EP0989924A1 - Schleifscheibe - Google Patents
SchleifscheibeInfo
- Publication number
- EP0989924A1 EP0989924A1 EP99916712A EP99916712A EP0989924A1 EP 0989924 A1 EP0989924 A1 EP 0989924A1 EP 99916712 A EP99916712 A EP 99916712A EP 99916712 A EP99916712 A EP 99916712A EP 0989924 A1 EP0989924 A1 EP 0989924A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding wheel
- recesses
- grinding
- shaped
- wheel according
- 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.)
- Granted
Links
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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
-
- 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 with a carrier wheel and a grinding layer arranged thereon on the circumferential side, the grinding layer having a large number of recesses distributed over the circumference.
- the invention further relates to a grinding device with a device for supplying a coolant and / or lubricant.
- Grinding disks are already known in which segments provided with abrasive grain on a carrier disk are attached, for example glued, distributed over the circumference. It is also already known to arrange these segments at a circumferential distance from one another and to feed liquid coolant and / or lubricant into the recesses formed between the segments.
- the object of the invention is to improve the known grinding wheels, in particular with regard to improved grinding properties and greater stability.
- the recesses are cup-shaped or bucket-shaped in a radial view of the circumference of the grinding wheel.
- the recesses While in the prior art the recesses run straight across the entire width of the grinding wheel in a radial view of the circumference of the grinding wheel transversely to the circumferential direction, the recesses according to the invention are cup-shaped or bucket-shaped, ie they are bounded on both sides at least over a certain range, so that the coolant and / or lubricant fed into the grinding area is held in the transverse direction and thus remains better in the grinding zone.
- this does not necessarily mean that the recesses must be closed towards the peripheral edge of the grinding wheel.
- the recesses can also extend to the lateral circumference of the grinding wheel, that is to say they are open to the side, but that cup-shaped or bucket-shaped shapes of the recess are nevertheless formed, preferably by recesses which are essentially V-shaped or U-shaped. Whether open or closed recesses on the side 2 can be used and we are wide the lateral openings of these recesses, can be selected from the type of coolant supply, the amount of coolant and / or lubricant or the supply pressure.
- Such essentially V-shaped or U-shaped recesses enable an additional effect, namely the guiding of coolant and / or lubricant from the peripheral edge of the grinding wheel towards the center (ie towards the arrowhead of the V or the apex of the U).
- Several V's and U's can also be lined up next to one another and, for example, can result in a serrated shape of the recesses. A hydrodynamic pressure build-up thus occurs.
- Such grinding wheels with V- or U-shaped recesses which are distributed over the circumference, are generally bound to the direction of rotation, i. H. the desired effect can only be achieved with one direction of rotation, namely the one in which the V or U is moved forward in an open manner.
- FIG. 1 shows a partially broken away perspective view of a first embodiment of a grinding wheel according to the invention
- 3 shows part of the circumferential development of a grinding wheel according to the invention, 3 shows a schematic side view of an embodiment of a grinding device according to the invention,
- FIG. 5 and FIG. 6 each show embodiments of a grinding wheel according to the invention in a section perpendicular to the axis
- FIGS. 7 and 8 each show further circumferential developments of exemplary embodiments of grinding wheels according to the invention.
- the fig. 9b shows a radial view of the circumference of this grinding wheel
- 11 a to 11 c show, in a highly schematic manner, further possibilities of the shapes of the recesses, each in a radial view of the circumference of the grinding wheel.
- a plurality of grinding segments 2 arranged with a circumferential spacing from one another are glued onto a carrier or a carrier disc 1 (for example made of steel, ceramic, damping carrier body, CF carrier body).
- the abrasive grain (abrasive) and the type of bond are arbitrary in themselves.
- corundum, CBN (cubic boron nitride) are suitable abrasives.
- ceramic, synthetic resin or metal can be used as bonds.
- the separate grinding segments are arrow-shaped, so that between them there are V-shaped recesses 3, which are shown in black in FIGS. 1 and 2. These V-shaped recesses are cup-shaped or bucket-shaped in a radial view of the circumference of the grinding wheel (approximately in the middle of FIG. 2). 4
- V-shaped segments for example a ceramic grinding material
- V-shaped recesses 3 which are open towards the lateral peripheral edge 1a of the disk.
- the recesses 3 are open to the side, there is nevertheless a cup-shaped or bucket-shaped area, which is shown in dotted lines in FIG. 3 and which has the circumferential length A and the circumferential width B. This area is closed on both sides, so that the coolant and / or lubricant cannot escape transversely to the direction of movement 4 or circumferential direction.
- the laterally open recesses 3 allow, for example, a coolant supply from the side, as is done via the devices 5 in FIG. 2.
- the coolant and / or lubricant which emerges in liquid form from the nozzles of the devices 5 can penetrate from the side into the laterally open recesses and is guided there to the center of the grinding wheel due to the V-shape of the recess.
- Fig. 4 shows a highly schematic of a grinding wheel according to the invention and a device 5 for supplying coolant and / or lubricant in a substantially tangential direction just above the contact area with the workpiece 6. According to the invention, not only in the same direction but also in the opposite direction grind.
- each recess 3 extends in depth into the carrier disc 1.
- a recess area 3a is still available as a cup-shaped or bucket-shaped area 5 stands in place of thicker abrasive segments, a preferably single-layer thin layer of abrasive grain can also be applied to the carrier.
- the recesses can then mainly extend in depth in the carrier.
- the segments each have a radially outer one Abrasives, in particular abrasive grain, contain, the radial thickness of this outer area being less than the radial extent of the recesses between the segments
- the grinding segments 2 are essentially U-shaped, so that overall there are essentially U-shaped recesses 3 between them, which are cup-shaped or scoop-shaped in a radial view of the circumference of the grinding wheel
- the grinding segments 2 are angled twice at right angles in the plan view and arranged so closely to one another that there is no opening to the side of the grinding wheel, that is to say essentially cup-shaped recesses 3 are formed. or V-shaped recesses there is no directional guide effect towards the center of the grinding wheel in this exemplary embodiment, however, the laterally closed cup-shaped recesses are sufficient to achieve an improvement over conventional grinding wheels, in which the recesses are completely open to the side
- the diameter of the grinding wheel varies over the width of the grinding wheel, ie the grinding layer 2 applied to the carrier 1 has a height profile H, the maximum of which is denoted by 2 '.
- This maximum is 2' most heavily loaded during grinding
- the invention now allows, by special design of the recesses 3, as shown, for example, in FIG. 9b, to supply most of the cow medium precisely to this maximum 2 ′, for example by the tip 3 ′ of a V-shaped area with respect to the
- the circumferential movement 8 at the same latitude (indicated by the dashed line 7) lies like the maximum 2 '.
- This configuration means that the coolant and / or lubricant is preferably required at the latitude 7 and thus that 6 Height maximum 2 'in the diameter of the grinding wheel preferably cooled or lubricated.
- the invention allows a specific distribution and supply of the coolant and / or lubricant to be realized by special design of the recesses.
- the grinding segment 2 - seen in the radial direction - is designed differently, only the radially outer region 2b has grinding grain.
- the radially inner area 2b is free of abrasive grain. Nevertheless, the recess 3 extends in the radial direction over both areas 2a and 2b.
- FIG. 11 a to 11 c show further exemplary embodiments for the arrangement of the recesses 3.
- U-shaped and V-shaped recesses alternate, in FIG. 11 b there are two V-shaped recesses, forming one overall “Jagged” line arranged side by side.
- FIG. 11c shows V-shaped recesses 3 distributed over the circumferential surfaces.
- the invention is not restricted to the exemplary embodiments shown.
- the shape of the segments or the recesses formed between them can vary, for example a serrated shape of the recesses is possible.
- the length and the dimensioning of the segments or the recesses can be adapted to the respective grinding requirements. In principle, it is also possible to use a continuous grinding layer in which the recesses are formed. In practice, however, it is probably cheaper to build up a large number of segments directly or at a distance from one another.
- the concept of the grinding wheel can be seen widely and also includes scanning tools.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Pulleys (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02003521A EP1225007A1 (de) | 1998-04-21 | 1999-04-19 | Schleifscheibe |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT67398 | 1998-04-21 | ||
AT67398 | 1998-04-21 | ||
PCT/AT1999/000096 WO1999054089A1 (de) | 1998-04-21 | 1999-04-19 | Schleifscheibe |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02003521A Division EP1225007A1 (de) | 1998-04-21 | 1999-04-19 | Schleifscheibe |
EP02003521.8 Division-Into | 2002-02-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0989924A1 true EP0989924A1 (de) | 2000-04-05 |
EP0989924B1 EP0989924B1 (de) | 2002-12-18 |
Family
ID=3496816
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02003521A Withdrawn EP1225007A1 (de) | 1998-04-21 | 1999-04-19 | Schleifscheibe |
EP99916712A Expired - Lifetime EP0989924B1 (de) | 1998-04-21 | 1999-04-19 | Schleifscheibe |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02003521A Withdrawn EP1225007A1 (de) | 1998-04-21 | 1999-04-19 | Schleifscheibe |
Country Status (11)
Country | Link |
---|---|
US (1) | US6283845B1 (de) |
EP (2) | EP1225007A1 (de) |
JP (1) | JP2002505622A (de) |
KR (1) | KR20010020467A (de) |
CN (1) | CN1130275C (de) |
AT (1) | ATE229869T1 (de) |
AU (1) | AU3512199A (de) |
BR (1) | BR9906371A (de) |
CA (1) | CA2294490A1 (de) |
DE (1) | DE59903817D1 (de) |
WO (1) | WO1999054089A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6705936B2 (en) * | 2001-03-13 | 2004-03-16 | Wendt Dunnington Company | Large-width, angular-sided segmental superabrasive grinding wheel |
US6892719B2 (en) | 2002-04-10 | 2005-05-17 | Soff-Cut International, Inc. | Blade for cutting concrete |
DE102005026828B4 (de) * | 2004-06-09 | 2013-04-11 | Günter Effgen GmbH | Schleifwerkzeug |
US20090199693A1 (en) * | 2005-04-20 | 2009-08-13 | Saint-Gobain Abrasives, Inc. | Circular Saw Blade With Elliptical Gullets |
JP2008119819A (ja) * | 2006-10-20 | 2008-05-29 | Jtekt Corp | 凹部入り砥石の製造方法 |
US8701536B2 (en) * | 2008-01-22 | 2014-04-22 | Saint-Gobain Abrasives, Inc. | Circular saw blade with offset gullets |
JP5465257B2 (ja) * | 2010-01-13 | 2014-04-09 | 株式会社アライドマテリアル | 超砥粒ホイール、その使用方法およびそれを用いたウエハの製造方法ならびにウエハ |
JP5325154B2 (ja) * | 2010-04-07 | 2013-10-23 | 三菱重工業株式会社 | 研削工具及び研削工具の製造方法 |
JP5325153B2 (ja) * | 2010-04-07 | 2013-10-23 | 三菱重工業株式会社 | 研削工具 |
JP5371873B2 (ja) * | 2010-04-07 | 2013-12-18 | 三菱重工業株式会社 | 研削工具 |
CN102528677B (zh) * | 2012-01-17 | 2015-04-15 | 桂林创源金刚石有限公司 | 高效切削砂轮 |
CN102528676B (zh) * | 2012-01-17 | 2015-05-06 | 桂林创源金刚石有限公司 | 外冷式磨床用内冷式砂轮 |
DE102012005085A1 (de) † | 2012-03-13 | 2013-09-19 | Dr. Müller Diamantmetall AG | Werkzeug zum Bearbeiten von Materialien |
CN103862394B (zh) * | 2012-12-16 | 2017-04-19 | 盖茨优霓塔传动系统(苏州)有限公司 | 磨轮 |
US9149913B2 (en) * | 2012-12-31 | 2015-10-06 | Saint-Gobain Abrasives, Inc. | Abrasive article having shaped segments |
US9750533B2 (en) * | 2013-04-12 | 2017-09-05 | L'oreal | Exfoliating head for a personal care appliance |
CN103737501A (zh) * | 2013-09-12 | 2014-04-23 | 江苏万达特种轴承有限公司 | 防磨削烧伤的砂轮 |
JP6411136B2 (ja) * | 2014-08-29 | 2018-10-24 | 本田技研工業株式会社 | 円盤状砥石 |
JP5906335B1 (ja) * | 2015-02-28 | 2016-04-20 | 鋼鈑工業株式会社 | 磨き装置およびこの磨き装置に用いる磨きヘッド |
CN104669090B (zh) * | 2015-03-02 | 2016-09-07 | 安徽工业大学 | 一种砂轮设有人字型槽的磨削装置及磨削方法 |
CN108687680A (zh) * | 2018-04-17 | 2018-10-23 | 株洲钻石切削刀具股份有限公司 | 一种用于粗磨硬质合金刀具容屑槽的成型砂轮 |
CN108393815B (zh) * | 2018-05-03 | 2023-07-14 | 西安增材制造国家研究院有限公司 | 表面钎焊磨粒内喷润滑液砂轮的磨削装置 |
KR102682515B1 (ko) | 2018-10-19 | 2024-07-09 | 생-고뱅 어브레이시브즈, 인코포레이티드 | 그라인딩 휠 조립체 |
PL3663043T3 (pl) | 2018-12-03 | 2022-01-17 | Vincent S.R.L. | Narzędzie szlifierskie |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
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DE530992C (de) | 1927-10-15 | 1931-08-06 | Karl Krug Dr Ing | Mit der zylindrischen Kranzflaeche arbeitende Schleifscheibe, deren Kranz aus Einzelschleifkoerpern besteht |
GB403159A (en) | 1932-07-18 | 1933-12-21 | Joseph Rogerson | Improvements in and relating to the manufacture of mouldings and shaped sections by means of abrasive wheels |
US2049874A (en) * | 1933-08-21 | 1936-08-04 | Miami Abrasive Products Inc | Slotted abrasive wheel |
US2032362A (en) * | 1934-04-23 | 1936-03-03 | Carborundum Co | Segmental grinding wheel |
FR894614A (fr) * | 1943-02-05 | 1944-12-29 | Fromholt Et Janssens Ets | Perfectionnements apportés aux meules abrasives |
US3540162A (en) * | 1967-02-23 | 1970-11-17 | Norton Co | Diamond abrasive tool |
US3579928A (en) * | 1969-07-14 | 1971-05-25 | Gerhard R Held | Self-air cooling abrading wheel |
DE2543275C3 (de) | 1975-05-16 | 1979-11-08 | Diamant Boart S.A., Bruessel | Umfangs-Segmentschleifscheibe |
US4484417A (en) * | 1982-11-22 | 1984-11-27 | W. J. Savage Company | Sawing apparatus |
DE3804781A1 (de) * | 1987-02-28 | 1989-06-01 | Zahnradfabrik Friedrichshafen | Schleifscheibe |
US4854087A (en) * | 1987-02-28 | 1989-08-08 | Zahnradfabrik Friedrichshafen A.G. | Grinding disc |
US5184597A (en) * | 1990-04-27 | 1993-02-09 | Edward Chiuminatta | Apparatus and method for cutting unhardened concrete |
JPH0539862U (ja) | 1991-11-06 | 1993-05-28 | 豊田工機株式会社 | セグメント砥石 |
US5251408A (en) | 1992-07-27 | 1993-10-12 | Ford Motor Company | Grinding wheel assembly |
US5423717A (en) * | 1993-10-04 | 1995-06-13 | Ford Motor Company | Grinding wheel assembly |
US5611724A (en) | 1995-12-01 | 1997-03-18 | General Electric Company | Grinding wheel having dead end grooves and method for grinding therewith |
US5787871A (en) * | 1997-03-17 | 1998-08-04 | Western Saw, Inc. | Cutting disc with tabs |
-
1999
- 1999-04-19 CA CA002294490A patent/CA2294490A1/en not_active Abandoned
- 1999-04-19 EP EP02003521A patent/EP1225007A1/de not_active Withdrawn
- 1999-04-19 KR KR1019997011973A patent/KR20010020467A/ko not_active Application Discontinuation
- 1999-04-19 DE DE59903817T patent/DE59903817D1/de not_active Expired - Fee Related
- 1999-04-19 AT AT99916712T patent/ATE229869T1/de not_active IP Right Cessation
- 1999-04-19 BR BR9906371-9A patent/BR9906371A/pt active Search and Examination
- 1999-04-19 AU AU35121/99A patent/AU3512199A/en not_active Abandoned
- 1999-04-19 JP JP55218499A patent/JP2002505622A/ja active Pending
- 1999-04-19 EP EP99916712A patent/EP0989924B1/de not_active Expired - Lifetime
- 1999-04-19 CN CN99800577A patent/CN1130275C/zh not_active Expired - Fee Related
- 1999-04-19 US US09/446,331 patent/US6283845B1/en not_active Expired - Fee Related
- 1999-04-19 WO PCT/AT1999/000096 patent/WO1999054089A1/de not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9954089A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59903817D1 (de) | 2003-01-30 |
CA2294490A1 (en) | 1999-10-28 |
US6283845B1 (en) | 2001-09-04 |
EP1225007A1 (de) | 2002-07-24 |
ATE229869T1 (de) | 2003-01-15 |
KR20010020467A (ko) | 2001-03-15 |
CN1263488A (zh) | 2000-08-16 |
JP2002505622A (ja) | 2002-02-19 |
EP0989924B1 (de) | 2002-12-18 |
BR9906371A (pt) | 2000-07-11 |
WO1999054089A1 (de) | 1999-10-28 |
AU3512199A (en) | 1999-11-08 |
CN1130275C (zh) | 2003-12-10 |
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