GB1203483A - Improvements in a hydro-dynamic spindle assembly having a spindle rotatable with axial reciprocation - Google Patents

Improvements in a hydro-dynamic spindle assembly having a spindle rotatable with axial reciprocation

Info

Publication number
GB1203483A
GB1203483A GB24776/68A GB2477668A GB1203483A GB 1203483 A GB1203483 A GB 1203483A GB 24776/68 A GB24776/68 A GB 24776/68A GB 2477668 A GB2477668 A GB 2477668A GB 1203483 A GB1203483 A GB 1203483A
Authority
GB
United Kingdom
Prior art keywords
spindle
hydro
dynamic
axial reciprocation
rings
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
Application number
GB24776/68A
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 SNR Roulements SA
Original Assignee
Societe Nouvelle de Roulements SNR SA
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 Societe Nouvelle de Roulements SNR SA filed Critical Societe Nouvelle de Roulements SNR SA
Publication of GB1203483A publication Critical patent/GB1203483A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/26—Fluid-pressure drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • 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
    • F16C35/10—Rigid support of bearing units; Housings, e.g. caps, covers for spindles with sliding-contact bearings
    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/904—Tool drive turbine, e.g. dental drill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

1,203,483. Grinding. SOC. NOUVELIE DE ROULEMENTS. 23 May, 1968 [26 May, 1967], No. 24776/68. Heading B3D. A hydro-dynamic spindle assembly comprises a spindle 2 for rotation and axial reciprocation in hydro-dynamic bearings 3, 4, the axial reciprocation of the spindle being effected by hydraulic pressure applied to the spindle and transmitted to a tool, such as a grinding wheel, directly by the spindle, the pressure and its regulation being controlled by a distribution device and the fluid being utilized to lubricate the bearings of the spindle. Each hydrodynamic bearing comprises three bushes supported in the body 1 of the assembly. The spindle is formed with a collar 10 acting as a piston located between a pair of rings 12, 13 and defining chambers 14, 15 alternately supplied with fluid pressure from a valve 18 having a spool 30 reciprocated by a crank 31 to reciprocate the spindle. Fluid pressure from the chambers passes through gaps between the spindle and rings to the bearings 3, 4. The ends of the stroke of the collar 10 are limited by hydro-dynamic stops formed by wedges of fluid in V-shaped slots 38 in the rings 12, 13.
GB24776/68A 1967-05-26 1968-05-23 Improvements in a hydro-dynamic spindle assembly having a spindle rotatable with axial reciprocation Expired GB1203483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR108000A FR1536259A (en) 1967-05-26 1967-05-26 Hydrodynamic wandering spindle rotating at high speed

Publications (1)

Publication Number Publication Date
GB1203483A true GB1203483A (en) 1970-08-26

Family

ID=8631704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24776/68A Expired GB1203483A (en) 1967-05-26 1968-05-23 Improvements in a hydro-dynamic spindle assembly having a spindle rotatable with axial reciprocation

Country Status (3)

Country Link
US (1) US3589239A (en)
FR (1) FR1536259A (en)
GB (1) GB1203483A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107756252A (en) * 2017-10-18 2018-03-06 郑州磨料磨具磨削研究所有限公司 A kind of grinding wheel dressing method and device based on hydrodynamic driving

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447945A (en) * 2013-08-30 2013-12-18 栾谨泉 Improved dual-support oil wedge-shaped dynamic pressure spindle assembly for conical roller coreless grinding machine
CN104493666B (en) * 2014-11-26 2017-03-08 镇江维纳特气门有限公司 A kind of Valve Disc high accuracy one-shot forming grinding attachment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807141A (en) * 1953-06-02 1957-09-24 Don S Strader Pulsator for a hydraulic system
FR1366093A (en) * 1963-05-27 1964-07-10 Landis Gendron S A Device for controlling cyclic axial movements of a machine rotating spindle
GB1002502A (en) * 1963-09-04 1965-08-25 Albert Warmingham Hodgson Machine tool pecking device
US3475106A (en) * 1967-05-11 1969-10-28 Harold E G Arneson Fluid self-governing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107756252A (en) * 2017-10-18 2018-03-06 郑州磨料磨具磨削研究所有限公司 A kind of grinding wheel dressing method and device based on hydrodynamic driving
CN107756252B (en) * 2017-10-18 2019-12-20 郑州磨料磨具磨削研究所有限公司 Grinding wheel dressing method and device based on fluid dynamic pressure driving

Also Published As

Publication number Publication date
US3589239A (en) 1971-06-29
FR1536259A (en) 1968-08-16
DE1752426A1 (en) 1970-12-03
DE1752426B2 (en) 1972-02-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee