EP1513651B1 - Einsatzwerkzeug mit einer befestigungseinheit - Google Patents

Einsatzwerkzeug mit einer befestigungseinheit Download PDF

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Publication number
EP1513651B1
EP1513651B1 EP03724866A EP03724866A EP1513651B1 EP 1513651 B1 EP1513651 B1 EP 1513651B1 EP 03724866 A EP03724866 A EP 03724866A EP 03724866 A EP03724866 A EP 03724866A EP 1513651 B1 EP1513651 B1 EP 1513651B1
Authority
EP
European Patent Office
Prior art keywords
driving
latching element
application tool
latching
fastening unit
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
EP03724866A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1513651A2 (de
Inventor
Albrecht Hofmann
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 EP1513651A2 publication Critical patent/EP1513651A2/de
Application granted granted Critical
Publication of EP1513651B1 publication Critical patent/EP1513651B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.
  • the tool holder for a hand-held angle grinder and an insert tool with a hub 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 is operatively connected via latching elements of the driving device, which are movable against a spring element, with the driving device.
  • latching elements of the driving device which are movable against a spring element, with the driving device.
  • the hub recesses are introduced, in which engage the locking elements in an operating position of the insert tool form fit and fix the insert tool.
  • the insertion tool comprises a fastening unit formed by a plate, which in an operating position has at least one latching element facing the driving device for fixing the insertion tool.
  • the tool holder has a driving device.
  • the entrainment device has a driving flange, which comprises entrainment elements.
  • the invention relates to an insert tool with a fastening unit, which is formed by a sheet metal hub, for a machine tool with a driving device, in particular for a handheld angle grinder with a driving device, wherein the fastening unit has at least one latching element for fixing in an operating position, wherein with the locking element, a positive securing the fastening unit in the axial direction and in the circumferential direction is reached.
  • the latching element is configured S-shaped, wherein the latching element has a first, extending approximately in the axial direction part for rotational drive and / or securing in a first circumferential direction, a subsequent to the first part of the second part to secure has in the axial direction and a third, extending approximately in the axial direction extending part for securing in a second circumferential direction. It is achievable a mounting unit for mounting the insert tool in the machine tool, can be advantageously avoided in the loss of parts, in particular a clamping flange, a clamping nut, etc., A correct installation of the insert tool, in particular in direction of rotation-bound insert tools, is ensured by the latching elements pointing to the driving device.
  • the detent elements facing the driving device cause an intuitively correct assembly of the insert tool in a correct working position.
  • the safety for an operator be increased by only use tools can be mounted, which have been approved by the manufacturer. It is a so-called closed system accessible. Due to the S-shaped configuration of the latching element, a first part extending approximately in the axial direction can be used for rotational drive and / or for securing in a first circumferential direction. A second part which adjoins the first part substantially perpendicularly can be used for securing in the axial direction and a third part extending approximately in the axial direction can advantageously be used for securing in a second circumferential direction.
  • 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 designed in several parts, the locking element and the fastening unit can be made of different materials. The different materials can be adapted to specific requirements or to different loads, such as a shear, compression and / or tensile load be designed and dimensioned accordingly.
  • the locking element is particularly advantageously formed in one piece with the fastening unit. It is a mounting unit accessible, which can be easily designed and manufactured inexpensively. Additional tree parts, costs and assembly time can be avoided.
  • the latching element is formed by a punching operation on the fastening unit, the latching element and the fastening unit can be made in one operation from an entire unit and the locking element can be brought into its shape. Manufacturing steps, such as in particular free cutting and bending of the locking element can be reduced and production costs can be reduced.
  • the latching element can also be made by other methods which the person skilled in the art would find useful, e.g. by laser cutting, sawing etc.
  • the latching element is elastically deformable. It is a structurally simple fixation of the attachment unit in the axial and / or circumferentially reachable. Additional spring elements can be saved and costs can be reduced.
  • the locking element is formed tab-shaped.
  • the locking element is structurally simple elastic executable and easy to shape.
  • the latching element forms a tapering in the working direction receiving area.
  • the attachment unit of the insert tool can be pressed during operation against the tapered receiving area, and it is accessible over a large contact surface a backlash-free backup of the attachment unit in the axial direction.
  • the fastening unit has a centering opening.
  • the insert tool can be advantageously centered on a centering collar of the entrainment device, and low-vibration operation of the insertion tool can be achieved.
  • Fig. 1 shows an angle grinder 12 from above with a mounted in a housing 44, not shown electric motor.
  • the angle grinding machine 12 can be guided via a first, in the housing 44 on the side facing away from an insert tool, extending in the longitudinal direction of the handle 46 and a second attached to a transmission housing 48 in the field of the insert tool, extending transversely to the longitudinal direction handle 50.
  • a drive shaft 52 can be driven via a transmission, not shown in more detail, at whose end facing the application tool a driving device 14 is arranged ( Fig. 2 ).
  • the entrainment device 14 has on a side facing the insertion tool on the drive shaft 52 firmly pressed driving flange 54 and on a side facing away from the application tool on the drive shaft 52 mounted detent disk 56.
  • the detent disk 56 is in the remote from the insert tool axial direction 22 against a center arranged, formed by a coil spring spring element 42 slidably.
  • the locking disk 56 has on its side facing the insert tool three circumferentially 26, 28 evenly spaced locking elements 40, which are each formed by a groove, and has for a positive rotational drive in the direction of rotation 30 to the driving flange 54 corresponding contour. Furthermore, in the locking disk 56 in a radially inner region three in the circumferential direction 26, 28 evenly distributed axial bores 92, 94, 96 are introduced.
  • the driving flange 54 of the driving device 14 has three radially outwardly pointing driving elements 64, 66, 68, which are arranged distributed uniformly in the circumferential direction 26, 28 ( Fig. 2 ).
  • the entraining elements 64, 66, 68, with their sides pointing in the direction of rotation 30, have a driving area 72, 74, 76 which tapers in the direction of rotation 30.
  • three axial through holes 78, 80, 82 are introduced in the radially inner region, which are arranged distributed uniformly in the circumferential direction 26, 28.
  • An unlocking button 70 engages in the assembled state with its pointing in the axial direction 22 pins 58, 60, 62, the axial through holes 78, 80, 82 of the driving flange 54 (FIG. Fig. 2 ).
  • the pins 58, 60, 62 engage with their ends in the axial bores 92, 94, 96 of the locking disc 56 and latch with not shown hooks captive in this one.
  • the insert tool has a fastening unit 10 formed by a sheet metal hub with a closed centering opening 38 (FIG. Fig. 2 ).
  • the fixing unit 10 is fixedly connected to an abrasive 84 at its outer periphery.
  • the fastening unit 10 In its operating position, the fastening unit 10 has three in the axial direction 22 to the driving device 14 facing, lug-shaped locking elements 16, 18, 20 for fixing.
  • the elastically deformable locking elements 16, 18, 20 are distributed uniformly in the circumferential direction 26, 28 and are formed integrally with the fastening unit 10 by a punching process.
  • an S-shaped configuration of the latching elements 16, 18, 20 is in each case a first, approximately in the axial direction 22 extending part for rotational drive in a first circumferential direction 26, an adjoining at an obtuse angle to the first part second part for securing in axial direction 22, 24 and a third, approximately in the axial direction 22 extending part for securing in a second circumferential direction 28 is reached.
  • the locking elements 16, 18, 20 form in the direction of rotation 30 tapered receiving portions 32, 34, 36 for the driving elements 64, 66, 68 of the driving flange 54th
  • the insert tool For assembly, the insert tool is pushed with its centering opening 38 on a centering collar, not shown, and centered on the closed centering 38.
  • the latching elements 16, 18, 20 reach through clearances 86, 88, 90 between the driving elements 66, 68, 70 of the driving flange 54.
  • Rotation of 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 latching elements 16, 18, 20 come into operative connection with the tapered driving regions 72, 74, 76 of the driving elements 64, 66, 68.
  • the locking disc 56 is in this case by sliding the locking elements 16, 18, 20 against the tapered, acting as ramps driving portions 72, 74, 76 of the driving flange 54 by the locking elements 16, 18, 20 against the spring force of the spring element 42 in the axial direction 22nd postponed.
  • the locking disk 56 is driven by the spring force of the spring element 42, moved in the axial direction 24 against the driving flange 54 and the locking elements 16, 18, 20 engage positively with an audible click in the corresponding locking elements 40 of the locking disc 56 a.
  • the insert tool or the fastening unit 10 is fixed against rotation on the drive shaft 52 in both circumferential directions 26, 28.
  • an operator presses the unlocking button 70 axially in the direction 22 of the driving flange 54.
  • the locking disk 56 is displaced axially against the spring force of the spring element 42 in the direction away from the inserting tool 22.
  • 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 with the receiving areas 32, 34, 36 of the locking elements 16, 18, 20 disengaged.
  • the insert tool or the fastening unit 10 can in the axial direction 24 of the Drive device 14 are deducted. After releasing the release button 70 slides this back to 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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
EP03724866A 2002-06-06 2003-04-11 Einsatzwerkzeug mit einer befestigungseinheit Expired - Lifetime EP1513651B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10225051 2002-06-06
DE2002125051 DE10225051A1 (de) 2002-06-06 2002-06-06 Einsatzwerkzeug mit einer Befestigungseinheit
PCT/DE2003/001230 WO2003103897A2 (de) 2002-06-06 2003-04-11 Einsatzwerkzeug mit einer befestigungseinheit

Publications (2)

Publication Number Publication Date
EP1513651A2 EP1513651A2 (de) 2005-03-16
EP1513651B1 true EP1513651B1 (de) 2013-01-09

Family

ID=29718866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03724866A Expired - Lifetime EP1513651B1 (de) 2002-06-06 2003-04-11 Einsatzwerkzeug mit einer befestigungseinheit

Country Status (4)

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

Families Citing this family (16)

* 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
DE102006021969A1 (de) * 2006-05-04 2007-11-08 C. & E. Fein Gmbh Oszillationsantrieb
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
DE102008023324A1 (de) * 2008-05-13 2009-11-19 Aeg Electric Tools Gmbh Schutzhaube für ein Elektrowerkzeug, insbesondere einen Winkelschleifer sowie Elektrowerkzeug mit einer derartigen Schutzhaube
DE102010013102A1 (de) * 2010-03-29 2011-09-29 Robert Bosch Gmbh Ablaufsicherungsvorrichtung
EP2598285A4 (en) * 2010-07-29 2013-12-25 Myles Graham Kelly PLATE BLOCKING MECHANISM
DE102013208691A1 (de) * 2013-05-13 2014-11-13 Robert Bosch Gmbh Werkzeugspannvorrichtung
RU2736767C2 (ru) 2016-08-22 2020-11-19 Роберт Бош Гмбх Быстрозажимное устройство для переносной технологической машины, в частности для угловой шлифовальной машины
WO2018036920A1 (de) * 2016-08-22 2018-03-01 Robert Bosch Gmbh Schnellspannvorrichtung für eine tragbare werkzeugmaschine, insbesondere für eine winkelschleifmaschine
JP6625245B2 (ja) * 2016-12-16 2019-12-25 ミレェテック カンパニー リミテッドＭｉｒｅｔｅｃ Ｃｏ．， Ｌｔｄ． 回転装置
CN111136581A (zh) * 2018-11-05 2020-05-12 韩建英 一种快速装卸专用切割片
CN111660193B (zh) * 2020-06-08 2021-08-10 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
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
CN111546159B (zh) * 2020-06-08 2021-06-25 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
KR102636796B1 (ko) * 2022-02-08 2024-02-14 최윤석 그라인더 디스크 고정장치
DE102022203295A1 (de) 2022-04-01 2023-10-05 Janser Gmbh Werkzeugverbindungseinrichtung für eine Bearbeitungsmaschine

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
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 (zh) * 1969-10-14 1971-07-09 Cybeo Aldigero
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

Also Published As

Publication number Publication date
CN1630571B (zh) 2011-01-26
EP1513651A2 (de) 2005-03-16
CN1630571A (zh) 2005-06-22
DE10225051A1 (de) 2004-01-08
WO2003103897A3 (de) 2004-02-05
WO2003103897A2 (de) 2003-12-18

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