CN104034552A - Ultrasonic auxiliary rock sampling device and method - Google Patents
Ultrasonic auxiliary rock sampling device and method Download PDFInfo
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- CN104034552A CN104034552A CN201410301083.8A CN201410301083A CN104034552A CN 104034552 A CN104034552 A CN 104034552A CN 201410301083 A CN201410301083 A CN 201410301083A CN 104034552 A CN104034552 A CN 104034552A
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Abstract
The invention discloses an ultrasonic auxiliary rock sampling device and method. The device comprises a support rack, an ultrasonic vibration system, a sampling tool and a pneumatic element, wherein the ultrasonic vibration system is fixed on a Z-direction moving table of the support rack through a clamp; the pneumatic element is fixed in a central position of an X-direction/Y-direction moving table of the support rack; the high-frequency vibration of the rock sampling tool in the vertical direction is achieved through the ultrasonic vibration system; the flexible vertical movement of a carrier table and a machined rock specimen is achieved through the pneumatic element, then the surface of the rock and the tail end of the high-frequency vibration sampling tool are kept in a stable flexible micro-pressure contact state. By adopting the device and the method, the grinding efficiency of a SiC grinding liquid to the surface of the rack is improved through the ultrasonic vibration of the tool, and the appropriate grinding pressure is maintained, and thus the stable and efficient ultrasonic auxiliary rock sampling process is achieved.
Description
Technical field
The technical field that the invention belongs to the sampling of the experiment of microsize hard brittle material or test samples, relates in particular to a kind of ultrasonic auxiliary rock sampler and method.
Background technology
In the research work of field of earth sciences, when testing or under high-temperature and high-pressure conditions, rock carried out to physics, chemical property detection, High Temperature High Pressure petrology often need to from large rock specimens, obtain various minute sized rock samples, the shape of rock sample is generally short cylindrical shape or cuboid, and size (diameter or the length of side) is less than 5mm conventionally.The quality of prepared rock sample will directly affect the accuracy of experimental result.
At present, in laboratory, conventional rock sampler is mainly to be converted by small-size bench drill, rotary grinding motion by chisel bit is carried out grinding sampling processing to rock sample, but this sampler is only applicable to drill through columned sample, and cannot drill through the sample of cuboid.In addition, because most rocks have obvious fragility, and chisel bit is main in grinding process manually to be realized to lower feeding by operating personnel, if being affectedly bashful bad meeting, speed of feed make rock sample broken, the rock sample surface integrity got is poor and sampling efficiency is lower, the method is had relatively high expectations to operator's operant level and operating experience simultaneously, makes the operation easier of rock sampling craft larger.Therefore, develop a kind of rock sampler and corresponding rock sampling method that can high-level efficiency obtains complete microsize rock sample and processing ease and become one of urgent need to solve the problem.
Ultrasonic assisted machining shaping processing technology is towards fragility difficult-to-machine materials such as rock, glass, to carry out a kind of special process method of the efficient processing that is shaped.Common ultrasonic assisted machining forming and machining method mainly comprises the methods such as ultrasonic auxiliary drilling, grinding, turning and milling.In ultrasonic assisted machining shaping process, ultrasonic system is produced high-frequency mechanical vibration and the amplitude of vibration is increased by ultrasonic-frequency power supply, ultrasonic transducer and ultrasonic amplitude transformer, pass to machining tool, make it produce high-frequency resonant, thereby realize ultrasonic secondary process process.
It is a kind of effective ways that improve rock sampling efficiency and sampling quality that ultrasonic assistant grinding processing technology and rock sampling process is combined, but how also exist the same with routine sampling technique realizes ultrasonic sampling equipment rationally to the difficult problem of lower feeding.Anisotropy due to performances of rock, therefore constant speed of feed (electric feeding) or inhomogeneous speed of feed (hand feed) all likely cause the destruction of rock sample, and can to realize the ultrasonic auxiliary rock sampler of flexible feeding and sampling craft thereof be the difficult point of research at present in research and development.
Summary of the invention
Technical matters to be solved by this invention is the problem for above-mentioned existence, a kind of ultrasonic auxiliary rock sampler and method are provided, make rock surface and dither sampling instrument end can keep stable flexible micro-pressure contact condition, can strengthen by the ultrasonic vibration of instrument the grinding efficiency of SiC lapping liquid to rock surface, can keep suitable grinding force again, thereby realize stable, efficient ultrasonic auxiliary rock sampling process.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of ultrasonic auxiliary rock sampler, it is characterized in that, comprise bracing frame, ultrasonic vibration system, sampling instrument and pneumatic element, described bracing frame comprises that base, Z-direction transfer table and XY are to transfer table, XY is fixed on the center of base top surface to transfer table, Z-direction transfer table is fixed on base top surface, with XY to the adjacent setting of transfer table; Described ultrasonic vibration system is fixed on the Z-direction transfer table of bracing frame by fixture, wind on Z-direction transfer table drives fixture in the vertical direction to move, ultrasonic vibration system is connected with described sampling instrument, drives sampling instrument to realize dither at vertical direction; Described pneumatic element is fixed on the XY of bracing frame to the center of transfer table, and pneumatic element is connected with objective table, drives objective table to move up and down in the flexibility of vertical direction.
Press such scheme, described ultrasonic vibration system comprises ultrasonic transducer, ultrasonic amplitude transformer and ultrasonic-frequency power supply, ultrasonic transducer top is connected with ultrasonic-frequency power supply, bottom centre position connects ultrasonic amplitude transformer by studs, ultrasonic amplitude transformer adopts and is threaded with sampling instrument, and ultrasonic transducer is fixed on the Z-direction transfer table of bracing frame by fixture.
Press such scheme, the circular or square tubular structure that the lower end of described sampling instrument is hollow, thickness of pipe is 0.5mm～1mm, and sampling instrument upper end is that helicitic texture is connected with the end of ultrasonic amplitude transformer, and the material of sampling instrument is stainless steel.
Press such scheme, described pneumatic element comprises cylinder and pneumatic system, and described cylinder is double acting compact cylinder, and cylinder is vertically fixed on XY to the center of transfer table, and the piston rod in cylinder adopts and is threaded with the lower surface center of objective table; Described pneumatic system connects cylinder, for cylinder provides adjustable air pressure.
Press such scheme, described pneumatic system comprises pneumatic triple piece, source of the gas, solenoid valve and one-way throttle valve, source of the gas outlet connects pneumatic triple piece import by pipeline, pneumatic triple piece outlet is by the import of pipeline connected electromagnetic valve, two outlets of solenoid valve connect respectively an one-way throttle valve import, and the outlet of two one-way throttle valves is connected with the both ends open up and down of cylinder by pipeline respectively.
Press such scheme, the upper surface of described objective table is installed on backing plate, installs workpiece on backing plate, and objective table is also installed on up stroke stop means.
Press such scheme, described solenoid valve is two five-way electromagnetic valves.
Press such scheme, between described Z-direction transfer table and base, be fixed with bolts, two right-angle sides of reinforcement are bolted with base top surface and the Z-direction transfer table back side respectively.
Press such scheme, four jiaos of described base bottoms are provided with rubber pin, between rubber pin and base, are fixed with bolts.
The method that adopts above-mentioned a kind of ultrasonic auxiliary rock sampler, is characterized in that, described workpiece is fixed on together with backing plate to the center of objective table, regulates XY to make workpiece in the horizontal direction in rational sample position to transfer table; Open source of the gas, regulate one-way throttle valve, two five-way electromagnetic valves and pneumatic triple piece to provide suitable air pressure for cylinder, make objective table under the promotion of cylinder, move to straight up reposefully the up stroke stop means place of objective table, the distance between this position and cylinder piston range is greater than the sampling thickness of workpiece; Wind by Z-direction transfer table moves to correct position by fixture, makes the end of sampling instrument move to 0.8mm～1mm place, workpiece top, and locking wind, fixes the Z-direction position of sampling instrument; Opening ultrasonic-frequency power supply makes sampling instrument produce the high-frequency resonant of vertical direction; Open the up stroke stop means of objective table, workpiece is slowly motion straight up contacting with the sampling instrument end in ultrasonic vibration just under the promotion of cylinder, make sampling instrument end produce high-frequency percussion to the upper surface of workpiece, continue to add a small amount of SiC lapping liquid at the shock zone place of sampling instrument and surface of the work, by the dither of sampling instrument, strengthen the ablation of SiC abrasive grains; The lasting ablation to rock surface along with sampling instrument and SiC abrasive particle, workpiece continues rising under the promotion of cylinder, until sampling instrument passes workpiece and comes in contact with backing plate; Regulate two five-way electromagnetic valves to make airflow-reversing, workpiece, along with the piston of cylinder is done motion straight down, departs from sampling instrument; The dither that keeps sampling instrument, the rock sample obtaining will naturally come off in sampling instrument, can complete whole rock sampling process.
The invention has the beneficial effects as follows: the dither by ultrasonic sampling instrument improves the grinding efficiency of abrasive grains to rock surface in lapping liquid, and realize the automatic flexible feeding between rock sample and hollow sampling instrument by the support of cylinder, thereby improve the integrality that rock detects the grinding sampling efficiency of sample and guarantees the sample that obtains, reduce the operation easier of rock sampling process.
Accompanying drawing explanation
Fig. 1 is the front elevation of one embodiment of the invention.
Fig. 2 is the left view of one embodiment of the invention.
Fig. 3 is the shaft side figure of one embodiment of the invention.
Fig. 4 is the loop schematic diagram of the pneumatic element of one embodiment of the invention.
Wherein: 1-rubber pin, 2-base, 3-XY is to transfer table, 4-Z is to transfer table, 5-fixture, 6-ultrasonic transducer, 7-ultrasonic amplitude transformer, 8-sampling instrument, 9-workpiece, 10-backing plate, 11-objective table, 12-cylinder, 13-reinforcement, 14-ultrasonic-frequency power supply, 15-one-way throttle valve, two five-way electromagnetic valves of 16-, 17-pneumatic triple piece, 18-source of the gas.
Embodiment
For understanding better the present invention, below in conjunction with drawings and Examples, the invention will be further described.
As Fig. 1, 2, shown in 3, a kind of ultrasonic auxiliary rock sampler, comprise bracing frame, ultrasonic vibration system, sampling instrument 8 and pneumatic element, bracing frame comprises base 2, Z-direction transfer table 4 and XY are to transfer table 3, XY is fixed on the center of base top surface to transfer table, Z-direction transfer table is fixed on base top surface, with XY to the adjacent setting of transfer table, ultrasonic vibration system is fixed on the Z-direction transfer table of bracing frame by fixture 5, wind on Z-direction transfer table drives fixture in the vertical direction to move, ultrasonic vibration system is connected with sampling instrument 8, drive sampling instrument at the dither of vertical direction, pneumatic element is fixed on the XY of bracing frame to the center of transfer table, bottom base, four jiaos are provided with rubber pin 1, between rubber pin and base, be fixed with bolts, pneumatic element is connected with objective table 11, drives objective table to move up and down in the flexibility of vertical direction.Rock sampling instrument is connected to ultrasonic vibration system end can realize high-frequency resonant at vertical direction; Rock sample is fixed on objective table together with backing plate 10, by pneumatic element, support to realize objective table and sample in the flexible lifting of vertical direction, make rock sample surface and dither sampling instrument end can keep stable flexible micro-pressure contact condition, thereby realize stable, efficient ultrasonic auxiliary rock sampling process.
Ultrasonic vibration system comprises ultrasonic transducer 6, ultrasonic amplitude transformer 7 and ultrasonic-frequency power supply 14, ultrasonic transducer top is connected with ultrasonic-frequency power supply 14, bottom centre position connects ultrasonic amplitude transformer by studs, ultrasonic amplitude transformer adopts and is threaded with sampling instrument, the lower end of sampling instrument is the circular or square tubular structure of hollow, thickness of pipe is 0.5mm～1mm, upper end is that helicitic texture is connected with the end of ultrasonic amplitude transformer, the material of sampling instrument is stainless steel, and ultrasonic transducer is fixed on the Z-direction transfer table of bracing frame by fixture.Between Z-direction transfer table and base, be fixed with bolts, two right-angle sides of reinforcement 13 are bolted with base and Z-direction transfer table respectively, increase the rigidity of Z-direction transfer table.
Pneumatic element comprises cylinder 12 and pneumatic system, cylinder is double acting compact cylinder, vertically be fixed on XY to the center of transfer table, piston rod in cylinder adopts and is threaded with the lower surface center of objective table, the upper surface of objective table is installed on backing plate 10, on backing plate, install workpiece 9, objective table is also installed on up stroke stop means; Pneumatic system comprises pneumatic triple piece 17, source of the gas 18, solenoid valve 16 and one-way throttle valve 15, source of the gas outlet connects pneumatic triple piece import by pipeline, pneumatic triple piece outlet is by the import of pipeline connected electromagnetic valve, solenoid valve is two five-way electromagnetic valves, two outlet connects respectively an one-way throttle valve import, the outlet of two one-way throttle valves is connected (seeing Fig. 4) with the both ends open up and down of cylinder by pipeline respectively, and pneumatic system connects cylinder, for cylinder provides adjustable air pressure.
Adopt the method for above-mentioned a kind of ultrasonic auxiliary rock sampler, workpiece 9 is fixed on together with backing plate 10 to the center of objective table 11, regulate XY to make workpiece in the horizontal direction in rational sample position to transfer table 3; Open source of the gas 18, regulate one-way throttle valve 15, two five-way electromagnetic valves 16 and pneumatic triple piece 17 to provide suitable air pressure for cylinder 12, make objective table under the promotion of cylinder, move to straight up reposefully the up stroke stop means place of objective table, the distance between this position and cylinder piston range is greater than the sampling thickness of workpiece; Wind by Z-direction transfer table 4 moves to correct position by fixture 5, makes the end of sampling instrument 8 move to 0.8mm～1mm place, workpiece top, and locking wind, fixes the Z-direction position of sampling instrument; Opening ultrasonic-frequency power supply 14 makes sampling instrument produce the high-frequency resonant of vertical direction; Open the up stroke stop means of objective table, workpiece is slowly motion straight up contacting with the sampling instrument end in ultrasonic vibration just under the promotion of cylinder, make sampling instrument end produce high-frequency percussion to the upper surface of workpiece, continue to add a small amount of SiC lapping liquid at the shock zone place of sampling instrument and surface of the work, by the dither of sampling instrument, strengthen the ablation of SiC abrasive grains; The lasting ablation to rock surface along with sampling instrument and SiC abrasive particle, workpiece continues rising under the promotion of cylinder, until sampling instrument passes workpiece and comes in contact with backing plate; Regulate two five-way electromagnetic valves to make airflow-reversing, workpiece, along with the piston of cylinder is done motion straight down, departs from sampling instrument; The dither that keeps sampling instrument, the rock sample obtaining will naturally come off in sampling instrument, can complete whole rock sampling process.
Claims (10)
1. a ultrasonic auxiliary rock sampler, it is characterized in that, comprise bracing frame, ultrasonic vibration system, sampling instrument and pneumatic element, described bracing frame comprises that base, Z-direction transfer table and XY are to transfer table, XY is fixed on the center of base top surface to transfer table, Z-direction transfer table is fixed on base top surface, with XY to the adjacent setting of transfer table; Described ultrasonic vibration system is fixed on the Z-direction transfer table of bracing frame by fixture, wind on Z-direction transfer table drives fixture in the vertical direction to move, ultrasonic vibration system is connected with described sampling instrument, drives sampling instrument to realize dither at vertical direction; Described pneumatic element is fixed on the XY of bracing frame to the center of transfer table, and pneumatic element is connected with objective table, drives objective table to move up and down in the flexibility of vertical direction.
2. a kind of ultrasonic auxiliary rock sampler according to claim 1, it is characterized in that, described ultrasonic vibration system comprises ultrasonic transducer, ultrasonic amplitude transformer and ultrasonic-frequency power supply, ultrasonic transducer top is connected with ultrasonic-frequency power supply, bottom centre position connects ultrasonic amplitude transformer by studs, ultrasonic amplitude transformer adopts and is threaded with sampling instrument, and ultrasonic transducer is fixed on the Z-direction transfer table of bracing frame by fixture.
3. a kind of ultrasonic auxiliary rock sampler according to claim 1, it is characterized in that, the lower end of described sampling instrument is the circular or square tubular structure of hollow, thickness of pipe is 0.5mm～1mm, sampling instrument upper end is that helicitic texture is connected with the end of ultrasonic amplitude transformer, and the material of sampling instrument is stainless steel.
4. a kind of ultrasonic auxiliary rock sampler according to claim 1, it is characterized in that, described pneumatic element comprises cylinder and pneumatic system, described cylinder is double acting compact cylinder, cylinder is vertically fixed on XY to the center of transfer table, and the piston rod in cylinder adopts and is threaded with the lower surface center of objective table; Described pneumatic system connects cylinder, for cylinder provides adjustable air pressure.
5. a kind of ultrasonic auxiliary rock sampler according to claim 4, it is characterized in that, described pneumatic system comprises pneumatic triple piece, source of the gas, solenoid valve and one-way throttle valve, source of the gas outlet connects pneumatic triple piece import by pipeline, pneumatic triple piece outlet is by the import of pipeline connected electromagnetic valve, two outlets of solenoid valve connect respectively an one-way throttle valve import, and the outlet of two one-way throttle valves is connected with the both ends open up and down of cylinder by pipeline respectively.
6. according to a kind of ultrasonic auxiliary rock sampler described in claim 4 or 5, it is characterized in that, the upper surface of described objective table is installed on backing plate, installs workpiece on backing plate, and objective table is also installed on up stroke stop means.
7. a kind of ultrasonic auxiliary rock sampler according to claim 5, is characterized in that, described solenoid valve is two five-way electromagnetic valves.
8. a kind of ultrasonic auxiliary rock sampler according to claim 1 and 2, it is characterized in that, between described Z-direction transfer table and base, be fixed with bolts, two right-angle sides of reinforcement are bolted with base top surface and the Z-direction transfer table back side respectively.
9. a kind of ultrasonic auxiliary rock sampler according to claim 1 and 2, is characterized in that, four jiaos of described base bottoms are provided with rubber pin, between rubber pin and base, are fixed with bolts.
10. adopt the method for one of the claims described a kind of ultrasonic auxiliary rock sampler, it is characterized in that, described workpiece is fixed on together with backing plate to the center of objective table, regulates XY to make workpiece in the horizontal direction in rational sample position to transfer table; Open source of the gas, regulate one-way throttle valve, two five-way electromagnetic valves and pneumatic triple piece to provide suitable air pressure for cylinder, make objective table under the promotion of cylinder, move to straight up reposefully the up stroke stop means place of objective table, the distance between this position and cylinder piston range is greater than the sampling thickness of workpiece; Wind by Z-direction transfer table moves to correct position by fixture, makes the end of sampling instrument move to 0.8mm～1mm place, workpiece top, and locking wind, fixes the Z-direction position of sampling instrument; Opening ultrasonic-frequency power supply makes sampling instrument produce the high-frequency resonant of vertical direction; Open the up stroke stop means of objective table, workpiece is slowly motion straight up contacting with the sampling instrument end in ultrasonic vibration just under the promotion of cylinder, make sampling instrument end produce high-frequency percussion to the upper surface of workpiece, continue to add a small amount of SiC lapping liquid at the shock zone place of sampling instrument and surface of the work, by the dither of sampling instrument, strengthen the ablation of SiC abrasive grains; The lasting ablation to rock surface along with sampling instrument and SiC abrasive particle, workpiece continues rising under the promotion of cylinder, until sampling instrument passes workpiece and comes in contact with backing plate; Regulate two five-way electromagnetic valves to make airflow-reversing, workpiece, along with the piston of cylinder is done motion straight down, departs from sampling instrument; The dither that keeps sampling instrument, the rock sample obtaining will naturally come off in sampling instrument, can complete whole rock sampling process.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106198093A (en) * | 2016-06-17 | 2016-12-07 | 中国地质大学（武汉） | A kind of modified model rotary ultrasonic rock sampler and method |
| CN106644569A (en) * | 2016-12-29 | 2017-05-10 | 贵州大学 | Fixed seat for shale rock sample coring and operation method of fixed seat |
| CN107917840A (en) * | 2017-09-29 | 2018-04-17 | 中国民航大学 | Mini-size self-control formula temperature fatigue testing machine |
| CN110095326A (en) * | 2019-05-06 | 2019-08-06 | 重庆大学 | Vertical pre- perforating system and pre-firing hole forming method in the drilling of cube protolith sample |
| CN110261199A (en) * | 2019-07-01 | 2019-09-20 | 重庆大学 | A kind of fine crack producing device and method of true rock sample |
| CN114878227A (en) * | 2022-07-08 | 2022-08-09 | 兰州城市学院 | Rock core drilling device for geological exploration |
| CN115014941A (en) * | 2022-06-02 | 2022-09-06 | 广东嘉元科技股份有限公司 | Copper foil online detection method and device suitable for single-opening detection mechanism |
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| CN115892704B (en) * | 2022-12-06 | 2024-05-10 | 中国地质大学（武汉） | Sampling gravel soil slide belt undisturbed sample transporter |
| CN116413065A (en) * | 2023-02-03 | 2023-07-11 | 内蒙古工业大学 | Granite automatic sampling and crushing device and method |
| CN116413065B (en) * | 2023-02-03 | 2024-06-21 | 内蒙古工业大学 | Granite automatic sampling and crushing device and method |
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