EP0843605B1 - Dispositif pour plier une tole metallique - Google Patents

Dispositif pour plier une tole metallique Download PDF

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Publication number
EP0843605B1
EP0843605B1 EP96915022A EP96915022A EP0843605B1 EP 0843605 B1 EP0843605 B1 EP 0843605B1 EP 96915022 A EP96915022 A EP 96915022A EP 96915022 A EP96915022 A EP 96915022A EP 0843605 B1 EP0843605 B1 EP 0843605B1
Authority
EP
European Patent Office
Prior art keywords
cheek
bending
pivot axis
shaft
distance
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
EP96915022A
Other languages
German (de)
English (en)
Other versions
EP0843605A1 (fr
Inventor
Wolfgang Kutschker
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.)
Reinhardt Maschinenbau GmbH
Original Assignee
Reinhardt Maschinenbau GmbH
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 Reinhardt Maschinenbau GmbH filed Critical Reinhardt Maschinenbau GmbH
Publication of EP0843605A1 publication Critical patent/EP0843605A1/fr
Application granted granted Critical
Publication of EP0843605B1 publication Critical patent/EP0843605B1/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
    • B21D5/04—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
    • 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 device for bending a Sheets with a machine frame, with a lower beam, with an upper cheek that is adjustable relative to the lower cheek and with a pivotable about a swivel axis fixed to the machine frame Bending beam, whose distance from the swivel axis is adjustable is.
  • a device of this type is known from DE 39 35 659 C2.
  • each The trap is a separate one in the known device Guide and drive device required to adjust the distance of the bending beam from its swivel axis to effect, which naturally complicates the overall device and becomes complex.
  • the device includes as essential components a stationary machine frame 1, one (particularly visible in FIG. 2) usually stationary lower beam 2, one adjustable relative to lower beam 2 Upper beam 3 and one around a machine frame fixed Swivel axis S in the direction of the double arrow B back and forth Bending beam 4.
  • Upper beam 3 is in the direction the arrow X relative to the lower beam 2 so adjustable that between lower beam 2 and upper beam 3 in the direction of arrow Y.
  • Sheet 5 inserted and placed against a stop 6 can be.
  • Fig. 3 shows schematically the bending beam 4, which by means of a rigidly connected to it shaft 8 and a roller bearing 9 (on both sides) is pivotally mounted in the machine frame 1.
  • the Shaft 8 is enclosed by a brake sleeve 11, which with high sliding adhesion value on the outside of the shaft 8, so that to effect a relative rotation between the shaft 8 and the brake sleeve 11 requires a certain torque is.
  • the brake sleeve 11 is fixed on its outside with a Eccentric member 12 connected, the outside of the roller bearing 9th circulates.
  • the eccentric member 12 has an eccentric to the pivot axis S. Hole on which shaft 8 penetrates.
  • the central axis of the roller bearing 9 coincides with the pivot axis S the bending beam 4 together.
  • To the pivot axis S is the Center axis T of the shaft rigidly connected to the bending beam 4 8, as indicated in Fig. 3, at a certain distance.
  • This Distance is 12 depending on the angular position of the eccentric member changeable relative to shaft 8 and thus optionally adjustable. Therefore, by appropriate rotation of the eccentric 12 a distance component (from e.g. a few mm) in the direction of the arrow Z (FIG. 2), whereby a (slight) adjustment of the shaft 8 and thus the Bending beam 4 in a direction perpendicular to the plane of the drawing 3 is irrelevant.
  • the eccentric member 12 is by screws 13 with a washer 14 rigidly connected, so that by turning the disc 14 Eccentric member 12 can be adjusted relative to the shaft 8.
  • the disc 14 is adjusted before the beginning of the bending process by a corresponding swiveling movement of the bending beam 4 with the disc 14 held, which in detail below will be explained later.
  • the shaft 8 is over the machine frame 1 extended (to the left in Fig. 3) and carries a drive unit, indicated only schematically 15, which in a manner yet to be described cannot be rotated on the machine frame is held and the drive of the shaft 8 and so that the bending beam 4 serves.
  • the drive unit 15 includes an electric motor (visible in FIG. 5) in a conventional manner 16 and a slip-on gear 17, which by means of a driven hollow shaft 18 on the extension of the shaft 8 is plugged in, the hollow shaft 18 rotatably (via a Key) is connected to the extension of the shaft 8.
  • the disc 14 is part of a locking device for the Eccentric member 12 relative to the shaft 8, so that, as already mentioned, with held eccentric member 12 and a twist the wave 8 overcoming self-locking a relative adjustment between eccentric member 12 and shaft 8 between these two parts and therefore an attitude the distance of the bending beam 4 from its pivot axis S is possible.
  • the disk 14 has on its peripheral edge, as shown in FIG. 4, a notch 22, into which a retaining pin 23 penetrate can, which is held stationary on the machine frame 1, so that hereby the disc 14 is prevented from rotating.
  • the holding pin 23, which is another part of the locking device is (perpendicular to the plane of the drawing in FIG. 4) of a lever 24, which is about an axis of rotation fixed to the machine frame 25 is pivotable. 4 is with solid lines that position of the lever 24 shown in which the Retaining pin 23 has penetrated into the notch 22 and hereby the disc 14 fixed. 4 with dash-dotted lines Lines shown position of the lever 24 is the Retaining pin 23 disengaged from the notch 22 so that the disc 14 and thus the eccentric member 12 and the shaft 8 can be rotated together with the bending beam 4.
  • the bending beam 4 is first in the dashed line shown, directed vertically downwards Position, and the washer 14 is through the in the notch 22 penetrated retaining pin 23 fixed. If now the Bending beam 4 from this zero or starting position Direction of arrow B is pivoted counterclockwise, takes place also because of the disc 14 Eccentric 12 a relative movement between this and the shaft 8 and thus a desired adjustment of the distance between the bending beam 4 and the pivot axis S instead.
  • Fig. 4 shows an arrangement which is an automatic introduction of the holding pin 23 in the notch 22 then always allows when the bending beam 4 in its downward direction Starting position is.
  • the upper cheek 3 which is also shown in dashed lines in Fig. 4 is about an axis of rotation 26 fixed to the machine frame (via a drive motor, not shown) pivotable, so that the end facing the lower beam 2 (essentially in the direction of the arrow X) shown in Fig. 2 the lower beam 2 can lift off.
  • arm 27 With the upper beam 3 is rigid an arm 27 connected, corresponding to the pivoting movements the upper cheek participates.
  • arm 27 is one thing End of a rod 28 articulated, which is a relative penetrates wide bore in the lever 24.
  • a coil spring 31 arranged the lever 24 (in Fig. 4) counterclockwise preloaded.
  • the connection between lever 24 and Rod 28 is so elastic that the lever 24 is relative to the rod 28 and thus to the arm 27 a limited free movement (clockwise).
  • FIG. 4 The arrangement in Fig. 4 is such that already at a partial pivoting back of the upper beam 3 in the direction in its closed position, the holding pin 23 from the notch 22 emerges again, long before the end of the upper cheek 3 rests firmly on the lower beam 2, so that before another sheet to be bent between lower beam 2 and upper beam 3 can be introduced according to FIG. 2.
  • the disk 14 has on its peripheral edge in addition to the notch 22, two steps 32, 33 on the angular distances from each other and from the notch 22 of 120 °.
  • the peripheral edge portion between the notch 22 and step 32 is circular while the peripheral edge portions between levels 32, 33 and between Level 33 and the notch 22 roughly the shape of involute have, as can be seen from the illustration of FIG. 4.
  • the disc 14 relative to the bending beam 4 plays the following process: the upper beam 3 is shown in the position lifted from the lower beam 2.
  • the spring 31 acts as an elastic compensation if the pivoting movement of the lever 24 due to the lack of radial penetration of the holding pin 23 into the notch 22 or one of the steps 32, 33 its full Cannot perform movement.
  • the Bending beam 4 driving electric motor 16 (Fig. 5) a pivoting the bending beam in a counterclockwise direction arrow B over a little more than 120 °.
  • FIG. 5 shows the anchoring of the shaft 8 of the bending beam 4 driving electric motor 16 with shaft 17 on the machine frame 1.
  • This anchoring must be articulated because the motor 16 via the slip-on gear 17 directly onto the shaft 8 is attached and thus the eccentric 12, participates in eccentric rotary movements of this shaft 8.
  • This eccentric movement takes place in the plane of the drawing of Fig. 5.
  • the lever linkage develop its flexibility in this plane and embrace it Purpose two levers in this plane, namely one first lever 34 rigidly connected to the plug-on gear 17 and a lever 35 articulated thereon, which in turn is connected to the Machine frame 1 is articulated.
  • the Invention encloses the eccentric 12, the shaft 8 of the Bending beam 4 and is with the roller bearing 9 in the machine frame rotatably mounted.
  • other arrangements would also be of the eccentric to adjust the distance of the bending beam possible from its pivot axis, if only when determined Eccentric link by pivoting the bending cheek Distance of the bending beam from its swivel axis is adjustable.
  • the holding pin is also 23 of the locking device by moving the Upper beam 3 actuated.
  • other existing, driven parts of the machine are used anyway be, for example, an optionally adjustable lower beam.
  • Fixing the substantially from the disc 14 with the Notch 22 and the movable retaining pin 23 existing Locking device is in the illustrated embodiment by latching the retaining pin 23 into the notch 22 accomplished.
  • Modifications are also conceivable here, for example the use of a clamping device with which the one Part of the locking device forming disc 14 in a predetermined angular position can be clamped.
  • the design and arrangement of the eccentric member shown in Fig. 3 12 is also mirror-symmetrical on the opposite one Side of the bending beam 4 provided on the machine frame 1, including the locking device, however without drive unit 15, which is only on one side the device is required.
  • the described device for bending a sheet is preferred with a programmable controller, e.g. one CNC control, equipped with the help of which in particular the locking device of the disc 14 and thus the eccentric member 12 actuated and the distance of the bending beam 4 from the pivot axis S automatically set in the manner described becomes.
  • a programmable controller e.g. one CNC control

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Tea And Coffee (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Claims (8)

  1. Dispositif pour le pliage d'une tôle, comportant un bâti de machine (1), un serre-flan inférieur (2), un serre-flan supérieur (3) qui peut être réglé par rapport au serre-flan inférieur, et une lame de pliage (4) qui peut être pivotée autour d'un axe de pivotement (S) fixe par rapport au bâti de machine et dont la distance par rapport à l'axe de pivotement est réglable,
    caractérisé par les particularités suivantes :
    A prévus des deux côtés de la lame de pliage (4) et pouvant tourner autour de l'axe de pivotement (S) de la lame de pliage, des éléments excentrés (12) pour le réglage de la distance entre la lame de pliage et son axe de pivotement (S) par une rotation des éléments excentrés par rapport à la lame de pliage,
    B un mécanisme de blocage (23) pour le blocage des éléments excentrés (12) dans une position angulaire prédéterminée,
    C la distance entre la lame de pliage et son axe de pivotement (S) pouvant être réglée par un pivotement de la lame de pliage lorsque les éléments excentrés (12) sont fixes.
  2. Dispositif suivant la revendication 1, caractérisé en ce que l'élément excentré (12) entoure un arbre (8) portant la lame de pliage (4) et est monté, à l'endroit de son côté externe, de façon à pouvoir tourner dans le bâti de machine (1) par un palier tournant (9).
  3. Dispositif suivant la revendication 2, caractérisé en ce que l'élément excentré (12) est agencé avec un blocage automatique (11, 20) sur l'arbre (8) de la lame de pliage (4).
  4. Dispositif suivant la revendication 1, caractérisé en ce que le mécanisme de blocage (14, 23) peut être serré fixement par un mécanisme de serrage dans la position angulaire prédéterminée.
  5. Dispositif suivant la revendication 1, caractérisé en ce que le mécanisme de blocage (14, 23) peut être verrouillé par un mécanisme de verrouillage (22) dans la position angulaire prédéterminée.
  6. Dispositif suivant la revendication 1, caractérisé en ce que le mécanisme de blocage (14, 23) peut être actionné par le mouvement du serre-flan supérieur (3).
  7. Dispositif suivant la revendication 2, caractérisé en ce qu'un ensemble d'entraínement (15) de la lame de pliage (4) est agencé sur un arbre (8), de la lame de pliage (4), réglable par l'élément excentré (12).
  8. Dispositif suivant la revendication 7, caractérisé en ce que l'ensemble d'entraínement (15) est fixé au bâti de machine (1) par un ensemble de tringles à leviers (34, 35).
EP96915022A 1995-08-08 1996-05-07 Dispositif pour plier une tole metallique Expired - Lifetime EP0843605B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19529126 1995-08-08
DE19529126A DE19529126A1 (de) 1995-08-08 1995-08-08 Vorrichtung zum Biegen eines Bleches
PCT/EP1996/001885 WO1997005973A1 (fr) 1995-08-08 1996-05-07 Dispositif pour plier une tole metallique

Publications (2)

Publication Number Publication Date
EP0843605A1 EP0843605A1 (fr) 1998-05-27
EP0843605B1 true EP0843605B1 (fr) 1999-08-11

Family

ID=7768992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96915022A Expired - Lifetime EP0843605B1 (fr) 1995-08-08 1996-05-07 Dispositif pour plier une tole metallique

Country Status (9)

Country Link
US (1) US5842369A (fr)
EP (1) EP0843605B1 (fr)
JP (1) JPH11510434A (fr)
AT (1) ATE183119T1 (fr)
CA (1) CA2228599A1 (fr)
DE (2) DE19529126A1 (fr)
DK (1) DK0843605T3 (fr)
ES (1) ES2136997T3 (fr)
WO (1) WO1997005973A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1810761A1 (fr) * 2006-01-24 2007-07-25 Ralf Beger Dispositif de pliage de tôles
DE102008064227B3 (de) * 2008-12-22 2010-05-27 Ralf Beger Verfahren zum Abkanten eines Blechteils in einer Blechabkantvorrichtung und zur Durchführung dieses Verfahrens geeignete Blechabkantvorrichtung zum Abkanten eines Blechteils

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6855284B2 (en) * 2002-04-30 2005-02-15 Abb Technology Ag Process for bending a workpiece
EP1915224A4 (fr) * 2005-08-15 2011-04-20 Nela Ternes Register Group Inc Procedes et appareils d'elaboration de plaques lithographiques
DE102010009074A1 (de) * 2010-02-23 2011-08-25 Hans Schröder Maschinenbau GmbH, 82405 Schwenkbiegemaschine
AT515280B1 (de) * 2014-06-10 2015-08-15 Trumpf Maschinen Austria Gmbh Biegepresse mit Biegeeinheit sowie Verfahren zur Umformung
CN109789470B (zh) 2016-09-26 2022-02-25 通快机床两合公司 用于加工板状工件的工具和机床以及方法
PL3515617T3 (pl) 2016-09-26 2021-04-06 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Narzędzie i obrabiarka oraz sposób obróbki przedmiotów obrabianych mających postać płyt
DE102016118175B4 (de) * 2016-09-26 2018-08-23 Trumpf Werkzeugmaschinen Gmbh & Co. Kg Werkzeugmaschine und Verfahren zum Bearbeiten von plattenförmigen Werkstücken
CN109789465B (zh) * 2016-09-26 2022-02-11 通快机床两合公司 用于加工板状工件的工具和机床以及方法
CN111822553A (zh) * 2019-04-18 2020-10-27 中国石油大学(华东) 金属板材激光热成形拉弯新工艺
SE543695C2 (en) * 2019-10-15 2021-06-08 Cidan Machinery Sweden Ab A folding machine for folding sheet shaped material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942622C (de) * 1952-09-13 1956-05-03 Merklinger Maschinenfabrik G M Einrichtung zur allseitigen Verstellung der Biegewangen von Abkantmaschinen
US5259231A (en) * 1989-10-26 1993-11-09 Reinhardt Maschinenbau Gmbh Process for the two-directional bending of sheet metal
DE3935659C3 (de) * 1989-10-26 1997-01-02 Reinhardt Gmbh Maschbau Vorrichtung zum Biegen eines Bleches
JPH0437419A (ja) * 1990-05-31 1992-02-07 Amada Co Ltd 板材折曲げ加工機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1810761A1 (fr) * 2006-01-24 2007-07-25 Ralf Beger Dispositif de pliage de tôles
DE102008064227B3 (de) * 2008-12-22 2010-05-27 Ralf Beger Verfahren zum Abkanten eines Blechteils in einer Blechabkantvorrichtung und zur Durchführung dieses Verfahrens geeignete Blechabkantvorrichtung zum Abkanten eines Blechteils

Also Published As

Publication number Publication date
DE19529126A1 (de) 1997-02-13
ATE183119T1 (de) 1999-08-15
US5842369A (en) 1998-12-01
EP0843605A1 (fr) 1998-05-27
CA2228599A1 (fr) 1997-02-20
WO1997005973A1 (fr) 1997-02-20
DE59602734D1 (de) 1999-09-16
JPH11510434A (ja) 1999-09-14
DK0843605T3 (da) 2000-03-06
ES2136997T3 (es) 1999-12-01

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