CN204935273U - The field generator for magnetic of MRF equipment - Google Patents
The field generator for magnetic of MRF equipment Download PDFInfo
- Publication number
- CN204935273U CN204935273U CN201520620689.8U CN201520620689U CN204935273U CN 204935273 U CN204935273 U CN 204935273U CN 201520620689 U CN201520620689 U CN 201520620689U CN 204935273 U CN204935273 U CN 204935273U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- poles
- field generator
- model
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a kind of field generator for magnetic of MRF equipment, comprise the electromagnetic pole group be made up of opposite polarity two electromagnetic poles that at least one can produce gradient magnetic, the electromagnetic pole forming described electromagnetic pole group adopts at least two concentric circles to arrange and the opposite polarity annular poles of two adjacent poles.The utility model is used for the workpiece of magnetic flow liquid processing multifreedom motion, and under clamped one time, can carry out polishing to the outer surface of one or more workpiece, its outer surface can be plane, cambered surface or complex-curved simultaneously.The utility model is by probationary certificate: can be difficult to the difficult problem of polishing by effectively solution complicated surface, can reduce the operation of work pieces process, effectively improve polishing efficiency.
Description
Technical field
The utility model belongs to magnetorheological finishing device, is specifically related to a kind of field generator for magnetic of MRF equipment.
Background technology
Along with the continuous progress of present information electronic technology, optical technology, in IT, electron trade, ultra-smooth element application gets more and more, as Sapphire Substrate, monocrystalline silicon surface, cell phone rear cover etc., the manufacturing batch of this class component is large, and its surface will meet ultra-smooth, and glossiness is high, uniform color, without requirements such as scuffings.At present, the polisher lapper on market is all adopt plane to grind principle mutually, and workpiece is stuck in trip heart wheel, under the abrasive action of upper and lower polishing disk, realize polishing.The limitation of this polishing mode is exactly can only processing plane, can not process the curved surfaces such as cambered surface.
Magnetic flow liquid is a kind of intellectual material, is the suspended substance mixed by high permeability, low hysteresis small soft magnetic particles and non-magnetic liquid.It is liquid under normal conditions, when adding loaded magnetic field, liquid-solid phase occurring and becomes, and when the field is removed, the magnetic, solid-liquid phase occurs again and becomes.In certain magnetic field strength range, the apparent viscosity of magnetic flow liquid is relevant with magnetic field intensity, and this phenomenon is called magnetic rheology effect.Utilize the magnetic rheology effect of magnetic flow liquid, agglomeration of abrasive particles can be formed flexible bistrique in polishing area, have bistrique hardness adjustable, abrasive particle is from sharp, and face type such as to post at the advantage, for polishing function admirable.
The hardness of bistrique can be changed by changing magnetic field intensity during existing magnetorheological finishing device polishing operation, due to the limitation of field generator for magnetic structure, the effective polishing area in magnetic field is less, and the Material removal model of whole polishing area is fixing, cannot complete complex-curved polishing.
Utility model content
It is even that the purpose of this utility model is to provide a kind of Distribution of Magnetic Field, and the effective polishing area in magnetic field is comparatively large, is suitable for the field generator for magnetic of the MRF equipment of the complex-curved polishing of multifreedom motion workpiece.
The field generator for magnetic of the MRF equipment that the utility model provides, comprise the electromagnetic pole group be made up of opposite polarity two electromagnetic poles that at least one can produce gradient magnetic, the electromagnetic pole forming described electromagnetic pole group adopts at least two concentric circles to arrange and the opposite polarity annular poles of two adjacent poles.
Described annular poles comprises ring-shaped magnetic core, the magnetic core coil be wrapped on ring-shaped magnetic core outer surface, and ring-shaped magnetic core and magnetic core coil are fixed on base plate.
Described field generator for magnetic is located at below the polishing liquid bath of drum-shaped, is provided with exterior loop in described polishing liquid bath neighboring, the lower plane of described exterior loop and the upper planes align of described annular poles.
The beneficial effects of the utility model:
The utility model structure is simple, can realize the adjustment in magnetic line of force direction by changing size of current.Because the iron core in each coil is continuous print, therefore the annular magnetic pole formed after single coil energising, its magnetic field is continuous print at hoop, and magnetic flow liquid can be uniformly distributed along hoop, and workpiece direction of rotation is vertical with magnetic line of force direction, the shearing force that surface of the work is subject to is larger.
The utility model is used for the workpiece of magnetic flow liquid processing multifreedom motion, and under clamped one time, can carry out polishing to the outer surface of one or more workpiece, its outer surface can be plane, cambered surface or complex-curved simultaneously.The utility model is by probationary certificate: can be difficult to the difficult problem of polishing by effectively solution complicated surface, can reduce the operation of work pieces process, effectively improve polishing efficiency.
The technical solution of the utility model is further illustrated below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is magnetic line of force schematic diagram of the present utility model.
Fig. 4 is the schematic diagram of the utility model for processing work plane.
Fig. 5 is the schematic diagram of the utility model for machining curve surface of workpiece.
Detailed description of the invention
See Fig. 1-Fig. 3, the field generator for magnetic 6 that the utility model provides is located at below the polishing liquid bath 5 of drum-shaped, comprise two (or multiple) concentric circles to arrange and the opposite polarity annular poles of two adjacent poles, every two opposite polarity annular poles form an electromagnetic pole group A, each annular poles comprises ring-shaped magnetic core 602, be wrapped in the magnetic core coil 603 on ring-shaped magnetic core 602 outer surface, ring-shaped magnetic core 602 and magnetic core coil 603 are fixed on base plate 604, protection ring 606 is provided with in the outside of outermost annular poles, be provided with exterior loop 605 in polishing liquid bath 5 neighboring simultaneously, the lower plane of exterior loop 605 and the upper planes align of annular poles.
The energising direction of magnetic core coil 603 and exterior loop 605 is contrary, can form two opposite polarity magnetic poles, in two coils, form gradient magnetic after energising.After exterior loop 605 is energized, the magnetic induction density B of magnetic core coil 603 can be vector superposed, therefore, change the direction (see Fig. 3) that the electric current of exterior loop 605 can regulate the magnetic poles line of force, the requirement of different magnetic field required when can realize processing plane and processing curve.Certain the utility model also can not establish exterior loop 605, can play the effect producing magnetic field in magnetic flow liquid equally, and just effect is not as establishing the good of exterior loop 605.
Field generator for magnetic 6 of the present utility model can be used for comprising multiple complex surface such as plane and curved surface to the workpiece of multifreedom motion and carries out polishing.Apply polissoir of the present utility model as shown in Figure 4, the workpiece 4 comprising the magnetic flow liquid case 5 be located in frame, be located at revolution deep bid 1 above magnetic flow liquid case 5, be located at the workpiece motion s frame 2 on revolution deep bid 1 and be arranged on by rotating shaft 3 on workpiece motion s frame 2, the utility model field generator for magnetic 6 is arranged on the bottom of magnetic flow liquid case 5.
After energising, field generator for magnetic 6 produces gradient magnetic in magnetic flow liquid case 5, and magnetic flow liquid, under the effect of gradient magnetic, can form magnetic linkage along magnetic line of force direction, be equivalent to little magnetic bistrique one by one.When artifact-driven mechanism drives workpiece 4 to do multifreedom motion in magnetic flow liquid, workpiece 4 and magnetic flow liquid do relative motion, and magnetic flow liquid can produce removal effect to surface of the work, thus realizes polishing.
By magnetic circuit theorem, two opposite polarity magnetic poles can at gap location leakage field, and therefore leakage field place can produce a gradient magnetic.Because the magnetic conductivity μ of ferromagnetic material is very large, iron core has the effect making magnetic induction flux concentration to oneself inside.The line of magnetic induction not having the current-carrying coil of iron core to produce is that disperse is in whole space; If during same coil on a closed iron core, then not only the numerical value of magnetic flux increases greatly, and the line of magnetic induction is almost along iron core.By Ampère circuital theorem,
n and I in formula
0coil turn and electrical current respectively, B
ifor magnetic induction intensity, l
ifor the length of magnetic path, μ
ifor relative permeability, μ
0for air permeability.Therefore the size that the electrical current of coil and the length of magnetic path can change magnetic induction density B is changed.
Electrified wire can produce magnetic field therein with around in addition, according to Biot-Savart law,
magnetic induction density B is first magnetic induction intensity that each current elements Idl produces
vector superposed.Therefore, the magnetic induction intensity in MRF magnetic field is the magnetic induction intensity that each cartridge produces
vector superposed, namely
the large I changing field supply changes magnetic induction intensity
direction, thus realize magnetic induction intensity
direction adjustable.
By Biot-Sa farr's law, magnetic induction intensity is the multiplication cross that current elements and footpath are vowed, is axial vector, changes the direction that can change magnetic induction intensity that footpath is vowed.Footpath can be changed in each cartridge chamfering to vow, thus the direction of magnetic induction intensity can be changed.
The present embodiment, by controlling different servomotors, realizes the motion of the different free degree of workpiece, can any two interlocks between revolution, rotation, oscillating motion, also can independently moving, also can three motions link simultaneously.As shown in Figure 4, can the plane of processing work 4 when the deep bid 1 that revolves round the sun revolves round the sun and links with the rotation of workpiece motion s frame 2 drive shaft 3; As shown in Figure 5, when the deep bid 1 that revolves round the sun revolves round the sun, to wave with workpiece motion s frame 2 when (or workpiece motion s frame 2 waves, rotating shaft 3 rotation) links can the curved surface of processing work 4.
As can be seen here, when workpiece and magnetic flow liquid generation relative motion, the spinning motion of workpiece can realize the polishing of plane, and the oscillating motion of workpiece can realize the polishing of curved surface or facade, and the revolution motion of workpiece spindle can realize the uniformity of polishing.
Claims (3)
1. the field generator for magnetic of a MRF equipment, it is characterized in that comprising the electromagnetic pole group be made up of opposite polarity two electromagnetic poles that at least one can produce gradient magnetic, the electromagnetic pole forming described electromagnetic pole group adopts at least two concentric circles to arrange and the opposite polarity annular poles of two adjacent poles.
2. the field generator for magnetic of MRF equipment according to claim 1, it is characterized in that described annular poles comprises ring-shaped magnetic core, the magnetic core coil be wrapped on ring-shaped magnetic core outer surface, ring-shaped magnetic core and magnetic core coil are fixed on base plate.
3. the field generator for magnetic of MRF equipment according to claim 1 and 2, it is characterized in that described field generator for magnetic is located at below the polishing liquid bath of drum-shaped, exterior loop is provided with, the lower plane of described exterior loop and the upper planes align of described annular poles in described polishing liquid bath neighboring.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620689.8U CN204935273U (en) | 2015-08-17 | 2015-08-17 | The field generator for magnetic of MRF equipment |
| US15/536,282 US20170352460A1 (en) | 2015-08-17 | 2016-10-17 | Magnetic field generation apparatus of magnetorheological polishing device |
| PCT/CN2016/102291 WO2017028824A1 (en) | 2015-08-17 | 2016-10-17 | Magnetic field generation apparatus of magnetorheological finishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620689.8U CN204935273U (en) | 2015-08-17 | 2015-08-17 | The field generator for magnetic of MRF equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204935273U true CN204935273U (en) | 2016-01-06 |
Family
ID=55002728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520620689.8U Active CN204935273U (en) | 2015-08-17 | 2015-08-17 | The field generator for magnetic of MRF equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204935273U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014484A (en) * | 2015-08-17 | 2015-11-04 | 宇环数控机床股份有限公司 | Magnetic field generation device of magnetorheological polishing equipment |
| WO2017028824A1 (en) * | 2015-08-17 | 2017-02-23 | 宇环数控机床股份有限公司 | Magnetic field generation apparatus of magnetorheological finishing device |
| WO2018032659A1 (en) * | 2016-08-19 | 2018-02-22 | 江苏天一超细金属粉末有限公司 | Method and device for magnetorheological finishing |
-
2015
- 2015-08-17 CN CN201520620689.8U patent/CN204935273U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014484A (en) * | 2015-08-17 | 2015-11-04 | 宇环数控机床股份有限公司 | Magnetic field generation device of magnetorheological polishing equipment |
| WO2017028824A1 (en) * | 2015-08-17 | 2017-02-23 | 宇环数控机床股份有限公司 | Magnetic field generation apparatus of magnetorheological finishing device |
| WO2018032659A1 (en) * | 2016-08-19 | 2018-02-22 | 江苏天一超细金属粉末有限公司 | Method and device for magnetorheological finishing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204935272U (en) | A kind of magnetorheological finishing device | |
| CN105458839A (en) | Magnetorheological polishing method and device | |
| CN105014484A (en) | Magnetic field generation device of magnetorheological polishing equipment | |
| US20170352460A1 (en) | Magnetic field generation apparatus of magnetorheological polishing device | |
| CN204935271U (en) | A kind of field generator for magnetic of MRF equipment | |
| CN201120584Y (en) | Magnet swinging polisher | |
| CN103273385B (en) | Surface contact magneto-rheological flat polishing device and method with uniform magnetic field | |
| CN204935273U (en) | The field generator for magnetic of MRF equipment | |
| JP5352236B2 (en) | Electromagnetic stirring device | |
| Giesecke et al. | Role of Soft-Iron Impellers on the Mode Selection<? format?> in the von Kármán–Sodium Dynamo Experiment | |
| CN209110814U (en) | Subject grinding device | |
| US20110312248A1 (en) | System for magnetorheological finishing of a substrate | |
| Nie et al. | Magnet arrangements in a magnetic field generator for magnetorheological finishing | |
| GB1570934A (en) | Method of grinding material in a grinding mill and grinding mill for carrying out sail method | |
| CN110449997A (en) | A kind of efficient magnetic array magnetic field auxiliary polishing processing method and device | |
| CN104999344A (en) | Magnetic field generator of magnetorheological polishing equipment | |
| CN107199076A (en) | A kind of body grinding device for solid coating | |
| CN107481832B (en) | Electric control permanent magnet type magnetic field generating device for magnetorheological plane polishing | |
| CN203931702U (en) | A kind of I-shaped permanent magnet device for nulcear magnetic resonance (NMR) teaching and experiment equipment | |
| Meng et al. | Influence of magnets’ phyllotactic arrangement in cluster magnetorheological effect finishing process | |
| JPS60118466A (en) | Grinding method using magnetic fluid | |
| CN203346136U (en) | Micro-cluster water preparation device | |
| CN207587461U (en) | For the electric control permanent magnet formula field generator for magnetic of magnetorheological plane polishing | |
| CN110282708B (en) | Device and method for removing heavy metal complex from biogas slurry | |
| CN209233689U (en) | A kind of magnetic flux transform generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |