CN101837571A - Three-dimensional polishing wheel with controllable magnetic rheology - Google Patents
Three-dimensional polishing wheel with controllable magnetic rheology Download PDFInfo
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- CN101837571A CN101837571A CN 201010185128 CN201010185128A CN101837571A CN 101837571 A CN101837571 A CN 101837571A CN 201010185128 CN201010185128 CN 201010185128 CN 201010185128 A CN201010185128 A CN 201010185128A CN 101837571 A CN101837571 A CN 101837571A
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Abstract
The invention provides a three-dimensional polishing wheel with controllable magnetic rheology, and relates to a polishing tool, in particular to a three-dimensional polishing wheel with controllable magnetic rheology which can achieve carrying out ultra-precise polishing on various optical components. The polishing wheel is provided with a drive motor, a motor gear, an annular gear, a polishing disk, a bearing, magnetic cores, coils, sleeves and a supporting axle. The drive motor is fixed on the supporting axle; the lead wire of the drive motor leads out an external power supply through a lead wire through hole arranged on the supporting axle; the motor gear is fixed on the drive motor; the annular gear and the magnetic cores are connected together and sheathed on the supporting axle to rotate around the supporting axle; the drive motor drives the annular gear to rotate; the motor gear is meshed with the annular gear so as to rotate the magnetic cores; the magnetic cores are axially distributed on the supporting axle and are positioned by the sleeves; the polishing disk is of a vertical hollow shell structure with a thin top part and two thick side parts; and the polishing disk is connected with the supporting axle through the bearing, and the coils are arranged in the magnetic cores.
Description
Technical field
The present invention relates to a kind of polishing tool, especially relate to a kind of three-dimensional polishing wheel with controllable magnetic rheology of ultraprecise aspherical mirror machining instrument.
Background technology
In recent years, along with science and technology development, more and more urgent to the demand of high performance aspheric surface part.Grow with each passing day in of the requirement of numerous areas such as laser fusion, Aeronautics and Astronautics, interplanetary probe, military surveillance and color picture tube manufacturing industry, considerably beyond the manufacturing production capacity of traditional optical to the aspherics parts.Processing for an aspheric surface optical accessory generally will be shaped through corase grind, several stages such as correct grinding and polishing, and the surface quality of final optics is by the polishing decision, and therefore polishing is most important operation.
Traditional polishing technology is when polishing, at the residual breakable layer of surface of the work, polishing for irregular curved surface also has very big shortcoming, and magnetorheological polishing is to utilize the phase-change characteristic of magnetic flow liquid to polish, belong to flexible polishing, can be at the residual breakable layer of its surface of the work, and working (machining) efficiency especially more can embody its superiority than higher when irregular curved surface is polished.Two preconditions that it can carry out smoothly: one provides the gradient magnetic that is suitable for magnetorheological polishing, and the 2nd, make Magnetorheologicai polishing liquid with good rheological characteristic.
The applicant provides a kind of polishing wheel with parameter adjustable type magnetic rheology simple in structure in the patent of invention of notification number for CN1915591.Be provided with drive motors, gear train, polishing disk, bearing, magnetic core, coil, guide bracket, screw mandrel group, micromachine group, bearing, needle bearing and back shaft.Motor is located on the bearing, gear train is separately fixed on drive motors and the back shaft, polishing disk and back shaft connect, magnetic core is made up of over against placing 2 disc-shaped magnet, leaves the space between 2 disc-shaped magnet, and every disc-shaped magnet is made up of the magnet that at least 2 sizes equate, the number of micromachine and screw mandrel equates with magnet numbers, inside, magnetic core lower end is installed with screw mandrel respectively and is fixed on each guide bracket, and guide bracket and bearing guide rail link, and coil is located in the magnetic core; Connect the external machine tool component of back shaft between bearing and the back shaft by needle bearing.
Summary of the invention
The object of the present invention is to provide a kind of Ultraprecise polished three-dimensional polishing wheel with controllable magnetic rheology of realizing various optical element.
The present invention is provided with drive motors, motor gear, ring gear, polishing disk, bearing, magnetic core, coil, sleeve and bolster.
Drive motors is fixed on the bolster, the lead-in wire of drive motors is drawn external power supply by the wire through-hole of being located on the bolster, motor gear is fixed on the drive motors, ring gear is connected with magnetic core and is enclosed within on the bolster and rotates around bolster, drive motors drives ring gear and rotates, motor gear and ring gear engagement make magnetic core rotate, each magnetic core distributes at bolster upper edge axis, locate by sleeve between each magnetic core, polishing disk is a top thin, the vertical hollow housing structure that both sides are thick, polishing disk connects with bolster by bearing, and coil places in the magnetic core.
Described bolster is the hollow type bolster, and described ring gear can be connected by hold-down screw with fan-shaped magnetic core, and described magnetic core can be fan-shaped magnetic core, can be provided with 4 little magnetic cores on each magnetic core; The both sides of described magnetic core can be located by circlip; The lead of described coil is drawn external power supply by the wire through-hole of being located on the bolster.
Compare with existing polishing wheel, the present invention has following outstanding advantage:
1) the three-dimensional magnetic line of force.The adjustable scope of magnetic core air gap of this polishing wheel is very big, owing to can be provided with 6 magnetic cores, can form nearly 720 kinds of combinations of gaps.Owing on the fan-shaped magnetic core air gap is arranged also, promptly on both direction, all there is the magnetic line of force again, therefore formed the magnetic line of force of space multistory, can satisfy the needs of the optical element polishing of different size and shape.
2) controllability height, the working (machining) efficiency height.By parameters such as control size of electric current and frequencies, can accurately control the hardness and the shape of bistrique, can realize point-to-point processing at the shape of optical element, can improve working (machining) efficiency greatly.
3) polishing precision height.Magnetorheological polishing is to utilize the phase-change characteristic of magnetic flow liquid to polish, and belongs to flexible polishing, can not guarantee high-quality precision at the residual breakable layer of its surface of the work.
4) processing stability height.Because of adopting direct current,, can keep constant magnetic field so can not produce magnetic hystersis loss and eddy-current loss to coil electricity; Have only polishing disk to drive magnetic rheological body rotation polishing simultaneously in the polishing, and internal structure is maintained fixed, thereby guarantees to compare advantages of higher stability in the processing.
5) simple to operate.Be easy to cooperate, easily operation with lathe.
This shows, utilize the present invention that the high accuracy non-spherical surface is polished, can effectively process the surface of ultra-smooth.
Description of drawings
Fig. 1 is that the structure of the embodiment of the invention is formed generalized section.
Fig. 2 is the drive motors distribution map of the embodiment of the invention.
Fig. 3 is the fan-shaped magnetic core and the ring gear structural representation of the embodiment of the invention.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
Referring to Fig. 1～3, the basic structure of the embodiment of the invention is provided with bearing 1, drive motors 2, motor gear 3, polishing disk 4, magnetic core 5, sector (-shaped) coil 6, sleeve 7, ring gear 8, circlip 9, wire through-hole 10, bolster 11 and hold-down screw 12 etc.Drive motors 2 is fixed on the bolster 11, and the lead-in wire of drive motors 2 is drawn external power supply by the wire through-hole of being located on the bolster 11 10.Ring gear 8 is linked together by hold-down screw 12 with fan-shaped magnetic core 5 becomes an integral body, be enclosed within then on the bolster 11, can rotate around bolster 11, drive motors 2 drives motor gear 3, motor gear 3 makes fan-shaped magnetic core 5 rotate with ring gear 8 engagements, because magnetic core has 6, and every fan-shaped magnetic core has the little magnetic core of 4 fritters again, just formed multiple air gap.Magnetic core 5 adopts soft magnetic materials to make.Polishing disk 4 is a top thin, the vertical hollow housing structure that both sides are thick, and its top selects for use non-magnetic material to make, and magnetic rheological body adheres on it in the polishing, and both sides are thicker, adopt magnetic shielding material to make, and polishing disk 4 links to each other with bolster 11 by bearing.Coil 6 places in the magnetic core.The both sides of magnetic core 5 can be by circlip 9 location.
During work, drive each magnetic core 5 respectively, form needed gap, give coil 6 energisings, change its size and frequency,, in other words can form the shape and the hardness of needed bistrique to form needed three-dimensional magnetic line of force shape by drive motors 2.External motor drives polishing disk 4 rotations, drives magnetic fluid by polishing disk 4 and polishes.
Owing to be provided with 6 magnetic cores along distributing on the bolster, by Electric Machine Control, can realize different magnetic core gaps, according to the permutation and combination principle, can realize 720 kinds of gaps, just 720 kinds of magnetic lines of force.And 4 little magnetic cores are arranged on each magnetic core, and also gapped between them, just also can form the magnetic line of force, so just formed the magnetic line of force of space multistory.Add the controllable current size, have or not, parameter such as frequency to be to realize the strong and weak of the magnetic line of force and to have or not, and just formed the three-dimensional controlled magnetic line of force.
After adjusting the magnetic line of force shape that needs, the polishing wheel internal structure is maintained fixed, behind the coil electricity, on the shell of magnetic rheological body attached to the polishing disk of magnetic core air gap top, external motor drives the polishing disk rotation by gear train, magnetic fluid by the polishing dribbling and polishes.
Claims (6)
1. three-dimensional polishing wheel with controllable magnetic rheology is characterized in that being provided with drive motors, motor gear, ring gear, polishing disk, bearing, magnetic core, coil, sleeve and bolster;
Drive motors is fixed on the bolster, the lead-in wire of drive motors is drawn external power supply by the wire through-hole of being located on the bolster, motor gear is fixed on the drive motors, ring gear is connected with magnetic core and is enclosed within on the bolster and rotates around bolster, drive motors drives ring gear and rotates, motor gear and ring gear engagement make magnetic core rotate, each magnetic core distributes at bolster upper edge axis, locate by sleeve between each magnetic core, polishing disk is a top thin, the vertical hollow housing structure that both sides are thick, polishing disk connects with bolster by bearing, and coil places in the magnetic core.
2. three-dimensional polishing wheel with controllable magnetic rheology as claimed in claim 1 is characterized in that described bolster is the hollow type bolster, and described ring gear is connected by hold-down screw with fan-shaped magnetic core.
3. three-dimensional polishing wheel with controllable magnetic rheology as claimed in claim 1 is characterized in that described magnetic core is fan-shaped magnetic core.
4. as claim 1 or 3 described three-dimensional polishing wheel with controllable magnetic rheology, it is characterized in that described magnetic core is provided with 4 little magnetic cores.
5. as claim 1 or 3 described three-dimensional polishing wheel with controllable magnetic rheology, it is characterized in that the both sides of described magnetic core are located by circlip.
6. three-dimensional polishing wheel with controllable magnetic rheology as claimed in claim 1 is characterized in that the lead of coil is drawn external power supply by the wire through-hole of being located on the bolster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101851281A CN101837571B (en) | 2010-05-21 | 2010-05-21 | Three-dimensional polishing wheel with controllable magnetic rheology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101851281A CN101837571B (en) | 2010-05-21 | 2010-05-21 | Three-dimensional polishing wheel with controllable magnetic rheology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101837571A true CN101837571A (en) | 2010-09-22 |
| CN101837571B CN101837571B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101851281A Expired - Fee Related CN101837571B (en) | 2010-05-21 | 2010-05-21 | Three-dimensional polishing wheel with controllable magnetic rheology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990481A (en) * | 2013-01-05 | 2013-03-27 | 长沙纳美特超精密制造技术有限公司 | Double-faced magneto-rheological polishing device and method |
| CN104191318A (en) * | 2014-09-01 | 2014-12-10 | 浙江师范大学 | Magneto-rheological polishing method and tool |
| CN106736886A (en) * | 2017-01-20 | 2017-05-31 | 浙江师范大学 | Automatic Combined Changeful type MRF head |
| CN106736885A (en) * | 2017-01-20 | 2017-05-31 | 浙江师范大学 | Type variable MRF head |
| CN110076703A (en) * | 2019-03-12 | 2019-08-02 | 湘潭大学 | A kind of hydraulic grinding wheel of magnetic fluid and its controllable type polishing processing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1915591A (en) * | 2006-09-04 | 2007-02-21 | 厦门大学 | Polishing wheel with parameter adjustable type magnetic rheology |
| JP2008000853A (en) * | 2006-06-22 | 2008-01-10 | Tipton Mfg Corp | Brush for deburring |
| CN201086241Y (en) * | 2007-09-13 | 2008-07-16 | 赵福军 | Metallic phase polisher milling and polishing disc |
| WO2008127269A2 (en) * | 2006-08-15 | 2008-10-23 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | A method and apparatus for attaching a fluid cell to a planar substrate |
| US20080289132A1 (en) * | 2006-05-17 | 2008-11-27 | Umbrell Richard T | Quick release connector for a single or dual-sided pad |
| JP2009214185A (en) * | 2008-03-06 | 2009-09-24 | Tipton Mfg Corp | Brush for removing burr |
-
2010
- 2010-05-21 CN CN2010101851281A patent/CN101837571B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080289132A1 (en) * | 2006-05-17 | 2008-11-27 | Umbrell Richard T | Quick release connector for a single or dual-sided pad |
| JP2008000853A (en) * | 2006-06-22 | 2008-01-10 | Tipton Mfg Corp | Brush for deburring |
| WO2008127269A2 (en) * | 2006-08-15 | 2008-10-23 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | A method and apparatus for attaching a fluid cell to a planar substrate |
| CN1915591A (en) * | 2006-09-04 | 2007-02-21 | 厦门大学 | Polishing wheel with parameter adjustable type magnetic rheology |
| CN201086241Y (en) * | 2007-09-13 | 2008-07-16 | 赵福军 | Metallic phase polisher milling and polishing disc |
| JP2009214185A (en) * | 2008-03-06 | 2009-09-24 | Tipton Mfg Corp | Brush for removing burr |
Non-Patent Citations (2)
| Title |
|---|
| 《厦门大学学报(自然科学版)》 20080731 郭隐彪等 "磁流变抛光轮结构设计与磁场分析" 第528-531页 1-6 第47卷, 第4期 2 * |
| 《机床与液压》 20080331 康佳文 "磁流变抛光技术的研究现状及其发展" 第173-175、182页 1-6 第36卷, 第3期 2 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990481A (en) * | 2013-01-05 | 2013-03-27 | 长沙纳美特超精密制造技术有限公司 | Double-faced magneto-rheological polishing device and method |
| CN104191318A (en) * | 2014-09-01 | 2014-12-10 | 浙江师范大学 | Magneto-rheological polishing method and tool |
| CN104191318B (en) * | 2014-09-01 | 2017-05-10 | 浙江师范大学 | Magneto-rheological polishing method and tool |
| CN106736886A (en) * | 2017-01-20 | 2017-05-31 | 浙江师范大学 | Automatic Combined Changeful type MRF head |
| CN106736885A (en) * | 2017-01-20 | 2017-05-31 | 浙江师范大学 | Type variable MRF head |
| CN110076703A (en) * | 2019-03-12 | 2019-08-02 | 湘潭大学 | A kind of hydraulic grinding wheel of magnetic fluid and its controllable type polishing processing method |
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| Publication number | Publication date |
|---|---|
| CN101837571B (en) | 2011-09-28 |
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Granted publication date: 20110928 Termination date: 20140521 |