IT1244777B - HYDROELASTIC DRAWING DEVICE - Google Patents

HYDROELASTIC DRAWING DEVICE

Info

Publication number
IT1244777B
IT1244777B ITMI910662A ITMI910662A IT1244777B IT 1244777 B IT1244777 B IT 1244777B IT MI910662 A ITMI910662 A IT MI910662A IT MI910662 A ITMI910662 A IT MI910662A IT 1244777 B IT1244777 B IT 1244777B
Authority
IT
Italy
Prior art keywords
sheet
holding plate
cylinder
activated
hydraulic
Prior art date
Application number
ITMI910662A
Other languages
Italian (it)
Inventor
Friedrich Bernd Bielfeldt
Manfred Kreuzwieser
Original Assignee
Dieffenbacher Gmbh Maschf
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 Dieffenbacher Gmbh Maschf filed Critical Dieffenbacher Gmbh Maschf
Publication of ITMI910662A0 publication Critical patent/ITMI910662A0/en
Publication of ITMI910662A1 publication Critical patent/ITMI910662A1/en
Application granted granted Critical
Publication of IT1244777B publication Critical patent/IT1244777B/en

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
    • B21D24/02—Die-cushions

Landscapes

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

Abstract

L'invenzione concerne un dispositivo di imbutitura idroelastico per presse per l'imbutitura di parti sagomate in lamiera, con una piastra reggi-lamiera, che è sostenuta dall'attrezzo rispetto ai cilindri di pressione idraulici e tramite spine distanziatrici, e con un punzone di imbutitura, che è guidato movibile in direzione di imbutitura e poggia su almeno un pistone, che è guidato in un cilindro ed è sollecitabile con fluido idraulico. L'invenzione consiste nel fatto che a) è previsto un apparecchio di imbutitura idraulico con comando a più punti, corrispondentemente alla geometria del pezzo (7), in cui ad ogni punto di traguardo (20) è associato un cilindro di pressione (10) con spina distanziatrice (16) applicabile ad innesto, e b) il punzone di imbutitura (5) e/oppure la piastra reggi-lamiera (12) sono attivabili mediante un rispettivo circuito di comando idraulico (26, 27) corrispondentemente all'esistente campo di azione (21) del pezzo e al campo di azione (22) della piastra reggi-lamiera e c) almeno un'asta di pistone (3) del cilindro differenziale è attivabile dal punzone di imbutitura (5) e/oppure almeno due aste di pistone (3) del cilindro differenziale della piastra reggi-lamiera (12) in circuiti di guida (12 25) del cilindro principale sono attivabili per un comando idraulico della piastra reggi-lamiera (12) e del punzone di imbutitura (5).The invention relates to a hydroelastic drawing device for presses for drawing shaped parts in sheet metal, with a sheet-holding plate, which is supported by the tool with respect to the hydraulic pressure cylinders and by means of spacer pins, and with a deep drawing, which is guided movable in the drawing direction and rests on at least one piston, which is guided in a cylinder and can be solved with hydraulic fluid. The invention consists in the fact that a) a hydraulic deep-drawing device with multi-point control is provided, corresponding to the geometry of the piece (7), in which a pressure cylinder (10) is associated with each finishing point (20) with spacer pin (16) applicable to insertion, and b) the drawing punch (5) and / or the sheet-holding plate (12) can be activated by means of a respective hydraulic control circuit (26, 27) corresponding to the existing field of action (21) of the piece and to the field of action (22) of the sheet-holding plate and c) at least one piston rod (3) of the differential cylinder can be activated by the drawing punch (5) and / or at least two piston rods (3) of the differential cylinder of the sheet-holding plate (12) in the guide circuits (12 25) of the main cylinder can be activated for a hydraulic control of the sheet-holding plate (12) and the drawing punch (5).

ITMI910662A 1990-03-15 1991-03-12 HYDROELASTIC DRAWING DEVICE IT1244777B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4008377A DE4008377A1 (en) 1990-03-15 1990-03-15 Hydro-elastic deep drawing unit for sheet metal parts - improves prod. quality by using multipoint control via. several pressure cylinders

Publications (3)

Publication Number Publication Date
ITMI910662A0 ITMI910662A0 (en) 1991-03-12
ITMI910662A1 ITMI910662A1 (en) 1992-09-12
IT1244777B true IT1244777B (en) 1994-08-08

Family

ID=6402323

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI910662A IT1244777B (en) 1990-03-15 1991-03-12 HYDROELASTIC DRAWING DEVICE

Country Status (3)

Country Link
DE (1) DE4008377A1 (en)
FR (1) FR2659577A1 (en)
IT (1) IT1244777B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4112943A1 (en) * 1991-04-20 1992-10-22 Schuler Gmbh L DRAWING DEVICE IN THE PRESS TABLE OF A PRESS
CN102101363B (en) * 2010-12-24 2013-07-31 哈尔滨工业大学（威海） Multi-point forming device for plate
FR2991608B1 (en) * 2012-06-07 2014-06-20 Peugeot Citroen Automobiles Sa FLANK STRIPE FOR A STRIPPING PRESS INCLUDING A PRESS CUSHION ACCOMMODATION DIALING INDICATOR.
DE102013219819A1 (en) * 2013-09-30 2015-04-02 Allgaier Werke Gmbh Device for forming a workpiece from sheet metal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457765A (en) * 1966-09-30 1969-07-29 Elmer F Heiser Adapter cushion
DE3022844A1 (en) * 1980-06-19 1982-01-07 Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim Deep-drawing tool assembly - has sheet holder supporting drawing cushion working together with further hydraulically connected drawing cushion
DE3333687A1 (en) * 1983-09-17 1985-03-28 Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim Device on tools or presses for drawing sheet-metal shaped parts
DE3603107A1 (en) * 1986-02-01 1987-08-06 Uniplanung Reitter Blechformsy Die cushion, in particular for use in deep-drawing by means of single-action hydraulic drawing presses
US4745792A (en) * 1986-10-14 1988-05-24 Aluminum Company Of America Blankholder for a draw press
DE3807683A1 (en) * 1988-03-09 1989-09-21 Schuler Gmbh L Drawing apparatus in drawing stages of presses

Also Published As

Publication number Publication date
DE4008377A1 (en) 1991-09-19
FR2659577A1 (en) 1991-09-20
ITMI910662A1 (en) 1992-09-12
ITMI910662A0 (en) 1991-03-12

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Legal Events

Date Code Title Description
0001 Granted