GB2235259B - Spindle assembly with externally pressurised gas bearing - Google Patents

Spindle assembly with externally pressurised gas bearing

Info

Publication number
GB2235259B
GB2235259B GB9016234A GB9016234A GB2235259B GB 2235259 B GB2235259 B GB 2235259B GB 9016234 A GB9016234 A GB 9016234A GB 9016234 A GB9016234 A GB 9016234A GB 2235259 B GB2235259 B GB 2235259B
Authority
GB
United Kingdom
Prior art keywords
gas bearing
spindle assembly
pressurised gas
externally pressurised
externally
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
GB9016234A
Other languages
English (en)
Other versions
GB9016234D0 (en
GB2235259A (en
Inventor
Shizuka Yamazaki
Yoshio Fujikawa
Koji Nakamura
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 JP1989089526U external-priority patent/JP2518939Y2/ja
Priority claimed from JP1990070117U external-priority patent/JP2531837Y2/ja
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of GB9016234D0 publication Critical patent/GB9016234D0/en
Publication of GB2235259A publication Critical patent/GB2235259A/en
Application granted granted Critical
Publication of GB2235259B publication Critical patent/GB2235259B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16C32/0603—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 gas cushion, e.g. an air cushion
    • F16C32/0614—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 gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
    • F16C32/0622—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 gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via nozzles, restrictors
    • 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
    • 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
    • B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/08—Rigid support of bearing units; Housings, e.g. caps, covers for spindles
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
GB9016234A 1989-07-28 1990-07-24 Spindle assembly with externally pressurised gas bearing Expired - Lifetime GB2235259B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1989089526U JP2518939Y2 (ja) 1989-07-28 1989-07-28 静圧気体軸受スピンドル
JP1990070117U JP2531837Y2 (ja) 1989-07-28 1990-06-29 高速静圧気体軸受装置

Publications (3)

Publication Number Publication Date
GB9016234D0 GB9016234D0 (en) 1990-09-05
GB2235259A GB2235259A (en) 1991-02-27
GB2235259B true GB2235259B (en) 1993-10-27

Family

ID=26411274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9016234A Expired - Lifetime GB2235259B (en) 1989-07-28 1990-07-24 Spindle assembly with externally pressurised gas bearing

Country Status (2)

Country Link
FR (1) FR2650352B1 (enrdf_load_stackoverflow)
GB (1) GB2235259B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103506637A (zh) * 2012-06-19 2014-01-15 株式会社捷太格特 主轴装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239892A (en) * 1990-08-27 1993-08-31 Mitutoyo Corporation Rotating device
JP3517263B2 (ja) * 1994-02-03 2004-04-12 Ｎｔｎ株式会社 静圧気体軸受スピンドル
JP2001254738A (ja) * 2000-03-10 2001-09-21 Ntn Corp 静圧気体軸受スピンドル
TW200402344A (en) * 2002-08-09 2004-02-16 Hitachi Via Mechanics Ltd Spindle device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1213514A (en) * 1967-03-10 1970-11-25 Bobcock & Wilcox Company Improvements in or relating to bearing assemblies
GB1309712A (en) * 1970-05-20 1973-03-14 Telecommunications Cita Alcate Spindle assembly
GB2046370A (en) * 1979-01-13 1980-11-12 Nippon Telegraph & Telephone Gas bearing
US4759644A (en) * 1986-09-30 1988-07-26 Ngk Spark Plug Co., Ltd. Gas bearing body

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4366993A (en) * 1980-01-07 1983-01-04 Nippon Telegraph & Telephone Corp. Gas bearings

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1213514A (en) * 1967-03-10 1970-11-25 Bobcock & Wilcox Company Improvements in or relating to bearing assemblies
GB1309712A (en) * 1970-05-20 1973-03-14 Telecommunications Cita Alcate Spindle assembly
GB2046370A (en) * 1979-01-13 1980-11-12 Nippon Telegraph & Telephone Gas bearing
US4759644A (en) * 1986-09-30 1988-07-26 Ngk Spark Plug Co., Ltd. Gas bearing body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103506637A (zh) * 2012-06-19 2014-01-15 株式会社捷太格特 主轴装置
CN103506637B (zh) * 2012-06-19 2017-09-01 株式会社捷太格特 主轴装置

Also Published As

Publication number Publication date
FR2650352A1 (enrdf_load_stackoverflow) 1991-02-01
GB9016234D0 (en) 1990-09-05
FR2650352B1 (enrdf_load_stackoverflow) 1995-05-12
GB2235259A (en) 1991-02-27

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20100723