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EP1955818A3 - Machine tool with spindle lock - Google Patents

Machine tool with spindle lock Download PDF

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Publication number
EP1955818A3
EP1955818A3 EP07023909A EP07023909A EP1955818A3 EP 1955818 A3 EP1955818 A3 EP 1955818A3 EP 07023909 A EP07023909 A EP 07023909A EP 07023909 A EP07023909 A EP 07023909A EP 1955818 A3 EP1955818 A3 EP 1955818A3
Authority
EP
European Patent Office
Prior art keywords
spindle
clamping elements
drive element
driving
machine tool
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
EP07023909A
Other languages
German (de)
French (fr)
Other versions
EP1955818A2 (en
EP1955818B1 (en
Inventor
Boris Richt
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.)
C&E Fein GmbH and Co
Original Assignee
C&E Fein GmbH and Co
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 C&E Fein GmbH and Co filed Critical C&E Fein GmbH and Co
Publication of EP1955818A2 publication Critical patent/EP1955818A2/en
Publication of EP1955818A3 publication Critical patent/EP1955818A3/en
Application granted granted Critical
Publication of EP1955818B1 publication Critical patent/EP1955818B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

Es wird eine Werkzeugmaschine, insbesondere eine Bohrmaschine oder Schrauber angegeben, mit einer Spindel (22) zum Antrieb eines Werkzeugs (36), mit einem von einem Motor (14) antreibbaren Antriebselement (18), das mit der Spindel (22) über eine Spindelarretierung (23) koppelbar ist, mit einem die Spindel (22) antreibenden Abtriebselement (20), das über eine Mehrzahl von Klemmelementen, die zwischen Mitnehmern am Antriebselement (18) und Nockenelementen am Abtriebselement (20) mit Spiel beweglich gehalten sind, vom Antriebselement (18) antreibbar ist. Die Klemmelemente sind axial zwischen dem Antriebselement (18) und einer Anlaufscheibe (33) auf der Spindel (22) gehalten und durch Federelemente an der Anlaufscheibe (33) beim Antrieb der Spindel (22) in einer Arbeitsrichtung zumindest teilweise entgegen der Arbeitsrichtung vorgespannt. Ferner sind den Klemmelementen am Abtriebselement (20) jeweils Führungskurven zugeordnet, die bei Arretierung der Spindel (22) durch Klemmwirkung jeweils eine Endstellung der Klemmelemente definieren, wodurch ein maximal übertragbares Reibungselement festgelegt ist (Fig.1)

Figure imgaf001
The invention relates to a machine tool, in particular a drill or screwdriver, with a spindle (22) for driving a tool (36) with a drive element (18) which can be driven by a motor (14) and which is connected to the spindle (22) via a spindle lock (23) can be coupled to the spindle (22) driving output element (20), which are held by a plurality of clamping elements which are movably supported between drivers on the drive element (18) and cam elements on the output element (20), from the drive element ( 18) is drivable. The clamping elements are held axially between the drive element (18) and a thrust washer (33) on the spindle (22) and biased by spring elements on the thrust washer (33) when driving the spindle (22) in one working direction at least partially against the working direction. Furthermore, the clamping elements on the driven element (20) are each associated with guide curves which, when the spindle (22) is locked, define in each case an end position of the clamping elements, whereby a maximum transferable friction element is determined (FIG.
Figure imgaf001
EP20070023909 2007-02-09 2007-12-11 Machine tool with spindle lock Active EP1955818B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007007734A DE102007007734A1 (en) 2007-02-09 2007-02-09 Machine tool with spindle lock

Publications (3)

Publication Number Publication Date
EP1955818A2 EP1955818A2 (en) 2008-08-13
EP1955818A3 true EP1955818A3 (en) 2009-09-16
EP1955818B1 EP1955818B1 (en) 2012-01-18

Family

ID=39310349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070023909 Active EP1955818B1 (en) 2007-02-09 2007-12-11 Machine tool with spindle lock

Country Status (2)

Country Link
EP (1) EP1955818B1 (en)
DE (1) DE102007007734A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009027643A1 (en) * 2008-10-14 2010-04-15 Robert Bosch Gmbh Hand machine tool device
DE102009005248A1 (en) 2009-01-13 2010-07-15 C. & E. Fein Gmbh Power tool with switchable gearbox
DE102009013108A1 (en) * 2009-03-13 2010-09-16 Metabowerke Gmbh Electric motor driven screwing or drilling tool
DE102012205609A1 (en) 2012-04-04 2013-10-10 Metabowerke Gmbh Electric hand tool with spindle stop
DE102012018240A1 (en) 2012-09-17 2014-03-20 Lothar Strach Two-gear screw driller, particularly battery-screw driller, has two circular gear teeth arranged one after another for single- and sum circuit without friction, where gear speed is generated by sliding block
CN103659703B (en) * 2012-09-19 2016-06-08 黄仁虎 A kind of trigger
DE102012219498A1 (en) * 2012-10-25 2014-04-30 Robert Bosch Gmbh Hand machine tool device
CN104985572A (en) * 2015-06-17 2015-10-21 浙江亚特电器有限公司 Self-locking device for electric tool and rotating shaft
CN109531505A (en) * 2018-12-27 2019-03-29 常熟市研拓自动化科技有限公司 A kind of the turn of the screw mechanism
CN115229738A (en) * 2021-04-23 2022-10-25 南京泉峰科技有限公司 Torque output tool
EP4417372A1 (en) * 2023-02-15 2024-08-21 Hilti Aktiengesellschaft Machine tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29715257U1 (en) * 1997-08-26 1997-12-04 Atlas Copco Electric Tools GmbH, 71364 Winnenden Driving device
DE102004018025A1 (en) * 2004-04-14 2005-11-10 Metabowerke Gmbh Power drill or screwdriver, comprising locking device activated when torque is transmitted from drill bit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3115937B2 (en) * 1992-04-23 2000-12-11 松下電工株式会社 Screw tightening tool
DE19608499C2 (en) * 1996-03-05 2000-05-25 Regitar Power Tools Co Automatic locking device for automatically locking the output shaft of an electric hand tool
JP2002337062A (en) * 2001-03-14 2002-11-26 Daijiro Nakamura Rotation output device
DE102004052124B3 (en) * 2004-10-27 2006-04-27 Metabowerke Gmbh Tool e.g. hand tool which can be driven by motor, has axially adjustable spindle shaft of gear arrangement which is movable axially with respect to spindle shaft and self actuating spindle locking mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29715257U1 (en) * 1997-08-26 1997-12-04 Atlas Copco Electric Tools GmbH, 71364 Winnenden Driving device
DE102004018025A1 (en) * 2004-04-14 2005-11-10 Metabowerke Gmbh Power drill or screwdriver, comprising locking device activated when torque is transmitted from drill bit

Also Published As

Publication number Publication date
DE102007007734A1 (en) 2008-08-14
EP1955818A2 (en) 2008-08-13
EP1955818B1 (en) 2012-01-18

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