EP2845663B1 - Presse plieuse avec un outil de cintrage composé de plusieurs éléments d'outil - Google Patents

Presse plieuse avec un outil de cintrage composé de plusieurs éléments d'outil Download PDF

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Publication number
EP2845663B1
EP2845663B1 EP14183721.1A EP14183721A EP2845663B1 EP 2845663 B1 EP2845663 B1 EP 2845663B1 EP 14183721 A EP14183721 A EP 14183721A EP 2845663 B1 EP2845663 B1 EP 2845663B1
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EP
European Patent Office
Prior art keywords
tool
bending
working
ancillary
tool element
Prior art date
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Active
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EP14183721.1A
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German (de)
English (en)
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EP2845663A1 (fr
Inventor
Egon Danninger
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Trumpf Maschinen Austria GmbH and Co KG
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Trumpf Maschinen Austria GmbH and Co KG
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Publication of EP2845663A1 publication Critical patent/EP2845663A1/fr
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    • 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
    • B21D5/0227—Length adjustment of the die
    • 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

Definitions

  • the invention relates to a bending press with a bending tool, in particular a bending punch, as described in claim 1.
  • a press brake for metal sheets has become known, which has a tool for bending the metal sheet.
  • the tool is formed by a mold and a pressure device opposite the mold.
  • the printing device has a plurality of first segments, which are aligned along the bending direction of the metal sheet.
  • the control device is such that each of the first segments is driven to perform longitudinal movement along the bending direction of the metal sheet so that the longitudinal dimensions of the printing device correspond to the length dimensions of the fold to be provided in the metal sheet.
  • the printing device further comprises a plurality of second segments, wherein by means of the control unit each of the second segments is individually drivable to insert it between the first segments.
  • the second segment is aligned with the first segments along the bending direction of the metal sheet.
  • the longitudinal dimension of the printing device has at least one first segment and at least one second segment, which together corresponds to the fold to be provided in the metal sheet.
  • the first segments each have horns on the sides facing away from each other.
  • the at least one second segment is arranged between the first segments to form a continuous working or bending edge.
  • the at least one second segment is swung out between the first segments and the length dimension of the printing device is reduced by longitudinal adjustment of the first segments into the free space formed.
  • the EP 0 251287 A1 describes a bending machine with a device for changing the tool length.
  • the upper punch comprises a plurality of pivotable punch segments and a plurality of split punch segments, which are arranged in alignment to the left and right of the swing-out punch segments and slidably mounted on the ram.
  • a rotatable shaft which with drive means in drive connection stands, selected, swinging punch segments can be moved from their aligned position to a pivoted position. This allows the tool length to be changed.
  • the directly adjacent the swing-out punch segments adjacent arranged split punch segments have horns on both sides.
  • a horn tool manufactured by Trumpf has a basic tool connected to the tool holder of the bending press, with which a movable horn connected thereto is adjustably connected.
  • the tool part carrying the horn In the bending position or working position, the tool part carrying the horn is supported on the main body in a load-removing manner, in which the Ausfädel ein the horn-carrying tool part is pivoted by means of the pivot lever in a position relative to the main body.
  • the total height of the bending tool, in particular of the punch is increased in the vertical direction, but the width of the bending tool is at least reduced by the extent of the projecting laterally beyond the main body horn.
  • the advantage resulting from the features of claim 1 lies in the fact that a certain amount of free space can already be created between the immediately adjacent tool elements by the respective projecting of the two horns over the base body. This can subsequently serve for receiving the tool auxiliary element and / or the guide device, in particular its guide body. Furthermore, can be achieved so that in the work area a greater working length can be created and the base body has a lower longitudinal extent in the direction of the auxiliary working edge. Thus, it becomes possible to increase the amount of the receiving space formed between the immediately adjacent tool members and the gap. As a result, a complete removal of the tool support element or the guide device between the basic bodies of the tool elements is not necessarily necessary.
  • a predetermined adjustment can be determined by the guide with the guide device.
  • the automated adjustment of the tool accessory can be further facilitated.
  • an independently formed guide unit can thus be created for the tool auxiliary element between the directly adjacent tool elements. This serves for a perfect guidance of the tool auxiliary element between the working position and the Ausfädel too.
  • the adjusting device can also be used to automatically position the tool auxiliary element in at least one of the positions.
  • an embodiment according to claim 5 proves advantageous because so in the Ausfädel ein a compact unit of the Biegewerkezugs can be created. As a result, the available free space can be used completely to accommodate the guide body.
  • the positioning effort of the tool support element is minimized or completely avoided, at least in the working position.
  • additional activities otherwise incurred for the exact alignment and adjustment of the tool support element with respect to the tool elements can be avoided.
  • a faster change between the two positions, namely the Ausfädel too and the working position can be achieved.
  • the support device can be tuned or formed on a variety of operating conditions and the associated adjustment paths.
  • a manufacturing plant 1 is shown in a highly simplified schematic representation, which is formed in the present case for the bending of sheet metal to be produced from workpieces 2 by means of swaging. But it would also be possible to use a folding machine in the manufacturing plant 1 to carry out the bending process.
  • the manufacturing plant 1 used for bending in the present case comprises a bending press 3, in particular a press brake or press brake, for producing the workpieces 2 or workpieces between bending tools 4 which are adjustable relative to one another, such as bending dies 5 and bending dies 6.
  • a machine frame 7 of the bending press 3 consists for example of a bottom plate 8 on the vertically upstanding, spaced from each other and mutually parallel side cheeks 9, 10 are arranged. These are preferably connected to each other by a solid, formed for example from a sheet metal part cross member 11 at their distance from the bottom plate 8 end portions.
  • the side cheeks 9, 10 are approximately C-shaped to form a free space for the forming of the workpiece 2, wherein a fixed, in particular on the bottom plate 8 upstanding pressing beam 13 is fixed to front end faces 12 of bottom flanges of the side cheeks 9, 10.
  • This stationary arranged and fixed pressing beam 13 may also be referred to as a press table, are arranged on the parts of the bending tool 4 and also held.
  • At front end faces 14 of the leg plate 8 remote leg is in linear guides 15 a to the table beam forming press bar 13 relatively adjustable further pressing bar 16, in particular a pressure bar, guided guided.
  • On opposite, mutually parallel end faces 17, 18 of the two pressing bars 13, 16 tool holders 19, 20 are arranged for assembly with the bending tools 4.
  • the one or more bending tools 4 can also be supported with the interposition of an adapter not shown on the tool holders 19, 20.
  • the drive means 22 are preferably motorized spindle drives 26, as they are generally known, of which adjusting means 27 for a reversible actuating movement of the upper beam formed by the pressure bar 16 with this, for example, are drive-connected.
  • the manufacturing plant 1 can also be simplified here in the Fig. 2 comprise manipulator 28, which at least a piece thereof removes from a schematically indicated supply stack 29 of sheets to be deformed orproofkantenden and spends in the work area of the bending press 3.
  • the manipulator 28 in turn comprises a gripping tongs 30, shown in a simplified manner, which in turn has gripping fingers 31, 32.
  • the gripping fingers 31, 32 each have clamping surfaces on the side facing the workpiece 2 to be produced.
  • the gripper fingers 31, 32 of the gripping tongs 30 is a corresponding gripping and later ensured due to the clamping movement sufficient support for the workpiece to be produced from the sheet 2.
  • the two pressing bars 13, 16, in particular their tool holders 19, 20, or the bending tool 4 held thereon with its bending punch 5 and bending die 6, when viewed in the longitudinal direction of the pressing bars 13, 16 a between them define extending work plane 33.
  • the working plane 33 preferably runs centrally with respect to the press beams 13, 16 or the tool holders 19, 20 arranged on them.
  • a vertically aligned plane is understood here, in which also a plane defined by the bending tool 4 Bending region 34 is arranged or formed.
  • the bending region 34 lies mostly in the working plane 33 and is formed or defined by the cooperating components of the bending tool 4, namely the bending punch 5 and the bending die 6.
  • the bending region 34 usually forms a preferably rectilinear bending line on the workpiece 2 to be produced, wherein on both sides of each of these legs 35, 36 form due to the bending process carried out.
  • the two legs 35, 36 between them enter a bending angle 37 a.
  • This bending angle 37 is measured in a reference plane 38 aligned perpendicular to the bending line, as in both Fig. 1 and 2 is indicated.
  • the reference plane 38 for its part, is furthermore preferably also aligned with respect to the working plane 33 in the vertical direction.
  • the horns 44 serve to be able to produce a continuous bending edge in the case of workpieces 2 formed in the form of boxes, up to the corner regions of the workpiece 2 arranged at a distance from each other.
  • the working edges 42 formed on the tool elements 39, 40 should also be designed to run continuously without interruption, at least in the working position of the bending tool 4.
  • the individual working edges 42 are to be formed almost continuously without interruption, except for the region of the joint of adjoining tool elements 39, 40.
  • the bending tool 4 forms in its working area 41 a continuous associated unit.
  • a box-shaped workpiece 2 which may also have a mostly parallel to the floor extending inwardly projecting wall portion in the open, upper end
  • the threading out of such a workpiece 2 from the bending tool 4 is a potential problem.
  • the unthreading could possibly be achieved by arranging the box-like workpiece 2 obliquely or diagonally with respect to the working edges 42 after the bending operation has taken place, thus enabling the threading out of the bending tool 4.
  • the at least two tool elements 39, 40 are brought into a so-called unloading position for the workpiece 2 to be produced.
  • the distance 45 in the working edges 42 bridging tool support 46 is at least partially removed, whereupon then the distance 45 between the first tool element 39 and the at least second tool element 40 in the range of the working edges 42 is reduced.
  • An intermediate position is in the Fig. 4 shown, wherein in the Fig. 5 the tool-assisting element 46 has been completely removed and the two tool elements 39, 40 have been displaced relative to one another at least in the region of their working edges 42 so far that the two tool elements 39, 40 abut one another.
  • the total length of the tool elements 39, 40 of the bending tool 4 in the region of the working edges 42 is shortened to a maximum length, which the longitudinal extent of Auxiliary working edge 47 corresponds. It would also be possible that the bending tool 4 in its shortened Ausfädel ein can also be used for a further bending operation with a shortened bending length or a shortened bending region 34.
  • the tool-assisting element 46 can be connected or coupled to an adjusting device 48, by means of which the tool-assisting element 46 can be adjusted from its working position into the unwinding position for the workpiece 2 to be produced.
  • An adjustment device 48 indicated in a simplified manner is arranged on the rear side of the bending press 3, that is to say on that side of the bending press 3 which is averted by an operator, in particular its pressing bars 13, 16. In dashed lines an intermediate position of the tool 46 is indicated.
  • corresponding guide devices can additionally be provided, wherein the adjusting movement of the adjusting device 48 is indicated only in a simplified manner by arrows.
  • This adjusting device 48 can also be referred to as Ausfädelvorraum, which is arranged behind the press bar 13, 16.
  • the adjustment of the adjustment 48 can be done for example by means of a folding operation but also by pushing and / or pivoting and / or turning the tool 46.
  • the adjusting device 48 thus performs the displacement of the tool support 46 between the working position and the Ausfädel ein.
  • the tool-assisting element 46 is held locked on at least one of the immediately adjacent tool elements 39, 40.
  • This arrested holder of the tool auxiliary element 46 serves to keep it stationary during the bending operation relative to at least one of the directly adjacently arranged tool elements 39, 40. This makes it possible to perform a perfect bending operation of the workpiece 2 to be produced, even with the tool-assisting element 46 together with the tool elements 39, 40.
  • the tool support member 46 not only a mutual positioning of the tool support member 46 with respect to the adjacent tool elements 39, 40 to take place, but it can also be a power transmission from the press bar 13, 16 carried out on the entire bending tool.
  • the tool elements 39, 40 are each independent components and may comprise the main body 43 and at least one, preferably two, fixedly connected horns 44, which are connected together and rigidly connected to the pressing beam 13, 16 or held thereto.
  • the tool auxiliary 46 may be formed with a same continuous longitudinal extent in the direction of its auxiliary working edge 47.
  • the orientation of the guide 56 or guideway does not necessarily have to be rectilinear, but it can also be an adjustment in the vertical direction with respect to the working plane 33 in addition to done. Thus, for example, during the adjustment of an exemption of the auxiliary working edge 47 can be achieved.
  • the guide device 55 has a guide body 57 which, in the direction of the auxiliary working edge 47, has legs 58 arranged at a distance from one another, which extend on both sides of the base body 53. Furthermore, the guide body 57 also includes a connecting web 59 connecting the two legs 58 on the side away from the auxiliary working edge 47. Thus, a one-piece component is created as a guide body 57, which is arranged here between the previously described end faces 49 of the tool elements 39, 40.
  • the guide device 55 comprises between the base body 53 of the tool support member 46 and at least one of the two legs 58 cooperating guide elements 60, 61.
  • the guide elements 60, 61 may be, for example, pin-like or web-like projections as well as guideways trained, in which engages the pin or web. This may also be sliding and / or roller guides in a known embodiment.
  • the connecting web 59 is preferably to be selected with the same longitudinal extent in the same direction. This makes it possible, as in the Fig. 8 can be seen, even in the shortened Ausfädel ein of the bending tool 4, the workpiece to be produced 2 easy to unthread.
  • the tool auxiliary element 46 is made of in the Fig. 7 shown employment in the in Fig. 8 shifted to shortened Ausfädel ein shifted.
  • 57 cooperating stop members 64, 65 may be provided between the base body 53 of the tool support member 46 and at least one of the legs 58 of the guide body 57. These stop elements 64, 65 serve to limit the adjustment path of the tool auxiliary element 46 to be performed relative to the guide body 57. Thus, these stop elements 64, 65 may be formed or aligned with each other so that they define the aligned alignment of the working edge 42 and the auxiliary working edge 47 when the working position of the tool elements 39, 40 and the tool support 46.
  • the stop elements 64, 65 may be formed by the previously described guide elements 60, 61 of the guide 56. Furthermore, it would also be conceivable to provide a plurality of guide elements 60, 61 and / or a plurality of stop elements 64, 65 so as to achieve an exact, pivot-free guidance and / or end position of the tool support element 46 relative to the guide body 57. In addition, the guide elements 60, 61 and / or the stop elements 64, 65 also serve to define a defined end position of and associated therewith the mutually aligned alignment of the working edges 42 and the auxiliary working edge 47.
  • Fig. 10 a further embodiment of the bending tool 4 is shown, again for like parts, the same reference numerals or component designations as in the preceding Fig. 1 to 9 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1 to 9 referred or referred.
  • a support device 66 is arranged between the base body 53 of the tool support member 46 and the connecting web 59 of the guide body 57. This makes it possible to position the tool-assisting element 46 in its working position relative to the guide body 57 in the adjustment direction along the guide 56.
  • the supporting device 66 serves to hold the tool-assisting element 46 at least in its working position, relative to the immediately adjacent tool elements 39, 40, to fix it in a stationary manner or to fix it.
  • an adjustment device 48 (not shown here) may in turn serve, which may be provided in addition to the support device 66.
  • the support device 66 here comprises a plurality of support elements 67, which are formed, for example, by pivotable levers. These may be held, for example, on the connecting web 59 and / or on the legs 58 of the guide body 57 or be mounted thereon. Again, indicated by arrows that the support effect of the support members 67 is first set aside in the working position tool assist 46 to then perform the adjustment or displacement of the tool 46 from its working position in the Ausfädel ein the bending tool 4.
  • the support member 67 may also be formed by an adjusting spindle, rack or the like.

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

Claims (8)

  1. Presse plieuse (3), plus particulièrement presse de cintrage, pour le cintrage de pièces (2) à fabriquer en tôle le long d'une zone de pliage (34), avec des barres de presse (13, 16), au niveau desquelles un outil de pliage (4), plus particulièrement un poinçon de pliage (5) et une matrice de pliage (6), est maintenu, cet outil de pliage (4) étant constitué d'un premier élément d'outil (39) ainsi que d'au moins un deuxième élément d'outil (40) et les éléments d'outil (39, 40) sont disposés l'un derrière l'autre dans la direction longitudinale de la zone de pliage (34), chacun d'eux comprenant, dans sa zone de travail (41), des arêtes de travail (42) disposées chacune dans un plan de travail (33) et au moins un des éléments d'outil (39, 40) étant conçu, dans cette zone de travail (41), avec une corne (44) en saillie, dans la direction longitudinale de l'arête de travail (42) par rapport à son corps de base (43), sur le côté opposé à l'autre élément d'outil (40, 39), au-delà de celui-ci, et les éléments d'outil (39, 40) étant fixés de manière coulissante longitudinalement sur la barre de presse (13, 16), le premier élément d'outil (39) et l'au moins un deuxième élément d'outil (40) étant disposés, dans une position de travail de l'outil de pliage (4), au niveau de leurs arêtes de travail (42), dans la direction longitudinale de celles-ci avec une distance (45) entre eux et, entre les éléments d'outil (39, 40), est disposé au moins un élément auxiliaire d'outil (46), comblant la distance (45) au moins au niveau des arêtes de travail (42), qui comprend une arête de travail auxiliaire (47) alignée par rapport aux arêtes de travail (42) des éléments d'outil (39, 40), qui s'étendent de manière immédiatement adjacente à celle-ci, moyennant quoi, dans une position de retrait pour la pièce (2) à fabriquer, l'élément auxiliaire d'outil (46) comblant la distance au niveau des arêtes de travail (42) étant retiré et la distance (45) entre le premier élément d'outil (39) et l'au moins un deuxième élément d'outil (40) est réduite au niveau de leurs arêtes de travail (42), caractérisé en ce que le premier élément d'outil (39) et l'au moins un deuxième élément d'outil (40) comprennent chacun dans leurs zones de travail (41), au niveau de côtés (49) orientés les uns vers les autres, une autre corne (44) en saillie au-delà de la face frontale (49) du corps de base (43) vers le côté orienté vers l'autre élément d'outil (40, 39) et en ce que l'élément auxiliaire d'outil (46) comprend un corps de base (53) ainsi que des cornes auxiliaires (54) en saillie des deux côtés dans la zone de travail (41) au-delà du corps de base (53) en direction de l'arête de travail auxiliaire (47) et en ce que le corps de base (53) de l'élément auxiliaire d'outil (46) est guidé dans un guidage (56), orienté dans une direction parallèle au plan de travail (33) ainsi que dans une direction perpendiculaire à l'arête de travail auxiliaire (47), d'un dispositif de guidage (55) et en ce que le dispositif de guidage (55) comprend un corps de guidage (57) avec des montants (58), disposés à une certaine distance entre eux en direction de l'arête de travail auxiliaire (47), qui s'étendent des deux côtés du corps de base (53) et les deux montants (58) sont reliés entre eux sur le côté opposé à l'arête de travail auxiliaire (47), par l'intermédiaire d'une nervure de liaison (59) et en ce que le corps de guidage (57) est disposé, aussi bien dans la position de travail que dans la position de retrait, entre les deux éléments d'outil (39, 40).
  2. Presse plieuse (3) selon la revendication 1, caractérisée en ce que, dans la position de travail, dans la zone de travail (41) du premier élément d'outil (39) et de l'au moins un deuxième élément d'outil (40) ainsi que de l'élément auxiliaire d'outil (46), les arêtes de travail (42) et l'arête de travail auxiliaire (47) sont disposées directement l'une derrière l'autre.
  3. Presse plieuse (3) selon la revendication 1 ou 2, caractérisée en ce que l'élément auxiliaire d'outil (46) est relié avec un dispositif de déplacement (48) au moyen duquel l'élément auxiliaire d'outil (46) peut être déplacé de sa position de travail vers la position de retrait pour la pièce à fabriquer (2).
  4. Presse plieuse (3) selon l'une des revendications 1 à 3, caractérisée en ce que, entre le corps de base (53) et au moins un des deux montants (58) sont prévus des éléments de guidage (60, 61) interagissant entre eux.
  5. Presse plieuse (3) selon l'une des revendications 1 à 4, caractérisée en ce qu'une somme de longueurs (62) des deux cornes (44), orientées l'une vers l'autre, des éléments d'outil (39, 40) en direction des arêtes de travail (42) correspond à au moins une dimension extérieure (63) des deux montants (58) disposés à une certaine distance entre eux en direction de l'arête de travail auxiliaire (47).
  6. Presse plieuse (3) selon l'une des revendications 1 à 5, caractérisée en ce que, entre le corps de base (53) de l'élément auxiliaire d'outil (46) et au moins un des montants (58) du corps de guidage (57), sont prévus des éléments de butée (64, 65) interagissant entre eux, qui déterminent, lorsque la position de travail des éléments d'outil (39, 40) ainsi que de l'élément auxiliaire d'outil (46) est atteinte, l'orientation alignée entre elles des arêtes de travail (42) et de l'arête de travail auxiliaire (47).
  7. Presse plieuse (3) selon l'une des revendications 1 à 6, caractérisée en ce que, entre le corps de base (53) de l'élément auxiliaire d'outil (46) et la nervure de liaison (59) du corps de guidage (57), est disposé un dispositif d'appui (66) qui maintient l'élément auxiliaire d'outil (46) dans sa position de travail par rapport au corps de guidage (57) dans la direction de déplacement le long du guidage (56).
  8. Presse plieuse (3) selon la revendication 7, caractérisée en ce que le dispositif d'appui (66) comprend au moins un élément d'appui (67) qui est sélectionné dans le groupe constitué d'un levier excentrique, d'un levier pivotant, d'une broche de réglage, d'une crémaillère.
EP14183721.1A 2013-09-10 2014-09-05 Presse plieuse avec un outil de cintrage composé de plusieurs éléments d'outil Active EP2845663B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50565/2013A AT514788B1 (de) 2013-09-10 2013-09-10 Biegewerkzeug aus mehreren Werkzeugelementen

Publications (2)

Publication Number Publication Date
EP2845663A1 EP2845663A1 (fr) 2015-03-11
EP2845663B1 true EP2845663B1 (fr) 2019-01-02

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EP14183721.1A Active EP2845663B1 (fr) 2013-09-10 2014-09-05 Presse plieuse avec un outil de cintrage composé de plusieurs éléments d'outil

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EP (1) EP2845663B1 (fr)
AT (1) AT514788B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3533597B1 (fr) * 2018-02-23 2023-08-30 Fritz Stepper GmbH & Co. KG Dispositif d'usinage d'au moins une pièce à usiner
DE102019119848A1 (de) * 2019-07-23 2021-01-28 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Werkzeug und Verfahren zum Bearbeiten von plattenförmigen Werkstücken, insbesondere Blechen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63119931A (ja) * 1986-06-30 1988-05-24 Maru Kikai Kogyo Kk プレスブレ−キの上型交換装置
JP3476213B2 (ja) * 1993-04-27 2003-12-10 日清紡績株式会社 プレスブレーキの型長さ変更装置
DE20310428U1 (de) * 2003-07-07 2003-09-18 TRUMPF Werkzeugmaschinen GmbH & Co. KG, 71254 Ditzingen Biegewerkzeug mit einstellbaren Werkstückwiderlagersegmenten sowie Biegemaschine mit einem derartigen Biegewerkzeug
IT1398744B1 (it) * 2010-03-12 2013-03-18 Salvagnini Italia Spa Pressopiega con utensile di piegatura a lunghezza variabile automaticamente.
AT510721B1 (de) * 2011-03-14 2012-06-15 Trumpf Maschinen Austria Gmbh Werkzeug-positioniervorrichtung an einer biegepresse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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AT514788B1 (de) 2015-05-15
EP2845663A1 (fr) 2015-03-11

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