EP0887127B1 - Dispositif d'étirage dans une presse - Google Patents

Dispositif d'étirage dans une presse Download PDF

Info

Publication number
EP0887127B1
EP0887127B1 EP98111266A EP98111266A EP0887127B1 EP 0887127 B1 EP0887127 B1 EP 0887127B1 EP 98111266 A EP98111266 A EP 98111266A EP 98111266 A EP98111266 A EP 98111266A EP 0887127 B1 EP0887127 B1 EP 0887127B1
Authority
EP
European Patent Office
Prior art keywords
pressure
press
collar
pressure cheek
drawing apparatus
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
EP98111266A
Other languages
German (de)
English (en)
Other versions
EP0887127A1 (fr
Inventor
Siegfried Baur
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.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP0887127A1 publication Critical patent/EP0887127A1/fr
Application granted granted Critical
Publication of EP0887127B1 publication Critical patent/EP0887127B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B21D24/10—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

Definitions

  • the invention relates to a drawing apparatus in a press or the like.
  • the Drawing device has a one-piece or multi-piece sheet holder and at least a pressure cylinder to hold when pulling and ejecting the molded Workpiece.
  • EP-A-0 673 695 shows a drawing apparatus according to the preamble of claim 1 in a press with one of the pressure cylinders loaded sheet metal holder. Locking means are provided which are indirectly via a Articulated pull act on the pressure cheek supporting the sheet metal holder. When signaling An "intermediate stop" at any time during the forming process becomes an immediate one Braking the plunger and the attached upper part of the tool causes, and it will the locking means activated to hold the pulling device in an intermediate stop position.
  • FIG. 1 shows the press table 1 of a press, for example an installation press the tools and gripping tools are retracted or set up.
  • a lower tool part 2 is placed and locked.
  • a moving up and down Ram 3 of the press is attached to an upper tool part 4.
  • the lower part of the tool has a sheet holder 5, the edge holding an inserted sheet and the Ejecting the sheet then formed is used.
  • the sheet metal holder is on his Underside of pressure pin 31 acts on the one in the press table and lifting lowerable pressure cheek 6 are supported.
  • the pressure cheek is part of a pulling device, who is positioned with a total of 7.
  • drawing cylinders 8 At least one Ejector or feeder cylinder 9 and a stop device 10 for the Ramp-up stop, pressure accumulator, pressure lines, valves u.
  • the piston rod led downwards 11 of the ejector cylinder is partially designed as a spindle on which one Spindle nut 12 is rotatably placed.
  • the spindle nut acts as a stop with one part 13 fixed to the frame so as to limit the ejector movement upwards.
  • the figures 2 and 3 show a drawing apparatus 7 with the pressure cheek raised 6, FIG. 2, and the pressure cheek 6, FIG. 3, which is locked in an intermediate position , the press table 1 has two motors 16, each fastened via a bearing block 15, which act on each spindle 17. The rotation of the spindles cause a change in their extended length.
  • the spindles can withstand tensile loads and go into their respective end areas a fret 18 over. These covenants cooperate with attacks 19, which are about Tabs 20 are attached to the pressure cheek. According to graphic representation the stop device 10 shown on the left, the pressure cheek 6 on an unwanted Start-up, prevent the stop device 10 shown on the right from lowering.
  • the figures 4 and 5 have stop devices 10 which are subjected to pressure Spindles 21.
  • the stops 19 moved with the pressure cheek 6 are against the Collars 18 can be laid, wherein according to FIG. 5 a movement of the pressure cheek when the Press is prevented.
  • FIGS. 6 and 7 show stop devices 10 in mixed form. While the Spindle 17 shown in the picture on the left can be loaded according to the embodiment according to 2 and 3, the spindle 21 shown in the picture on the right is pressure-resistant Fig. 4 and 5. Spindles 17 and 21 together prevent the start-up Pressure cheek 6.
  • FIGS. 8 and 9 A further solution is illustrated in FIGS. 8 and 9.
  • the pressure cheek 6 is by means of ejector cylinder 9 after the plunger 3 has fallen into the upper one Can be brought into the position in which a sheet metal part is again inserted into the tool 2, 4 on the sheet metal holder 5 can be placed.
  • the height of the pressure beam 6 and with this the height of the Sheet holder 5 is set in a known manner via a stop 22 and an in a frame-fixed part 13 rotatably driven spindle sleeve 23.
  • the stop 22 is located itself at the end region of the piston rod 11 of the ejector cylinder which is guided downwards 9.
  • the spindle sleeve 23 is more or less far down by means of the motor movable from the frame part.
  • Stop 22 and spindle sleeve 23 are now also according to the invention for the Avoid running up of pressure cheek 6 and sheet metal holder 5 when the press is at a standstill be used.
  • a first motor 24 is used for the adjustment of the altitude, which is operated via e.g. a first Bevel gear 25, an additional first clutch 26 and another bevel gear 27 acts on a worm shaft 28.
  • the one attached to the worm shaft Auger 32 cooperates with the spindle sleeve 23 in a rotating sense.
  • a second motor 29 is provided for high-speed running of the spindle sleeve first and second bevel gear 25, 27 and a second clutch 30 on the Worm shaft 28 acts.
  • the clutches can be switched optionally in the sense the loading of the motors 25.

Landscapes

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

Claims (3)

  1. Appareil d'emboutissage d'une presse comprenant un dispositif de verrouillage destiné à bloquer le mouvement d'un serre-flan pendant un arrêt intermédiaire, dans lequel le serre-flan peut être sollicité par un ou, éventuellement, plusieurs vérins de pression (8, 9), caractérisé en ce que, dans un cas, les moyens de blocage (10) agissent directement sur la joue de ' pression (6) qui supporte le serre-flan (5) et que, dans l'autre cas, ils agissent indirectement sur la joue de pression (5), par l'intermédiaire d'un mécanisme à joints articulés ou à engrenages (24, 25, 26, 27, 28, 29, 30), et en ce que les moyens de blocage (10) sont en outre pourvus de deux butées fixes (19) prévues sur la joue de pression (5), ou sur des pièces (20) entraínées par cette joue, et de deux vis motorisées (17, 21), dont une première vis (17) est pourvue, dans sa région d'extrémité éloignée du moyen d'entraínement (16), d'une embase (18) qui peut s'appliquer derrière une première butée fixe (19) lors d'un mouvement ascendant et dont la deuxième vis (17) est pourvue, dans sa région d'extrémité éloignée du moyen d'entraínement (16), d'une embase (18) qui peut s'appliquer derrière une deuxième butée fixe (19) lors d'un mouvement descendant.
  2. Appareil d'emboutissage selon la revendication 1, caractérisé en ce que les moyens d'entraínement (16) prévus pour les vis (17) sont disposés, relativement aux embases (18), sur les côtés qui sont éloignés des butées fixes (19).
  3. Appareil d'emboutissage selon la revendication 2, caractérisé en ce que les moyens d'entraínement (16) prévus pour les vis (21) sont disposés, relativement aux butées (18), sur les côtés dirigés vers les butées fixes (19).
EP98111266A 1997-06-25 1998-06-18 Dispositif d'étirage dans une presse Expired - Lifetime EP0887127B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19726928A DE19726928A1 (de) 1997-06-25 1997-06-25 Ziehapparat
DE19726928 1997-06-25

Publications (2)

Publication Number Publication Date
EP0887127A1 EP0887127A1 (fr) 1998-12-30
EP0887127B1 true EP0887127B1 (fr) 2001-10-31

Family

ID=7833578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98111266A Expired - Lifetime EP0887127B1 (fr) 1997-06-25 1998-06-18 Dispositif d'étirage dans une presse

Country Status (4)

Country Link
US (1) US6089073A (fr)
EP (1) EP0887127B1 (fr)
DE (2) DE19726928A1 (fr)
ES (1) ES2167041T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6301949B1 (en) * 2000-03-24 2001-10-16 The Boeing Company Press for forming workpieces
WO2002087801A1 (fr) * 2001-04-27 2002-11-07 Schuler Pressen Gmbh & Co.Kg Dispositif d'emboutissage hydraulique
US9103375B2 (en) 2012-12-14 2015-08-11 Aktiebolaget Skf Cartridge bearing assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240630A (en) * 1939-08-18 1941-05-06 French Oil Mill Machinery Safety device for presses
US2357508A (en) * 1942-10-01 1944-09-05 Hydraulic Dev Corp Inc Hydraulic press
US2653560A (en) * 1951-04-28 1953-09-29 Budd Co Press safety jack
DE3505984A1 (de) * 1985-02-21 1986-08-21 L. Schuler GmbH, 7320 Göppingen Ziehapparat an pressen
DE3933806A1 (de) * 1989-10-10 1991-11-14 Schuler Gmbh L Ziehapparat in ziehstufen von pressen
DE4403954B4 (de) * 1994-02-08 2006-02-02 Müller Weingarten AG Mehrpunktzieheinrichtung von mechanischen und hydraulischen Pressen
DE4405909A1 (de) * 1994-02-24 1995-08-31 Erfurt Umformtechnik Gmbh Verfahren und Schaltungsanordnung zum Unterbrechen und Fortführen des Ziehprozesses an zweifachwirkenden Pressen, insbesondere hydraulischen Pressen

Also Published As

Publication number Publication date
EP0887127A1 (fr) 1998-12-30
US6089073A (en) 2000-07-18
ES2167041T3 (es) 2002-05-01
DE19726928A1 (de) 1999-01-07
DE59801923D1 (de) 2001-12-06

Similar Documents

Publication Publication Date Title
DE3110221C2 (de) Revolverstanzpresse
DE3844117C2 (fr)
EP1511628B1 (fr) Station de remplacement pour des manchons de machines a imprimer
DE102014113211B4 (de) Rundläuferpresse
DE4112656A1 (de) Zieheinrichtung in einer presse zum ziehen von blechformteilen
WO2004110871A1 (fr) Station de travail et machine d'emballage
EP0647488A1 (fr) Presse, presse à plusieurs étages ou machine de déformation pareille
EP0901848A1 (fr) Presse de transfert avec changement d' outil automatique
EP0887127B1 (fr) Dispositif d'étirage dans une presse
DE3010631A1 (de) Presse
DE2806987B2 (de) Vorrichtung zum Manipulieren von Werkstücken
DE3135266C2 (de) Schneidpresse zum Herausschneiden oder -trennen von Teilen aus einer Werkstücktafel
DE3637488C1 (de) Oberer Werkzeugtraeger fuer eine Stanze od.dgl.
DE4311154A1 (de) Verfahren und Einrichtung zur Finishbearbeitung von tuschierten Werkzeugen
DE4310057A1 (de) Vorrichtung zum Transfer von Werkstücken durch eine Folge von Bearbeitungsstationen
EP0838277A1 (fr) Machine de dressage pour dresser les tÔles avant l'entrée d'une presse
EP1186362A1 (fr) Dispositif de laminage et profilage de pièces annulaires ou en forme de disque
DE19917472C1 (de) Antriebseinrichtung für einen Streckhelfer zum mechanischen Verformen einer erwärmten Kunststoffolie oder -platte
DE10063154B4 (de) Schmiedepresse mit Stellvorrichtung auf Matrizenseite
EP0891251B1 (fr) Presse a plateau hydraulique
EP0030346B1 (fr) Dispositif de rétraction de housses rétractables enveloppant des piles d'objets
DE1431508A1 (de) Steuermechanismus fuer eine Werkstueckzufuehrvorrichtung
DE2636718C2 (de) Vorrichtung zum Pressen und Vulkanisieren von Fördergurten
DE3243087A1 (de) Abroll-streck-zufuehreinrichtung
WO2002085626A1 (fr) Dispositif et procede d'interchangeabilite d'encriers et de racles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990618

AKX Designation fees paid

Free format text: DE ES FR GB IT SE

17Q First examination report despatched

Effective date: 19990729

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCHULER PRESSEN GMBH & CO. KG

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

REF Corresponds to:

Ref document number: 59801923

Country of ref document: DE

Date of ref document: 20011206

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020107

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2167041

Country of ref document: ES

Kind code of ref document: T3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020611

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020622

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020626

Year of fee payment: 5

Ref country code: ES

Payment date: 20020626

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030618

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030619

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030619

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030618

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040227

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050618

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100610

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59801923

Country of ref document: DE

Effective date: 20120103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120103