EP1534454A1 - Dispositif de serrage pour arbre creux - Google Patents

Dispositif de serrage pour arbre creux

Info

Publication number
EP1534454A1
EP1534454A1 EP03794797A EP03794797A EP1534454A1 EP 1534454 A1 EP1534454 A1 EP 1534454A1 EP 03794797 A EP03794797 A EP 03794797A EP 03794797 A EP03794797 A EP 03794797A EP 1534454 A1 EP1534454 A1 EP 1534454A1
Authority
EP
European Patent Office
Prior art keywords
clamping
hollow shaft
holding
clamping device
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.)
Withdrawn
Application number
EP03794797A
Other languages
German (de)
English (en)
Inventor
Eugen Hangleiter
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.)
Roehm GmbH Darmstadt
Original Assignee
Roehm GmbH Darmstadt
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 Roehm GmbH Darmstadt filed Critical Roehm GmbH Darmstadt
Publication of EP1534454A1 publication Critical patent/EP1534454A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/26—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
    • B23B31/261—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank
    • B23B31/265—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank by means of collets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/20—Collet chucks
    • B23B2231/201—Operating surfaces of collets, i.e. the surface of the collet acted on by the operating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/20—Collet chucks
    • B23B2231/2027—Gripping surfaces, i.e. the surface contacting the tool or workpiece
    • B23B2231/2043—Discontinuous, interrupted or split
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/20—Collet chucks
    • B23B2231/2089—Slits of collets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
    • B23B2270/12—Centering of two components relative to one another
    • 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
    • Y10T279/29—More than one set of gripping means
    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • Y10T408/953—Clamping jaws
    • 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
    • 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
    • Y10T409/309464—Cutter spindle or spindle support with cutter holder and draw bar

Definitions

  • the invention relates to a clamping device on a machine tool, for a hollow shaft on a hollow shaft taper, tool, workpiece or the like
  • Work spindle guided clamping head can be actuated and come to bear on the clamping bevels with correspondingly inclined inclined surfaces for clamping, furthermore with holding pliers assigned to the working spindle, on which, parallel to the clamping claws, resilient holding tongues are formed which are inclined in the radial direction and which are inclined corresponding to the clamping bevels Have holding surfaces that the bevels attached to the machine tool Apply hollow shaft.
  • Such clamping devices are known for example from DE 299 22 642 UI, which offer the advantage that, due to the holding pliers, the hollow shaft is secured in position early on during loading by the loading device, even without the full clamping force having already been applied. The loading device can therefore be released early, so that the clamping process is shortened. There is also a time advantage when releasing the clamping. Despite the good properties of this clamping device in operation, it has proven to be desirable if after the hollow shaft has been released it can be gripped better and faster by the loading device.
  • the invention is therefore based on the object of designing a clamping device of the type mentioned in such a way that the position of the hollow shaft in the clamping device is better defined before the full clamping force is applied and after it has been released.
  • each of the holding tongues, seen from the work spindle, axially in front of its holding surface on the radially outer surface has a centering surface which comes to rest on the free end of the hollow shaft.
  • This design has the advantage that when the hollow shaft is inserted into the work spindle, it is additionally aligned via the centering surfaces, which means a larger one for the clamping movement of the clamping claws Catch area created and thus an even safer workflow is achieved.
  • the hollow shaft remains aligned in the ejected state over the centering surface, so that the loading device can fix and clamp the hollow shaft better in the gripper groove.
  • the centering surface is designed as a centering and clamping surface via the frictional effect of its surface.
  • the centering and clamping surface When loosening the clamping, there is the advantage that the centering and clamping surface generates friction, so that a larger initial impulse can be exerted on the hollow shaft during the ejection stroke without the holding pliers having to intercept and hold the hollow shaft exclusively via its holding surfaces.
  • the holding tongues are prestressed radially outward.
  • a recess is formed between the centering surface and the holding surface, which facilitates centering if there is a slight misorientation of the hollow shaft when inserted by the loading device into the work spindle.
  • Fig. 3 shows a longitudinal section through the holding pliers shown in isolation
  • FIG. 4 shows a perspective view of the holding pliers according to FIG. 3.
  • FIG. 1 shows the end of a clamping device 1 assigned to a machine tool that is essential for explaining the invention, the basic structure of which is known per se and is disclosed in DE 41 38 974 AI and therefore does not need to be explained in detail here.
  • a clamping head 3 is arranged which is connected to a pull rod 4 which is adjustable in the axial direction of the work spindle 5, so that the clamping head 3 moves from the release position shown in FIG can be adjusted clamping position shown in Figure 1.
  • clamping claws 6 of the clamping device 1 engage in inclined surfaces 13 with clamping bevels 7 formed in the hollow shaft 2, so as to clamp the hollow shaft.
  • the clamping device furthermore has a holding tongs 8 which is assigned to the work spindle 5 and which has holding tongues 9 which extend in the radial direction and extend parallel to the clamping claws 6 have correspondingly inclined holding surfaces 10 to the bevels 7, which abut and hold the bevels 7 of the hollow shaft 2 attached to the machine tool, even before the full clamping force has been applied or after the clamping force has been released again, by changing the hollow shaft 2 to enable by a loading device.
  • Each of the holding tongues 9 has, seen from the work spindle 5, axially in front of its holding surface 10 on the radially outer surface a centering surface 11 which comes into contact with the free end of the hollow shaft 2 and which acts as a centering and clamping surface due to its frictional action.
  • a recess 12 is formed between the centering surface 11 and the holding surface 10; the holding tongues 9 are biased radially outwards.
  • clamping device 1 by means of which it is centered and held immediately after insertion by the holding pliers 8, the holding effect being generated on the one hand by the holding surfaces 10, and on the other hand frictionally by the centering and clamping surfaces 11.
  • the clamping head 3 is transferred from the position shown in FIG. 1 below to the position shown in FIG. 1 above, in which the clamping claws 6 bear against the bevels 7 and hold the hollow shaft 2 with high clamping force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

L'invention concerne un dispositif de serrage monté sur une machine-outil, destiné à un arbre creux (2) qui présente, dans sa cavité, des rampes de serrage (7). Le dispositif de serrage comprend des griffes de serrage (6) qui sont montés dans l'arbre moteur (5) de la machine-outil, peuvent être actionnées par une tête de serrage pouvant se déplacer axialement, guidée dans l'arbre moteur (5) et viennent s'appuyer contre les rampes de serrage (7) par des faces inclinées (13) dont l'inclinaison correspond, pour effectuer le serrage. Le dispositif de serrage (1) comprend une pince de maintien (8) associée à l'arbre moteur (5), sur laquelle sont formées des languettes de maintien (9) qui s'étendent parallèlement aux griffes de serrage (6) et font ressort dans le sens radial. Ces languettes de maintien présentent des faces de maintien (10) dont l'inclinaison correspond à celle des rampes de serrage (7) de l'arbre creux (2) monté sur la machine-outil et reposent contre ces rampes de serrage (7). Chacune des languettes de maintien (9), vu depuis l'arbre moteur (5), présente, dans le sens axial, devant sa face de maintien (10), sur la surface située radialement à l'extérieur, une face de centrage (11) qui vient reposer contre l'extrémité libre de l'arbre creux (2).
EP03794797A 2002-09-07 2003-08-22 Dispositif de serrage pour arbre creux Withdrawn EP1534454A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10241613A DE10241613A1 (de) 2002-09-07 2002-09-07 Spannvorrichtung für einen Hohlschaft
DE10241613 2002-09-07
PCT/DE2003/002830 WO2004024380A1 (fr) 2002-09-07 2003-08-22 Dispositif de serrage pour arbre creux

Publications (1)

Publication Number Publication Date
EP1534454A1 true EP1534454A1 (fr) 2005-06-01

Family

ID=31724527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03794797A Withdrawn EP1534454A1 (fr) 2002-09-07 2003-08-22 Dispositif de serrage pour arbre creux

Country Status (5)

Country Link
US (1) US7165921B2 (fr)
EP (1) EP1534454A1 (fr)
JP (1) JP4335807B2 (fr)
DE (1) DE10241613A1 (fr)
WO (1) WO2004024380A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10338610B4 (de) * 2003-08-22 2015-05-07 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Schnittstelle
DE102004029043A1 (de) * 2004-06-14 2006-01-05 Chiron-Werke Gmbh & Co Kg Werkzeugmaschine und Verfahren zum Wechsel von Werkzeugen an dieser Werkzeugmaschine
US20080012246A1 (en) * 2006-06-26 2008-01-17 Urban Manufacturing Inc. Collet tool holder having adjustable axis
DE602006009128D1 (de) * 2006-12-29 2009-10-22 Vigel Spa Überwachungsverfahren und Vorrichtung für eine Werkzeughaltespindel
DE102008022826A1 (de) * 2008-05-07 2009-11-12 Röhm Gmbh Spannkopf
JP5272935B2 (ja) * 2009-07-09 2013-08-28 村田機械株式会社 カップリング装置
CN103722340B (zh) * 2013-11-27 2016-05-18 江苏锐成机械有限公司 摩擦焊机无油轴承套筒防滑夹紧装置
CN103769928A (zh) * 2014-02-28 2014-05-07 泉州利达机器有限公司 一种新型油缸夹紧装置
CN104259987A (zh) * 2014-09-12 2015-01-07 濮阳贝英数控机械设备有限公司 弹性夹具装置及夹装方法
CN104551740A (zh) * 2015-01-23 2015-04-29 沈马狮 一种夹具
USD861054S1 (en) * 2015-11-20 2019-09-24 Downhole Technology, Llc Fingered backup ring
CN111113113B (zh) * 2020-02-18 2024-08-06 东莞市百方建航机械配件有限公司 数控车床内撑或外夹用八爪夹具机构

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427322A (en) * 1942-11-30 1947-09-09 Republic Steel Corp Collet construction for bar turning machines
SE368917B (fr) * 1969-03-24 1974-07-29 Bofors Ab
DE8816782U1 (de) * 1987-05-11 1990-06-21 Gühring oHG, 72458 Albstadt Kupplungsvorrichtung zwischen einem Werkstück- oder Werkzeugträgerteil und einer dafür vorgesehenen Handhabungseinrichtung
DE4138974A1 (de) 1991-11-27 1993-06-03 Berg & Co Gmbh Spanntechnik Spannvorrichtung fuer ein mit einem hohlschaft versehenes werkzeug, werkstueck oder maschinenteil
DE19543178A1 (de) * 1995-11-20 1997-05-22 Weh Verbindungstechnik Spannzangenvorrichtung
JP3785544B2 (ja) * 1996-02-01 2006-06-14 株式会社ニイガタマシンテクノ 工作機械の主軸装置
JPH10277862A (ja) * 1997-04-03 1998-10-20 Sodick Co Ltd 工作機械の工具保持具及び工具保持装置
JPH1110418A (ja) * 1997-06-19 1999-01-19 Hiromitsu Toyomoto 保持工具
DE29922642U1 (de) * 1999-12-24 2000-02-24 Röhm GmbH, 89567 Sontheim Spannvorrichtung für einen Hohlschaft
US6436021B2 (en) * 2000-06-23 2002-08-20 Nippei Toyama Corporation Method and apparatus for supplying lubricant
DE10059209A1 (de) * 2000-11-29 2002-06-13 Roehm Gmbh Spannvorrichtung für einen Hohlschaft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004024380A1 *

Also Published As

Publication number Publication date
WO2004024380A1 (fr) 2004-03-25
JP4335807B2 (ja) 2009-09-30
US20060002778A1 (en) 2006-01-05
US7165921B2 (en) 2007-01-23
JP2005537942A (ja) 2005-12-15
DE10241613A1 (de) 2004-03-18

Similar Documents

Publication Publication Date Title
EP1118407B1 (fr) Dispositif de serrage pour un arbre creux
DE4205259C2 (de) Einrichtung zum Werkzeugwechsel an einer handgeführten Werkzeugmaschine
DE69714781T2 (de) Hydromechanisches futter
DE69313227T2 (de) Vorrichtung zum Halten von Werkzeugen
WO2004024380A1 (fr) Dispositif de serrage pour arbre creux
DE19636701B4 (de) Vorrichtung zum Einspannen von Gegenständen für die Spindel einer Werkzeugmaschine
DE4105039B4 (de) Zugstangenmechanismus
DE3418615C2 (de) Werkzeughalteeinrichtung
EP3181275B1 (fr) Dispositif de changement rapide pour un outil
EP3165310B1 (fr) Dispositif de serrage
DE859555C (de) Spannfutter
CH671719A5 (fr)
AT400803B (de) Spannvorrichtung für ein dentales werkzeug
DE102018100965B4 (de) Spannvorrichtung zum Einspannen eines stangenförmigen Werkstücks in einem Lademagazin, mit welchem das Werkstück einer Werkzeugmaschine zum Bearbeiten des Werkstücks zuführbar ist, sowie Lademagazin, umfassend eine derartige Spannvorrichtung
DE3402635A1 (de) Spannvorrichtung zum einspannen von werkzeugen
EP3484659B1 (fr) Dispositif de serrage
EP2233086A1 (fr) Dispositif pour extraire les tiques
DE1260395B (de) Bolzensetzgeraet
DE102006009201B4 (de) Verfahren zum Auswechseln eines Spannkopfs und eines Werkstückanschlags sowie Spannkopf und Werkstückanschlag zur Durchführung des Verfahrens
EP1122032B1 (fr) Mandrin de serrage pour des extrémités de tiges d'outils, en particulier pour lames de tournevis
EP0065110B1 (fr) Outil pour poser des rivets borgnes
DE102018002323A1 (de) Abziehvorrichtung zum Abziehen eines Werkstücks aus einer Montageposition
DE2934016C2 (de) Schnellspannvorrichtung
EP1426130B1 (fr) Unité de déclenchement
DE102006036527B3 (de) Vorrichtung zum Spannen von Teilen, insbesondere von zu schleifenden Werkstücken

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050302

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: EVONIK ROEHM GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROEHM GMBH

17Q First examination report despatched

Effective date: 20080827

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100302