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FR2734744B1 - CONTINUOUSLY COMPRESSED AIR BEARING SPINDLE FOR DRILLING MACHINES, PRECISION MACHINE TOOLS OR THE LIKE - Google Patents

CONTINUOUSLY COMPRESSED AIR BEARING SPINDLE FOR DRILLING MACHINES, PRECISION MACHINE TOOLS OR THE LIKE

Info

Publication number
FR2734744B1
FR2734744B1 FR9606654A FR9606654A FR2734744B1 FR 2734744 B1 FR2734744 B1 FR 2734744B1 FR 9606654 A FR9606654 A FR 9606654A FR 9606654 A FR9606654 A FR 9606654A FR 2734744 B1 FR2734744 B1 FR 2734744B1
Authority
FR
France
Prior art keywords
compressed air
air bearing
machine tools
drilling machines
precision machine
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 - Fee Related
Application number
FR9606654A
Other languages
French (fr)
Other versions
FR2734744A1 (en
Inventor
Yoshio Fujikawa
Shoji Fujii
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.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co Ltd
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
Priority claimed from JP13351295A external-priority patent/JP3394358B2/en
Priority claimed from JP7133572A external-priority patent/JPH08326753A/en
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of FR2734744A1 publication Critical patent/FR2734744A1/en
Application granted granted Critical
Publication of FR2734744B1 publication Critical patent/FR2734744B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
    • F16C32/0651—Details of the bearing area per se
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
FR9606654A 1995-05-31 1996-05-30 CONTINUOUSLY COMPRESSED AIR BEARING SPINDLE FOR DRILLING MACHINES, PRECISION MACHINE TOOLS OR THE LIKE Expired - Fee Related FR2734744B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13351295A JP3394358B2 (en) 1995-05-31 1995-05-31 Hydrostatic air bearing spindle
JP7133572A JPH08326753A (en) 1995-05-31 1995-05-31 Static pressure air bearing spindle

Publications (2)

Publication Number Publication Date
FR2734744A1 FR2734744A1 (en) 1996-12-06
FR2734744B1 true FR2734744B1 (en) 1998-02-20

Family

ID=26467844

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9606654A Expired - Fee Related FR2734744B1 (en) 1995-05-31 1996-05-30 CONTINUOUSLY COMPRESSED AIR BEARING SPINDLE FOR DRILLING MACHINES, PRECISION MACHINE TOOLS OR THE LIKE

Country Status (3)

Country Link
DE (1) DE19621773A1 (en)
FR (1) FR2734744B1 (en)
GB (1) GB2302144B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4152553B2 (en) * 2000-02-10 2008-09-17 Ｔｈｋ株式会社 Spindle device with turbine rotor
DE10106204A1 (en) * 2001-02-10 2002-08-14 Rieter Ingolstadt Spinnerei Open-end spinning device with an aerostatic radial bearing for a spinning rotor
SE530270C2 (en) * 2006-03-10 2008-04-15 Lind Finance & Dev Ab Tool with a drive member arranged between a fluid bearing and the tooled end
SE530271C2 (en) * 2006-03-10 2008-04-15 Lind Finance & Dev Ab Tool with fluid bearing where the tooled shaft is releasably coupled
SE530269C2 (en) * 2006-03-10 2008-04-15 Lind Finance & Dev Ab Tool with a drive part arranged between a fluid bearing and the tool part
GB2467168B (en) * 2009-01-26 2011-03-16 Air Bearings Ltd Gas bearing and method of manufacturing the same
US11221039B2 (en) 2017-01-09 2022-01-11 Hamilton Sundstrand Corporation Bearing assembly with surface layer
DE102020104409A1 (en) * 2020-02-19 2021-08-19 Schenck Rotec Gmbh Aerostatic bearing for a rotor, especially in a balancing machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE388064A (en) * 1931-12-11
DE1296390B (en) * 1964-11-17 1969-05-29 Electronic Mbh Gyroscope
FR1550114A (en) * 1966-09-22 1968-12-20
FR1523585A (en) * 1967-05-05 1968-05-03 Improvements to fluid bearings
DE1288368B (en) * 1967-08-04 1969-01-30 W U H Gessner Fa Ball caster
US3466951A (en) * 1968-01-15 1969-09-16 Babcock & Wilcox Co Machine tools and instruments
GB1171571A (en) * 1968-02-06 1969-11-19 Sp Mfg Corp Machine Tools
US3493273A (en) * 1968-02-09 1970-02-03 Babcock & Wilcox Co Hydrostatic machine tool spindle
JPH0726650B2 (en) * 1989-01-20 1995-03-29 エヌティエヌ株式会社 Hydrostatic gas bearing spindle
GB2246176B (en) * 1990-07-17 1994-06-01 Ntn Toyo Bearing Co Ltd Spindle assembly
DE4336915C2 (en) * 1993-10-28 1996-09-12 Renk Ag Slide bearing combination

Also Published As

Publication number Publication date
GB2302144A (en) 1997-01-08
GB9611247D0 (en) 1996-07-31
GB2302144B (en) 2000-01-12
FR2734744A1 (en) 1996-12-06
DE19621773A1 (en) 1996-12-05

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070131