CN104786154B - A kind of ultrasonic cavitation bubble aids in fluid polishing processing method and device - Google Patents
A kind of ultrasonic cavitation bubble aids in fluid polishing processing method and device Download PDFInfo
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- CN104786154B CN104786154B CN201510056395.1A CN201510056395A CN104786154B CN 104786154 B CN104786154 B CN 104786154B CN 201510056395 A CN201510056395 A CN 201510056395A CN 104786154 B CN104786154 B CN 104786154B
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- Prior art keywords
- ultrasonic
- abrasive flow
- micro
- phase abrasive
- phase
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Abstract
The invention discloses a kind of ultrasonic cavitation bubble auxiliary fluid polishing processing method and device, ultrasonic generator is vertically mounted on the top of two-phase abrasive Flow runner, using cavitation effect is produced in abrasive Flow of the ultrasonic wave in above-mentioned two-phase abrasive Flow runner, so as to empty verbiage produces micro-dimension bubble at the emitting facet of ultrasonic generator；Micro-dimension bubble leaves emitting facet and travels forward under the pressure effect that ultrasonic wave is produced, when the workpiece near wall immediately below above-mentioned emitting facet is moved to, the compression of above-mentioned ultrasonic wave can make the generation of micro-dimension bubble crumble and fall, micro-dimension bubble can produce a kind of micro laser wave when crumbling and fall, micro laser wave causes that regional area produces very big pressure so as to produce micro-explosion to act in abrasive Flow, accelerate impetus downwards so as to the abrasive particle to surrounding is produced, and then increase substantially the contact probability and active force of two-phase abrasive Flow and workpiece machining surface projection peak, thus the efficiency of two-phase abrasive Flow polishing is increased substantially.
Description
Technical field
The present invention relates to soft flow surface grinding and polishing field, in particular, it is related to a kind of ultrasonic cavitation bubble
Auxiliary fluid polishing processing 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 (Ultrasmooth Surface Manufacturing), such as grenz ray in crystalline material surface
Optical system, laser gyro speculum, high-density wavelength division multiplexer, superlaser speculum, function optics, optical window
Deng.
Early stage occur liquid-solid two-phase soft abrasive fluid polishing be the turbulent flow with abrasive Flow as theoretical foundation, with abrasive particle
Between mutual collision and the collision between abrasive particle and wall based on, dynamic analysis is carried out to abrasive particle, using Turbulent Flow Field
Shear action of the middle abrasive particle to wall, the coarse place of wall to workpiece carries out precise polished processing.
Gas-liquid-solid three-phase abrasive Flow polishing processing method is that micro-dimension bubble is uniformly mixed into liquid in certain proportion to consolidate
The novel fluid polishing medium formed in two-phase abrasive Flow, forms turbulent flow, using gas therein in processing workpiece surface
The microburst mechanism for steeping generation of crumbling and fall promotes the more efficient as-machined workpiece surface of abrasive particle, reaches efficiently workpiece is polished
Effect.
At present, the runner used by liquid-solid two-phase abrasive Flow polishing is by the way of single entry, single outlet, and fluid is from stream
The entrance in road is flowed into, outlet outflow, is finally back to abrasive Flow storage bin.According to the process principle of two-phase abrasive Flow, to workpiece
The abrasive Flow being processed necessarily be formed turbulent flow in runner, in turbulent flow, the randomness of grain motion be conducive to surface without
Sequence, until realizing workpiece surface without instrument minute surface level processing effect.Experimental status based on early stage, simple single input output
Processing flow channel have the following disadvantages：1. when the pressure or relatively low flow of booster pump, the liquid-solid two-phase of booster pump output
The flow velocity of abrasive Flow can not reach the minimum speed of turbulization, cause the abrasive Flow in abrasive particle runner to be in laminar condition, enter
And causing the abrasive particle in abrasive Flow very low to the cutting probability of workpiece surface, processing effect is not obvious；2. booster pump exports abrasive particle
The flow velocity of stream has reached the minimum speed that turbulent flow is formed in runner, and because processing flow channel is more long, energy is damaged in flow process
Lose, tubulence energy declines, and causes work pieces process effect uneven.
The content of the invention
It is obvious or uneven to workpiece polishing effect in existing experimentation it is an object of the invention to solve the problems, such as,
Propose a kind of ultrasonic cavitation bubble auxiliary fluid polishing processing method and device.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of ultrasonic cavitation bubble aids in fluid polishing processing method, for ultrasonic applications to two-phase abrasive Flow to be thrown
In light processing, comprise the following steps：Ultrasonic generator is vertically mounted on the top of two-phase abrasive Flow runner, using ultrasound
The ultrasonic wave of wave generating device transmitting produces cavitation effect in the abrasive Flow in above-mentioned two-phase abrasive Flow runner, so as in ultrasound
Empty verbiage produces micro-dimension bubble at the emitting facet of wave generating device；Micro-dimension bubble under the effect of pressure that ultrasonic wave is produced from
Emitting facet is opened to travel forward, it is above-mentioned super during workpiece near wall immediately below micro-dimension bubble motion to above-mentioned emitting facet
The compression of sound wave can make the generation of micro-dimension bubble crumble and fall, and a kind of micro laser wave can be produced when micro-dimension bubble is crumbled and fall, micro- to swash
Ripple causes that regional area produces very big pressure so as to produce micro-explosion to act in abrasive Flow, and acts on right by micro-explosion
Abrasive particle around micro-dimension bubble is produced and accelerates impetus downwards, and then increases substantially two-phase abrasive Flow and work pieces process table
The contact probability and active force at face projection peak, thus increase substantially the efficiency of two-phase abrasive Flow polishing.
Further, the ultrasonic frequency of the ultrasonic generator transmitting is 20KHz, and power is 1KW.
Further, the power and frequency of the reverse ultrasonic wave are artificially controlled by external circuitses and control system
System, and then micro-dimension bubble can be improved near workpiece with the speed that crumbles and fall of the micro-dimension bubble in manual control three-phase abrasive Flow
Probability of crumbling and fall at finished surface.Can further prevent micro-dimension bubble crumble and fall generation active force it is excessive or too small when make work
Part surface breakdown or processing efficiency are low, so as to improve micro-dimension bubble crumble and fall to the beneficial effect processed.
A kind of ultrasonic cavitation bubble aids in fluid polishing processing device, including ultrasonic generator, planar rondure to live
Plug emitting head, fixed flange, two-phase abrasive Flow runner, flow passage cover plate, disk and base are tightly connected, two-phase abrasive Flow runner
It is fixed on base, flow passage cover plate is fixed on two-phase abrasive Flow runner, the outlet of two-phase abrasive Flow runner and porch are all provided with
There is screwed pipe, be provided with two-phase abrasive Flow runner and the groove with polishing workpiece is installed；The ultrasonic generator and the bottom
Seat right angle setting, two-phase abrasive Flow runner is located at the underface of ultrasonic generator；The ultrasonic generator connection is flat
Face circular piston formula emitting head, the planar rondure piston type emitting head is described super by being tightly connected disk connecting passage cover plate
Sound wave generating device is entered in two-phase abrasive Flow runner ultrasonic wave Vertical Launch by planar rondure piston type emitting head；It is described
Ultrasonic generator is fixed on base by fixed flange.
Further, the fixed flange is fixed on base by fixture.
Further, it is described to be tightly connected disk and flow passage cover plate is tightly connected by O-ring seal.
Further, the ultrasonic transducer is frequency by the ultrasonic wave that planar rondure piston type emitting head is launched
The elastic mechanical vibration wave that rate is 20KHz, power is 1KW.The meeting during three-phase abrasive Flow Propagation of above-mentioned ultrasonic wave
Compression is produced to solid therein or cavitation bubble, cavitation bubble may crumble and fall in compression process, meeting when it is crumbled and fall
A kind of and angled reverse micro laser wave of three-phase abrasive Flow is produced, makes regional area have very big pressure micro- so as to produce
See detonation.
Further, the two-phase abrasive Flow is the polishing fluids medium being uniformly mixed by abrasive particle and water, its abrasive particle
Optimal proportion be 15%, abrasive particulate material is carborundum.
Further, the two-phase abrasive Flow is the polishing fluids medium being uniformly mixed by abrasive particle and light oil, its
The optimal proportion of abrasive particle is 15%, and abrasive particulate material is alumina particle.
Further, the fixed flange includes stamper and sub-disk, and modeling is provided between sub-disk and ultrasonic transducer
Backing strap piece, is provided with rubber shock-absorbing packing ring between stamper and ultrasonic transducer.It is big by plastic spacer and rubber shock-absorbing packing ring
Amplitude reduces the transmission loss of ultrasonic wave, and then ensures the integrality of ultrasonic transducer output ultrasonic wave.
The beneficial effects of the present invention are：
1) by frequency be 20KHz, power for 1KW is applied in abrasive Flow polishing, ultrasonic wave is in fluid media (medium)
Promote micro-dimension bubble to crumble and fall and then produce the effect that micro-explosion is acted on to be applied in abrasive Flow polishing, micro-explosion is made
With the abrasive particle for accelerating to promote two-phase abrasive Flow to the cutting effect of workpiece, the polishing efficiency of two-phase abrasive Flow is increased substantially.
2) processing is polished to processing workpiece surface repeatedly in polishing system using two-phase abrasive Flow, two can be improved
The utilization ratio of phase abrasive Flow, it is possible to which effectively filtering processing residue realizes cleaning processing to reduce sewage discharge, saves energy
Source, environmental protection.
Brief description of the drawings
Fig. 1 is the schematic flow sheet that a kind of ultrasonic cavitation bubble of the invention aids in fluid polishing processing method.
Fig. 2 is the structural representation that a kind of ultrasonic cavitation bubble of the invention aids in fluid polishing processing device.
Fig. 3 is the ultrasonic transformer and fixed flange assembling structure sectional view of ultrasonic generator.
Fig. 4 is abrasive Flow runner and planar rondure piston type emitting head assembling structure sectional view.
In figure, 1- bases, 2- screwed pipes, 3- fixtures, 4- planar rondure piston types emitting head, 5- sub-disks, 6- stampers, 7- pressures
Electroceramics element, 8- electrode members, 9- pretightning forces screw, 10- upper holder blocks, 11- lower lock blocks, 12- ultrasonic transformers, 13- flow passage cover plates,
14- two-phase abrasive Flows runner, 15- workpiece, 16- micro-dimensions bubble, 17- abrasive particles, 18-O types sealing ring, 19- plastic spacers, 20-
Rubber shock-absorbing packing ring.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
Referring to the drawings 1~4, a kind of ultrasonic cavitation bubble aids in fluid polishing processing method, for by ultrasonic applications
To in two-phase abrasive Flow polishing, it is characterised in that：Comprise the following steps：Ultrasonic generator is vertically mounted on two-phase
The top of abrasive Flow runner 14, using mill of the ultrasonic wave of ultrasonic generator transmitting in above-mentioned two-phase abrasive Flow runner 14
Cavitation effect is produced in grain stream, so as to empty verbiage produces micro-dimension bubble 16 at the emitting facet of ultrasonic generator；Micro- chi
Very little bubble 16 leaves emitting facet and travels forward under the effect of pressure that ultrasonic wave is produced, when micro-dimension bubble 16 move to it is above-mentioned
During 15 near wall of workpiece immediately below emitting facet, the compression of above-mentioned ultrasonic wave can produce micro-dimension bubble 16 to burst
Go out, a kind of micro laser wave, micro laser wave can be produced to cause that regional area produces very big pressure in abrasive Flow when micro-dimension bubble 16 is crumbled and fall
By force so as to produce micro-explosion to act on, and downward adding, is produced to the abrasive particle 17 around micro-dimension bubble 16 by micro-explosion effect
Fast impetus, and then the contact probability and active force of two-phase abrasive Flow and the finished surface of workpiece 15 projection peak are increased substantially,
Thus the efficiency of two-phase abrasive Flow polishing is increased substantially.
From the screwed pipe 2 in polishing processing device to liquid of the injection in turbulence state solid two in two-phase abrasive Flow runner 14
Phase abrasive Flow, while opening ultrasonic generator, adjusting the ultrasonic transducer using external circuitses and control system sends out
The power and frequency of ultrasonic wave are penetrated, workpiece is taken out after continuous firing certain hour and is measured, draw processing effect conclusion.Its
In, under the regulation of external circuitses and control system, with reference to the processing effect that measurement workpiece draws, many experiments make ultrasonic wave
Reach the effect for most preferably accelerating the micro-dimension bubble 16 in the gas-liquid-solid two-phase abrasive Flow to crumble and fall speed, Optimal Experimental scheme,
Finally draft experiment processing technology.
The power and frequency of the reverse ultrasonic wave carry out manual control by external circuitses and control system, and then can be with
The speed that crumbles and fall of the micro-dimension bubble 16 in manual control two-phase abrasive Flow runner 14, improves micro-dimension bubble 16 and adds near workpiece
Probability of crumbling and fall at work surface.
The ultrasonic frequency of the ultrasonic generator transmitting is 20KHz, and power is 1KW.
A kind of ultrasonic cavitation bubble aids in fluid polishing processing device, including ultrasonic generator, planar rondure to live
Plug emitting head 4, fixed flange, two-phase abrasive Flow runner 14, flow passage cover plate 13, it is tightly connected disk and base 1, two-phase abrasive particle
Stream runner 14 is fixed on base 1, and flow passage cover plate 13 is fixed on two-phase abrasive Flow runner 14, and two-phase abrasive Flow runner 14 goes out
Mouth and porch are equipped with to be provided with screwed pipe 2, two-phase abrasive Flow runner 14 installs the groove with polishing workpiece 15；The ultrasound
Wave generating device and the right angle setting of the base 1, two-phase abrasive Flow runner 14 are located at the underface of ultrasonic generator；It is described
Ultrasonic generator connection planar rondure piston type emitting head 4, the planar rondure piston type emitting head 4 is by being tightly connected
Disk connecting passage cover plate 13, the ultrasonic generator passes through planar rondure piston type emitting head 4 by ultrasonic wave Vertical Launch
Into in two-phase abrasive Flow runner 14；The ultrasonic generator is fixed on base 1 by fixed flange.Institute's fixation
Blue disk is fixed on base 1 by fixture 3.It is described to be tightly connected disk and flow passage cover plate 13 is tightly connected by O-ring seal 18.
The supersonic generator includes ultrasonic transformer 12, lower lock block 11, piezo ceramic element 7, electrode member 8, pretightning force
Screw 9 and upper holder block 10, lower lock block 11 and upper holder block 10 are located at the two ends of piezo ceramic element 7 and are entered by pretightning force bolt 9
Row is fixed, the connection piezo ceramic element 7 of electrode member 8, and one end of lower lock block 11 connects planar rondure piston by ultrasonic transformer 12
Formula emitting head 4, fixed flange is fixed on ultrasonic transformer 12.
The ultrasonic wave that the ultrasonic transducer is launched by planar rondure piston type emitting head 4 is for frequency is
20KHz, power are the elastic mechanical vibration wave of 1KW.
Two-phase abrasive Flow is the polishing fluids medium being uniformly mixed according to a certain percentage by abrasive particle and water or light oil,
The optimal proportion of its abrasive particle is 15%, and abrasive particulate material is carborundum or alumina particle.
The fixed flange includes stamper 6 and sub-disk 5, and plastic spacer is provided between sub-disk 5 and ultrasonic transducer
19, rubber shock-absorbing packing ring 18 is installed between stamper 6 and ultrasonic transducer.By plastic spacer 19 and rubber shock-absorbing packing ring 20
The transmission loss of ultrasonic wave is greatly reduced, and then ensures the integrality of ultrasonic transducer output ultrasonic wave.
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
Without the technical scheme that creative work can be realized on the basis of above-described embodiment, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (4)
1. a kind of ultrasonic cavitation bubble aids in fluid polishing processing device, it is characterised in that：Including ultrasonic generator, put down
Face circular piston formula emitting head (4), fixed flange, two-phase abrasive Flow runner (14), flow passage cover plate (13), be tightly connected disk and
Base (1), two-phase abrasive Flow runner (14) is fixed on base (1), and flow passage cover plate (13) is fixed on two-phase abrasive Flow runner
(14) on, the outlet of two-phase abrasive Flow runner (14) and porch are equipped with screwed pipe (2), two-phase abrasive Flow runner (14) and set
There is the groove for installing polished workpiece (15)；The ultrasonic generator and the base (1) right angle setting, two-phase abrasive Flow
Runner (14) is positioned at the underface of ultrasonic generator；The ultrasonic generator connects planar rondure piston type emitting head
(4), the planar rondure piston type emitting head (4) occurs by being tightly connected disk connecting passage cover plate (13), the ultrasonic wave
Device is entered in two-phase abrasive Flow runner (14) ultrasonic wave Vertical Launch by planar rondure piston type emitting head (4)；It is described
Ultrasonic generator is fixed on base (1) by fixed flange.
2. a kind of ultrasonic cavitation bubble according to claim 1 aids in fluid polishing processing device, it is characterised in that：Institute
Fixed flange is stated to be fixed on base (1) by fixture (3).
3. a kind of ultrasonic cavitation bubble according to claim 1 aids in fluid polishing processing device, it is characterised in that：Institute
State and be tightly connected disk and flow passage cover plate (13) is tightly connected by O-ring seal (18).
4. a kind of ultrasonic cavitation bubble according to claim 1 aids in fluid polishing processing device, it is characterised in that：Institute
Stating fixed flange includes stamper (6) and sub-disk (5), and sub-disk (5) is provided with plastic spacer (19) and ultrasonic transducer between,
Stamper (6) is provided with rubber shock-absorbing packing ring (20) and ultrasonic transducer between.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510056395.1A CN104786154B (en) | 2015-02-03 | 2015-02-03 | A kind of ultrasonic cavitation bubble aids in fluid polishing processing method and device |
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| CN201510056395.1A CN104786154B (en) | 2015-02-03 | 2015-02-03 | A kind of ultrasonic cavitation bubble aids in fluid polishing processing method and device |
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| CN104786154A CN104786154A (en) | 2015-07-22 |
| CN104786154B true CN104786154B (en) | 2017-07-07 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999379B (en) * | 2015-07-23 | 2017-09-05 | 长春理工大学 | A kind of abrasive Flow micropore polishing processing device |
| CN105866126B (en) * | 2016-04-28 | 2019-02-22 | 浙江工业大学 | A kind of multiphase flow near-wall effect real-time monitoring device |
| CN107877394B (en) * | 2017-10-19 | 2023-07-14 | 浙江工业大学 | Gas-liquid-solid three-phase abrasive particle flow surface polishing system based on cavitation effect |
| CN108214276B (en) * | 2018-03-26 | 2020-04-24 | 哈尔滨工业大学 | High-frequency three-phase flow polishing and deburring device |
| CN108581816B (en) * | 2018-04-02 | 2021-02-26 | 浙江工业大学 | Three-phase flow dynamic pressure cavitation polishing method and device |
| CN108581817B (en) * | 2018-04-02 | 2020-11-27 | 浙江工业大学 | Method and device for Fenton-assisted three-phase flow hydrodynamic cavitation polishing of SiC optical curved surface |
| CN110039380B (en) * | 2019-04-11 | 2020-12-01 | 上海理工大学 | Magnetic composite fluid polishing device for polishing periodic micro-groove structure |
| CN110405620B (en) * | 2019-05-24 | 2021-02-26 | 浙江工业大学 | High-precision homogenizing polishing device based on micro-nano gas phase and Lorentz force |
| CN114473880A (en) * | 2022-01-18 | 2022-05-13 | 浙江大学 | Ultrasonic-assisted fluid cavitation grinding equipment |
Family Cites Families (3)
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| US6347984B1 (en) * | 2000-10-30 | 2002-02-19 | Barry Boaz Groman | Micro abrasive blasting device and method |
| CN101670556B (en) * | 2009-10-23 | 2011-01-05 | 哈尔滨工业大学 | Dynamic pressure cavitation jet polishing device of colloidal flow and method |
| CN204525192U (en) * | 2015-02-03 | 2015-08-05 | 浙江工业大学 | A kind of ultrasonic cavitation bubble auxiliary fluid polishing processing device |
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Effective date of registration: 20191118 Address after: 242000 Meixi Road and Wolong Lane Intersection of Feichuan Office in Xuancheng City, Anhui Province Patentee after: Xuancheng Youdu Technology Service Co.,Ltd. Address before: 313000 Room 1403, 14th Floor, Building B, Freeport, Headquarters 1188 District Fulu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee before: Zhejiang creation Intellectual Property Service Co.,Ltd. Effective date of registration: 20191118 Address after: 313000 Room 1403, 14th Floor, Building B, Freeport, Headquarters 1188 District Fulu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Zhejiang creation Intellectual Property Service Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310014 City Zhaohui District Six Patentee before: Zhejiang University of Technology |