EP1515824A1 - Raccordement d'outil et outil d'insertion - Google Patents

Raccordement d'outil et outil d'insertion

Info

Publication number
EP1515824A1
EP1515824A1 EP03727200A EP03727200A EP1515824A1 EP 1515824 A1 EP1515824 A1 EP 1515824A1 EP 03727200 A EP03727200 A EP 03727200A EP 03727200 A EP03727200 A EP 03727200A EP 1515824 A1 EP1515824 A1 EP 1515824A1
Authority
EP
European Patent Office
Prior art keywords
tool
insert tool
fastening device
axial direction
insert
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Withdrawn
Application number
EP03727200A
Other languages
German (de)
English (en)
Inventor
Harald Krondorfer
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.)
Tyrolit-Schleifmittelwerke Swarovski KG
Robert Bosch GmbH
Original Assignee
Tyrolit-Schleifmittelwerke Swarovski KG
Robert Bosch 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 Tyrolit-Schleifmittelwerke Swarovski KG, Robert Bosch GmbH filed Critical Tyrolit-Schleifmittelwerke Swarovski KG
Publication of EP1515824A1 publication Critical patent/EP1515824A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B24D7/16—Bushings; Mountings
    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/028—Angle tools
    • 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
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/18—Pivoted jaw
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/33—Member applies axial force component
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7005—Lugged member, rotary engagement
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/309352—Cutter spindle or spindle support
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/309352—Cutter spindle or spindle support
    • Y10T409/309408—Cutter spindle or spindle support with cutter holder
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9377—Mounting of tool about rod-type shaft
    • Y10T83/9379—At end of shaft

Definitions

  • the invention is based on a tool holder according to the preamble of claim 1 and an insert tool according to the preamble of claim 11.
  • a tool holder for a hand-held angle grinder and an insert tool with a disk-shaped hub are known.
  • the tool holder has a driving device, via which the hub of the insert tool can be operatively connected to a drive shaft.
  • the tool holder comprises a fastening device with latching elements which have a holding and a releasing position.
  • the hub of the insert tool can be operatively connected to the driving device via the latching elements, which can be moved against a spring element.
  • Recesses are made in the hub, into which the locking elements engage and fix the insert tool when it reaches its operating position.
  • the invention relates to a tool holder for a machine tool, in particular for a hand-held angle grinder, with a driving device, via which an insert tool, which has a disk-shaped hub, can be operatively connected to a drive shaft and with a fastening device, which is a holding and has a release position.
  • the insert tool can be positively connected in the detaching position in the circumferential direction and in the holding position additionally in the axial direction with the driving device.
  • the insert tool is hereby secured in the circumferential direction as soon as it is attached to the driving device.
  • the fastening device which can be brought from the release position into the holding position, additionally secures the insert tool in the holding position in the axial direction.
  • the insert tool can be changed easily by moving the fastening device into the release position. Due to the positive connection of the insert tool with the driving device already in the release position, the fastening device only has to secure the insert tool in the axial direction when the holding position is reached. This results in a particularly safe and simple construction of the fastening device.
  • the insert tool can expediently be changed without tools, as a result of which particularly simple operation can be achieved and the insert tool can be changed quickly. since can.
  • Such a quick-action clamping system which secures the insert tool in one dimension as soon as it is attached, namely in the circumferential direction, has a high level of security. Unintentional running of the insert tool can be safely avoided, even with braked drive shafts where high braking torques can occur.
  • the fastening device advantageously comprises at least one securing element which can be brought from its release position into its holding position by means of a movement process, a movement section of the movement process running perpendicular to the axial direction. Due to the movement perpendicular to the axial direction, the fastening device can easily overlap the insert tool. A simple and secure mechanism for securing the insert tool in the axial direction can be reached, the overlap of the insert tool being achieved in a structurally simple manner with a translation and / or rotation movement.
  • the fastening device can have one or more securing elements for securing the insert tool in the axial direction. If the insert tool is secured with a plurality of securing elements, a uniform and / or symmetrical fastening of the insert tool can advantageously take place with a uniform distribution of the securing elements.
  • the fastening device comprises at least one securing element which can be brought from the release position into the holding position by means of a pivoting movement.
  • the securing element can overlap the insert tool in a structurally simple manner and pivot it in the tool Secure recording, the pivoting movement of the securing element can take place about an axis lying parallel to the axial direction.
  • the securing element has external teeth.
  • the securing element can be moved in a structurally simple manner via the external toothing with a translational movement and / or with a rotational movement about an axis.
  • a locking element rotatable about its axis can be integrated into a device with a compact design.
  • a high level of comfort for an operator can be achieved by implementing a structurally simple translation, in the manner of a gear ratio.
  • the securing element can be controlled via an actuator and moved into its respective release or holding position.
  • a simple and comfortable construction with which the operator can move the securing element into the holding or releasing position can be achieved by the fastening device comprising an adjusting element and the securing element being able to be moved from its releasing to its holding position by means of a movement of the adjusting element.
  • the actuating element can be formed by various components that the person skilled in the art considers useful, such as, for example, a screw, an adjusting disc with a gearwheel, etc.
  • the actuating element advantageously has an internal toothing corresponding to the external toothing. This enables a structurally simple and positive connection between the actuating element and the securing element to be achieved, as a result of which a slip-free connection between the actuating element and the securing element can always be guaranteed.
  • the insert tool can be preloaded in the axial direction with the aid of the securing element.
  • a wobbling movement of the insert tool can advantageously be avoided and safe and precise work can be achieved.
  • the prestressing of the insert tool in the axial direction can be caused by elastic deformation of the securing element, by deformable components, e.g. Rubber parts can be achieved by a locking element which can be deflected in the axial direction or by other measures which the person skilled in the art considers useful.
  • the securing element can be deflected in the axial direction against at least one spring element, insert tools whose hubs have different strengths can be introduced into the tool holder in a structurally simple manner and can be held or secured without play in the axial direction.
  • the fastening device comprises at least one plug-in element with which the insert tool is positively connected in the circumferential direction to the entrainment device. direction is connectable.
  • a structurally simple device can be achieved, with which the insert tool can already be secured in the circumferential direction in the release position.
  • Individual elements can advantageously be designed and dimensioned specifically for their respective function.
  • the plug element can be formed by an opening, by a projection, by a pin, by a bolt, etc.
  • the plug element can for example be arranged on the driving device.
  • the insert tool can be plugged onto a centering collar, the insert tool can be exactly centered in the tool holder, and the insert tool can run safely and with little vibration.
  • the invention is also based on an insert tool for a machine tool, in particular for an angle grinder, which has a hub which can be operatively connected to a drive shaft of the machine tool via a driving device, the driving device comprising a fastening device which comprises a holding and an L ⁇ - has seposition.
  • the hub with the help of the fastening device in the release position in the circumferential direction, and 'in the holding position additionally in the axial direction can be connected positively to the drive device.
  • the insert tool is already secured in the circumferential direction when it is plugged onto the driving device.
  • the fastening device which can be brought from the release position into the holding position, additionally secures the insert tool in the holding position in the axial direction.
  • the insert tool can be changed easily.
  • the insert tool can expediently be changed without tools, as a result of which a particularly simple device can be reached and the insert tool can be changed quickly.
  • the hub has at least one recess with a contour that corresponds to an outer contour of the fastening device, an advantageous coding can be achieved so that only insert tools that have been released by the manufacturer can be fastened in the tool holder.
  • the recess can expediently be penetrated by at least one securing element.
  • the hub of the insert tool can be secured in the tool holder in the axial direction in a structurally simple manner.
  • FIG. 3 shows a partial section through the tool holder according to the invention from FIG. 2,
  • Fig. 4 is a plan view of the tool holder according to the invention from Fig. 2 and
  • FIG 5 shows an insert tool with a hub corresponding to the tool holder according to the invention.
  • FIG. 1 shows an angle grinder 10 from above with an electric motor, not shown in detail, mounted in a housing 42.
  • the angle grinder 10 can be guided via handles 44 and 50.
  • the handle 44 which extends in the longitudinal direction of the housing 42, is integrated into the housing 42 on a side facing away from an insert tool 14.
  • the second handle 50 is fastened to a transmission housing 46 in a region of the insert tool 14.
  • a drive shaft 16 can be driven via a gear (not shown in more detail), on the end of which facing toward the insert tool 14 a driving device 12 is arranged (FIG. 3).
  • the insert tool 14 (FIG. 5), which has a disk-shaped hub 64, can be Device 12 can be operatively connected to the drive shaft 16.
  • the driving device 12 has a driving flange 48, which is fixedly connected to the drive shaft 16, and a fastening device 18.
  • the fastening device 18 comprises securing elements 28 and plug elements 38.
  • the plug elements 38 directed in the axial direction 24 to the insert tool 14 and a concentrically arranged centering collar 40 are arranged, the centering collar 40 likewise pointing in the axial direction 24 to the insert tool 14.
  • the plug elements 38 formed by pins are arranged in the circumferential direction 20, 22 evenly distributed on the driving flange 48.
  • four through bores 72, which are uniformly distributed in the circumferential direction 20, 22, are introduced, which are arranged offset in the circumferential direction 20, 22 at an angle of 45 ° to the plug elements 38.
  • the through bores 72 are penetrated by the securing elements 28, on the ends of which point towards the insert tool 14 a head 52 is formed in each case.
  • the heads 52 are directed radially outward perpendicular to the axial direction 24, 26.
  • Oblique surfaces 54 are formed on the heads 52 on the sides pointing in the axial direction 26.
  • the securing elements 28 each have a first region 56, which is surrounded by helical compression springs 36, and a second region 58 with external toothing 30 (FIGS. 3 and 4) at their sections pointing in the axial direction 26.
  • the helical compression springs 36 support themselves with their Ren in the axial direction 24 ends on radially inwardly facing frets 62 of the through holes 72 and with their ends pointing in the axial direction 26 on radially outwardly facing frets 60, which are integrally formed on the securing elements 28.
  • the securing elements 28 are in the axial direction 24 against the spring forces of the helical compression springs
  • the external toothings 30 of the second areas 58 of the securing elements 28 engage in a form-fitting manner in a corresponding internal toothing 34 of an adjusting element 32.
  • the adjusting element 32 is designed as a knurled disk and engages around the securing elements 28 (FIGS. 3 and 4).
  • the hub 64 made of sheet metal of the insert tool 14 has a centering hole 70.
  • Recesses 66, 68 are made in the hub 64, the contour of which corresponds to an outer contour of the fastening device 18.
  • the recesses 66 are formed in a radially inner region by four bores which are uniformly distributed in the circumferential direction 20, 22.
  • rectangular recesses 68 are made in the hub 64, which correspond to the securing elements 28.
  • the contours of the recesses 68 each correspond to an outer contour of the heads 52 of the securing elements 28.
  • insert tool 14 is placed on the centering collar
  • the plug-in elements 38 and the securing elements 28 pass through the recesses 66 and 68 of the hub 64 with their heads 52.
  • the insert tool 14 is shown in FIG The circumferential direction 20, 22 is secured via the positive engagement of the recesses 66 with the plug-in elements 38 and the recesses 68 with the securing elements 28, the securing elements 28 being in a release position.
  • the securing elements 28 of the fastening device 18 are moved into a holding position.
  • the actuating element 32 is actuated by an operator in the circumferential direction 20, 22. Due to the positive locking of the internal and external teeth 30, 34, the securing elements 28 can be brought from the release position into the holding position by a pivoting movement in a plane perpendicular to the axial direction 24, 26.
  • the heads 52 of the securing elements 28 slide with their inclined surfaces 54 over the hub 64 of the insert tool 14.
  • the movement of the securing elements 28 in the axial direction 24 counter to the spring force of the spring elements 36 causes the hub 64 to be pressed against the driving flange 48.
  • the insert tool 14 is included Using the securing elements 28 in the axial direction 24, 26 clamped.
  • the actuating element 32 is moved in the circumferential direction 20, 22 until the securing elements 28 have reached their release position.
  • the insert tool 14 can be removed in the axial direction 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

L'invention concerne un raccordement d'outil pour machine-outil (10), notamment une rectifieuse d'angle guidée à la main, qui comporte un dispositif d'entraînement (12) par l'intermédiaire duquel un outil d'insertion (14) comportant un moyeu (64) sous forme de disque peut être raccordé en toute efficacité à un arbre d'entrée (16), ainsi qu'un dispositif de fixation (18) présentant une position de retenue et une position de désolidarisation. Il est prévu que l'outil d'insertion (14) puisse être relié par liaison de forme au dispositif d'entraînement (12), dans le sens périphérique, à l'aide du dispositif de fixation (18) en position de désolidarisation, et également dans le sens axial, lorsque ledit dispositif est en position de retenue.
EP03727200A 2002-06-10 2003-04-11 Raccordement d'outil et outil d'insertion Withdrawn EP1515824A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2002125583 DE10225583A1 (de) 2002-06-10 2002-06-10 Werkzeugaufnahme und Einsatzwerkzeug
DE10225583 2002-06-10
PCT/DE2003/001229 WO2003103900A1 (fr) 2002-06-10 2003-04-11 Raccordement d'outil et outil d'insertion

Publications (1)

Publication Number Publication Date
EP1515824A1 true EP1515824A1 (fr) 2005-03-23

Family

ID=29718907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03727200A Withdrawn EP1515824A1 (fr) 2002-06-10 2003-04-11 Raccordement d'outil et outil d'insertion

Country Status (6)

Country Link
US (1) US7258515B2 (fr)
EP (1) EP1515824A1 (fr)
JP (1) JP2005528990A (fr)
CN (1) CN100420548C (fr)
DE (1) DE10225583A1 (fr)
WO (1) WO2003103900A1 (fr)

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DE10360248A1 (de) 2003-12-20 2005-07-28 Robert Bosch Gmbh Einsatzwerkzeug für einen Winkelschleifer
US8852221B2 (en) 2008-06-11 2014-10-07 Medtronic Ps Medical, Inc. Surgical cutting instrument with near-perimeter interlocking coupling arrangement
US8523868B2 (en) * 2008-06-11 2013-09-03 Medtronic Ps Medical, Inc. Surgical cutting instrument with dual surface interlocking coupling arrangement
US8430725B2 (en) * 2008-12-19 2013-04-30 Jovan Pajovic Abrasive disc construction
US9186770B2 (en) 2010-04-29 2015-11-17 Black & Decker Inc. Oscillating tool attachment feature
US8925931B2 (en) 2010-04-29 2015-01-06 Black & Decker Inc. Oscillating tool
US9073195B2 (en) 2010-04-29 2015-07-07 Black & Decker Inc. Universal accessory for oscillating power tool
EP2598285A4 (fr) * 2010-07-29 2013-12-25 Myles Graham Kelly Mécanisme de blocage de plaque
US9149923B2 (en) 2010-11-09 2015-10-06 Black & Decker Inc. Oscillating tools and accessories
CN102814793B (zh) * 2011-06-09 2015-08-19 苏州宝时得电动工具有限公司 动力工具及应用于该动力工具的工作头和转接器
CN102814790A (zh) * 2011-06-09 2012-12-12 苏州宝时得电动工具有限公司 动力工具及应用于该动力工具的工作头和转接器
USD832666S1 (en) 2012-07-16 2018-11-06 Black & Decker Inc. Oscillating saw blade
USD814900S1 (en) 2017-01-16 2018-04-10 Black & Decker Inc. Blade for oscillating power tools
US10265778B2 (en) 2017-01-16 2019-04-23 Black & Decker Inc. Accessories for oscillating power tools
KR200493410Y1 (ko) * 2020-05-27 2021-03-26 권순철 핸드 그라인더의 커플러 구조

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Also Published As

Publication number Publication date
US7258515B2 (en) 2007-08-21
JP2005528990A (ja) 2005-09-29
CN100420548C (zh) 2008-09-24
US20040258497A1 (en) 2004-12-23
WO2003103900A1 (fr) 2003-12-18
DE10225583A1 (de) 2004-01-08
CN1649696A (zh) 2005-08-03

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