EP0920933B1 - Verbesserte Stanzvorrichtung für Blechteile - Google Patents

Verbesserte Stanzvorrichtung für Blechteile Download PDF

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Publication number
EP0920933B1
EP0920933B1 EP98203435A EP98203435A EP0920933B1 EP 0920933 B1 EP0920933 B1 EP 0920933B1 EP 98203435 A EP98203435 A EP 98203435A EP 98203435 A EP98203435 A EP 98203435A EP 0920933 B1 EP0920933 B1 EP 0920933B1
Authority
EP
European Patent Office
Prior art keywords
punching
panel
work table
bearing structure
punching machine
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
EP98203435A
Other languages
English (en)
French (fr)
Other versions
EP0920933A2 (de
EP0920933A3 (de
Inventor
Gianfranco Venturini
Flavio Zaccaria
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.)
Salvagnini Italia SpA
Original Assignee
Salvagnini Italia SpA
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 Salvagnini Italia SpA filed Critical Salvagnini Italia SpA
Publication of EP0920933A2 publication Critical patent/EP0920933A2/de
Publication of EP0920933A3 publication Critical patent/EP0920933A3/de
Application granted granted Critical
Publication of EP0920933B1 publication Critical patent/EP0920933B1/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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B21D28/265—Perforating, i.e. punching holes in sheets or flat parts with relative movement of sheet and tools enabling the punching of holes in predetermined locations of the sheet, e.g. holes punching with template
    • 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
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/246—Selection of punches
    • 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 refers to an improved punching machine for metal sheet panels. (see for example US-A-4 503 741).
  • punching machines for metal sheet panels generally comprise a work table for a panel to be punched, a "C" shape or an "arched” annular bearing structure, having a groove where the work table passes through and to which a punching head is mounted, and moving means (manipulator) for the panel to be punched on the work table to hold the panel at one of its sides and to bring it in correspondence of the punching head.
  • the manipulator Since in general the panel must be punched in points even very distant from each other, for example along all the sides of the same, the manipulator must also have an extended stroke in order to be able to bring all those points of the panel that have to be punched in correspondence ofthe punching head. According to the dimension of the panel such stroke can be so extended to make it necessary to carry out the movement of the panel in successive stages, getting hold of the panel, moving it by a certain length, releasing it, bringing the manipulator back to its original position, getting again hold of the panel and then going on with the movement of the same. Obviously, this slows machining time considerably.
  • object of the present invention has been to provide a punching machine that would solve the problem pointed out above.
  • FIGs 1 to 7 there is shown a punching machine according to a first embodiment of the present invention.
  • Such punching machine comprises a work table 1 for the panels to be machined, and a bearing structure 2 that can have a substantially close arched annular shape, as in Figures 1 to 6, or that can be made of two substantially facing "C" shape or "arched" structures 2', 2", as in Figure 7.
  • the bearing structure 2 has a central groove 3 through which the work table 1 passes.
  • Each punching head comprises two overlapping parallelepiped blocks 5 and 6, the first known as punch holder block, fixed to the upper part of the bearing structure 2 and provided with one or more punching tools, the second, known as matrix holder block, fixed instead to the lower part of the bearing structure 2 and below the work table 1 and provided with respective matrix dies for the punching tools.
  • the two punching heads are of the "multi-press" type, that is, each one provided in the punch holder block 5 with a plurality of punching tools 7 (small tools), 8 (large tools) having variable dimensions and operable independently one from another by means of respective actuator pistons 9, 10 and, in the matrix holder block 6, a respective plurality of matrix dies 11 (for small tools), 12 (for large tools).
  • Punching heads of this type already known and described for example in EP-A-0028588, allow to perform a plurality of punching operations without the need to substitute the punching tools.
  • the punching heads could be of the "mono-press" type, each one provided with one single actuator piston in the punch holder block, and either provided or not with systems for the quick change of the punch-matrix set. This is not essential to the purpose of the present invention.
  • the punching machine comprises two manipulators 13, 14 located in correspondence of the two ends of the work table 1.
  • Each manipulator 13,14 comprises a first carriage 15 that is movable along slide guides 16 in a direction indicated by Y in Figure 1 perpendicular to the bearing structure 2, and a second carriage 17 movable instead along a direction indicated by X in the same Figure, parallel to the bearing structure 2.
  • Pinchers 18 suitable to hold a metal sheet panel P in correspondence of an edge of the same are associated to the carriage 17.
  • a panel to be punched P1 is fed either by an operator or automatically on the work table 1, in the direction indicated by A in Figure 2 (that is indifferently from the right or from the left) in correspondence with the manipulator 13, while the manipulator 14 is engaged in the handling of a previous panel P0 for the machining of the same on behalf of the punching heads 4', 4".
  • the manipulator 13 holds one back edge of the panel P1 with its pincers 18.
  • the manipulator 14 moves forward along the guides 16 and it gets hold of the fore edge of panel P1 by its pincers 18; therefore the two manipulators exchange panel P1 between themselves.
  • the manipulator 13 releases panel P1 and moves back along the guides 16, getting back to the position shown in Figure 2. While the manipulator 14 moves the panel P1 in the various positions necessary to carry out machining of the edge or, more in general, of the back half of the same, the manipulator 13 is ready to receive a new panel, and the cycle is thus repeated.
  • the two punching heads 4', 4" can be fixed to the arch 2. It is also possible to provide for a plurality of fixing positions for the punching heads 4', 4" in the arch 2, so that during the assembly of the machine it is possible to vary the mutual distance between heads.
  • the two heads can be mounted in a sliding way along the direction X, by means sliders 50 and guides 51 and, for example, adjusting screws 52, in order to be able to adjust the mutual distance as a function of the dimensions of the panel to be punched.
  • FIG. 7 A variation of the previously described punching machine is shown in Figure 7.
  • the bearing structure 2 is not a closed arch but it is formed of two arches 2', 2"
  • the two arches 2', 2" can be preferably made become mobile with regards to a base 100 of the punching machine, in order to be able to adjust the mutual distance between the two punching heads 4', 4".
  • FIGs from 8 to 10 there is shown a punching machine according to a second embodiment of the present invention.
  • the punching machine comprises a single manipulator 13, and it is provided with a rotator 60 for the panel to be machined.
  • the sole manipulator 13, without the rotator 60 would in fact not allow to carry out machining in correspondence of the edge of the panel that is engaged with the pinchers 18.
  • the rotator 60 instead allows to rotate the panel once all the punching operations on the free edge of the panel have been completed, and therefore to be able to carry out the punching also on the other edge of the panel.
  • Figure 9 the operation of rotation of the panel P on behalf of the rotator 60 is shown.

Claims (8)

  1. Stanzvorrichtung für Metallblechteile, welche einen Arbeitstisch (1 ), eine Lagerkonstruktion (2;2',2") für Stanzeinheiten (4',4"), wobei die Lagerkonstruktion (2;2',2") eine Ausnehmung (3) hat, an der der Arbeitstisch (1) durchgeht, zwei Stanzeinheiten (4',4"), die an der Lagerkonstruktion (2;2',2") angebracht und im wesentlichen einander zugewandt sind, und eine Bewegungseinrichtung (13,14;13,60) für ein Blech auf dem Arbeitstisch (1) aufweist, um das Blech in Ausrichtung zu den Stanzeinheiten (4', 4") zu bringen, dadurch gekennzeichnet, daß die Bewegungseinrichtung (13,14;13,60) zwei Verschiebeeinrichtungen (13,14) aufweist, die jeweils einen ersten Schlitten (15) haben, welcher längs einer ersten Richtung (Y) auf dem Arbeitstisch (1)bewegbar ist, die erste Richtung (Y) im wesentlichen orthogonal zu der Lagerkonstruktion (2;2',2") ist und einen zweiten Schlitten (17) haben, welcher mit einer Halteeinrichtung (18) für das längs einer zweiten Richtung (X) auf dem Arbeitstisch(1) bewegbare Blechversehen ist, die zweite Richtung (X) im wesentlichen parallel zu der Lagerkonstruktion (2;2',2") ist, jede der Verschiebeeinrichtungen (13,14) mit dem entsprechenen Ende des Arbeitstisches (1) verbunden und auf gegenüberliegenden Seiten des Arbeitstisches (1) bezüglich der Lagerkonstruktion (2; 2', 2") angeordnet ist, und daß die zwei Verschiebeeinrichtungen (13,14) längs der ersten Richtung (Y) einen derart ausreichenden Hub haben, daß eine Verschiebeeinrichtung ein zu stanzendes Blech zuführen oder ein bereits gestanztes Blech abführen kann, während die andere Verschiebeeinrichtung bei der Bearbeitung eines weiteren Blechs in Eingriff ist.
  2. Stanzvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Bewegungseinrichtung auch einen Rotor (60) zum Verdrehen des Blechs auf dem Arbeitstisch (1) aufweist.
  3. Stanzvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zwei Stanzeinheiten (4', 4") längs der zweiten Richtung (X) im wesentlichen zugewandt liegen.
  4. Stanzvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die zwei Stanzeinheiten (4',4") Multipressen-Stanzköpfe sind, welche jeweils eine Mehrzahl von Stanzwerkzeugen (7,8) aufweisen, die unabhängig voneinander betreibbar sind.
  5. Stanzvorichtung nach Anspruch 3, dadurch gekennzeichnet, daß die zwei Stanzeinheiten (4',4") Monopressen-Stanzköpfe sind.
  6. Stanzvorrichtung nach einem der Ansprüche 3, 4 oder 5, dadurch gekennzeichnet, daß die zwei Stanzeinheiten (4',,4") einen veränderbaren wechselseitigen Abstand haben.
  7. Stanzvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Lagerkonstruktion (2) eine im wesentlichen geschlossene, ringförmige Konstruktion hat.
  8. Stanzvorrichtung nah einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Lagerkonstruktion (2',2") zwei im wesentlichen einander zugewandte "C"-förmige Halbteile aufweist, welche jeweils eine zugeordnete Stanzeinheit der beiden Stanzeinheiten (4, 4') tragen können.
EP98203435A 1997-12-05 1998-10-12 Verbesserte Stanzvorrichtung für Blechteile Expired - Lifetime EP0920933B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI972695 1997-12-05
IT97MI002695A IT1296923B1 (it) 1997-12-05 1997-12-05 Macchina punzonatrice di pannelli di lamiera perfezionata

Publications (3)

Publication Number Publication Date
EP0920933A2 EP0920933A2 (de) 1999-06-09
EP0920933A3 EP0920933A3 (de) 2001-01-03
EP0920933B1 true EP0920933B1 (de) 2003-12-17

Family

ID=11378316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98203435A Expired - Lifetime EP0920933B1 (de) 1997-12-05 1998-10-12 Verbesserte Stanzvorrichtung für Blechteile

Country Status (9)

Country Link
EP (1) EP0920933B1 (de)
JP (1) JPH11244958A (de)
KR (1) KR19990062770A (de)
AT (1) ATE256511T1 (de)
BR (1) BR9805137A (de)
CA (1) CA2250781A1 (de)
DE (1) DE69820575T2 (de)
ES (1) ES2212213T3 (de)
IT (1) IT1296923B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20010018U1 (it) * 2001-08-13 2003-02-13 Dallan Srl Macchina punzonatrice per nastri di lamiera
DE10151286A1 (de) 2001-10-22 2003-04-30 Tesa Ag Beschichtungsverfahren
ITMI20030242A1 (it) * 2003-02-11 2004-08-12 Salvagnini Italia Spa Manipolatore per la movimentazione di fogli di lamiera su un piano di lavoro in una macchina punzonatrice
FR2872440B1 (fr) * 2004-07-01 2007-10-12 Jean Claude Jeandeaud Dispositif de travail de flans
EP1759782A1 (de) * 2005-09-02 2007-03-07 Arcelor Steel Service Centres Vorrichtung und Verfahren zur Bearbeitung von Blechen
CN114378171B (zh) * 2022-03-03 2023-09-01 杭州尚金缘珠宝首饰有限公司 一种用于黄金产品加工的冲压成型机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092892A (en) * 1975-06-23 1978-06-06 Ronald Moone Hole forming machine
EP0100420A1 (de) * 1982-07-14 1984-02-15 Hämmerle AG Vorrichtung zum Manipulieren von Werkstücken
US4503741A (en) * 1982-07-26 1985-03-12 The Warner & Swasey Company Bridge type punch press
JPS59223128A (ja) * 1983-06-03 1984-12-14 Nissan Motor Co Ltd パンチングプレス装置のワ−クグリツパ−装置
JPS6061129A (ja) * 1983-09-10 1985-04-08 Nissan Motor Co Ltd パンチングプレス装置におけるワ−クの把持方法

Also Published As

Publication number Publication date
BR9805137A (pt) 1999-12-21
JPH11244958A (ja) 1999-09-14
DE69820575T2 (de) 2004-11-04
CA2250781A1 (en) 1999-06-05
DE69820575D1 (de) 2004-01-29
ES2212213T3 (es) 2004-07-16
ATE256511T1 (de) 2004-01-15
EP0920933A2 (de) 1999-06-09
EP0920933A3 (de) 2001-01-03
KR19990062770A (ko) 1999-07-26
IT1296923B1 (it) 1999-08-03
ITMI972695A1 (it) 1999-06-05

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