GB1442775A - Apparatus for actuating a rotary work gripping collet - Google Patents

Apparatus for actuating a rotary work gripping collet

Info

Publication number
GB1442775A
GB1442775A GB4621673A GB4621673A GB1442775A GB 1442775 A GB1442775 A GB 1442775A GB 4621673 A GB4621673 A GB 4621673A GB 4621673 A GB4621673 A GB 4621673A GB 1442775 A GB1442775 A GB 1442775A
Authority
GB
United Kingdom
Prior art keywords
piston
chamber
fluid pressure
sleeve
valve means
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
GB4621673A
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.)
Hardinge Inc
Original Assignee
Hardinge Brothers Inc
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 Hardinge Brothers Inc filed Critical Hardinge Brothers Inc
Publication of GB1442775A publication Critical patent/GB1442775A/en
Expired 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
    • B23B31/302—Hydraulic equipment, e.g. pistons, valves, rotary joints
    • 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
    • Y10T279/12—Chucks or sockets with fluid-pressure actuator
    • Y10T279/1208—Chucks or sockets with fluid-pressure actuator with measuring, indicating or control 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
    • Y10T279/12—Chucks or sockets with fluid-pressure actuator
    • Y10T279/1241—Socket type
    • Y10T279/1249—Collet

Abstract

1442775 Hollow spindles; chucks HARDINGE BROS Inc 3 Oct 1973 [3 Aug 1973] 46216/73 Headings B3T and B3B [Also in Division F2] A device or actuating a rotary gripping collet comprises a cylinder 18 mounted to a rotary spindle sleeve 44, a collet drawing member 12 extending through the cylinder 18 and being axially movable therethrough, a piston 16 slidable in the cylinder and connected to the drawing member, said piston including a first valve means 106 for admitting fluid pressure into a first chamber on one side of the piston and a second valve means 108 for admitting fluid pressure into the second chamber 98 on the other side of the piston, said first valve means 106 including a piston 134 to vent said first chamber when fluid pressure is admitted to the second chamber and said second valve 108 including a piston 135 to vent said second chamber when fluid pressure is admitted to said first chamber, and a stationary sleeve connection 20 for alternately connecting a source of pressure fluid, e.g. air, to said first or second chambers through said first and second valve means 106, 108, the said valve means 106, 108 being biased by springs 114, 115 to a closed position to trap fluid in a respective chamber of the cylinder when the fluid pressure is reduced so that a workpiece is held by the collet even when the fluid pressure source fails. The draw member 12 is constructed of an inner sleeve 32 having a pair of spaced apart slots and an outer sleeve 30 in close fitting engagement with the inner sleeve to form with the said slots a pair of fluid passageways 68, 70 connecting the sleeve connection 20 to passages 130, 131 in the piston 16. The inner sleeve 32 is connected to a further sleeve 52 which is screw connected to the collet.
GB4621673A 1973-08-03 1973-10-03 Apparatus for actuating a rotary work gripping collet Expired GB1442775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US385549A US3924514A (en) 1973-08-03 1973-08-03 Apparatus for actuating a work gripping device

Publications (1)

Publication Number Publication Date
GB1442775A true GB1442775A (en) 1976-07-14

Family

ID=23521873

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2775475A Expired GB1442776A (en) 1973-08-03 1973-10-03 Through-hole collet drawing member
GB4621673A Expired GB1442775A (en) 1973-08-03 1973-10-03 Apparatus for actuating a rotary work gripping collet

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2775475A Expired GB1442776A (en) 1973-08-03 1973-10-03 Through-hole collet drawing member

Country Status (4)

Country Link
US (1) US3924514A (en)
AU (1) AU464774B2 (en)
CA (1) CA980560A (en)
GB (2) GB1442776A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604944A1 (en) * 1985-02-18 1986-08-21 Kitagawa Iron Works Co., Ltd., Fuchu, Hiroshima ROTATING LIQUID CYLINDER FOR ACTUATING CLAMPING DEVICES

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080716A (en) * 1977-04-25 1978-03-28 Wilhelm Hegenscheidt Gesellschaft Mbh Method for controlling proper clamping of a workpiece in a clamping device
DE7932853U1 (en) * 1979-11-21 1980-02-21 Roehm, Guenter Horst, 7927 Sontheim REVOLVING CLAMPING CYLINDER WITH CLAMPING PISTON FOR CLAMPING DEVICES ON MACHINE TOOLS
US4342257A (en) * 1980-04-28 1982-08-03 Weyer Paul P Rotary actuator with integral fluid coupling joint
US4495754A (en) * 1982-05-12 1985-01-29 Cartner Jack O Trailing wing mower with hydraulic breakaway system
GB8521514D0 (en) * 1985-08-29 1985-10-02 Pratt Int Ltd Burnerd Chucks
US5221098A (en) * 1991-11-05 1993-06-22 Hardinge Brothers, Inc. Collet closer
DE19705362A1 (en) 1997-02-12 1998-08-13 Heinz Dieter Schunk Gmbh & Co Clamping cylinder
US6036415A (en) * 1998-09-04 2000-03-14 Hardinge, Inc. Spindle for gripping and closing a mounting member
US20080282878A1 (en) * 2007-05-16 2008-11-20 Cheng-Chung Chai Pneumatic rotary actuator
DE102009026118A1 (en) * 2009-07-07 2011-01-13 Röhm Gmbh Pneumatic clamping cylinder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017006A (en) * 1959-10-01 1962-01-16 Clark Equipment Co Clutch mechanism
US3369464A (en) * 1964-01-24 1968-02-20 Forkardt Paul Kg Method of and apparatus for actuating double-acting rotatable clamping means, especially for working spindles
US3364823A (en) * 1965-07-09 1968-01-23 Erickson Tool Co Fluid motor and control valve assembly therefor
US3411415A (en) * 1966-03-14 1968-11-19 Erickson Tool Co Fluid motor and control valve assembly therefor
FR2033691A5 (en) * 1969-03-07 1970-12-04 Roehm Gmbh
FR2055206A5 (en) * 1970-05-09 1971-05-07 Pinto Mario Spa

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604944A1 (en) * 1985-02-18 1986-08-21 Kitagawa Iron Works Co., Ltd., Fuchu, Hiroshima ROTATING LIQUID CYLINDER FOR ACTUATING CLAMPING DEVICES
GB2172527A (en) * 1985-02-18 1986-09-24 Kitagawa Iron Works Co Rotary fluid cylinders for operating chucks
US4747337A (en) * 1985-02-18 1988-05-31 Kitagawa Iron Works Co., Ltd. Rotary fluid cylinders for operating chucks

Also Published As

Publication number Publication date
AU6160073A (en) 1975-05-29
US3924514A (en) 1975-12-09
AU464774B2 (en) 1975-09-04
CA980560A (en) 1975-12-30
GB1442776A (en) 1976-07-14

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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