EP2514977A3 - Press block - Google Patents

Press block Download PDF

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Publication number
EP2514977A3
EP2514977A3 EP12002738.8A EP12002738A EP2514977A3 EP 2514977 A3 EP2514977 A3 EP 2514977A3 EP 12002738 A EP12002738 A EP 12002738A EP 2514977 A3 EP2514977 A3 EP 2514977A3
Authority
EP
European Patent Office
Prior art keywords
pressure chamber
connection
valve
hold
directional valve
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
EP12002738.8A
Other languages
German (de)
French (fr)
Other versions
EP2514977A2 (en
EP2514977B1 (en
Inventor
Nicolas Cano
Heiko Schwannauer
Benedetto Silvani
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2514977A2 publication Critical patent/EP2514977A2/en
Publication of EP2514977A3 publication Critical patent/EP2514977A3/en
Application granted granted Critical
Publication of EP2514977B1 publication Critical patent/EP2514977B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • B30B15/281—Arrangements for preventing distortion of, or damage to, presses or parts thereof overload limiting devices
    • B30B15/284—Arrangements for preventing distortion of, or damage to, presses or parts thereof overload limiting devices releasing fluid from a fluid chamber subjected to overload pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F15B2211/20584—Combinations of pumps with high and low capacity
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/41—Flow control characterised by the positions of the valve element
    • F15B2211/411—Flow control characterised by the positions of the valve element the positions being discrete
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41554—Flow control characterised by the connections of the flow control means in the circuit being connected to a return line and a directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5156—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a return line and a directional control valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Presses (AREA)

Abstract

Offenbart wird ein hydraulischer Steuerungsblock einer Presse bestehend aus einem Grundblock mit einem Hochhalteventil (4), das mit einem Anschluss für eine erste ausgewählte Druckkammer (R) eines hydraulischen Pressenverbrauchers (1) verbunden ist und an das ausgehend von ersten Druckkammeranschluss stromab ein Richtungsventil (10) angeschlossen ist, das wahlweise ein Druckmittel von einem stromab zum Richtungsventil (10) angeordneten, mit einer Pumpe (P) verbindbaren Druckmittelanschluss über das Hochhalteventil (4) zum ersten Druckkammeranschluss (R) oder zu einem Anschluss für eine zweite Gegendruckkammer (K) leitet, um vorbestimmte Grundbewegungs- und Sicherungsfunktionen zu ermöglichen. Erfindungsgemäß wird im Grundblock ein sicherer Fluidpfad definiert bestehend aus dem ersten Druckkammeranschluss (R), dem Hochhalteventil (4) und dem Richtungsventil (10), in den entweder überhaupt keine oder ausschließlich strömungstechnisch begrenzte oder limitierte Zu- und/oder Abflüsse münden.

Figure imgaf001
Disclosed is a hydraulic control block of a press comprising a base block with a hold-up valve (4) which is connected to a connection for a first selected pressure chamber (R) of a hydraulic press consumer (1) and to which from the first pressure chamber connection downstream of a directional valve (10 ) is connected, which selectively a pressure medium from a downstream of the directional valve (10) arranged with a pump (P) connectable pressure medium connection via the hold valve (4) to the first pressure chamber port (R) or to a connection for a second back pressure chamber (K) passes to enable predetermined basic movement and security functions. According to the invention, a safe fluid path is defined in the basic block consisting of the first pressure chamber connection (R), the hold-up valve (4) and the directional valve (10) into which either no flow or limited flow or limited flows open.
Figure imgaf001
EP12002738.8A 2011-04-23 2012-04-19 Control bloc for a press Active EP2514977B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011018473 2011-04-23
DE102011116328A DE102011116328A1 (en) 2011-04-23 2011-10-18 Press block

Publications (3)

Publication Number Publication Date
EP2514977A2 EP2514977A2 (en) 2012-10-24
EP2514977A3 true EP2514977A3 (en) 2014-04-02
EP2514977B1 EP2514977B1 (en) 2023-07-19

Family

ID=46045662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12002738.8A Active EP2514977B1 (en) 2011-04-23 2012-04-19 Control bloc for a press

Country Status (3)

Country Link
EP (1) EP2514977B1 (en)
BR (1) BR102012009138B1 (en)
DE (1) DE102011116328A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3144543A1 (en) 2015-09-17 2017-03-22 Robert Bosch Gmbh Device and method for controlling a safety valve arrangement
EP3248743B1 (en) * 2016-05-27 2018-07-25 Adolf Mohr Maschinenfabrik GmbH & Co. KG Cutting machine
DE102016120068A1 (en) * 2016-10-21 2018-04-26 Voith Patent Gmbh Hydraulic drive for a die cushion device of a press
DE102017129618B4 (en) * 2017-12-12 2021-03-18 Parker Hannifin EMEA S.à.r.l Die cushion device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19956717A1 (en) * 1998-11-25 2000-06-08 Kayaba Industry Co Ltd Hydraulic control appliance for hydraulic shovels etc. has arrangement to prevent load from falling without connected overload relief valve
US6220026B1 (en) * 1997-09-11 2001-04-24 Stabilus Gmbh Active control system
EP1143151A1 (en) * 1999-10-20 2001-10-10 Hitachi Construction Machinery Co., Ltd. Pipe breakage control valve device
DE10107139A1 (en) * 2001-02-15 2002-09-12 Poettinger Gmbh Geb Tractor-drawn plough with hydraulic actuators for setting machine parameters has central valve block as hydraulic control means mounted on plough and connectable to pressure source on tractor side

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100518768B1 (en) * 2003-05-28 2005-10-06 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 control device of hydraulic valve for load holding

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220026B1 (en) * 1997-09-11 2001-04-24 Stabilus Gmbh Active control system
DE19956717A1 (en) * 1998-11-25 2000-06-08 Kayaba Industry Co Ltd Hydraulic control appliance for hydraulic shovels etc. has arrangement to prevent load from falling without connected overload relief valve
EP1143151A1 (en) * 1999-10-20 2001-10-10 Hitachi Construction Machinery Co., Ltd. Pipe breakage control valve device
DE10107139A1 (en) * 2001-02-15 2002-09-12 Poettinger Gmbh Geb Tractor-drawn plough with hydraulic actuators for setting machine parameters has central valve block as hydraulic control means mounted on plough and connectable to pressure source on tractor side

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Werkzeugmaschine - Sicherheit - Hydraulische Pressen; Deutsche Fassung EN 693:2001+A1:2009 = Machine tools - Safety - Hydraulic presses = Machines-outils - Sécurité - Presses hydraliques", DEUTSCHE NORMEN. DIN NORM,, vol. EN 693, 1 November 2009 (2009-11-01), pages 58pp, XP009176414 *

Also Published As

Publication number Publication date
BR102012009138A2 (en) 2015-01-20
BR102012009138B1 (en) 2022-03-08
EP2514977A2 (en) 2012-10-24
DE102011116328A1 (en) 2012-10-25
EP2514977B1 (en) 2023-07-19

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