EP0583449A1 - Presse a plier - Google Patents

Presse a plier

Info

Publication number
EP0583449A1
EP0583449A1 EP93903803A EP93903803A EP0583449A1 EP 0583449 A1 EP0583449 A1 EP 0583449A1 EP 93903803 A EP93903803 A EP 93903803A EP 93903803 A EP93903803 A EP 93903803A EP 0583449 A1 EP0583449 A1 EP 0583449A1
Authority
EP
European Patent Office
Prior art keywords
bending
machine according
folding
swivel
folding 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.)
Withdrawn
Application number
EP93903803A
Other languages
German (de)
English (en)
Inventor
Edgar Griebel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0583449A1 publication Critical patent/EP0583449A1/fr
Withdrawn legal-status Critical Current

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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/042—With a rotational movement of the bending blade

Definitions

  • the invention relates to a folding machine in which bending cheeks with bending rails and clamping tools are arranged on a fixed lower cheek and on a movable upper cheek.
  • Such machines are known from the prior art which operate on two different principles of deformation. On the one hand, these are machines that work according to the so-called die bending process and, on the other hand, machines that use the so-called swivel bending process. Bending machines that work according to the die bending method are used above all where long profiles that are limited in width have to be processed. The deformation takes place in that a vertically movable upper die is pressed into a V-shaped die below. In this way, folds can be generated in angular ranges from 0 ° to 120 °. This process is unsuitable for large-area bent parts, because in this process the
  • a disadvantage occurs that the two bending legs of the workpiece swivel upwards in half of the angle to be bent during the bending process and thereby leave visible auxiliary edges.
  • Swivel bending process For large parts such as doors, gates, panels, etc., the so-called is therefore used Swivel bending process.
  • the sheet metal parts to be processed lie on a bending table or a vacuum tool. When machining, only the narrow side of the workpiece is folded upwards.
  • Such bending machines enable bends from 0 ° to 150 ° without changing tools. By pressing with the same tool, these machines also enable bends of up to 180 °.
  • both types of machine have the disadvantage that profiles and sheet metal parts can only be bent in one direction.
  • the workpieces to be machined must be turned by an operator.
  • the invention is therefore based on the object of providing a machine which enables bends in the range from 0 ° to 180 ° in different directions without the workpieces having to be turned by an operator.
  • the object is achieved by a swivel bending machine in which bending rails are mounted on the cheeks for performing the bending movement by means of spatial joints, preferably by means of articulated couplings, and by mechanically or hydraulically actuated displacement devices can be positioned in the longitudinal direction.
  • the hinge-like spatial joints allow bends up to angles of approximately 150 °.
  • the swivel bending machine according to the invention avoids the storage of the bending cheeks on the two side stands, which is necessary in the state of the art, and thus wide-reaching bending cheek constructions which are swiveled about their own axis via the center point of the bending radius.
  • the machine permits simultaneous bending at several points on the workpiece and a sequence of bending processes both upwards and downwards in the same or alternating sequence.
  • a particularly advantageous embodiment of the swivel bending machine according to the invention arises from the fact that the bending cheeks are mounted in spatial joints arranged several times next to one another.
  • deformations of the bending cheeks occur in swivel bending machines, as are known from the prior art.
  • the machine according to the invention avoids these deflections and thereby allows higher accuracies in the bending processes to be achieved.
  • a further, particularly advantageous embodiment of the swivel bending machine according to the invention results from the fact that the bending rails and / or the clamping tools consist of longitudinally adjustable arrangements which are arranged in a button-like manner, analogously to piano keys.
  • the equipment of the machine with such bending rails and clamping tools enables the processing of sheet metal parts on all four sides, the so-called baking sheet folds.
  • the machine is provided with sheet metal support elements on which there are rollers for the smooth movement of the workpieces.
  • a turntable machine preferably a hydrau ⁇ lisch vacuum actuated turntable to arrange.
  • This vacuum turntable enables the sheet metal part to be raised and simultaneously swiveled by 0 ° to 90 ° or up to 180 ° in order to bring the workpieces into the corresponding working position in accordance with the requirements of the bends to be carried out.
  • a CNC-controlled electrical depth stop The invention completes the invention in connection with a 5-axis CNC control.
  • the fixed lower beam (3) and the hydraulically movable upper beam (2) are attached to a side stand (1).
  • the upper clamping tool (8) is attached to the upper cheek (2) and the lower clamping tool (9) to the lower cheek (3).
  • the clamping tools are longitudinally displaceable perpendicular to the plane of the drawing and thus enable bending of different lengths. The bending can take place both upwards and downwards.
  • a hydraulically operated lowering beam (5) is attached to the lower beam (3), with which pivoting movements of up to approximately 150 ° can be carried out.
  • This bending beam can also be swiveled up to an angle of 150 °.
  • the bending cheeks are supported with the spatial joints shown in FIG. Of particular advantage is that these joints are juxtaposed in the direction of 'axis of rotation several times Toggle.
  • swivel bending machines in which the storage is carried out on the two side stands (1) and which consequently require a widely protruding bending beam construction, Which can be pivoted about the center point of the bending radius results in the essential advantage that the bending cheeks are much more stable and deflections hardly occur, which leads to an increase in accuracy.
  • both the upper bending beam (4) and the lower bending beam (5) have dovetail guides in which the piano key lower bending rails (7) and the piano key upper bending rails (8) can be moved with the help of the hydraulic shifting devices.
  • the bending rails can either be brought into the working position or released for bending up or down.
  • the machine is also equipped with sheet metal support elements (12), which make it possible to put heavy sheet metal parts on and to move them smoothly with the aid of the pot rollers attached to these supports.
  • the machine also has a turntable (11) for vacuum parts.
  • This turntable enables the bent part to be machined to be lifted and swiveled by 90 ° or 180 ° in order to
  • a CNC-controlled electric depth stop (10) in conjunction with a 5-axis CNC control a particularly economical use of the machine according to the invention.
  • FIGS. 2 to 7 show the individual working phases of the production of a rectangular container which is open at the top and in which the edge is flanged outwards on two opposite sides.
  • the initially flat workpiece has the reference symbol (13).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

Dans une presse à plier, dans laquelle sont disposées, sur une traverse immobile (3) et sur une traverse de pression mobile (2), des traverses à plier (4, 5) avec des barres de pliage (6, 7) ainsi que des outils de serrage (8, 9), il est proposé de loger les dispositifs de pliage (6, 7) au moyen de mécanismes à mouvement spatial, de préférence des joints à rotule, sur les traverses (2, 3) pour exécuter le mouvement de pliage, et de les positionner dans le sens longitudinal au moyen de dispositifs de déplacement à actionnement mécanique ou hydraulique.
EP93903803A 1992-02-29 1993-02-18 Presse a plier Withdrawn EP0583449A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4206417A DE4206417A1 (de) 1992-02-29 1992-02-29 Schwenkbiegemaschine
DE4206417 1992-02-29

Publications (1)

Publication Number Publication Date
EP0583449A1 true EP0583449A1 (fr) 1994-02-23

Family

ID=6452951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93903803A Withdrawn EP0583449A1 (fr) 1992-02-29 1993-02-18 Presse a plier

Country Status (3)

Country Link
EP (1) EP0583449A1 (fr)
DE (1) DE4206417A1 (fr)
WO (1) WO1993016822A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1002553C1 (nl) * 1995-05-31 1996-12-03 Cornelis Hendricus Liet Inrichting voor het buigen van een metaalplaat.
NL1000459C2 (en) * 1995-05-31 1996-12-03 Cornelis Hendricus Liet Device for bending metal sheet
IT1292259B1 (it) 1997-04-15 1999-01-29 Antonio Codatto Pressa piegatrice per lamiere.
DE19735793C2 (de) * 1997-08-18 2001-07-12 Wolfram Hochstrate Schwenkbiegemaschine
DE19901794A1 (de) 1999-01-19 2000-07-27 Reinhardt Gmbh Maschbau Biegemaschine
DE19901796A1 (de) * 1999-01-19 2000-07-27 Reinhardt Gmbh Maschbau Biegemaschine
DE19901797A1 (de) * 1999-01-19 2000-07-27 Reinhardt Gmbh Maschbau Biegemaschine
FI110491B (fi) * 2000-09-26 2003-02-14 Rondeco Oy Levynkäsittelylaite
NL1017719C2 (nl) * 2001-03-28 2002-10-01 Cornelis Hendricus Liet Inrichting voor het buigen van een metaalplaat.
DE10245778A1 (de) 2002-09-26 2004-04-08 Reinhardt Maschinenbau Gmbh Biegemaschine
CZ300617B6 (cs) * 2007-07-13 2009-07-01 Reinhard@Franze Ohýbacka plechu a zpusob ohýbání plechu na této ohýbacce
US8371150B2 (en) * 2010-11-09 2013-02-12 Cheng Uei Precision Industry Co., Ltd. Forming die
ITVR20110061A1 (it) * 2011-03-30 2012-10-01 Finn Power Italia S R L Meccanismo di movimentazione per struttura portalame di macchina pannellatrice per l'esecuzione di piegature su fogli di lamiera metallica
FR3012352B1 (fr) * 2013-10-30 2016-04-15 G Participations Plieuse pour flan plat
DE102018000344B3 (de) * 2018-01-17 2019-05-23 Nikolaus Franz Duscher Biegemaschine, Biegeeinheit, elektronische Steuereinrichtung und Verfahren zum Biegen eines Werkstücks aus Flachmaterial
CN108856383A (zh) * 2018-06-29 2018-11-23 厦门正黎明冶金机械有限公司 折弯机构及折弯设备
DE102019104502B4 (de) * 2019-02-21 2021-01-14 Ralf Beger Kombimaschine zum Schwenk- und Gesenkbiegen eines Werkstücks sowie Verwendung einer Schwenkbiegemaschine als Abkantpresse
WO2021025566A1 (fr) * 2019-08-02 2021-02-11 Seminario Montenegro Eduardo Raul Plieuse de tôle à système double sens
EP3778048B1 (fr) * 2019-08-15 2023-06-07 Thalmann Maschinenbau AG Machine d'usinage pour pièces de matériau plat dotée d'une unité de pose et procédé correspondant
CN111468574B (zh) * 2020-05-07 2022-04-01 湖南固可得建筑科技有限公司 一种全自动双向折边机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344633A (en) * 1964-09-16 1967-10-03 Walter W Wilson Automatic bending brake
FR2307592A1 (fr) * 1975-04-16 1976-11-12 Lamendour Andre Machine automatique de pliage de toles
DE8600539U1 (de) * 1986-01-11 1986-05-28 Lummel, Heinz, 8782 Karlstadt Abkantbank für die Blechbearbeitung
AT384565B (de) * 1986-04-03 1987-12-10 Voest Alpine Ag Anlage zum randseitigen abkanten eines in seiner grundform rechteckigen blechzuschnittes
AT385689B (de) * 1986-08-14 1988-05-10 Voest Alpine Ag Vorrichtung zum abkanten von blechzuschnitten
JPH0220621A (ja) * 1988-07-06 1990-01-24 Hirotec:Kk ヘミング装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9316822A1 *

Also Published As

Publication number Publication date
DE4206417A1 (de) 1993-09-02
WO1993016822A1 (fr) 1993-09-02

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