EP1322442A1 - Heat-shrinkable chuck - Google Patents

Heat-shrinkable chuck

Info

Publication number
EP1322442A1
EP1322442A1 EP01978359A EP01978359A EP1322442A1 EP 1322442 A1 EP1322442 A1 EP 1322442A1 EP 01978359 A EP01978359 A EP 01978359A EP 01978359 A EP01978359 A EP 01978359A EP 1322442 A1 EP1322442 A1 EP 1322442A1
Authority
EP
European Patent Office
Prior art keywords
shaft
areas
receptacle
chuck
clamping
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Withdrawn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
EP01978359A
Other languages
German (de)
French (fr)
Inventor
Thomas Retzbach
Ralph Kersten
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.)
Schunk GmbH and Co KG
Fritz Schunk GmbH and Co KG Fabrik fuer Spann und Greifwerkzeuge
Original Assignee
Schunk GmbH and Co KG
Fritz Schunk GmbH and Co KG Fabrik fuer Spann und Greifwerkzeuge
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 Schunk GmbH and Co KG, Fritz Schunk GmbH and Co KG Fabrik fuer Spann und Greifwerkzeuge filed Critical Schunk GmbH and Co KG
Publication of EP1322442A1 publication Critical patent/EP1322442A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
    • B23P11/027—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold for mounting tools in tool holders
    • 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
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • B23B31/1179—Retention by friction only, e.g. using springs, resilient sleeves, tapers using heating and cooling
    • 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
    • Y10T279/17—Socket type
    • Y10T279/17957—Friction grip
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49865—Assembling or joining with prestressing of part by temperature differential [e.g., shrink fit]
    • 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
    • Y10T403/48—Shrunk fit

Definitions

  • the present invention relates to a chuck for clamping tools by shrink fit with a chuck body which can be fixed to the work spindle of a machine tool and in which a central receptacle for the shank of a tool to be clamped is formed.
  • Chucks of this type are known in different embodiments and are used to fix a tool shank such as a drill or milling shank in the work spindle of a corresponding machine tool. They are used in particular to clamp small tools.
  • the conventional chucks for clamping tools by shrink fit usually consist of a chuck body made of metal, which can be attached to the work spindle of the respective machine tool and has a central receptacle for the shank of the tool to be clamped.
  • the diameter of the receptacle is determined so that it is slightly smaller than the diameter of the tool shank.
  • the Futterkorper warmed at least in the area of the receptacle until it has thermally expanded so far that the tool shaft can be inserted into it.
  • the receptacle shrinks again, so that the tool shank is fixed in the receptacle by a press or shrink fit (DE 39 25 641 C2).
  • the object of the invention is therefore to design a chuck of the type mentioned at the outset in such a way that off-effects on the tool shank are at least largely prevented during operation.
  • the central receptacle is non-circular and has along its circumference a plurality of clamping areas spaced apart from one another and lying on a common diameter, over which the shaft is tensioned, and damping areas of larger diameter are formed between the clamping areas.
  • a shaft is thus only fixed in the clamping areas, while the damping areas in between have a larger diameter, so that they only lie loosely on the shaft or even a gap is formed between the receiving wall and the shaft.
  • the inner circumferential contour of the chuck body which forms the receptacle consists of several, in particular three, flat, curved circumferential sections forming the clamping regions and a corresponding number of intermediate arches which form the damping regions.
  • the peripheral contour forming the receptacle can be polygonal or polygon-like with arcuate sections.
  • FIG. 1 in cross section a heat shrink chuck according to the present invention in the untensioned state
  • FIG. 2 shows the heat shrink feeder from Figure 1 with a tool shaft clamped therein.
  • 1 and 2 show an embodiment of a heat shrink chuck for clamping tools by shrink fit according to the present invention.
  • the chuck comprises a chuck body 1 made of a dimensionally stable material - here steel - which has at its one end region a central receptacle 2, into which, after heating and the associated enlargement of the receptacle 2, a cylindrical shaft 3 of a tool such as a drill or Milling cutter can be inserted, and which can be clamped at its other end region in a manner known per se in a rotary driven work spindle of a machine tool.
  • the receptacle 2 is non-circular, and in the exemplary embodiment shown it has a polygon shape with three flatly curved peripheral sections 4 and three transition arches 5 lying between them.
  • the flat, curved peripheral sections 4 form clamping areas over which a shaft 3 inserted into the receptacle 2 is fixed under pressure, ie they lie on a diameter of the receptacle that is slightly smaller than the shaft diameter, while the intermediate arches 5 have a larger one Have diameters and form damping areas in which the receiving wall abuts the shaft 3 only loosely or is spaced from the shaft 3 to form gaps 6.

Landscapes

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

Abstract

The invention relates to a heat-shrinkable chuck for clamping tools by means of shrink-fit. Said heat-shrinkable chuck comprises a chuck body (1), which can be fixed to the work spindle of a machine tool and inside of which a central seat (2) is provided for the shaft (3) of a tool to be clamped. The inventive heat-shrinkable chuck is characterized in that the central seat (2) is non-circular and has, along the periphery thereof, several interspaced clamping areas, which are situated on a common diameter and via which the shaft (3) is clamped. Damping areas (5) of a larger diameter are provided between said claming areas (4).

Description

Beschreibung;Description;
WärmeschrumpffutterHeat shrink chuck
Die vorliegende Erfindung betrifft ein Spannfutter zum Spannen von Werkzeugen durch Schrumpfsitz mit einem an der Arbeitsspindel einer Werkzeugmaschine fixierbaren Futterkorper, in dem eine zentrale Aufnahme für den Schaft eines zu spannenden Werkzeugs ausgebildet ist.The present invention relates to a chuck for clamping tools by shrink fit with a chuck body which can be fixed to the work spindle of a machine tool and in which a central receptacle for the shank of a tool to be clamped is formed.
Spannfutter dieser Art sind in unterschiedlichen Ausführungsformen bekannt und dienen dazu, einen Werkzeugschaft wie beispielsweise einen Bohrer- oder Fräserschaft in der Arbeitsspindel einer entsprechenden Werkzeugmaschine zu fixieren. Sie werden insbesondere eingesetzt, um kleine Werkzeuge zu spannen.Chucks of this type are known in different embodiments and are used to fix a tool shank such as a drill or milling shank in the work spindle of a corresponding machine tool. They are used in particular to clamp small tools.
Die herkömmlichen Spannfutter zum Spannen von Werkzeugen durch Schrumpfsitz bestehen in der Regel aus einem Futterkorper aus Metall, der an der Arbeitsspindel der jeweiligen Werkzeugmaschine angebracht werden kann und eine zentrale Aufnahme für den Schaft des zu spannenden Werkzeugs aufweist. Der Durchmesser der Aufnahme ist dabei so bestimmt, daß er etwas kleiner ist als der Durchmesser des Werkzeugschaftes. Zum Spannen des Werkzeugs wird der Futterkorper zumindest im Bereich der Aufnahme erwärmt, bis sich diese soweit thermisch gedehnt hat, daß der Werkzeugschaft in sie eingesetzt werden kann. Beim anschließenden Abkühlen schrumpft die Aufnahme wieder, so daß der Werkzeugschaft in der Aufnahme durch Preß- oder Schrumpfsitz fixiert wird (DE 39 25 641 C2).The conventional chucks for clamping tools by shrink fit usually consist of a chuck body made of metal, which can be attached to the work spindle of the respective machine tool and has a central receptacle for the shank of the tool to be clamped. The diameter of the receptacle is determined so that it is slightly smaller than the diameter of the tool shank. To clamp the tool, the Futterkorper warmed at least in the area of the receptacle until it has thermally expanded so far that the tool shaft can be inserted into it. During the subsequent cooling, the receptacle shrinks again, so that the tool shank is fixed in the receptacle by a press or shrink fit (DE 39 25 641 C2).
Solche sogenannten Wärmeschrumpffutter haben sich zwar in der Praxis durchaus bewährt. Aufgrund der harten Einspan- nung des Schaftes können im Gebrauch jedoch Abwalkeffek- te, die bis zum Bruch des Vollhartmetallschaftes des Werkzeugs führen können, auftreten.Such so-called heat shrink chucks have proven their worth in practice. Due to the hard clamping of the shank, however, wear effects that can lead to the breakage of the solid carbide shank of the tool can occur during use.
Aufgabe der Erfindung ist es daher, ein Spannfutter der eingangs genannten Art so auszubilden, daß im Betrieb Ab- walkeffekte am Werkzeugschaft zumindest weitgehend verhindert werden.The object of the invention is therefore to design a chuck of the type mentioned at the outset in such a way that off-effects on the tool shank are at least largely prevented during operation.
Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß die zentrale Aufnahme unrund ausgebildet ist und entlang ihres Umfangs mehrere beabstandet voneinander angeordnete und auf einem gemeinsamen Durchmesser liegende Spannbereiche aufweist, über welche der Schaft gespannt wird, und zwischen den Spannbereichen Dämpfungsbereiche größeren Durchmessers ausgebildet sind. Erfindungsgemäß wird ein Schaft somit nur in den Spannbereichen fixiert, während die dazwischen liegenden Dämpfungsbereiche einen größeren Durchmesser haben, so daß sie nur lose an dem Schaft anliegen oder sogar ein Spalt zwischen der Aufnahmewandung und dem Schaft gebildet wird. Durch diese Aus- bildung wird die Einspannung des Werkzeugschaftes „weicher" mit der Folge, daß die im Stand der Technik aufgrund der harten Einspannung des Schaftes auftretenden „Kardaneffekte", die zum Werkzeugbruch führen können, ausgeschlossen bzw. weitgehend verhindert werden.This object is achieved in that the central receptacle is non-circular and has along its circumference a plurality of clamping areas spaced apart from one another and lying on a common diameter, over which the shaft is tensioned, and damping areas of larger diameter are formed between the clamping areas. According to the invention, a shaft is thus only fixed in the clamping areas, while the damping areas in between have a larger diameter, so that they only lie loosely on the shaft or even a gap is formed between the receiving wall and the shaft. Through this Education, the clamping of the tool shank "softer" with the result that the "cardan effects" occurring in the prior art due to the hard clamping of the shaft, which can lead to tool breakage, are excluded or largely prevented.
Gemäß einer Ausführungsform der Erfindung ist vorgesehen, daß die die Aufnahme bildende innere Umfangskontur des Futterkörpers aus mehreren, insbesondere drei die Spannbereiche bildenden flach gewölbten Umfangsabschnitten und einer entsprechenden Anzahl von dazwischen liegenden, die Dämpfungsbereiche bildenden Übergangsbögen besteht. Insbesondere kann die die Aufnahme bildende Umfangskontur vieleckig oder polygonähnlich mit bogenförmigen Abschnitten ausgebildet sein. Diese Ausgestaltungen haben den Vorteil, daß die Umfangskontor einfach hergestellt werden kann.According to one embodiment of the invention, it is provided that the inner circumferential contour of the chuck body which forms the receptacle consists of several, in particular three, flat, curved circumferential sections forming the clamping regions and a corresponding number of intermediate arches which form the damping regions. In particular, the peripheral contour forming the receptacle can be polygonal or polygon-like with arcuate sections. These configurations have the advantage that the peripheral contour can be easily manufactured.
Hinsichtlich weiterer vorteilhafter Ausgestaltungen der Erfindung wird auf die Unteransprüche sowie die nachfolgende Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die beiliegende Zeichnung verwiesen. In der Zeichnung zeigt:With regard to further advantageous refinements of the invention, reference is made to the subclaims and the following description of an exemplary embodiment with reference to the accompanying drawing. The drawing shows:
Figur 1 im Querschnitt ein Wärmeschrumpffutter gemäß der vorliegenden Erfindung im ungespannten Zustand undFigure 1 in cross section a heat shrink chuck according to the present invention in the untensioned state and
Figur 2 das Wärmeschrumpffύtter aus Figur 1 mit einem darin festgespannten Werkzeugschaft. In den Figuren 1 und 2 ist eine Ausführungsform eines Wärmeschrumpffutters zum Spannen von Werkzeugen durch Schrumpfsitz gemäß der vorliegenden Erfindung dargestellt. Das Spannfutter umfaßt einen Futterkorper 1 aus einem formsteifen Material - hier Stahl -, der an seinem einen Endbereich eine zentrale Aufnahme 2 aufweist, in die nach einer Erwärmung und der damit verbundenen Aufweitung der Aufnahme 2 ein zylindrischer Schaft 3 eines Werkzeugs wie beispielsweise eines Bohrers oder Fräsers eingeschoben werden kann, und der an seinem anderen Endbereich in an sich bekannter Weise in eine drehangetriebene Arbeitsspindel einer Werkzeugmaschine einspannbar ist.Figure 2 shows the heat shrink feeder from Figure 1 with a tool shaft clamped therein. 1 and 2 show an embodiment of a heat shrink chuck for clamping tools by shrink fit according to the present invention. The chuck comprises a chuck body 1 made of a dimensionally stable material - here steel - which has at its one end region a central receptacle 2, into which, after heating and the associated enlargement of the receptacle 2, a cylindrical shaft 3 of a tool such as a drill or Milling cutter can be inserted, and which can be clamped at its other end region in a manner known per se in a rotary driven work spindle of a machine tool.
Erfindungsgemäß ist die Aufnahme 2 unrund ausgebildet, wobei sie in dem dargestellten Ausführungsbeispiel eine Polygonform mit drei flach gewölbten Umfangsabschnitten 4 und drei dazwischen liegenden Übergangsbögen 5 besitzt. Die flach gewölbten Umfangsabschnitte 4 bilden dabei Spannbereiche, über die ein in die Aufnahme 2 einen eingesetzter Schaft 3 unter Druckeinwirkung fixiert wird, d.h. die auf einem Durchmesser der Aufnahme liegen, der etwas kleiner als der Schaftdurchmesser ist, während die dazwischen liegenden Übergangsbögen 5 einen größeren Durchmesser besitzen und Dämpfungsbereiche bilden, in denen die Aufnahmewandung an dem Schaft 3 nur lose anliegt oder unter Bildung von Spalten 6 beabstandet von dem Schaft 3 ist. Durch diese Dämpfungsbereiche 5 wird erreicht, daß der Futterkorper 1 im Bereich der Einspann- stelle weicher wird, so daß im Betrieb auftretende Schwingungen gedämpft werden. Hierdurch können Brüche des Werkzeugschaftes 3, die bei herkömmlichen Futtern aufgrund der harten Einspannung und der damit verbundenen Kardaneffekte auftraten, verhindert werden. According to the invention, the receptacle 2 is non-circular, and in the exemplary embodiment shown it has a polygon shape with three flatly curved peripheral sections 4 and three transition arches 5 lying between them. The flat, curved peripheral sections 4 form clamping areas over which a shaft 3 inserted into the receptacle 2 is fixed under pressure, ie they lie on a diameter of the receptacle that is slightly smaller than the shaft diameter, while the intermediate arches 5 have a larger one Have diameters and form damping areas in which the receiving wall abuts the shaft 3 only loosely or is spaced from the shaft 3 to form gaps 6. Through these damping areas 5 it is achieved that the lining body 1 in the area of the clamping place becomes softer, so that vibrations occurring during operation are damped. In this way, breaks in the tool shank 3, which occurred in conventional chucks due to the hard clamping and the associated gimbal effects, can be prevented.

Claims

Ansprüche:Wärmeschrumpffutter Claims: heat shrink fit chuck
1. Wärmeschrumpffutter zum Spannen von Werkzeugen durch Schrumpfsitz mit einem an der Arbeitsspindel einer Werkzeugmaschine fixierbaren Futterkorper ( 1 ) , in dem eine zentrale Aufnahme (2) für den Schaft (3) eines zu spannenden Werkzeugs ausgebildet ist, dadurch gekennzeichnet, daß die zentrale Aufnahme (2) unrund ausgebildet ist und entlang ihres Umfangs mehrere beabstandet voneinander angeordnete und auf einem gemeinsamen Durchmesser liegende Spannbereiche aufweist, über welche der Schaft (3) gespannt wird, und zwischen den Spannbereichen (4) Dämpfungsbereiche (5) größeren Durchmessers ausgebildet sind.1. heat shrink chuck for clamping tools by shrink fit with a fixable on the work spindle of a machine tool chuck body (1) in which a central receptacle (2) for the shaft (3) of a tool to be clamped is formed, characterized in that the central receptacle (2) is non-circular and has along its circumference a plurality of clamping areas spaced apart from one another and lying on a common diameter, over which the shaft (3) is tensioned, and damping areas (5) of larger diameter are formed between the clamping areas (4).
2. Wärmeschrumpffutter nach Anspruch 1, dadurch gekennzeichnet, daß die die Aufnahme (2) bildende innere Umfangskontur aus drei die Spannbereiche (4) bildenden flach gewölbten Umfangsabschnitten und drei dazwischen liegenden und die Dämpfungsbereiche (5) bildenden Übergangsbögen besteht.2. Heat shrink chuck according to claim 1, characterized in that the receptacle (2) forming the inner peripheral contour consists of three the clamping areas (4) forming flat curved peripheral sections and three intermediate and the damping areas (5) forming transition arches.
3. Wärmeschrumpffutter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die die Aufnahme (2) bildende Umfangskontur vieleckig oder polygonähnlich mit bogenförmigen Abschnitten ausgebildet ist. Wärmeschrumpffutter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Aufnahme (2) in den Dämpfungsbereichen (5) einen Durchmesser besitzt, der größer ist als der Durchmesser eines zu spannenden Schafts ( 3 ) , so daß zwischen dem Schaft ( 3 ) und der Aufnahmewandung Spalte (6) gebildet werden. 3. Heat shrink chuck according to claim 1 or 2, characterized in that the circumferential contour forming the receptacle (2) is polygonal or polygon-like with arcuate sections. Heat shrink chuck according to one of the preceding claims, characterized in that the receptacle (2) in the damping areas (5) has a diameter which is larger than the diameter of a shaft (3) to be tensioned, so that between the shaft (3) and the Receiving wall column (6) are formed.
EP01978359A 2000-09-29 2001-09-12 Heat-shrinkable chuck Withdrawn EP1322442A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10048772 2000-09-29
DE10048772A DE10048772C1 (en) 2000-09-29 2000-09-29 Heat shrink chuck
PCT/EP2001/010519 WO2002026429A1 (en) 2000-09-29 2001-09-12 Heat-shrinkable chuck

Publications (1)

Publication Number Publication Date
EP1322442A1 true EP1322442A1 (en) 2003-07-02

Family

ID=7658420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01978359A Withdrawn EP1322442A1 (en) 2000-09-29 2001-09-12 Heat-shrinkable chuck

Country Status (6)

Country Link
US (1) US20020180165A1 (en)
EP (1) EP1322442A1 (en)
JP (1) JP2004509774A (en)
CN (1) CN1392814A (en)
DE (1) DE10048772C1 (en)
WO (1) WO2002026429A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10244759B4 (en) * 2002-09-26 2005-12-08 Bauer, Walter, Dr.-Ing. Chuck for thermal shrinking of shanks
ES2257628T3 (en) * 2003-11-05 2006-08-01 SCHUNK GMBH & CO. KG SPANN- UND GREIFTECHNIK EXPANDABLE HOLDING DEVICE.
DE102005039174B4 (en) * 2005-08-17 2007-08-23 Hermann Leguin Device for processing workpieces
FR2935278B1 (en) * 2008-08-29 2011-12-09 E P B PRECENTERING DEVICE FOR AUTOMATICALLY ASSEMBLING THERMAL EXPANSION OF TOOLS WITH A TOOL HOLDER.
DE102008060374A1 (en) * 2008-08-29 2010-03-04 Franz Haimer Maschinenbau Kg damping sleeve
DE102011113494A1 (en) * 2011-09-15 2013-03-21 Haimer Gmbh Clamping system and basic body, collet and rotary tool for this and an installation procedure for the rotary tool in the clamping system
DE102013202657A1 (en) 2012-12-20 2014-07-10 Mahle International Gmbh Method for thermal joining of non-circular functional components on a shaft

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925641C3 (en) * 1989-02-04 2000-12-07 Marquart Ingeborg Method and device for clamping and releasing tools
DE19521755C1 (en) * 1995-06-14 1996-10-02 Schunk Fritz Gmbh System repeatedly connecting two components
DE19638822A1 (en) * 1996-09-20 1998-03-26 Fx Marquart Gmbh Clamping device for attaching a tool to a machine tool and device for clamping tools in a shrink fit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0226429A1 *

Also Published As

Publication number Publication date
JP2004509774A (en) 2004-04-02
US20020180165A1 (en) 2002-12-05
DE10048772C1 (en) 2002-05-29
WO2002026429A1 (en) 2002-04-04
CN1392814A (en) 2003-01-22

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