CN106736879B - A kind of roller type magnetorheological finishing device and method - Google Patents
A kind of roller type magnetorheological finishing device and method Download PDFInfo
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- CN106736879B CN106736879B CN201611138930.9A CN201611138930A CN106736879B CN 106736879 B CN106736879 B CN 106736879B CN 201611138930 A CN201611138930 A CN 201611138930A CN 106736879 B CN106736879 B CN 106736879B
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- carrier fluid
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- buff spindle
- fluid slot
- worm
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/005—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using a magnetic polishing agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/10—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
- B24B31/102—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work using an alternating magnetic field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Abstract
A kind of roller type magnetorheological finishing device,Including rack,Carrier fluid slot,Buff spindle,Permanent magnet,And transmission mechanism,The transmission mechanism is only driven by a motor,It is made of a pair of of worm and gear and a pair of of helical gear,Workpiece is fixed on the carrier fluid slot medial surface equipped with magnetorheological fluid,The buff spindle is located at the top of carrier fluid slot and stretches into carrier fluid slot vertically,The permanent magnet is placed in buff spindle,It is 3~5mm with buff spindle inner surface level interval,The outer surface of the buff spindle is 3~5mm with the horizontal distance of workpiece polished surface,The bottom surface of the carrier fluid slot is equipped with guide rail,It is set in the rack with the sliding block of guide rail cooperation,The worm gear drives buff spindle rotation,The helical gear drives carrier fluid slot to do reciprocating linear motion under the cooperation of guide rail and sliding block,The present invention has compact-sized,Energy loss is small,Control is simple,Recycling for magnetorheological fluid can be achieved,It is applicable to the polishing of long and narrow workpiece.
Description
Technical field：
The present invention relates to polissoirs and technique, especially a kind of to be driven using single motor and utilized magnetorheological fluid to workpiece
Carry out the apparatus and method of uniform polish.
Background technology：
With the rapid development of optical system and precision instrument technology, ultra-smooth large-size device is applied increasingly extensive right
More stringent requirements are proposed for the surface of opto-electronic device and form accuracy.Ultraprecision Machining is in opto-electronic device manufacture
Support technology is widely used in the fields such as aerospace, electronic communication, bioengineering, information technology, and achieves remarkable hair
Exhibition, has become the key areas in high competitive enterprise.With the continuous improvement of photovoltaic performance, dimension plane element
Application it is more and more extensive, for processing these devices, to meet the requirements such as unit removal amount is few, residual stress is small.And it is traditional
Plane polishing processing method, such as gyro-finishing, chemically mechanical polishing, the outer surface of perishable workpiece, or even Asia can be caused
The problems such as surface damage, production cost are high, efficiency is low.
Magnetorheological fluid is a kind of brand-new material, and when not adding magnetic field, magnetorheological fluid is the same as common fluid；In addition certain strong
After spending magnetic field, magnetorheological fluid can rapidly go to have viscoplastic Bingham media, and magnetic field can become again after disappearing again as flowing
Liquid.Magnetic rheology effect is caused to promote the formation of microstructure since there are mutual attractive force between magnetic-particle
, the core of magnetic rheology effect is that solid particle is incuded into dipole under outer field action, and the attraction between dipole causes
Particle chaining and phase separation.The performance characteristic that magnetorheological fluid has is：Settling stability is good, be easy to redisperse, high yield stress,
Null field viscosity is low, and the response time is fast, operating temperature range is wide.
Magnetorheological Polishing is a kind of precision processing technology, and addition is improved based on magnetorheological fluid and is obtained
Magnetorheologicai polishing liquid is polished workpiece, and Magnetorheologicai polishing liquid is by magnetosensitive particle, non magnetic polishing abrasive grain and surface-active
Agent is formed after being dispersed in base load liquid, is dispersed in base load liquid after magnetosensitive particle and Action of Surfactant, non magnetic
Polishing abrasive grain is added in magnetorheological fluid before processing, and by stirring, polishing abrasive grain is also dispersed in base load liquid.Magnetorheological throwing
Light liquid cures under magnetic fields, forms Bingham viscoplasticity bodies in machining area, uses it as the throwing of controllable line-like area
Optical tool is polished workpiece.
ZL201410528441.9 patent documents disclose a kind of reciprocating magnetorheological finishing device, and rubbing head is by workpiece
Axis, the non-magnetic fixture for being fixed on workpiece spindle lower end and soft magnet plate are constituted, and workpiece is fixed on non-magnetic fixture, equipped with magnetorheological
The carrier fluid slot of liquid is located at rubbing head lower part, and workpiece immerses in magnetorheological fluid when polishing, and the position of carrier fluid slot immobilizes, electromagnet
Positioned at carrier fluid slot lower part, electromagnet is driven by reciprocating transmission mechanism, parallel with workpiece polished surface makees straight reciprocating, workpiece
In magnetic field translation and the removal for completing surfacing under the compound motion of workpiece rotation.The advantages of this device is homogenizing property of magnetic field
It is good, long and narrow big flat work pieces can be processed, but since the position of carrier fluid slot immobilizes, magnetorheological fluid will not circulate, in electricity
Magnet is parallel with workpiece polished surface when making straight reciprocating motion, only when electromagnet moves to the lower zone of workpiece face
When, magnetorheological fluid herein just forms Bingham viscoplasticity bodies, therefore can not achieve the recycling of magnetorheological fluid.
ZL201410120264.0 patent documents disclose a kind of Magnetorheological Polishing suitable for super large caliber optical manufacturing
Device, the device are made of magnetorheological fluid burnishing device system and magnetorheological fluid circulator system.Magnetorheological fluid is by supply
Pump reaches nozzle, and the magnetorheological fluid of nozzle outflow moves to below permanent magnet, and under high intensity gradient magnetic, it is prominent to form ribbon
It rises, optical element rotates counterclockwise, and belt drives ribbon to be moved in perpendicular, and mirror finish is realized in the two relative motion.
Which solves aperture aspherical processing removal efficiency is low, the problems such as process-cycle is long, but the disadvantage is that part is relatively more,
Structure is more complicated.
Invention content：
In view of the drawbacks of the prior art, the present invention provide it is a kind of it is simple in structure it is being driven with single motor, can realize it is magnetorheological
Liquid recycle stream is dynamic and smoothly burnishing device is exchanged in polishing area.
The present invention uses following technical scheme：A kind of roller type magnetorheological finishing device is provided, which is characterized in that including：
Rack, carrier fluid slot, buff spindle, permanent magnet and transmission mechanism, magnetorheological fluid is equipped in the carrier fluid slot, and workpiece is carried by being located at
Non-magnetic fixture in liquid bath is fixed on the medial surface of the carrier fluid slot, and the buff spindle is located at the top of the carrier fluid slot and erects
It directly stretches into the carrier fluid slot, the permanent magnet is fixed in such a way that level protrudes out in a magnet frame, and is placed on the polishing
In axis, the magnet frame is connect with the buff spindle external stability, and the magnetic pole outer end of the permanent magnet is spherical structure and and work
The horizontal distance of part polished surface face, the top edge of the magnetic pole outer end and the buff spindle inner surface is 3~5mm, described
The outer surface of buff spindle is 3~5mm with the horizontal distance of workpiece polished surface, and the bottom surface of the carrier fluid slot is equipped with guide rail, with
The sliding block of guide rail cooperation is arranged in the rack, and the side of the carrier fluid slot is connect by spring with the rack, the other side
It is connected with partition board, the partition board connects an eccentric wheel, and the transmission mechanism includes that Worm and worm-wheel gearing and helical gear pass
Motivation structure, the Worm and worm-wheel gearing drive the buff spindle to rotate by worm gear, the helical gear drive mechanism band
It moves the eccentric wheel and then pushes partition board that the carrier fluid slot is made to do reciprocating linear motion under the cooperation of guide rail and sliding block.
Further, the Worm and worm-wheel gearing and the helical gear drive mechanism are turned by the driving of same motor
It is dynamic, and be connected and fixed by shaft coupling and bearing block.
Further, the polishing the tip of the axis is connected with blade.
The method being polished using above-mentioned roller type magnetorheological finishing device, is included the following steps：
Step 1 is mounted on workpiece on non-magnetic fixture, is fixed on carrier fluid slot medial surface, buff spindle is immersed in carrier fluid
In magnetorheological fluid in slot, the relative position of buff spindle and workpiece is adjusted, workpiece is made to be distributed about the axisymmetrical of buff spindle；
Permanent magnet is fixed in magnet frame by step 2, is put into buff spindle vertically, and it is spherical structure to adjust permanent magnet
The spacing of magnetic pole and buff spindle inner surface is setting value, to make the magnetic flux density of workpiece surface be 0.2-0.5T, adjusts polishing
The spacing of axis and workpiece polished surface is setting value；
Step 3 starts motor, and worm and gear and helical gear is driven to rotate synchronously, and keeps buff spindle rotation and carrier fluid slot past
Multiple mobile, the straight reciprocating stroke for adjusting carrier fluid slot is 100mm；
Step 4, in the case where carrier fluid slot is mobile and the compound action of buff spindle rotation, workpiece is polished 60 minutes, realizes workpiece
The removal of surfacing；
Step 5, polishing terminate, and shut down motor, workpiece spindle and carrier fluid slot stop motion, take magnet frame away, by workpiece from non-
It is unloaded in magnetic conduction fixture, workpiece is made to leave magnetorheological fluid.
The present invention operation principle be:Driving motor drives worm and gear and helical gear operating, worm gear to drive buff spindle
Rotation, permanent magnet are fixed in magnet frame and are put into buff spindle, and buff spindle is put into vertically in the carrier fluid slot equipped with magnetorheological fluid.
In polishing process, permanent magnet can be in buff spindle outer surface generation high-gradient magnetic field, carrier fluid slot in the magnetorheological fluid in this region
The Bingham viscoplasticity bodies with certain degree of hardness are formed, becomes the polishing tool of controllable line-like area, utilizes this viscoplasticity body
Shearing force the workpiece of carrier fluid slot inner surface is polished；While polishing, helical gear band movable eccentric wheel rotates, eccentric
Wheel heads on partition board and carrier fluid slot is driven to be moved along guide rail direction, and carrier fluid slot side is equipped with spring, and carrier fluid slot is in eccentric wheel and spring
It is moved back and forth along guide rail direction under collective effect, magnetorheological fluid is under the collective effect of buff spindle rotation and the movement of carrier fluid slot to work
Part surfacing is uniformly removed.
Roller type magnetorheological finishing device of the present invention compared with prior art, has the following advantages with method：
1, the polishing method for using to the polissoir innovation formula that the present invention designs roller type, is driven using a motor
Single unit system simplifies the overall structure of traditional equipment so that device structure is more compact, occupied space smaller.
2, by helical gear drive mechanism carrier fluid slot along guide rail is done reciprocating linear motion, can avoid because magnetic field is strong
Degree is unevenly distributed so that the low problem of workpiece regional area material removing rate, improves processing efficiency on the whole, and it is described forever
The magnetic pole outer end of magnet is spherical structure and towards buff spindle inner surface, and workpiece polished surface described in face, but also workpiece
The polishing effect at edge is more preferable, improves the surface figure accuracy of workpiece.
3, it is mounted with blade in polishing shaft end, magnetorheological fluid is stirred by blade, further promotes cycle
Flowing also ensures the stability of magnetorheological fluid internal particle distribution, and simplifies the structure of equipment so that whole equipment knot
Structure is compacter.
Description of the drawings：
Fig. 1 is the stereogram of roller type magnetorheological finishing device provided by the invention；
Fig. 2 is the front view that roller type magnetorheological finishing device shown in FIG. 1 does not include motor；
Fig. 3 is the vertical view that roller type magnetorheological finishing device shown in FIG. 1 does not include motor；
Fig. 4 is the stereogram at another visual angle of roller type magnetorheological finishing device provided by the invention；
Fig. 5 is the partial perspective view of magnet frame and buff spindle in Fig. 4；
Fig. 6 is that the complete of motor and the LOOK LEFT after transmission mechanism is removed in roller type magnetorheological finishing device shown in FIG. 1
Sectional view.
In the present embodiment：1- Worm and worm-wheel gearings, 2- helical gear drive mechanisms, 3- magnet frames, 4- buff spindles, 5-
Carrier fluid slot, 6- eccentric wheels, 7- guide rails, 8- springs, 9- motors, 10 shaft couplings, 11- bearing blocks, 12 partition boards, 13- blades, 14- works
Part, 15- racks, 16- sliding blocks, the non-magnetic fixtures of 17-, 18- permanent magnets, 19- worm gears, 20- helical gears.
Specific implementation mode：
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
As shown in figs. 1,2 and 6, a kind of roller type Magnetorheological Polishing with single motor driving provided by the invention fills
It sets, long and narrow workpiece planarization can be processed, including：Rack 15, carrier fluid slot 5, buff spindle 4, permanent magnet 18 and transmission mechanism, the load
Magnetorheological fluid is housed, workpiece 14 is fixed on the carrier fluid slot 5 by the non-magnetic fixture 17 in carrier fluid slot 5 in liquid bath 5
Medial surface, the buff spindle 4 are located at the top of the carrier fluid slot 5 and stretch into vertically in the carrier fluid slot 5, make workpiece 14 and polishing
Axis 4 immerses in magnetorheological fluid, increases the contact area of workpiece 14 and magnetorheological fluid, so that material removing rate higher.
The permanent magnet 18 is fixed in such a way that level protrudes out in a magnet frame 3, and is placed in the buff spindle 4, the magnet frame 3
It is connect with 4 external stability of the buff spindle, the magnetic pole outer end of the permanent magnet 18 is spherical structure, and magnetic pole outer end face
Workpiece polished surface, further, the horizontal distance of the top edge of the magnetic pole outer end and the inner surface of the buff spindle 4 is 3
~5mm, the outer surface of the buff spindle 4 are 3~5mm with the horizontal distance of workpiece polished surface.As shown in figure 5, the polishing
The end of axis 4 is connected with blade 13, can be stirred to magnetorheological fluid.Replace electromagnet that can not only reduce using permanent magnet 18
The volume of device reduces working space, can also simplify apparatus structure, is convenient for breakdown maintenance.
As shown in Figure 1, Figure 2 and Figure 4, the bottom surface of the carrier fluid slot 5 is equipped with guide rail 7, and the sliding block 16 coordinated with guide rail 7 is solid
It is scheduled in rack 15, the side of the carrier fluid slot 5 is connect by spring 8 with the rack 15, and the other side connects a partition board 12, institute
It states partition board 12 and connects an eccentric wheel 6, and be close to the eccentric wheel 6, the transmission mechanism includes Worm and worm-wheel gearing 1 and spiral shell
Gear drive 2, the Worm and worm-wheel gearing 1 and the helical gear drive mechanism 2 is revolved by the driving of same motor 9 to be turned
It is dynamic, fixation is attached by shaft coupling 10 and bearing block 11 respectively.As shown in Figure 1, Figure 2 and Figure 3, the Worm Wheel System machine
Structure 1 is engaged by a pair of of worm and gear, drives the buff spindle 4 to rotate by worm gear 19, the helical gear drive mechanism 2 passes through
A pair of of helical gear 20 engages to drive the eccentric wheel 6, and then partition board 12 is pushed to make the carrier fluid slot 5 in guide rail 7 and sliding block
It does reciprocating linear motion under 16 cooperation.The material of most of part is non-magnet material in burnishing device, avoids polishing process
In it is affected by magnetic fields and bad result occur.
It is polished, is included the following steps using above-mentioned roller type magnetorheological finishing device：
(1) workpiece is mounted on non-magnetic fixture, is fixed on carrier fluid slot medial surface, buff spindle is immersed in carrier fluid slot
Magnetorheological fluid in, adjust buff spindle and workpiece relative position, make workpiece about buff spindle axisymmetrical be distributed；
(2) permanent magnet is fixed in magnet frame, is put into buff spindle vertically, adjust the magnetic pole that permanent magnet is spherical structure
Be setting value with the spacing of buff spindle inner surface, to make the magnetic flux density of workpiece surface be 0.2-0.5T, adjust buff spindle with
The spacing of workpiece polished surface is setting value；
(3) start motor, worm and gear and helical gear is driven to rotate synchronously, buff spindle rotation and carrier fluid slot is made back and forth to move
Dynamic, the straight reciprocating stroke for adjusting carrier fluid slot is 100mm；
(4) under the compound action of the movement of carrier fluid slot and buff spindle rotation, workpiece is polished 60 minutes, realizes workpiece surface
The removal of material；
(5) polishing terminates, and shuts down motor, workpiece spindle and carrier fluid slot stop motion, takes magnet frame away, by workpiece from non-magnetic
It is unloaded in fixture, workpiece is made to leave magnetorheological fluid.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in previous embodiment, either which part or all technical features are equal
It replaces；And these modifications or replacements, model defined by the claims in the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (4)
1. a kind of roller type magnetorheological finishing device, which is characterized in that including：Rack, carrier fluid slot, buff spindle, permanent magnet, and pass
Motivation structure, magnetorheological fluid is equipped in the carrier fluid slot, and workpiece is fixed on the load by the non-magnetic fixture in carrier fluid slot
The medial surface of liquid bath, the buff spindle are located at the top of the carrier fluid slot and stretch into vertically in the carrier fluid slot, the permanent magnet
It is fixed in a magnet frame, and is placed in the buff spindle in such a way that level protrudes out, outside the magnet frame and the buff spindle
Portion is fixedly connected, the magnetic pole outer end of the permanent magnet be spherical structure and with workpiece polished surface face, the magnetic pole outer end
The horizontal distance of top edge and the buff spindle inner surface is 3~5mm, outer surface and the workpiece polished surface of the buff spindle
Horizontal distance is 3~5mm, and the bottom surface of the carrier fluid slot is equipped with guide rail, is arranged in the rack with the sliding block of guide rail cooperation,
The side of the carrier fluid slot is connect by spring with the rack, and the other side is connected with partition board, and the partition board connects an eccentric wheel,
The transmission mechanism includes Worm and worm-wheel gearing and helical gear drive mechanism, and the Worm and worm-wheel gearing passes through snail
Wheel drives the buff spindle rotation, the helical gear drive mechanism to drive the eccentric wheel and then partition board is pushed to make the carrier fluid
Slot does reciprocating linear motion under the cooperation of guide rail and sliding block.
2. roller type magnetorheological finishing device as described in claim 1, it is characterised in that：The Worm and worm-wheel gearing and
The helical gear drive mechanism is connected and fixed by same motor-driven rotation, and by shaft coupling and bearing block.
3. roller type magnetorheological finishing device as described in claim 1, it is characterised in that：The polishing the tip of the axis is connected with
Blade.
4. the method that roller type magnetorheological finishing device as described in claim 1 is polished, which is characterized in that including following
Step：
Step 1 is mounted on workpiece on non-magnetic fixture, is fixed on carrier fluid slot medial surface, buff spindle is immersed in carrier fluid slot
Magnetorheological fluid in, adjust buff spindle and workpiece relative position, make workpiece about buff spindle axisymmetrical be distributed；
Permanent magnet is fixed in magnet frame by step 2, is put into buff spindle vertically, and the magnetic pole that permanent magnet is spherical structure is adjusted
Be setting value with the spacing of buff spindle inner surface, to make the magnetic flux density of workpiece surface be 0.2-0.5T, adjust buff spindle with
The spacing of workpiece polished surface is setting value；
Step 3 starts motor, and worm and gear and helical gear is driven to rotate synchronously, and buff spindle rotation and carrier fluid slot is made back and forth to move
Dynamic, the straight reciprocating stroke for adjusting carrier fluid slot is 100mm；
Step 4, in the case where carrier fluid slot is mobile and the compound action of buff spindle rotation, workpiece is polished 60 minutes, realizes workpiece surface
The removal of material；
Step 5, polishing terminate, and shut down motor, workpiece spindle and carrier fluid slot stop motion, take magnet frame away, by workpiece from non-magnetic
It is unloaded in fixture, workpiece is made to leave magnetorheological fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611138930.9A CN106736879B (en) | 2016-12-12 | 2016-12-12 | A kind of roller type magnetorheological finishing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611138930.9A CN106736879B (en) | 2016-12-12 | 2016-12-12 | A kind of roller type magnetorheological finishing device and method |
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| CN106736879A CN106736879A (en) | 2017-05-31 |
| CN106736879B true CN106736879B (en) | 2018-10-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788937A (en) * | 2018-06-19 | 2018-11-13 | 东北大学 | A kind of rotary pole magnetorheological finishing device and method |
| CN114101722B (en) * | 2022-01-27 | 2022-06-28 | 南通永锠数控机械科技有限公司 | Numerical control machine tool with clamping center |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6503414B1 (en) * | 1992-04-14 | 2003-01-07 | Byelocorp Scientific, Inc. | Magnetorheological polishing devices and methods |
| WO1994004313A1 (en) * | 1992-08-14 | 1994-03-03 | Byelocorp Scientific, Inc. | Magnetorheological polishing devices and methods |
| US5951369A (en) * | 1999-01-06 | 1999-09-14 | Qed Technologies, Inc. | System for magnetorheological finishing of substrates |
| CN100469529C (en) * | 2007-01-12 | 2009-03-18 | 清华大学 | Integrated magnetic rheological polishing method of mould and parts |
| CN100436064C (en) * | 2007-02-15 | 2008-11-26 | 厦门大学 | Composite abrasion wheel for grinding and polishing |
| CN102284890A (en) * | 2011-09-26 | 2011-12-21 | 厦门大学 | Surface-shaped self-adaptive rotary-shaft symmetric optical component polishing device |
| CN103522129B (en) * | 2013-09-28 | 2016-04-06 | 浙江科惠医疗器械股份有限公司 | Medical titanium alloy small piece ultrasonic-magnetorheological compound finishing machine |
| CN206305892U (en) * | 2016-12-12 | 2017-07-07 | 东北大学 | A kind of roller type magnetorheological finishing device |
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