FR2404492A1 - Hydropneumatic ram for machine tool vice - multiplies force using two prim, pneumatic rams operating sec hydraulic ram - Google Patents

Hydropneumatic ram for machine tool vice - multiplies force using two prim, pneumatic rams operating sec hydraulic ram

Info

Publication number
FR2404492A1
FR2404492A1 FR7730166A FR7730166A FR2404492A1 FR 2404492 A1 FR2404492 A1 FR 2404492A1 FR 7730166 A FR7730166 A FR 7730166A FR 7730166 A FR7730166 A FR 7730166A FR 2404492 A1 FR2404492 A1 FR 2404492A1
Authority
FR
France
Prior art keywords
prim
ram
vice
hydropneumatic
machine tool
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
FR7730166A
Other languages
French (fr)
Other versions
FR2404492B1 (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.)
LEJEUNE SA
Original Assignee
LEJEUNE 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 LEJEUNE SA filed Critical LEJEUNE SA
Priority to FR7730166A priority Critical patent/FR2404492A1/en
Publication of FR2404492A1 publication Critical patent/FR2404492A1/en
Application granted granted Critical
Publication of FR2404492B1 publication Critical patent/FR2404492B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/18—Arrangements for positively actuating jaws motor driven, e.g. with fluid drive, with or without provision for manual actuation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Gripping On Spindles (AREA)

Abstract

The hydropneumatic ram may be incorporated on a vice and may be used to secure a workpiece to a machine-tool. The unit has two or more parallel pistons which are displaced pneumatically giving rise to increased hydraulic pressure on a sec. piston. The sec. piston displaces the jaw of the vice. The prim. pistons travel in similar cylinders which are fixed together by a central hollow cylindrical tie between a capping plate and a head block. The sec. cylinder may be located between the prim. cylinders and the tie also serves to distribute compressed air to the fore and aft of the prim. pistons.
FR7730166A 1977-09-30 1977-09-30 Hydropneumatic ram for machine tool vice - multiplies force using two prim, pneumatic rams operating sec hydraulic ram Granted FR2404492A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7730166A FR2404492A1 (en) 1977-09-30 1977-09-30 Hydropneumatic ram for machine tool vice - multiplies force using two prim, pneumatic rams operating sec hydraulic ram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7730166A FR2404492A1 (en) 1977-09-30 1977-09-30 Hydropneumatic ram for machine tool vice - multiplies force using two prim, pneumatic rams operating sec hydraulic ram

Publications (2)

Publication Number Publication Date
FR2404492A1 true FR2404492A1 (en) 1979-04-27
FR2404492B1 FR2404492B1 (en) 1982-11-26

Family

ID=9196200

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730166A Granted FR2404492A1 (en) 1977-09-30 1977-09-30 Hydropneumatic ram for machine tool vice - multiplies force using two prim, pneumatic rams operating sec hydraulic ram

Country Status (1)

Country Link
FR (1) FR2404492A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002492A1 (en) * 1982-12-20 1984-07-05 Ptp Patent Tech Prozesse Ag Hydraulic, pneumatic, pneumatic/hydraulic or combined pneumatic/explosion press
FR2628018A1 (en) * 1988-03-04 1989-09-08 Lejeune Sa HYDROPNEUMATIC CLAMPING STRETCH
WO2010146419A2 (en) * 2009-06-18 2010-12-23 Ercio Miguel Nema Hydraulic actuator with movement decoupling, combination of such a hydraulic actuator with a hydropneumatic converter, and application of such an actuator to machine-tools
WO2010146418A2 (en) * 2009-06-18 2010-12-23 Ercio Miguel Nema Rotary hydropneumatic actuator having a pneumatic interface, and application of such an actuator to machine tools

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002492A1 (en) * 1982-12-20 1984-07-05 Ptp Patent Tech Prozesse Ag Hydraulic, pneumatic, pneumatic/hydraulic or combined pneumatic/explosion press
US4658629A (en) * 1982-12-20 1987-04-21 Ptp Patentierte Technologische Prozesse Ag Hydraulic, pneumatic, pneumatic-hydraulic or combined pneumatic-explosion press
FR2628018A1 (en) * 1988-03-04 1989-09-08 Lejeune Sa HYDROPNEUMATIC CLAMPING STRETCH
WO2010146419A2 (en) * 2009-06-18 2010-12-23 Ercio Miguel Nema Hydraulic actuator with movement decoupling, combination of such a hydraulic actuator with a hydropneumatic converter, and application of such an actuator to machine-tools
WO2010146418A2 (en) * 2009-06-18 2010-12-23 Ercio Miguel Nema Rotary hydropneumatic actuator having a pneumatic interface, and application of such an actuator to machine tools
WO2010146418A3 (en) * 2009-06-18 2011-08-18 Ercio Miguel Nema Rotary hydropneumatic actuator having a pneumatic interface, and application of such an actuator to machine tools
WO2010146419A3 (en) * 2009-06-18 2011-08-18 Ercio Miguel Nema Hydraulic actuator with movement decoupling, combination of such a hydraulic actuator with a hydropneumatic converter, and application of such an actuator to machine-tools

Also Published As

Publication number Publication date
FR2404492B1 (en) 1982-11-26

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Legal Events

Date Code Title Description
ST Notification of lapse