EP1377395B1 - Machine de pliage, en particulier presse a estamper ou a plier, pourvue d'un outil inferieur reglable - Google Patents

Machine de pliage, en particulier presse a estamper ou a plier, pourvue d'un outil inferieur reglable Download PDF

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Publication number
EP1377395B1
EP1377395B1 EP02792863A EP02792863A EP1377395B1 EP 1377395 B1 EP1377395 B1 EP 1377395B1 EP 02792863 A EP02792863 A EP 02792863A EP 02792863 A EP02792863 A EP 02792863A EP 1377395 B1 EP1377395 B1 EP 1377395B1
Authority
EP
European Patent Office
Prior art keywords
lower tool
stop
bending machine
drive
tool
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
EP02792863A
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German (de)
English (en)
Other versions
EP1377395A1 (fr
Inventor
Gerald Koch
Thomas Gerber
Thomas Fehrenbach
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.)
EHT Werkzeugmaschinen GmbH
Original Assignee
EHT Werkzeugmaschinen 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
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Application filed by EHT Werkzeugmaschinen GmbH filed Critical EHT Werkzeugmaschinen GmbH
Publication of EP1377395A1 publication Critical patent/EP1377395A1/fr
Application granted granted Critical
Publication of EP1377395B1 publication Critical patent/EP1377395B1/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
    • B21D5/002—Positioning devices
    • 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 bending machine, in particular a die coder Press brake, with a lower tool and with a counter this vertically adjustable upper tool, one of the Tools one or more parallel cuts or notches and has a workpiece in through the movement of the upper tool such an incision or pressed into such a notch and is thereby bent, with the lower tool transversely adjustable to its longitudinal extent or across the bending line and the bending machine is at least one in the area of Level of the lower tool arranged and opposite in its distance this lower tool adjustable stop for the Workpiece.
  • Bending machines of the type mentioned above are widely known and an example of a bending machine according to the above Working principle is described in DE 198 40 563 C1.
  • the lower tool is a die with multiple cuts or notches - possibly with movable limits - Trained to different material thicknesses and / or to be able to take into account different bending angles.
  • It is also known to have several in one bending machine To provide work stations with the same top tool or are provided with various upper tools and have different lower tools, which compared to the or notches arranged differently on the upper tools and / or have deformation edges.
  • At least two are spaced apart for transverse adjustment of the lower tool Power packs required to make an exact parallel shift to allow.
  • the invention has for its object the mechanical effort for transverse displacement or transverse adjustment of the lower tool to diminish.
  • the bending machine defined at the beginning is used to solve this task characterized in that the lower tool directly or indirectly with the adjustment drive for the adjustable Stop can be detachably coupled, with which when the coupling is released the distance of the stop from the lower tool is adjustable is.
  • a possible embodiment of the invention can provide that the direct or indirect coupling between the lower tool and the drive for the stop by a in thrust contact with the stopable element can be produced. This means however, that the shift against a restoring force should take place or the stop on different, each other opposite places in thrust contact would also have to cause an opposite adjustment.
  • a releasable coupling is provided in both opposite directions of displacement of the lower tool is designed to act.
  • the Drive of the stop after production of the coupling mentioned can be moved in any direction to opposite To cause adjustment movements on the lower tool.
  • the coupling could be based on magnetic forces or on frictional engagement are based, however, for defined adjustment movements a positive coupling for detachable coupling of the lower tool or its holder with the drive for the stop be provided.
  • the or the stop fingers of the adjustable stop itself serve as coupling parts and by means of magnet, pin, projection or the like on the lower tool or - preferably - on its holder or at a counter opening arranged there attack releasably.
  • This represents a particularly simple way represents the lower tool or its holder indirectly if necessary to couple with the drive for the adjustable stop.
  • the lower tool Because of the adjustability according to the invention, which is advantageous Way can be designed continuously, the lower tool have several parallel incisions and / or notches, since these are all brought into the use position in a simple manner can be.
  • a specific embodiment of the invention can provide that on the lower tool or its holder transversely to its longitudinal extent, in particular at right angles to the bending line and in particular such as horizontal bars or strips attached, are in particular firmly connected to which the drive for the stop or a part connected to this drive can be detachably coupled, in particular clamped. Is the clutch or clamping released, so the drive for the stop adjust this across the bending line. But should that be Only the clamps on the lower tool need to be adjusted corresponding rods are put into operation, after which a Actuation of the drive in turn adjusts these clamps then the corresponding poles or strips and thus also that Take the lower tool with you.
  • the clamp for gripping one with the lower tool or its Bracket or bar connected to this bracket with a Grasp the guide opening or in the form of pliers even in the released position and in the released position relative to the rod or The bar can be moved.
  • this clamp or coupling is placed on part of the stop is relative to which the stop itself, for example can be height adjustable so that the functions of the Stop even from the temporary clutch with the lower tool stay independent.
  • Those engaging the lower tool or its holder Poles or strips can be placed in a second clamping device intervene to which they are in the open position of this second clamping device are relatively adjustable, and the one selected Position of the tool closed and when adjusting the tool with the help of the first clamp or clamping device are open. So with a second clamping device a set position of the lower tool on simple Way and on the same connecting means, namely the rods or bars attacking are provided, which is a minor requires mechanical effort and a small footprint.
  • a connecting means for detachable coupling of the lower tool or its holder with the drive of the stop on one of the two parts with a swivel arm a projection or with a recess and on the other Part of a recess or a projection for releasable connection be provided with the swivel arm.
  • this clutch expediently on part of the drive of the stop provided that itself only transversely to the lower tool is adjusting, while other adjustment movements of the stop, for example height adjustments relative to this Part are feasible.
  • the swivel arm can be attached to the drive for the stop in one in particular vertical level provided pivoted up and down and it can be with a pin in a perforation on a counter bar be pivoted in with the lower tool or its holder is connected, or the swivel arm can be a Have holes that have a projection or in the use position Pin on one with the lower tool or its holder connected counterpart releasably engages.
  • a bending machine designated as a whole is 1 as a die coder Press brake trained. It shows an according to Figure 1 possibly several sections existing lower tool 2 and an upper tool adjustable against this from top to bottom 3 on.
  • the one or more lower tools 2 have according to the figures 2 to 7 one or more, in these exemplary embodiments two parallel cuts or notches 4 and by the movement of the upper tool 3 can be a not shown Workpiece in a precisely below the upper tool 3 such notch 4 is pressed and thereby bent.
  • a bracket 5 for the lower tool 2 is still to be described Way transversely to the longitudinal extent of the lower tool 2 and across the bend line to match the parallel notches 4 adjustable so that either one or the other notch 4 comes to lie exactly below the upper tool 3, so that the bending of a workpiece optionally on the different ones Notches 4 can be performed.
  • the lower tools 2 have thereby even notches 4 on both sides and can also be 180 ° around their Longitudinal axis are used rotated.
  • the bending machine 1 also has one in the area of Level of the lower tool 2 arranged and at a distance compared to this lower tool 2 and also in height adjustable stop 6 for the workpiece, not shown.
  • This stop 6 can be seen both in Figure 2 and in Figures 1, 3 and 6.
  • a carriage 7 is provided transversely to the bending line, its possible Back and forth movement in Figures 3, 5, 6 and 7 through a double arrow is shown.
  • the lower tool 2 with the adjustment drive and the slide 7 for the adjustable stop 6 directly or indirectly detachable can be coupled so that with the help of this drive for the stop 6, ie with the help of the slide 7, the lower tool 2 can be adjusted transversely to itself, while loosened Coupling with this adjustment drive and the carriage 7 the distance of the stop 6 from the lower tool 2 in a known manner Way is adjustable. It belongs to this adjustment drive 3, 5, 6 and 7 also a spindle 8 or another Drive for linear movements, with which the carriage 7 back and forth can be moved here.
  • connection or coupling between the lower tool 2 or a bracket 5 and the drive 7 for the stop 6 could be made by sliding contacts for what with the stop 6 or its drive 7 a corresponding Element is provided.
  • a detachable coupling to be described in more detail is provided, the two opposite directions of displacement effective according to the double arrows in Figures 3, 5, 6 and 7 is.
  • Each is a positive or non-positive Connection or coupling for detachable coupling of the lower tool 2 or its holder 5 with the drive 7 for the stop 6 provided.
  • the exemplary embodiments show lower tools 2 with two parallel cuts or Notches 4, however, could be more and / or shaped differently Incisions may be provided since the adjustable drive or Carriage 7 for the stop 6 is also infinitely adjustable.
  • the bars 7a are relative to these second ones Clamping devices 11 displaceable or adjustable, if these Clamps 11 are open.
  • the lower tool 2 has one Get the desired position, this second clamping device 11 are closed to fix this position.
  • the first clamp or clamping device 9 can then be opened, to the stops 6 with respect to the fixed lower tool 2 to be able to adjust their distance from the lower tool 2.
  • the clamp 9 and the clamping device 11 are only schematic indicated, that is, the actual jaws or Clamping elements are arranged inside the associated housing.
  • the one connected to the drive or carriage 7 Terminal 9 is spatially arranged so that this carriage 7 is next to the rod 7a and to this carriage 7 a guide 12 can be moved up and down, which the actual storage 13 of the stop 6 carries on which the Stop 6 can also be moved in the longitudinal direction.
  • the Stamp 12 also allows the known height adjustment of the stop 6 regardless of that the drive 7 for the stop 6 too can be used to adjust the lower tool 2.
  • FIG. 6 and 7 is a connection means for releasable Coupling the lower tool 2 or its holder 5 with the Drive 7 of the stop 6 on one of the two parts, namely on the drive 7, a swivel arm 14 with a projection 15 and on the other part, namely one directly or indirectly with the lower tool 2 connected counterpart 16 has a recess 17 provided for releasable connection to the swivel arm 14 are, the projection 15 of the pivot arm 14 into the recess 17 fits.
  • the swivel arm 14 is on the drive 7 for the back and forth adjustment of the stop 6 across up and down to the bending line in an approximately vertical plane provided pivotable and formed with a pin Projection 15 in a matching recess 17 on the counterplate trained counterpart 16 pivoted, the two positions of the swivel arm 14 with different lines are shown.
  • the clutch position with an approximately horizontal Arrangement of the swivel arm 14 is solid Lines and the disengaged position with broken Dashes shown.
  • axis for moving of lower tools 2 are transverse to their extension for the bending machine 1 components of the existing stop system, namely a drive part or carriage 7 used, the directly or indirectly detachable with the lower tool 2 can be coupled. This allows this existing axis of the stop system also used for the adjustment of the tool become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Press Drives And Press Lines (AREA)

Claims (11)

  1. Plieuse (1), en particulier presse à matricer ou presse plieuse, avec un outil inférieur (2) et avec un outil supérieur (3) pouvant être déplacé verticalement par rapport à celui-ci, l'un (2) des outils possédant une ou plusieurs encoches ou rainures parallèles (4) et une pièce travaillée étant, par le mouvement vertical de l'outil supérieur (3), pressée dans une telle encoche ou dans une telle rainure (4) et ainsi pliée, l'outil inférieur (2) pouvant être réglé transversalement à son développement longitudinal ou transversalement à la ligne de pliage, et la plieuse (1) possédant au moins une butée (6) pour la pièce travaillée, butée qui est disposée dans la région du plan de l'outil inférieur (2) et dont la distance par rapport à cet outil inférieur (2) peut être réglée, caractérisée en ce que l'outil inférieur (2) est accouplé directement ou indirectement, de manière libérable, à l'entraínement de réglage pour la butée réglable (6) au moyen duquel, lorsque l'accouplement est libéré, la distance entre la butée et l'outil inférieur peut être réglée.
  2. Plieuse selon la revendication 1, caractérisée en ce que l'accouplement direct ou indirect entre l'outil inférieur (2) et l'entraínement (7) pour la butée (6) peut être réalisé par un élément pouvant être amené en contact de poussée avec la butée.
  3. Plieuse selon la revendication 1 ou 2, caractérisée en ce qu'il est prévu un accouplement libérable qui est conçu à action dans les deux sens de translation mutuellement opposés de l'outil inférieur.
  4. Plieuse selon l'une des revendications 1 à 3, caractérisée en ce qu'il est prévu un accouplement en engagement positif ou à force pour l'accouplement libérable de l'outil inférieur (2) ou de son support (5) avec l'entraínement (7) pour la butée (6).
  5. Plieuse selon l'une des revendications 1 à 4, caractérisée en ce que le ou les doigts de butée de la butée réglable servent eux-mêmes d'éléments d'accouplement et agissent de manière libérable, au moyen d'un aimant, d'une broche, d'une saillie ou analogue, sur l'outil inférieur ou sur son support ou sur une ouverture complémentaire qui y est disposée.
  6. Plieuse selon l'une des revendications 1 à 5, caractérisée en ce que l'outil inférieur (2) présente plusieurs encoches et/ou rainures parallèles (4).
  7. Plieuse selon l'une des revendications 1 à 6, caractérisée en ce que des tiges (7a) ou des barres sont fixées, notamment sont assemblées fixement à l'outil inférieur (2) ou à son support (5), lesquelles s'étendent transversalement à son développement longitudinal, notamment perpendiculairement à la ligne de pliage et notamment approximativement horizontalement, tiges ou barres auxquelles l'entraínement (7) pour la butée (6) ou un élément assemblé à cet entraínement peut être accouplé de manière libérable, par exemple par serrage.
  8. Plieuse selon l'une des revendications 1 à 7, caractérisée en ce que le moyen de serrage (9) destiné à engager une tige ou barre assemblée à l'outil inférieur (2) ou à son support (5) s'engage autour de celle-ci par une ouverture de guidage (10) ou en forme de pince même en position libérée et peut, en position libérée, être déplacé en translation par rapport à la tige (7a) ou barre.
  9. Plieuse selon la revendication 8, caractérisée en ce que les tiges (7a) ou barres agissant sur l'outil inférieur (2) ou sur son support (5) s'engagent dans un deuxième dispositif de serrage (11), par rapport auquel elles peuvent être déplacées dans la position ouverte de ce deuxième dispositif de serrage (11) et qui est fermé dans une position présélectionnée de l'outil (2) et ouvert lors du réglage de l'outil à l'aide du premier dispositif de serrage (9).
  10. Plieuse selon l'une des revendications 1 à 7, caractérisée en ce que sont prévus, comme moyens d'assemblage pour l'accouplement libérable de l'outil inférieur (2) ou de son support (5) avec l'entraínement (7) de la butée (6), sur l'un des deux éléments, un bras pivotant muni d'une saillie (15) ou d'un évidement et, sur l'autre élément (16), un évidement (17) ou une saillie pour l'assemblage libérable avec le bras pivotant (14).
  11. Plieuse selon la revendication 10, caractérisée en ce que le bras pivotant (14) est prévu sur l'entraínement (7) pour la butée (6) avec possibilité de pivotement vers le haut et vers le bas dans un plan notamment vertical et peut, par un tenon (15), être rentré par pivotement dans un évidement (17) sur une contre-barre ou contre-plaque (16) qui est assemblée à l'outil inférieur ou à son support, ou en ce que le bras pivotant possède un perçage qui, en position d'utilisation, s'engage de manière libérable sur une saillie ou un tenon prévu(e) sur un contre-élément assemblé à l'outil inférieur ou à son support.
EP02792863A 2001-12-21 2002-12-03 Machine de pliage, en particulier presse a estamper ou a plier, pourvue d'un outil inferieur reglable Expired - Lifetime EP1377395B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10163498A DE10163498C1 (de) 2001-12-21 2001-12-21 Biegemaschine, insbesondere Gesenk- oder Abkantpresse, mit einem verstellbaren Unterwerkzeug
DE10163498 2001-12-21
PCT/EP2002/013656 WO2003053605A1 (fr) 2001-12-21 2002-12-03 Machine de pliage, en particulier presse a estamper ou a plier, pourvue d'un outil inferieur reglable

Publications (2)

Publication Number Publication Date
EP1377395A1 EP1377395A1 (fr) 2004-01-07
EP1377395B1 true EP1377395B1 (fr) 2004-09-08

Family

ID=7710530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02792863A Expired - Lifetime EP1377395B1 (fr) 2001-12-21 2002-12-03 Machine de pliage, en particulier presse a estamper ou a plier, pourvue d'un outil inferieur reglable

Country Status (6)

Country Link
US (1) US7260974B2 (fr)
EP (1) EP1377395B1 (fr)
AT (1) ATE275448T1 (fr)
AU (1) AU2002358582A1 (fr)
DE (2) DE10163498C1 (fr)
WO (1) WO2003053605A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI20110331A1 (it) * 2011-12-22 2013-06-23 Codatto Internat S P A Macchina industriale per la piegatura di elementi metallici piani
WO2018049056A1 (fr) 2016-09-09 2018-03-15 Mate Precision Tooling, Inc. Système de mise en prise d'outil de presse-plieuse
AT519644B1 (de) * 2017-07-05 2018-09-15 Trumpf Maschinen Austria Gmbh & Co Kg Hinteranschlageinheit sowie damit ausgestattete Fertigungsanlage

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7139889U (de) 1972-02-17 Amada Co Ltd Hydraulische Abkantpresse
AT258674B (de) 1963-10-11 1967-12-11 Haemmerle Ag Maschf Biegebearbeitungseinrichtung
CH432437A (de) 1963-10-11 1967-03-31 Haemmerle Ag Biegebearbeitungseinrichtung
US3812695A (en) 1970-05-25 1974-05-28 Hurco Mfg Co Inc Back gauge for press brake
US3675463A (en) * 1971-03-29 1972-07-11 Niagara Machine & Tool Works Shiftable press brake die
US3874205A (en) * 1974-02-19 1975-04-01 Hurco Mfg Co Inc Digitally controlled multiple depth stop and return stroke limit control for press brakes
JPS5456969A (en) 1977-10-14 1979-05-08 Komatsu Mfg Co Ltd Automatic metal mold exchanging apparatus of press brake
US4411150A (en) 1981-10-21 1983-10-25 Houdaille Industries, Inc. Backgauge structure
DE3745026C2 (de) 1986-06-20 1997-03-20 Amada Co Biegepresse
DE3745067C2 (de) * 1986-06-20 1997-03-20 Amada Co Biegepresse
DE8628989U1 (fr) 1986-10-30 1987-02-05 Ludwig Boschert Maschinen- Und Apparatebau Gmbh & Co Kg, 7850 Loerrach, De
EP0530375B1 (fr) 1991-03-22 1995-07-05 Amada Company Limited Systeme pour travailler de la matiere en plaque
DE9315209U1 (de) * 1993-10-08 1995-02-16 Trumpf Gmbh & Co Abkantpresse
JP3431049B2 (ja) 1995-04-27 2003-07-28 株式会社小松製作所 曲げ加工機
WO1998005442A1 (fr) 1996-08-05 1998-02-12 Amada Co., Ltd. Dispositif de butee arriere
DE19840563C1 (de) * 1998-09-05 1999-12-09 Eht Werkzeugmaschinen Gmbh Vorrichtung zum Gesenkbiegen, zum freien Biegen oder zum Präge-Biegen mit einer eine Kerbe aufweisenden Matrize und mit einem Stempel
ATE460998T1 (de) 1999-01-13 2010-04-15 Amada Co Ltd Biegepresssystem

Also Published As

Publication number Publication date
US7260974B2 (en) 2007-08-28
WO2003053605A1 (fr) 2003-07-03
DE50200969D1 (de) 2004-10-14
EP1377395A1 (fr) 2004-01-07
AU2002358582A1 (en) 2003-07-09
US20050050937A1 (en) 2005-03-10
ATE275448T1 (de) 2004-09-15
DE10163498C1 (de) 2003-02-20

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