CN102794716A - Flexible grinding and polishing compound arc sand wheel - Google Patents
Flexible grinding and polishing compound arc sand wheel Download PDFInfo
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- CN102794716A CN102794716A CN2012102915010A CN201210291501A CN102794716A CN 102794716 A CN102794716 A CN 102794716A CN 2012102915010 A CN2012102915010 A CN 2012102915010A CN 201210291501 A CN201210291501 A CN 201210291501A CN 102794716 A CN102794716 A CN 102794716A
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- emery wheel
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Abstract
The invention discloses a flexible grinding and polishing compound arc sand wheel and relates to a sand wheel. The flexible grinding and polishing compound arc sand wheel comprises a sand wheel body, an air valve, an airbag arc-shaped adjustment device, an annular airbag, a grinding and polishing material ring and a compaction device, wherein an air channel is formed in the sand wheel body; the air valve is arranged in the air channel; the inner end of the air channel is communicated with an inner cavity in the annular airbag; the air channel is externally connected with an air source through the air valve; the airbag arc-shaped adjustment device is provided with a front airbag arc-shaped adjustment ring, a rear airbag arc-shaped adjustment ring and an adjustment drive screw rod; the front airbag arc-shaped adjustment ring and the rear airbag arc-shaped adjustment ring are respectively nested onto the rear end surface of the sand wheel body; the adjustment drive screw rod penetrates through the front airbag arc-shaped adjustment ring and the rear airbag arc-shaped adjustment ring as well as the sand wheel body and is in running fit with the sand wheel body; the front part and the rear part of the adjustment drive screw rod are in threaded fit with the front airbag arc-shaped adjustment ring and the rear airbag arc-shaped adjustment ring respectively; the annular airbag is sleeved and pressed onto the front airbag arc-shaped adjustment ring and the rear airbag arc-shaped adjustment ring; the grinding and polishing material ring is sleeved onto the annular airbag; a front pressure ring and a rear pressure ring of the compaction device are used for compacting the two end surfaces of the grinding and polishing material ring and the two end surfaces of the annular airbag respectively; and the front pressure ring and the rear pressure ring are fixedly connected with the front airbag arc-shaped adjustment ring and the rear airbag arc-shaped adjustment ring respectively.
Description
Technical field
The present invention relates to a kind of emery wheel, especially relate to the flexible grinding and polishing compound circular arc emery wheel of grinding of a kind of ultraprecise aspheric surface and polishing.
Background technology
The aperture aspherical lens have that bore is big, the picture element precision high and characteristics such as different in nature aperture, and the huge laser aid of inertial confinement fusion (ICF) is just realized the focusing of laser beam with the aperture aspherical lens.General two stages of experience of the processing of this type lens element, i.e. grinding and polishing.The surface figure accuracy of grinding stage principal security workpiece also reduces sub-surface damage, to reduce the removal amount in polishing stage; The polishing stage is mainly removed sub-surface damage, further reduces workpiece surface figure accuracy and surface roughness.
Because adopting traditional diamond arc diamond wheel grinding aspheric surface is fragility processing, emery wheel hardness is very high, so can on workpiece, stay sub-surface damage after the grinding, has so just influenced the efficient in polishing stage.At present, the small abrasive nose polishing mode is mainly adopted in aspheric polishing, but adopt such polishing mode very easily to produce the intermediate frequency error.Because the high power solid-state laser system requirements in the inertial confinement fusion ICF device carries out the control of total space frequency range to the wavefront quality of its optical elements of large caliber that adopts; Especially the wavefront error of element Mid Frequency; This is because the focused on power of thread destruction that light beam high frequency modulated that wavefront error causes and non-linear gain can cause optical element and reduction light beam; As far as extreme ultraviolet or emerging X ray optics, the small angle scattering that the Mid Frequency error produces can greatly reduce the resolution ratio of optical system.
Document (Guo Yinbiao, etc. based on the novel flexible emery wheel research [J] of high efficient grinding. University Of Chongqing's journal: natural science edition, 2000,23 (1): propose a kind of novel flexible abrasive wheel 9-11), and make an experiment, obtain good result.But said flexible abrasive wheel is a flat-faced wheel, can not be used for high-precision axial symmetry, non-axisymmetric aspheric surface processing.
Document (Z.M.Bzymek; Deng .Design of Flexible Grinding Wheel With Variable Hub Thickness [J] .Transactions of the ASME; 1994,117 (5): the method for designing that has proposed a kind of hole type flexible abrasive wheel 260-265).This hole type flexible abrasive wheel manufacture process requirement is very high, and manufacture difficulty is big, and can not process the aspheric surface workpiece.
Summary of the invention
The object of the present invention is to provide a kind of sub-surface damage and grinding and polishing compound circular arc emery wheel of the intermediate frequency error in the polishing process that can obviously reduce in the aspheric surface grinding.
The present invention is provided with emery wheel main body, air valve, air bag arc adjusting device, annular air-pocket, grinding and polishing band of material and hold down gag;
Be provided with air flue in the emery wheel main body, air valve is located in the air flue, and air flue is inner to be communicated with the annular air-pocket inner chamber, and air flue is through the external source of the gas of air valve; Air bag arc adjustment ring, rear gasbag arc adjustment ring and adjustment drive screw before air bag arc adjusting device is provided with; Preceding air bag arc adjustment ring is nested in emery wheel body front end face; Rear gasbag arc adjustment ring is nested in emery wheel body rear face; Air bag arc adjustment ring, emery wheel main body and rear gasbag arc adjustment ring before the adjustment drive screw passes vertically; Adjustment drive screw and emery wheel main body are rotatably assorted, the anterior and preceding air bag arc adjustment of adjustment drive screw ring threaded engagement, and adjustment drive screw rear portion cooperates with rear gasbag arc adjustment ring reverse thread; On air bag arc adjustment ring and the rear gasbag arc adjustment ring, the grinding and polishing band of material was enclosed within on the annular air-pocket before the annular air-pocket cover was pressed in; Pressure ring and back pressure ring before hold down gag is provided with, preceding pressure ring compresses grinding and polishing band of material both ends of the surface and annular air-pocket both ends of the surface respectively with the back pressure ring, and preceding pressure ring all is connected with preceding air bag arc adjustment ring and rear gasbag arc adjustment ring respectively through trip bolt with the back pressure ring.
Said preceding air bag arc adjustment ring and the best and emery wheel main body axial sliding fit of rear gasbag arc adjustment ring.
Said grinding and polishing band of material can be made up of hard rubber layer, finishing rubber layer and abrasive band; Hard rubber layer cover is pressed in said annular air-pocket surface, and the finishing rubber layer is enclosed within the hard rubber laminar surface, and the abrasive band cover is pressed in finishing rubber layer surface.
Said grinding and polishing band of material can be the polishing packing ring, and the material of polishing packing ring can adopt polyurethane.
Be equipped with sealing gasket between said annular air-pocket and preceding air bag arc adjustment ring and the rear gasbag arc adjustment ring.
Said adjustment drive screw and emery wheel main body are rotatably assorted, and preferably in the emery wheel main body, are provided with the bearing of 2 symmetric arrangement, and 2 bearings all are enclosed within on the adjustment drive screw, and the adjustment drive screw is rotatably assorted through these 2 bearings and emery wheel main body; Preferably also be arranged with 2 circlips on the adjustment drive screw, circlip is used for the location of bearing, prevents the axial motion of bearing.
Compare with prior art, application of the present invention has following outstanding advantage:
Owing to adopt said structure, through rotating the adjustment drive screw, the spacing between preceding air bag arc adjustment ring and the rear gasbag arc adjustment ring can obtain adjustment, can make annular air-pocket obtain the different arcs radius like this.Because preceding air bag arc adjustment ring is opposite with the thread rotary orientation of rear gasbag arc adjustment ring, thus the two direction of motion is opposite, displaced plate together.Can make annular air-pocket obtain the different arcs radius like this, after adjusting to the arc radius that needs, fix, can prevent to add to go here and there man-hour and move, guarantee that the arc radius of annular air-pocket is constant through hold down gag.Because the arc radius of annular air-pocket is adjustable, can enlarge abrasive band processing active component, be convenient to process the workpiece of different curvature radius, and needn't change emery wheel; And can reach the rigidity of adjustment annular air-pocket through the pressure of Air Valve Control adjustment annular air blister cavities.Like this can be according to different processes, the choose reasonable the blowing pressure, thus can significantly reduce the sub-surface damage and the surface roughness of element to be processed, significantly improve material removing rate and surface figure accuracy, have operability and feasibility.Inflatable air bag is adopted in application of the present invention, no longer is " firmly " grinding during grinding, but real " soft " grinding, thereby effectively reduced sub-surface damage; Adopt the air bag polishing mode during polishing, the grinding wheel movement track is the parallel polishing path of raster pattern, can effectively avoid producing the intermediate frequency error like this; Controllability is high, and working (machining) efficiency is high.Also can reach technological requirement through the control the blowing pressure.The blowing pressure is big during roughing, and rigidity is big, and the removal amount is big, and the blowing pressure is little of to reduce sub-surface damage during fine finishining.Adopt application technology of the present invention to be specially adapted to the high accuracy non-spherical surface is carried out grinding and polishing.
Description of drawings
Fig. 1 is one of structural representation of the embodiment of the invention 1 (half sectional view).
Fig. 2 is two (forward sight outside drawings) of the structural representation of the embodiment of the invention 1.
Fig. 3 is the structural representation (partial sectional view) of the embodiment of the invention 2.
Fig. 4 is the grinding path sketch map of the embodiment of the invention 1.Fig. 4 also is the polishing path sketch map of embodiment 2 simultaneously.Said path sketch map promptly is flexible grinding and polishing compound circular arc grinding wheel movement track sketch map, and in Fig. 4, P representes workpiece to be processed, and arrow is represented grinding and polishing compound circular arc grinding wheel movement course bearing.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment application of the present invention is described further.
Present embodiment is used for grinding.
Referring to Fig. 1 and 2, the present invention is provided with emery wheel main body 1, air valve 16, air bag arc adjusting device, annular air-pocket 3, grinding and polishing band of material and hold down gag.
Be provided with air flue 101 in the emery wheel main body 1, air valve 16 is located in the air flue 101, and air flue 101 the inners are communicated with annular air-pocket 3 inner chambers 31, and air flue 101 is through air valve 16 external sources of the gas.Air bag arc adjustment ring 21, rear gasbag arc adjustment ring 22 and adjustment drive screw 12 before air bag arc adjusting device is provided with, adjustment drive screw 12 terminations are provided with knob 13.Preceding air bag arc adjustment ring 21 is nested in emery wheel main body 1 front end face, and rear gasbag arc adjustment ring 22 is nested in emery wheel main body 1 rear end face, and preceding air bag arc is adjusted ring 21 and all is slidingly matched vertically with emery wheel main body 1 with rear gasbag arc adjustment ring 22.Preceding air bag arc adjustment ring 21 all is connected with emery wheel main body 1 with dog screw 15 through limiting plate 14 with rear gasbag arc adjustment ring 22.Before air bag arc adjustment ring 21 all pass vertically with rear gasbag arc adjustment ring 22 through adjustment drive screw 12 before air bag arc adjustment ring 21, emery wheel main body 1 and rear gasbag arc adjustment ring 22; Adjustment drive screw 12 is rotatably assorted with emery wheel main body 1; Adjustment drive screw 12 anterior and preceding air bag arc adjustment ring 21 threaded engagement, adjustment drive screw 12 rear portions cooperate with rear gasbag arc adjustment ring 22 reverse threads.Annular air-pocket 3 covers are pressed in preceding air bag arc adjustment ring 21, and adjustment encircles on 22 with the rear gasbag arc, between annular air-pocket 3 and preceding air bag arc adjustment ring 21 and rear gasbag arc adjustment ring 22, is equipped with sealing gasket 7.10,2 bearings 10 of bearing that in emery wheel main body 1, are provided with 2 symmetric arrangement all are enclosed within on the adjustment drive screw 12, and adjustment drive screw 12 is rotatably assorted with emery wheel main body 1 through these 2 bearings 10.Also be arranged with 2 circlips 11 on the adjustment drive screw 12, circlip 11 is used for the location of bearing 10, prevents the axial motion of bearing 10.The grinding and polishing band of material is enclosed within on the annular air-pocket 3.The grinding and polishing band of material is made up of hard rubber layer 4, finishing rubber layer 5 and abrasive band 6, and hard rubber layer 4 cover are pressed in said annular air-pocket 3 surfaces, and finishing rubber layer 5 is enclosed within hard rubber layer 4 surface, and abrasive band 6 covers are pressed in finishing rubber layer 5 surfaces.Pressure ring 81 and back pressure ring 82 before hold down gag is provided with; Preceding pressure ring 81 is pressed on grinding and polishing band of material front and rear end respectively with back pressure ring 82, and preceding pressure ring 81 is all adjusted ring 21 with preceding air bag arc respectively through trip bolt 9 (only drawing 1) with back pressure ring 82 and is connected with rear gasbag arc adjustment ring 22.
During grinding, inflate toward annular air-pocket 3 through the air valve on the emery wheel main body 1 10.According to the arc radius of annular air-pocket 3, finishing rubber layer 5 is repaired.After finishing finishes, utilize air valve 10 venting, abrasive band 6 is installed on the finishing rubber layer 5, follow past annular air-pocket 3 inflations slowly, and the position in adjustment abrasive band 6, up to inflated.Adjustment dog screw 14, limiting plate 14 can be fixed preceding air bag arc adjustment ring 21 and rear gasbag arc adjustment ring 22 with emery wheel main body 1, prevent that string is moving.
Embodiment 2
Present embodiment is used for polishing processing.
Referring to Fig. 3, similar with embodiment 1, difference is: said grinding and polishing band of material adopts polyurethane for polishing packing ring 17, the material of polishing packing ring 17.All the other labels are corresponding consistent with embodiment 1.
During polishing, the abrasive band among the embodiment 16, finishing rubber layer 5 and hard rubber layer 4 are pulled down, kept annular air-pocket 3, on annular air-pocket 3, put polishing pad 17 again.Adjust the pressure of annular air-pocket 3, can adjust the rigidity of air bag 3, according to different processes, the choose reasonable the blowing pressure reduces sub-surface damage and surface roughness, improves material removing rate and surface figure accuracy.
Referring to Fig. 4, add and treat the intermediate frequency error that processing work P produces man-hour in order to prevent emery wheel (with label 1 representative), grinding is the raster pattern parallel path with the path (being grinding and polishing compound circular arc grinding wheel movement course bearing, shown in the arrow) of polishing processing.
Claims (6)
1. flexible grinding and polishing compound circular arc emery wheel is characterized in that being provided with emery wheel main body, air valve, air bag arc adjusting device, annular air-pocket, grinding and polishing band of material and hold down gag;
Be provided with air flue in the emery wheel main body, air valve is located in the air flue, and air flue is inner to be communicated with the annular air-pocket inner chamber, and air flue is through the external source of the gas of air valve; Air bag arc adjustment ring, rear gasbag arc adjustment ring and adjustment drive screw before air bag arc adjusting device is provided with; Preceding air bag arc adjustment ring is nested in emery wheel body front end face; Rear gasbag arc adjustment ring is nested in emery wheel body rear face; Air bag arc adjustment ring, emery wheel main body and rear gasbag arc adjustment ring before the adjustment drive screw passes vertically; Adjustment drive screw and emery wheel main body are rotatably assorted, the anterior and preceding air bag arc adjustment of adjustment drive screw ring threaded engagement, and adjustment drive screw rear portion cooperates with rear gasbag arc adjustment ring reverse thread; On air bag arc adjustment ring and the rear gasbag arc adjustment ring, the grinding and polishing band of material was enclosed within on the annular air-pocket before the annular air-pocket cover was pressed in; Pressure ring and back pressure ring before hold down gag is provided with, preceding pressure ring compresses grinding and polishing band of material both ends of the surface and annular air-pocket both ends of the surface respectively with the back pressure ring, and preceding pressure ring all is connected with preceding air bag arc adjustment ring and rear gasbag arc adjustment ring respectively through trip bolt with the back pressure ring.
2. flexible grinding and polishing compound circular arc emery wheel as claimed in claim 1 is characterized in that said preceding air bag arc adjustment ring and rear gasbag arc adjustment ring and the axial sliding fit of emery wheel main body.
3. flexible grinding and polishing compound circular arc emery wheel as claimed in claim 1 is characterized in that said grinding and polishing band of material is made up of hard rubber layer, finishing rubber layer and abrasive band; Hard rubber layer cover is pressed in said annular air-pocket surface, and the finishing rubber layer is enclosed within the hard rubber laminar surface, and the abrasive band cover is pressed in finishing rubber layer surface.
4. flexible grinding and polishing compound circular arc emery wheel as claimed in claim 1 is characterized in that said grinding and polishing band of material is the polishing packing ring, and the material of polishing packing ring can adopt polyurethane.
5. flexible grinding and polishing compound circular arc emery wheel as claimed in claim 1 is characterized in that between annular air-pocket and preceding air bag arc adjustment ring and rear gasbag arc adjustment ring, being equipped with sealing gasket.
6. flexible grinding and polishing compound circular arc emery wheel as claimed in claim 1 is characterized in that being provided with in the said emery wheel main body bearing of 2 symmetric arrangement, and 2 bearings all are enclosed within on the adjustment drive screw, and the adjustment drive screw is rotatably assorted through these 2 bearings and emery wheel main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291501.0A CN102794716B (en) | 2012-08-16 | 2012-08-16 | Flexible grinding and polishing compound arc sand wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210291501.0A CN102794716B (en) | 2012-08-16 | 2012-08-16 | Flexible grinding and polishing compound arc sand wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102794716A true CN102794716A (en) | 2012-11-28 |
| CN102794716B CN102794716B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210291501.0A Expired - Fee Related CN102794716B (en) | 2012-08-16 | 2012-08-16 | Flexible grinding and polishing compound arc sand wheel |
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| CN (1) | CN102794716B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344338A (en) * | 2017-08-30 | 2017-11-14 | 厦门理工学院 | A kind of cup air bag emery wheel of abrasive particle injection auxiliary |
| CN111015530A (en) * | 2019-11-28 | 2020-04-17 | 盐城工学院 | Titanium-based combined material milling process milling cutter is with wheel of polishing |
| CN111015372A (en) * | 2019-11-28 | 2020-04-17 | 盐城工学院 | Grinding method of milling cutter for milling titanium-based composite material |
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| JP2000117607A (en) * | 1998-10-12 | 2000-04-25 | Nikon Corp | Grinding tool |
| CN1754659A (en) * | 2004-09-29 | 2006-04-05 | 浙江工业大学 | Passive air sac pressure controlled flexible furbisher |
| CN1880017A (en) * | 2005-06-17 | 2006-12-20 | 浙江工业大学 | Electric pneumatic adjustable flexible polishing tool |
| KR20090055414A (en) * | 2007-11-28 | 2009-06-02 | 주식회사 실트론 | Wafer pressing apparatus of a polisher |
| CN101829945A (en) * | 2010-04-27 | 2010-09-15 | 浙江工业大学 | Main and auxiliary combined type air bag polishing tool |
| CN202088093U (en) * | 2010-10-29 | 2011-12-28 | 西安北方捷瑞光电科技有限公司 | Circular air bag polishing grinding head |
| CN102554749A (en) * | 2012-02-08 | 2012-07-11 | 厦门大学 | Dynamic load type flexible polishing head |
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2012
- 2012-08-16 CN CN201210291501.0A patent/CN102794716B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117607A (en) * | 1998-10-12 | 2000-04-25 | Nikon Corp | Grinding tool |
| CN1754659A (en) * | 2004-09-29 | 2006-04-05 | 浙江工业大学 | Passive air sac pressure controlled flexible furbisher |
| CN1880017A (en) * | 2005-06-17 | 2006-12-20 | 浙江工业大学 | Electric pneumatic adjustable flexible polishing tool |
| KR20090055414A (en) * | 2007-11-28 | 2009-06-02 | 주식회사 실트론 | Wafer pressing apparatus of a polisher |
| CN101829945A (en) * | 2010-04-27 | 2010-09-15 | 浙江工业大学 | Main and auxiliary combined type air bag polishing tool |
| CN202088093U (en) * | 2010-10-29 | 2011-12-28 | 西安北方捷瑞光电科技有限公司 | Circular air bag polishing grinding head |
| CN102554749A (en) * | 2012-02-08 | 2012-07-11 | 厦门大学 | Dynamic load type flexible polishing head |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344338A (en) * | 2017-08-30 | 2017-11-14 | 厦门理工学院 | A kind of cup air bag emery wheel of abrasive particle injection auxiliary |
| CN107344338B (en) * | 2017-08-30 | 2024-02-20 | 厦门理工学院 | Cup-shaped air bag grinding wheel with abrasive particle injection assistance function |
| CN111015530A (en) * | 2019-11-28 | 2020-04-17 | 盐城工学院 | Titanium-based combined material milling process milling cutter is with wheel of polishing |
| CN111015372A (en) * | 2019-11-28 | 2020-04-17 | 盐城工学院 | Grinding method of milling cutter for milling titanium-based composite material |
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| Publication number | Publication date |
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| CN102794716B (en) | 2014-09-03 |
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Granted publication date: 20140903 Termination date: 20200816 |