slide frame 200, is fixed on the pair of parallel guide rail bracket 200 of center positioning table 100 opposite flank on same axis; Described each closed slide frame 200 all slidably connects glass base 300, the top of described glass base 300 is the U-type groove rail 310 with dome arc guide rail level 311, the fixing voussoir 400 of probe is connected with the side walls of described U-type groove rail 310, and the fixing concaved circular cambered surface of voussoir 400 of probe coordinates with the dome arc guide rail level 311 of U-type groove rail 310; Described probe is fixed voussoir 400 top and is provided with probe lock chamber 500, for fixing ultrasonic probe.
The centre of center positioning table 100 described in this example is circular locating openings 110.
Two guiding cheekns of the frame of closed slide described in this example 200 are equipped with the horizontal groove 210 passed for dog screw 600, glass base 300 is between two guide rails, and glass base 300 side relative with two guiding cheekns is provided with the tapped blind hole coordinated with dog screw 600; The horizontal groove 210 that dog screw 600 passes two guiding cheekns is screwed into the tapped blind hole of glass base 300 side, and glass base 300 can be made to slide along closed slide frame 200, and by screwed in place screw 600, head of screw compression guiding cheekn is located.Horizontal groove 210 edge of described parallel orbit frame 200 liang of guiding cheekns is provided with scale.
The concrete mode that the sidewall of the rail of U-type groove described in this example 310 and the fixing voussoir 400 of probe are slidably connected is: the two side of described U-type groove rail 310 be equipped with for locking screw 700 follow closely through, parallel with dome arc guide rail level 311 arc-shaped slot 312, the side that probe fixes voussoir 400 relative with U-type groove rail 310 sidewall is provided with the tapped blind hole coordinated with lock-screw 700; Lock-screw 700 is through the arc-shaped slot 312 of U-type groove rail 310 sidewall, be screwed into the tapped blind hole of fixing voussoir 400 side of probe, probe can be made to fix voussoir 400 slide along the dome arc guide rail level 311 of U-type groove rail 310, and make head of screw compress the locking of U-type groove rail 310 sidewall by tightening lock-screw 700.Arc-shaped slot 312 edge of described U-type groove rail 310 sidewall is provided with pitch angle scale.
Leave the build-up tolerance of 1-2mm between the concaved circular cambered surface of the fixing voussoir 400 of probe described in this example and the dome arc guide rail level 311 of U-type groove rail 310, during detection, fill up described build-up tolerance by couplant.
Claims (9)
1. a ultrasound wave stress mornitoring equipment for adjustable acoustic beam angle and test zone, comprising: center positioning table (100); Described center positioning table (100) opposite flank is fixed with closed slide frame (200), is fixed on the pair of parallel guide rail bracket (200) of center positioning table (100) opposite flank on same axis; Described each closed slide frame (200) all slidably connects glass base (300), the top of described glass base (300) is for having the U-type groove rail (310) of dome arc guide rail level (311), the fixing voussoir (400) of probe is connected with the side walls of described U-type groove rail (310), and the fixing concaved circular cambered surface of voussoir (400) of probe coordinates with the dome arc guide rail level (311) of U-type groove rail (310); Described probe is fixed voussoir (400) top and is provided with probe lock chamber (500), for fixing ultrasonic probe.
2. the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle according to claim 1 and test zone, is characterized in that: the centre of described center positioning table (100) is circular locating openings (110).
3. the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle according to claim 1 and test zone, is characterized in that: described in be fixed on center positioning table (100) side closed slide frame (200) for mutually perpendicular two right.
4. the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle according to claim 1 and test zone, it is characterized in that: the concrete mode that described closed slide frame (200) and glass base (300) are slidably connected is: two guiding cheekns of described closed slide frame (200) are equipped with the horizontal groove (210) passed for dog screw (600), glass base (300) is between two guide rails, and glass base (300) side relative with two guiding cheekns is provided with the tapped blind hole coordinated with dog screw (600); Dog screw (600) is screwed into the tapped blind hole of glass base (300) side through the horizontal groove (210) of two guiding cheekns, glass base (300) can be made to slide along closed slide frame (200), and make head of screw compress guiding cheekn location by screwed in place screw (600).
5. the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle according to claim 3 and test zone, is characterized in that: horizontal groove (210) edge of described parallel orbit frame (200) two guiding cheekn is provided with scale.
6. the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle according to claim 3 and test zone, it is characterized in that: the horizontal groove (210) of every bar guiding cheekn of described closed slide frame (200) is parallel two up and down, the tapped blind hole of relative glass base (300) side is also upper and lower two, the horizontal groove (211) on described top and the tapped blind hole on top are positioned at same level position, and the horizontal groove (212) of bottom and the tapped blind hole of bottom are positioned at same level position.
7. the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle according to claim 1 and test zone, it is characterized in that: the concrete mode that the sidewall of described U-type groove rail (310) is slidably connected with the fixing voussoir (400) of probe is: the two side of described U-type groove rail (310) be equipped with for locking screw (700) follow closely through, the arc-shaped slot (312) parallel with dome arc guide rail level (311), the side that the fixing voussoir (400) of probe is relative with U-type groove rail (310) sidewall is provided with the tapped blind hole coordinated with lock-screw (700), lock-screw (700) is through the arc-shaped slot (312) of U-type groove rail (310) sidewall, be screwed into the tapped blind hole of fixing voussoir (400) side of probe, probe can be made to fix voussoir (400) slide along the dome arc guide rail level (311) of U-type groove rail (310), and make head of screw compress the locking of U-type groove rail (310) sidewall by tightening lock-screw (700).
8. the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle according to claim 5 and test zone, is characterized in that: arc-shaped slot (312) edge of described U-type groove rail (310) sidewall is provided with pitch angle scale.
9. the ultrasound wave stress mornitoring equipment of a kind of adjustable acoustic beam angle according to claim 1 and test zone, it is characterized in that: described probe fixes the build-up tolerance leaving 1-2mm between the concaved circular cambered surface of voussoir (400) and the dome arc guide rail level (311) of U-type groove rail (310), fills up described build-up tolerance during detection by couplant.
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| CN201510801844.0A CN105300578B (en) | 2015-11-20 | 2015-11-20 | A kind of adjustable acoustic beam angle and the ultrasonic wave stress mornitoring equipment of test zone |
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| CN201510801844.0A CN105300578B (en) | 2015-11-20 | 2015-11-20 | A kind of adjustable acoustic beam angle and the ultrasonic wave stress mornitoring equipment of test zone |
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Cited By (8)
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| CN105910742A (en) * | 2016-07-01 | 2016-08-31 | 南京中车浦镇城轨车辆有限责任公司 | Ultrasonic residual stress test surface positioning coupling device |
| CN106198760A (en) * | 2016-08-30 | 2016-12-07 | 广东汕头超声电子股份有限公司 | A kind of steel rail welding line ultra sonic imaging detection method based on double array probes and system |
| CN106546368A (en) * | 2016-10-21 | 2017-03-29 | 天津大学 | A kind of method for characterizing film residual stress |
| CN109341912A (en) * | 2018-11-13 | 2019-02-15 | 西南交通大学 | A kind of ultrasonic wave plane voussoir is used for the residual stress measuring method of curve surface work pieces |
| CN110231116A (en) * | 2019-06-28 | 2019-09-13 | 大连理工大学 | A kind of composite material surface stress ultrasonic measurement method |
| CN111826516A (en) * | 2020-07-23 | 2020-10-27 | 北京理工大学 | Residual stress reduction and homogenization device of metal frame |
| CN112697328A (en) * | 2021-01-07 | 2021-04-23 | 中车青岛四方机车车辆股份有限公司 | Ultrasonic residual stress detection system and measurement method |
| CN115389069A (en) * | 2022-08-31 | 2022-11-25 | 北京理工大学 | Plane stress detection device and detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105910742A (en) * | 2016-07-01 | 2016-08-31 | 南京中车浦镇城轨车辆有限责任公司 | Ultrasonic residual stress test surface positioning coupling device |
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| CN110231116A (en) * | 2019-06-28 | 2019-09-13 | 大连理工大学 | A kind of composite material surface stress ultrasonic measurement method |
| CN111826516A (en) * | 2020-07-23 | 2020-10-27 | 北京理工大学 | Residual stress reduction and homogenization device of metal frame |
| US11814714B2 (en) | 2020-07-23 | 2023-11-14 | Beijing Institute Of Technology | Device for reducing and homogenizing residual stress of a metal frame |
| CN112697328A (en) * | 2021-01-07 | 2021-04-23 | 中车青岛四方机车车辆股份有限公司 | Ultrasonic residual stress detection system and measurement method |
| CN115389069A (en) * | 2022-08-31 | 2022-11-25 | 北京理工大学 | Plane stress detection device and detection method |
| CN115389069B (en) * | 2022-08-31 | 2024-04-19 | 北京理工大学 | Plane stress detection device and detection method |
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| CN105300578B (en) | 2017-12-08 |
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Inventor after: Gou Guoqing Inventor after: Chen Jia Inventor after: Zhu Zhongyin Inventor after: Zhu Qimeng Inventor after: Xu Lidong Inventor after: Chen Hui Inventor after: Ma Chuanping Inventor after: Zhu Pengfei Inventor before: Zhu Qimeng Inventor before: Gou Guoqing Inventor before: Xu Lidong Inventor before: Chen Hui Inventor before: Chen Jia Inventor before: Zhu Zhongyin Inventor before: Ma Chuanping Inventor before: Zhu Pengfei |