EP0304905A3 - Hydraulic press - Google Patents

Hydraulic press Download PDF

Info

Publication number
EP0304905A3
EP0304905A3 EP88113839A EP88113839A EP0304905A3 EP 0304905 A3 EP0304905 A3 EP 0304905A3 EP 88113839 A EP88113839 A EP 88113839A EP 88113839 A EP88113839 A EP 88113839A EP 0304905 A3 EP0304905 A3 EP 0304905A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic press
tensioning
press
dynami
featured
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.)
Withdrawn
Application number
EP88113839A
Other languages
German (de)
French (fr)
Other versions
EP0304905A2 (en
Inventor
Horst Baltschun
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.)
Maschinenfabrik Lauffer GmbH and Co KG
Original Assignee
Maschinenfabrik Lauffer GmbH and Co KG
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 Maschinenfabrik Lauffer GmbH and Co KG filed Critical Maschinenfabrik Lauffer GmbH and Co KG
Publication of EP0304905A2 publication Critical patent/EP0304905A2/en
Publication of EP0304905A3 publication Critical patent/EP0304905A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/20—Applications of drives for reducing noise or wear
    • 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
    • B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
    • 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
    • B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
    • B30B15/245—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam using auxiliary cylinder and piston means as actuating members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)

Abstract

Es wird eine hydraulische Presse vorgeschlagen, die vor, während und nach dem Arbeitshub ständig vorge­ spannt ist, so daß von einer dynamischen Vorspannung der Presse gesprochen werden kann. Durch diese dynami­ sche Vorspannung wird ein ständiges Spannen und Ent­ spannen, wie dies bei herkömmlichen Pressen auftritt vermieden, wodurch sich eine Energieeinsparung und eine Schnittschlagdämpfung ergeben. A hydraulic press is proposed that constantly featured before, during and after the work stroke is tensioned, so that from a dynamic bias can be spoken to the press. Through this dynami pre-tensioning becomes constant tensioning and unwinding clamp, as occurs with conventional presses avoided, thereby saving energy and Cut shock absorption result.

EP88113839A 1987-08-26 1988-08-25 Hydraulic press Withdrawn EP0304905A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3728418 1987-08-26
DE19873728418 DE3728418A1 (en) 1987-08-26 1987-08-26 DYNAMIC PRESSURE PRESSURE PRESS

Publications (2)

Publication Number Publication Date
EP0304905A2 EP0304905A2 (en) 1989-03-01
EP0304905A3 true EP0304905A3 (en) 1989-09-20

Family

ID=6334491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88113839A Withdrawn EP0304905A3 (en) 1987-08-26 1988-08-25 Hydraulic press

Country Status (3)

Country Link
US (1) US4890475A (en)
EP (1) EP0304905A3 (en)
DE (1) DE3728418A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112639B2 (en) * 1989-06-28 1995-12-06 義一 久世 Die set type automatic press machine manufacturing method
AT399785B (en) * 1991-05-06 1995-07-25 Hoerbiger Fluidtechnik Gmbh SIMULTANEOUS MEASURING DEVICE
DE19642635A1 (en) * 1996-03-28 1997-10-02 Horst Baltschun Hydraulically or mechanically driven ram of fine-blanking press
DE19643396B4 (en) * 1996-10-21 2008-09-11 Dieffenbacher Gmbh + Co. Kg Hydraulic control device
DE10005023C2 (en) * 2000-02-04 2002-11-21 Feintool Internat Holding Ag L Precision cutting press
DE10116917A1 (en) * 2001-04-05 2002-10-10 Kramski Gmbh Guide device for machine tools
DE102007040286A1 (en) * 2007-08-24 2009-02-26 Wieber, Christian, Dipl.-Ing.(FH), Batu Caves Hydraulic press
US7765844B2 (en) * 2007-12-20 2010-08-03 Intergrated Industrial Systems, Inc. Prestressed rolling mill housing assembly with improved operational features
US20160144588A1 (en) * 2013-06-19 2016-05-26 Bruderer Ag Method for warping the machine bed and/or the press ram of a punching press and punching press
CN103521593A (en) * 2013-09-26 2014-01-22 芜湖环球汽车配件有限公司 Automatic blanking die of sheet metal part
CN104085128B (en) * 2014-06-30 2015-11-25 南京迪威尔高端制造股份有限公司 Combined bidirectional prestressing force framework for support
CN104226694B (en) * 2014-09-30 2017-02-15 中色科技股份有限公司 Cast rolling machine prestress control system
DE102015105400B4 (en) * 2015-04-09 2022-06-02 Langenstein & Schemann Gmbh Forming machine, in particular forging hammer, and method for controlling a forming machine
CN106015124A (en) * 2016-07-22 2016-10-12 中聚信海洋工程装备有限公司 Hydraumatic fast forging machine set capable of being supplied with pressure superimposedly by hydraulic pumps and high pressure accumulator

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2512822A1 (en) * 1975-03-22 1976-09-30 Horst Schenk Cutting impact damping in presses - has piston cylinder unit arranged so that hydraulic fluid is expelled from cylinder to effect damping
DE2248024B2 (en) * 1972-09-29 1976-12-09 L. Schuler GmbH, 7320 Göppingen CUTTING IMPACT CUSHIONING DEVICE ON CUTTING PRESSES
DE2739340A1 (en) * 1977-09-01 1979-03-15 Smg Sueddeutsche Maschinenbau HYDRAULICALLY DRIVEN PRESS
DE2824176A1 (en) * 1978-06-02 1979-12-06 Thyssen Industrie Hydraulic press with servo-hydraulic ram movement control - has individual cylinders with chambers for press working force, and opposite force
DE3039667A1 (en) * 1980-10-21 1982-05-19 Hans 4320 Hattingen Schoen Hydraulic stamping press safety operating control - uses damping cylinders for initial raising of ram with simultaneous function testing
DE3233860A1 (en) * 1982-09-11 1984-03-15 Schoen, Hans, 4320 Hattingen Device for holding parallel the slide on hydraulic punching presses

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR856289A (en) * 1939-02-22 1940-06-10 Outil Mec Usinage Artillerie High power hydraulic press
DE1858838U (en) * 1960-01-11 1962-09-20 Erwin Baas HYDRAULIC MULTI-PISTON PRESS OD. DGL. WITH PISTON-LIKE GUIDE COLUMNS.
AT286070B (en) * 1969-04-22 1970-11-25 Haemmerle Ag Maschf Sheet metal working machine
CA959309A (en) * 1972-10-24 1974-12-17 Igor G. Fedosenko High-speed counterstroke hammer
SU548352A1 (en) * 1974-12-11 1977-02-28 Московский Авиационный Технологический Институт Имени К.Э.Циалковского Hydraulic hammer
DE2852303A1 (en) * 1978-12-02 1980-06-04 Schloemann Siemag Ag FORGING PRESS, IN PARTICULAR FREE-FORMING FORGING PRESS, UNDERFLOOR
DE2901768A1 (en) * 1979-01-18 1980-07-24 Schoen & Cie Gmbh Stroke direction and movement control for press - uses cam-operated limit switches operated via press lever in conjunction with stroke sensor
DE2905559A1 (en) * 1979-02-14 1980-08-28 August Laepple Gmbh & Co Werkz Split press tool finishing device - has ram sliding on two columns engaged by adjustable stops at plunger ends
DE3112393C2 (en) * 1981-03-28 1985-08-08 Hans 4240 Emmerich Feldhaus Hydraulic press and a method for its operation
US4809535A (en) * 1987-06-15 1989-03-07 Williams-White Company Hydraulic press and process for molding or forming an article including incrementally variable positioned slide

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2248024B2 (en) * 1972-09-29 1976-12-09 L. Schuler GmbH, 7320 Göppingen CUTTING IMPACT CUSHIONING DEVICE ON CUTTING PRESSES
DE2512822A1 (en) * 1975-03-22 1976-09-30 Horst Schenk Cutting impact damping in presses - has piston cylinder unit arranged so that hydraulic fluid is expelled from cylinder to effect damping
DE2739340A1 (en) * 1977-09-01 1979-03-15 Smg Sueddeutsche Maschinenbau HYDRAULICALLY DRIVEN PRESS
DE2824176A1 (en) * 1978-06-02 1979-12-06 Thyssen Industrie Hydraulic press with servo-hydraulic ram movement control - has individual cylinders with chambers for press working force, and opposite force
DE3039667A1 (en) * 1980-10-21 1982-05-19 Hans 4320 Hattingen Schoen Hydraulic stamping press safety operating control - uses damping cylinders for initial raising of ram with simultaneous function testing
DE3233860A1 (en) * 1982-09-11 1984-03-15 Schoen, Hans, 4320 Hattingen Device for holding parallel the slide on hydraulic punching presses

Also Published As

Publication number Publication date
EP0304905A2 (en) 1989-03-01
DE3728418C2 (en) 1990-10-25
US4890475A (en) 1990-01-02
DE3728418A1 (en) 1989-03-09

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