ES2043923T3 - Dispositivo de mando hidraulico para el mando de accionamiento de un cilindro hidraulico de doble efecto. - Google Patents

Dispositivo de mando hidraulico para el mando de accionamiento de un cilindro hidraulico de doble efecto.

Info

Publication number
ES2043923T3
ES2043923T3 ES89104861T ES89104861T ES2043923T3 ES 2043923 T3 ES2043923 T3 ES 2043923T3 ES 89104861 T ES89104861 T ES 89104861T ES 89104861 T ES89104861 T ES 89104861T ES 2043923 T3 ES2043923 T3 ES 2043923T3
Authority
ES
Spain
Prior art keywords
pressure
hydraulic cylinder
changeover valve
face
supply
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
ES89104861T
Other languages
English (en)
Inventor
Eckehart Schulze
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of ES2043923T3 publication Critical patent/ES2043923T3/es
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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/002—Drive of the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
    • 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
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/161—Control arrangements for fluid-driven presses controlling the ram speed and ram pressure, e.g. fast approach speed at low pressure, low pressing speed at high pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Forging (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

EN UN DISPOSITIVO DE MANDO HIDRAULICO PARA EL CONTROL DE ACCIONAMIENTO DE UNOS HIDROCILINDROS DE ACCION DOBLE CON EMBOLOS DE ACCIONAMIENTO Y UNA MAYOR SUPERFICIE DE ACCIONAMIENTO Y UNA MENOR SUPERFICIE DE PARADA, ESTA PREVISTA UNA VALVULA REGULADORA DE ARRASTRE SINCRONICO COMO VALVULA CONTROLADORA DEL MOVIMIENTO Y DE LA DIRECCION QUE TRABAJE CON UN DETERMINADOR DE POSICIONES TEORICAS CONTROLABLES ELECTRICAMENTE Y UN RETROALIMENTADOR MECANICO DE POSICIONES REALES. EL APARATO SUMINISTRADOR DE PRESION PONE EN DISPOSICION DOS PRESIONES (PN, PH) DE VALOR DIFERENTE. ESTA PREVISTA UNA PRESION CONTROLADA DE UNA VALVULA CONMUTADORA QUE CONMUTA SEGUN NECESIDADES A LA ELEVADA PRESION DE SUMINISTRO CUANDO LA CARGA AUMENTA. ESTA PREVISTA UNA VALVULA CONMUTADORA SUPERFICIAL QUE ESTA CONTROLADA Y DESPUES QUE LA PRESION DE TAL VALVULA, CONMUTE A LA ELEVADA PRESION DE SUMINISTRO, INVIERTE LA SUPERFICIE DE LOS EMBOLOS A PARTIR DE LA DIFERENCIA DE FUNCIONAMIENTO DE LOS HIDROCILINDROS EN LA PRESION DE IMPULSION DE SUS EMBOLOS. CUANDO SE BAJE DE NUEVO LA FUERZA DE AVANCE, LA PRESION DE LA VALVULA CONMUTADORA REDUCE LA PEQUEÑA PRESION DE SUMINISTRO Y REDUCE DE NUEVO LA DIFERENCIA DE FUNCIONAMIENTO DE LOS HIDROCILINDROS.
ES89104861T 1988-04-29 1989-03-18 Dispositivo de mando hidraulico para el mando de accionamiento de un cilindro hidraulico de doble efecto. Expired - Lifetime ES2043923T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3814580A DE3814580A1 (de) 1988-04-29 1988-04-29 Hydraulische steuereinrichtung fuer die antriebssteuerung eines doppelt-wirkenden hydrozylinders

Publications (1)

Publication Number Publication Date
ES2043923T3 true ES2043923T3 (es) 1994-01-01

Family

ID=6353234

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89104861T Expired - Lifetime ES2043923T3 (es) 1988-04-29 1989-03-18 Dispositivo de mando hidraulico para el mando de accionamiento de un cilindro hidraulico de doble efecto.

Country Status (7)

Country Link
US (1) US5042362A (es)
EP (1) EP0339247B1 (es)
JP (1) JPH0696200B2 (es)
AT (1) ATE92804T1 (es)
BR (1) BR8901797A (es)
DE (2) DE3814580A1 (es)
ES (1) ES2043923T3 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59305912D1 (de) * 1993-02-02 1997-04-24 Putzmeister Maschf Verfahren zum fördern von vorzerkleinerten metallschrott oder dergleichen festkörper enthaltenden dickstoffen
DE4412224A1 (de) * 1994-04-09 1995-10-12 Graebener Pressensysteme Gmbh Presse für eine Kaltverformung von Metallwerkstücken
DE19829679A1 (de) * 1998-07-03 2000-01-05 Hartmann & Laemmle Hydraulische Antriebseinrichtung für eine Widerstands-Schweißmaschine
WO2000023209A1 (en) * 1998-10-21 2000-04-27 The Bronx Engineering Company Limited Roll forming line with punching tool
US6939120B1 (en) * 2002-09-12 2005-09-06 Komag, Inc. Disk alignment apparatus and method for patterned media production
US20040132301A1 (en) * 2002-09-12 2004-07-08 Harper Bruce M. Indirect fluid pressure imprinting
WO2004101263A1 (de) * 2003-05-16 2004-11-25 Bosch Rexroth Ag Antrieb für eine stanz- oder umformmaschine
JP2007502213A (ja) * 2003-05-16 2007-02-08 ボッシュ レックスロス アーゲー 流体圧駆動装置
CN100423934C (zh) * 2003-05-16 2008-10-08 博世力士乐股份有限公司 液压传动装置
JP4444620B2 (ja) * 2003-10-15 2010-03-31 ナブテスコ株式会社 油圧モータの自動変速機構
DE102004049247A1 (de) * 2004-10-01 2006-04-13 Aesculap Ag & Co. Kg Chirurgisches Instrument
CN101733968B (zh) * 2008-11-04 2014-01-29 昆山施耐特机械有限公司 气液压冲压机接触工件检测机构
CN102641979B (zh) * 2012-05-14 2014-07-16 浙江金瑞五金索具有限公司 可墩两头的冷墩机
CN102744345B (zh) * 2012-07-19 2014-06-11 浙江大学 锻造操作机缓冲缸液压***
CN105522094B (zh) * 2014-09-29 2018-07-31 天津市天锻压力机有限公司 基于中压电机驱动比例泵的恒功率控制方法
WO2018075347A1 (en) 2016-10-18 2018-04-26 Barnes Group Inc. Variable pulsating, gap control, auto-learning press cushion device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US946481A (en) * 1909-06-11 1910-01-11 Ellis Bryan Anderson Automatic change-valve for presses.
US2356366A (en) * 1942-12-04 1944-08-22 Hydraulic Machinery Inc Power transmission
CH459766A (de) * 1967-05-12 1968-07-15 Huegi Wilfried Hydraulische Presse mit einem doppelt wirkenden Presskolben
US3604884A (en) * 1969-04-24 1971-09-14 Essar Corp Electrode feed control for edm machine
FR2242234A1 (en) * 1973-08-27 1975-03-28 Experimentalmy Inst Kuznechno Hydraulic press with pulsating drive - high pressure feed line and outlet line connected to pulsator
AT328296B (de) * 1973-11-22 1976-03-10 Ruthner Industrieanlagen Ag Steuerung fur hydraulische pressen mit mehreren presskolben
DE2645849A1 (de) * 1976-10-11 1978-04-13 Osterwalder Ag Hydraulisch angetriebene presse
US4216702A (en) * 1978-05-01 1980-08-12 Eaton Yale Ltd. Pressure sensing regenerative hydraulic system
DE3521579A1 (de) * 1985-06-15 1986-12-18 J.M. Voith Gmbh, 7920 Heidenheim Steuerventil
DE3715261C1 (en) * 1987-05-08 1988-10-13 Schirmer Plate Und Siempelkamp Open-die forging press

Also Published As

Publication number Publication date
JPH0696200B2 (ja) 1994-11-30
DE58905209D1 (de) 1993-09-16
BR8901797A (pt) 1989-11-28
JPH01299800A (ja) 1989-12-04
EP0339247B1 (de) 1993-08-11
DE3814580A1 (de) 1989-11-09
ATE92804T1 (de) 1993-08-15
EP0339247A1 (de) 1989-11-02
US5042362A (en) 1991-08-27

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