EP1366832B1 - Dispositif d'accouplement d'un outil, en particulier pour des presses - Google Patents

Dispositif d'accouplement d'un outil, en particulier pour des presses Download PDF

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Publication number
EP1366832B1
EP1366832B1 EP03011599A EP03011599A EP1366832B1 EP 1366832 B1 EP1366832 B1 EP 1366832B1 EP 03011599 A EP03011599 A EP 03011599A EP 03011599 A EP03011599 A EP 03011599A EP 1366832 B1 EP1366832 B1 EP 1366832B1
Authority
EP
European Patent Office
Prior art keywords
tool
housing
jaw
active
screw
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
EP03011599A
Other languages
German (de)
English (en)
Other versions
EP1366832A3 (fr
EP1366832A2 (fr
Inventor
Giovanni Cella
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.)
Schiavi Macchine Industriali SpA
Original Assignee
Schiavi Macchine Industriali 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 Schiavi Macchine Industriali SpA filed Critical Schiavi Macchine Industriali SpA
Publication of EP1366832A2 publication Critical patent/EP1366832A2/fr
Publication of EP1366832A3 publication Critical patent/EP1366832A3/fr
Application granted granted Critical
Publication of EP1366832B1 publication Critical patent/EP1366832B1/fr
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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • B21D5/0236—Tool clamping

Definitions

  • Such coupling devices allow replacing the tools and are traditionally made through hydraulic, pneumatic, mechanical or mixed systems, anyway adapted to lock the tool position, by abutment in horizontal movements and by friction in vertical movements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Jigs For Machine Tools (AREA)
  • Press Drives And Press Lines (AREA)
  • Details Of Cutting Devices (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Clamps And Clips (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Claims (4)

  1. Dispositif d'accouplement d'outils (1), en particulier pour des presses, du type comprenant:
    au moins un accouplement magnétique entre l'outil et la machine de manière à maintenir l'outil à proximité d'un logement porte-outil (3);
    des moyens de blocage (4) opérationnellement actifs sur l'outil, pour prévenir son désengagement accidentel du logement (3);
    lesdits moyens de blocage (4) comprenant:
    au moins une mâchoire (5) fixée à proximité du logement porte-outil (3) par l'intermédiaire d'une articulation (6) et présentant une portion (5a) opérationnellement active sur l'outil;
    des moyens élastiques (7) connectés à la mâchoire (5) sur la partie opposée à la portion active (5a) par rapport à l'articulation (6), pour faire pivoter la mâchoire (5) et comprimer ladite portion active (5a) contre l'outil;
    des moyens (8) pour régler une précontrainte des moyens élastiques (7),
    caractérisé en ce que les moyens élastiques (7) comprennent au moins un ressort précontraint (9) logé dans un renfoncement de la machine et placé entre la mâchoire (5) et une surface de butée mobile (10) entre au moins une première position opérationnelle avec compression maximum du ressort (9) et une seconde position opérationnelle avec une extension au moins partielle du ressort (9); lesdits moyens (8) de réglage d'une précontrainte des moyens élastiques (7) comprennent au moins une vis (11) coaxiale au ressort (9) et intégralement connectée à la surface de butée (10) et comprennent des moyens (12) de mise en mouvement de la vis (11);
    lesdits moyens (12) de mise en mouvement de la vis (11) comprennent:
    une roue dentée (13) intégralement connectée à la vis (11);
    une crémaillère cinématiquement connectée à la roue dentée (13) pour activer sa rotation;
    des moyens pour mettre en mouvement la crémaillère.
  2. Dispositif selon la revendication 1, caractérisé en ce qu'il comprend des moyens de désaccouplement conformés de manière à libérer l'outil maintenu par le dispositif (1) et également à libérer simultanément les outils des autres dispositifs d'accouplement (1) faisant partie de la machine.
  3. Dispositif selon la revendication 1, dans lequel l'accouplement magnétique comprend au moins un aimant (2) disposé à proximité d'un logement porte-outil (3) de la machine et opérationnellement actif sur une surface de butée ferromagnétique d'un outil, de manière à le maintenir à l'intérieur dudit logement (3).
  4. Dispositif selon la revendication 1, dans lequel l'accouplement ferromagnétique comprend au moins un aimant (2) associé à un outil disposé de manière à être opérationnellement actif sur un élément ferromagnétique disposé à proximité d'un logement porte-outil (3), pour maintenir l'outil à l'intérieur dudit logement (3).
EP03011599A 2002-05-28 2003-05-22 Dispositif d'accouplement d'un outil, en particulier pour des presses Expired - Lifetime EP1366832B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002PR000028A ITPR20020028A1 (it) 2002-05-28 2002-05-28 Dispositivo di aggancio di utensili, in particolare per macchine da pressa.
ITPR20020028 2002-05-28

Publications (3)

Publication Number Publication Date
EP1366832A2 EP1366832A2 (fr) 2003-12-03
EP1366832A3 EP1366832A3 (fr) 2005-10-05
EP1366832B1 true EP1366832B1 (fr) 2008-03-05

Family

ID=29416383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03011599A Expired - Lifetime EP1366832B1 (fr) 2002-05-28 2003-05-22 Dispositif d'accouplement d'un outil, en particulier pour des presses

Country Status (5)

Country Link
EP (1) EP1366832B1 (fr)
AT (1) ATE387972T1 (fr)
DE (1) DE60319461T2 (fr)
ES (1) ES2302878T3 (fr)
IT (1) ITPR20020028A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7296457B2 (en) * 2004-06-25 2007-11-20 Wilson Tool International Inc. Thermally-actuated press brake tool holder technology
DE202012102759U1 (de) * 2012-07-23 2013-07-24 Krones Aktiengesellschaft Faltvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05337553A (ja) * 1992-06-05 1993-12-21 Amada Metrecs Co Ltd プレスブレーキ用金型クランプ装置
JPH06142767A (ja) * 1992-11-05 1994-05-24 Amada Metrecs Co Ltd プレスブレーキ用金型ホルダの駆動装置
JPH06262263A (ja) * 1993-03-15 1994-09-20 Yazaki Corp プレスブレーキ上型クランプ装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2791590A1 (fr) * 1999-03-31 2000-10-06 Michel Brisard Dispositif de mise en position et de maintien pour outils travaillant en exercant une pression et porte-outils correspondant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05337553A (ja) * 1992-06-05 1993-12-21 Amada Metrecs Co Ltd プレスブレーキ用金型クランプ装置
JPH06142767A (ja) * 1992-11-05 1994-05-24 Amada Metrecs Co Ltd プレスブレーキ用金型ホルダの駆動装置
JPH06262263A (ja) * 1993-03-15 1994-09-20 Yazaki Corp プレスブレーキ上型クランプ装置

Also Published As

Publication number Publication date
ES2302878T3 (es) 2008-08-01
DE60319461D1 (de) 2008-04-17
DE60319461T2 (de) 2009-03-05
EP1366832A3 (fr) 2005-10-05
EP1366832A2 (fr) 2003-12-03
ATE387972T1 (de) 2008-03-15
ITPR20020028A1 (it) 2003-11-28

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