EP1270103A3 - Hydraulische Arbeitsmaschine - Google Patents

Hydraulische Arbeitsmaschine Download PDF

Info

Publication number
EP1270103A3
EP1270103A3 EP02450122A EP02450122A EP1270103A3 EP 1270103 A3 EP1270103 A3 EP 1270103A3 EP 02450122 A EP02450122 A EP 02450122A EP 02450122 A EP02450122 A EP 02450122A EP 1270103 A3 EP1270103 A3 EP 1270103A3
Authority
EP
European Patent Office
Prior art keywords
rod
working space
side working
hydraulic
space
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
EP02450122A
Other languages
English (en)
French (fr)
Other versions
EP1270103A2 (de
EP1270103B1 (de
Inventor
Manfred Kurz
Thomas Reissig
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.)
Hoerbiger Automatisierungstechnik Holding GmbH
Original Assignee
Hoerbiger Automatisierungstechnik Holding 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 Hoerbiger Automatisierungstechnik Holding GmbH filed Critical Hoerbiger Automatisierungstechnik Holding GmbH
Publication of EP1270103A2 publication Critical patent/EP1270103A2/de
Publication of EP1270103A3 publication Critical patent/EP1270103A3/de
Application granted granted Critical
Publication of EP1270103B1 publication Critical patent/EP1270103B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Eine hydraulische Arbeitsmaschine weist einen unter Druck im kolbenseitigen Arbeitsraum (1) ein Werkzeug (2) im Arbeitsgang (Pfeil 3) bewegenden Arbeitszylinder (4) auf, der in dem bei der Werkzeugrückstellung (Pfeil 5) unter Druck stehenden stangenseitigen Arbeitsraum (6) einen gegenüber der Kolbenseite (1) stark verkleinerten Querschnitt (7) aufweist. Zum Not-Stop ist der Abfluß aus dem stangenseitigen Arbeitsraum (6) über das zugehörige Regelventil (8) absperrbar. Gleichzeitig wird der stangenseitige Arbeitsraum (6) über ein schnell schaltendes Not-Ventil (12) mit einer separaten Hydraulik-Hochdruckmediumquelle (13,15) verbunden, womit der Kompressibilität des Hydraulikmediums im Stangenraum entgegengewirkt und der Stop-Weg drastisch reduziert werden kann.
EP02450122A 2001-06-27 2002-05-22 Hydraulische Arbeitsmaschine Expired - Lifetime EP1270103B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT9972001 2001-06-27
AT9972001A AT410469B (de) 2001-06-27 2001-06-27 Hydraulische arbeitsmaschine

Publications (3)

Publication Number Publication Date
EP1270103A2 EP1270103A2 (de) 2003-01-02
EP1270103A3 true EP1270103A3 (de) 2005-10-05
EP1270103B1 EP1270103B1 (de) 2008-04-02

Family

ID=3683899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02450122A Expired - Lifetime EP1270103B1 (de) 2001-06-27 2002-05-22 Hydraulische Arbeitsmaschine

Country Status (3)

Country Link
EP (1) EP1270103B1 (de)
AT (1) AT410469B (de)
DE (1) DE50212001D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118905101B (zh) * 2024-10-09 2024-12-20 南通朗和精工科技有限公司 一种冲孔辅助装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542665A1 (de) * 1975-09-25 1977-05-05 Hartmann & Laemmle Kg Vorrichtung zur schlagfreien dekompression, insbesondere hydraulischer systeme
DE4416955A1 (de) * 1994-05-13 1994-12-01 Ulrich Keller Entlastungsventil
DE19711207A1 (de) * 1997-03-18 1998-09-24 Schuler Pressen Gmbh & Co Ziehvorrichtung für eine Presse
EP0967028A2 (de) * 1998-03-03 1999-12-29 Hoerbiger Hydraulik GmbH Hydraulische Presse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856583C2 (de) * 1978-12-22 1985-02-07 Alfred Dipl.-Ing. 1000 Berlin Ulrich Dreipunktanbauvorrichtung für einen Schlepper mit einem Heck- und/oder Frontanbaugerät
JPH03229003A (ja) * 1989-12-04 1991-10-11 Hitachi Constr Mach Co Ltd 油圧モータ駆動回路
JPH07119860A (ja) * 1993-10-20 1995-05-12 Nisshinbo Ind Inc 液圧方向制御装置及びこれを用いた液圧作動装置
JPH08121416A (ja) * 1994-10-24 1996-05-14 Tokyo Isuzu Jidosha Kk アキュムレータ付油圧装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542665A1 (de) * 1975-09-25 1977-05-05 Hartmann & Laemmle Kg Vorrichtung zur schlagfreien dekompression, insbesondere hydraulischer systeme
DE4416955A1 (de) * 1994-05-13 1994-12-01 Ulrich Keller Entlastungsventil
DE19711207A1 (de) * 1997-03-18 1998-09-24 Schuler Pressen Gmbh & Co Ziehvorrichtung für eine Presse
EP0967028A2 (de) * 1998-03-03 1999-12-29 Hoerbiger Hydraulik GmbH Hydraulische Presse

Also Published As

Publication number Publication date
AT410469B (de) 2003-05-26
EP1270103A2 (de) 2003-01-02
ATA9972001A (de) 2002-09-15
DE50212001D1 (de) 2008-05-15
EP1270103B1 (de) 2008-04-02

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