EP0876877A2 - Schleifkörper - Google Patents
Schleifkörper Download PDFInfo
- Publication number
- EP0876877A2 EP0876877A2 EP98108330A EP98108330A EP0876877A2 EP 0876877 A2 EP0876877 A2 EP 0876877A2 EP 98108330 A EP98108330 A EP 98108330A EP 98108330 A EP98108330 A EP 98108330A EP 0876877 A2 EP0876877 A2 EP 0876877A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- body according
- grooves
- abrasive body
- annular gap
- 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.)
- Withdrawn
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
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
-
- 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
- B24D7/10—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 with cooling provisions
Definitions
- the invention relates to a grinding wheel for the Surface treatment of metal workpieces and the like, channels for the The supply of a coolant opens.
- Such grinding tools are used, for example, for the Grinding blade-shaped parts, such as knives and scissors, as well surgical instruments and tools used.
- a rational grinding of such parts requires a sufficient amount large material removal, which is due to the highest possible Cutting ability of the grinding tool is achievable.
- the large material removal and the work to be done Cutting work can lead to overheating, which can in tarnishing colors or structural changes in the workpiece to make noticable.
- a measure to reduce the unwanted burning tendency is the introduction of a coolant to the grinding point by means of holes integrated in the grinding wheel, as proposed in DE 296 04 423 U1.
- abrasive grain and binder will be used when the setting is tough Mixing complicates and fails when large-scale grinding agglomerates are used.
- the supply of the channels with flowing cooling water is problematic or too expensive and is not solved at all in blind holes.
- From DE-B-0 226 842 is a grinding wheel made of emery, corundum, Carborundum or the like with spaces on the grinding surface known, the grinding wheel made of individual thinner Slices is composed, in which cutouts located that are offset from each other so that they are oblique running, zigzag or similar cutouts form. This should always protrude during the grinding process Attack edges remain. Through the interrupted cut such a grinding wheel should be compared to a full wheel achieve a higher grinding effect.
- the one with certain Arrangement of the individual discs formed channels are blind holes, which are not suitable for cooling liquid promote.
- From DE-A-2 851 737 is a coolable with a cooling medium Grinding wheel with one arranged in the edge of the wheel circumferential slot known through which from the inside under the Effect of the centrifugal force the cooling medium is introduced.
- the grinding wheel should be improved in that Structure and manufacturing options significantly simplified are.
- the surface faces the horizontal arranged grinding wheel on a circumferential recess, which have holes with the circumferential slot in the edge of the Grinding wheel is connected.
- the cooling channels run essentially only in the support bodies of the grinding zones, and not in this itself.
- the object of the invention is a grinding wheel of the beginning to propose the type mentioned, which is easy to manufacture enables effective cooling of the grinding zones.
- This task is the beginning of a grinding wheel mentioned type solved, for example, that the grinding surfaces of at least two separately made and after joined grinding zones with at least one of the Grooves provided for joining surfaces of the grinding zones are.
- Such grooves are relatively easy to manufacture and they form when joining the two grinding zones inevitably closed, over the entire length of the Continuous channels through grinding zones, which extend into the front Grinding surfaces are sufficient and their dimensioning, Geometry and number according to the process requirements Amount of cooling water can be determined. Because of the invention the coolant flow remains unchanged, even if that Tool gradually worn down to a small remnant is.
- the grooves can each form a channel for themselves. It is but also possible that the grooves of one joint surface together with opposite grooves of the adjacent other joint surfaces each form channels together.
- the channels are preferably to simplify production and improve the function with a common supply channel connected for the coolant.
- a relatively large removal of material creates a relatively rough one Material surface, which is often contrary to one low functional or aesthetic reasons Roughing depth stands.
- Roughing depth stands.
- the grinding zones can also, as from DE 29 31 695 B2 known per se, from concentric to a common axis rotatable rings with end-face grinding surfaces formed be.
- the grooves are over the inner circumferential surface of the outer one Ring and / or the outer peripheral surface of the inner ring distributed.
- the supply channel for the coolant is in the case of Formation of the grinding zones as rings, preferably from one formed by the rings released annular gap, from which the individual channels go out and into the grinding surface run. In this way, the coolant is rotated of the annular grinding wheel down to the grinding surfaces guided.
- the annular gap can be easily manufactured in terms of manufacturing technology Shortening an inner ring compared to an outer ring be educated. In this way, the annular gap has one greatest possible distance from the grinding surfaces, so that the Channels for the coolant along the entire length of the wall of the annular grinding wheel.
- the annular gap is preferably between the clamping end of the inner Ring and the clamping flange, while the outer ring on the the end opposite the grinding surface is sealed abuts the mounting flange.
- the annular gap to the interior of the inner ring open for the supply of coolant, so that this on simple way, for example by means of a tube or Hose injected into the interior of the inner ring can be.
- the cooling liquid due to the rotation in and out of the annular gap the axially parallel channels driven so that the coolant reliable down to the grinding gap between the grinding surface and workpiece is conveyed.
- This effect can be further improved in that Area of the annular gap on the inner peripheral surface of the outer Ring, possibly in continuation of the inside circumferential surface of the outer ring in the joining area already provided grooves, in essential axially parallel grooves are provided.
- the grinding wheel can be manufactured, for example, using cylindrical, cuboid or otherwise shaped large-scale grinding agglomerates with a cross section of up to 80 mm 2 and a length of up to 15 mm.
- the grinding wheels for the surface treatment of workpieces 1 to 4 and 6 each consist of two grinding rings 1 and 2 designed as rings 16 with end faces if necessary, slightly beveled inwards, one inside the other merging grinding surfaces 7, 7 '.
- the grinding zones 1, 2 are due to different abrasive grains and / or abrasive agglomerates with different grinding characteristics as well different bond matrix, hardness and porosity produced and then together at their joining surfaces 11, 12 glued.
- the rings 16, with or without molded grooves 15 can be cast, for example, where, as shown, the grooves 15 for reasons of rational mold production and demolding preferably the inner joining surface 12 of the outer grinding zone ring 2, 16 are located.
- the grooves 15 can instead or additionally in the outer joining surface 11 of the inner grinding zone ring 1, 16 are located according to FIG. 3 offset to the grooves 15 of the outer grinding zone ring 2, 16, so that the individual Grooves 15 each form channels 4 for the coolant, or as shown in FIG. 4 so that the outer and inner grooves 15th each form a channel 4 together.
- the axially parallel channels 4 begin in a Annular gap 18 formed supply channel 6 for the Coolant.
- the annular gap 18 is formed in that the inner grinding zone ring 1, 16 at a distance from the mounting surface 19 of the mounting flange 5 ends while the outer Grinding zone ring 2, 16 sealing on the mounting surface 19 abuts and via an outer peripheral flange 20 in one corresponding circumferential groove 21 of the mounting flange 5 is held is. Because of this, the annular gap 18 to the interior 17 of the innermost grinding zone ring 2, 16 open. For example 6, a liquid coolant jet via a tube 22 8 are directed into the interior 17.
- Cooling liquid promoted the better in the grinding gap 9 the faster the ring-shaped grinding wheel turns around its Axis A rotates; i.e. the coolant supply increases with increasing Grinding performance and thus increasing risk of overheating improved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
- Fig. 1
- im Längsschnitt einen die Erfindung aufweisenden, aus zwei zylindrischen Komponenten gebildeten ringförmigen Schleifkörper, montiert an einem rotierbaren Aufnahmeflansch einer Schleifmaschine,
- Fig. 2
- den Schleifkörper nach Fig. 1 im Querschnitt,
- Fig. 3 und 4
- im Querschnitt Schleifkörper entsprechend Fig. 1 jedoch mit gegenüber Fig. 2 geänderter Rillenanordnung,
- Fig. 5
- im Querschnitt einen ringförmigen Schleifkörper gemäß einer noch weiteren Ausgestaltung, bei welcher drei Ringkomponenten zur Bildung eines ringfömrigen Schleifkörpers mit einer Ausgestaltung der Rillen zur Bildung von Kühlmittelkanälen entsprechend Fig. 2, und
- Fig. 6
- einen Teillängsschnitt des ringförmigen Schleifkörpers gemäß Fig. 1 mit Veranschaulichung der Kühlmittel-Zufuhr und der Kühlmittel-Förderung in dem Schleifkörper bis zur Schleiffläche.
- 1
- Schleifzone
- 2
- Schleifzone
- 3
- Schleifzone
- 4
- Kanäle
- 5
- Aufspannflansch
- 6
- Versorgungskanal
- 7, 7'
- Schleifflächen
- 8
- Kühlmittelstrahl
- 9
- Schleifspalt
- 10
- Werkstück
- 11
- Fügefläche
- 12
- Fügefläche
- 13
- Fügefläche
- 14
- Fügefläche
- 15, 15'
- Rillen
- 16
- Ringe
- 17
- Innenraum
- 18
- Ringspalt
- 19
- Montagefläche
- 20
- Umfangsflansch
- 21
- Umfangsnut
- 22
- Rohr
Claims (14)
- Schleifkörper für die Oberflächenbehandlung von metallenen Werkstücken und dergleichen, in dessen stirnseitige Schleifflächen (7, 7') Kanäle (4) für die Zuführung eines Kühlmittels (8) münden, dadurch gekennzeichnet, daß die Schleifflächen (7, 7') von wenigstens zwei gesondert gefertigten und danach zusammengefügten Schleifzonen (1 bis 3) mit an wenigstens einer der Fügeflächen (11 bis 14) der Schleifzonen (1 bis 3) vorgesehenen Rillen (15) gebildet sind.
- Schleifkörper nach Anspruch 1, dadurch gekennzeichnet, daß die Rillen (15) je für sich einen Kanal (4) bilden.
- Schleifkörper nach Asnpruch 1 oder 2, dadurch gekennzeichnet, daß die Rillen (15) der einen Fügefläche (11 bis 14) gemeinsam mit gegenüberliegenden Rillen (15) der angrenzenden anderen Fügefläche (11 bis 14) Kanäle (4) bilden.
- Schleifkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Kanäle (4) mit einem gemeinsamen Versorgungskanal (6) für das Kühlmittel (8) verbunden sind.
- Schleifkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schleifzonen (1 bis 3) unterschiedliche Schleifcharakterristik aufweisen.
- Schleifkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schleifzonen (1 bis 3) von konzentrischen, um eine gemeinsame Achse (A) rotierbaren Ringen (16) mit stirnseitigen Schleifflächen (7, 7') gebildet sind.
- Schleifkörper nach Anspruch 6, dadurch gekennzeichnet, daß die Rillen (15) achsparallel verlaufen.
- Schleifkörper nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Rillen (15) über die Innenumfangsfläche eines äußeren Ringes (16) und/oder die Außenumfangsflächen eines inneren Ringes (16) verteilt angeordnet sind.
- Schleifkörper nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß der Versorgungskanal (6) von einem von den Ringen (16) freigelassenen Ringspalt (18) gebildet ist.
- Schleifkörper nach Anspruch 9, dadurch gekennzeichnet, daß der Ringspalt (18) durch Verkürzung eines inneren Ringes (16) gegenüber einem äußere Ring (16) gebildet ist.
- Schleifkörper nach Anspruch 10, wobei die Ringe (16) auf dem den Schleifflächen (7, 7') gegenüberliegenden Ende an einem Aufspannflansch (5) aufgespannt sind, dadurch gekennzeichnet, daß der Ringspalt (18) zwischen dem aufspannseitigen Ende des inneren Ringes (16) und dem Aufspannflansch (5) gebildet ist.
- Schleifkörper nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, daß der Ringspalt (18) zum Innenraum (17) des inneren Ringes (16) hin für die Zuführung von Kühlmittel (8) offen ist.
- Schleifkörper nach Anspruch 12, dadurch gekennzeichnet, daß im Bereich des Ringspaltes (18) auf der Innenumfangsfläche des äußeren Ringes (2, 16) im wesentlichen achsparallele Rillen (15') vorgesehen sind.
- Schleifkörper nach einem der vorhergehenden Ansprüche, gekennzeichnet durch Schleifagglomerate mit einem Querschnitt von bis zu 80 mm2 und einer Länge von bis zu 15 mm.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29708235U DE29708235U1 (de) | 1997-05-07 | 1997-05-07 | Schleifkörper |
DE29708235U | 1997-05-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0876877A2 true EP0876877A2 (de) | 1998-11-11 |
EP0876877A3 EP0876877A3 (de) | 2001-08-29 |
Family
ID=8040088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98108330A Withdrawn EP0876877A3 (de) | 1997-05-07 | 1998-05-07 | Schleifkörper |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0876877A3 (de) |
DE (1) | DE29708235U1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10141330C1 (de) * | 2001-08-28 | 2003-03-13 | Bruno Schmitz Schleifmittelwer | Schleifkörper |
US6966826B2 (en) | 2001-07-04 | 2005-11-22 | Disco Corporation | Grinding wheel |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE863608C (de) * | 1951-01-31 | 1953-01-19 | Erwin Krusius | Verfahren zur schleifenden Bearbeitung, insbesondere von Messerschmiedewaren |
GB935030A (en) * | 1959-01-26 | 1963-08-28 | Super Cut | Abrasive diamond core drill |
GB1085242A (en) * | 1964-06-30 | 1967-09-27 | Engelhard Hanovia Inc | Surfacing of materials |
DE2802081A1 (de) * | 1977-01-18 | 1978-07-20 | Daichiku Co Ltd | Laminiertes, rotierendes schleifwerkzeug und verfahren zu seiner herstellung |
FR2704473A3 (fr) * | 1993-04-26 | 1994-11-04 | Camfart Srl | Meule abrasive à trous d'aération. |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE226842C (de) * | ||||
DE2851737A1 (de) * | 1978-11-30 | 1980-07-10 | Ver Glaswerke Gmbh | Gekuehlte schleifscheibe |
-
1997
- 1997-05-07 DE DE29708235U patent/DE29708235U1/de not_active Expired - Lifetime
-
1998
- 1998-05-07 EP EP98108330A patent/EP0876877A3/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE863608C (de) * | 1951-01-31 | 1953-01-19 | Erwin Krusius | Verfahren zur schleifenden Bearbeitung, insbesondere von Messerschmiedewaren |
GB935030A (en) * | 1959-01-26 | 1963-08-28 | Super Cut | Abrasive diamond core drill |
GB1085242A (en) * | 1964-06-30 | 1967-09-27 | Engelhard Hanovia Inc | Surfacing of materials |
DE2802081A1 (de) * | 1977-01-18 | 1978-07-20 | Daichiku Co Ltd | Laminiertes, rotierendes schleifwerkzeug und verfahren zu seiner herstellung |
FR2704473A3 (fr) * | 1993-04-26 | 1994-11-04 | Camfart Srl | Meule abrasive à trous d'aération. |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6966826B2 (en) | 2001-07-04 | 2005-11-22 | Disco Corporation | Grinding wheel |
SG119140A1 (en) * | 2001-07-04 | 2006-02-28 | Disco Corp | Grinding wheel |
DE10141330C1 (de) * | 2001-08-28 | 2003-03-13 | Bruno Schmitz Schleifmittelwer | Schleifkörper |
Also Published As
Publication number | Publication date |
---|---|
DE29708235U1 (de) | 1997-09-11 |
EP0876877A3 (de) | 2001-08-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102007049057B4 (de) | Einstückig ausgebildeter Messerkopf und Verfahren zum Nachschleifen eines solchen Messerkopfes | |
CH651236A5 (de) | Vorrichtung zum einschneiden von saegezaehnen in laengs- oder bandsaegeblaetter. | |
EP1313594B1 (de) | Polierwerkzeug | |
EP2440371B1 (de) | Schleif- und/oder polierwerkzeug und herstellungsverfahren | |
DE29807488U1 (de) | Arbeitswalze, insbesondere Waschwalze für Fahrzeugwaschanlagen | |
DE102007038935A1 (de) | Stabmesserkopf und entsprechende Werkzeugmaschine | |
DE10112165B4 (de) | Stabmesserkopf zum Verzahnen | |
DE4431960C1 (de) | Messer für Fleischwölfe | |
DE3119533A1 (de) | "vorrichtung zum mechanischen bearbeiten ringfoermiger werkstuecke" | |
EP0876877A2 (de) | Schleifkörper | |
EP0487539A1 (de) | Schneidwalze oder stanzzylinder und verfahren zum herstellen von solchen. | |
DE602004006149T3 (de) | Schleifgerät, dessen Anwendung zum Schleifen von zylindrischen Gegenständen , Vorrichtung und Verfahren zum Schleifen von zylindrischen Gegenständen | |
DE10113301B4 (de) | Verfahren und Vorrichtung zum Hinterschleifen der Schneidzähne von zylindrisch oder kegelig geformten Abwalzfräsern sowie Abwalzfräser | |
DE3419632A1 (de) | Profilabrichtwerkzeug | |
DE19854113C2 (de) | Fräswerkzeug zur Bearbeitung von Stein oder steinähnlichen Materialien | |
DE2811376C3 (de) | Rotor für Prallmühlen, insbesondere für Sandprallmühlen | |
EP2311568A1 (de) | Schneidsatz mit Sicherheitsdistanzringmesser | |
DE19846765C2 (de) | Vorrichtung zum Schleifen und/oder Polieren | |
DE2539881A1 (de) | Zahnaerztliches drehwerkzeug, insbesondere fraeser | |
EP2388095A1 (de) | Fräswerkzeug | |
CH312328A (de) | Schleifvorrichtung. | |
DE1577584C3 (de) | Schleifscheibe mit metallisch gebundenem Diamantbelag | |
DE1577584B2 (de) | Schleifscheibe mit metallisch gebundenem diamantbelag | |
DE202006002850U1 (de) | Kreissägeblatt | |
EP1888285B1 (de) | Schleifwerkzeug |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LIPPERT-UNIPOL GMBH |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7B 24D 7/10 A, 7B 24B 3/36 B, 7B 24D 7/14 B |
|
AKX | Designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20020301 |