EP2921240B1 - Outil pour une poinçonneuse universelle avec un élément d'outil flottant et poinçonneuse universelle - Google Patents

Outil pour une poinçonneuse universelle avec un élément d'outil flottant et poinçonneuse universelle Download PDF

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Publication number
EP2921240B1
EP2921240B1 EP15156922.5A EP15156922A EP2921240B1 EP 2921240 B1 EP2921240 B1 EP 2921240B1 EP 15156922 A EP15156922 A EP 15156922A EP 2921240 B1 EP2921240 B1 EP 2921240B1
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EP
European Patent Office
Prior art keywords
tool
machining
centering
insert
machining insert
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.)
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EP15156922.5A
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German (de)
English (en)
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EP2921240A1 (fr
Inventor
Markus Hees
Oliver Steidle
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
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Publication of EP2921240A1 publication Critical patent/EP2921240A1/fr
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/14Particular arrangements for handling and holding in place complete dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/04Centering the work; Positioning the tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/12Punching using rotatable carriers
    • B21D28/125Punching using rotatable carriers with multi-tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/34Perforating tools; Die holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/04Movable or exchangeable mountings for tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628Means for adjusting the position of the cutting member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/26Perforating, i.e. punching holes in sheets or flat parts
    • B21D28/265Perforating, i.e. punching holes in sheets or flat parts with relative movement of sheet and tools enabling the punching of holes in predetermined locations of the sheet, e.g. holes punching with template

Definitions

  • the invention relates to a tool for a universal punching machine according to the preamble of claim 1, in particular a tool for a universal punching machine, which allows a very small cutting gap.
  • Fast-releasing punches or presses are known in which follow-on composite tools are used.
  • a component with a predetermined manufacturing progress is produced.
  • An upper tool and a lower tool of the progressive tool are therefore usually connected to each other with column guides, so that a high accuracy of the machining inserts in the upper tool and the lower tool can be achieved by a stable design of the tool.
  • the workpiece is fed here in the form of a strip which is introduced between the column guides.
  • the invention is based on the object to provide a tool for a universal punching machine, which does not have the above disadvantages, and with little effort, a great flexibility and high accuracy between allows the machining inserts in the upper tool and the lower tool.
  • a punching machine 1 is shown with a tool 2 according to the invention.
  • a component of the punching machine 1 is here a C-frame 3.
  • the C-frame 3 consists of a torsionally rigid Welded steel construction.
  • the frame can also be executed in a different form.
  • a hydraulic unit 4 is provided, with which a plunger 5 is hydraulically driven via a plunger control 6.
  • the punching machine 1 has an axis 7, which is the center axis of a lower tool holder 9 and the plunger 5 with an upper tool holder 8.
  • the lower tool holder 9 is on the lower inside of the C-frame 3 for the positive and play-free receiving a lower tool 10, which is a tool part of the tool 2, is provided.
  • the lower tool holder 9 is optionally rotatable about a rotary drive, not shown, and lockable in any angular position.
  • the lower tool holder 9 optionally has a drive which moves the lower tool holder 9 along the axis 7. The drive can be controlled so that it stops at any position within its drive path, and then moves backwards or forwards.
  • the plunger 5 is provided on the upper inside of the C-frame 3.
  • the plunger 5 with the upper tool holder 8 receives a top tool 11 as a tool part of the tool 2 positively and without play.
  • the plunger 5 is also optionally rotatable and can be detected in any angular position. For a second, not shown rotary drive is available. Also, the plunger 5, driven by the plunger control 6, be stopped at any position within its stroke along the axis 7, and then moved up or down.
  • the control device 12 has as input and output means a keyboard, not shown, and a monitor, not shown.
  • the control functions are performed by microcontrollers. Processing programs and operating parameters are stored in a memory area of the control device 12.
  • a machine table 13 On the lower inside of the C-frame 2, a machine table 13 is arranged, which has a cross rail 14 with a tool magazine 15. At the cross rail 14 clamping claws 16 are arranged for holding a workpiece 17 in the form of a metal plate. The clamping claws 16 may be secured at suitable locations on the cross rail 14, and may be displaced so that the workpiece 17 is held securely, but the workpiece 17 is not gripped on a surface to be machined.
  • the tool magazine 15 are several, here three, tool holders 18 for several, here two, tools 2 available.
  • machining positions can be approached, so bring the workpiece 17 to a corresponding position at which a punching or forming process is performed. Due to a kinematic chain consisting of drive elements, motion transmission elements and guide elements, however, due to the system, a tolerance of the machining positions, but usually in an order of magnitude, so that a position accuracy of punching is sufficient, and allows sufficiently small cutting gaps.
  • FIG. 2 an embodiment of the tool 2 is shown.
  • the tool 2 has the lower tool 10 and the upper tool 11.
  • a first processing insert 19 is provided and in the upper tool 11, a second processing insert 21 is provided.
  • the first machining insert 19 is floating, meaning that it has a predetermined amount in the lower tool 10 for horizontal movement in all directions. Furthermore, the first processing insert is provided with two centering openings 20, 20 '. The first processing insert is provided here as a die with a bore 24.
  • the second machining insert 21 is fixedly attached to the upper tool 11.
  • two centering projections 22 are fixed to dip into the centering openings 20, 20 'and to center the first processing insert 19 to the second processing insert 21 when the upper tool 11 and the lower tool 10 are in a working position.
  • the centering projections 22 may alternatively be attached to another location of the upper tool 11 and are not necessarily attached to the second processing insert 21.
  • the second processing insert is provided here with a stamp 23. By an interaction of the punch 23 with the bore 24 in the first processing insert 19, it is possible to punch in the workpiece 17 a hole.
  • the centering projections 22 are here designed as cylindrical pins with a circular cross-section in the direction of centering.
  • the centering opening 20 is formed here as a bore with a circular cross-section.
  • the centering opening 20 ' has an elongated cross section in the centering direction in order to to avoid a static over-tuning of a centering device consisting of the centering projections and centering openings.
  • both centering openings are provided with a circular cross-section.
  • this embodiment is to produce with simpler operations, but it is necessary that the distance between the centering projections 22 then exactly the distance of the centering 20, 20 'corresponds, otherwise a distortion of the centering can occur when a required fit between the centering projections 22 and the centering openings 20, 20 'is not sufficient.
  • the upper tool are provided only with a centering projection and the lower tool only with a centering opening.
  • both the centering projection and the centering opening in the centering direction have an elongated, substantially rectangular cross-section. The elongated cross section creates a support length against rotation of the first processing insert to the second processing insert so that the position of the first processing insert is fixed to the second processing insert.
  • the first machining insert 19 is provided in the lower tool 10 and the second machining insert 21 is provided in the upper tool 11.
  • the assignment may also be different, so that the first floating processing insert 19 is provided in the upper tool 11 and the second processing insert 21 in the lower tool 10.
  • a tool 2 is shown in which both in the upper tool 10 a plurality of first processing inserts 19, 19 ', 19 “, 19'” and in the lower tool 11 a plurality of processing inserts 21, 21 ', 21 ", 21'", 21 "" are provided.
  • the first processing inserts 19, 19 ', 19 “, 19'”, 19 “” are also stored floating in the lower tool 10 here.
  • Each of the first processing inserts 19, 19 ', 19 “, 19'", 19 “” is also provided with centering openings 20 here.
  • the first processing inserts 19, 19 ', 19 “, 19'", 19 “” and the second processing inserts 21, 21 ', 21 “, 21'", 21 “” act together in the working position and form punching tools (processing inserts 19) 21) and forming tools (machining inserts 19 'with 21', 19 “with 21", 19 '"with 21'", 19 “” with 21 “").
  • Fig. 3 is, as mentioned above, also seen that the centering projections 22 are mounted in the second processing insert 21, but the Zentriervorsprüngen 22 a not on one of the second processing inserts 21 ', 21 ", 21'", 21 "", but directly to the Upper tool 11 are attached.
  • Fig. 4 the workpiece 17 is shown with the in Fig. 3 edited tool is edited. Here are the individual steps to recognize.
  • a third step III the U-shaped punched out using the processing inserts 19 ', 21' deformed down.
  • the product is then gradually transformed and brought into the final form.
  • the distances of the processing inserts in particular the distances of the active surfaces of the processing inserts 19, 19 ', 19 “, 19'", 19 “", 21, 21 ', 21 “, 21'", 21 “” for punching and forming each have an equal distance, so that the steps in the sense of a progressive tool can be performed.
  • Fig. 5 shows a cross section of the lower tool 10 and the upper tool 11 and the workpiece 17.
  • the first processing inserts 19, 19 ', 19 “, 19'", 19 “” are arranged so that their upper side is in each case essentially at the same level, but their height is different.
  • a down device 26 described later is optionally provided.
  • Fig. 6 the lower tool 10 is shown without the first processing inserts.
  • a recess is provided for the individual first processing inserts.
  • the recesses 25, 25 ', 25 “", 25 “”, 25 “” are disposed adjacent in a predetermined direction, and the recesses 25, 25', 25 “", 25 “”, 25 “”, as well as in FIG Fig. 5 you can see different depths. Further, the adjacent recesses 25, 25 ', 25 "", 25 “”, 25 “” have different dimensions in a horizontal direction perpendicular to the predetermined direction.
  • first Machining inserts 19, 19 ', 19 “, 19'", 19 “” directly next to each other without dividers to arrange, but in each case determine a certain extent for a floating movement in a horizontal plane.
  • first processing inserts 19, 19 ', 19 “, 19'", 19 “” and thus also the second processing inserts 21, 21 ', 21 “, 21'", 21 “” can be arranged closer and thus in the tool 2 with the same outer dimensions more processing inserts 19, 19 ', 19 “, 19'", 19 “", 21, 21 ', 21 ", 21'", 21 “” are provided.
  • tool 2 has the in Fig. 7 shown tool 2 on the hold-26.
  • the hold-down 26 is spring-mounted and presses the workpiece 17 during an upward movement of the upper tool 11 of the processing inserts 19, 19 ', which are formed as punching tools.
  • the hold-down 26 is resiliently attached to the upper tool 11.
  • the hold-down can also be attached to a corresponding device on the universal punching machine 1.
  • Fig. 8 are respectively a sectional view of the first processing insert 19 and the second processing insert 21 and therein already in Fig. 2 shown centering projections 22 and centering openings 20, 20 'shown enlarged.
  • the centering projections 22 and the centering openings 20, 20 'each have a cylindrical portion 27, 29, 29'.
  • the cylindrical Portions 27 of the centering projections have a first dimension in each horizontal direction, here a diameter d 1 , so that the first dimension is equal in each horizontal direction.
  • d 1 a diameter
  • these first dimensions are different.
  • the cylindrical portion 27 of the centering projection 22 is matched with the cylindrical portion 29 so that they can be introduced into each other in virtually any horizontal directions without play.
  • the cylindrical portion 29 'of the centering hole 20' is matched with the cylindrical portion 28 of the centering projection 20 so that in a horizontal direction movement of the centering projection 22 in the centering hole 20 is possible to avoid, as mentioned above, the static overdetermination.
  • the centering projections 22 furthermore each have a chamfer 28.
  • the chamfer 28 has at one end of the cylindrical portion 27 opposite a second dimension, namely here again a diameter d. 2
  • the centering openings 20, 20 ' also have a chamfer 30, 30' on an end facing the centering projections 27.
  • the cylindrical sections 29, 29 'of the centering openings 20, 20' have a third dimension in each horizontal direction, here a diameter d 3 .
  • the chamfer 30 has at its centering projections 27 facing the end in each horizontal direction, a fourth dimension, here a diameter d 4th
  • a sum of the difference between the first dimension d 1 and the second dimension d 2 and the difference between the third dimension d 3 and the fourth dimension d 4 in a given horizontal direction is at least as large as a maximum offset between the first machining insert and the second Machining application set.
  • the maximum offset between the first machining insert 19, 19 ', 19 “, 19", 19 “” and the second machining insert 21, 21', 21 “, 21 '", 21 “” becomes in the determined horizontal direction by the machining position tolerance the universal punching machine 1 and by a tolerance of the centering projection 22 in the upper tool 11 and an amount for a floating movement of the first processing insert 19, 19 ', 19 ", 19'", 19 “” in the lower tool 10.
  • chamfers are provided either only on the centering projections 22, 22a or only on the centering openings 20, 20 '.
  • the working position is approached via the cross rail 14, that is, the workpiece 17 is brought into a corresponding position, so that it is for its processing at a suitable location. Then, a working stroke is performed by means of the plunger 5 and a component punched or formed from the workpiece 17. If the working position at the edge of the workpiece 17, so that the centering projections 22, 22 a are located next to the workpiece 17, the working stroke is performed immediately.
  • the working position is located within the workpiece 17 such that the centering projections 22, 22a are not adjacent to the workpiece 17 are located or can dive in the working stroke through an already punched opening in the workpiece 17, an opening for dipping the centering projections 22, 22a is introduced through the workpiece 17 in advance.
  • the centering projections 22, 22 a of the upper tool 21, which dive through the workpiece 17, then enter the centering openings 20, 20 'of the lower tool 10 in order to center the first processing insert 19 to the second processing insert 21 exactly.
  • the openings in the workpiece 17 for the centering projections 22, 22a of the further machining inserts 19 ', 19 ", 19'", 19 “” are produced in a previously performed work step.
  • the centering projections 22, 22a for the individual processing inserts 19, 19 ', 19 “, 19'", 19 “” are arranged so that they pass through these openings.
  • the universal punching machine 1 is provided in an alternative embodiment with an axially adjustable lower tool holder 9, this must be alternatively or in addition to the upper tool holder 8 in a position in which the lower tool received therein does not project into a plane of movement of the workpiece 17, so that the workpiece movement state of the universal punching machine is present.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Drilling And Boring (AREA)
  • Automatic Assembly (AREA)

Claims (12)

  1. Outil (2) pour une poinçonneuse universelle (1), composé d'un outil inférieur (10) et d'un outil supérieur (11), selon lequel au moins un premier insert d'usinage (19, 19', 19", 19'", 19"") est monté flottant horizontalement dans l'outil inférieur (10) ou l'outil supérieur (11), avec un orifice de centrage (20, 20'), et
    - dans un second insert d'usinage (21, 21', 21", 21'", 21"") est fixé dans l'autre outil inférieur (10) ou supérieur (11) avec au moins une saillie de centrage (22, 22a), et
    au moins la saillie de centrage (22, 22a) et au moins l'orifice de centrage (20, 20') sont réalisés et disposés pour la saillie de centrage (22, 22a) puisse pénétrer dans l'orifice de centrage (20, 20') pour centrer le premier insert (19, 19', 19", 19'", 19"") par rapport au second insert (21, 21', 21", 21'", 21"") lorsque l'outil inférieur (10) et l'outil supérieur (11) sont en position de travail dans laquelle au moins le premier insert d'usinage (19, 19', 19", 19'", 19"") et au moins le second insert d'usinage (21, 21', 21", 21"', 21"") coopèrent,
    et chaque second insert d'usinage (21, 21', 21", 21'", 21"") a au moins deux saillies de centrage (22, 22a) qui sont réalisées dans la direction de centrage sous la forme d'une broche à section circulaire et chaque premier insert d'usinage (19, 19', 19", 19'", 19"") a deux orifices de centrage (20, 20'),
    outil caractérisé en ce que
    l'un des deux orifices de centrage (20, 20') a une section circulaire et l'autre des deux orifices de centrage (20, 20') a une section allongée.
  2. Outil (2) selon la revendication 1,
    caractérisé en ce que
    plusieurs premiers inserts d'usinage (19, 19', 19", 19'", 19"") et plusieurs seconds inserts d'usinage (21, 21', 21", 21'", 21"") sont prévus et l'un des premiers inserts d'usinage (19, 19', 19", 19'", 19"") et l'un des seconds inserts d'usinage (21, 21', 21", 21'", 21"") forment en commun chaque fois au moins un outil de poinçonnage et au moins un outil de transformation.
  3. Outil (2) selon la revendication 2,
    caractérisé en ce que
    la distance entre les premiers inserts d'usinage (19, 19', 19", 19'", 19"") entre eux et les seconds inserts d'usinage (21, 21', 21", 21'", 21"") entre eux sont égales de sorte que pour une course de travail de l'outil supérieur (11) par rapport à l'outil inférieur (10), plusieurs étapes de travail seront exécutées dans le sens d'un outil à suivre composite.
  4. Outil (2) selon la revendication 2 ou 3,
    caractérisé en ce que
    pour les premiers inserts d'usinage (19, 19', 19", 19'", 19""), l'outil inférieur (10) ou l'outil supérieur (11) comporte des évidements (25, 25', 25", 25"', 25"") et les évidements (25, 25', 25", 25"', 25"") sont voisins dans une certaine direction sans intervalles, et les évidements voisins (25, 25', 25", 25"', 25"") ont chacun une profondeur différente et des dimensions différentes perpendiculairement à la direction prédéfinie.
  5. Outil (2) selon l'une des revendications précédentes,
    caractérisé en ce que
    l'outil supérieur (11) a un serre-flan (26) pour l'un des inserts (19, 19', 19", 19'", 19"", 21, 21', 21", 21'", 21"")
  6. Outil (2) selon la revendication 5,
    caractérisé en ce qu'
    il comporte un serre-flan (26) pour chacun des inserts d'usinage.
  7. Outil (2) selon les revendications 5 ou 6,
    caractérisé en ce que
    le serre-flan (26) est monté de façon souple dans l'outil inférieur (10) ou dans l'outil supérieur (11).
  8. Poinçonneuse universelle (1) comportant un outil (2) selon l'une des revendications précédentes, selon lequel
    - la machine universelle (1) a une course prédéfinie avec une position haute du logement d'outil (8) côté machine pour l'outil supérieur (11), et
    au moins une saillie de centrage (22, 22a) positionnée et de longueur telles que son extrémité à l'état de déplacement de pièce de la poinçonneuse universelle (1) dans la direction verticale, présente une distance par rapport à l'outil inférieur (10) en regard ou à l'outil supérieur (11) de façon à pouvoir déplacer une pièce à usiner (17) entre l'outil supérieur (11) et l'outil inférieur (10).
  9. Poinçonneuse universelle (1) comportant un outil (2) selon l'une des revendications 1 à 7,
    dans laquelle
    le premier insert d'usinage (19, 19', 19", 19'", 19"") et le second insert d'usinage (21, 21', 21", 21'", 21"") ont chaque fois l'un par rapport à l'autre, un décalage maximum dans une certaine direction horizontale, ce décalage découlant de
    la dimension pour un mouvement flottant du premier insert d'usinage (19, 19', 19", 19'", 19"") dans l'outil supérieur (11) ou l'outil inférieur (10) dans la direction horizontale déterminée et un décalage horizontal du premier insert (19, 19', 19", 19'", 19"") par rapport au second insert (21, 21', 21", 21'", 21"") occasionné par la tolérance de la position d'usinage de la poinçonneuse universelle (1) dans la direction déterminée, et
    au moins l'une des saillies de centrage (22, 22a) a un segment cylindrique (27) avec une première dimension extérieure (d1) dans la direction déterminée,
    l'extrémité du segment cylindrique (27) de la saillie de centrage (22, 22a), a un congé (28) qui a une seconde dimension extérieure (d2) à l'extrémité opposée à l'extrémité du segment cylindrique (27) de la saillie de centrage (22, 22a), et
    dans la direction déterminée, la différence entre la première dimension (d1) et la seconde dimension (d2) correspond au moins au décalage maximum entre le premier insert d'usinage (19, 19', 19", 19'", 19"") et le second insert d'usinage (21, 21', 21", 21'", 21"").
  10. Poinçonneuse universelle (1) comportant un outil (2) selon l'une des revendications 1 à 7, et dans laquelle
    - le premier insert d'usinage (19, 19', 19", 19'", 19"") et le second insert d'usinage (21, 21', 21", 21'", 21"") ont chaque fois un décalage maximal dans une direction horizontale déterminée, ce décalage se composant de la dimension nécessaire au mouvement flottant du premier insert d'usinage (19, 19', 19", 19'", 19"") dans l'outil supérieur (11) ou dans l'outil inférieur (10) dans la direction horizontale déterminée et à un décalage du premier insert d'usinage (19, 19', 19", 19'", 19"") par rapport au second insert d'usinage (21, 21', 21", 21'", 21"") occasionné par la tolérance de positionnement d'usinage de la poinçonneuse universelle (1) dans la direction déterminée,
    au moins l'un des orifices de centrage (20, 20') ayant un segment cylindrique (29) avec une première dimension extérieure (d3) dans la direction déterminée,
    l'extrémité du segment cylindrique (29) de l'ouverture de centrage (20, 20') a un congé (30) qui a une seconde dimension extérieure (d4), respective, à l'extrémité opposée à l'extrémité du segment cylindrique (29) de l'orifice de centrage (20, 20'), et
    dans la direction déterminée, la différence entre la troisième dimension (d3) et la quatrième dimension (d4) correspond au moins un décalage maximum entre le premier insert d'usinage (19, 19', 19", 19'", 19"") et le second insert d'usinage (21, 21', 21", 21'", 21"").
  11. Poinçonneuse universelle (1) comportant un outil (2) selon l'une des revendications 1 à 7, et dans laquelle
    le premier insert d'usinage (19, 19', 19", 19'", 19"") et le second insert d'usinage (21, 21', 21", 21'", 21"") ont l'un par rapport à l'autre un décalage maximum dans la direction horizontale déterminée, ce décalage se composant
    de la dimension nécessaire au mouvement flottant du premier insert d'usinage (19, 19', 19", 19'", 19"") dans l'outil supérieur (11) ou dans l'outil inférieur (10), dans la direction horizontale déterminée et un décalage horizontal entre le premier insert d'usinage (19, 19', 19", 19'", 19"") et le second insert d'usinage (21, 21', 21", 21'", 21"") occasionné par la tolérance de position de travail de la poinçonneuse universelle (1) dans la direction déterminée,
    caractérisée en ce qu'
    au moins l'une des saillies de centrage (22, 22a) a un segment cylindrique (27) avec chaque fois une première dimension à l'extérieur (d1) dans la direction déterminée,
    l'extrémité du segment cylindrique (27) de la saillie de centrage (22, 22a) ayant un congé (28) qui a une seconde dimension extérieure (d2) à l'extrémité respective opposée à l'extrémité du segment cylindrique (27) de la saillie de centrage (22, 22a), et
    au moins l'un des orifices de centrage (20, 20') a un segment cylindrique (29) avec une première dimension extérieure (d3) dans la direction déterminée,
    l'extrémité du segment cylindrique (29) de l'orifice de centrage (20, 20') ayant un congé (30) qui a une seconde dimension extérieur (d4) respective à l'extrémité opposée à l'extrémité du segment cylindrique (29) de l'orifice de centrage (20, 20'), et
    dans la direction déterminée, la somme de la différence entre la première dimension (d1) et la seconde dimension (d2) et de la différence entre la troisième dimension (d3) et la quatrième dimension (d4) correspond au moins au maximum du décalage entre le premier insert d'usinage (19, 19', 19", 19'", 19"") et le second insert d'usinage (21, 21', 21", 21'", 21"") .
  12. Procédé de gestion d'une poinçonneuse universelle comportant un outil selon l'une des revendications 1 à 7, selon lequel
    il est prévu une étape de poinçonnage d'un orifice traversant pour les saillies de centrage servant à centrer le premier insert d'usinage par rapport au second insert d'usinage.
EP15156922.5A 2014-03-20 2015-02-27 Outil pour une poinçonneuse universelle avec un élément d'outil flottant et poinçonneuse universelle Active EP2921240B1 (fr)

Applications Claiming Priority (1)

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DE102014205249.1A DE102014205249B4 (de) 2014-03-20 2014-03-20 Werkzeug für eine Universalstanzmaschine, Universalstanzmaschine mit einem solchen Werkzeug sowie Verfahren zum Betreiben einer Universalstanzmaschine mit einem solchen Werkzeug

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EP2921240B1 true EP2921240B1 (fr) 2016-09-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018055182A1 (fr) * 2016-09-26 2018-03-29 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Outil et machine-outil, ainsi que procédé de découpe et/ou de formage de pièces en forme de plaque
EP3533597B1 (fr) * 2018-02-23 2023-08-30 Fritz Stepper GmbH & Co. KG Dispositif d'usinage d'au moins une pièce à usiner

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1068596A (fr) * 1976-09-21 1979-12-25 S. B. Whistler And Sons Appareil permettant un poinconnage de precision amelioree, et systeme de poinconnage reutilisable
JPS5794431A (en) * 1980-12-02 1982-06-11 Yaskawa Electric Mfg Co Ltd Die device
JPH07108425B2 (ja) * 1990-03-23 1995-11-22 株式会社小松製作所 パンチプレス
DE19751238A1 (de) * 1997-11-19 1999-05-27 Feintool Int Holding Vorrichtung zum Herstellen eines Werkstückes durch Stanzen
US7073364B2 (en) * 2004-05-27 2006-07-11 Krish Sr Joseph J Die assembly having floating die section
DE102005007215B4 (de) * 2005-02-16 2007-06-28 Feintool International Management Ag Vorrichtung zum Bearbeiten eines Werkstückes
CN200942415Y (zh) * 2006-06-16 2007-09-05 广州市启泰模具工业有限公司 一种转塔冲模上模的退料结构
CN201172086Y (zh) * 2007-04-11 2008-12-31 天津市津荣天和机电有限公司 新型精冲模具
DE202009004014U1 (de) * 2009-03-25 2009-06-04 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Stanzwerkzeug und Werkzeugmaschine damit
DE202009008413U1 (de) * 2009-06-16 2009-09-10 Dold Kaltfließpressteile GmbH Werkzeugsystem für eine Umformpresse
EP2279835B1 (fr) * 2009-07-31 2011-10-26 Groz-Beckert KG Outil de poinçonnage doté d'un tampon flottant
CN102284636B (zh) * 2011-06-13 2013-02-13 江苏金方圆数控机床有限公司 数控冲床的升降模座
CN103128178B (zh) * 2013-03-19 2014-10-15 常州轻工职业技术学院 压紧销头部成型级进模

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CN104923682B (zh) 2019-03-08
DE102014205249A1 (de) 2015-09-24
DE102014205249B4 (de) 2017-11-16
EP2921240A1 (fr) 2015-09-23

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