EP1731237B1 - Machine pour travailler de la tôle - Google Patents

Machine pour travailler de la tôle Download PDF

Info

Publication number
EP1731237B1
EP1731237B1 EP06007822A EP06007822A EP1731237B1 EP 1731237 B1 EP1731237 B1 EP 1731237B1 EP 06007822 A EP06007822 A EP 06007822A EP 06007822 A EP06007822 A EP 06007822A EP 1731237 B1 EP1731237 B1 EP 1731237B1
Authority
EP
European Patent Office
Prior art keywords
sheet metal
working machine
metal working
tool
machine according
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.)
Not-in-force
Application number
EP06007822A
Other languages
German (de)
English (en)
Other versions
EP1731237A2 (fr
EP1731237A3 (fr
Inventor
Andreas Wotke
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.)
Heinz Wotke Gesmbh
Original Assignee
Heinz Wotke Gesmbh
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 Heinz Wotke Gesmbh filed Critical Heinz Wotke Gesmbh
Publication of EP1731237A2 publication Critical patent/EP1731237A2/fr
Publication of EP1731237A3 publication Critical patent/EP1731237A3/fr
Application granted granted Critical
Publication of EP1731237B1 publication Critical patent/EP1731237B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the invention relates to a sheet metal working machine, with a table for receiving interchangeable bending dies, an over which can be raised and lowered disposed upper cheek for receiving replaceable punch and a movable in the machine direction stop device.
  • Bent sheet metal parts which have both curves and bends, are no longer thinkable from modern designs.
  • a press brake and a curler are needed for the production of such bent sheet metal parts so far at least two different machines are needed, namely a press brake and a curler.
  • the sheet metal part (workpiece) has to be transported back and forth several times between the machines. This is time consuming and costly.
  • the sheet metal part must be repositioned each time in the machine.
  • the DE 37 45 067 C2 discloses a plate bending machine according to the preamble of claim 1.
  • the DE 32 08 851 A1 discloses a three-roll bending press with two lower rolls in a fixed position and an upper roll.
  • the upper roller is reciprocable at both ends by means of steering joints actuated by two pairs of hydraulic pistons.
  • the invention has for its object to provide a sheet metal working machine of the specified type, which is suitable sheet metal parts having bends and curves to produce efficiently.
  • the advantages achieved by the invention are that the sheet metal bent part is no longer transported between two different machines and the sheet metal part usually has to be positioned only once in the machine according to the invention.
  • the integration according to the invention of the tools necessary for the various processing steps, i. a Abkant- and curl into a machine, allows rapid production of bent sheet metal parts with high surface quality, which have both curves and folds.
  • the advantageous embodiment described in claim 2 allows accurate monitoring of the rolling process. If both upper and lower tools are each equipped with a position transducer, the machine controller can detect slippage between the rollers and the bending part and as a result adjust the control of the machine, e.g. the pressure exerted by the upper cheek is changed.
  • a further advantageous embodiment allows the curling of funnels.
  • the upper beam is lowered obliquely, and the stop device has at least two attachment points, which are independently movable at least in width and depth.
  • the further advantageous embodiment in claim 3 makes it possible to adjust the working width of the curl the sheet metal part.
  • the rollers not frictional connected the movement of the sheet metal part is not orthogonal to the roller axes of the retractor.
  • the claim 5 relates to a further advantageous embodiment.
  • the height-adjustable stop table holds the stop device in constant contact with the workpiece. Thereby, an undesirable sagging of the sheet metal bent part by gravity can be prevented.
  • this embodiment allows a change of the Einrollradien according to a predetermined program.
  • the claim 6 describes a particularly advantageous embodiment.
  • the stop device can act as a support if so high forces are necessary for deforming the bent sheet metal part, that the slip between the rollers and the Bechbiegeteil becomes large, since by means of the gripper feed, in particular tensile forces can be transmitted from the drive of the stop device on the sheet metal part. If the stop device NC controlled, this allows a very accurate control of the rolling process.
  • FIG. 1 shown view of the sheet metal processing machine according to the invention shows a table 1, on which a bending bit 2 and the lower tool 6 a retractor are attached. Above this there is a raising and lowering upper cheek 3, on which a bending punch 4 are fastened over the bending die 2 and an upper tool 7 are suspended above the lower tool 6.
  • the lower tool 6 and the upper tool 7 are rotationally driven by means of a geared motor 13.
  • FIG. 2 shows an embodiment in which behind the table 1, an NC-controlled longitudinal and height adjustable stop device 21 is located. It includes, inter alia, a table 5 and the usual drives such as 18.
  • the workpiece 16 located between the bending punch 4 and the bending die 2 is shown.
  • the receptacle for the replaceable punch 4 and the replaceable Biegematritze 2 can be seen. If the upper beam 3 is lowered, this causes a bending of the workpiece 16.
  • Die FIG. 3 shows the embodiment from the other side. Here is the bending tool instead of the To see lower tool 6 and the upper tool 7 of the retractor.
  • the lower tool 6 of the rolling device has two parallel rollers 8, which are rotatably mounted at right angles to the workpiece transport direction.
  • the upper tool 7 located above has a roller 9, which is arranged rotatable parallel to the two lower rollers 8. It is also possible to equip the upper tool 7 with two rollers, in this case, only one roller is necessary on the lower tool 6.
  • both lower tool 6 and upper tool 7 each have two rollers, and at least one tool 6 and / or 7 is pivotally connected to the table or the upper beam. In this embodiment, also S-bends can be produced in one operation.
  • the stop device 21 comprises a gripper 14.
  • FIG. 5 shows a partially sectioned supervision. Shown is a movable stop device 21 with two stop tables 5, which are independently movable in the x direction, and a machine control 11, the table 1, the driven by means of geared motor 13 lower tool 6, the workpiece 16 and the Biegematritze 2. For alternating folding and Rounds of the workpiece must be moved between the individual steps only the stop tables 5 and the workpiece 16 are moved accordingly.
  • FIG. 6 shows the bervorzugte embodiment of the rolling device, in which the upper tool 7 is modular.
  • the individual, replaceable modules 12 each comprise a roller 9 (see. Fig. 8 ) which is rotatably supported by two bearing shafts 17.
  • the modules 12 are held in the upper beam 3 by wedge and groove.
  • the lower tool 6 is rotationally driven by means of the geared motor 13 and modular built up.
  • the rollers 8 of the lower tool 6 are non-positively connected by jaw clutches.
  • FIG. 7 shows the embodiment of the curling device according to FIG. 1 in the frontal view.
  • the lower tool 6 and the upper tool 7 are constructed modularly from rollers 8, 9 and rotationally driven with their own geared motor 13.
  • FIG. 8 shows a detailed view of the modules 12 of the upper tool 7 in FIG. 6 .
  • FIG. 9 shows the modules of the lower tool 6 in Fig. 6 .
  • the lower rollers 8 can be positively connected to each other by means of jaw clutches.
  • FIG. 10 shows a section through the lower tool 6 in Fig. 6 ,
  • the lower rollers 8 are rotatably supported on bearing shafts 19.
  • the cross member 23 has recesses so that the lower rollers 8 are rotatable.
  • FIGS. 11 and 12 show side views of the upper tool 7 and the lower tool. 6
  • FIG. 2 shows the process of producing an exemplary sheet-metal bent part according to the prior art.
  • FIG. 14 shows the workflow for producing a structurally identical sheet-metal part by means of the sheet metal processing machine according to the invention.
  • the comparison of the two workflows shows that a workflow is achieved with the sheet metal working machine according to the invention, which manages with a significantly reduced number of steps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Advancing Webs (AREA)
  • Soil Working Implements (AREA)
  • Press Drives And Press Lines (AREA)

Claims (6)

  1. Machine à travailler la tôle, avec un plateau (1) destiné à recevoir des matrices de pliage (2) interchangeables, une mâchoire supérieure (3) disposée au-dessus de celui-ci de façon à pouvoir se lever et s'abaisser et destinée à recevoir des poinçons de pliage (4) interchangeables et un dispositif de butée (21) déplaçable dans le sens du travail de la pièce de tôle à plier (16), caractérisée en ce qu'elle comprend un outil inférieur (6) disposé de façon interchangeable sur le plateau (1) à côté du logement de la matrice de pliage et formé de deux rouleaux inférieurs (8) pouvant tourner autour d'axes parallèles et perpendiculaires au sens de transport de la pièce ainsi qu'un outil supérieur (7) fixé au-dessus de façon interchangeable sur la mâchoire supérieure à côté du logement des poinçons de pliage, qui comprend un rouleau supérieur (9) pouvant tourner autour d'un axe parallèle aux axes des rouleaux inférieurs.
  2. Machine à travailler la tôle selon la revendication 1, caractérisée en ce qu'un capteur de mesure de la distance connecté à une commande de machine (11) est relié au mois à l'outil inférieur (6) ou à l'outil supérieur (7).
  3. Machine à travailler la tôle selon l'une des revendications 1 ou 2, caractérisée en ce que l'outil inférieur (6) et l'outil supérieur (7) se composent de modules de rouleau (12) pouvant être alignés les uns à la suite des autres et reliés entre eux par friction.
  4. Machine à travailler la tôle selon la revendication 3, caractérisée en ce que l'assemblage par friction entre les modules de rouleau (12) se compose d'accouplements à griffes ou de dentures Hirth complémentaires disposés sur les faces d'extrémité.
  5. Machine à travailler la tôle selon l'une des revendications 1 à 4, caractérisée en ce que le dispositif de butée (21) comprend un plateau de butée (5) mobile en hauteur.
  6. Machine à travailler la tôle selon l'une des revendications 1 à 5, caractérisée en ce que le dispositif de butée (21) est conformé comme un mécanisme d'avance des pièces pliées en tôle et comprend un dispositif de préhension (14) pour la pièce pliée en tôle.
EP06007822A 2005-06-09 2006-04-13 Machine pour travailler de la tôle Not-in-force EP1731237B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005026727A DE102005026727B3 (de) 2005-06-09 2005-06-09 Blechbearbeitungsmaschine

Publications (3)

Publication Number Publication Date
EP1731237A2 EP1731237A2 (fr) 2006-12-13
EP1731237A3 EP1731237A3 (fr) 2007-08-29
EP1731237B1 true EP1731237B1 (fr) 2008-07-16

Family

ID=36828487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06007822A Not-in-force EP1731237B1 (fr) 2005-06-09 2006-04-13 Machine pour travailler de la tôle

Country Status (3)

Country Link
EP (1) EP1731237B1 (fr)
AT (1) ATE401145T1 (fr)
DE (2) DE102005026727B3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101249536B (zh) * 2008-04-14 2010-11-03 江苏新扬子造船有限公司 利用三辊卷板机压制槽型舱壁的方法
DE102010048795B4 (de) 2010-10-20 2019-03-28 Wolfram Hochstrate Schwenkbiegemaschine und Verfahren zum Umformen von Sandwichblechen
AT510689B1 (de) * 2011-03-07 2012-06-15 Trumpf Maschinen Austria Gmbh Verfahren zum positionieren eines werkstücks an einer abkantpresse
ITTV20120072A1 (it) 2012-05-08 2013-11-09 Andrea Argentin Dispositivo di riferimento posizionale
CN105834309A (zh) * 2016-05-25 2016-08-10 中航威海船厂有限公司 加工散货船槽型舱壁用胎具
FR3078274B1 (fr) * 2018-02-27 2022-02-18 Ojb Matrice de pliage d'une piece de chaudronnerie avec barres de renfort
EP3640016B1 (fr) * 2019-08-21 2024-10-23 Clecim Sas Presse pour produit métallique et méthode associée
CN115519176B (zh) * 2021-06-25 2025-10-14 宝山钢铁股份有限公司 一种具有伺服输送压轮的试样剪及其控制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1145952B (it) * 1981-03-17 1986-11-12 Luigi Bruzzone Calandra con rulli inferiori fissi e rullo superiore oscillante
US4411150A (en) * 1981-10-21 1983-10-25 Houdaille Industries, Inc. Backgauge structure
US4770017A (en) * 1986-04-02 1988-09-13 Agency Of Industrial Science And Technology Apparatus for forming plate with a double-curved surface
DE3745067C2 (de) * 1986-06-20 1997-03-20 Amada Co Biegepresse
GB2219669A (en) * 1988-06-07 1989-12-13 Hiroshi Sato Press brake with a displacement sensor
US5365767A (en) * 1992-03-23 1994-11-22 Steelcase Inc. Brake press arrangement
DE19750815B4 (de) * 1997-11-17 2006-09-28 Sms Demag Ag Biegevorrichtung für ein Metallband
FR2847836B1 (fr) * 2002-12-03 2006-02-03 Imp Ingenierie Et Mecanique De Dispositif de presse multifonction

Also Published As

Publication number Publication date
EP1731237A2 (fr) 2006-12-13
EP1731237A3 (fr) 2007-08-29
DE102005026727B3 (de) 2006-10-12
ATE401145T1 (de) 2008-08-15
DE502006001104D1 (de) 2008-08-28

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