EP0319756B1 - Dispositif de blocage d'outil pouvant être entraîné en rotation - Google Patents

Dispositif de blocage d'outil pouvant être entraîné en rotation Download PDF

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Publication number
EP0319756B1
EP0319756B1 EP88119268A EP88119268A EP0319756B1 EP 0319756 B1 EP0319756 B1 EP 0319756B1 EP 88119268 A EP88119268 A EP 88119268A EP 88119268 A EP88119268 A EP 88119268A EP 0319756 B1 EP0319756 B1 EP 0319756B1
Authority
EP
European Patent Office
Prior art keywords
tool
locking
locking device
clamping
hub
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
Application number
EP88119268A
Other languages
German (de)
English (en)
Other versions
EP0319756A3 (en
EP0319756A2 (fr
Inventor
Werner Montabaur
Detlef Thomas
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.)
Monti Werkzeuge GmbH
Original Assignee
Monti Werkzeuge GmbH
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
Application filed by Monti Werkzeuge GmbH filed Critical Monti Werkzeuge GmbH
Priority to AT88119268T priority Critical patent/ATE90258T1/de
Publication of EP0319756A2 publication Critical patent/EP0319756A2/fr
Publication of EP0319756A3 publication Critical patent/EP0319756A3/de
Application granted granted Critical
Publication of EP0319756B1 publication Critical patent/EP0319756B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/04—Rigid drums for carrying flexible material

Definitions

  • the invention relates to a rotatably driven tool clamping device with at least two clamping disks and a common clamping screw for clamping a tool sleeve between the two clamping disks.
  • Tool sleeve means within the scope of the invention a sleeve-like tool, that is, a sleeve with a tool-forming sleeve outside. This can be, for example, an abrasive paper sleeve, a brush sleeve with radially projecting bristles, or the like.
  • a tool chuck according to the preamble of claim 1 is e.g. known from CH-A-359 376.
  • the invention has for its object to provide a rotatably drivable tool clamping device of the type described above, which, without a rubber core or the like supporting body, always ensures correct positioning and stabilization of the clamped tool sleeve, so that no deformations result from the stresses applied during use , i.e. a cylindrical tool surface is always available, even if the tool sleeve is made of flexible material and has no support core.
  • the result of the measures of the invention is that tool sleeves made of flexible material surprisingly obtain a rotational stability that increases with increasing speed about their central axis of rotation, so that the result is a rigid work cylinder that can withstand the highest attacking stresses with a restoring effect without deformation in use enter. Hence is the rotational static on the resulting centrifugal forces, which also ensures perfect centering of the relevant tool sleeve in the ring grooves.
  • the tool clamping device according to the invention makes the conventional use of rubber cores or similar support bodies for tool sleeves, even those made of flexible or flexible material, superfluous.
  • the invention provides that the one clamping washer, the clamped tool sleeve on the outside overlapping axial webs and the other clamping washer in a corresponding distribution, for. B. 120 ° distribution, insertion recesses for the web ends of the axial webs. Thanks to these axial webs, the cylindrical shape of the tool sleeves is retained even with extremely high centrifugal forces.
  • the tool sleeves can have longitudinal grooves for concealed accommodation of the axial webs, but the axial webs can run between the tool elements projecting over them on the sleeve surface.
  • a centering cone can be attached to each of the ring grooves, which facilitate centering and positioning of the tool sleeves.
  • the invention further proposes that the two clamping disks are distanced when the tool sleeve is clamped over a central shaft with a longitudinal bore for the passage of the clamping screw, one clamping disk the central shaft with a polygonal insertion recess at the end and the other clamping disk has a corresponding insertion pin.
  • the polygonal insertion recess or the polygonal insertion mandrel are so matched to the circumferential distribution of the axial webs that the two clamping washers can be inserted quickly and properly with the interposition of the relevant tool sleeve without interfering manipulation and can be clamped by means of the clamping screw.
  • the central shaft also ensures that the two clamping washers are always properly spaced, i.e. deformation of flexible tool sleeves is prevented during the clamping between the clamping washers.
  • the axial webs and the central shaft ensure a rotationally fixed connection between the two tensioning disks, the axis of rotation always running through the tensioning disks and the central shaft or the tensioning screw.
  • the clamping screw has a clamping nut designed as an adapter, which on the one hand can be rotatably inserted into an outside insertion recess of the clamping plate in question and on the other hand for connecting a rotary drive, for. B. a drill or angle grinder is set up.
  • This adapter which is regularly designed as a merchant, can easily be inserted, for example, into the clamping head of a drilling machine or angle grinder and, moreover, has a threaded hole into which the clamping screw is screwed in at the end. At the same time, a rotationally fixed fit of the adapter is ensured in the insertion recess of the assigned clamping disk. - Under certain operating conditions, for example when working at low speeds, it may be advisable to use a stabilizing bushing to stabilize a tool sleeve made of flexible material insert with essentially the same width in the tool sleeve.
  • Such a stabilizing bushing can also serve as an abutment for the tool elements, so that the tool elements are not pressed back into the sleeve interior as a result of the attacking stresses.
  • the tool sleeve is made of flexible material. It can be z.
  • the figures show a rotatably drivable tool clamping device with at least two clamping disks 1, 2 and a common clamping screw 3 for clamping a tool sleeve 4 between the two clamping disks 1, 2, the axis of rotation 5 passing through the clamping disks or clamping screw 3.
  • the two clamping disks 1, 2 have concentric annular grooves 6 for clamping tool sleeves 4 of substantially the same diameter, i.e. each clamping disk 1, 2 each has at least one such annular groove 6.
  • One clamping disk 1 has the clamped tool sleeve on the outside overlapping axial webs 7, the other clamping disk 2 in an appropriate distribution, e.g. B. 120 ° distribution, insertion recesses 8 for the web ends of the axial webs 7.
  • the axial webs 7 limit the associated annular groove 6 on the outer circumference.
  • a centering cone 9 connects to the ring grooves.
  • a tool sleeve 4 made of flexible material is used. According to the embodiment, it is a brush sleeve with radially projecting bristles 17, for. B. U-shaped bristles, this tool sleeve 4 is bristle-free in the region of the crosspieces 7 overlapping it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Gripping On Spindles (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Lubricants (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Claims (7)

  1. Dispositif porte-outil pouvant être entraîné en rotation, avec au moins deux disques de serrage avec des gorges annulaires concentriques et un boulon de serrage commun pour le montage d'une douille d'outil entre les deux disques de serrage,
    caractérisé en ce qu'un disque de serrage (1) présente des branches axiales (7) qui s'engagent dans des évidements (8) de forme complémentaire ménagés dans l'autre disque de serrage (2), en ce que les branches axiales (7) délimitent les gorges annulaires (6) sur leur périphérie extérieure et recouvrent une douille d'outil (4) destinée à être serrée dans le dispositif, de telle sorte qu'il est possible de serrer entre les deux disques de serrage (1,2) des douilles d'outils (4) en matière flexible sans noyau d'appui.
  2. Dispositif porte-outil selon la revendication 1, caractérisé en ce qu'un disque de serrage (1) présente les branches axiales (7) recouvrant extérieurement la douille d'outil (4) serrée et l'autre disque de serrage (2) présente, avec une répartition correspondante, par exemple à 120°, des évidements (8) d'encastrement pour les extrémités des branches axiales (7).
  3. Dispositif porte-outil selon une des revendications 1 ou 2, caractérisé en ce qu'un cône de centrage (9) se raccorde chaque fois aux gorges annulaires (6) sur la périphérie intérieure de celles-ci.
  4. Dispositif porte-outil selon une des revendications 1 ou 2, caractérisé en ce que les deux disques de serrage (1, 2) sont distancés, quand une douille d'outil (4) est montée, par un arbre central (10) avec un alésage longitudinal (11) pour le passage du boulon de serrage (3), un des disques de serrage (1) présentant l'arbre central (10) avec, sur son extrémité, un évidement polygonal (12) d'encastrement, tandis que l'autre disque de serrage (2) présente un poinçon encastrable (13) correspondant.
  5. Dispositif porte-outil selon une des revendications 1 à 4, caractérisé en ce que le bouton de serrage (3) présente un écrou de serrage constituant un adaptateur (14) qui peut, d'une part, s'encastrer dans un évidement d'encastrement (15) ménagé dans la face extérieure du disque de serrage (1) correspondant, en étant solidaire en rotation avec celui-ci, et qui est, d'autre part, agencé pour le raccordement à un moyen d'entraînement en rotation, par exemple une perceuse ou une meuleuse d'angle.
  6. Dispositif porte-outil selon une des revendications 1 à 5, caractérisé en ce qu'un manchon stabilisateur (16) peut être inséré dans la douille d'outil (4), avec une largeur sensiblement égale.
  7. Dispositif porte-outil selon une des revendications 1 à 6, caractérisé en ce que la douille d'outil (4) est en matériau flexible, en étant par exemple sous la forme d'une douille de brosse avec des poils se dressant radialement, par exemple des poils (17) en forme de U et en étant dépourvue de poils dans la région des branches axiales (7) qui la recouvrent.
EP88119268A 1987-12-11 1988-11-19 Dispositif de blocage d'outil pouvant être entraîné en rotation Expired - Lifetime EP0319756B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88119268T ATE90258T1 (de) 1987-12-11 1988-11-19 Rotativ antreibbare werkzeugspannvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873741983 DE3741983A1 (de) 1987-12-11 1987-12-11 Rotativ antreibbare werkzeugspannvorrichtung
DE3741983 1987-12-11

Publications (3)

Publication Number Publication Date
EP0319756A2 EP0319756A2 (fr) 1989-06-14
EP0319756A3 EP0319756A3 (en) 1990-09-05
EP0319756B1 true EP0319756B1 (fr) 1993-06-09

Family

ID=6342346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119268A Expired - Lifetime EP0319756B1 (fr) 1987-12-11 1988-11-19 Dispositif de blocage d'outil pouvant être entraîné en rotation

Country Status (8)

Country Link
US (1) US5177830A (fr)
EP (1) EP0319756B1 (fr)
JP (1) JPH06309B2 (fr)
KR (1) KR940008051B1 (fr)
AT (1) ATE90258T1 (fr)
CA (1) CA1312193C (fr)
DE (1) DE3741983A1 (fr)
ES (1) ES2041768T3 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036839A1 (de) * 1990-11-19 1992-05-21 Koeppen Renate Antriebsvorrichtung fuer rotationswerkzeuge
DE4033458A1 (de) * 1990-10-20 1992-05-07 Koeppen Renate Sicherheitsrotationsbuerste
DE4326793C1 (de) * 1993-08-10 1994-09-29 Monti Werkzeuge Gmbh Rotativ antreibbares Bürstenaggregat
JP3333627B2 (ja) * 1994-04-06 2002-10-15 株式会社マキタ 回転研削工具のツール固止装置
DE29617206U1 (de) * 1996-10-02 1996-12-05 Osborn International Gmbh Rotationsbürste zur Oberflächenbehandlung von Werkstücken
KR100422676B1 (ko) * 2001-12-27 2004-03-12 한전기공주식회사 튜브 고정장치
US6840848B1 (en) 2002-12-04 2005-01-11 Ralph E. Dyar Bushings and abrasive wheel therewith
US6912755B2 (en) * 2003-09-29 2005-07-05 Lung-Hui Chen Clamping device of a rotating tool
FR2897246A1 (fr) * 2006-02-16 2007-08-17 Brosserie Cardot Mfbi Soc Par Brosse rotative
DE102007048480B3 (de) * 2007-10-09 2009-03-05 SUNMATCH INDUSTRIAL CO., LTD., Zhubei Schleifbürsten-Halteeinrichtung
WO2009147747A1 (fr) * 2008-06-06 2009-12-10 アイオン株式会社 Corps central pour rouleau éponge de nettoyage
DE102009016151B4 (de) 2009-04-05 2012-02-23 Kratzenfabrik Mehlhorn Gmbh Rotationsbürstenwerkzeug zur Oberflächenbearbeitung
DE102016111265A1 (de) 2016-06-20 2017-12-21 Monti-Werkzeuge Gmbh Rotativ antreibbare Drehwerkzeugeinrichtung
CN110434759B (zh) * 2019-07-19 2021-06-04 安徽省潜山县富源特种制刷有限公司 一种防静电抛光刷轮
CN113649550B (zh) * 2021-07-20 2023-04-14 福清湘盛铸造材料有限公司 一种砂芯取芯装置
EP4219073A1 (fr) 2022-01-26 2023-08-02 Monti-Werkzeuge GmbH Dispositif outil rotatif à entraînement rotatif

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US680418A (en) * 1901-02-25 1901-08-13 Ross Moyer Mfg Company Hub for polishing-brushes..
US1281777A (en) * 1918-01-19 1918-10-15 Frank H Hardy Rotatable cylinder.
US1329857A (en) * 1918-11-16 1920-02-03 Rosner Rudolf Milling and grinding tool holder
US1990025A (en) * 1930-10-14 1935-02-05 Osborn Mfg Co Brush
US2002370A (en) * 1930-10-14 1935-05-21 Osborn Mfg Co Brush
US2187350A (en) * 1939-04-29 1940-01-16 Raybestos Manhattan Inc Resilient mounting for abrasive wheels
US2403813A (en) * 1944-07-24 1946-07-09 James J Manderscheid Bushing for polishing wheels
US2756452A (en) * 1953-02-06 1956-07-31 Newark Brush Company Wing type brush
CH359376A (de) * 1955-11-07 1961-12-31 Minnesota Mining & Mfg Schleifvorrichtung, Verwendung der Schleifvorrichtung und Verfahren zu ihrer Herstellung
US2818692A (en) * 1956-09-20 1958-01-07 Russell W Bernstein Abrasive grinding wheel
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DE8717788U1 (fr) * 1987-06-05 1990-05-03 Koeppen, Detlef, 8000 Muenchen, De

Also Published As

Publication number Publication date
US5177830A (en) 1993-01-12
EP0319756A3 (en) 1990-09-05
EP0319756A2 (fr) 1989-06-14
KR940008051B1 (ko) 1994-09-01
DE3741983C2 (fr) 1989-09-14
CA1312193C (fr) 1993-01-05
ES2041768T3 (es) 1993-12-01
DE3741983A1 (de) 1989-06-22
ATE90258T1 (de) 1993-06-15
JPH06309B2 (ja) 1994-01-05
KR890009532A (ko) 1989-08-02
JPH01257570A (ja) 1989-10-13

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