EP3144076A1 - Outil pour une poinçonneuse pour transformer des sections d'une piece usinee en forme de plaque et procede associe - Google Patents

Outil pour une poinçonneuse pour transformer des sections d'une piece usinee en forme de plaque et procede associe Download PDF

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Publication number
EP3144076A1
EP3144076A1 EP16189239.3A EP16189239A EP3144076A1 EP 3144076 A1 EP3144076 A1 EP 3144076A1 EP 16189239 A EP16189239 A EP 16189239A EP 3144076 A1 EP3144076 A1 EP 3144076A1
Authority
EP
European Patent Office
Prior art keywords
bending
tool
segments
workpiece
segment
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.)
Granted
Application number
EP16189239.3A
Other languages
German (de)
English (en)
Other versions
EP3144076B1 (fr
Inventor
Martin Walz
Markus Hees
Yakup Coskun
Thomas Burzig
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.)
Trumpf Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Werkzeugmaschinen SE and Co KG
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 Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Publication of EP3144076A1 publication Critical patent/EP3144076A1/fr
Application granted granted Critical
Publication of EP3144076B1 publication Critical patent/EP3144076B1/fr
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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
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/20—Bending sheet metal, not otherwise provided for
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/08—Stamping using rigid devices or tools with die parts on rotating carriers
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • 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
    • 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
    • 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
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers

Definitions

  • the invention relates to a tool for forming portions of a plate-shaped workpiece, in particular a tool for forming portions of a plate-shaped workpiece for a punching machine.
  • the document DE 200 18 936 U1 discloses a machine for sheet metal working with a rotary bending tool. With the aid of the tool, a single deformation of a section, in particular a tab, can be produced in a plate-shaped workpiece.
  • the deformed portion has a width which corresponds to a maximum of one length of a punch and a bending roller. If narrower formations are to be created, the workpiece must be punched so far that the entire length of the punch and the bending roller are within the punched-out area. A reshaping of, for example, closely adjacent tabs is thus not possible. For such forming, it is necessary to provide task-specific special tools.
  • the invention is based on the object to provide a forming tool for a punching machine, which does not have the above disadvantages, and makes it possible with little effort to produce transformations with different widths.
  • the bending punch and the bending roller by constructing the bending punch and the bending roller with segments, starting from a maximum design-related length, it is possible to reduce an effective length of a bending roller to avoid unnecessarily large punched-out areas for creating a tab.
  • Fig. 1 is an embodiment of a sheet metal working machine, namely a punching machine 1, shown.
  • An essential part of the punching machine 1 is a C-frame 2.
  • the C-frame 2 consists of a torsion-resistant welded steel construction.
  • a hydraulic unit 3 is provided, with which a plunger 4 is hydraulically driven via a ram drive, not shown.
  • a lower tool holder 5 for receiving a lower tool part of a punching or forming tool 12 is provided.
  • the lower tool holder 5 is rotatable about a rotary drive, not shown, through 360 ° and lockable in any angular position.
  • the plunger 4 On the upper inside of the C-frame 2, the plunger 4 is provided.
  • the plunger 4 with an upper tool holder 6 receives a tool upper part of the punching or forming tool 12 positively and without play.
  • the plunger 4 is also rotatable by 360 ° and can be detected in any angular position. For a second rotary drive, not shown, is present.
  • a machine table 7 On the lower inside of the C-frame 2, a machine table 7 is further arranged, which has a transverse rail 8 with a linear magazine for the punching or forming tools 12. At the cross rail 8 clamping claws 9 for holding a plate-shaped workpiece 10, here a metal plate, arranged. In the linear magazine several, here three, tool holders 11 for several, here two, tools 12 are present.
  • the machine table 7 travels in a Y direction together with the cross rail 8, to which the clamping claws 9 are fastened, with which the plate-shaped workpiece 10 is held, in a programmed position.
  • the cross rail 8 moves to the programmed position, wherein the plate-shaped workpiece 10 slides over the machine table 7.
  • a working stroke is performed by the plunger 4, in which the plate-shaped workpiece 10 is punched or formed in accordance with the recorded in the tool holders 5, 6 tool.
  • the next punching position is approached according to the same principle.
  • the punching or forming tools 12 are automatically changed by a machine control device, not shown, changed.
  • a machine control device to change the tools 12 from the tool magazine travels the cross rail 8, driven by a linear drive, not shown, in a position in an X direction, so that the X position of the tool to be loaded 12 of the X position of the lower tool holder 5 corresponds.
  • the cross rail 8 then moves together with the machine table 7, driven by a further linear drive, in a position in the Y direction, in which an axis of the tool 12 with a central axis of the lower tool holder 5 and the plunger 4th matches, so that the punching tool 12 can be received in the lower tool holder 5 and in the upper tool holder 6.
  • Fig. 2 shows an isometric view of a tool shell 21 of a tool according to the invention.
  • the tool upper part 21 has as a means for receiving in the upper tool holder 6 of the punching machine 1 a punch shaft 22.
  • the upper tool part 21 also has a first adapter flange 23, via which the upper part of the tool can be received in one of the tool holders 11 of the tool magazine. Opposite the punch shaft 22, the upper tool part 21 on a punch 24.
  • the bending punch 24 is subdivided into a plurality of first bending segments 25 in this embodiment.
  • the bending punch 24 further has a bending edge, which is formed by aligned bending edges 34 on the bending segments 25. Between some of the first bending segments 25, first spacer segments 26 are provided. In each case one spacer segment 26 or a plurality of first spacer segments 26 may be provided.
  • the first bending segments 25 and the spacer segments 26 are fastened to the tool upper part 21 via a clamping strip 27.
  • first bending segments 25 and the first spacer segments 26 may be fastened to the tool upper part 21 in another manner, for example by screwing or via a dovetail connection.
  • a segmentation of the punch 24 is not necessarily required. If on the top of the plate-shaped workpiece 10 no surveys are provided at the locations where no sections to be reshaped, the bending punch 24 may also be provided continuously with the bending edge 34.
  • FIG. 3 an isometric view of an embodiment of a tool base 28 of the tool according to the invention is shown.
  • the lower tool part 28 has a second adapter flange 29, by means of which the lower tool part 28 can be received in the lower tool holder 5 and also optionally together with the upper tool part 21 in one of the tool holders 11 of the tool magazine of the punching machine 1.
  • the lower tool part 28 also has a bending roller 30.
  • the bending roller has a shaft described later, on which are applied second bending segments 31 ', 31 ", namely bending segments of the bending roller 30. Between some of the second bending segments 31', 31" are provided second spacer segments 32 ', 32 " second spacer segments 32 ', 32 "may be provided between the second bending segments 31', 31". Side guides 50 described later are provided at both ends of the bending roller 30.
  • the first bending segments 25 of the tool top 21 and the second bending segments 31 ', 31 "of the tool base 28 cooperate to reshape portions of the plate-shaped workpiece 10, in this case to bend as tabs, as described later.
  • the required position of the tool top 21 and the tool bottom 28 for forming the deformations in the desired positions of the plate-shaped workpiece 10 is determined by the programmed position of the plate-shaped workpiece 10.
  • the second bending segments 31 ', 31 "and the second spacer segments 32', 32" in the tool lower part 28 are rotatable about a rotation axis 33.
  • the axis of rotation 33 extends in a direction of the bending edge 34 of the punch 24.
  • the lower tool part 28 is also optionally provided with a first ejector 35 and a second ejector 36.
  • the ejectors 35, 36 are spring-loaded in one direction of the working stroke of the plunger 4.
  • the second ejector 36 is opposite to the first ejector 35 with respect to the bending roller 30.
  • the bending punch 24 is here in the tool upper part 21 and the bending roller 30 is contained in the tool lower part 28.
  • the bending roller is in the tool upper part and the bending punch 24 is provided in the tool lower part.
  • FIGS. 4a and 4b In each case, a schematic side view of the first bending segment 25 of the bending punch 24 and of a first embodiment of the second bending segment 31 'of the bending roller 30 are shown.
  • Fig. 4a is a situation before a forming process and in Fig. 4b a situation during the forming process shown.
  • the first bending segment 25 has an approximately entire surface facing the plate-shaped workpiece 10 as a bearing surface 37. Excluded areas of the facing surface are merely a radius of the bending edge 34 and any radii or chamfers on the edges of the surface.
  • the second bending segment 31 ' has a substantially circular cross-section here with a specific diameter about a central axis, which corresponds to the axis of rotation 33.
  • the second bending segment 31 ' is provided with a recess 38 with a sector-shaped cross section, here a sector of 90 °.
  • the second bending segment 31 ' is further provided with an opening 45 into which a shaft described later can be inserted.
  • One leg of the sector-shaped recess 38 is a bending leg 39, with which the portion of the plate-shaped workpiece 10 is formed.
  • a second leg 44 of the sector-shaped recess 38 acts here as an actuating leg, which acts as an actuating portion 40 with a transition region to the circular cross-section, in this case a radius.
  • the sector-shaped recesses 38 of the second bending segments 31 ', 31 “have identical angles to respectively reshape the sections of the plate-shaped workpiece 10.
  • the sector-shaped recesses 38 of the second bending segments 31', 31" may have different angles , so that, for example, tabs can be bent out of the workpiece 10, the different angles to have the workpiece 10.
  • the radius of the sector-shaped recess 38 near the axis of rotation 33 is selected as a function of the desired bending radius.
  • FIGS. 5a to 5c show schematic side views of various embodiments of the first spacer segments 26 of the punch 24th
  • the first spacer segment 26 'analogous to the first bending segment 25 an approximately entire surface facing the workpiece 10 during the forming process as a bearing surface 41 on the workpiece 10.
  • Fig. 5b 1 shows the first spacer segment 26 "which, unlike the first spacer segment 26 ', has no bearing surface but a bevelled lower surface 43. Therefore, the surface 43 of the first spacer segment 26" facing the plate-shaped workpiece 10 is at a distance from the workpiece during the forming process 10th
  • the spacer segment 26 '" has a cutout 42 on the surface facing the workpiece 10. Due to the cutout 42, the spacer segment 26"' has a bearing surface 41 in a section of the surface 43 facing the workpiece 10, whereas a further segment the workpiece 10 facing surface by the cutout 42 during the forming process at a distance from the plate-shaped workpiece 10 has.
  • the spacer segment 26 "' is immediately adjacent the first bending segments 25 are used when upwardly directed transformations are present in non-formed areas near the deformed sections.
  • Fig. 6 11 shows a side view of one embodiment of a second spacer segment 32 ', namely a spacer segment of the bending roller 30.
  • the second spacer segment 32' is annular and has an outer diameter d a having a maximum dimension so that a plane through the second spacer segment 32 ' , in which the second leg 44 is located and which is parallel to the axis of rotation 33, is not cut.
  • An inner diameter di of the second spacer segment 32 is adapted to the diameter of the later-described shaft of the bending roller 30.
  • a position of the plate-shaped workpiece 10 is first approached by the punching machine 1, which is adapted to introduce the introduced formations at desired positions.
  • the punching machine 1 which is adapted to introduce the introduced formations at desired positions.
  • the bending roller 30 is in a rest position, ie in an orientation in which the sector-shaped recess 38 is directed in a direction towards the punch 24.
  • an angle bisector of the sector-shaped recess 38 is perpendicular to the underside of the plate-shaped workpiece 10th
  • the first bending segment 25 of the punch 24 moves relative to the second bending segment 31 'of the bending roller 30.
  • the plate-shaped workpiece 10 is pressed by the bearing surface 37 and the bending edge 34 of the first bending segment 25 on the actuating portion 40 of the second bending segment 31 'of the bending roller 30, so that the actuating portion 40 is acted upon.
  • the second bending segment 31 'and thus the bending roller 30 is deflected from the rest position about the rotation axis 33 rotationally.
  • the workpiece 10 is pressed into the recess 38 while a portion corresponding to a width of the second bending segment 31 ', bending deformed.
  • the portion is "over-arched", ie, the first bending segment 25 is moved toward the second bending segment 31 'so far that the deformed portion deforms slightly more than at a right angle is, in which case when a moving apart of the first bending segment 25 and the second bending segment 31 'by a resilient spring back of the material, a right angle is formed.
  • the number, spacing and dimensions of the formed portions are dependent on the number, arrangement and width of the second bending segments 31 '.
  • next position of the plate-shaped workpiece 10 is approached, which is adapted to introduce the next to be introduced transformations at desired positions.
  • Fig. 7 is a sectional side view of the tool base 28 of Fig. 3 shown.
  • a second embodiment of the second bending segments 31 is provided.
  • the second bending segment 31 also has the same as that in FIG Fig. 4a and 4b shown second bending segment 31 'on the sector-shaped recess 38 and the opening 45 for insertion of the wave described later.
  • the actuating portion 40 does not consist of the second leg of the sector-shaped recess 38 and the transition region to the circular cross-section of the bending segment 31 'shown second bending segment 31'.
  • the second bending segment 31 "has a cross section which is circular in a first sector about the rotation axis 33, like the second bending segment 31 ', with the specific diameter of the second bending segment 31', but here additionally a second sector is provided
  • the second sector also has a second predetermined diameter which is larger than the first predetermined diameter in the first sector
  • the tool lower part 28 has a recess which is complementary to the second sector, so that the second sector can move in the recess and stick to it supported, so that the shaft is supported in the opening 45.
  • the first ejector 35 is disposed relative to the second bending segment 31 "such that the operating portion 40 of the second bending segment 31" lies below a portion of the first ejector 35 so that the first ejector 35 engages with the actuating portion 40 of the second flexion segment 31 " is.
  • the first ejector 35 further has on its side facing away from the bending roller 30 a ramp, so that the workpiece 10 can easily drive onto the lower tool part 28.
  • the actuating portion 40 of the second bending segment 31 "of the bending roller 30 is not actuated directly over the workpiece 10, as in the case of the bending segment 31 'of the first embodiment, but the actuating portion 40 of the bending segment 31" is the relative movement of the punch 24th to the bending roller 30 via the workpiece 10 and the first ejector 35 acted upon.
  • the bending roller 30 is already moved from its rest position, before the plate-shaped workpiece 10 "impinges on the second bending segments 31", so that a beating of the workpiece is prevented on the stationary bending roller 30 and damage to the sheet by the bending segments 31 "reduced or prevented ,
  • the second ejector 36 has, like the first ejector 35, on its side facing away from the bending roller 30 a bevel at the upper edge, so that the plate-shaped workpiece can easily drive on this side of the tool base 28.
  • the second ejector 36 is coupled to the first ejector 35 so that the second ejector 36 moves simultaneously with the first ejector 35.
  • the second ejector 36 would be pushed down only by the plate-shaped workpiece 10 in the working stroke of the punching machine 1. There is a risk that the plate-shaped workpiece 10 is deformed unintentionally. Due to the coupling and the simultaneous movement there is also the possibility of making punched-out areas smaller in order to be deformed sections.
  • a perspective view of a shaft 45 is shown.
  • the shaft 45 has a length which is slightly larger than the length of the bending roller 30.
  • the shaft 46 has a circular cross-section with a first flattening 47 and a second flattening 48. The size of the two flats is different.
  • the shaft 46 fits positively into the opening 45 in the second bending segments 31 'and 31 ".
  • the first, larger flattening 47 is a driving surface.
  • a torque is primarily transmitted between the shaft 46 and the second bending segments 31 ', 31 "when the actuating portion 40 of the in Fig. 7 shown second bending segment 31 "is on the one hand via its actuating portion 40 of this second bending segment 31” rotationally deflected.
  • the torque for the rotary deflection to the second bending segment 31' which itself has no engaging in the first ejector 35 operating portion transferred.
  • the second, smaller flat 48 is an auxiliary surface. It serves as a coding so that the second bending segments 31 ', 31 "can not be mounted in a wrong orientation on the shaft 46.
  • the shaft 46 need not necessarily have a circular cross section with flats, but may alternatively have a different cross section, as long as it is not symmetrical to an axis which is perpendicular to an axis 49 of the shaft 46.
  • Fig. 9 is again a sectional side view of the tool base 28 of Fig. 3 shown. Here, the section is laid so that a second embodiment of one of the spacer segments 32 "is shown.
  • the second spacer segment 32" also has a sector here Radius that is opposite the radius of the in Fig. 6 shown second distance segment 32 'is greater.
  • the actuating portion 40 is also formed here, which is in engagement with the first ejector 35.
  • the tool lower part 28 points in a movement range of the sector with the larger radius when rotating the second spacer segment 32 'and thus the bending roller 30 a recess which is complementary to this sector, so that the sector can move in the recess and is supported on it.
  • the shaft 46 is supported via the second spacer segment 32 ".
  • the second spacer segment 32 has a maximum outer dimension in an angular range of the sector-shaped recess 38 of one of the adjacent second bending segments 31 ', 31", so that the second spacer segment 32 "has the plane in which the second leg 44 of the sector-shaped recess 38 the adjacent second bending segments 31 ', 31 "and which is parallel to the axis of rotation 33 is not cut.
  • the second spacer segment 32 "penetrates into the in Fig. 4b shown position of the second bending segment 31 ', in which the second leg 44 abuts an underside of the workpiece 10, not in the plate-shaped workpiece 10 and does not deform this.
  • the second spacer segment 32 also has the opening 45, into which the shaft 46 is received in a form-fitting manner, whereby a torque can be transmitted to the second bending segments 31 ', 31" via the action of the actuating section 40 of the second spacer 32 " without the spacer segment 32 "itself performing a bending operation.
  • a return element 49 is shown, with which the bending roller 30 is urged into its rest position.
  • the return element 49 engages an engagement surface of the second spacer segment 32 ", so that in the rest position, when the actuating sections 40 are not acted upon, a defined orientation of the bending roller 30 is ensured prevents a collision of the bending roller 30 with the plate-shaped workpiece when driving over the lower tool part 28.
  • Fig. 10 shows an isometric view of the already in Fig. 3
  • the side guide 50 has in a shaft 46 facing surface on a circular segment-shaped groove 51, in each of which an end portion of the shaft 46 engages.
  • the side guide 50 is arranged on both sides of the shaft 46 adjacent to the tool base 28, that the center of the circular segment-shaped groove 51 is located on the axis of rotation 33.
  • the width of the first bending segments 25 may be different.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP16189239.3A 2015-09-17 2016-09-16 Outil pour une poinçonneuse pour transformer des sections d'une piece usinee en forme de plaque et procede associe Active EP3144076B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015217887.0A DE102015217887A1 (de) 2015-09-17 2015-09-17 Werkzeug für eine Stanzmaschine zum Umformen von Abschnitten eines plattenförmigen Werkstücks und Verfahren dazu

Publications (2)

Publication Number Publication Date
EP3144076A1 true EP3144076A1 (fr) 2017-03-22
EP3144076B1 EP3144076B1 (fr) 2019-12-18

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Application Number Title Priority Date Filing Date
EP16189239.3A Active EP3144076B1 (fr) 2015-09-17 2016-09-16 Outil pour une poinçonneuse pour transformer des sections d'une piece usinee en forme de plaque et procede associe

Country Status (4)

Country Link
US (1) US10486214B2 (fr)
EP (1) EP3144076B1 (fr)
CN (1) CN106825231B (fr)
DE (1) DE102015217887A1 (fr)

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Publication number Priority date Publication date Assignee Title
IT201800010409A1 (it) * 2018-11-16 2020-05-16 Cml Int S P A Macchina per curvare un pezzo allungato senza formazione di grinze
SE543070C2 (en) * 2019-03-22 2020-09-29 Lumeo Tech Ab Fastening device for removably attaching an object, as well as a method for removably attaching an object
DE102019119848A1 (de) * 2019-07-23 2021-01-28 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Werkzeug und Verfahren zum Bearbeiten von plattenförmigen Werkstücken, insbesondere Blechen
RU2766613C1 (ru) * 2021-06-02 2022-03-15 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Универсальный штамп для гибки листового металла

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Publication number Priority date Publication date Assignee Title
DE20018936U1 (de) 2000-11-07 2001-01-25 Trumpf GmbH & Co., 71254 Ditzingen Maschine für die Bearbeitung von Werkstücken, insbesondere Maschine für die Blechbearbeitung sowie Drehbiegewerkzeug für eine derartige Maschine
DE10223637A1 (de) * 2002-05-28 2003-12-11 Pass Stanztechnik Ag Biege-Werkzeug
DE102015000958A1 (de) * 2015-01-27 2015-07-02 Daimler Ag Vorrichtung sowie Verfahren zum Abkanten von Blechen
DE102015000959A1 (de) * 2015-01-27 2015-07-02 Daimler Ag Vorrichtung und Verfahren zum Abkanten von Blechen

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DE102015217887A1 (de) 2017-03-23
US20170080471A1 (en) 2017-03-23
CN106825231B (zh) 2021-05-14
US10486214B2 (en) 2019-11-26
EP3144076B1 (fr) 2019-12-18

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