EP0876862B1 - Presse mit einer Werkstückzuführungeinrichtung mit einem integrierten Zuführmechanismus - Google Patents

Presse mit einer Werkstückzuführungeinrichtung mit einem integrierten Zuführmechanismus Download PDF

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Publication number
EP0876862B1
EP0876862B1 EP19980500075 EP98500075A EP0876862B1 EP 0876862 B1 EP0876862 B1 EP 0876862B1 EP 19980500075 EP19980500075 EP 19980500075 EP 98500075 A EP98500075 A EP 98500075A EP 0876862 B1 EP0876862 B1 EP 0876862B1
Authority
EP
European Patent Office
Prior art keywords
carriage
press
pieces
workpiece holder
workpiece
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
EP19980500075
Other languages
English (en)
French (fr)
Other versions
EP0876862A1 (de
Inventor
Pedro Aguirrezabal Ondarra
Bern Gillet
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 EP0876862A1 publication Critical patent/EP0876862A1/de
Application granted granted Critical
Publication of EP0876862B1 publication Critical patent/EP0876862B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers

Definitions

  • the present invention relates to a press with a device for feeding metal workpieces by means of a mobile feed carriage and a piece-holder coupled to said carriage to attach the pieces by means of pincers, the feeder being fitted with mechanical transmission devices for moving the pieces to the press die.
  • [DE-C-3233428 which represent the closest prior art, discloses a press with a workpiece feeder, being supported on the structure of the press, comprising a workpiece holder of the type suspended from a beam gripping the worpiece from above, a drive provided with a motor to feed the pieces in the advancing direction "X”, a mobile carriage cooperating to lift the workpiece holder in the vertical direction "Z”, and driven by a lifting device and its motor, said mobile carriage being the sole carriage of the workpiece feeder, raises the workpiece holder, the lifting device is secured to the structure of the press, and the drive to feed the pieces is incorporated into the carriage]
  • GB-1415379-A describes a piece feeder for transferring pieces to be formed in a press, comprising a structure with rails for the horizontal displacement of a feed carriage and an arm with a set of pincers to hold the pieces on the carriage, and a mechanism to move the arm vertically to the carriage and raise the pieces at the end of the carriage run.
  • DE-4200923-A describes a linear driver on two axes by means of a motor which turns a drive shaft with a gear wheel attached to it which meshes with a drive belt to move a displaceable carriage orthogonally to the direction of the shaft, in which the drive motor is secured in a structure.
  • Said linear drive has two moveable carriages and conveys the pieces in the press only on a horizontal plane.
  • the object of the invention is a forming press with a feeder of different sized metal workpieces, where the press plain is horizontal and is located at a given distance from the floor, having the feeder to lift the pieces to the press plain and then, move them toward the corresponding die, as it is defined in claim 1.
  • the feeder according to the invention has the advantage that it incorporates an only carriage, which lifts the workpiece holder to the level of the press plain, and so saving in the economic cost of the feeder.
  • the carriage incorporates the feed drive so as to provide a compact construction taking up a small space inside the press frame.
  • the sole carriage, of an elongated design in the direction orthogonal to the travel direction of the workpieces, and the reduced weight of the feeder components make it possible to cut the cost of the motor and the lifting carriage drive mechanism, the drive for the holder feed motion and the mechanism for opening and closing the piece holder tool.
  • the last two components are constructed independently so that the feed drive does not have to move the tool opening/closing mechanism, which is located adjacent to the single carriage so as not to take up additional space in the press, but supported by a beam of the press.
  • the feeder uses a single motor for the motion of the piece holder, the motor weight borne by the carriage is less than fifteen per cent of the total carriage weight, and the carriage is driven by a lifting device fixed on the press structure.
  • FIG. 1 is a side elevation of a workpiece feeder.
  • FIG. 2 is a plan view of the workpiece feeder in Figure 1.
  • the feeder 1 of the pieces P is supported by the support beam 2, which is held on the lateral columns 3 of the press, and transfers the workpieces P to the press plain 7 where the dies are located.
  • the feeder 1 comprises the lifting mechanism 4 driven by the motor 4', the carriage 6 raised by the mechanism 4 in the direction Z to the level of the die matrix on the plain 7 of the press, the workpiece holder 14 in the form of a horizontal frame where the pieces p are attached, the drive 9 supported on the carriage 6 for the movement of the holding bars 14 in the feed direction X of the pieces P , and the mechanism 17 to open/close the workpiece holder bar 14.
  • the support beam 2 is attached at a height greater than the press plain 7, and the device 4 and its motor 4' lift the carriage 6 in direction Z after picking up a piece P formed in a die, feeding it forward and down to place it in the following die, with which the piece holding bars 14 are also lifted.
  • the lifting device 4 has a shaft 20 with two gears 21 secured to it which drive the racks 22 attached to the vertical side 6a of the carriage.
  • the workpiece holder comprises two bars 14 arranged parallel in direction X to form a horizontal frame where the pieces P are each secured by two pairs of pincers 16.
  • the bars 14 close or open the separation between them in direction Y according to the size of the pieces P transferred to the press.
  • the carriage 6 is elongated in direction Y and is L-shaped in cross-section.
  • the drive 9 for advancing the holding bars 14 is supported on the carriage 6, and comprises the feed motor 9', the rotary shaft 11 transmitting the feed, the two gear drive wheels 12 attached to the ends of the shaft 11, and the two transmission belts 13 moving the holding bars in direction X.
  • Said transmission belts 13 are open and are coupled to each holding bar 14 by a pair of two-way rotary rollers. Each end 23 of the belt 13 is fixed to the associated bar 14 on each side of the carriage 6.
  • the workpiece holder 14 is coupled to the carriage 6 by two members 10 extended under the side 6 b of the carriage in direction X, one on each bar 14.
  • the mechanism 17 for opening/closing the frame of the holding bars 14 is supported on beam 2, and comprises the motor 17' and the closed transmission belt 19 which runs in both directions of axis Y between the two bars 14.
  • Each coupling member 10 has two guided skids 24 under the side 6b of the carriage, which slide in direction Y guided under the carriage 6, moving the bars 14 for their opening/closing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Claims (2)

  1. Presse, die über eine an der Struktur der Presse (2, 3) angebrachte Werkstückzuführungseinrichtung umfasst, bei der die Überführungsrichtungen der Werkstücke (p) "Z" und "X" lauten, und die folgendes umfasst: einen Werkstückträger, der einer horizontalen Ebene parallel zum Pressentisch (7) entsprechend liegt und zum Halten von Werkstücken (p) verschiedener Größen in Richtung "Y" ausfahrbar ist, mit einem Motor (9') zum Bewegen des Werkstückträgers (14, 16) und zum Zuführen der Werkstücke (p) in Zuführrichtung "X" versehene Antriebsmittel (9), einen verschiebbaren Schlitten (6), der beim Anheben des Werkstückträgers (14, 16) in vertikaler Richtung "Z" beteiligt ist und von einer Aufzugvorrichtung (4) samt Motor (4') betrieben wird, dadurch gekennzeichnet, dass der besagte verschiebbare Schlitten (6) der einzige Schlitten der Werkstückzuführungseinrichtung (1) ist und den transversal in Richtung "Y" ausfahrbaren Werkstückträger (14, 16) anhebt, die Auf zugvorrichtung ist an der Struktur (2, 3) der Presse gesichert, die Antriebsmittel (9) zur Zuführung der Werkstücke (p) umfassen einen einzigen Motor (9') und ein Transmissionsgerät (11, 12, 13), das in den Schlitten (6) integriert und auf ihm befestigt ist, und der Werkstückträger (14, 16) ist mittels zumindest einem Verbindungsglied (10) an den Schlitten (6) gekoppelt, welches mittels eines an einem Stützträger (2) der Struktur der Presse angebrachten motorbetriebenen Mechanismus (17) in Richtung "Y" betätig wird.
  2. Die Presse des Patentanspruchs 1, wobei der Hebeschlitten (6) in Richtung "Y" bewegt wird und der Werkstückträger (14, 16) von zwei Haltestangen (14) für die Werkstücke gebildet wird, die parallel unter beiden Enden des Hebeschlittens (6) durch geführt und individuell durch den Zuführantrieb (9) über einen entsprechenden offenen Antriebsriemen (13) und zwei Walzenpaare (15) angetrieben werden.
EP19980500075 1997-04-30 1998-03-24 Presse mit einer Werkstückzuführungeinrichtung mit einem integrierten Zuführmechanismus Expired - Lifetime EP0876862B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9700943 1997-04-30
ES9700943A ES2150331B1 (es) 1997-04-30 1997-04-30 Alimentador de piezas para una prensa con mecanismo de avance integrado.

Publications (2)

Publication Number Publication Date
EP0876862A1 EP0876862A1 (de) 1998-11-11
EP0876862B1 true EP0876862B1 (de) 2001-05-02

Family

ID=8299159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980500075 Expired - Lifetime EP0876862B1 (de) 1997-04-30 1998-03-24 Presse mit einer Werkstückzuführungeinrichtung mit einem integrierten Zuführmechanismus

Country Status (3)

Country Link
EP (1) EP0876862B1 (de)
DE (1) DE69800742T2 (de)
ES (1) ES2150331B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2174659B1 (es) * 1999-02-12 2003-12-16 Fagor S Coop Transfer con posicionamiento de las pinzas en una prensa multietapa.
DE102006041281B4 (de) * 2006-09-02 2008-09-11 H & T Produktions Technologie Gmbh Transfereinrichtung für Bearbeitungsmaschinen, insbesondere Pressen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153710B (de) * 1957-09-14 1963-09-05 Steuerungstechnik B Schlattere Zufuehrvorrichtung fuer Einzelwerkstuecke bei Pressen fuer die spanlose Verformung von Werkstuecken
FR1244918A (fr) * 1959-06-29 1960-11-04 Chausson Usines Sa Machine pour le transfert de pièces d'ouvrage entre deux postes de travail
IT950545B (it) * 1972-01-27 1973-06-20 Norda Spa Dispositivo automatico di alimen tazione e scarico per macchine operatrici in genere
GB2006077B (en) * 1977-10-21 1982-01-13 Schuler Gmbh L Workpiece conveyor device
JPS58176031A (ja) * 1982-04-08 1983-10-15 Aida Eng Ltd 素材等の搬送装置
DE3233428C1 (de) * 1982-09-09 1993-04-29 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Beschickungs- und Entnahmevorrichtung insbesondere an Pressen
DE4200923A1 (de) * 1991-01-23 1992-08-06 Wilfried Strothmann Zweiachsiger linearantrieb
US5483876A (en) * 1993-12-21 1996-01-16 Trantek, Incorporated Workpart transfer mechanism for stamping press

Also Published As

Publication number Publication date
DE69800742D1 (de) 2001-06-07
ES2150331A1 (es) 2000-11-16
DE69800742T2 (de) 2002-05-29
EP0876862A1 (de) 1998-11-11
ES2150331B1 (es) 2001-04-01

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