EP2286959A2 - Outil d'ébauchage et de ponçage - Google Patents

Outil d'ébauchage et de ponçage Download PDF

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Publication number
EP2286959A2
EP2286959A2 EP10167695A EP10167695A EP2286959A2 EP 2286959 A2 EP2286959 A2 EP 2286959A2 EP 10167695 A EP10167695 A EP 10167695A EP 10167695 A EP10167695 A EP 10167695A EP 2286959 A2 EP2286959 A2 EP 2286959A2
Authority
EP
European Patent Office
Prior art keywords
grinding
fiber
tool according
grinding tool
radius
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
Application number
EP10167695A
Other languages
German (de)
English (en)
Other versions
EP2286959A3 (fr
EP2286959B1 (fr
Inventor
Bernd Stuckenholz
Nicolas Huth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
August Rueggeberg GmbH and Co KG
Original Assignee
August Rueggeberg GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE200910038583 external-priority patent/DE102009038583A1/de
Priority claimed from DE201010029553 external-priority patent/DE102010029553A1/de
Application filed by August Rueggeberg GmbH and Co KG filed Critical August Rueggeberg GmbH and Co KG
Publication of EP2286959A2 publication Critical patent/EP2286959A2/fr
Publication of EP2286959A3 publication Critical patent/EP2286959A3/fr
Application granted granted Critical
Publication of EP2286959B1 publication Critical patent/EP2286959B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • 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
    • B24D7/02—Wheels in one piece
    • B24D7/04—Wheels in one piece with reinforcing means

Definitions

  • Such roughing-grinding tools are known in practice in large numbers.
  • Such fiber grinding wheels are flexible and releasably mounted on the support plate.
  • the mounting on the support plate is done by a screw-on flange in the Kröpfungs Society the fiber grinding wheel.
  • the service life of the fiber grinding wheel is short, for example only about 1 minute.
  • the abrasive grain of the fiber abrasive disc shows its first signs of wear, whereby the surface of the workpiece to be machined is no longer completely uniform. The fiber grinding wheel is therefore already replaced after this time.
  • Abrasive base are known, as they are common practice, which thus consist of a serving as a support or underlay elastically flexible disc on which an abrasive grain is attached by means of a synthetic resin.
  • the invention has for its object to design a roughing-grinding tool of the generic type so that it has a long service life with simple and inexpensive construction.
  • the fiber disc is made of vulcanized fiber, a material that has been known for a century and a half and made from cotton fibers. Surprisingly, it has also been found that the roughing and grinding tool is far superior to conventional roughing wheels both in terms of machined mass per unit time and overall machinable mass. This is especially true when Ceramic grain is used as an abrasive.
  • the grinding wheel with the abrasive coating is slightly convexly curved towards the grinding side.
  • Such rough grinding wheels so roughing-grinding tools are used on hand-held grinding machines, an exact angular position of the grinding tool against the surface to be ground is usually not observed when using.
  • the slight curvature causes no high local surface pressures between the grinding wheel and the workpiece to be machined, with the result of a corresponding tearing of abrasive grain occur. This leads to a considerable increase in the service life or the cutting performance.
  • the grinding portion is divided into a main grinding portion and a radially outer smaller outer grinding portion, with the outer grinding portion being curved more toward the back of the grinding tool, the risk of the grinding tool is increased Removal of the grinding wheel from the carrier plate further reduced.
  • the grinding tool can hereby also be used for a short time for face grinding.
  • FIGS. 1 to 3 illustrated roughing-grinding tool has a in the usual way from impregnated with phenolic resin and compressed glass fibers existing support plate 1, which has a flat, annular clamping area 2 in the usual way, in which a likewise circular opening 3 for receiving a drive shaft Drive machine is formed.
  • the annular clamping region 2 surrounding the opening 3 is provided with a metal ring 5 on the rear side of the support plate 1 remote from a grinding side 4.
  • the clamping area 2 is adjoined by a cranking area 6, which is likewise of annular design and rises radially to the axis 7 of the carrier plate 1 towards the grinding side 4.
  • the cranking region 6 is adjoined by an annular grinding region 8, which is inclined radially outward from the grinding side 4, counter to the cranking region 6, radially to the axis 7.
  • This embodiment of a support plate 1 is well known and common.
  • a fiber grinding wheel 9 is attached on the grinding side 4, which is a so-called abrasive on a base, which consists of a fiber disk 10 as a support or base and a resin-bonded abrasive coating 11.
  • the fiber disk 10 is made of vulcanized fiber, which is a bound, pressed material based on cotton fibers.
  • the abrasive coating 11 is formed by ceramic grain 11.1, which is produced from a microgranulate by sintering. The microgranules break individually from the respective grain, so that thereby the stability of the ceramic grain 11.1 is significantly increased compared to conventional abrasives.
  • the resin bonded abrasive pad 11 is bonded to the fiber disk 10 in the usual manner.
  • the fiber disk 10 of the fiber grinding wheel 9 is connected to the grinding side 4 of the support plate 1 by means of an adhesive layer 12.
  • the radius R1 of the support plate 1 is - like FIG. 1 can be removed - slightly smaller than the radius R9 of the fiber grinding wheel 9, without the fiber grinding wheel 9 projecting radially to the axis 7 on the outer edge 13 of the support plate 1.
  • the cranking region 6 has a radius R6 from the axis 7 at the transition to the main grinding region 8.
  • the main grinding portion 8 has a radius R8 from the axis 7 which is equal to the radius R9 of the fiber grinding disc 9.
  • the support plate 1 ' consists of a glass cloth impregnated with epoxy resin. He has - as in the embodiment of the FIGS. 1 to 3 - a constant thickness h.
  • the planar annular clamping area 2 ' is likewise formed with a circular opening 3' for receiving a drive shaft of a drive machine.
  • the annular clamping region 2 'surrounding the opening 3' is not reinforced with a metal ring in this exemplary embodiment.
  • the curvature region 6 'adjoining the clamping region 2' is likewise of annular design and rises radially to the axis 7 'of the carrier plate 1' towards the grinding side 4 '.
  • the planar clamping region 2 ' merges with a radius of curvature r2' in the cranking region 6 '.
  • the cranking region 6 ' is adjoined in turn by an annular main grinding region 8', which extends radially to the axis 7 'against the cranking region 6', namely radially to the axis 7 'outwardly from the grinding side 4' is inclined. Seen from the axis 7 'to the outside of the grinding area 8' so from the grinding side 4 'inclined away.
  • FIG. 4 Also in the design FIG. 4 is on the grinding side 4 'of the support plate 1' a fiber grinding disc 9 'attached.
  • This is also a so-called abrasive on a base, which consists of a fiber disk 10 'as a support or base and a resin-bonded abrasive coating 11'.
  • the fiber grinding wheel 9 ' is thus a self-contained grinding wheel, which could be used, as described above for the prior art according to EP 1 741 515 B1 has been described. It is flexible, so flexible.
  • the structure of the fiber grinding wheel 9 ' corresponds to the above to the FIGS. 1 to 3 already described.
  • the abrasive coating 11 'thus has ceramic grain 11.1'.
  • the fiber slice 10 'of the fiber abrasive disc 9' connected to the support plate 1 'by means of an adhesive layer 12'.
  • cranking region 6 ' is in the grinding area 8' with a radius of curvature r6 'on.
  • the main grinding area 8 'itself is also curved, slightly convex to the grinding side 4' with a radius of curvature r8 '.
  • the outer grinding area 15 'adjoining the main grinding area 8' is inclined radially outward away from the grinding side 4 'and convexly curved toward the grinding side 4' with a radius of curvature r15 '.
  • the fiber abrasive disc 9 ' has a radius R9' from the axis 7 '.
  • the offset area 6 ' has a radius R6' from the axis 7 'at the transition to the main grinding area 8'.
  • the main grinding area 8 ' has a radius R8' from the axis 7 'which is equal to the radius only R9 'of the fiber abrasive disc 9' is when there is no separate more curved outer abrasive region 15 '.
  • the radii R6 'and R8' with respect to the radius R9 ' the following applies: 0 . 45 R ⁇ 9 ⁇ ' ⁇ R ⁇ 6 ⁇ ' ⁇ 0 . 7 R ⁇ 9 ⁇ ' 0 . 75 R ⁇ 9 ⁇ ' ⁇ R ⁇ 8th ⁇ ' ⁇ R ⁇ 9 ⁇ '
  • FIG. 5 is different from that FIG. 4 in that the support plate 1 "has a radially outwardly increasing elasticity, that is to say a lower rigidity or greater flexibility
  • FIG. 4 Matching parts or areas are therefore designated by the same reference numerals and all similar parts or areas with the same reference numerals as to FIG. 4 have been used, supplemented by a double-dashed line, without requiring a new description.
  • the increasing elasticity of the support plate 1 "in the direction of the outer edge 13" is achieved in that the support plate 1 "has a plurality of respectively annular sections 16, 17 and 18, which have a different, radially outwardly decreasing thickness FIG. 5 the section 16 extends approximately as far as the transition from the cranking area 6 'into the main grinding area 8 ", here it has the thickness h, the annular section 17 extending radially outward extending radially to the outside. Grinding range 15 ".
  • the portion 17 has a thickness h '; the outer portion 18 has a thickness h ", where h> h '>h".
  • FIG. 5 assume that there are at least two such sections and no more than five such sections are. For the radii R6 ', R8 "and R9', the above relationships apply.
  • FIG. 6 the use of the roughing-grinding tool according to the invention on manual grinding machines 19 emerges.
  • the roughing-grinding tool is mounted on an output shaft 20 of the hand grinder 19, which is inserted through the opening 3 of the grinding tool, so that the axis 7 coincides with the central axis of the output shaft 20.
  • the attachment of the grinding tool on the output shaft 20 by means of a clamping nut 21st
  • the stronger curvature in the outer grinding area 15 'or 15 "causes when abutting the outer edge 13' or 13" of the grinding wheel to an object no detachment of the fiber grinding wheel 9 'together with abrasive coating 11 from the support plate. 1 'or 1 "takes place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP10167695.5A 2009-08-22 2010-06-29 Outil d'ébauchage et de ponçage Not-in-force EP2286959B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910038583 DE102009038583A1 (de) 2009-08-22 2009-08-22 Schleif-Werkzeug
DE201010029553 DE102010029553A1 (de) 2010-06-01 2010-06-01 Schleif-Werkzeug

Publications (3)

Publication Number Publication Date
EP2286959A2 true EP2286959A2 (fr) 2011-02-23
EP2286959A3 EP2286959A3 (fr) 2011-03-16
EP2286959B1 EP2286959B1 (fr) 2014-05-07

Family

ID=43216919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10167695.5A Not-in-force EP2286959B1 (fr) 2009-08-22 2010-06-29 Outil d'ébauchage et de ponçage

Country Status (9)

Country Link
US (1) US20110045750A1 (fr)
EP (1) EP2286959B1 (fr)
CN (1) CN101992429B (fr)
AU (1) AU2010212470A1 (fr)
BR (1) BRPI1003157A2 (fr)
CA (1) CA2715530A1 (fr)
RU (1) RU2010132291A (fr)
TW (1) TW201111108A (fr)
ZA (1) ZA201005883B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20110173A1 (it) * 2011-04-06 2012-10-07 Mattia Mauro Di Utensile.
WO2015067377A1 (fr) * 2013-11-11 2015-05-14 Dipl.-Ing. Günter Wendt GmbH Outil abrasif à fibres vulcanisées
EP2570238A3 (fr) * 2011-09-19 2017-09-27 Deerfos Co., Ltd Produit abrasif écologique pour broyeur et procédé de fabrication associé
RU2771903C1 (ru) * 2018-10-19 2022-05-13 Август Рюггеберг Гмбх & Ко. Кг Шлифовальный инструмент и способ изготовления шлифовального инструмента

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202825577U (zh) * 2012-06-11 2013-03-27 深圳市常兴技术股份有限公司 磨削有机玻璃的金刚石磨具
JP6529210B2 (ja) * 2013-04-04 2019-06-12 スリーエム イノベイティブ プロパティズ カンパニー 研磨ディスクを用いる研磨方法およびこれに用いる物品
US20210245329A2 (en) * 2016-08-23 2021-08-12 Pferd Milwaukee Brush Company, Inc. Roughing grinding tool
US20220080555A1 (en) * 2020-09-16 2022-03-17 ÜÇER ZIMPARA TASI SAN.ve TIC.LTD.STI. Bilateral abrasive disc pad
KR102296729B1 (ko) * 2021-06-03 2021-08-31 빈인선 밀착 효율이 높은 전동연마기 탈부착용 연마디스크

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8814637U1 (de) 1987-12-16 1989-03-02 Reiling, Karl, 7535 Königsbach-Stein Schleifkörper
DE9017256U1 (de) 1990-12-21 1991-03-14 Wendt, Günther, 5227 Windeck Fächerstirnschleifscheibe
EP0750539B1 (fr) 1994-03-16 1998-12-23 Minnesota Mining And Manufacturing Company ARTICLE ABRASIF, ARTICLE ABRASIF SUR SUPPORT et agglomérat d'agent de broyage erodable
EP0617652B1 (fr) 1991-12-20 1999-03-24 Minnesota Mining And Manufacturing Company Support pour abrasif enrobe
WO2002074494A1 (fr) 2001-03-19 2002-09-26 3M Innovative Properties Company Disque abrasif destine a lisser des cloisons seches
DE102006010366B3 (de) 2006-03-03 2007-10-04 Lukas-Erzett Vereinigte Schleif- und Fräswerkzeugfabriken GmbH & Co KG Schleiflamelle und diese enthaltende Schleifscheibe
EP1741515B1 (fr) 2005-07-05 2007-11-07 August Rüggeberg GmbH & Co. KG Outil

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DE2324616A1 (de) * 1972-05-17 1973-12-06 S P A M Schleifwerkzeuge
US5273558A (en) * 1991-08-30 1993-12-28 Minnesota Mining And Manufacturing Company Abrasive composition and articles incorporating same
DE4129090A1 (de) * 1991-09-02 1993-03-04 Rueggeberg August Fa Schleifscheibe
US6280309B1 (en) * 1995-10-19 2001-08-28 Norton Company Accessories and attachments for angle grinder
EP0909612B1 (fr) * 1997-10-16 2002-06-19 August Rüggeberg GmbH & Co. Disque abrasif
DE10106631A1 (de) * 2001-02-12 2002-08-22 Rueggeberg August Gmbh & Co Tragteller für Fächerschleifscheibe und Fächerschleifscheibe
US6863596B2 (en) * 2001-05-25 2005-03-08 3M Innovative Properties Company Abrasive article
US6723142B2 (en) * 2002-06-05 2004-04-20 Tepco Ltd. Preformed abrasive articles and method for the manufacture of same
TWI238753B (en) * 2002-12-19 2005-09-01 Miyanaga Kk Diamond disk for grinding
US20050120636A1 (en) * 2003-12-09 2005-06-09 Yong Bum Kim Preparation of coated abrasive disk
DE102004001546A1 (de) * 2004-01-10 2005-08-04 August Rüggeberg Gmbh & Co. Kg Werkzeug
DE102004032311A1 (de) * 2004-07-03 2006-01-19 August Rüggeberg Gmbh & Co. Kg Trenn-Schleifscheibe für stationären Einsatz
KR100802512B1 (ko) * 2006-09-21 2008-02-12 주식회사 썬텍인더스트리 연마 디스크 및 그의 제조방법
DE102008023946B3 (de) * 2008-05-16 2009-04-02 August Rüggeberg Gmbh & Co. Kg Schrupp-Schleifscheibe
DE202008014496U1 (de) * 2008-06-04 2009-01-15 August Rüggeberg Gmbh & Co. Kg Fächer-Schleifscheibe
US8430725B2 (en) * 2008-12-19 2013-04-30 Jovan Pajovic Abrasive disc construction

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8814637U1 (de) 1987-12-16 1989-03-02 Reiling, Karl, 7535 Königsbach-Stein Schleifkörper
DE9017256U1 (de) 1990-12-21 1991-03-14 Wendt, Günther, 5227 Windeck Fächerstirnschleifscheibe
EP0617652B1 (fr) 1991-12-20 1999-03-24 Minnesota Mining And Manufacturing Company Support pour abrasif enrobe
DE69228760T2 (de) 1991-12-20 1999-08-05 Minnesota Mining And Mfg. Co., Saint Paul, Minn. Überzogene schleifträger
EP0750539B1 (fr) 1994-03-16 1998-12-23 Minnesota Mining And Manufacturing Company ARTICLE ABRASIF, ARTICLE ABRASIF SUR SUPPORT et agglomérat d'agent de broyage erodable
DE69506851T2 (de) 1994-03-16 1999-07-08 Minnesota Mining and Mfg. Co., St. Paul, Minn. SCHLEIFKÖRPER, beschichteter Schleifkörper und erodierbares Schleifhilfsmittelagglomerat
WO2002074494A1 (fr) 2001-03-19 2002-09-26 3M Innovative Properties Company Disque abrasif destine a lisser des cloisons seches
EP1741515B1 (fr) 2005-07-05 2007-11-07 August Rüggeberg GmbH & Co. KG Outil
DE102006010366B3 (de) 2006-03-03 2007-10-04 Lukas-Erzett Vereinigte Schleif- und Fräswerkzeugfabriken GmbH & Co KG Schleiflamelle und diese enthaltende Schleifscheibe

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20110173A1 (it) * 2011-04-06 2012-10-07 Mattia Mauro Di Utensile.
WO2012137143A1 (fr) * 2011-04-06 2012-10-11 Mauro Di Mattia Machine d'usinage de surface
EP2570238A3 (fr) * 2011-09-19 2017-09-27 Deerfos Co., Ltd Produit abrasif écologique pour broyeur et procédé de fabrication associé
WO2015067377A1 (fr) * 2013-11-11 2015-05-14 Dipl.-Ing. Günter Wendt GmbH Outil abrasif à fibres vulcanisées
AU2014345944B2 (en) * 2013-11-11 2017-02-02 Gunter Wendt Gmbh Vulcanized fiber grinding tool
US10046439B2 (en) 2013-11-11 2018-08-14 Dipl.-Ing. Guenter Wendt Gmbh Vulcanized fiber grinding tool
RU2771903C1 (ru) * 2018-10-19 2022-05-13 Август Рюггеберг Гмбх & Ко. Кг Шлифовальный инструмент и способ изготовления шлифовального инструмента

Also Published As

Publication number Publication date
BRPI1003157A2 (pt) 2012-04-10
RU2010132291A (ru) 2012-02-10
EP2286959A3 (fr) 2011-03-16
TW201111108A (en) 2011-04-01
US20110045750A1 (en) 2011-02-24
EP2286959B1 (fr) 2014-05-07
CA2715530A1 (fr) 2011-02-22
CN101992429A (zh) 2011-03-30
CN101992429B (zh) 2015-04-08
ZA201005883B (en) 2013-08-28
AU2010212470A1 (en) 2011-03-10

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