FR2440800A1 - HYDRAULIC HOLLOW TIGHTENING JACK FOR TIGHTENING ARRANGEMENT ON ROTATING SPINDLE - Google Patents

HYDRAULIC HOLLOW TIGHTENING JACK FOR TIGHTENING ARRANGEMENT ON ROTATING SPINDLE

Info

Publication number
FR2440800A1
FR2440800A1 FR7927150A FR7927150A FR2440800A1 FR 2440800 A1 FR2440800 A1 FR 2440800A1 FR 7927150 A FR7927150 A FR 7927150A FR 7927150 A FR7927150 A FR 7927150A FR 2440800 A1 FR2440800 A1 FR 2440800A1
Authority
FR
France
Prior art keywords
tightening
rotating spindle
jack
cylinder
arrangement
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.)
Granted
Application number
FR7927150A
Other languages
French (fr)
Other versions
FR2440800B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2440800A1 publication Critical patent/FR2440800A1/en
Application granted granted Critical
Publication of FR2440800B1 publication Critical patent/FR2440800B1/fr
Granted 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/24—Cooling or lubrication means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Clamps And Clips (AREA)

Abstract

L'INVENTION CONCERNE LES MACHINES-OUTILS. ELLE A POUR OBJET UN VERIN HYDRAULIQUE CREUX DE SERRAGE DESTINE A ETRE MONTE SUR UNE BROCHE ROTATIVE. CE VERIN COMPREND UN CORPS 1 FORMANT UNE CAVITE 3 QUI EST FERMEE PAR UNE PAROI FRONTALE 1.4 DE LIAISON A LA BROCHE ET DANS LAQUELLE PEUT SE DEPLACER UN PISTON DE SERRAGE 4 QUI SE PROLONGE VERS L'AVANT PAR UN CANON DE GUIDAGE 5. LE CORPS 1 DU VERIN COMPORTE UN MANCHON DE GUIDAGE 13 TOURNANT DANS UN BOITIER DE RACCORDEMENT FIXE 16 ET DOTE DE CANAUX 19.1 ET 19.2 D'ALIMENTATION EN HUILE HYDRAULIQUE DES CHAMBRES 3.1 ET 3.2 DU VERIN. APPLICATION AUX TOURS POUR USINAGE DE PRODUITS LONGS.THE INVENTION CONCERNS MACHINE TOOLS. IT IS A HOLLOW HYDRAULIC CLAMPING CYLINDER INTENDED TO BE MOUNTED ON A ROTATING SPINDLE. THIS CYLINDER INCLUDES A BODY 1 FORMING A CAVITY 3 WHICH IS CLOSED BY A FRONT WALL 1.4 CONNECTING TO THE SPINDLE AND IN WHICH A TIGHTENING PISTON 4 CAN MOVE, WHICH EXTENDS FORWARD BY A GUIDE BARREL 5. THE BODY 1 OF THE CYLINDER INCLUDES A GUIDE SLEEVE 13 ROTATING IN A FIXED JUNCTION BOX 16 AND FITTED WITH CHANNELS 19.1 AND 19.2 FOR SUPPLYING HYDRAULIC OIL TO CHAMBERS 3.1 AND 3.2 OF THE CYLINDER. APPLICATION TO LATHES FOR MACHINING LONG PRODUCTS.

FR7927150A 1978-11-04 1979-11-02 HYDRAULIC HOLLOW TIGHTENING JACK FOR TIGHTENING ARRANGEMENT ON ROTATING SPINDLE Granted FR2440800A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2847951A DE2847951C2 (en) 1978-11-04 1978-11-04 Hydraulically operated hollow clamping cylinder for clamping devices on a rotating spindle, in particular a lathe spindle

Publications (2)

Publication Number Publication Date
FR2440800A1 true FR2440800A1 (en) 1980-06-06
FR2440800B1 FR2440800B1 (en) 1984-04-13

Family

ID=6053909

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7927150A Granted FR2440800A1 (en) 1978-11-04 1979-11-02 HYDRAULIC HOLLOW TIGHTENING JACK FOR TIGHTENING ARRANGEMENT ON ROTATING SPINDLE

Country Status (7)

Country Link
JP (1) JPS5570508A (en)
BR (1) BR7906992A (en)
CH (1) CH640444A5 (en)
DE (1) DE2847951C2 (en)
FR (1) FR2440800A1 (en)
GB (1) GB2034624A (en)
IT (1) IT1119395B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440801A1 (en) * 1978-11-04 1980-06-06 Roehm Guenter H HYDRAULIC TIGHTENING JACK, ESPECIALLY HOLLOW TIGHTENING JACK, FOR TIGHTENING ARRANGEMENT ON A ROTATING SPINDLE

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19823823C2 (en) * 1998-05-28 2000-12-07 Roehm Gmbh Clamping cylinder with cooling openings
JP4942632B2 (en) * 2007-12-21 2012-05-30 株式会社ノザワ Isobaric joint structure of vertically-extruded cement board
CN104325335B (en) * 2014-10-14 2017-04-19 东莞市晋诚机械有限公司 Hydraulic bidirectional spindle chuck seat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234078A1 (en) * 1973-06-22 1975-01-17 Roehm Guenter H
US3922952A (en) * 1973-04-04 1975-12-02 Cushman Ind Inc Hydraulic operating mechanism for a rotary chuck
FR2440801A1 (en) * 1978-11-04 1980-06-06 Roehm Guenter H HYDRAULIC TIGHTENING JACK, ESPECIALLY HOLLOW TIGHTENING JACK, FOR TIGHTENING ARRANGEMENT ON A ROTATING SPINDLE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1075565A (en) * 1953-03-09 1954-10-18 Prec Ind Hydraulic actuator for machine tool part carriers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922952A (en) * 1973-04-04 1975-12-02 Cushman Ind Inc Hydraulic operating mechanism for a rotary chuck
FR2234078A1 (en) * 1973-06-22 1975-01-17 Roehm Guenter H
FR2440801A1 (en) * 1978-11-04 1980-06-06 Roehm Guenter H HYDRAULIC TIGHTENING JACK, ESPECIALLY HOLLOW TIGHTENING JACK, FOR TIGHTENING ARRANGEMENT ON A ROTATING SPINDLE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440801A1 (en) * 1978-11-04 1980-06-06 Roehm Guenter H HYDRAULIC TIGHTENING JACK, ESPECIALLY HOLLOW TIGHTENING JACK, FOR TIGHTENING ARRANGEMENT ON A ROTATING SPINDLE

Also Published As

Publication number Publication date
BR7906992A (en) 1980-06-24
GB2034624A (en) 1980-06-11
FR2440800B1 (en) 1984-04-13
JPS5570508A (en) 1980-05-28
IT7968995A0 (en) 1979-10-12
CH640444A5 (en) 1984-01-13
DE2847951C2 (en) 1986-10-23
DE2847951A1 (en) 1980-05-14
IT1119395B (en) 1986-03-10

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Legal Events

Date Code Title Description
ST Notification of lapse