EP0481220B1 - Spannfutter - Google Patents

Spannfutter Download PDF

Info

Publication number
EP0481220B1
EP0481220B1 EP91115623A EP91115623A EP0481220B1 EP 0481220 B1 EP0481220 B1 EP 0481220B1 EP 91115623 A EP91115623 A EP 91115623A EP 91115623 A EP91115623 A EP 91115623A EP 0481220 B1 EP0481220 B1 EP 0481220B1
Authority
EP
European Patent Office
Prior art keywords
clamping chuck
clamping
locking element
chuck
chuck according
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
EP91115623A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0481220A3 (en
EP0481220A2 (de
Inventor
Peter Baumgärtner
Karl Wieland
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0481220A2 publication Critical patent/EP0481220A2/de
Publication of EP0481220A3 publication Critical patent/EP0481220A3/de
Application granted granted Critical
Publication of EP0481220B1 publication Critical patent/EP0481220B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • 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
    • Y10T279/16—Longitudinal screw clamp
    • 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
    • Y10T279/17111—Fluid-conduit drill holding
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30952—Milling with cutter holder

Definitions

  • the invention relates to a chuck according to the preamble of claim 1 and is primarily intended for use with tools that have at least one so-called driving surface or recess on their cylindrical shank according to the corresponding standard.
  • collet chucks previously known for this tool group or the so-called sleeve chucks with a clamping screw acting radially on the tool shank are relative to the head part or free end of the diameter there due to the arrangement of the radial clamping elements kept thick, so that in many cases it is difficult or impossible to get to the points to be machined on the respective workpiece.
  • the object of the present invention is therefore also to create a new type of chuck for commercially available tools of the type in question, which can be kept at its free end comprising the tool shank, as long as desired and extremely small in diameter.
  • the chuck front part itself is free of radially acting clamping elements and thus only needs to be so strong in its diameter or wall thickness that there is sufficient material strength to accommodate the workers acting on the tool.
  • cutting tools 1 such as milling cutters, drills, countersinks and the like.
  • recessed driving surface 1b with inclined stop collars 1c or the like lying in the axial direction is, as already mentioned above, distinguished from the known prior art above all by its general structure from the fact that the clamping force "P" acting on the tool shaft 1a extends in the axial direction and is transmitted by a locking member 2 or 2a between the tool shaft 1a and the chuck front part 3a, thereby producing axially and radially acting clamping forces.
  • the chuck is therefore in the form of an elongated sleeve 3, 3a with a central longitudinal bore 1d, clamping screw 4 inserted at one end therein and in the chuck front part 3a channel 3b accessible from the outside for inserting the locking member 2 or 2a.
  • the channel 3b receiving the locking member 2 or 2a in the chuck front part 3a runs obliquely from its outer surface in the direction of the free, slightly tapered end 3c of the front part 3a and in accordance with the design of the Locking member as a ball 2, polygon 2a or the like. Is also correspondingly profiled in its cross section.
  • the training as an angular part in the possibly angular channel is particularly advantageous for larger tools and at higher working pressures; A corresponding part 2a can be seen from FIG. 2, the parallel contact of the rear side 2a 'on the stop collar 1c of the driving surface 1b being particularly advantageous for the angular locking member 2a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Milling Processes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Vehicle Body Suspensions (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
EP91115623A 1990-10-15 1991-09-14 Spannfutter Expired - Lifetime EP0481220B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4032694 1990-10-15
DE4032694A DE4032694C2 (de) 1990-10-15 1990-10-15 Spannfutter

Publications (3)

Publication Number Publication Date
EP0481220A2 EP0481220A2 (de) 1992-04-22
EP0481220A3 EP0481220A3 (en) 1992-07-15
EP0481220B1 true EP0481220B1 (de) 1995-01-11

Family

ID=6416327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115623A Expired - Lifetime EP0481220B1 (de) 1990-10-15 1991-09-14 Spannfutter

Country Status (7)

Country Link
US (1) US5152541A (sv)
EP (1) EP0481220B1 (sv)
JP (1) JPH04261704A (sv)
AT (1) ATE116885T1 (sv)
DE (3) DE4032694C2 (sv)
DK (1) DK0481220T3 (sv)
ES (1) ES2069157T3 (sv)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512556A1 (de) * 1995-04-04 1996-10-10 Peter Baumgaertner Klemmhalter für Gewindebohrer
US6382890B1 (en) * 1999-09-01 2002-05-07 Novator Ab Hand tool apparatus for orbital drilling
US6200073B1 (en) * 1999-10-18 2001-03-13 Henry Chung Combination chamfering and milling tool
DE10003772A1 (de) * 2000-01-28 2001-08-09 Bosch Gmbh Robert Vorrichtung zum Abdichten eines Raums
US6347914B1 (en) * 2000-03-09 2002-02-19 Black & Decker Inc. Rotary tool holder
DE20312067U1 (de) 2003-08-05 2003-10-09 Baumgärtner, Peter, 73072 Donzdorf Spannfutter
DE102004021082A1 (de) * 2004-04-29 2005-11-17 Bilz Werkzeugfabrik Gmbh & Co. Kg Schnellwechseleinsatz für Werkzeuge, insbesondere für Gewindebohrer
DE102006062973C5 (de) 2006-04-10 2020-03-05 Franz Haimer Maschinenbau Kg System aus Werkzeughalter mit einer zylindrischen Werkzeugaufnahme in Form eines Spannzangenfutters und Werkzeug
DE202011109498U1 (de) 2011-12-27 2012-02-13 Franz Haimer Maschinenbau Kg Werkzeughalter und Spannsystem mit einem derartigen Werkzeughalter
IN2012CH04699A (sv) * 2012-11-09 2015-06-19 Kumar Mada Vijay
US8672592B2 (en) * 2012-05-16 2014-03-18 Iscar, Ltd. Milling collet having pull-out preventer for retaining a fluted milling tool
EP2857127B1 (de) 2013-10-02 2016-03-16 Eugen Fahrion GmbH & Co. KG Werkzeughalter mit einer mit einem Werkzeug verspannbaren Spannzange
DE102018133474A1 (de) * 2018-12-21 2020-06-25 Albrecht Präzision GmbH & Co. KG Spannzange und Spannzangenfutter

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1779059A (en) * 1930-10-21 Tool holdeb fob metal-wobxing machines
US1455480A (en) * 1920-05-12 1923-05-15 U S Ball Bearing Mfg Company Holder for reamers
US1457994A (en) * 1922-09-11 1923-06-05 Ivan T Nedland Chuck
US1897228A (en) * 1931-10-23 1933-02-14 Hess Bright Mfg Co Chuck and centering arbor
US2470218A (en) * 1945-02-24 1949-05-17 N R Mcnamara Toolholder
DE846950C (de) * 1950-01-03 1952-09-15 Collet & Engelhard Einrichtung zum Befestigen oder Loesen der Verbindung zwischen einer Arbeitsspindel und einem Werkzeugschaft
BE505445A (sv) * 1950-08-28
US2667357A (en) * 1952-09-05 1954-01-26 Rudolf W Andreasson Toolholder
US2714515A (en) * 1953-06-29 1955-08-02 William J Faso Extension chuck for twist drills
US3195909A (en) * 1963-06-06 1965-07-20 Erickson Tool Co Collet chuck and the like
US3202433A (en) * 1964-02-24 1965-08-24 Davis Arthur George Adapter with adjustment for setting cutters
US3618962A (en) * 1970-02-17 1971-11-09 Warner Swasey Co Collet chuck
DE2234389C3 (de) * 1972-07-13 1979-11-15 Bernhard 3011 Garbsen Rau Werkzeughalter für nicht umlaufende Schneidwerkzeuge an Drehmaschinen
US4076443A (en) * 1977-01-07 1978-02-28 William Halpern Cutting tool assembly
DE7712631U1 (de) * 1977-04-21 1977-08-25 Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge Gmbh, 7067 Pluederhausen Hohles spannfutter zur aufnahme eines spannstueckes
DE2809569A1 (de) * 1978-03-06 1979-09-20 Chris Eggers Jensen Werkzeuganordnung
US4571132A (en) * 1982-06-17 1986-02-18 Bunge Lothar P Collet assembly
CH680989A5 (sv) * 1983-09-30 1992-12-31 Dornag
DE3630126A1 (de) * 1985-09-09 1987-03-12 St Etienne Mach Outil Bohrgeraet
US4971491A (en) * 1985-10-15 1990-11-20 Cook Harold D Tool holder system and method of use
US4899644A (en) * 1986-04-18 1990-02-13 Thermwood Corporation Fluid cylinder assembly for robot actuators
EP0262214A1 (en) * 1986-04-18 1988-04-06 Thermwood Corporation Fluid cylinder assembly for robot actuators
DE3725229C1 (de) * 1987-07-30 1988-12-01 Werner S Kempf Fa Spannvorrichtung fuer spanende Werkzeuge wie Gewindebohrer,Fraeser od.dgl.,insbesondere Vollhartmetall-Werkzeuge
DE3817951A1 (de) * 1988-05-27 1989-11-30 Bahmueller Masch W Spannsystem fuer rundlaufende werkzeuge
US4896892A (en) * 1988-12-30 1990-01-30 Andrews Edward A Tool holder bushing
FR2644089A1 (fr) * 1989-03-10 1990-09-14 Ligonnet Rene Outil de fraisage
DE3911058C1 (en) * 1989-04-06 1990-09-27 Emuge-Werk Richard Glimpel Fabrik Fuer Praezisionswerkzeuge Vormals Moschkau & Glimpel, 8560 Lauf, De Device for connecting a mounting body for a tool to a machine part

Also Published As

Publication number Publication date
DE4032694A1 (de) 1992-04-16
EP0481220A3 (en) 1992-07-15
EP0481220A2 (de) 1992-04-22
ATE116885T1 (de) 1995-01-15
DE9103580U1 (de) 1991-06-27
ES2069157T3 (es) 1995-05-01
DK0481220T3 (da) 1995-06-06
JPH04261704A (ja) 1992-09-17
US5152541A (en) 1992-10-06
DE59104230D1 (de) 1995-02-23
DE4032694C2 (de) 1993-11-04

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