CN106863062B - A kind of hemispherical finishing grinding wheel for Ultra-precision Turning - Google Patents

A kind of hemispherical finishing grinding wheel for Ultra-precision Turning Download PDF

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Publication number
CN106863062B
CN106863062B CN201710100741.0A CN201710100741A CN106863062B CN 106863062 B CN106863062 B CN 106863062B CN 201710100741 A CN201710100741 A CN 201710100741A CN 106863062 B CN106863062 B CN 106863062B
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CN
China
Prior art keywords
grinding wheel
abrasive material
ultra
hemispherical
precision turning
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Expired - Fee Related
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CN201710100741.0A
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Chinese (zh)
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CN106863062A (en
Inventor
顾兴士
郭兵
王金虎
张春雨
赵清亮
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Jilin Shennongshi Robot Technology Co ltd
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Harbin Institute of Technology
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Publication of CN106863062A publication Critical patent/CN106863062A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/01Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/18Wheels of special form

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

A kind of hemispherical finishing grinding wheel for Ultra-precision Turning, the present invention relates to hemispherical finishing grinding wheels.The present invention is to solve all there is the inevitable polishing efficiency of finishing process is low in actual production, grinding cannot achieve the defect of free form surface finishing, system complex and it is expensive, the surface roughness after workpiece finishing is extremely difficult to the problem of ultraprecise precision is difficult to be widely used in the ultrahigh precision processing of aspherical optical element.The grinding wheel is made of abrasive material, grinding wheel base body and grinding wheel support element, and grinding wheel base body is made of hemisphere, fixed plate and location hole;Grinding wheel support element is made of positioning convex platform, support plate and pole wheel.The present invention is applied to hemispherical finishing grinding wheel field.

Description

A kind of hemispherical finishing grinding wheel for Ultra-precision Turning
Technical field
The present invention relates to hemispherical finishing grinding wheel, more particularly to a kind of hemispherical finishing grinding wheel for Ultra-precision Turning.
Background technology
Currently, the demand of the fields to aspherical optical element such as aerospace, medical treatment, astronomy and modern O-E Products is got over Come more urgent.From the point of view of machining, aspherical optical element has big material hardness, face shape complexity, geometric accuracy and light The features such as cleanliness is high, this has become the technical barrier in Ultra-precision Turning field.As last procedure in Ultra-precision Turning, Finishing is to determine the important link of non-spherical element surface roughness and finish.Traditional finishing process is to polish or grind, All there is the inevitable polishing efficiency of finishing process is low in actual production, grinding cannot achieve free form surface finishing Defect.
Existing finishing grinding wheel complicated in mechanical structure needs other corollary equipments when use, system complex and it is expensive, and Surface roughness after workpiece finishing is extremely difficult to ultraprecise precision.Therefore, existing finishing grinding wheel is difficult to be widely used in non- The ultrahigh precision of spherical optics element is processed.
Invention content
The purpose of the present invention is to solve all there is the inevitable polishing effects of finishing process in actual production Rate is low, and grinding cannot achieve the defect of free form surface finishing, system complex and it is expensive, the surface roughness after workpiece finishing is difficult Reach the problem of ultraprecise precision is difficult to be widely used in the ultrahigh precision processing of aspherical optical element, and a kind of use proposed In the hemispherical finishing grinding wheel of Ultra-precision Turning.
Above-mentioned goal of the invention is achieved through the following technical solutions:
A kind of hemispherical finishing grinding wheel for Ultra-precision Turning is made of abrasive material, grinding wheel base body and grinding wheel support element;
The grinding wheel base body is made of hemisphere, fixed plate and location hole, and hemisphere is arranged in fixed plate, in fixed plate It is the location hole that r depth is less than fixed plate thickness that radius is arranged at center;
The grinding wheel support element is made of positioning convex platform, support plate and pole wheel;
Positioning convex platform is located at the center of support plate upper end, pole wheel, the positioning convex platform heart coaxial with support plate, pole wheel It is used to support support plate;
The abrasive material is bonded in hemispheroidal surface, and the lower face of abrasive material and the upper surface of fixed plate setting first Gap;It is interference fit between positioning convex platform and location hole, the radius of location hole consistent with positioning convex platform radius is r, and is positioned The height of boss is less than the depth of location hole;The second gap is arranged with positioning convex platform in location hole;Wherein, spherical surface on the outside of abrasive material The radius of curvature R 2 of radius of curvature R 1, abrasive material inside spherical surface is equal to the hemispheroidal radius R of grinding wheel base body;The thickness of abrasive material Difference of the value equal to R1-R2;The radius value of fixed plate is equal to the radius value of support plate;Fixed plate is bonded in above support plate.
Invention effect
It is simple the present invention provides a kind of mechanical structure and practical, it can be achieved that deep camber non-spherical element Ultra-precision Turning Finishing grinding wheel.The outstanding feature of the present invention is that main part flexible substrate is combined with traditional grinding wheel abrasive material, worked Abrasive material will produce the micro removal of uncertainty similar to polishing and grinding to work surface in journey, have the function of finishing; The finishing under constant force can be realized by movement locus of making rational planning for, and then obtains preferable finishing effect;Abrasive material is fixed grinds Grain, the grain size of abrasive grain, which is 1 micron to 40 microns, can effectively improve material remove rate, and then improve finishing efficiency;Abrasive material is Hemispherical dome structure can carry out finishing to the non-spherical element of deep camber, be particularly suitable for the skin processing of concave surface;In abrasive material Abrasive material and the material of bonding agent type and grinding wheel base body all there are many selection, can be according to the material property of work surface Or desired finishing precision selects suitable abrasive material, bonding agent and basis material;By lower face and fixation that abrasive material is arranged The gap of the upper surface of plate and the gap of location hole and positioning convex platform prevent grinding wheel base body generate flexible deformation after abrasive material, Occur mutually to squeeze between grinding wheel base body and support element;The mechanical structure of the present invention is simple, is readily produced manufacture, does not need other Corollary equipment, use cost is low, can be widely applied in actual industrial production.
Description of the drawings
Fig. 1 is the hemispherical finishing grinding wheel structure schematic diagram for the Ultra-precision Turning that specific implementation mode one proposes;
Fig. 2 is the sectional view for the abrasive material layer segment that specific implementation mode one proposes;
Fig. 3 (a) is the axonometric drawing for the grinding wheel base body part that specific implementation mode one proposes;
Fig. 3 (b) is the sectional view for the grinding wheel base body part that specific implementation mode one proposes;
Fig. 4 is the axonometric drawing for the grinding wheel support element part that specific implementation mode one proposes.
Specific implementation mode
Specific implementation mode one:A kind of hemispherical finishing grinding wheel for Ultra-precision Turning of present embodiment, specifically by Abrasive material 1, grinding wheel base body 2 and grinding wheel support element 3 form as shown in Figure 1;
The grinding wheel base body 2 is made of hemisphere 2-1, fixed plate 2-2 and location hole 2-3 shown in Fig. 3 a and b, hemisphere 2-1 is arranged on fixed plate 2-2, and it is the location hole 2- that r depth is less than fixed plate thickness that radius is arranged at the centers fixed plate 2-2 3;
The grinding wheel support element 3 is made of positioning convex platform 3-1, support plate 3-2 and pole wheel 3-3;
Positioning convex platform 3-1 is located at the center of the upper ends support plate 3-2, pole wheel 3-3, positioning convex platform 3-1 and support plate The coaxial hearts of 3-2, pole wheel 3-3 are used to support support plate 3-2 such as Fig. 4;
The abrasive material 1 is bonded in the surface of hemisphere 2-1, and the upper surface of the lower face of abrasive material 1 and fixed plate 2-2 First gap 4 is set;It is interference fit, the radius and positioning convex platform of location hole 2-3 between positioning convex platform 3-1 and location hole 2-3 3-1 radiuses are unanimously r, and the height of positioning convex platform 3-1 is less than the depth of location hole 2-3;Location hole 2-3 and positioning convex platform 3-1 The second gap of setting 5;It can be ground according in the applicable abrasive material 1 of the specific requirement of finishing or the material property selection of workpiece to be added Material and the type of bonding agent and the material type and elasticity number of grinding wheel base body 2;Wherein, abrasive material 1 is with certain thickness ball The center of circle of Crown structure, outside spherical surface and inside spherical surface is in same point;The radius of curvature R 1 of 1 outside spherical surface of abrasive material is less than to be added The radius of curvature of any point on work surface, the radius of curvature R 2 of 1 inside spherical surface of abrasive material are equal to the hemisphere 2-1's of grinding wheel base body Radius R;The thickness value of abrasive material 1 is equal to difference such as Fig. 2 of R1-R2;Half of the radius value of fixed plate 2-2 equal to support plate 3-2 Diameter value;The material of grinding wheel base body 2 is rubber or elastic resin;Fixed plate 2-2 is bonded in above support plate 3-2;The support plate Play the role of the fixed grinding wheel base body, pole wheel is the coupling part of grinding wheel and electric main shaft.
Present embodiment effect:
It is simple present embodiments provide for a kind of mechanical structure and practical, it can be achieved that deep camber non-spherical element ultraprecise The finishing grinding wheel of processing.The outstanding feature of present embodiment is that main part flexible substrate is combined with traditional grinding wheel abrasive material, Abrasive material will produce the micro removal of uncertainty similar to polishing and grinding to work surface during the work time, have finishing Effect;The finishing under constant force can be realized by movement locus of making rational planning for, and then obtains preferable finishing effect;Abrasive material is Fixation abrasive grain, the grain size of abrasive grain, which is 1 micron to 40 microns, can effectively improve material remove rate, can effectively improve the removal of material Rate, and then improve finishing efficiency;Abrasive material is hemispherical dome structure, can carry out finishing to the non-spherical element of deep camber, especially Skin processing suitable for concave surface;All there are many choosings for abrasive material and the material of bonding agent type and grinding wheel base body in abrasive material It selects, suitable abrasive material, bonding agent and matrix material can be selected according to the material property of work surface or the finishing precision of requirement Material;It is anti-by gap and the gap of location hole and positioning convex platform that the lower face of abrasive material and the upper surface of fixed plate is arranged Only grinding wheel base body occurs mutually to squeeze between abrasive material, grinding wheel base body and support element after generating flexible deformation;Present embodiment Mechanical structure is simple, is readily produced manufacture, does not need other corollary equipments, and use cost is low, can be widely applied to practical work In industry production.
Specific implementation mode two:The present embodiment is different from the first embodiment in that:The thickness value of the abrasive material 1 Ranging from 5~10mm;Abrasive material 1 is made of abrasive material and bonding agent, and wherein abrasive material is diamond, cubic boron nitride, silicon carbide Or one kind in corundum, bonding agent type are one kind in metal, ceramics or resin.Other steps and parameter and specific embodiment party Formula one is identical.
Specific implementation mode three:The present embodiment is different from the first and the second embodiment in that:Bond the abrasive material 1 Be bonded in the binder used in support plate 3-2 with binder, the fixed plate 2-2 used in hemisphere 2-1 and be adhesively fixed plate 2-2 and Binder used in support plate 3-2 is high-temperature plastic, and wherein high-temperature plastic is fire resistant epoxy class adhesive or high temperature resistance phenolic aldehyde Resinae adhesive.Other steps and parameter are the same as one or two specific embodiments.
Specific implementation mode four:Unlike one of present embodiment and specific implementation mode one to three:The abrasive material 1 The first gap 4 is arranged is 0.02R~0.1R the upper surface of lower face and fixed plate 2-2.Other steps and parameter and specific reality It is identical to apply one of mode one to three.
Specific implementation mode five:Unlike one of present embodiment and specific implementation mode one to four:The fixed plate The structure of 2-2 is cylindrical thin plate.Other steps and parameter are identical as one of specific implementation mode one to four.
Specific implementation mode six:Unlike one of present embodiment and specific implementation mode one to five:The fixed plate The thickness of 2-2 is 0.1R~0.2R.Other steps and parameter are identical as one of specific implementation mode one to five.
Specific implementation mode seven:Unlike one of present embodiment and specific implementation mode one to six:The location hole 2-3 is blind cylindrical hole, and location hole 2-3 shapes can also be the cylindricality blind hole of other polygons, other polygons can be four Side shape, pentagon, hexagon etc..Other steps and parameter are identical as one of specific implementation mode one to six.
Specific implementation mode eight:Unlike one of present embodiment and specific implementation mode one to seven:The location hole It is 1~3mm that the second gap 5, which is arranged, in 2-3 and positioning convex platform 3-1.Other steps and one of parameter and specific implementation mode one to seven It is identical.
Specific implementation mode nine:Unlike one of present embodiment and specific implementation mode one to eight:The grinding wheel branch The material of support member 3 is aluminium alloy or steel alloy, plays the role of positioning and fixing the grinding wheel base body, and connection grinding wheel and electricity The part of dynamic main shaft;The structure of support plate 3-2 is cylindrical thin plate, and cylindrical lamella thickness is 0.15R~0.3R, pole wheel 3- 3 radius is 0.1R~R.Other steps and parameter are identical as one of specific implementation mode one to eight.
Specific implementation mode ten:Unlike one of present embodiment and specific implementation mode one to nine::The radius r For 0.05R~0.2R.Other steps and parameter are identical as one of specific implementation mode one to nine.

Claims (10)

1. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning, it is characterised in that a kind of hemispherical for Ultra-precision Turning Finishing grinding wheel is made of abrasive material (1), grinding wheel base body (2) and grinding wheel support element (3);
The grinding wheel base body (2) is made of hemisphere (2-1), fixed plate (2-2) and location hole (2-3), hemisphere (2-1) setting In fixed plate (2-2), it is the location hole (2- that r depth is less than fixed plate thickness that radius is arranged at the center fixed plate (2-2) 3);
The grinding wheel support element (3) is made of positioning convex platform (3-1), support plate (3-2) and pole wheel (3-3);
Positioning convex platform (3-1) is located at the center of the upper end support plate (3-2), pole wheel (3-3), positioning convex platform (3-1) and branch Fagging (3-2) coaxial heart, pole wheel (3-3) are used to support support plate (3-2);
The abrasive material (1) is bonded in the surface of hemisphere (2-1), and the lower face of abrasive material (1) and fixed plate (2-2) is upper The first gap (4) are arranged in end face;It is interference fit between positioning convex platform (3-1) and location hole (2-3), the half of location hole (2-3) Diameter consistent with positioning convex platform (3-1) radius is r, and the height of positioning convex platform (3-1) is less than the depth of location hole (2-3);Positioning The second gap (5) are arranged with positioning convex platform (3-1) in hole (2-3);Wherein, the radius of curvature R 1 of abrasive material (1) outside spherical surface, abrasive material The radius of curvature R 2 of spherical surface is equal to the radius R of the hemisphere (2-1) of grinding wheel base body on the inside of layer (1);The thickness value etc. of abrasive material (1) In the difference of R1-R2;The radius value of fixed plate (2-2) is equal to the radius value of support plate (3-2);Fixed plate (2-2) is bonded in branch Fagging (3-2) is above.
2. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning according to claim 1, it is characterised in that:The abrasive material Ranging from 5~10mm of the thickness value of layer (1);Abrasive material (1) is made of abrasive material and bonding agent.
3. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning according to claim 1, it is characterised in that:Bond institute State the binder used in abrasive material (1) and hemisphere (2-1), fixed plate (2-2) is bonded in binder used in support plate (3-2) And the binder being adhesively fixed used in plate (2-2) and support plate (3-2) is high-temperature plastic, wherein high-temperature plastic is high-temperature resistant epoxy Oxygen class adhesive or thermostable phenolic resin class adhesive.
4. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning according to claim 1, it is characterised in that:The abrasive material The first gap (4) of the lower face of layer (1) and the upper surface of fixed plate (2-2) is 0.02R~0.1R.
5. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning according to claim 1, it is characterised in that:The fixation The structure of plate (2-2) is cylindrical thin plate.
6. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning according to claim 1, it is characterised in that:The fixation The thickness of plate (2-2) is 0.1R~0.2R.
7. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning according to claim 1, it is characterised in that:The positioning Hole (2-3) is blind cylindrical hole.
8. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning according to claim 1, it is characterised in that:The positioning Hole (2-3) is 1~3mm with positioning convex platform (3-1) setting the second gap (5).
9. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning according to claim 1, it is characterised in that:The grinding wheel The material of support element (3) is aluminium alloy or steel alloy;The structure of support plate (3-2) is cylindrical thin plate, cylindrical lamella thickness Radius for 0.15R~0.3R, pole wheel (3-3) is 0.1R~R.
10. a kind of hemispherical finishing grinding wheel for Ultra-precision Turning according to claim 1, it is characterised in that:Described half Diameter r is 0.05R~0.2R.
CN201710100741.0A 2017-02-23 2017-02-23 A kind of hemispherical finishing grinding wheel for Ultra-precision Turning Expired - Fee Related CN106863062B (en)

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CN110497308A (en) * 2018-05-16 2019-11-26 吉林博仁科技有限责任公司 A kind of light decorations abrasive material of sensor connector
DE102019005294A1 (en) * 2019-01-17 2020-07-23 Schneider Gmbh & Co. Kg Polishing tool and device for polishing a workpiece

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0497008A2 (en) * 1991-02-01 1992-08-05 Erwin Junker Process and apparatus for grinding cams or the like
CN1772436A (en) * 2004-11-09 2006-05-17 精工爱普生株式会社 Elastic polishing tool and lens polishing method
CN102198622A (en) * 2011-03-23 2011-09-28 西安交通大学 Novel large-caliber optical aspheric curved surface processing grinder structure
CN102717343A (en) * 2012-06-11 2012-10-10 哈尔滨工业大学 Ball-head milling and grinding tool with chip pockets
CN104325417A (en) * 2014-10-28 2015-02-04 浙江工业大学 Hemispherical pneumatic grinding wheel electrostatic sand-planting system with abrasive particle detection
CN104999384A (en) * 2015-08-12 2015-10-28 丹阳市超宇五金磨具有限公司 Spherical grinding wheel
CN105437091A (en) * 2015-11-11 2016-03-30 郑州磨料磨具磨削研究所有限公司 Large-pore resin binder superhard material grinding wheel for stainless steel end face grinding and manufacturing method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0497008A2 (en) * 1991-02-01 1992-08-05 Erwin Junker Process and apparatus for grinding cams or the like
CN1772436A (en) * 2004-11-09 2006-05-17 精工爱普生株式会社 Elastic polishing tool and lens polishing method
CN102198622A (en) * 2011-03-23 2011-09-28 西安交通大学 Novel large-caliber optical aspheric curved surface processing grinder structure
CN102717343A (en) * 2012-06-11 2012-10-10 哈尔滨工业大学 Ball-head milling and grinding tool with chip pockets
CN104325417A (en) * 2014-10-28 2015-02-04 浙江工业大学 Hemispherical pneumatic grinding wheel electrostatic sand-planting system with abrasive particle detection
CN104999384A (en) * 2015-08-12 2015-10-28 丹阳市超宇五金磨具有限公司 Spherical grinding wheel
CN105437091A (en) * 2015-11-11 2016-03-30 郑州磨料磨具磨削研究所有限公司 Large-pore resin binder superhard material grinding wheel for stainless steel end face grinding and manufacturing method thereof

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