FR2241708A1 - Machine tool mandrel rotary hydraulic jack - has spring loaded slides controlling flow through rotary bearings - Google Patents

Machine tool mandrel rotary hydraulic jack - has spring loaded slides controlling flow through rotary bearings

Info

Publication number
FR2241708A1
FR2241708A1 FR7313662A FR7313662A FR2241708A1 FR 2241708 A1 FR2241708 A1 FR 2241708A1 FR 7313662 A FR7313662 A FR 7313662A FR 7313662 A FR7313662 A FR 7313662A FR 2241708 A1 FR2241708 A1 FR 2241708A1
Authority
FR
France
Prior art keywords
jack
rotary
machine tool
hydraulic jack
spring loaded
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
FR7313662A
Other languages
French (fr)
Other versions
FR2241708B1 (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.)
PRECISION INDUSTRIELLE
Original Assignee
PRECISION INDUSTRIELLE
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 PRECISION INDUSTRIELLE filed Critical PRECISION INDUSTRIELLE
Priority to FR7313662A priority Critical patent/FR2241708A1/en
Publication of FR2241708A1 publication Critical patent/FR2241708A1/en
Application granted granted Critical
Publication of FR2241708B1 publication Critical patent/FR2241708B1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

The jack has, connected to the rotating parts of each of the two supply lines for the jack compartments, a non-return valve associated with a pressure accumulator, and a cylindrical volume, locally enlarged, inside which moves a drum shaped slide with a flared sealing lip normally positioned so that the lip is in touch with the cylinder's internal surface. The wider volume is connected to a compartment of the jack while a hole drilled in a lateral wall is connected upstream of this compartment and the part of the volume beyond the enlarged end of the slide is connected with the rotating part of the jack.
FR7313662A 1973-04-16 1973-04-16 Machine tool mandrel rotary hydraulic jack - has spring loaded slides controlling flow through rotary bearings Granted FR2241708A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7313662A FR2241708A1 (en) 1973-04-16 1973-04-16 Machine tool mandrel rotary hydraulic jack - has spring loaded slides controlling flow through rotary bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7313662A FR2241708A1 (en) 1973-04-16 1973-04-16 Machine tool mandrel rotary hydraulic jack - has spring loaded slides controlling flow through rotary bearings

Publications (2)

Publication Number Publication Date
FR2241708A1 true FR2241708A1 (en) 1975-03-21
FR2241708B1 FR2241708B1 (en) 1976-04-23

Family

ID=9118002

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7313662A Granted FR2241708A1 (en) 1973-04-16 1973-04-16 Machine tool mandrel rotary hydraulic jack - has spring loaded slides controlling flow through rotary bearings

Country Status (1)

Country Link
FR (1) FR2241708A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2829146A1 (en) * 1977-07-04 1979-01-25 Precisi On Ind Rueil Malmaison HYDRAULIC CYLINDERS, IN PARTICULAR FOR CONTROLLING A WORKPIECE CHUCK FOR MACHINE TOOLS
FR2448726A1 (en) * 1979-02-07 1980-09-05 Plessey Handel Investment Ag SIDE SCANNING ULTRASONIC RADAR
EP0200796A2 (en) * 1983-11-04 1986-11-12 Kabushiki Kaisha Kitagawa Tekkosho Rotary fluid pressure cylinder device for operating chucks for machine tools

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2829146A1 (en) * 1977-07-04 1979-01-25 Precisi On Ind Rueil Malmaison HYDRAULIC CYLINDERS, IN PARTICULAR FOR CONTROLLING A WORKPIECE CHUCK FOR MACHINE TOOLS
FR2448726A1 (en) * 1979-02-07 1980-09-05 Plessey Handel Investment Ag SIDE SCANNING ULTRASONIC RADAR
EP0200796A2 (en) * 1983-11-04 1986-11-12 Kabushiki Kaisha Kitagawa Tekkosho Rotary fluid pressure cylinder device for operating chucks for machine tools
EP0200796A3 (en) * 1983-11-04 1988-01-20 Kabushiki Kaisha Kitagawa Tekkosho Rotary fluid pressure cylinder device for operating chucks for machine tools

Also Published As

Publication number Publication date
FR2241708B1 (en) 1976-04-23

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse