CN206366867U - The MRF grinding wheel device in open magnetic field - Google Patents
The MRF grinding wheel device in open magnetic field Download PDFInfo
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- CN206366867U CN206366867U CN201621335357.6U CN201621335357U CN206366867U CN 206366867 U CN206366867 U CN 206366867U CN 201621335357 U CN201621335357 U CN 201621335357U CN 206366867 U CN206366867 U CN 206366867U
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- pole
- magnetic field
- mrf
- rotary
- main pole
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Abstract
The utility model discloses the MRF grinding wheel device in open magnetic field, including main pole and rotary pole, the main pole includes outer wall, inwall, circular bottom surface, main pole is integrally formed, space is left between outer wall and inwall, copper coil is installed in the space, the rotary pole is embedded in inwall, the work nest for being additionally provided with addition magnetic flow liquid is embedded in rotary pole upper end, the rotary pole upper end, which is provided with, makes the emery wheel of magnetic flow liquid formation Bingham body, rotary pole lower end connection belt pulley installation axle.The utility model has the advantage of：It is simple in construction, it is convenient and practical, vortex effect can be avoided, processing efficiency is improved；The problem of motion is unstable is overcome, stable high-intensity magnetic field can be produced by not necessarily forming the loop of closure, realize the purpose of polishing.
Description
Technical field
The utility model is related to optical element surface Ultra-smooth machining technical field, and in particular to one kind has open magnetic
The electromagnetic mode grinding head for polishing and device of field.
Background technology
Modern shortwave, strong light optics, the demand for development optical element of electronics and membrane science should have high reflectance,
High surface figure accuracy, low roughness and high intensity, therefore the requirement to optical surface is extremely harsh, such as surface lacks without distortion of lattice
Fall into, be substantially not present residual stress, extremely low surface roughness, without exogenous impurity pollution, high geometric accuracy and substrate surface should
With accurate crystal orientation etc..The huge increasing of the irregular shape optical element demand such as particularly 2.5D, 3D, sphere, to optics zero
The quality and technique of part processing propose increasingly harsher requirement.
Technique of Magnetorheological Finishing is to be combined electromagnetism and Hydrodynamics Theory and be applied to a kind of skill of optical manufacturing
Art.Magnetorheological process technology is high-precision optical part process technology more satisfactory at present, the biggest advantage is that being not present
The problem of tool wear, machining accuracy is high；Easily realize computer control；Its polishing tool utilizes the particularity of magnetic rheological body, no
Sub-surface destruction can be produced, problem present in conventional polishing method can be fundamentally solved, modern science and technology is met
Develop the demand for development to optical element.
Chinese patent ZL.200820228337.8 discloses a kind of magnetorheological change polishing method of annulus, solenoid
Afterwards, the position of interior outer magnetic pole minimum clearance produces the larger gradient magnetic of intensity, so as to form the Bingham body of ring-band shape, motor belt motor
Outer magnetic pole is rotated in dynamic, and then drives the Bingham body of ring-band shape to rotate together, is swung while workpiece drives in motion
And rotation so that relative motion is formed between workpiece and ring-type Bingham body, shearing force is produced and realizes MRF.
It is well known that improving the polishing efficiency of optical element, the Main Means of MRF include：Improve motion speed
Degree, the Ben-Hur bulk area that increasing magnetic field and increase are contacted with workpiece.Above-mentioned magneto-rheological grinding head device can realize workpiece
Surface is polished, and with certain novelty, but this technology has certain application restriction,
The one technology needs inside and outside pole ring to be rotated around magnet coil in process, because having between magnetic pole and coil
Gap, will produce vortex effect, cause magnetic field intensity to be difficult to increase, so that it is difficult to expand the area that Bingham body is contacted with workpiece,
Enable and be expanded to certain scope, its uniformity can also be restricted；
Second, the servo rotary component that the technology is used can only be fixed on one end of rotary shaft by bearing, it is such as fixed
In the lower end of rotary shaft, kinetic stability can be caused bad, such as be fixed on the upper end of rotary shaft, the offline circle remote of magnetic pole end face can be made
From increase, so as to cause magnetic field intensity exponentially to decline again；
Third, the technology is after solenoid, could only be produced in the position of interior outer magnetic pole minimum clearance intensity compared with
Big gradient magnetic, so as to form the Bingham body of ring-band shape, this just limits the necessary pole of its interior outer magnetic pole (i.e. N, S pole) as far as possible
It is close, the magnetic field structure of closure is formed, stable high-intensity magnetic field otherwise can not be just formed, the purpose of polishing is realized.
In view of the foregoing, a kind of new MRF emery wheel and harness is researched and developed to overcome prior art problem to be necessary
's.
Utility model content
In view of the deficienciess of the prior art, the purpose of the utility model patent is to provide a kind of open magnetic field of use
MRF grinding wheel device, can overcome prior art electromagnetism intensity to be difficult to be lifted, processing efficiency is low and device structure is complicated
The problem of.
To achieve the above object, the utility model patent is realized using following technical scheme：
The MRF grinding wheel device in open magnetic field, including main pole and rotary pole, the main pole include outer
Wall, inwall, circular bottom surface, main pole are integrally formed, are left between outer wall and inwall in space, the space and be provided with copper cash
Circle, the rotary pole is embedded in inwall, and the work nest for being additionally provided with addition magnetic flow liquid is embedded in rotary pole upper end, the rotation
Turn magnetic pole upper end and be provided with the emery wheel for making magnetic flow liquid form Bingham body, rotary pole lower end connection belt pulley installation axle.
Further, the copper coil is fastened in main pole, gapless between copper coil and main pole, and main pole is
Permeability magnetic material.
Further, the upper end of the copper coil is higher than the upper end of main pole inwall, and the copper coil upper end is provided with a line
Briquetting is enclosed, the coil briquetting is threaded in main pole, and coil briquetting is non-magnet_conductible material.
Further, one cold water storage cistern of welding on the outside of the main pole, the cold water storage cistern is provided with lower water inlet and upper water-out mouthful,
Cold water storage cistern is non-magnet_conductible material.
Further, the rotary pole is in T-shape, and the upper end of rotary pole is more than lower end, the rotary pole it is upper
End-rack is on the upper end of main pole inwall.
Further, the rotary pole and the emery wheel are connected as a single entity, and are soft magnetic materials, and the emery wheel is that girdle type breaks
Any of continuous structure, the interrupted structure of cuboid, the interrupted structure of ellipsoid, the interrupted structure of irregular body.
Further, plugged on the outside of the emery wheel and be adhesive with an emery wheel retaining ring.
Further, upper bearing (metal), the rotary pole are provided between the rotary pole connects with the main pole upper end
Lower bearing is provided between connecting with the main pole lower end.
Further, trim ring is provided with above the upper bearing (metal), the trim ring is threaded on the main pole inwall, with
Fixed upper bearing (metal).
Further, bearing washer is provided with below the lower bearing, the bearing washer is arranged on master by the first screw
On magnetic pole.
The utility model has the advantage of：Simple in construction, convenient and practical, gapless between copper coil and main pole is set
Rotary pole rotates on the inside of main pole, can avoid vortex effect, greatly increases magnetic field intensity, expand in MRF with
Workpiece contacts the area of Bingham body, and the magnetic field homogeneity of each Bingham body is consistent, substantially increases processing efficiency；Secondly, rotation
Turn the upper end that magnetic pole, emery wheel, emery wheel retaining ring, the dynamic component of these tunnels of belt pulley installation axle are arranged on belt pulley installation axle, to overcome
The problem of motion is unstable, the utility model N, S poles can be with interval apart from each other, not necessarily forming the loop of closure can produce
Raw stable high-intensity magnetic field, realizes the purpose of polishing.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 the utility model integral installation structural representations；
Fig. 2 the utility model grinding wheel device internal structure schematic diagrams；
Fig. 3 rotary pole structural representations；
The interrupted structural representation of Fig. 4 emery wheel girdle types；
The interrupted structural representation of Fig. 5 emery wheel cuboids；
The interrupted structural representation of Fig. 6 emery wheel ellipsoids.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
As Figure 1-3, the MRF grinding wheel device in open magnetic field, including main pole and rotary pole 2, main magnetic
Pole is arranged on support 15 by the 3rd screw 17, and main pole includes outer wall 11, inwall 12, circular bottom surface 13, main pole one
It is body formed, left between outer wall 11 and inwall 12 and copper coil 3 is installed in space, space, copper coil 3 is fastened in main pole
Interior, gapless between copper coil 3 and main pole can avoid vortex effect, greatly increase magnetic field intensity, expand in MRF
The area of Bingham body is contacted with workpiece, and the magnetic field homogeneity of each Bingham body is consistent, substantially increases processing efficiency, copper coil
3 upper end is higher than the upper end of main pole inwall, and the upper end of copper coil 3 is provided with a coil briquetting 5, and coil briquetting 5 is threaded in master
On magnetic pole, to fixed copper coil 3.One cold water storage cistern 7 of the outside of main pole 1 welding, cold water storage cistern 7 is provided with lower water inlet 71 and upper water-out
Mouth 72, cooling water enters from lower water inlet 71, is flowed out from upper water-out mouthful 72, enables the copper coil 3 of a large amount of heat energy of generation fast
Quickly cooling is but.
Rotary pole 2 is embedded in inwall 12, and the work nest for being additionally provided with addition magnetic flow liquid is embedded in rotary pole upper end, is revolved
Turn magnetic pole upper end and be provided with to make the emery wheel 21 of magnetic flow liquid formation Bingham body, rotary pole 2 and the emery wheel 21 are one, such as Fig. 4-
Shown in 6, emery wheel 21 can be the interrupted structure of girdle type；The interrupted structure of cuboid, the even interrupted structure of ellipsoid, irregular body
Interrupted structure.The outside of the emery wheel 21 plugs and is adhesive with an emery wheel retaining ring 6.
Rotary pole 2 is in T-shape, and the upper end of rotary pole 2 is more than lower end, and the upper end frame of the rotary pole 2 is in main magnetic
On the upper end of pole inwall 12.The lower end of rotary pole 2 is connected in belt pulley installation axle 13 by the second screw 18.Rotary pole 2
Rotated on the inside of main pole, can equally avoid vortex effect, greatly increase magnetic field intensity, expand in MRF with workpiece
The area of Bingham body is contacted, and the magnetic field homogeneity of each Bingham body is consistent, substantially increases processing efficiency.The utility model N,
S poles can be with interval apart from each other, and stable high-intensity magnetic field can be produced by not necessarily forming the loop of closure, realize the purpose of polishing.
The rotary pole 2 connect with the main pole upper end between be provided with upper bearing (metal) 8, the rotary pole 2 with it is described
Main pole lower end is provided with lower bearing 9 between connecting.The top of upper bearing (metal) 8 is provided with trim ring 4, and the trim ring 4 is threaded in institute
State on main pole inwall 12, to fix upper bearing (metal) 8.The lower section of lower bearing 9 is provided with bearing washer 11, and the bearing washer 11 leads to
The first screw 10 is crossed in main pole.
Main pole, rotary pole 2, emery wheel 21, trim ring 4 are soft magnetic materials；The coil briquetting 5, emery wheel retaining ring 6, machine
Seat 15 is non-magnet_conductible material.Rotary pole 2, emery wheel 21, emery wheel retaining ring 6, the dynamic component of these tunnels of belt pulley installation axle 22 are installed
In the upper end of belt pulley installation axle, the problem of motion is unstable is overcome.
Motor is arranged on support 15, electric machine rotational axis and belt pulley installation axle 22 is connected with shaft coupling 16, toward work
Make addition magnetic flow liquid in groove, work as electrical power, driving belt pulley installation axle 22 and rotary pole 2 rotate, it is logical to copper coil 3
Electricity, the end face of rotary pole 2 is that emery wheel 21 can make magnetic flow liquid form the Bingham body structure of interrupted shape.Certainly, Bingham body structure
Speed, the energization magnetic field intensity that can be rotated with motor etc. are adjusted.In addition, the direction of rotation of belt pulley installation axle 22 is variable
's.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (10)
1. the MRF grinding wheel device in open magnetic field, it is characterised in that：Including main pole and rotary pole, the main magnetic
Pole includes outer wall, inwall, circular bottom surface, and main pole is integrally formed, leaves in space, the space and pacify between outer wall and inwall
Equipped with copper coil, the rotary pole is embedded in inwall, and the work nest for being additionally provided with addition magnetic flow liquid is embedded in rotary pole upper end
In, the rotary pole upper end, which is provided with, makes the emery wheel of magnetic flow liquid formation Bingham body, and rotary pole lower end connection belt pulley is installed
Axle.
2. the MRF grinding wheel device in open magnetic field according to claim 1, it is characterised in that：The copper coil
It is fastened in main pole, gapless between copper coil and main pole, main pole is permeability magnetic material.
3. the MRF grinding wheel device in open magnetic field according to claim 2, it is characterised in that：The copper coil
Upper end be higher than the upper end of main pole inwall, the copper coil upper end is provided with a coil briquetting, coil briquetting threaded connection
In main pole, coil briquetting is non-magnet_conductible material.
4. the MRF grinding wheel device in open magnetic field according to claim 1, it is characterised in that：The main pole
A cold water storage cistern is welded in outside, and the cold water storage cistern is provided with lower water inlet and upper water-out mouthful, and cold water storage cistern is non-magnet_conductible material.
5. the MRF grinding wheel device in open magnetic field according to claim 1, it is characterised in that：The rotary magnetic
Pole is in T-shape, and the upper end of rotary pole is more than lower end, and the upper end frame of the rotary pole is on the upper end of main pole inwall.
6. the MRF grinding wheel device in open magnetic field according to claim 1 or 5, it is characterised in that：The rotation
Turn magnetic pole and the emery wheel be connected as a single entity, be soft magnetic materials, the emery wheel be the interrupted structure of girdle type, the interrupted structure of cuboid,
Any of the interrupted structure of ellipsoid, the interrupted structure of irregular body.
7. the MRF grinding wheel device in open magnetic field according to claim 6, it is characterised in that：The emery wheel
Outside plugs and is adhesive with an emery wheel retaining ring.
8. the MRF grinding wheel device in open magnetic field according to claim 1, it is characterised in that：The rotary magnetic
Pole is provided with upper bearing (metal) between connecting with the main pole upper end, and the rotary pole is provided between connecting with the main pole lower end
Lower bearing.
9. the MRF grinding wheel device in open magnetic field according to claim 8, it is characterised in that：The upper bearing (metal)
Top is provided with trim ring, and the trim ring is threaded on the main pole inwall, to fix upper bearing (metal).
10. the MRF grinding wheel device in open magnetic field according to claim 8 or claim 9, it is characterised in that：Under described
Bearing washer is provided with below bearing, the bearing washer is arranged in main pole by the first screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621335357.6U CN206366867U (en) | 2016-12-07 | 2016-12-07 | The MRF grinding wheel device in open magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621335357.6U CN206366867U (en) | 2016-12-07 | 2016-12-07 | The MRF grinding wheel device in open magnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206366867U true CN206366867U (en) | 2017-08-01 |
Family
ID=59393323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621335357.6U Withdrawn - After Issue CN206366867U (en) | 2016-12-07 | 2016-12-07 | The MRF grinding wheel device in open magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206366867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425704A (en) * | 2016-12-07 | 2017-02-22 | 深圳市智博高科光电装备有限公司 | Magnetorheological polishing grinding wheel device adopting open magnetic field |
-
2016
- 2016-12-07 CN CN201621335357.6U patent/CN206366867U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425704A (en) * | 2016-12-07 | 2017-02-22 | 深圳市智博高科光电装备有限公司 | Magnetorheological polishing grinding wheel device adopting open magnetic field |
| CN106425704B (en) * | 2016-12-07 | 2018-11-02 | 深圳市智博高科光电装备有限公司 | The Magnetorheological Polishing grinding wheel device in open magnetic field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170801 Effective date of abandoning: 20181102 |
|
| AV01 | Patent right actively abandoned |