CN105328571B - A kind of gas-liquid-solid three-phase abrasive Flow Swirling Flow online observation method and device - Google Patents
A kind of gas-liquid-solid three-phase abrasive Flow Swirling Flow online observation method and device Download PDFInfo
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- CN105328571B CN105328571B CN201510760531.5A CN201510760531A CN105328571B CN 105328571 B CN105328571 B CN 105328571B CN 201510760531 A CN201510760531 A CN 201510760531A CN 105328571 B CN105328571 B CN 105328571B
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000007787 solid Substances 0.000 title abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 55
- 239000003595 mist Substances 0.000 claims abstract description 55
- 239000002245 particle Substances 0.000 claims abstract description 41
- 238000000917 particle-image velocimetry Methods 0.000 claims abstract description 32
- 238000004458 analytical method Methods 0.000 claims abstract description 14
- 238000002474 experimental method Methods 0.000 claims abstract description 7
- 238000011835 investigation Methods 0.000 claims abstract description 3
- 230000001052 transient effect Effects 0.000 claims abstract description 3
- 238000005498 polishing Methods 0.000 claims description 43
- 229920005479 Lucite® Polymers 0.000 claims description 4
- 239000007791 liquid phase Substances 0.000 claims description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 238000000691 measurement method Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 238000012795 verification Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004540 process dynamic Methods 0.000 claims 1
- 238000011160 research Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 4
- 239000012071 phase Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention discloses a kind of airwater mist cooling abrasive Flow Swirling Flow online observation method and device, in the research for gas-liquid-solid three-phase abrasive Flow Swirling Flow, to in Swirling Flow forming process abrasive particle and microbubble the characteristics of motion carry out theory analysis while, online experiment observation is carried out to it using particle image velocimetry method (PIV), related data and picture are extracted from PIV experiment equipment, the characteristics of motion of abrasive particle and microbubble in Swirling Flow forming process is intuitively showed, and realize the online observation of Swirling Flow forming process, the correctness of proof theory analysis, laid the foundation for the flow field characteristic and its control method of further investigation gas-liquid-solid three-phase abrasive Flow Swirling Flow.And there is provided a kind of device of airwater mist cooling abrasive Flow Swirling Flow online observation method.The present invention can realize the online observation in airwater mist cooling abrasive Flow Swirling Flow forming process, and noiseless, transient state, whole audience tachometric survey in Researches on Fluids can be achieved, and versatility is good.
Description
Technical field
The present invention relates to soft flow surface grinding/polishing field, in particular, it is related to a kind of airwater mist cooling mill
Grain stream Swirling Flow online observation method and device.
Background technology
In high-technology fields such as contemporary optics, electronic information and membrane sciences, it is necessary in precision optics part and function
Realize super smooth surface processing in crystalline material surface（Ultrasmooth Surface Manufacturing）, such as grenz ray
Optical system, laser gyro speculum, high-density wavelength division multiplexer, superlaser speculum, function optics, optical window
Deng.
Airwater mist cooling abrasive Flow polishing new method, using multidirectional method for implanting in polishing instrument and workpiece
Driving is formed in a kind of Swirling Flow of high velocity turbulent flow state, this Swirling Flow in the large area microspur gap formed between surface
Microbubble can be crumbled and fall by rights under the control of air entrainment and flow velocity, the process that crumbles and fall neighbouring abrasive particle is produced plus
Fast impetus, both common results cause the grain motion direction that larger randomness is presented, the abrasive particle and workpiece
Finished surface projection peak contact probability is greatly improved, while finished surface raised peak active force of the abrasive particle to the workpiece
Greatly improve, the efficiency of abrasive Flow polishing is thus greatly improved, and while polishing efficiency is improved, due to fluid
Flexible buffer characteristic, can avoid the hardness press-in of the abrasive particle from causing the working surface damnification of the workpiece.
At present, for the research of the airwater mist cooling abrasive Flow Swirling Flow, mainly with mathematical modeling theory analysis
It is Main Means with the simulation analysis based on various fluid dynamics softwares, and combines polishing experiment to come and theory analysis phase
Mutually checking, this research method is limited in that：(1) mathematical modeling theory analysis and the method for software emulation analysis, due to
The reason for error and boundary condition setting limitation, can not completely objective, accurately draw in the Swirling Flow abrasive particle and
The flow field characteristic such as microbubble movement locus and the characteristics of motion；(2) the polishing experiment generally implemented, typically all polishing adds
Work process is not visible, infers after machining by means such as workpiece surface roughness, microscopic appearance figures in polishing
Material Removal Mechanism.
The content of the invention
Analyze and test in research process it is an object of the invention to solve airwater mist cooling abrasive Flow Swirling Flow
A kind of the problem of method objective limitation, it is proposed that airwater mist cooling abrasive Flow Swirling Flow online observation method and device.
The present invention is achieved through the following technical solutions above-mentioned purpose：A kind of airwater mist cooling abrasive Flow Swirling Flow exists
Line observation procedure, comprises the following steps：
（1）In the large area microspur gap formed using multidirectional method for implanting between polishing instrument and workpiece surface
Driving forms a kind of multiphase flow Swirling Flow, i.e. airwater mist cooling abrasive Flow Swirling Flow；
（2）To step（1）Airwater mist cooling abrasive Flow Swirling Flow forming process in abrasive particle and microbubble motion
Rule carries out theory analysis；
（3）Using particle image velocimetry equipment using particle image velocimetry method to airwater mist cooling abrasive Flow Swirling Flow
Carry out online experiment observation, particle image velocimetry method is a kind of noiseless, transient state, whole audience speed measurement method, repeatedly shooting with
The position of abrasive particle in airwater mist cooling abrasive Flow Swirling Flow is recorded, and analyzes shooting image, so as to measure gas-liquid-solid three
The data message of the flowing velocity of phase abrasive Flow Swirling Flow, vorticity and tubulence energy；
（4）Related data and picture are extracted from particle image velocimetry equipment, by airwater mist cooling abrasive Flow eddy flow stream
The characteristics of motion of abrasive particle and microbubble is intuitively presented in the forming process of field；
（5）According to the online observation of the forming process of airwater mist cooling abrasive Flow Swirling Flow, verification step（2）Middle reason
By the correctness of analysis, base is established for the flow field characteristic and control method of further investigation airwater mist cooling abrasive Flow Swirling Flow
Plinth.
Further, the multidirectional method for implanting is will to be pre-mixed uniform airwater mist cooling by drive system to grind
Grain stream is injected into polishing instrument inner chamber at a certain angle with three directions, and the gas in subsequent polishing instrument inner chamber-
Method of the liquid-solid three-phase abrasive Flow in the process for entering large area microspur gap；Due to the spy of polishing tool interior runner
Different restraining structure, so as to form described airwater mist cooling abrasive Flow Swirling Flow in large area microspur gap.
Further, the abrasive particle is that particle diameter is spherical carbide silicon or alumina powder between 10um~100um
Grain.
Further, the microbubble is a diameter of micron order that microbubble generator is produced in the liquid phase by electrization
Other bubble.
Further, the liquid phase is water.
A kind of airwater mist cooling abrasive Flow Swirling Flow online observation device, including particle image velocimetry equipment, processing
Device, polishing instrument, workpiece, abrasive particle stream container and abrasive Flow efferent duct,
The particle image velocimetry equipment is arranged on the surface of polishing instrument, and gas-liquid-solid three are extracted for shooting
Phase abrasive Flow to form the image and data of airwater mist cooling abrasive Flow Swirling Flow process from being injected into；
The processor is electrically connected with particle image velocimetry equipment, and processor is used for gained in particle image velocimetry equipment
Image and data carry out Treatment Analysis, obtain abrasive particle and microbubble in airwater mist cooling abrasive Flow Swirling Flow forming process
Movement locus and the characteristics of motion；
The polishing instrument is the cylinder being made up of transparent lucite, and the side of cylinder is provided with three mills
Grain flows into loophole, and three abrasive Flow entrance ports connect abrasive particle stream container by abrasive Flow efferent duct respectively, and the inside of cylinder is set
Constrained runner, the internal structure surface of the cylinder also has transparent characteristic；
The workpiece is fixedly mounted in the abrasive particle stream container of the underface of the polishing instrument, and the workpiece is served as reasons
Cylindrical workpiece is made in transparent lucite, and the workpiece forms large area microspur gap with polishing instrument bottom surface；
Sealed process chamber, the abrasive particle stream container are formed between the polishing instrument and the abrasive particle stream container
It is provided with runner exit.
Further, the abrasive particle stream container includes bottom plate, two piece of first side plate, two piece of second side plate and top panel, institute
State top panel and be provided with the through hole that is engaged with the polishing instrument, bottom plate, two piece of first side plate, two piece of second side plate,
Top panel and polishing instrument are collectively forming uniform two groups of symmetrical streams on sealed process chamber, two piece of first side plate
Road is exported.
Further, every group of runner exit includes at least four runner exits.
Further, the particle image velocimetry equipment is particle image velocimetry method camera.
The beneficial effects of the present invention are：
1）Using particle image velocimetry method (PIV) airwater mist cooling abrasive Flow Swirling Flow shape is observed come real-time online
The characteristics of motion of abrasive particle and microbubble during, is showed Swirling Flow characteristic using objective technological means, so that
The conclusion that can be obtained with the analysis of theoretical or software emulation is contrasted, and finds more objective, accurate flow field characteristic.
2）Particle image velocimetry method (PIV) can intuitively show the movement locus of microbubble in abrasive Flow and abrasive particle
Come, so can intuitively see polishing mechanism of the abrasive particle in workpiece surface, further increase polishing effect
Visual and foresight, and then good directive significance can be provided for experiment.
Brief description of the drawings
Fig. 1 is the technical scheme flow of airwater mist cooling abrasive Flow Swirling Flow online observation method of the present invention
Figure.
Fig. 2 is the front view of airwater mist cooling abrasive Flow Swirling Flow online observation device of the present invention.
Fig. 3 is the partial sectional view of airwater mist cooling abrasive Flow Swirling Flow online observation device of the present invention.
Fig. 4 is the axonometric drawing of airwater mist cooling abrasive Flow Swirling Flow online observation device of the present invention.
In figure, 1- bottom plates, 2- runner exits, 3- fixing screws, 4- top panels, 5- polishings instrument, 6- process chambers,
7- particle image velocimetries equipment, 8- flow channel entry points, 9- workpiece, the side plates of 10- first, the side plates of 11- second.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 1 ~ 4, a kind of airwater mist cooling abrasive Flow Swirling Flow online observation method, its technical thought is：
Particle image velocimetry method camera in particle image velocimetry equipment is arranged on the surface of polishing instrument, in outside abrasive particle
Stream induction system will be pre-mixed uniform airwater mist cooling abrasive Flow and be noted from abrasive particle stream container by abrasive Flow efferent duct
Particle image velocimetry method camera starts shooting, collecting image and data when entering into polishing instrument, treats gas-liquid-solid three
Phase abrasive Flow, which is formed after stable airwater mist cooling abrasive Flow Swirling Flow, to be stopped shooting, and changes airwater mist cooling abrasive Flow
The proportioning of middle abrasive particle and microbubble, is repeatedly shot, and the processing and extraction of data are finally completed within a processor, carries out data
Contrast, finally show that one group can most illustrate that the abrasive particle and microbubble move rail in airwater mist cooling abrasive Flow Swirling Flow
The image data of mark and the characteristics of motion.
The device that a kind of airwater mist cooling abrasive Flow Swirling Flow online observation method is relied on, its constitute structure be：
A sealed abrasive particle fluid capacitance is fixedly mounted into top panel 4, the side plate 10 of bottom plate 1 and first, the second side plate 11 by fixing screws 3
Close be fitted together to immediately below polishing instrument 5, polishing instrument 5 is provided with device, the top panel 4 of abrasive Flow container top surface
Workpiece 9, forms large area microspur gap between the bottom surface of polishing instrument 5 and the upper surface of workpiece 9, the particle image velocimetry is set
Standby 7 are fixedly mounted on the surface of polishing instrument 5.First side plate 10 is provided with two groups of symmetrical runner exits 2, every group
Runner exit includes at least four runner exits 2.The flow channel entry point 8 in airwater mist cooling abrasive Flow polishing instrument
It is injected into processing inner chamber 6, is finally discharged from runner exit 2.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as
The technical scheme that can be realized without creative work on the basis of above-described embodiment, is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (6)
1. a kind of airwater mist cooling abrasive Flow Swirling Flow online observation method, it is characterised in that：Comprise the following steps：
（1）Driven in the large area microspur gap formed using multidirectional method for implanting between polishing instrument and workpiece surface
Form a kind of multiphase flow Swirling Flow, i.e. airwater mist cooling abrasive Flow Swirling Flow；The multidirectional method for implanting is by driving
Dynamic system will be pre-mixed uniform airwater mist cooling abrasive Flow and be injected into polishing work at a certain angle with three directions
Have in inner chamber, the airwater mist cooling abrasive Flow in subsequent polishing instrument inner chamber is entering the process in large area microspur gap
Method；Due to the special restraining structure of polishing tool interior runner, so as to be formed in large area microspur gap described
Airwater mist cooling abrasive Flow Swirling Flow；
（2）To step（1）Airwater mist cooling abrasive Flow Swirling Flow forming process in abrasive particle and microbubble the characteristics of motion
Carry out theory analysis；
（3）Airwater mist cooling abrasive Flow Swirling Flow is carried out using particle image velocimetry method using particle image velocimetry equipment
Online experiment is observed, and particle image velocimetry method is a kind of noiseless, transient state, whole audience speed measurement method, repeatedly images to record
The position of abrasive particle in airwater mist cooling abrasive Flow Swirling Flow, and shooting image is analyzed, so as to measure airwater mist cooling mill
Grain flows the data message of the flowing velocity, vorticity and tubulence energy of Swirling Flow；
（4）Change the proportioning of abrasive particle and microbubble in airwater mist cooling abrasive Flow, repeatedly shot；
（5）Related data and picture are extracted from particle image velocimetry equipment, by airwater mist cooling abrasive Flow Swirling Flow shape
The characteristics of motion of abrasive particle and microbubble is intuitively presented during；
（6）According to the online observation of the forming process of airwater mist cooling abrasive Flow Swirling Flow, verification step（2）Middle theoretical point
The correctness of analysis, lays the foundation for the flow field characteristic and control method of further investigation airwater mist cooling abrasive Flow Swirling Flow.
2. a kind of airwater mist cooling abrasive Flow Swirling Flow online observation method according to claim 1, its feature exists
In：The abrasive particle is that particle diameter is spherical carbide silicon or alumina powder particle between 10um~100um.
3. a kind of airwater mist cooling abrasive Flow Swirling Flow online observation method according to claim 1, its feature exists
In：The microbubble is the bubble for a diameter of micron level that microbubble generator is produced in the liquid phase by electrization.
4. a kind of airwater mist cooling abrasive Flow Swirling Flow online observation method according to claim 1, its feature exists
In：Further, the liquid phase is water.
5. a kind of airwater mist cooling abrasive Flow Swirling Flow online observation device, it is characterised in that：Including particle image velocimetry
Equipment, processor, polishing instrument, workpiece, abrasive particle stream container and abrasive Flow efferent duct；
The particle image velocimetry equipment is arranged on the surface of polishing instrument, and airwater mist cooling mill is extracted for shooting
Grain stream is from being injected into the image and data to form airwater mist cooling abrasive Flow Swirling Flow process；
The processor is electrically connected with particle image velocimetry equipment, and processor is used for the figure to gained in particle image velocimetry equipment
Picture and data carry out Treatment Analysis, obtain the fortune of abrasive particle and microbubble in airwater mist cooling abrasive Flow Swirling Flow forming process
Dynamic rail mark and the characteristics of motion；
The polishing instrument is the cylinder being made up of transparent lucite, and the side of cylinder is provided with three abrasive Flows
Entrance port, three abrasive Flow entrance ports connect abrasive particle stream container by abrasive Flow efferent duct respectively, and the inside of cylinder is provided with about
Line road, the internal structure surface of the cylinder also has transparent characteristic；
The workpiece is fixedly mounted in the abrasive particle stream container of the underface of the polishing instrument, and the workpiece is by transparent
Lucite be made cylindrical workpiece, the workpiece forms large area microspur gap with polishing instrument bottom surface；
Formed and set on sealed process chamber, the abrasive particle stream container between the polishing instrument and the abrasive particle stream container
There is runner exit；
The abrasive particle stream container includes bottom plate, two piece of first side plate, two piece of second side plate and top panel, and the top panel is provided with
The through hole being engaged with the polishing instrument, bottom plate, two piece of first side plate, two piece of second side plate, top panel and polishing plus
Work instrument is collectively forming uniform two groups of symmetrical runner exits on sealed process chamber, two piece of first side plate；Every group of stream
Road outlet includes at least four runner exits.
6. a kind of airwater mist cooling abrasive Flow Swirling Flow online observation device according to claim 5, its feature exists
In：The particle image velocimetry equipment is particle image velocimetry method camera.
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| CN201510760531.5A CN105328571B (en) | 2015-11-10 | 2015-11-10 | A kind of gas-liquid-solid three-phase abrasive Flow Swirling Flow online observation method and device |
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| CN105890870B (en) * | 2016-03-31 | 2018-06-01 | 浙江工业大学 | A kind of conflux vortex aspirates formation mechenism observation experiment platform |
| CN106002500B (en) * | 2016-04-28 | 2017-12-08 | 浙江工业大学 | One kind supercharging ultrasonic cavitation three-phase abrasive Flow eddy flow polishing processing device |
| CN106392864B (en) * | 2016-11-22 | 2018-05-18 | 太原理工大学 | Viscoelastic fluid abrasive particle two phase flow abrasive particle sliding velocity measuring device and its measuring method |
| CN106645791B (en) * | 2017-02-13 | 2019-03-22 | 常州大学 | It tests the speed experimental provision suitable for the orifice jet under the conditions of multi- scenarios method |
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| CN102528661A (en) * | 2011-11-10 | 2012-07-04 | 浙江工业大学 | Observation method for fluid precision finishing of surfaces of micro-structures of molds |
| CN204525122U (en) * | 2015-02-03 | 2015-08-05 | 浙江工业大学 | A kind of super-smooth surface fluid polishing device based on gas-liquid-solid three-phase abrasive Flow |
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| US7542036B2 (en) * | 2003-02-19 | 2009-06-02 | California Institute Of Technology | Level set surface editing operators |
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|---|---|---|---|---|
| CN102528661A (en) * | 2011-11-10 | 2012-07-04 | 浙江工业大学 | Observation method for fluid precision finishing of surfaces of micro-structures of molds |
| CN204525122U (en) * | 2015-02-03 | 2015-08-05 | 浙江工业大学 | A kind of super-smooth surface fluid polishing device based on gas-liquid-solid three-phase abrasive Flow |
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Denomination of invention: An online observation method and device for the swirling flow field of gas-liquid-solid three-phase abrasive flow Granted publication date: 20170926 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. Xinghai branch Pledgor: WEIHAI ZHENGHAO MINING EQUIPMENT CO.,LTD. Registration number: Y2024980003177 |
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