CN102990481A - Double-faced magneto-rheological polishing device and method - Google Patents
Double-faced magneto-rheological polishing device and method Download PDFInfo
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- CN102990481A CN102990481A CN2013100018710A CN201310001871A CN102990481A CN 102990481 A CN102990481 A CN 102990481A CN 2013100018710 A CN2013100018710 A CN 2013100018710A CN 201310001871 A CN201310001871 A CN 201310001871A CN 102990481 A CN102990481 A CN 102990481A
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Abstract
The invention relates to a double-faced magneto-rheological polishing device and method. A polishing spindle driven by a motor to rotate is arranged on a base. A polishing sleeve is sleeved on the polishing spindle, is connected with the polishing spindle through a connection part, and comprises an inner polishing sleeve and an outer polishing sleeve which are coaxial. A bottom plate of the inner polishing sleeve is connected with a bottom plate of the outer polishing sleeve, a workpiece is arranged between the inner polishing sleeve and the outer polishing sleeve, and the top of the workpiece is fixed on an end cover above the polishing spindle through a fixing part. Electromagnets are regularly arranged on the inner polishing sleeve and the outer polishing sleeve, magnetic poles are radially arranged, relative movement occurs between the inner polishing sleeve and the workpiece and between the outer polishing sleeve and the workpiece, certain gaps are reserved between the inner polishing sleeve and the workpiece and between the outer polishing sleeve and the workpiece, and the gaps are full of magneto-rheological liquid. When polishing is performed, the inner polishing sleeve and the outer polishing sleeve rotate to drive the electromagnets to rotate, each group of electromagnets serve as a group of polishing heads, and accordingly, inside and outside efficient polishing processing on the whole annular surface can be achieved. In addition, by controlling relevant parameters, processing of annular surfaces of different shapes and sizes can be achieved.
Description
Technical field
The present invention relates to a kind of two-sided magnetorheological finishing device and method.
Background technology
Along with the develop rapidly in a plurality of fields such as optics, information, Aero-Space, metering detect, biomedicine, high-performance, high accuracy, high integrated electro-optical system continue to bring out.With optical glass, the hard brittle materials such as silicon metal are that the optical element of representative proposes stricter requirement to processing technology, can stay damage on surface and inferior surface after traditional ultraprecise mirror grinding and the diamond super precision turning processing, therefore, processing is for the processing of the optical element that requires surperficial ultra-smooth, inferior surface not to damage, and the appearance of new Finishing is necessary.
Technique of Magnetorheological Finishing is one and adapts to the Finishing that high accuracy, surface and inferior surface do not have damage, to utilize the rheological effect of magnetic flow liquid in non-uniform magnetic field to realize a kind of process of polishing processing, current academia, a focus of industrial circle research.
In disclosed various Technique of Magnetorheological Finishing, the relative motion that has variety of way to produce Bingham body and workpiece comes polishing workpiece, realizes processing, but can not process simultaneously inside and outside two surfaces, generally only have a rubbing head, this processing mode is with respect to a plurality of rubbing heads, and efficient is low.The magnetorheological finishing device of studying such as U.S. Rochester university is the polishing wheel surface of magnetic flow liquid being transported to rotation by the pump housing, polishing wheel is brought magnetic flow liquid into magnetic field, form Bingham body, Bingham body and workpiece form relative motion, realize the polishing to workpiece.The method can't realize the processing to work piece inner surface.
A kind of magnetorheological change burnishing device for the aperture aspherical optical element has been proposed in the Chinese patent 200810030898.1, the large-aperture optical part is placed on the lathe, rubbing head place workpiece directly over, the magnetorheological circulatory system links to each other with rubbing head, and control system is controlled the work of the whole decorum.System complex, not being suitable for surfaces externally and internally needs the simultaneously part of processing.
A kind of Magnetorheological Jet Polishing device is that magnetic flow liquid passes through magnetic field inner high speed ejaculation, because magnetic rheology effect, it is restrained when magnetic flow liquid penetrates spout, has certain viscosity, reach the purpose of polishing workpiece by the direction of adjusting magnetic field intensity and injection, its shortcoming is controlled difficulty exactly, and precision is low, can not process simultaneously surfaces externally and internally.
Summary of the invention
The object of the invention is to, for the deficiencies in the prior art, provide a kind of two-sided magnetorheological finishing device and method, the surfaces externally and internally of processing work simultaneously, and simple in structure, easy operating.
Technical scheme of the present invention is, a kind of two-sided magnetorheological finishing device, the fluid reservoir that comprises base and storage magnetic flow liquid, buff spindle by its rotation of motor-driven is installed on the described base, and be provided with the polishing sleeve set on buff spindle and this polishing sleeve be connected with buff spindle by connector, described polishing sleeve comprise that coaxial and base plate links to each other interior polishing sleeve and outer polishing sleeve, workpiece is installed between interior polishing sleeve and the outer polishing sleeve, and the workpiece top is fixed on the end cap of buff spindle top by fixture; On the polishing sleeve a plurality of electromagnet group are installed, each electromagnet group is installed on interior polishing sleeve and the outer polishing sleeve and by controller by correspondence and forms for it provides the inner sleeve electromagnet of electric current and outer sleeve electromagnet, and the inner sleeve electromagnet is opposite near the end magnetic pole of workpiece with the outer sleeve electromagnet in each electromagnet group; The liquid outlet of fluid reservoir is provided with connecting line and passes into respectively gap between interior polishing sleeve and the workpiece and the gap between outer polishing sleeve and the workpiece.
Polishing sleeve bottom is provided with the inlet that reclaim line is connected to fluid reservoir.Described magnetic flow liquid can pass through connecting pipe, from the output of fluid reservoir the inside, utilize nozzle to spray into magnetic flow liquid, below by reclaim line the magnetic flow liquid that reclaims is transported to the fluid reservoir the inside at the polishing sleeve, realize the input of whole device magnetic flow liquid and the circulation of output, and then realize the circulation renewal of magnetic flow liquid.
Described electromagnet can change its shape, number, position according to actual needs, to adapt to difformity, diverse location, high efficiency, the Ultraprecise polished requirement of the two-sided annulus part of different sizes.Can be level with the end face of described inner sleeve electromagnet and the close workpiece of outer sleeve electromagnet; Also the end face of inner sleeve electromagnet and the close workpiece of outer sleeve electromagnet can be corresponding caving inward with outwardly.
A kind of two-sided magnetic rheological polishing method that utilizes above-mentioned two-sided magnetorheological finishing device, the method comprises the steps, workpiece is installed between interior polishing sleeve and the outer polishing sleeve, start the motor of buff spindle, interior polishing sleeve 4 and outer polishing sleeve rotate with buff spindle, then open the liquid outlet of fluid reservoir, inwardly polish in gap between sleeve and the workpiece and the gap between outer polishing sleeve and the workpiece by connecting line and to inject magnetic flow liquid, start controller and provide intermittent electric current by controller to inner sleeve electromagnet and outer sleeve electromagnet, each electromagnet group is equivalent to one group of rubbing head, respectively the processing work surfaces externally and internally.
Described controller provides intermittent electric current to electromagnet, so electromagnet also is the intermittent magnetic that provides, it is exactly the process that magnetic polishing ribbon and magnetic flow liquid transform mutually that electromagnet is magnetic with non-magnetic process, the motion of the electromagnet on the polishing sleeve drives the motion of whole magnetic flow liquid, realizes recycling of magnetic flow liquid.
As known from the above, the present invention is as a kind of two-sided magnetorheological finishing device and method, simultaneously processing work surfaces externally and internally, simple in structure, cost is low, and easy operating, and can realize recycling of magnetic flow liquid.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of burnishing device of the present invention;
Fig. 2 is the sectional view of F-F face among Fig. 1;
Fig. 3 is the shape schematic diagram of the first electromagnet group;
Fig. 4 is the shape schematic diagram of the second electromagnet group;
Fig. 5 is the shape schematic diagram of the third electromagnet group;
Among the figure:
The 1-base, the 2-fluid reservoir, polishing sleeve in the 3-bearing (ball) cover, 4-, the 5-accumulator tank,
The 6-workpiece, the 7-adsorption piece, the 8-end cap, 9-connecting line, 10-polish sleeve outward,
The 11-magnetic flow liquid, 12-bearing, 13-buff spindle, 14-bearing (ball) cover, 15-reclaim line, 16-gear, 17-motor, 18-controller, 19-outer sleeve electromagnet, 20-inner sleeve electromagnet.
The specific embodiment
Such as Fig. 1, shown in Figure 2, a kind of two-sided magnetorheological finishing device, the fluid reservoir 2 that comprises base 1 and storage magnetic flow liquid 11, the buff spindle 13 that is driven its rotation by motor 17 is installed on the base 1, and be provided with the polishing sleeve set on buff spindle 13 and this polishing sleeve be connected with buff spindle 13 by connector, described polishing sleeve comprise that coaxial and base plate links to each other interior polishing sleeve 4 and outer polishing sleeve 10, workpiece 6 is installed between interior polishing sleeve 4 and the outer polishing sleeve 10, and workpiece 6 tops are fixed on the end cap of buff spindle 13 tops by fixture 7, and fixture 7 is adsorption piece; On the polishing sleeve a plurality of electromagnet group are installed, each electromagnet group is installed on interior polishing sleeve 4 and the outer polishing sleeve 10 and by controller 18 by correspondence and forms for it provides the inner sleeve electromagnet 20 of electric current and outer sleeve electromagnet 19, and inner sleeve electromagnet 20 is opposite near the end magnetic pole of workpiece 6 with outer sleeve electromagnet 19 in each electromagnet group; The liquid outlet of fluid reservoir 2 is provided with connecting line 9 and passes into respectively gap between interior polishing sleeve 4 and the workpiece 6 and the gap between outer polishing sleeve 10 and the workpiece 6.
Polishing sleeve bottom is provided with the inlet that reclaim line 15 is connected to fluid reservoir 2.
Magnet can have various shape as required, and as shown in Figure 3, inner sleeve electromagnet 20 and outer sleeve electromagnet 19 are level near the end face of workpiece 6.
As shown in Figure 4, inner sleeve electromagnet 20 and outer sleeve electromagnet 19 is corresponding caving inward and outwardly broken line near the end face of workpiece, and namely the end face of inner sleeve electromagnet 20 caves inward, end face end face outwardly or inner sleeve electromagnet 20 the end face outwardly, outer sleeve electromagnet 19 of outer sleeve electromagnet 19 caves inward.
As shown in Figure 5, inner sleeve electromagnet 20 and outer sleeve electromagnet 19 is corresponding caving inward and outwardly circular arc near the end face of workpiece, and namely the end face of inner sleeve electromagnet 20 caves inward, end face end face outwardly or inner sleeve electromagnet 20 the end face outwardly, outer sleeve electromagnet 19 of outer sleeve electromagnet 19 caves inward.
A kind of two-sided magnetic rheological polishing method that utilizes above-mentioned two-sided magnetorheological finishing device, the method comprises the steps, workpiece 6 is installed between interior polishing sleeve 4 and the outer polishing sleeve 10, start the motor 17 of buff spindle, interior polishing sleeve 4 and outer polishing sleeve 10 rotate with buff spindle 13, then open the liquid outlet of fluid reservoir 2, by injecting magnetic flow liquid 11 in the gap between connecting line 9 inside polishing sleeves 4 and the workpiece 6 and the gap between outer polishing sleeve 10 and the workpiece 6, start controller 18 and provide intermittent electric current by controller 18 to inner sleeve electromagnet 20 and outer sleeve electromagnet 19, each electromagnet group is equivalent to one group of rubbing head, respectively processing work 6 surfaces externally and internallies.
Claims (5)
1. two-sided magnetorheological finishing device, the fluid reservoir (2) that comprises base (1) and storage magnetic flow liquid (11), it is characterized in that, the upper buff spindle (13) that is driven its rotation by motor (17) of installing of described base (1), and upper and this polishing sleeve is connected with buff spindle (13) by connector at buff spindle (13) to be provided with the polishing sleeve set, described polishing sleeve comprise that coaxial and base plate links to each other interior polishing sleeve (4) and outer polishing sleeve (10), workpiece (6) is installed between interior polishing sleeve (4) and the outer polishing sleeve (10), and workpiece (6) top is fixed on the end cap of buff spindle (13) top by fixture (7); On the polishing sleeve a plurality of electromagnet group are installed, each electromagnet group is installed in interior polishing sleeve (4) by correspondence and outer polishing sleeve (10) upward and by controller (18) forms for it provides the inner sleeve electromagnet (20) of electric current and outer sleeve electromagnet (19), and inner sleeve electromagnet (20) is opposite near the end magnetic pole of workpiece (6) with outer sleeve electromagnet (19) in each electromagnet group; The liquid outlet of fluid reservoir (2) is provided with connecting line (9) and passes into respectively gap between interior polishing sleeve (4) and the workpiece (6) and the gap between outer polishing sleeve (10) and the workpiece (6).
2. described two-sided magnetorheological finishing device according to claim 1 is characterized in that, described polishing sleeve bottom is provided with the inlet that reclaim line (15) is connected to fluid reservoir (2).
3. described two-sided magnetorheological finishing device according to claim 1 and 2 is characterized in that, described inner sleeve electromagnet (20) and outer sleeve electromagnet (19) are level near the end face of workpiece (6).
4. described two-sided magnetorheological finishing device according to claim 1 and 2 is characterized in that, described inner sleeve electromagnet (20) and outer sleeve electromagnet (19) caving inward and outwardly for corresponding near the end face of workpiece.
5. two-sided magnetic rheological polishing method that utilizes the described two-sided magnetorheological finishing device of claim 1, it is characterized in that, the method comprises the steps, workpiece (6) is installed between interior polishing sleeve (4) and the outer polishing sleeve (10), start the motor (17) of buff spindle, interior polishing sleeve (4) and outer polishing sleeve (10) rotate with buff spindle (13), then open the liquid outlet of fluid reservoir (2), inwardly polish by connecting line (9) and to inject magnetic flow liquid (11) in gap between sleeve (4) and the workpiece (6) and the gap between outer polishing sleeve (10) and the workpiece (6), start controller (18) and provide intermittent electric current by controller (18) to inner sleeve electromagnet (20) and outer sleeve electromagnet (19), each electromagnet group is equivalent to one group of rubbing head, respectively processing work (6) surfaces externally and internally.
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| CN2013100018710A CN102990481A (en) | 2013-01-05 | 2013-01-05 | Double-faced magneto-rheological polishing device and method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553121A (en) * | 2017-01-09 | 2017-04-05 | 中国工程物理研究院机械制造工艺研究所 | A kind of totally enclosed type MRF head |
| CN107855834A (en) * | 2017-10-26 | 2018-03-30 | 广东工业大学 | A kind of rolling bearing type magnetorheological finishing device of high-precision ceramic balls |
| CN108274306A (en) * | 2017-12-24 | 2018-07-13 | 广东工业大学 | A kind of magnetorheological finishing device of high-efficiency high-accuracy Ceramic Balls |
| CN109693148A (en) * | 2019-03-06 | 2019-04-30 | 香港理工大学 | A kind of equipment for mass polishing workpiece |
| CN110722428A (en) * | 2019-10-23 | 2020-01-24 | 中国科学院光电技术研究所 | Magnetorheological sub-aperture polishing device suitable for large-aperture optical element |
| CN112658817A (en) * | 2021-01-26 | 2021-04-16 | 山东理工大学 | Alternating magnetic field-based complex curved surface magnetic field auxiliary finishing device and method |
| CN116551476A (en) * | 2023-07-10 | 2023-08-08 | 广州广钢气体能源股份有限公司 | Magnetorheological polishing device and method for conveying stainless steel pipeline by liquid nitrogen |
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| US5577948A (en) * | 1992-04-14 | 1996-11-26 | Byelocorp Scientific, Inc. | Magnetorheological polishing devices and methods |
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| CN100999061A (en) * | 2006-12-31 | 2007-07-18 | 广东工业大学 | Grinding polishing method based on magnetic rheology effect and its polishing device |
| CN101774151A (en) * | 2010-02-04 | 2010-07-14 | 北京理工大学 | Electromagnetic coupling field-induced rheological polishing tool |
| CN101837571A (en) * | 2010-05-21 | 2010-09-22 | 厦门大学 | Three-dimensional polishing wheel with controllable magnetic rheology |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553121A (en) * | 2017-01-09 | 2017-04-05 | 中国工程物理研究院机械制造工艺研究所 | A kind of totally enclosed type MRF head |
| CN107855834A (en) * | 2017-10-26 | 2018-03-30 | 广东工业大学 | A kind of rolling bearing type magnetorheological finishing device of high-precision ceramic balls |
| CN108274306A (en) * | 2017-12-24 | 2018-07-13 | 广东工业大学 | A kind of magnetorheological finishing device of high-efficiency high-accuracy Ceramic Balls |
| CN108274306B (en) * | 2017-12-24 | 2024-03-29 | 广东工业大学 | Magnetorheological polishing device for efficient high-precision ceramic balls |
| CN109693148A (en) * | 2019-03-06 | 2019-04-30 | 香港理工大学 | A kind of equipment for mass polishing workpiece |
| CN110722428A (en) * | 2019-10-23 | 2020-01-24 | 中国科学院光电技术研究所 | Magnetorheological sub-aperture polishing device suitable for large-aperture optical element |
| CN110722428B (en) * | 2019-10-23 | 2021-09-07 | 中国科学院光电技术研究所 | Magnetorheological sub-aperture polishing device suitable for large-aperture optical element |
| CN112658817A (en) * | 2021-01-26 | 2021-04-16 | 山东理工大学 | Alternating magnetic field-based complex curved surface magnetic field auxiliary finishing device and method |
| CN116551476A (en) * | 2023-07-10 | 2023-08-08 | 广州广钢气体能源股份有限公司 | Magnetorheological polishing device and method for conveying stainless steel pipeline by liquid nitrogen |
| CN116551476B (en) * | 2023-07-10 | 2023-09-15 | 广州广钢气体能源股份有限公司 | Magnetorheological polishing device and method for conveying stainless steel pipeline by liquid nitrogen |
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Application publication date: 20130327 |