IT1272498B - ADJUSTABLE HYDRAULIC ADVANCE DEVICE - Google Patents

ADJUSTABLE HYDRAULIC ADVANCE DEVICE

Info

Publication number
IT1272498B
IT1272498B ITMI931775A ITMI931775A IT1272498B IT 1272498 B IT1272498 B IT 1272498B IT MI931775 A ITMI931775 A IT MI931775A IT MI931775 A ITMI931775 A IT MI931775A IT 1272498 B IT1272498 B IT 1272498B
Authority
IT
Italy
Prior art keywords
control
valve
adjustable hydraulic
detected
fluid under
Prior art date
Application number
ITMI931775A
Other languages
Italian (it)
Inventor
Rainer Drechsler
Pierre Heiby
Original Assignee
Rexroth Mannesmann Gmbh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6465960&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IT1272498(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rexroth Mannesmann Gmbh filed Critical Rexroth Mannesmann Gmbh
Publication of ITMI931775A0 publication Critical patent/ITMI931775A0/en
Publication of ITMI931775A1 publication Critical patent/ITMI931775A1/en
Application granted granted Critical
Publication of IT1272498B publication Critical patent/IT1272498B/en

Links

Classifications

    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0435—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being sliding valves
    • 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/202—Externally-operated valves mounted in or on the actuator
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/09—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor with electrical control means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B2013/0409—Position sensing or feedback of the valve member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Servomotors (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

L'invenzione riguarda un dispositivo di avanzamento idraulico regolabile, specialmente per macchine utensili. Un noto dispositivo di avanzamento di tale tipo possiede un cilindro differenziale, la cui posizione è rilevabile da un traduttore meccanico, con una valvola di regolazione, con la quale è possibile comandare i percorsi del fluido in pressione fra il cilindro differenziale, con una sorgente, di fluido in pressione ed un serbatoio e la quale comprende una valvola proporzionale azionabile idraulicamente, con un primo pistone di comando centrato da una molla, la cui posizione è rilevabile da un secondo trasduttore meccanico, e una valvola pilota con un secondo pistone di comando, che è centrata in posizione centrale mediante il ritorno della pressione di comando e possiede un unità elettronica di regolazione per la valvola di regolazione e una unità di comando della macchina.The invention relates to an adjustable hydraulic advancement device, especially for machine tools. A known advancement device of this type has a differential cylinder, the position of which can be detected by a mechanical translator, with a regulating valve, with which it is possible to control the paths of the fluid under pressure between the differential cylinder, with a source, of fluid under pressure and a tank and which includes a proportional valve which can be operated hydraulically, with a first control piston centered by a spring, the position of which can be detected by a second mechanical transducer, and a pilot valve with a second control piston, which is centrally centered by the return of the control pressure and has an electronic regulation unit for the regulation valve and a control unit of the machine.

ITMI931775A 1992-08-20 1993-08-05 ADJUSTABLE HYDRAULIC ADVANCE DEVICE IT1272498B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4227563A DE4227563C2 (en) 1992-08-20 1992-08-20 Controlled hydraulic feed drive

Publications (3)

Publication Number Publication Date
ITMI931775A0 ITMI931775A0 (en) 1993-08-05
ITMI931775A1 ITMI931775A1 (en) 1995-02-05
IT1272498B true IT1272498B (en) 1997-06-23

Family

ID=6465960

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI931775A IT1272498B (en) 1992-08-20 1993-08-05 ADJUSTABLE HYDRAULIC ADVANCE DEVICE

Country Status (2)

Country Link
DE (1) DE4227563C2 (en)
IT (1) IT1272498B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4245890B2 (en) * 2002-10-07 2009-04-02 ナブテスコ株式会社 Fluid device
US8635940B2 (en) 2008-01-07 2014-01-28 Vanderbilt University Solenoid valve assembly
DE102009011441B4 (en) 2009-02-25 2012-11-29 Voith Patent Gmbh hydraulic drive
DE102016106589B4 (en) * 2016-04-11 2019-08-14 Schwing Gmbh Electrohydraulic control circuit with stepper motor and manipulator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1400007A (en) * 1971-10-05 1975-07-16 Lucas Acrospace Ltd Electro-hydraulic actuator arrangement
DE2343662C2 (en) * 1973-08-30 1986-04-30 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic control device
GB1414541A (en) * 1973-11-23 1975-11-19 Mitsubishi Heavy Ind Ltd Retroactive position control apparatus
US4007666A (en) * 1974-05-23 1977-02-15 Pneumo Corporation Servoactuator
US4757747A (en) * 1986-04-08 1988-07-19 Vickers, Incorporated Power transmission
DE3642642C3 (en) * 1986-12-13 1994-09-01 Rexroth Mannesmann Gmbh Circuit arrangement for position and feed control of a hydraulic drive
DE3813020C2 (en) * 1988-04-19 1996-12-19 Bosch Gmbh Robert Device for controlling the feed of a hydraulic actuating device
DE3821891C2 (en) * 1988-06-29 1994-05-19 Rexroth Mannesmann Gmbh CNC controlled hydraulic positioning drive
EP0471884B1 (en) * 1990-08-24 1996-02-21 MOOG GmbH Electrohydraulic servovalve

Also Published As

Publication number Publication date
ITMI931775A0 (en) 1993-08-05
DE4227563C2 (en) 2000-04-13
DE4227563A1 (en) 1994-02-24
ITMI931775A1 (en) 1995-02-05

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970828