EP1778428A1 - Aufstecker für fräswerkzeug - Google Patents

Aufstecker für fräswerkzeug

Info

Publication number
EP1778428A1
EP1778428A1 EP05793053A EP05793053A EP1778428A1 EP 1778428 A1 EP1778428 A1 EP 1778428A1 EP 05793053 A EP05793053 A EP 05793053A EP 05793053 A EP05793053 A EP 05793053A EP 1778428 A1 EP1778428 A1 EP 1778428A1
Authority
EP
European Patent Office
Prior art keywords
hub
milling
chamber
cutter
opening
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Withdrawn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
EP05793053A
Other languages
English (en)
French (fr)
Inventor
Hopfner
Alain Freyermuth
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.)
E P B
Original Assignee
E P B
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 E P B filed Critical E P B
Publication of EP1778428A1 publication Critical patent/EP1778428A1/de
Withdrawn legal-status Critical Current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
    • B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
    • B23B31/305—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck the gripping means is a deformable sleeve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/26—Securing milling cutters to the driving spindle
    • 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
    • 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
    • B23B31/1175—Retention by friction only, e.g. using springs, resilient sleeves, tapers using elastomer rings or sleeves
    • B23B31/1176—Retention by friction only, e.g. using springs, resilient sleeves, tapers using elastomer rings or sleeves using fluid-pressure means to actuate the gripping means
    • 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
    • B23B31/40—Expansion mandrels
    • 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
    • B23B31/40—Expansion mandrels
    • B23B31/4006—Gripping the work or tool by a split sleeve
    • B23B31/402—Gripping the work or tool by a split sleeve using fluid-pressure means to actuate the gripping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/26—Securing milling cutters to the driving spindle
    • B23C5/265—Securing milling cutters to the driving spindle by fluid pressure 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/10—Expanding
    • Y10T279/1021—Fluid-pressure actuator
    • 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
    • Y10T409/308624—Milling with limit means to aid in positioning of cutter bit or work [e.g., gauge, stop, etc.]

Definitions

  • the present invention relates to the field of accessories for machine tools, numerical control, machining centers, cells and flexible workshops and relates to a hydro-expandable milling chuck.
  • the milling tools or milling cutters used on the aforementioned machines are generally in the form of substantially cylindrical elements mounted by means of a bore on a hub of a tool holder and clamped on the latter by means of a screw .
  • the milling mandrel according to the invention consisting of a mounting body on a tool holder and provided with a hub for fixing a milling body, is characterized in that the fixing hub a strawberry body is hydro-expandable.
  • FIG. a side elevational view and partially in section of a milling mandrel according to the invention provided with a milling cutter
  • FIG. 2 is a front elevational view of the mandrel alone
  • FIG. 3 is a sectional view along AA of FIG. 2.
  • FIGS. 1 to 3 of the accompanying drawings represent, by way of example, a milling mandrel consisting of a mounting body 1 on a tool holder and provided with of a hub 2 for fixing a milling body 3.
  • the hub 2 for fixing a mill body 3 is hydro-expandable.
  • the hub 2 has an outer sleeve 4 provided with an annular chamber 4 'with a thin outer wall, this chamber being connected to a means 5 for pressurizing, passing through the body 1.
  • the fluid under pressure is advantageously oil and the supply of this oil under pressure in the annular chamber 4 'of the sleeve 4 has the effect, under the effect of the high pressure of the oil injected into said chamber 4' to cause elastic deformation its outer wall which is thus pressed against the wall of the central bore of the cutter 3.
  • the outer sleeve 4 is an insert attached to the hub 2 by shrinking, soldering or other and the means 5 is advantageously connected to the annular chamber 4 'by means of a bore disposed, in known manner, in the hub 2 and opening through the wall thereof in the annular chamber 4'.
  • the hub 2 of the milling cutter body 1 is advantageously provided, in addition, with longitudinal bores 8 extending parallel to its axis.
  • lubrication channels provided in the body of the cutter 3 to open near the cutting plates 3 'of the latter, these longitudinal channels 8 opening to their other end in a chamber 9 connected to an axial conduit 10 for supplying lubricating liquids.
  • the chamber 9 may, for example, correspond to an obviously made in the body 1 close to the end of the screw 7 for clamping the cutter 3 when the latter is fully tightened. Thanks to the invention, it is possible to make a milling mandrel to obtain a perfect centering of the tool, so that its adjustment can also be performed perfectly and reproducibly without specific adaptation to each tool.
  • the provision of lubrication channels at the periphery of the hub 2 makes it possible to ensure that the front portion of the tool is properly supplied with lubricating fluid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Gripping On Spindles (AREA)
  • Milling Processes (AREA)
  • Jigs For Machine Tools (AREA)
  • Drilling Tools (AREA)
EP05793053A 2004-08-09 2005-07-28 Aufstecker für fräswerkzeug Withdrawn EP1778428A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0408756A FR2873944B1 (fr) 2004-08-09 2004-08-09 Mandrin porte-fraise
PCT/FR2005/001982 WO2006024757A1 (fr) 2004-08-09 2005-07-28 Mandrin porte-fraise

Publications (1)

Publication Number Publication Date
EP1778428A1 true EP1778428A1 (de) 2007-05-02

Family

ID=34948257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05793053A Withdrawn EP1778428A1 (de) 2004-08-09 2005-07-28 Aufstecker für fräswerkzeug

Country Status (8)

Country Link
US (1) US20080185792A1 (de)
EP (1) EP1778428A1 (de)
JP (1) JP2008509014A (de)
KR (1) KR20070061520A (de)
CN (1) CN100540193C (de)
CA (1) CA2576885A1 (de)
FR (1) FR2873944B1 (de)
WO (1) WO2006024757A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005844B4 (de) * 2010-01-26 2011-11-03 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Dehnspanneinrichtung
WO2014023778A1 (de) * 2012-08-09 2014-02-13 Franz Haimer Maschinenbau Kg Zentriervorrichtung
JP5725111B2 (ja) * 2013-09-13 2015-05-27 三菱マテリアル株式会社 切削工具
CN105014437B (zh) * 2015-08-09 2018-02-09 宿迁天成锋精机股份有限公司 一种定心夹紧装置
RU2697909C1 (ru) * 2017-11-20 2019-08-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный аграрный университет имени В.Я. Горина" Приспособление для установки дисковых рабочих органов при упрочнении
US20200001374A1 (en) * 2018-06-29 2020-01-02 Herramientas Preziss, S.L. Cutting Insert Applicable To Machining Tools And The Tool Bearing It
RU2725934C1 (ru) * 2019-10-14 2020-07-07 Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" Способ закрепления детали на станке и устройство для его осуществления
US11298757B2 (en) * 2020-05-15 2022-04-12 Shin-Yain Industrial Co., Ltd. Firmly assembled cutter holding assembly
CN111570882A (zh) * 2020-05-29 2020-08-25 大连理工大学 一种大直径刀具自定心装夹结构
CN114888653B (zh) * 2022-05-13 2023-04-18 杭州职业技术学院 一种新能源汽车的轮毂定位装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5197720A (en) * 1989-03-23 1993-03-30 Daimler-Benz Ag Clamping tool for non-positive and high-precision clamping of workpieces

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626811A (en) * 1949-10-01 1953-01-27 Woodworth Co N A Expansion arbor
DE1215022B (de) * 1959-09-11 1966-04-21 Thielenhaus Maschf Kontrolleinrichtung an einer Rundschleifmaschine
US3130978A (en) * 1961-07-31 1964-04-28 Ingersoll Milling Machine Co Expansible mandrel
US4195792A (en) * 1978-12-11 1980-04-01 Hall Melvin D Expandable mandrels
SE418467B (sv) * 1979-10-19 1981-06-09 Eminentverktyg Ab Fastspaenningsanordning foer verktyg eller arbetsstycken
US4407199A (en) * 1980-10-06 1983-10-04 Mosstype Corporation Mandrel assembly for demountable printing cylinders of different lengths
US4422653A (en) * 1982-04-16 1983-12-27 Sheffer Collet Company Chuck for tubular workpieces
DE3716986A1 (de) * 1987-05-21 1988-12-15 Emitec Emissionstechnologie Vorrichtung zum hydraulischen aufweiten

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5197720A (en) * 1989-03-23 1993-03-30 Daimler-Benz Ag Clamping tool for non-positive and high-precision clamping of workpieces

Also Published As

Publication number Publication date
KR20070061520A (ko) 2007-06-13
CN101076422A (zh) 2007-11-21
WO2006024757A1 (fr) 2006-03-09
CN100540193C (zh) 2009-09-16
CA2576885A1 (fr) 2006-03-09
US20080185792A1 (en) 2008-08-07
FR2873944A1 (fr) 2006-02-10
WO2006024757A8 (fr) 2007-04-26
FR2873944B1 (fr) 2006-10-06
JP2008509014A (ja) 2008-03-27

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Inventor name: FREYERMUTH, ALAIN

Inventor name: HOPFNER, SEBASTIEN

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Inventor name: FREYERMUTH, ALAIN

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