EP0451509B1 - Schleifkörper - Google Patents
Schleifkörper Download PDFInfo
- Publication number
- EP0451509B1 EP0451509B1 EP91103599A EP91103599A EP0451509B1 EP 0451509 B1 EP0451509 B1 EP 0451509B1 EP 91103599 A EP91103599 A EP 91103599A EP 91103599 A EP91103599 A EP 91103599A EP 0451509 B1 EP0451509 B1 EP 0451509B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- abrasive body
- grinding
- wings
- wing tip
- abrasive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded 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
- B24D7/18—Wheels of special form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S451/00—Abrading
- Y10S451/921—Pad for lens shaping tool
Definitions
- the invention relates to an abrasive wheel according to the preamble of claim 1.
- dome or hemispherical supports are usually used, on which numerous sintered grinding bodies, e.g. B. so-called diamond pellets.
- these diamond pellets must be dressed, i.e. H. be ground to the exact concave shape, which is a very labor-intensive process.
- DE-A-3 535 659 describes a flexible, deformable sintered grinding wheel which is suitable for grinding wheel carriers with a concave or convex curved surface or for wrapping around grinding rolls. This grinding wheel itself is not curved.
- the invention has for its object to provide an abrasive body which can be applied to the carrier in a simple manner, which does not require expensive dressing, and which ensures an excellent grinding effect.
- the invention is based on the knowledge that this object can be achieved by a grinding body made of plastically deformable alloy with a particulate abrasive grain if the grinding body is given a suitable shape.
- the invention relates to an abrasive body as defined in claim 1.
- the curved shape of the wings Due to the curved shape of the wings, a better grinding effect is achieved, while also protecting the Edges of the workpiece and a better coolant flow is guaranteed.
- the curved wing shape leads to a better grinding pattern and better coolant ejection. This enables grinding under high pressure and high coolant consumption.
- the grinding process is significantly improved by the better cooling. Due to the concave shaped grinding surface, the grinding wheel can be easily applied to appropriately shaped supports, for example ball end mills.
- a plastically deformable alloy is selected as the material for the grinding wheel. This allows the grinding wheel to be easily adapted to any shape of a carrier under pressure.
- the grinding body is formed in one piece. This facilitates the use of the grinding wheel.
- the flails preferably have cooling water channels running from a central opening to the wing tip. This also improves cooling.
- the cooling water channels preferably end in front of the wing tip in order to give the grinding body a closed and as stable a shape as possible.
- the coolant is supplied in the usual way through a central bore in the carrier, which is aligned with the central bore in the grinding body, and thus distributed uniformly in the coolant channels.
- the slider body In such a way that the wings become wider towards the wing tip.
- the wings In order to protect the workpiece, it is particularly advantageous to give the wings an essentially rounded shape, which is particularly true of those portions of the wing that first strike the workpiece.
- the single figure shows a grinding wheel according to the invention.
- the grinding wheel 1 has vanes 2. Cooling water channels 5 extend from a central opening 3 in the direction of the wing tips 8. The wings are curved in the running direction, in the illustrated case clockwise. Both the cooling water channels 5 arranged in the wings 2 and the wing interspaces 4 widen outwards. The front wing end 6 is round, while the rear wing end 7 can be round or, as shown, somewhat angular. The grinding wheel can be used for both left and right rotation if the blades are bent in one direction or the other.
- the alloy described in German Patent 35 35 695 is preferably used as the plastically deformable alloy. Reference is made in full to the disclosure of this patent specification.
- the bronze alloy used according to the invention for the grinding wheel has a content, based on the alloy, of 70-98% by weight of Cu 3 - 30 wt% Ag 0-1% by weight of Si and 0.05-3% by weight of Sn, Pb. Zn and / or Cd.
- Diamond is primarily used as the abrasive grain.
- the grain size can be selected within wide limits depending on the intended use, for example a D25 grain can be used.
- the concentration of the abrasive grain in the alloy can also be very different, with suitable concentrations between C5 and C100.
- the dimensions of the grinding wheel primarily depend on the dimensions of the workpiece.
- the dimensions lie approximately in the following ranges: diameter of the grinding wheel 8 to 20 cm, diameter of the central opening 1 to 3 cm and number of wings 6 to 15.
- the thickness of the grinding wheel is generally between 0.5 and 5 mm, preferably 2 to 3 mm.
- the grinding wheels according to the invention are, for. B. used in metal spherical end mills. Compared to other materials, plastic, deformable materials have the advantage that the abrasive body formed from them adapts exactly to the shape of the spherical cap under pressure.
- the grinding wheels are preferably glued into the calotte, for example with an epoxy resin adhesive.
- a reversible attachment is also possible, for example with a hot melt adhesive, so that the grinding wheel can be loosened again in the heat and can be used on another carrier with a different radius under certain circumstances.
- Pellets Before the grinding process, only a slight post-treatment of the grinding wheel is necessary, in contrast to the complex post-treatment that is required when using pellets. Pellets have to be brought into the concave shape by grinding, for example with silicon carbide.
- the grinding wheels are particularly suitable for grinding glass, but also ceramic materials and metals.
- the grinding wheel according to the invention is characterized by improved cooling and improved grinding action. Due to its shape, it is easily adaptable to any carrier shape.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT91103599T ATE94110T1 (de) | 1990-04-12 | 1991-03-08 | Schleifkoerper. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4011960 | 1990-04-12 | ||
DE4011960A DE4011960A1 (de) | 1990-04-12 | 1990-04-12 | Schleifkoerper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0451509A1 EP0451509A1 (de) | 1991-10-16 |
EP0451509B1 true EP0451509B1 (de) | 1993-09-08 |
Family
ID=6404348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91103599A Expired - Lifetime EP0451509B1 (de) | 1990-04-12 | 1991-03-08 | Schleifkörper |
Country Status (8)
Country | Link |
---|---|
US (1) | US5287662A (no) |
EP (1) | EP0451509B1 (no) |
JP (1) | JP2831148B2 (no) |
AT (1) | ATE94110T1 (no) |
DE (2) | DE4011960A1 (no) |
ES (1) | ES2044633T3 (no) |
FI (1) | FI94732C (no) |
NO (1) | NO910799L (no) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08511733A (ja) * | 1993-06-17 | 1996-12-10 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | パターン化された研磨用製品並びに製法及び使用法 |
AU713509B2 (en) * | 1995-12-07 | 1999-12-02 | Bausch & Lomb Incorporated | Monomeric units useful for reducing the modulus of silicone hydrogels |
US6007415A (en) * | 1995-12-08 | 1999-12-28 | Norton Company | Sanding disks |
US6736712B1 (en) * | 1999-05-07 | 2004-05-18 | Performance Abrasives Incorporated | Rotary sanding disk |
US6846223B2 (en) * | 2000-12-09 | 2005-01-25 | Saint-Gobain Abrasives Technology Company | Abrasive wheels with workpiece vision feature |
US20030143926A1 (en) * | 2002-01-30 | 2003-07-31 | Raffi Piliguian | Grinding or polishing arrangement |
JP3843933B2 (ja) * | 2002-02-07 | 2006-11-08 | ソニー株式会社 | 研磨パッド、研磨装置および研磨方法 |
DE102005010583A1 (de) * | 2005-03-04 | 2006-09-07 | Satisloh Gmbh | Polierteller für ein Werkzeug zur Feinbearbeitung von optisch wirksamen Flächen an insbesondere Brillengläsern |
DE102010019491B4 (de) * | 2010-04-30 | 2015-07-09 | Carl Zeiss Vision International Gmbh | Polierwerkzeug zur Bearbeitung von optischen Flächen, insbesondere Freiformflächen |
DE102010029792A1 (de) * | 2010-06-08 | 2011-12-08 | Robert Bosch Gmbh | Schleifwerkzeug für ein Schleifgerät mit Drehoszillationsantrieb |
DE112015002769T5 (de) * | 2014-06-10 | 2017-03-23 | Olympus Corporation | Polierwerkzeug, Polierverfahren und Poliervorrichtung |
DE102017216033A1 (de) * | 2017-09-12 | 2019-03-14 | Carl Zeiss Smt Gmbh | Verfahren zum Bearbeiten eines Werkstücks bei der Herstellung eines optischen Elements |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2282650A (en) * | 1941-05-01 | 1942-05-12 | American Sandpaper Company | Abrasive article |
DE884005C (de) * | 1951-12-28 | 1953-07-23 | Stella Schleifscheibenwerke Ro | Schleifwerkzeug mit gekuehlter Arbeitsflaeche |
US2749681A (en) * | 1952-12-31 | 1956-06-12 | Stephen U Sohne A | Grinding disc |
US2828197A (en) * | 1954-09-15 | 1958-03-25 | Norton Co | Metal bonded diamond wheels |
DE1742705U (de) * | 1956-08-16 | 1957-04-04 | Wilhelm Blumberg & Co | Ringfoermiger kunstschleifstein mit kuhlwasserberieselung. |
FR1318689A (fr) * | 1962-01-08 | 1963-02-22 | Tolly | Disque abrasif |
US3186135A (en) * | 1962-04-04 | 1965-06-01 | Carborundum Co | Abrasive disc |
US3385010A (en) * | 1966-03-25 | 1968-05-28 | Norton Co | Abrasive disc |
US3583111A (en) * | 1966-08-22 | 1971-06-08 | David Volk | Lens grinding apparatus |
US3780476A (en) * | 1972-08-08 | 1973-12-25 | Gen Motors Corp | Grinding wheel and mounting assembly |
US4291508A (en) * | 1979-11-30 | 1981-09-29 | American Optical Corporation | Lens surfacing pad |
DE3535659C1 (de) * | 1985-10-04 | 1987-04-02 | Swarovski & Co | Verwendung einer Bronzelegierung fuer Sinterschleifkoerper |
DD255903A1 (de) * | 1986-11-10 | 1988-04-20 | Textiltech Forsch | Flexibler schleifkoerper und verfahren zu dessen herstellung |
-
1990
- 1990-04-12 DE DE4011960A patent/DE4011960A1/de active Granted
-
1991
- 1991-02-27 NO NO91910799A patent/NO910799L/no unknown
- 1991-03-01 FI FI911039A patent/FI94732C/fi active
- 1991-03-08 ES ES91103599T patent/ES2044633T3/es not_active Expired - Lifetime
- 1991-03-08 DE DE91103599T patent/DE59100353D1/de not_active Expired - Fee Related
- 1991-03-08 EP EP91103599A patent/EP0451509B1/de not_active Expired - Lifetime
- 1991-03-08 AT AT91103599T patent/ATE94110T1/de not_active IP Right Cessation
- 1991-04-05 JP JP3073208A patent/JP2831148B2/ja not_active Expired - Lifetime
- 1991-04-08 US US07/682,266 patent/US5287662A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE4011960C2 (no) | 1993-02-25 |
NO910799L (no) | 1991-10-14 |
FI94732C (fi) | 1995-10-25 |
US5287662A (en) | 1994-02-22 |
JPH0796467A (ja) | 1995-04-11 |
JP2831148B2 (ja) | 1998-12-02 |
ATE94110T1 (de) | 1993-09-15 |
FI911039A (fi) | 1991-10-13 |
EP0451509A1 (de) | 1991-10-16 |
NO910799D0 (no) | 1991-02-27 |
ES2044633T3 (es) | 1994-01-01 |
FI94732B (fi) | 1995-07-14 |
DE59100353D1 (de) | 1993-10-14 |
DE4011960A1 (de) | 1991-10-17 |
FI911039A0 (fi) | 1991-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0451509B1 (de) | Schleifkörper | |
DE69034066T2 (de) | Schleifmittel und Verfahren zu dessen Herstellung | |
DE2536090A1 (de) | Schleifkoerper und verfahren zu seiner herstellung | |
DE1544643B2 (de) | Schleifkoerper, insbesondere fuer elektrolytisches schleifen | |
DE2910347C2 (de) | Drehbohrmeißel für Tiefbohrungen im Gestein | |
DE2306780A1 (de) | Verzahntes werkzeug zum feinbearbeiten von zahnraedern | |
EP3165284B1 (de) | Zerkleinerungszahnscheibe für einen körnerprozessor | |
EP0332886B1 (de) | Strahlmittel aus thermoplastischem Kunststoff | |
DE3019699A1 (de) | Befestigungseinrichtung zur anbringung eines zubehoerteils an einem schutzhelm | |
DE102019117799B4 (de) | Zerspanungswerkzeug mit asymmetrischen Zähnen mit Schneidpartikeln | |
DE1093692B (de) | Schneidwerkzeug, insbesondere zum Abrichten von Schleifscheiben | |
EP0857552B1 (de) | Steinbearbeitungswerkzeug mit verbessertem Anschnittverhalten | |
EP0321969B1 (de) | Abrichtrolle und Verfahren zu deren Herstellung | |
DE1301221B (de) | Abstreifvorrichtung von Fuehrungsflaechen an Werkzeugmaschinen | |
DE1544643C3 (de) | Schleifkörper, insbesondere für elektrolytisches Schleifen | |
DE1940597C3 (de) | Diamantschleifscheibe | |
DE1544632C3 (de) | Verfahren zur Herstellung eines Schaumstoffes | |
AT273761B (de) | Abziehvorrichtung für Ski-Stahlkanten | |
WO2009018994A1 (de) | Schärfer zum schärfen von klingen, insbesondere von rasierklingen | |
DE2243215A1 (de) | Abrichtwerkzeug fuer schleifscheiben, insbesondere diamant- und bornitridschleifscheiben | |
EP0282605B1 (de) | Abenteuermesser oder dergleichen mit Scheide | |
DE1151709B (de) | Als Schneidscheibe ausgebildeter Abstechstahl | |
DE1947295A1 (de) | Hartmetallbestueckte Kreissaege | |
DE2038608A1 (de) | Diamantschleifscheibe mit Schneideinsaetzen | |
AT276531B (de) | Vorrichtung zum Entfernen der Isolation, zum Verdrillen und zum Reinigen von Drähten |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19910308 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE ES FR GB IT LI SE |
|
17Q | First examination report despatched |
Effective date: 19920217 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE ES FR GB IT LI SE |
|
REF | Corresponds to: |
Ref document number: 94110 Country of ref document: AT Date of ref document: 19930915 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 59100353 Country of ref document: DE Date of ref document: 19931014 |
|
ITF | It: translation for a ep patent filed |
Owner name: JACOBACCI CASETTA & PERANI S.P.A. |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19930922 |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2044633 Country of ref document: ES Kind code of ref document: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
EAL | Se: european patent in force in sweden |
Ref document number: 91103599.6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20000224 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20000320 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20000324 Year of fee payment: 10 Ref country code: ES Payment date: 20000324 Year of fee payment: 10 Ref country code: BE Payment date: 20000324 Year of fee payment: 10 Ref country code: AT Payment date: 20000324 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20000327 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20000428 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010308 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010308 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010309 Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010309 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010331 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010331 |
|
BERE | Be: lapsed |
Owner name: D. SWAROVSKI & CO. Effective date: 20010331 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20010308 |
|
EUG | Se: european patent has lapsed |
Ref document number: 91103599.6 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011130 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020101 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20030203 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050308 |