WO2010146419A3 - Hydraulic actuator with movement decoupling, combination of such a hydraulic actuator with a hydropneumatic converter, and application of such an actuator to machine-tools - Google Patents

Hydraulic actuator with movement decoupling, combination of such a hydraulic actuator with a hydropneumatic converter, and application of such an actuator to machine-tools Download PDF

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Publication number
WO2010146419A3
WO2010146419A3 PCT/IB2009/052624 IB2009052624W WO2010146419A3 WO 2010146419 A3 WO2010146419 A3 WO 2010146419A3 IB 2009052624 W IB2009052624 W IB 2009052624W WO 2010146419 A3 WO2010146419 A3 WO 2010146419A3
Authority
WO
WIPO (PCT)
Prior art keywords
movement
hydraulic actuator
actuator
linear movement
rotating
Prior art date
Application number
PCT/IB2009/052624
Other languages
French (fr)
Other versions
WO2010146419A2 (en
Inventor
Ercio Miguel Nema
Original Assignee
Ercio Miguel Nema
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 Ercio Miguel Nema filed Critical Ercio Miguel Nema
Priority to PCT/IB2009/052624 priority Critical patent/WO2010146419A2/en
Publication of WO2010146419A2 publication Critical patent/WO2010146419A2/en
Publication of WO2010146419A3 publication Critical patent/WO2010146419A3/en

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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
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

The invention relates to a hydraulic actuator with movement decoupling, that can be applied to actuations where a linear movement must be performed while ensuring the freedom of a rotary movement. A hydraulic cylinder (03) held on the fixed part of the machine comprises a piston (01) that can perform the required linear movement, said piston comprising a mechanical interface (11) that can transmit the linear movement towards the rotating part (08) by means of an axle or a concentric master tube (07) axially sliding in the rotating part and rotating therewith. The interface performs a decoupling between the linear movement and the rotating movement, leaving the rotating movement entirely free. The invention also relates to the combination of the main hydraulic actuator with a hydropneumatic converter, the converter comprising a pneumatic cylinder (24) containing an annular pneumatic piston (20). The pneumatic piston can drive at least one pressure amplifying hydaulic cylinder (19, 25) along with its linear movement.
PCT/IB2009/052624 2009-06-18 2009-06-18 Hydraulic actuator with movement decoupling, combination of such a hydraulic actuator with a hydropneumatic converter, and application of such an actuator to machine-tools WO2010146419A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2009/052624 WO2010146419A2 (en) 2009-06-18 2009-06-18 Hydraulic actuator with movement decoupling, combination of such a hydraulic actuator with a hydropneumatic converter, and application of such an actuator to machine-tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2009/052624 WO2010146419A2 (en) 2009-06-18 2009-06-18 Hydraulic actuator with movement decoupling, combination of such a hydraulic actuator with a hydropneumatic converter, and application of such an actuator to machine-tools

Publications (2)

Publication Number Publication Date
WO2010146419A2 WO2010146419A2 (en) 2010-12-23
WO2010146419A3 true WO2010146419A3 (en) 2011-08-18

Family

ID=43356818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/052624 WO2010146419A2 (en) 2009-06-18 2009-06-18 Hydraulic actuator with movement decoupling, combination of such a hydraulic actuator with a hydropneumatic converter, and application of such an actuator to machine-tools

Country Status (1)

Country Link
WO (1) WO2010146419A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948542A (en) * 1958-05-29 1960-08-09 Gisholt Machine Co Two-jaw indexing chuck
FR2009318A1 (en) * 1968-05-25 1970-01-30 Uzinele Ind Sirmei
FR2404492A1 (en) * 1977-09-30 1979-04-27 Lejeune Sa Hydropneumatic ram for machine tool vice - multiplies force using two prim, pneumatic rams operating sec hydraulic ram
DE3226784C1 (en) * 1982-07-17 1984-03-22 Gildemeister Ag, 4800 Bielefeld Rotating hollow clamping device for machine tools for actuating collets and chucks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948542A (en) * 1958-05-29 1960-08-09 Gisholt Machine Co Two-jaw indexing chuck
FR2009318A1 (en) * 1968-05-25 1970-01-30 Uzinele Ind Sirmei
FR2404492A1 (en) * 1977-09-30 1979-04-27 Lejeune Sa Hydropneumatic ram for machine tool vice - multiplies force using two prim, pneumatic rams operating sec hydraulic ram
DE3226784C1 (en) * 1982-07-17 1984-03-22 Gildemeister Ag, 4800 Bielefeld Rotating hollow clamping device for machine tools for actuating collets and chucks

Also Published As

Publication number Publication date
WO2010146419A2 (en) 2010-12-23

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