EP1138406A3 - A press with a hydraulic cushion and a system for controlling the force and pad position thereof - Google Patents

A press with a hydraulic cushion and a system for controlling the force and pad position thereof Download PDF

Info

Publication number
EP1138406A3
EP1138406A3 EP01500085A EP01500085A EP1138406A3 EP 1138406 A3 EP1138406 A3 EP 1138406A3 EP 01500085 A EP01500085 A EP 01500085A EP 01500085 A EP01500085 A EP 01500085A EP 1138406 A3 EP1138406 A3 EP 1138406A3
Authority
EP
European Patent Office
Prior art keywords
force
pad position
press
controlling
cushion
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
EP01500085A
Other languages
German (de)
French (fr)
Other versions
EP1138406B1 (en
EP1138406A2 (en
Inventor
Victoriano Esteban Grande
Ramon Domaica Lopez De Armentia
Aitor Ormaetxea Abad
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.)
Fagor Electrodomesticos SCL
Original Assignee
Fagor Electrodomesticos SCL
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 Fagor Electrodomesticos SCL filed Critical Fagor Electrodomesticos SCL
Publication of EP1138406A2 publication Critical patent/EP1138406A2/en
Publication of EP1138406A3 publication Critical patent/EP1138406A3/en
Application granted granted Critical
Publication of EP1138406B1 publication Critical patent/EP1138406B1/en
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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/04—Blank holders; Mounting means therefor
    • B21D24/08—Pneumatically or hydraulically loaded blank holders
    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/10—Devices controlling or operating blank holders independently, or in conjunction with dies
    • B21D24/14—Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Control Of Presses (AREA)

Abstract

A press with a hydraulic cushion with a system for controlling the force and pad position thereof, said cushion (2) having at least one hydraulic cylinder (3) with an upper chamber (4) and a lower chamber (5) and said control system comprising a control unit (6) and metering and control elements (7, 8, 9, 10, 11). Both the pad position and force of the cushion (2) are controlled by acting on each cylinder (3), using for this purpose a single control element (7) per cylinder (3), governed by the control unit (6), which regulates the oil input and output of the lower chamber (5) of each cylinder (3), the upper chamber (4) being connected to a pressure generator set (12).
EP01500085A 2000-03-30 2001-03-29 A press with a hydraulic cushion and a system for controlling the force and pad position thereof Expired - Lifetime EP1138406B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200000793A ES2190833B1 (en) 2000-03-30 2000-03-30 PRESS WITH HYDRAULIC CUSHION WITH FORCE AND POSITION CONTROL SYSTEM.
ES200000793 2000-03-30

Publications (3)

Publication Number Publication Date
EP1138406A2 EP1138406A2 (en) 2001-10-04
EP1138406A3 true EP1138406A3 (en) 2003-05-21
EP1138406B1 EP1138406B1 (en) 2005-07-27

Family

ID=8492951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01500085A Expired - Lifetime EP1138406B1 (en) 2000-03-30 2001-03-29 A press with a hydraulic cushion and a system for controlling the force and pad position thereof

Country Status (4)

Country Link
EP (1) EP1138406B1 (en)
AT (1) ATE300370T1 (en)
DE (1) DE60112154T2 (en)
ES (2) ES2190833B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336279A1 (en) * 2003-08-07 2005-03-03 Bosch Rexroth Ag Device for controlling the drawing process in a transfer press
EP2712688B1 (en) * 2012-09-28 2020-12-02 Siemens Aktiengesellschaft Die cushion drive and method for operating a die cushion drive
JP6702004B2 (en) * 2016-03-04 2020-05-27 日本製鉄株式会社 Method and apparatus for manufacturing hot stamped product
KR102316124B1 (en) 2017-09-08 2021-10-25 닛폰세이테츠 가부시키가이샤 Hot stamped article, its manufacturing method and manufacturing apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230673A1 (en) * 1981-10-21 1983-05-05 VEB Kombinat Umformtechnik "Herbert Warnke" Erfurt, DDR 5010 Erfurt Drawing cushion for presses
EP0173755A1 (en) * 1984-06-29 1986-03-12 L. SCHULER GmbH Drawing device in a press
JPS63273524A (en) * 1987-05-01 1988-11-10 Ishikawajima Harima Heavy Ind Co Ltd Control method for die cushion
EP0417754A2 (en) * 1989-09-12 1991-03-20 Maschinenfabrik Müller-Weingarten AG Mechanical or hydraulic press with drawing or pressing station for multiple stage press

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230673A1 (en) * 1981-10-21 1983-05-05 VEB Kombinat Umformtechnik "Herbert Warnke" Erfurt, DDR 5010 Erfurt Drawing cushion for presses
EP0173755A1 (en) * 1984-06-29 1986-03-12 L. SCHULER GmbH Drawing device in a press
JPS63273524A (en) * 1987-05-01 1988-11-10 Ishikawajima Harima Heavy Ind Co Ltd Control method for die cushion
EP0417754A2 (en) * 1989-09-12 1991-03-20 Maschinenfabrik Müller-Weingarten AG Mechanical or hydraulic press with drawing or pressing station for multiple stage press

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 076 (M - 800) 21 February 1989 (1989-02-21) *

Also Published As

Publication number Publication date
ES2244574T3 (en) 2005-12-16
DE60112154T2 (en) 2006-05-24
DE60112154D1 (en) 2005-09-01
ES2190833B1 (en) 2004-07-01
ATE300370T1 (en) 2005-08-15
EP1138406B1 (en) 2005-07-27
EP1138406A2 (en) 2001-10-04
ES2190833A1 (en) 2003-08-16

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