WO2003103897A2 - Outil d'insertion muni d'une unite de fixation - Google Patents

Outil d'insertion muni d'une unite de fixation Download PDF

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Publication number
WO2003103897A2
WO2003103897A2 PCT/DE2003/001230 DE0301230W WO03103897A2 WO 2003103897 A2 WO2003103897 A2 WO 2003103897A2 DE 0301230 W DE0301230 W DE 0301230W WO 03103897 A2 WO03103897 A2 WO 03103897A2
Authority
WO
WIPO (PCT)
Prior art keywords
insert tool
fastening unit
tool according
locking
driving
Prior art date
Application number
PCT/DE2003/001230
Other languages
German (de)
English (en)
Other versions
WO2003103897A3 (fr
Inventor
Albrecht Hofmann
Original Assignee
Robert Bosch Gmbh
Tyrolit Schleifmittelwerke Swarovski K.G.
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 Robert Bosch Gmbh, Tyrolit Schleifmittelwerke Swarovski K.G. filed Critical Robert Bosch Gmbh
Priority to EP03724866A priority Critical patent/EP1513651B1/fr
Priority to CN03803584.7A priority patent/CN1630571B/zh
Publication of WO2003103897A2 publication Critical patent/WO2003103897A2/fr
Publication of WO2003103897A3 publication Critical patent/WO2003103897A3/fr

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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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
    • 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

Definitions

  • the invention relates to an insert tool with a fastening unit according to the preamble of claim 1.
  • a tool holder for a hand-held angle grinder and an insert tool with a hub are known.
  • the tool holder has a driving device, via which the hub or the fastening unit of the insert tool can be operatively connected to a drive shaft.
  • the hub of the insert tool can be operatively connected to the driving device via latching elements of the driving device which can be moved against a spring element.
  • Recesses are made in the hub, into which the latching elements engage in a form-fitting manner in an operating position of the insert tool and fix the insert tool.
  • the invention is based on an insert tool with a fastening unit for a machine tool, in particular for a hand-held angle grinder, with a driving device.
  • the fastening unit has at least one latching element for fixing that points towards the driving device.
  • a fastening unit for mounting the insert tool in the machine tool can be reached, in which parts that can be lost, in particular a clamping flange, a clamping nut, etc., can advantageously be avoided.
  • Correct assembly of the insert tool in particular in the case of insert tools which are tied in the direction of rotation, is ensured by the latching elements pointing towards the driving device.
  • the locking elements facing the driving device result in an intuitively correct assembly of the insert tool in a correct working position.
  • safety for an operator can be increased by only mounting tools that have been approved by the manufacturer. A so-called closed system can be reached.
  • the fastening unit and the locking element can be made in one piece or in several parts. If the fastening unit and the locking element are made in several parts, the locking element and the fastening unit can be made of different materials. The different materials can be adapted to special requirements or to different loads, such as shear, pressure and / or tension. load designed and dimensioned accordingly. However, the latching element is particularly advantageously formed in one piece with the fastening unit. A fastening unit can be reached that is simple in design and inexpensive to manufacture. Additional components, costs and assembly time can be avoided.
  • the latching element and the fastening unit can be produced from a complete unit in one work step and the latching element can be brought into its shape. Manufacturing steps, such as, in particular, cutting free and bending the locking element, can be reduced and production costs can be reduced.
  • the locking element can also be produced by other methods that the person skilled in the art considers useful, such as by laser cutting, sawing, etc.
  • the locking element is elastically deformable.
  • a structurally simple fixation of the fastening unit in the axial and / or in the circumferential direction can be achieved. Additional spring elements can be saved and costs can be reduced.
  • the latching element is designed in the form of a tab.
  • the latching element is structurally simple, elastic and easy to shape.
  • a first part extending approximately in the axial direction can be used Driving and / or for securing in a first circumferential direction can be used.
  • a second part, essentially perpendicular to the first part, can be used advantageously for securing in the axial direction and a third part, which extends approximately in the axial direction, can be used advantageously for securing in a second circumferential direction.
  • a torque can advantageously be transmitted via a single detent element, the insert tool secured in the axial direction, and a sequence lock for the insert tool when the machine tool is switched off.
  • Components, in particular components for securing the process, can be saved and costs can be reduced.
  • the latching element forms a tapering area tapering in the working direction.
  • the fastening unit of the insert tool can advantageously be pressed against the tapering receiving region during operation, and a play-free securing of the fastening unit in the axial direction can be achieved via a large contact surface.
  • the fastening unit have a centering opening.
  • the insert tool can advantageously be centered on a centering collar of the driving device, and low-vibration operation of the insert tool can be achieved. If a corresponding latching element on the tool holder can be moved against a spring element, an advantageous positive connection with a large overlap and a secure securing of the insert tool in the circumferential direction can be achieved. Furthermore, when the insertion tool is placed and rotated on a tool holder, the locking element of the insertion tool and the corresponding locking means can snap into one another with clearly audible acoustic feedback, and the operator can be informed of a correct fixation of the insertion tool.
  • Fig. 1 is an angle grinder from above and Fig. 2 is an exploded view of a tool holder and an insert tool. Description of the embodiment
  • FIG. 1 shows an angle grinder 12 from above with an electric motor, not shown, which is mounted in a housing 44.
  • the angle grinder 12 can be guided via a first handle 46, which extends in the longitudinal direction and is integrated in the housing 44 on the side facing away from an insert tool, and via a second handle 50 which is attached to a gear housing 48 in the region of the insert tool and extends transversely to the longitudinal direction.
  • a drive shaft 52 can be driven via a gear (not shown in more detail), at the end of which facing the insert tool a driving device 14 is arranged (FIG. 2).
  • the driving device 14 has a driving flange 54 firmly pressed onto the drive shaft 52 on a side facing the insert tool and a locking disk 56 mounted on the drive shaft 52 on a side facing away from the insert tool.
  • the locking disk 56 is centered in the axial direction 22 facing away from the insert tool arranged spring element 42 formed by a helical spring.
  • the locking disk 56 has on its side facing the insert tool three locking elements 40 evenly distributed in the circumferential direction 26, 28, each of which is formed by a groove, and has a contour corresponding to the driving flange 54 for positive rotational driving in the direction of rotation 30. Furthermore, three axial bores 92, 94, 96, which are uniformly distributed in the circumferential direction 26, 28, are introduced into the locking disk 56 in a radially inner region.
  • the driving flange 54 of the driving device 14 has three driving elements 64, 66, 68 pointing radially outwards, which are arranged uniformly distributed in the circumferential direction 26, 28 (FIG. 2).
  • three axial through bores 78, 80, 82 are made in the radially inner region, which are arranged uniformly distributed in the circumferential direction 26, 28.
  • An unlocking button 70 engages in the assembled state with its pins 58, 60, 62 pointing in the axial direction 22 through the axial through bores 78, 80, 82 of the driving flange 54 (FIG. 2).
  • the ends of the pins 58, 60, 62 engage in the axial bores 92, 94, 96 of the locking disk 56 and snap into them in a captive manner with hooks (not shown).
  • the insert tool has a fastening unit 10 formed by a sheet metal hub with a closed centering opening 38 (FIG. 2).
  • the outer circumference of the fastening unit 10 is firmly connected to an abrasive 84.
  • the fastening unit 10 In its operating position, the fastening unit 10 has three tab-shaped latching elements 16, 18, 20 for fixing in the axial direction 22 to the driving device 14.
  • the elastically deformable locking elements 16, 18, 20 are arranged uniformly distributed in the circumferential direction 26, 28 and are formed in one piece with the fastening unit 10 by a punching process.
  • a first part which extends approximately in the axial direction 22, is rotated in a first circumferential direction 26, a second part adjoining the first part at an obtuse angle Securing in the axial direction 22, 24 and a third, approximately extending in the axial direction 22 part for securing in a second circumferential direction 28 is reached.
  • the locking elements 16, 18, 20 form in the direction of rotation 30 tapering receiving areas 32, 34, 36 for the driving elements 64, 66, 68 of the driving flange 54.
  • the insert tool is pushed with its centering opening 38 onto a centering collar (not shown in more detail) and centered over the closed centering opening 38.
  • the latching elements 16, 18, 20 pass through free spaces 86, 88, 90 between the driving elements 66, 68, 70 of the driving flange 54.
  • Rotating the insert tool in the circumferential direction 28 or counter to the direction of rotation 30 causes the receiving areas 32, 34 , 36 of the locking elements 16, 18, 20 come into operative connection with the tapering driving areas 72, 74, 76 of the driving elements 64, 66, 68.
  • the locking disk 56 is here by pushing the locking elements 16, 18, 20 against the tapering driving areas 72, 74, 76 of the driving flange 54, which act as ramps, by the locking elements 16, 18, 20 against the spring force of the spring element 42 in the axial direction 22 postponed.
  • the locking disk 56 is driven by the spring force of the spring elements 42, moved in the axial direction 24 against the driving flange 54 and the latching elements 16, 18, 20 engage positively with an audible click in the corresponding latching elements 40 of the latching disk 56.
  • the insert tool or the fastening unit 10 is fixed in a rotationally fixed manner on the drive shaft 52 in both circumferential directions 26, 28.
  • the positive engagement of the locking elements 16, 18, 20 with the respective locking elements 40 of the locking disc 56 prevents the insert tool from running out due to the inertia when switching off.
  • a play-free, secure hold of the fastening unit 10 in the axial direction 22, 24 is ensured by the driving areas 72, 74, 76 of the driving elements 64, 66, 68 which taper in the direction of rotation 30.
  • the latching elements 16, 18, 20 thus simultaneously secure the fastening unit 10 of the insert tool in an axial and circumferential direction 22, 24, 26, 28.
  • the release button 70 axially in the direction 22 of the driving flange 54.
  • the detent disk 56 is axially displaced in the direction 22 facing away from the insert element 42 against the spring force of the spring element.
  • the locking elements 16, 18, 20 of the insert tool are guided out of the locking elements 40 of the locking disc 56 and released.
  • the insert tool can then be rotated in the direction of rotation 30, and the driving elements 64, 66, 68 of the driving flange 54 come with their driving areas 72, 74, 76 out of engagement with the receiving areas 32, 34, 36 of the locking elements 16, 18, 20.
  • the insert tool or the fastening unit 10 can be in the axial direction 24 from the Driving device 14 are withdrawn. After releasing the release button 70, it slides back into its original position.

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)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

L'invention concerne un outil d'insertion muni d'une unité de fixation (10) pour machine-outil (12), notamment pour une rectifieuse d'angle guidée à la main, qui comporte un dispositif d'entraînement (14). Il est prévu, que dans une position de fonctionnement, l'unité de fixation (10) présente au moins un élément d'arrêt (16, 18, 20) orienté en direction du dispositif d'entraînement (14), pour assurer la fixation.
PCT/DE2003/001230 2002-06-06 2003-04-11 Outil d'insertion muni d'une unite de fixation WO2003103897A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03724866A EP1513651B1 (fr) 2002-06-06 2003-04-11 Outil d'insertion muni d'une unite de fixation
CN03803584.7A CN1630571B (zh) 2002-06-06 2003-04-11 具有一个固定单元的插接式刀具

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002125051 DE10225051A1 (de) 2002-06-06 2002-06-06 Einsatzwerkzeug mit einer Befestigungseinheit
DE10225051.0 2002-06-06

Publications (2)

Publication Number Publication Date
WO2003103897A2 true WO2003103897A2 (fr) 2003-12-18
WO2003103897A3 WO2003103897A3 (fr) 2004-02-05

Family

ID=29718866

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/001230 WO2003103897A2 (fr) 2002-06-06 2003-04-11 Outil d'insertion muni d'une unite de fixation

Country Status (4)

Country Link
EP (1) EP1513651B1 (fr)
CN (1) CN1630571B (fr)
DE (1) DE10225051A1 (fr)
WO (1) WO2003103897A2 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006021969A1 (de) * 2006-05-04 2007-11-08 C. & E. Fein Gmbh Oszillationsantrieb
EP2119534A1 (fr) * 2008-05-13 2009-11-18 AEG Electric Tools GmbH Capot protecteur pour un outil électrique, notamment une meuleuse d'angle et outil électrique doté d'un tel capot protecteur
WO2018036920A1 (fr) * 2016-08-22 2018-03-01 Robert Bosch Gmbh Dispositif de serrage rapide pour une machine-outil portative, en particulier pour une meuleuse d'angle
CN111136581A (zh) * 2018-11-05 2020-05-12 韩建英 一种快速装卸专用切割片
CN111546159A (zh) * 2020-06-08 2020-08-18 上海高仙自动化科技发展有限公司 抛光头组件及石材抛光机器人
CN111660193A (zh) * 2020-06-08 2020-09-15 苏州高之仙自动化科技有限公司 抛光头组件及石材抛光机器人
US10828742B2 (en) 2016-08-22 2020-11-10 Robert Bosch Gmbh Quick tensioning device for a portable machine tool, in particular for an angle grinding machine
WO2023153705A1 (fr) * 2022-02-08 2023-08-17 최윤석 Dispositif de retenue de disque de meuleuse

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7343841B2 (en) 2002-02-15 2008-03-18 Black & Decker Inc. Blade clamp assembly
CN101342677B (zh) * 2007-07-11 2011-08-03 苏州宝时得电动工具有限公司 手持式动力工具
DE102010013102A1 (de) * 2010-03-29 2011-09-29 Robert Bosch Gmbh Ablaufsicherungsvorrichtung
JP5712290B2 (ja) * 2010-07-29 2015-05-07 グラハム ケリー，マイルズ 板係止機構
DE102013208691A1 (de) 2013-05-13 2014-11-13 Robert Bosch Gmbh Werkzeugspannvorrichtung
CN110087831A (zh) * 2016-12-16 2019-08-02 迈尔科技有限公司 旋转装置
CN111421411B (zh) * 2020-06-08 2020-10-16 上海高仙自动化科技发展有限公司 清洁头及智能清洁机器人
DE102022203295A1 (de) 2022-04-01 2023-10-05 Janser Gmbh Werkzeugverbindungseinrichtung für eine Bearbeitungsmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347673A (en) 1992-10-01 1994-09-20 Black & Decker Inc. Quick change pad assembly for orbital polisher
DE10017458A1 (de) 2000-04-07 2001-10-18 Bosch Gmbh Robert Schleifmaschinenwerkzeugaufnahme

Family Cites Families (7)

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US1830362A (en) * 1930-01-15 1931-11-03 Automatic Floor Waxing Machine Brush attachment for floor treating machines
US2561279A (en) * 1945-07-27 1951-07-17 William E Holt Floor maintenance machine
US2518279A (en) * 1947-06-30 1950-08-08 Albert F Bruder Drive connection for a shoe polisher
US2541526A (en) * 1950-05-19 1951-02-13 Hendrik W Lundquist Clutch for floor conditioning machines
US3266206A (en) * 1962-07-03 1966-08-16 Allied Chem Insulated built up roof and insulation therefor
US3266200A (en) * 1964-06-04 1966-08-16 Merit Products Inc Abrasive device
FR2063429A5 (fr) * 1969-10-14 1971-07-09 Cybeo Aldigero

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347673A (en) 1992-10-01 1994-09-20 Black & Decker Inc. Quick change pad assembly for orbital polisher
DE10017458A1 (de) 2000-04-07 2001-10-18 Bosch Gmbh Robert Schleifmaschinenwerkzeugaufnahme

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006021969A1 (de) * 2006-05-04 2007-11-08 C. & E. Fein Gmbh Oszillationsantrieb
US7997586B2 (en) 2006-05-04 2011-08-16 C. & E. Fein Gmbh Oscillatory drive
EP2119534A1 (fr) * 2008-05-13 2009-11-18 AEG Electric Tools GmbH Capot protecteur pour un outil électrique, notamment une meuleuse d'angle et outil électrique doté d'un tel capot protecteur
WO2018036920A1 (fr) * 2016-08-22 2018-03-01 Robert Bosch Gmbh Dispositif de serrage rapide pour une machine-outil portative, en particulier pour une meuleuse d'angle
US10828742B2 (en) 2016-08-22 2020-11-10 Robert Bosch Gmbh Quick tensioning device for a portable machine tool, in particular for an angle grinding machine
CN111136581A (zh) * 2018-11-05 2020-05-12 韩建英 一种快速装卸专用切割片
CN111546159A (zh) * 2020-06-08 2020-08-18 上海高仙自动化科技发展有限公司 抛光头组件及石材抛光机器人
CN111660193A (zh) * 2020-06-08 2020-09-15 苏州高之仙自动化科技有限公司 抛光头组件及石材抛光机器人
WO2023153705A1 (fr) * 2022-02-08 2023-08-17 최윤석 Dispositif de retenue de disque de meuleuse

Also Published As

Publication number Publication date
WO2003103897A3 (fr) 2004-02-05
CN1630571A (zh) 2005-06-22
CN1630571B (zh) 2011-01-26
EP1513651B1 (fr) 2013-01-09
EP1513651A2 (fr) 2005-03-16
DE10225051A1 (de) 2004-01-08

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