CN104084853B - A kind of complicated track polishing equipment for Natural Diamond Tools sharpening - Google Patents
A kind of complicated track polishing equipment for Natural Diamond Tools sharpening Download PDFInfo
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- CN104084853B CN104084853B CN201410342210.9A CN201410342210A CN104084853B CN 104084853 B CN104084853 B CN 104084853B CN 201410342210 A CN201410342210 A CN 201410342210A CN 104084853 B CN104084853 B CN 104084853B
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- main shaft
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- sharpening
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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
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/60—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of tools not covered by the preceding subgroups
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- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
For a complicated track polishing equipment for Natural Diamond Tools sharpening, it relates to accurate and Ultraprecision Machining field. This equipment solves that current diamond cutter sharpening equipment running orbit is single, manipulation is complicated, the easily dissatisfactory problem of aging, processing stability of equipment. Thrust air-bearing is installed on described lathe bed, thrust air-bearing inside is provided with air-floating main shaft axle system, main shaft mounting plate is installed on main shaft top, and main shaft mounting plate is installed together with thrust air-bearing by precise guide rail is secondary, and described thrust air-bearing is provided with the second positioning and locking screw; Eccentric wheel is rotatably connected with connecting rod, locking support is packed in eccentric bottom, and aligning leading screw is arranged on locking support, and driving shaft is connected with aligning threads of lead screw, driving shaft utilizes gathering sill to contact with eccentric wheel, and the first lock-screw links together main shaft bottom plate, eccentric wheel and connecting rod. The present invention is for the complicated track polishing processing of Natural Diamond Tools.
Description
Technical field
The present invention relates to accurate and Ultraprecision Machining field, relate to more specifically a kind of day for naturalThe complicated track polishing equipment of diamond cutter sharpening.
Background technology
Accurate and Ultraprecision Machining is one of most important part in machinery manufacturing industry, and this is because essenceClose and Ultraprecision Machining not only directly affects the development of sophisticated technology and national defense industry, but also shadowRing precision and the surface quality of civilian engineering goods, affecting the international competitiveness of product. Each in recent yearsPlant new technology, such as microelectric technique, computer technology, automatic control technology, laser technology etc. are in essenceIn close processing, be used widely, make precision and Ultraprecision Machining produce rapid development,Its technology looks are greatly improved. Various product permissible accuracy improves constantly, and impels Precision Machining skillArt level develops rapidly, and precision accurate and ultraprecise processing is also improving constantly. In the 1950's,The precision level that Precision Machining can reach is 3-5 μ m, and it is 1 μ m that ultraprecise is processed the machining accuracy that can reach.To 20 century 70 later stages, the precision level that Precision Machining can reach is 1 μ m, and ultraprecise processing can reachTo machining accuracy be 0.1 μ m; And the precision level that Precision Machining can reach is now 0.1 μ m, ultrapreciseThe machining accuracy that processing can reach is 0.01-0.001 μ m. It is accurate and super that development is all paid much attention in countries in the worldPrecision processing technology, using it as the content of first developing developing in advanced manufacturing technology.
Along with application and the popularization of Ultraprecision Machining, in the time of nearly decades, machining essenceDegree has been enhanced 1-3 the order of magnitude, and the higher nano-precision development of forward. Due to ultraprecise processing skillArt occupies very consequence in national defence field, the U.S., Japan, Britain, Germany and the west such as RussianIndustrially developed country of side has all listed ultraprecise and nanofabrication technique in the industry meter that 21 century first developsDraw, make it not only to become the focus of academic research, once and break through and form core technology and rise to again stateThe important symbol of family's manufacturing industry highest level, and bring new growth point for the development of national economy. Due toUltraprecision Machining relates to national defence hard-core technology and huge economic interests, west industrially developed countryAll to develop alone and technical know-how mutually, to China's blockade on new techniques especially. Therefore, China also must be certainlyThe key technology of row research and development ultraprecise processing.
For Ultra-precision machining technique, obtain high accuracy and the processing table of part shape sizeThe ultra-smooth of face, except having ultraprecise lathe, high-resolution detecting instrument and overstableBeyond processing environment condition, also must possess the high accuracy Natural Diamond Tools that carries out machining, especiallyIt is high-precision arc-blade diamond cutter. Because the cutting edge radius of curvature of arc-blade diamond cutter is protectedHold constant, on sword each cutting point all can participate in cutting, this sphere for machining high-precision or aspheric curvePart is most important. Known according to consulting pertinent literature, adopt the circle that rounded cutting edge radius is 60-70nmArc blade diamond cutter can make the machining surface roughness Ra of smallclothes KDP crystal drop to below 5nm. ByThis is visible, and tool sharpening quality has vital impact to the surface roughness of processing parts.
But diamond crystal, with features such as its exclusive high rigidity, wear-resistant, difficult welding, makes diamondThe preparation of cutter is more difficult. Just current China does not also have the Grinding Circular Arc Diamond Cutting Tool equipment of mouldingAnd in the situation of coherent detection equipment, to the research of Grinding Circular Arc Diamond Cutting Tool technique and sharpening mechanismCan only rest on relatively superficial level. Along with product for civilian use serviceability and national defence weapon model precision,Improving constantly of the indexs such as reliability, hit rate and service life, China leans on the external circle of import substantiallyArc blade diamond cutter meets and supports the Ultra-precision machining technology of the army and the people's product urgent need, import cutterTool is not only expensive, and its grinding quality does not reach highest level yet. Rounded cutting edge radius is less than 50nmHigh-precision arc-blade diamond cutter, abroad always embargo. In addition, for diamond cutter cutting edgeFinishing with reface, China also relies on external technology substantially, the recycling rate of waterused of cutter is extremely low. CauseThis, rely on the technical force of self to study sharpening mechanism and the tool dresser of high-precision arc-blade diamond cutterSkill, relevant Tool Design criterion and Tool in Cutting performance optimization etc., for improving China's ultra precision cuttingThe integral level of process technology and meet military and civilian's product Ultra-precision machining high-precision arc-blade Buddha's warrior attendantThe market demand of stone cutter has important theory significance and practical value.
According to related documents, Osaka, Japan university and the (Lawrence of LLL National Laboratory of the U.S.LivermoreNationalLaboratory) cooperate, studied about non-ferrous metal in 1986The minimum thickness of cut of ultra-precise cutting processing, they have realized minimum cutting on ultra-precise cutting latheThickness is the single-point diamond cutting of lnm, and is calculated and pointed out by theory, realize minimum thickness of cut and beThe continuous cutting of lnm, the rounded cutting edge radius of diamond cutter must remain on 3-5nm. Above-mentioned researchAchievement has been pushed the limit to the technical merit of Ultra-precision machining on the one hand, fully shows on the other handGone out abroad high-precision diamond cutter prepare aspect the status in clear ahead. Put it briefly,External research and application to diamond cutter grinding technology is all quite ripe.
In addition, another mark of external ripe application diamond cutter grinding technology is diamond cutter sharpeningCommercially producing of lathe. The PG3B type Natural Diamond Tools sharpening that Coborn company of Britain releases recentlyLathe, is mainly used in the processing and forming of knife face after cutter. The horizontal operating platform of PG3B machine adopted, it is mainAxle adopts aerostatic bearing attached water cooling system, and rotating speed can be up to 12000r/min, and diamond cutterCircular arc can realize on-line monitoring, its theoretical arc profile precision can reach in 150nm. In addition Britain,ContourFineTooling company and Dutch TechnoDiamant company make accurate diamond cutter by oneselfGrinding machine also can make the arc profile precision of diamond cutter reach 50nm.
The domestic research to diamond cutter grinding technology is started late, to the sword of arc-blade diamond cutterThe research of grinding machine reason, sharpening technique and detection technique is relatively superficial, to straight line blade diamond cutter swordAlthough the research of mill technology more a little earlier, can't stablize the technology that reaches high-precision diamond cutter and refer toMark. As at tool sharpening process aspect, 303 of the first research institutes of National Space Industry Corporation, Shanghai Instruments Factory,230 factories of China Academy of Launch Vehicle Technology, in unartificial Crystal study institute, the superhard material in east, the world, BeijingThe scientific research institutions such as material limited company and Shanghai Suporhard Tools Co., Ltd. or unit are to straight line sword goldThe sharpening technique of diamond cutter has been done more research work, but they can only be by straight line blade diamond cutterRounded cutting edge radius sharpening to about 100nm, can't sword for high-precision arc-blade diamond cutterMill. Non-military colleges and universities are as Harbin Institute of Technology, Chinese University of Science and Technology and Changchun University of Science and Technology (former Changchun opticsPrecision optical machinery institute) etc. unit also done at diamond cutter grinding technology and diamond crystal theoretical sideMore work, and be subject to the support of state research project.
But, because diamond crystal has very strong anisotropy, on different crystal faces and even same crystalline substanceMechanical performance difference on face different directions is obvious, makes, in diamond cutter sharpening process, to occur cutterTool material removing rate presenting direction. Not to the abrasion condition on the different circumference of abrasive disk respectively meanwhile, yetIdentical, ensure grinding quality and working (machining) efficiency, just must regularly repair abrasive disk, veryTrouble. In addition, relevant report shows, the tool sharpening technique of carrying out complicated sharpening track has to improve and addsThe advantages such as working medium amount, lifting working (machining) efficiency. So exploitation is at present manufactured one can provide as far as possible complicatedSharpening track and track, the good diamond cutter plane lapping burnishing machine of controllability be very urgent andFar reaching. But at present external high-end cutter grinding machine is embargoed us, and domesticly also establish without relevant mouldingStandby further investigation case. In addition there is many asking in the diamond cutter sharpening equipment of current domestic development,Topic, as single in running orbit, manipulation is complicated, easily aging, processing stability is not ideal enough etc. for equipment, because ofThis can not meet corresponding research and production demand.
Summary of the invention
The object of this invention is to provide a kind of complicated track polishing for Natural Diamond Tools sharpening establishesStandby, to solve, current diamond cutter sharpening equipment running orbit is single, manipulation is complicated, equipment easily aging,The dissatisfactory problem of processing stability.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: equipment comprises lathe bed, air supporting masterAxle axle system, precise guide rail pair, thrust air-bearing and mechanism controls parts, described air-floating main shaft axle is bagDraw together main shaft mounting plate, main shaft bottom plate, the first positioning and locking screw and main shaft, described mechanism controls partsComprise driving shaft, aligning leading screw, locking support, connecting rod and eccentric wheel;
Thrust air-bearing is installed on described lathe bed, and thrust air-bearing inside is provided with air-floating main shaft axleSystem, main shaft mounting plate is installed on main shaft top, and main shaft mounting plate is secondary and thrust air-bearing by precise guide railBe installed together, described thrust air-bearing is provided with the second positioning and locking screw;
Eccentric wheel is rotatably connected with connecting rod, and locking support is packed in eccentric bottom, and aligning leading screw is installedOn locking support, driving shaft is connected with aligning threads of lead screw, and driving shaft utilizes gathering sill and eccentric wheel to connectTouch, the first positioning and locking screw links together main shaft bottom plate, eccentric wheel and connecting rod, and connecting rod passes throughThe locking that the first positioning and locking screw is realized its main shaft bottom plate of installing with main shaft bottom with separate.
The present invention has following beneficial effect: the sharpening that the present invention can meet all kinds of superhard cutters addsWork technological requirement; Be particularly suitable for the high accuracy sharpening processing of natural uni-crystal diamond cutter; Because its toolHave the machining feature that grinding track is controlled, grinding state is complicated and changeable, can according to cutter material respectively toOpposite sex feature, carries out the processing of track hydridization sharpening, improves overall grinding quality; By regulating different addingWork pattern, the function that realizes coupling mechanism separates, and is realized the orientation of abrasive disk by eccentric mechanism controlMove back and forth, realized sine and the circumference superimposed motion of abrasive disk by turning-block linkage control, more auxiliary itThe variable motion of abrasive disk self, and then reach the coupling processing of Various Complex sharpening state and respectively processingThe movement locus amplitude of pattern is adjustable, and polishing speed is controlled, and mechanism's stationarity is good, and this just makes this establishThe standby complicated track sharpening Research on processing technology of carrying out Natural Diamond Tools that is extremely beneficial to; And this kind of cutterSharpening technique has the crudy of improvement, promotes working (machining) efficiency, cuts down finished cost and reduce abrasive disk officeThe advantages such as portion's wearing and tearing, not only can polishing go out high-precision sharp diamond cutter, and new to opening upThe research of the wear extent homogenizing control of tool sharpening technique, abrasive disk and optimization tool sharpening track etc. is askedInscribe all very useful. In addition, the present invention also have simple in structure, manipulation is convenient, the stability of a system and warpThe advantages such as Ji practicality is good.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the present invention's entirety assembling front view.
Fig. 3 is that the axles such as mechanism controls parts of the present invention are surveyed view.
Fig. 4 is mechanism controls parts upward view of the present invention.
In figure: 1, lathe bed; 1-1, location and installation plate; 2, air-floating main shaft axle system; 2-1, main shaft pop-upPlate; 2-2, main shaft bottom plate; 2-3, the first positioning and locking screw; 2-4, polishing dish; 2-5, main shaft;3, precise guide rail pair; 4, thrust air-bearing; 4-1, the second positioning and locking screw; 5, mechanism controlsParts; 5-1, driving shaft; 5-2, aligning leading screw; 5-3, locking support; 5-4, connecting rod; 5-5, inclined to one sideHeart wheel.
Detailed description of the invention
Detailed description of the invention one: in conjunction with Fig. 1-Fig. 4, present embodiment is described, the equipment bag of present embodimentDraw together lathe bed 1, air-floating main shaft axle and be 2, precise guide rail pair 3, thrust air-bearing 4 and mechanism controls parts5, described air-floating main shaft axle is 2 to comprise main shaft mounting plate 2-1, main shaft bottom plate 2-2, the first positioning lockTight screw 2-3 and main shaft 2-5, described mechanism controls parts 5 comprise driving shaft 5-1, aligning leading screw 5-2,Locking support 5-3, connecting rod 5-4 and eccentric wheel 5-5;
On described lathe bed 1, thrust air-bearing 4 is installed, thrust air-bearing 4 inside are provided with air supportingPrinciple axis shafting 2, main shaft mounting plate 2-1 is installed on main shaft 2-5 top, and main shaft mounting plate 2-1 leads by precisionRail secondary 3 is installed together with thrust air-bearing 4, and described thrust air-bearing 4 is provided with the second locationLock-screw 4-1;
Eccentric wheel 5-5 is rotatably connected with connecting rod 5-4, and locking support 5-3 is packed in the end of eccentric wheel 5-5Portion, it is upper that aligning leading screw 5-2 is arranged on locking support 5-3, driving shaft 5-1 and aligning leading screw 5-2 screw threadConnect, driving shaft 5-1 utilizes gathering sill to contact with eccentric wheel 5-5, the first positioning and locking screw 2-3Main shaft bottom plate 2-2, eccentric wheel 5-5 and connecting rod 5-4 are linked together, and connecting rod 5-4 is by firstThe locking that positioning and locking screw 2-3 realizes the main shaft bottom plate 2-2 installing itself and main shaft 2-5 bottom with pointFrom.
Detailed description of the invention two: in conjunction with Fig. 1, present embodiment is described, the equipment of present embodiment also comprisesPolishing dish 2-4, polishing dish 2-4 is installed on the top of described main shaft 2-5. Other embodiment is implemented with concreteMode one is identical.
Operation principle: when the first positioning and locking screw 2-3 by eccentric wheel 5-5 and connecting rod 5-4 is fixed as one andWhen the second positioning and locking screw 4-1 unclamps, due to driving shaft 5-1 and the thrust gas that precise guide rail pair 3 is installedFloating axle holds 4 and has certain offset, by rectilinear motion and the thrust air-bearing 4 of precise guide rail pair 3The coupling of circular motion, thereby form turning-block linkage, realize air-floating main shaft axle and be 2 in thrust air supportingThe compound motion form of the sine of bearing 4 inner spaces and circumference stack, and can pass through rotary aligning silkThick stick 5-2 and then the offset changing between driving shaft 5-1 and thrust air-bearing 4 regulate vibration widthThe control of degree and reciprocating path form. When the first positioning and locking screw 2-3 is by eccentric wheel 5-5 and connecting rod 5-4While unclamping, and select arbitrarily after the locked orientation of the second positioning and locking screw 4-1, by precise guide rail pair 3Rectilinear motion and connecting rod 5-4 and eccentric wheel 5-5 between the coupling rotatablely moving, thereby form eccentric wheelMechanism, reaches air-floating main shaft axle and is 2 and carry out the shape of straight reciprocating motion in thrust air-bearing 4 inner spacesFormula, and can and then change inclined to one side between driving shaft 5-1 and eccentric wheel 5-5 by rotary aligning leading screw 5-2Heart amount regulates the reciprocating amplitude of oscillation and movement velocity. Final realization, described mechanism controls parts 5 pass throughChange the state of the first positioning and locking screw 2-3 and the second positioning and locking screw 4-1, with precise guide rail pair 3Realize air-floating main shaft axle and be 2 complicated track control and regulatory function together with thrust air-bearing 4.
Claims (2)
1. for the complicated track polishing equipment of Natural Diamond Tools sharpening, described in it is characterized in thatEquipment comprises lathe bed (1), air-floating main shaft axle system (2), precise guide rail pair (3), thrust air-bearing (4)With mechanism controls parts (5), described air-floating main shaft axle system (2) comprises main shaft mounting plate (2-1), main shaftBottom plate (2-2), the first positioning and locking screw (2-3) and main shaft (2-5), described mechanism controls parts(5) comprise driving shaft (5-1), aligning leading screw (5-2), locking support (5-3), connecting rod (5-4) andEccentric wheel (5-5);
Thrust air-bearing (4) is installed on described lathe bed (1), and thrust air-bearing (4) is inner to be installedHave air-floating main shaft axle system (2), main shaft mounting plate (2-1), main shaft mounting plate are installed in main shaft (2-5) top(2-1) be installed together described thrust gas by precise guide rail pair (3) and thrust air-bearing (4)Floating axle holds (4) the second positioning and locking screw (4-1) is installed;
Eccentric wheel (5-5) is rotatably connected with connecting rod (5-4), and locking support (5-3) is packed in eccentric wheel(5-5) bottom, it is upper that aligning leading screw (5-2) is arranged on locking support (5-3), driving shaft (5-1)Be threaded with aligning leading screw (5-2), driving shaft (5-1) contacts with eccentric wheel (5-5), and first is fixedPosition locking screw (2-3) is connected main shaft bottom plate (2-2), eccentric wheel (5-5) and connecting rod (5-4)Together, connecting rod (5-4) is realized itself and main shaft (2-5) end by the first positioning and locking screw (2-3)Portion install main shaft bottom plate (2-2) locking with separate.
2. a kind of complicated track polishing for Natural Diamond Tools sharpening according to claim 1Equipment, is characterized in that described equipment also comprises polishing dish (2-4), the top peace of described main shaft (2-5)Dress polishing dish (2-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410342210.9A CN104084853B (en) | 2014-07-18 | 2014-07-18 | A kind of complicated track polishing equipment for Natural Diamond Tools sharpening |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410342210.9A CN104084853B (en) | 2014-07-18 | 2014-07-18 | A kind of complicated track polishing equipment for Natural Diamond Tools sharpening |
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| CN104084853A CN104084853A (en) | 2014-10-08 |
| CN104084853B true CN104084853B (en) | 2016-05-04 |
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| CN201410342210.9A Active CN104084853B (en) | 2014-07-18 | 2014-07-18 | A kind of complicated track polishing equipment for Natural Diamond Tools sharpening |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196116B (en) * | 2015-08-18 | 2017-06-16 | 哈尔滨工业大学 | A kind of mechanical grinding method of high-precision diamond glass formula pressure head |
| CN109093455B (en) * | 2017-02-27 | 2020-06-09 | 南通大学 | Micro-pendulum grinding and polishing device for efficiently processing high-precision arc-edge diamond cutter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2037661U (en) * | 1988-09-03 | 1989-05-17 | 哈尔滨工业大学 | High-precision diamond cutting tool grinder with static liquid pressure |
| JPH02145251A (en) * | 1988-11-25 | 1990-06-04 | Toshiba Corp | Finishing device for rotating curved face |
| CN2588115Y (en) * | 2001-03-27 | 2003-11-26 | 中国科学院长春光学精密机械与物理研究所 | Sliding bearing for diamond cutter abrasive machine |
| CN2590721Y (en) * | 2002-12-31 | 2003-12-10 | 北京智峰秋科技有限公司 | Diamond tool grinding machine |
| CN100491067C (en) * | 2005-09-29 | 2009-05-27 | 哈尔滨工业大学 | High-precision mechanical sharpening method for diamond cutter |
| CN101659020B (en) * | 2009-09-14 | 2011-06-22 | 哈尔滨工业大学 | Thermal-mechanical coupling edge grinding technology applicable to manufacturing diamond tools |
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