DE50213933D1 - Method for automatic control of electro-hydraulic hand tools and arrangement therefor - Google Patents

Method for automatic control of electro-hydraulic hand tools and arrangement therefor

Info

Publication number
DE50213933D1
DE50213933D1 DE50213933T DE50213933T DE50213933D1 DE 50213933 D1 DE50213933 D1 DE 50213933D1 DE 50213933 T DE50213933 T DE 50213933T DE 50213933 T DE50213933 T DE 50213933T DE 50213933 D1 DE50213933 D1 DE 50213933D1
Authority
DE
Germany
Prior art keywords
electro
hydraulic
automatic control
hand tools
hydraulic hand
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.)
Expired - Lifetime
Application number
DE50213933T
Other languages
German (de)
Inventor
Gerhard Goldbach
Ralph Langholz
Manfred Waltersdorf
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.)
Rothenberger AG
Original Assignee
Rothenberger AG
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=7673696&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE50213933(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rothenberger AG filed Critical Rothenberger AG
Application granted granted Critical
Publication of DE50213933D1 publication Critical patent/DE50213933D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Manipulator (AREA)
  • Press Drives And Press Lines (AREA)
  • Operation Control Of Excavators (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Earth Drilling (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The control method uses a microprocessor (15) for controlling a pump motor (12) for a hydraulic pump (5) supplying the drive cylinder of the electro-hydraulic handtool, with detection of the pump motor current and the current drop after opening an over-pressure valve (9) inserted in the hydraulic fluid return flow path. The pump motor current is disconnected after the motor current drops below a stored current value, via a load switch (14). An Independent claim for an automatic control device for an electro-hydraulic handtool is also included.
DE50213933T 2001-02-12 2002-01-10 Method for automatic control of electro-hydraulic hand tools and arrangement therefor Expired - Lifetime DE50213933D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10106360A DE10106360C1 (en) 2001-02-12 2001-02-12 Automatic control method for electro-hydraulic handtool has microprocessor controlling pump motor via hydraulic system pressure

Publications (1)

Publication Number Publication Date
DE50213933D1 true DE50213933D1 (en) 2009-12-03

Family

ID=7673696

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10106360A Expired - Fee Related DE10106360C1 (en) 2001-02-12 2001-02-12 Automatic control method for electro-hydraulic handtool has microprocessor controlling pump motor via hydraulic system pressure
DE50213933T Expired - Lifetime DE50213933D1 (en) 2001-02-12 2002-01-10 Method for automatic control of electro-hydraulic hand tools and arrangement therefor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10106360A Expired - Fee Related DE10106360C1 (en) 2001-02-12 2001-02-12 Automatic control method for electro-hydraulic handtool has microprocessor controlling pump motor via hydraulic system pressure

Country Status (6)

Country Link
EP (1) EP1230998B1 (en)
AT (1) ATE446149T1 (en)
DE (2) DE10106360C1 (en)
DK (1) DK1230998T3 (en)
ES (1) ES2333105T3 (en)
PT (1) PT1230998E (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101754836B (en) * 2007-05-16 2014-06-11 古斯塔夫.克劳克有限责任公司 Method for the operation of a motor-driven hand-held pressing apparatus, and hand-held pressing apparatus
DE202009003197U1 (en) 2009-03-10 2010-05-06 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handleable drive device for a pressing device
DE202009003196U1 (en) 2009-03-10 2010-04-29 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handleable drive device for a pressing device
DE202009015515U1 (en) * 2009-11-17 2011-04-07 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Hand-held pressing device
DE102011011742A1 (en) * 2011-02-18 2012-08-23 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Method for automatically controlling an electro-hydraulic pressing tool
CN105170812A (en) * 2015-09-10 2015-12-23 宁波长壁流体动力科技有限公司 Oil way system of crimping machine and oil way control method thereof
EP3643422B8 (en) * 2018-10-25 2023-07-26 Emerson Professional Tools AG Pressing device for work pieces
EP3650175A1 (en) * 2018-11-06 2020-05-13 Von Arx AG Hydraulic pumping valve device for a press machine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254613A (en) * 1938-08-13 1941-09-02 Matthysse Irving Frederick Hydraulic press
DE2136782C2 (en) * 1971-07-23 1982-12-02 Novopress GmbH Pressen und Presswerkzeuge & Co KG, 4000 Düsseldorf Portable pressure fluid operated clamping tool
IT1238264B (en) * 1990-03-02 1993-07-12 DRILL SCREWDRIVER.
DE4446504C1 (en) * 1994-12-25 1996-03-28 Rothenberger Werkzeuge Masch Press tool for radial pressing of workpieces esp. fittings and pipes
DE29502032U1 (en) * 1995-02-08 1995-03-23 Rems-Werk Christian Föll und Söhne GmbH & Co, 71332 Waiblingen Press tool
DE19616975B4 (en) * 1995-04-29 2008-04-17 REMS-WERK Christian Föll und Söhne GmbH & Co. Method for testing the pressing force of a pressing tool
DE19535691C1 (en) * 1995-09-26 1997-01-23 Rothenberger Werkzeuge Masch Hydraulically driven hand tool
EP0824979B1 (en) * 1996-08-17 2001-10-24 NOVOPRESS GMBH PRESSEN UND PRESSWERKZEUGE & CO. KG. Process for connecting workpieces and pressing device therefore
JP4020218B2 (en) * 1998-01-07 2007-12-12 株式会社ジーエス・ユアサコーポレーション Electric tool
CH693444A5 (en) * 1998-10-02 2003-08-15 Arx Ag Press apparatus for joining workpieces.
DE19925504B4 (en) * 1999-03-02 2011-08-18 Gustav Klauke GmbH, 42855 System for the safe application of pressfittings, pressing tools and pressfittings
DE19938968A1 (en) * 1999-08-17 2001-03-01 Novopress Gmbh Manageable working device, in particular a pressing device

Also Published As

Publication number Publication date
ES2333105T3 (en) 2010-02-17
EP1230998A2 (en) 2002-08-14
PT1230998E (en) 2009-12-30
DE10106360C1 (en) 2002-07-11
EP1230998A3 (en) 2007-05-16
DK1230998T3 (en) 2009-12-21
EP1230998B1 (en) 2009-10-21
ATE446149T1 (en) 2009-11-15

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