EP3219404B1 - Machining unit and machine-tool for stamping workpieces, in particular metal sheets - Google Patents

Machining unit and machine-tool for stamping workpieces, in particular metal sheets Download PDF

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Publication number
EP3219404B1
EP3219404B1 EP16160858.3A EP16160858A EP3219404B1 EP 3219404 B1 EP3219404 B1 EP 3219404B1 EP 16160858 A EP16160858 A EP 16160858A EP 3219404 B1 EP3219404 B1 EP 3219404B1
Authority
EP
European Patent Office
Prior art keywords
drive
carrier
transverse
stripper
punching
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.)
Active
Application number
EP16160858.3A
Other languages
German (de)
French (fr)
Other versions
EP3219404A1 (en
Inventor
Kai Etzel
Dennis Tränklein
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
Priority to EP16160858.3A priority Critical patent/EP3219404B1/en
Priority to CN201710303645.6A priority patent/CN107199271B/en
Priority to US15/460,841 priority patent/US10543522B2/en
Priority to JP2017052888A priority patent/JP6861546B2/en
Publication of EP3219404A1 publication Critical patent/EP3219404A1/en
Application granted granted Critical
Publication of EP3219404B1 publication Critical patent/EP3219404B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B21D28/265—Perforating, 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
    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
    • B21D45/006—Stripping-off 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
    • 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
    • B21D28/002—Drive of the 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/06—Stripping-off 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/06—Stripping-off devices
    • B21D45/08—Stripping-off devices interrelated with motion of tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/40—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by wedge means

Definitions

  • the invention relates to a processing unit of a machine tool for punching machining of workpieces, in particular sheets, with a punching tool carrier, to which a punching tool is attachable, and with a punch drive, which has a transverse drive element, wherein the punching tool carrier along a lifting axis is movable by the transverse drive element is driven by a punch drive motor of the punching drive relative to the punching tool carrier with a transverse drive movement along a transverse movement axis which extends in the transverse direction of the stroke axis of the punching tool carrier.
  • the invention further relates to a machine tool for punching machining workpieces with a processing unit of the above type.
  • the drive-side wedge gear elements cooperate with output-side wedge gear elements, to which the press tool is connected and which move together with the press tool along the lifting axis due to the movements carried out by the drive side wedge gear elements in the transverse direction of the lifting axis.
  • the machining unit In addition to a punching unit with a punching tool carrier for a punching tool and with a punching drive for moving the punching tool carrier and the punching tool along a lifting axis, the machining unit according to the invention has a scraper unit with a scraper for the punching tool of the punching unit, wherein the scraper carrier and thus also the scraper decoupled from the punching tool can be positioned along the stroke axis.
  • the punch drive comprises a transverse drive element, which is driven to generate movements of the punching tool carrier along the lifting axis with transverse drive movements along a transverse axis of movement of the lifting axis extending transverse movement axis.
  • the transverse drive element of the punching drive is movable in its transverse drive movements relative to the scraper carrier along the transverse movement axis.
  • the punch tool carrier and the scraper carrier can move relative to each other along the lifting axis.
  • the position of the scraper carrier and thus the position of the The scraper to be attached to the scraper carrier along the lifting axis can consequently be defined independently of the position which the punching tool carrier and the punching tool take along the lifting axis. Movements of the transverse drive element of the punch drive along the transverse movement axis do not affect the position of the scraper carrier and the scraper along the lifting axis.
  • the scraper does not necessarily require a separate drive in order to be able to execute movements along the lifting axis. Rather, positions which the scraper occupies along the lifting axis, both defined in a along the stroke axis to the workpiece to be machined working stroke of the punching tool as well as executed in the opposite direction return stroke by the punching tool or by the punch tool provided with the punching tool. Movably coupled with the punching tool, the scraper moves during the working stroke of the punching tool along the lifting axis in the direction of the workpiece to be machined until the scraper touches on the workpiece.
  • the punch When supported on the workpiece and thus inevitably in the direction of the lifting axis ortsunver basiclichem scraper, the punch continues its working stroke along the stroke axis until the workpiece is machined punching. Upon reaching the dead center of the power stroke of the working stroke opposite return stroke of the punching tool is initiated and the punch moves first relative to the still sitting on the workpiece scraper in the opposite direction of the working stroke along the stroke axis until the punching tool emerges from the now punched machined workpiece. Once the punching tool has exited the workpiece, it will carry the wiper in the return stroke direction with a movement away from the workpiece.
  • the wiper In the "passive wiper” mode of operation, the wiper is moved along the lift axis to a position in which the wiper is spaced from the workpiece. When spaced from the workpiece scraper, the workpiece is machined by means of the punching tool, which performs relative to the scraper a correspondingly sized stroke along the lifting axis.
  • the position occupied by the scraper during workpiece machining along the stroke axis is defined by a separate scraper drive, since unlike the "active scraper" mode of operation, the workpiece is not can be used.
  • the transverse drive element of the punch drive functionally reliable relative to the Abstreiferthe can move along the transverse movement axis
  • the Abstreiferabo is supported in a preferred embodiment of the invention in the direction of the transverse movement axis, being used in the interest of a particularly compact design of the processing unit for supporting the Abstreiferenvirons the punching tool carrier (claim 2).
  • a defined movement of the transverse drive element of the punch drive along the transverse movement axis is ensured according to the invention by a corresponding guidance of the transverse drive element.
  • Preferred dimensions used in the interest of a compact design of the processing unit according to the invention for guiding the transverse drive element along the transverse movement axis provided for the Abstreiferhas support structure on which the Abstreiferlie is movably mounted in the direction of the lifting axis (claim 3).
  • the support structure for the scraper carrier may be supported on the punch carrier, so that the transverse drive element of the punch drive can move reliably relative to the support structure for the Abstreiferthere along the transverse movement axis.
  • a compact construction of the entire arrangement is also the characterizing feature of claim 4, according to which the transverse drive element of the punch drive is supported on a supporting structure of the machining unit in the direction of the lifting axis and in turn the Abstreiferthere and / or its support structure and / or a Abstreiferantriebsmotor the Abstreiferantriebs and / or supports the punch tool carrier in the direction of the stroke axis.
  • a support in the direction of the transverse movement axis of the Abstreifer umans on the punch carrier with simultaneous mobility of the Abstreifer circumstancess along the lifting axis is realized in a preferred embodiment of the invention in that the Abstreiferabo is connected to a Abstreiferantriebsmotor the Abstreiferantriebs via a drive rod which passes the punching tool carrier along the Hubachse , in particular interspersed, wherein the scraper carrier is arranged on the side remote from the Abstreiferantriebsmotor side of the drive rod (claim 6).
  • a piston-cylinder motor is provided as the scraper drive motor
  • a piston rod which is attached to the piston of the scraper drive motor and is connected to its end remote from the scraper drive motor end of the scraper carrier can be used as the punch carrier passing or passing through the drive rod (claim 7).
  • both drive rods which are offset in particular along the transverse drive axis against each other. Both drive rods pass or enforce the punch tool carrier along the stroke axis.
  • About both drive rods of the scraper carrier is supported in the direction of the transverse movement axis and guided along the lifting axis movable on the punching tool carrier (claim 8).
  • the provided with the Abstreifera drive rods is preferably a Abstreiferantriebsmotor with two motor units, each of which one of the two drive rods is assigned (claim 9).
  • the motor units of the scraper drive motor are designed as piston-cylinder units.
  • a punch drive in particular a drive type is provided which has a arranged between the punch drive motor and the punch tool carrier wedge gear.
  • the wedge gear comprises one or two punch drive motor side gear elements, each formed by a transverse drive element of the punch drive.
  • One or two punching tool carrier-side gear elements of the wedge gear are assigned to the one or more punch drive motor-side gear elements (claims 10, 13).
  • punch drive motor side gear elements two transverse drive elements, they are moved in opposite directions along the transverse movement axis to generate movements of the punching tool carrier along the lifting axis (claim 12).
  • the one or more transverse drive elements and / or the punching tool carrier-side gear elements of the punch drive are in an advantageous embodiment of the invention as a gear wedge (e) formed with a tilted against the transverse movement axis wedge surface (claims 11, 14).
  • the entire processing unit can be positioned on a machine frame of the machine tool along the transverse movement axis. With positioning movements carried out along the transverse movement axis, the processing unit moves the processing stations on the workpiece to be machined.
  • a workpiece to be machined and the machining unit of the machine tool are preferably positionable relative to one another in a plane extending perpendicular to the lifting axis, which is spanned by the transverse movement axis and by a further axis extending perpendicular to the transverse movement axis.
  • a corresponding mobility of the workpiece or a corresponding mobility of the machining unit or a corresponding mobility of both the workpiece and the machining unit is conceivable.
  • the movements of the processing unit along the transverse movement axis are generated by the punch drive motor drives the cross drive elements or the longitudinal axis of movement and the transverse drive elements take the punch tool carrier and the Abstreifer nie in the direction of movement.
  • a machine tool designed as a punching machine 1 has a machine frame 2 with an upper horizontal frame leg 3.
  • the upper frame leg 3 extends over a workpiece support 4, which supports a workpiece to be machined in the form of a sheet 5.
  • the punching processing of the sheet 5 is performed by means of a processing unit 6.
  • the processing unit 6 comprises a punching tool carrier 7 with a conventional tool holder 8, in which a punching tool in the form of an in FIG. 1 not shown stamping punch of conventional design can be substituted. Furthermore, the processing unit 6 comprises a ring-like scraper carrier 9, which supports a scraper 10 of conventional design for the substitute in the tool holder 6 punch.
  • the punching tool carrier 7 with the tool holder 8 and the punch inserted in the tool holder 8 on the one hand and the scraper carrier 9 with the scraper 10 on the other hand can be decoupled from each other along a vertical lifting axis 11 (Z-axis) moves and positioned.
  • the movements of the punching tool carrier 7 along the lifting axis 11 are generated by means of a motor punching drive 12.
  • a motor scraper drive 13 is provided for movement and positioning of the stripper carrier 9 along the lifting axis 11.
  • the punch drive 12 includes an electric punch drive motor 14 with two mounted on the machine frame 2 motor units 15, 16.
  • the motor unit 15 drives via an in FIG. 2 Dashed lines indicated drive spindle 46, a first transverse drive element 17, the motor unit 16 via a likewise in FIG. 2 dashed lines indicated drive spindle 47 a second transverse drive element 18 along a horizontal transverse movement axis 19 (Y-axis).
  • the drive spindles 46, 47 of the motor units 15, 16 engage for this purpose in spindle nuts 48, 49, which are attached to the first transverse drive element 17 and to the second transverse drive element 18 ( FIG. 2 ).
  • the drive spindles 46, 47 have the same direction thread. In the same direction of rotation drive the spindles 46, 47 consequently the spindle nuts 48, 49 and the transverse drive elements 17, 18 connected thereto along the transverse movement axis 19 rectified. Opposite rotational movements of the drive spindles 46, 47 cause opposite movements of the spindle nuts 48, 49 and the transverse drive elements 17, 18 along the transverse movement axis 19th
  • the first transverse drive element 17 and the second transverse drive element 18 are guided on the transverse drive elements 17, 18 common guide rails 20 of the processing unit 6 in the direction of movement.
  • the guide rails 20 are on the in FIG. 2 For clarity, not shown machine frame 2 of the punching machine 1 and thus form a support structure of the processing unit. 6
  • the first transverse drive element 17 and the second transverse drive element 18 are part of a wedge gear 21, which is provided between the punch drive motor 14 and the motor units 15, 16 on the one hand and the punch tool carrier 7 on the other.
  • the first transverse drive element 17 and the second transverse drive element 18 form punch drive motor-side gear elements of the wedge gear 21 designed as gear wedges.
  • the transverse drive elements 17, 18 cooperate with gear wedges 24, 25 of the punching tool carrier 7.
  • the gear wedges 24, 25 form punching tool carrier side gear elements of the wedge gear 21 and are provided with oppositely extending against the transverse movement axis 19 wedge surfaces 26, 27, which in turn the wedge surfaces 22, 23 of the first transverse drive element 17 and the second transverse drive element 18 opposite.
  • the punching tool carrier 7 is suspended on the first transverse drive element 17 and on the second transverse drive element 18.
  • the transverse drive elements 17, 18 are supported via the guide rails 20 on the machine frame 2 of the punching machine 1 in the vertical direction and thus along the lifting axis 11.
  • the first Transverse drive element 17 and the second transverse drive element 18 relative to the punch tool carrier 7 movable.
  • the first transverse drive element 17 and the second transverse drive element 18 along the transverse movement axis 19 are maximally spaced from each other.
  • the punching tool carrier 7 is therefore raised relative to the workpiece support 4 and the sheet 5 mounted thereon along the lifting axis 11 maximum.
  • the motor units 15, 16 of the punching drive motor 14 are actuated with corresponding opposite direction of rotation of the drive spindles 46, 47, the transverse drive elements 17, 18 driven by the motor units 15, 16 move along the transverse movement axis 19 toward one another. Due to the horizontal positive guidance of the transverse drive elements 17, 18 causes the wedge gear 21, that due to the mutual approach of the first transverse drive element 17 and the second transverse drive element 18 of the punch carrier 7 along the lifting axis 11 with a power stroke to the workpiece support 4 and the sheet to be machined 5 out lowers.
  • the executed for processing the sheet 5 lowering movement of the punch carrier 7 along the lifting axis 11 ends as soon as the mounted on the tool holder 8 of the punch carrier 7 punch has penetrated the sheet 5 and thereby processed punched.
  • punching processing of the sheet 5 of the punch acts together with a provided on the underside of the sheet 5 and not visible in the illustrations punching die of conventional design.
  • the entire processing unit 6 are moved along the upper frame leg 3 of the machine frame 2 to another processing point, so the motor units 15, 16 and their drive spindles 46, 47 to operate with the same direction of rotation.
  • the transverse drive elements 17, 18 and with these move the entire processing unit 6, starting from the position according to FIG. 1 along the transverse movement axis 19 in FIG FIG. 1 to the right or to the left.
  • the scraper carrier 9 and the scraper 10 are moved along the lifting axis 11 by means of a scraper drive motor 32 of the scraper drive 13, wherein the scraper drive motor 32 comprises two motor units in the form of piston-cylinder units 33, 34.
  • a second drive rod 36 connects the stripper carrier 9 to the piston-cylinder unit 34.
  • the drive rods 35, 36 are piston rods of the piston-cylinder units 33, 34.
  • first drive rod 35 and the second drive rod 36 are offset from each other. Both the first drive rod 35 and the second drive rod 36 passes through the punching tool carrier 7 along the lifting axis 11. About the drive rods 35, 36 of the scraper carrier 9 is supported on the punching tool carrier 7 in the direction of the transverse movement axis 19 and guided along the lifting axis 11 movable.
  • the first transverse drive element 17 and the second transverse drive element 18 are movable relative to the Abstreiferthere 9 along the transverse movement axis 19.
  • the movements performed by the transverse drive elements 17, 18 relative to the stripper carrier 9 along the transverse movement axis 19 are guided.
  • 37 guide shoes 38, 39 and at the top of the transverse drive elements 17, 18 guide rails 40, 41 are arranged on a provided for the piston-cylinder units 33, 34 and a support structure forming supports.
  • FIG. 1 is located on the scraper carrier 9 mounted scraper 10 in a position in which the scraper 10 along the lifting axis 11 is slightly spaced from the top of the sheet to be machined.
  • the clamping device 42 is provided on the support 37 for the piston-cylinder units 33, 34 and comprises switchable clamping units 43, 44.
  • the clamping unit 43 sets the first drive rod 35 along the lifting axis 11.
  • the clamping unit 44 serves to lock the second drive rod 36 along the lifting axis 11.
  • the scraper 10 is in the operating mode "passive scraper". In this operating mode, the scraper 10 maintains the distance defined by the clamping device 42 from the sheet 5 to be processed, regardless of the instantaneous position of the punching tool carrier 7 and of the punching tool attached thereto.
  • a numerical machine control 45 is provided, which in FIG. 1 is hinted at.
  • the numerical machine control 45 also assumes the control of the other functions of the machine tool 1, including the above-described traversing movements of the entire processing unit 6 along the transverse movement axis 19.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Press Drives And Press Lines (AREA)

Description

Die Erfindung betrifft eine Bearbeitungseinheit einer Werkzeugmaschine zur stanzenden Bearbeitung von Werkstücken, insbesondere von Blechen, mit einem Stanzwerkzeugträger, an welchem ein Stanzwerkzeug anbringbar ist, sowie mit einem Stanzantrieb, der ein Querantriebselement aufweist, wobei der Stanzwerkzeugträger längs einer Hubachse bewegbar ist, indem das Querantriebselement mittels eines Stanzantriebsmotors des Stanzantriebs relativ zu dem Stanzwerkzeugträger mit einer Antriebs-Querbewegung längs einer Querbewegungsachse antreibbar ist, die in Querrichtung der Hubachse des Stanzwerkzeugträgers verläuft.The invention relates to a processing unit of a machine tool for punching machining of workpieces, in particular sheets, with a punching tool carrier, to which a punching tool is attachable, and with a punch drive, which has a transverse drive element, wherein the punching tool carrier along a lifting axis is movable by the transverse drive element is driven by a punch drive motor of the punching drive relative to the punching tool carrier with a transverse drive movement along a transverse movement axis which extends in the transverse direction of the stroke axis of the punching tool carrier.

Die Erfindung betrifft des Weiteren eine Werkzeugmaschine zur stanzenden Bearbeitung von Werkstücken mit einer Bearbeitungseinheit der vorstehenden Art.The invention further relates to a machine tool for punching machining workpieces with a processing unit of the above type.

Gattungsgemäßer Stand der Technik ist bekannt aus EP 2 527 058 A1 . Diese Druckschrift offenbart eine Presse mit einer Hubantriebsvorrichtung, mittels derer ein Pressenwerkzeug entlang einer Hubachse in Richtung auf ein mit dem Pressenwerkzeug zu bearbeitendes Werkstück und/oder in Gegenrichtung bewegbar ist. Zur Erzeugung der Bewegung des Pressenwerkzeugs längs der Hubachse umfasst die Hubantriebsvorrichtung einen Antriebsmotor sowie ein zwischen dem Antriebsmotor und dem Pressenwerkzeug angeordnetes Keilgetriebe. Antriebsseitige Keilgetriebeelemente werden mittels des Antriebsmotors in Querrichtung der Hubachse des Pressenwerkzeugs bewegt. Bei ihrer Bewegung wirken die antriebsseitigen Keilgetriebeelemente mit abtriebsseitigen Keilgetriebeelementen zusammen, an welche das Pressenwerkzeug angebunden ist und die sich aufgrund der von den antriebsseitigen Keilgetriebeelementen in Querrichtung der Hubachse ausgeführten Bewegungen gemeinschaftlich mit dem Pressenwerkzeug längs der Hubachse bewegen.Generic prior art is known from EP 2 527 058 A1 , This document discloses a press with a lifting drive device, by means of which a press tool along a stroke axis in the direction of one with the Press tool to be machined workpiece and / or in the opposite direction is movable. To generate the movement of the press tool along the lifting axis, the lifting drive device comprises a drive motor and a wedge gear arranged between the drive motor and the press tool. Drive-side wedge gear elements are moved by means of the drive motor in the transverse direction of the stroke axis of the press tool. During their movement, the drive-side wedge gear elements cooperate with output-side wedge gear elements, to which the press tool is connected and which move together with the press tool along the lifting axis due to the movements carried out by the drive side wedge gear elements in the transverse direction of the lifting axis.

Die Funktionalität des Standes der Technik zu erweitern, ist Aufgabe der vorliegenden Erfindung.To extend the functionality of the prior art is an object of the present invention.

Erfindungsgemäß gelöst wird diese Aufgabe durch die Bearbeitungseinheit gemäß Patentanspruch 1 und durch die Werkzeugmaschine gemäß Patentanspruch 15.This object is achieved according to the invention by the processing unit according to patent claim 1 and by the machine tool according to patent claim 15.

Zusätzlich zu einer Stanzeinheit mit einem Stanzwerkzeugträger für ein Stanzwerkzeug und mit einem Stanzantrieb zum Bewegen des Stanzwerkzeugträgers und des Stanzwerkzeugs längs einer Hubachse verfügt die erfindungsgemäße Bearbeitungseinheit über eine Abstreifereinheit mit einem Abstreifer für das Stanzwerkzeug der Stanzeinheit, wobei der Abstreiferträger und somit auch der Abstreifer entkoppelt von dem Stanzwerkzeug längs der Hubachse positioniert werden können. Der Stanzantrieb umfasst ein Querantriebselement, das zur Erzeugung von Bewegungen des Stanzwerkzeugträgers längs der Hubachse mit Antriebs-Querbewegungen längs einer in Querrichtung der Hubachse verlaufenden Querbewegungsachse angetrieben wird. Zur Entkoppelung der Abstreifervon der Stanzwerkzeugbewegung ist zum einen das Querantriebselement des Stanzantriebs bei seinen Antriebs-Querbewegungen relativ zu dem Abstreiferträger längs der Querbewegungsachse beweglich. Außerdem können sich der Stanzwerkzeugträger und der Abstreiferträger relativ zueinander längs der Hubachse bewegen. Die Position des Abstreiferträgers und somit auch die Position des an dem Abstreiferträger anzubringenden Abstreifers längs der Hubachse lässt sich folglich unabhängig von der Position definieren, welche der Stanzwerkzeugträger und das Stanzwerkzeug längs der Hubachse einnehmen. Bewegungen des Querantriebselements des Stanzantriebs längs der Querbewegungsachse wirken sich nicht auf die Position des Abstreiferträgers und des Abstreifers längs der Hubachse aus.In addition to a punching unit with a punching tool carrier for a punching tool and with a punching drive for moving the punching tool carrier and the punching tool along a lifting axis, the machining unit according to the invention has a scraper unit with a scraper for the punching tool of the punching unit, wherein the scraper carrier and thus also the scraper decoupled from the punching tool can be positioned along the stroke axis. The punch drive comprises a transverse drive element, which is driven to generate movements of the punching tool carrier along the lifting axis with transverse drive movements along a transverse axis of movement of the lifting axis extending transverse movement axis. In order to decouple the scraper from the punching tool movement, the transverse drive element of the punching drive is movable in its transverse drive movements relative to the scraper carrier along the transverse movement axis. In addition, the punch tool carrier and the scraper carrier can move relative to each other along the lifting axis. The position of the scraper carrier and thus the position of the The scraper to be attached to the scraper carrier along the lifting axis can consequently be defined independently of the position which the punching tool carrier and the punching tool take along the lifting axis. Movements of the transverse drive element of the punch drive along the transverse movement axis do not affect the position of the scraper carrier and the scraper along the lifting axis.

Damit besteht im Falle der Erfindung insbesondere die Möglichkeit, den Abstreifer nicht nur in einem Betriebsmodus "aktiver Abstreifer" sondern auch in einem Betriebsmodus "passiver Abstreifer" zu betreiben.Thus, in the case of the invention, it is possible in particular to operate the wiper not only in an operating mode "active wiper" but also in a "passive wiper" operating mode.

In dem Betriebsmodus "aktiver Abstreifer" bedarf der Abstreifer nicht zwingend eines eigenständigen Antriebs, um Bewegungen längs der Hubachse ausführen zu können. Vielmehr werden Positionen, welche der Abstreifer längs der Hubachse einnimmt, sowohl bei einem längs der Hubachse zu dem zu bearbeitenden Werkstück hin gerichteten Arbeitshub des Stanzwerkzeugs als auch bei einem in Gegenrichtung ausgeführten Rückhub durch das Stanzwerkzeug beziehungsweise durch den mit dem Stanzwerkzeug versehenen Stanzwerkzeugträger definiert. Bewegungsmäßig mit dem Stanzwerkzeug gekoppelt bewegt sich der Abstreifer bei dem Arbeitshub des Stanzwerkzeugs längs der Hubachse in Richtung auf das zu bearbeitende Werkstück, bis der Abstreifer auf dem Werkstück aufsetzt. Bei auf dem Werkstück abgestütztem und folglich in Richtung der Hubachse zwangsläufig ortsunveränderlichem Abstreifer setzt das Stanzwerkzeug seinen Arbeitshub längs der Hubachse fort, bis das Werkstück stanzend bearbeitet ist. Mit Erreichen des Totpunktes des Arbeitshubs wird der dem Arbeitshub entgegengerichtete Rückhub des Stanzwerkzeugs eingeleitet und das Stanzwerkzeug bewegt sich zunächst relativ zu dem weiterhin auf dem Werkstück aufsitzenden Abstreifer in Gegenrichtung des Arbeitshubs längs der Hubachse, bis das Stanzwerkzeug aus dem nun stanzend bearbeiteten Werkstück austritt. Sobald das Stanzwerkzeug aus dem Werkstück ausgetreten ist, nimmt es den Abstreifer in der Rückhubrichtung mit einer von dem Werkstück weg gerichteten Bewegung mit.In the operating mode "active scraper", the scraper does not necessarily require a separate drive in order to be able to execute movements along the lifting axis. Rather, positions which the scraper occupies along the lifting axis, both defined in a along the stroke axis to the workpiece to be machined working stroke of the punching tool as well as executed in the opposite direction return stroke by the punching tool or by the punch tool provided with the punching tool. Movably coupled with the punching tool, the scraper moves during the working stroke of the punching tool along the lifting axis in the direction of the workpiece to be machined until the scraper touches on the workpiece. When supported on the workpiece and thus inevitably in the direction of the lifting axis ortsunveränderlichem scraper, the punch continues its working stroke along the stroke axis until the workpiece is machined punching. Upon reaching the dead center of the power stroke of the working stroke opposite return stroke of the punching tool is initiated and the punch moves first relative to the still sitting on the workpiece scraper in the opposite direction of the working stroke along the stroke axis until the punching tool emerges from the now punched machined workpiece. Once the punching tool has exited the workpiece, it will carry the wiper in the return stroke direction with a movement away from the workpiece.

In dem Betriebsmodus "passiver Abstreifer" wird der Abstreifer längs der Hubachse in eine Position bewegt, in welcher der Abstreifer von dem Werkstück beabstandet ist. Bei von dem Werkstück beabstandetem Abstreifer wird das Werkstück mittels des Stanzwerkzeugs bearbeitet, das relativ zu dem Abstreifer einen entsprechend bemessenen Hub längs der Hubachse ausführt. Abweichend von dem vorstehend beschriebenen Betriebsmodus "aktiver Abstreifer" wird in dem Betriebsmodus "passiver Abstreifer" die von dem Abstreifer während der Werkstückbearbeitung längs der Hubachse eingenommene Position durch einen separaten Abstreiferantrieb definiert, da anders als in dem Betriebsmodus "aktiver Abstreifer" das Werkstück hierfür nicht genutzt werden kann. Damit bei von dem Werkstück beabstandetem Abstreifer die Werkstückbearbeitung mittels des Stanzwerkzeugs durchgeführt werden kann, muss die Möglichkeit bestehen, den Abstreifer und das Stanzwerkzeug ohne Zuhilfenahme des Werkstücks voneinander entkoppelt längs der Hubachse zu bewegen.In the "passive wiper" mode of operation, the wiper is moved along the lift axis to a position in which the wiper is spaced from the workpiece. When spaced from the workpiece scraper, the workpiece is machined by means of the punching tool, which performs relative to the scraper a correspondingly sized stroke along the lifting axis. In contrast to the "active scraper" operating mode described above, in the "passive scraper" operating mode, the position occupied by the scraper during workpiece machining along the stroke axis is defined by a separate scraper drive, since unlike the "active scraper" mode of operation, the workpiece is not can be used. In order for workpiece machining to be carried out by means of the punching tool when the scraper is spaced from the workpiece, there must be the possibility of moving the scraper and the punching tool along the lifting axis without the aid of the workpiece being decoupled from one another.

Besondere Ausführungsarten der Erfindung gemäß den unabhängigen Patentansprüchen 1 und 15 ergeben sich aus den abhängigen Patentansprüchen 2 bis 14 und 16.Particular embodiments of the invention according to the independent claims 1 and 15 emerge from the dependent claims 2 to 14 and 16.

Damit sich das Querantriebselement des Stanzantriebs funktionssicher relativ zu dem Abstreiferträger längs der Querbewegungsachse bewegen kann, ist der Abstreiferträger in bevorzugter Ausgestaltung der Erfindung in Richtung der Querbewegungsachse abgestützt, wobei im Interesse einer besonders kompakten Bauweise der Bearbeitungseinheit zur Abstützung des Abstreiferträgers der Stanzwerkzeugträger genutzt wird (Patentanspruch 2).Thus, the transverse drive element of the punch drive functionally reliable relative to the Abstreiferträger can move along the transverse movement axis, the Abstreiferträger is supported in a preferred embodiment of the invention in the direction of the transverse movement axis, being used in the interest of a particularly compact design of the processing unit for supporting the Abstreiferträgers the punching tool carrier (claim 2).

Eine definierte Bewegung des Querantriebselements des Stanzantriebs längs der Querbewegungsachse wird erfindungsgemäß durch eine entsprechende Führung des Querantriebselements gewährleistet. Bevorzugtermaßen dient dabei im Interesse einer kompakten Bauweise der erfindungsgemäßen Bearbeitungseinheit zur Führung des Querantriebselements längs der Querbewegungsachse eine für den Abstreiferträger vorgesehene Tragstruktur, an welcher der Abstreiferträger in Richtung der Hubachse beweglich gelagert ist (Patentanspruch 3). In Richtung der Querbewegungsachse kann die Tragstruktur für den Abstreiferträger an dem Stanzwerkzeugträger abgestützt sein, damit sich das Querantriebselement des Stanzantriebs funktionssicher relativ zu der Tragstruktur für den Abstreiferträger längs der Querbewegungsachse bewegen kann.A defined movement of the transverse drive element of the punch drive along the transverse movement axis is ensured according to the invention by a corresponding guidance of the transverse drive element. Preferred dimensions used in the interest of a compact design of the processing unit according to the invention for guiding the transverse drive element along the transverse movement axis provided for the Abstreiferträger support structure on which the Abstreiferträger is movably mounted in the direction of the lifting axis (claim 3). In the direction the transverse movement axis, the support structure for the scraper carrier may be supported on the punch carrier, so that the transverse drive element of the punch drive can move reliably relative to the support structure for the Abstreiferträger along the transverse movement axis.

Einer kompakten Bauweise der gesamten Anordnung dient auch das kennzeichnende Merkmal von Patentanspruch 4, demgemäß das Querantriebselement des Stanzantriebs an einer Tragstruktur der Bearbeitungseinheit in Richtung der Hubachse abgestützt ist und seinerseits den Abstreiferträger und/oder dessen Tragstruktur und/oder einen Abstreiferantriebsmotor des Abstreiferantriebs und/oder den Stanzwerkzeugträger in Richtung der Hubachse abstützt.A compact construction of the entire arrangement is also the characterizing feature of claim 4, according to which the transverse drive element of the punch drive is supported on a supporting structure of the machining unit in the direction of the lifting axis and in turn the Abstreiferträger and / or its support structure and / or a Abstreiferantriebsmotor the Abstreiferantriebs and / or supports the punch tool carrier in the direction of the stroke axis.

In weiterer bevorzugter Ausgestaltung der Erfindung ist als Abstreiferantriebsmotor ein Kolben-Zylinder-Motor vorgesehen (Patentanspruch 5).In a further preferred embodiment of the invention is provided as Abstreiferantriebsmotor a piston-cylinder engine (claim 5).

Eine in Richtung der Querbewegungsachse wirksame Abstützung des Abstreiferträgers an dem Stanzwerkzeugträger bei gleichzeitiger Beweglichkeit des Abstreiferträgers längs der Hubachse ist in bevorzugter Ausgestaltung der Erfindung dadurch realisiert, dass der Abstreiferträger an einen Abstreiferantriebsmotor des Abstreiferantriebs über eine Antriebsstange angebunden ist, welche den Stanzwerkzeugträger längs der Hubachse passiert, insbesondere durchsetzt, wobei der Abstreiferträger an der von dem Abstreiferantriebsmotor abliegenden Seite der Antriebsstange angeordnet ist (Patentanspruch 6).A support in the direction of the transverse movement axis of the Abstreiferträgers on the punch carrier with simultaneous mobility of the Abstreiferträgers along the lifting axis is realized in a preferred embodiment of the invention in that the Abstreiferträger is connected to a Abstreiferantriebsmotor the Abstreiferantriebs via a drive rod which passes the punching tool carrier along the Hubachse , in particular interspersed, wherein the scraper carrier is arranged on the side remote from the Abstreiferantriebsmotor side of the drive rod (claim 6).

Ist als Abstreiferantriebsmotor ein Kolben-Zylinder-Motor vorgesehen, so kann als den Stanzwerkzeugträger passierende beziehungsweise durchsetzende Antriebsstange eine Kolbenstange genutzt werden, die an dem Kolben des Abstreiferantriebsmotors angebracht ist und an deren von dem Abstreiferantriebsmotor abliegendes Ende der Abstreiferträger angebunden ist (Patentanspruch 7).If a piston-cylinder motor is provided as the scraper drive motor, then a piston rod which is attached to the piston of the scraper drive motor and is connected to its end remote from the scraper drive motor end of the scraper carrier can be used as the punch carrier passing or passing through the drive rod (claim 7).

Zur Gewährleistung einer besonders wirksamen Lagerung und Führung des Abstreiferträgers und somit auch des Abstreifers dienen in weiterer bevorzugter Ausgestaltung der Erfindung zwei Antriebsstangen, die insbesondere längs der Querantriebsachse gegeneinander versetzt sind. Beide Antriebsstangen passieren beziehungsweise durchsetzen den Stanzwerkzeugträger längs der Hubachse. Über beide Antriebsstangen ist der Abstreiferträger in Richtung der Querbewegungsachse abgestützt und längs der Hubachse beweglich an dem Stanzwerkzeugträger geführt (Patentanspruch 8).To ensure a particularly effective storage and guidance of the scraper carrier and thus also of the scraper serve in a further preferred embodiment of the invention, two drive rods, which are offset in particular along the transverse drive axis against each other. Both drive rods pass or enforce the punch tool carrier along the stroke axis. About both drive rods of the scraper carrier is supported in the direction of the transverse movement axis and guided along the lifting axis movable on the punching tool carrier (claim 8).

Zur Bewegung der mit dem Abstreiferträger versehenen Antriebsstangen dient dabei bevorzugtermaßen ein Abstreiferantriebsmotor mit zwei Motoreinheiten, von denen jeweils eine einer der beiden Antriebsstangen zugeordnet ist (Patentanspruch 9). In bevorzugter Ausgestaltung der Erfindung sind die Motoreinheiten des Abstreiferantriebsmotors als Kolben-Zylinder-Einheiten ausgeführt.To move the provided with the Abstreiferträger drive rods is preferably a Abstreiferantriebsmotor with two motor units, each of which one of the two drive rods is assigned (claim 9). In a preferred embodiment of the invention, the motor units of the scraper drive motor are designed as piston-cylinder units.

Als Stanzantrieb ist erfindungsgemäß insbesondere eine Antriebsbauart vorgesehen, die ein zwischen dem Stanzantriebsmotor und dem Stanzwerkzeugträger angeordnetes Keilgetriebe aufweist. Das Keilgetriebe umfasst ein oder zwei stanzantriebsmotorseitige Getriebeelemente, die jeweils von einem Querantriebselement des Stanzantriebs gebildet werden. Dem oder den stanzantriebsmotorseitigen Getriebeelementen sind ein oder zwei stanzwerkzeugträgerseitige Getriebeelemente des Keilgetriebes zugeordnet (Patentansprüche 10, 13).As a punch drive according to the invention in particular a drive type is provided which has a arranged between the punch drive motor and the punch tool carrier wedge gear. The wedge gear comprises one or two punch drive motor side gear elements, each formed by a transverse drive element of the punch drive. One or two punching tool carrier-side gear elements of the wedge gear are assigned to the one or more punch drive motor-side gear elements (claims 10, 13).

Sind als stanzantriebsmotorseitige Getriebeelemente zwei Querantriebselemente vorgesehen, so werden diese gegenläufig längs der Querbewegungsachse bewegt, um Bewegungen des Stanzwerkzeugträgers längs der Hubachse zu erzeugen (Patentanspruch 12).Are provided as punch drive motor side gear elements two transverse drive elements, they are moved in opposite directions along the transverse movement axis to generate movements of the punching tool carrier along the lifting axis (claim 12).

Das oder die Querantriebselemente und/oder das oder die stanzwerkzeugträgerseitigen Getriebeelemente des Stanzantriebs sind in vorteilhafter Ausgestaltung der Erfindung als Getriebekeil(e) ausgebildet mit einer gegen die Querbewegungsachse geneigten Keilfläche (Patentansprüche 11, 14).The one or more transverse drive elements and / or the punching tool carrier-side gear elements of the punch drive are in an advantageous embodiment of the invention as a gear wedge (e) formed with a tilted against the transverse movement axis wedge surface (claims 11, 14).

In bevorzugter Ausgestaltung der erfindungsgemäßen Werkzeugmaschine ist ausweislich Patentanspruchs 16 vorgesehen, dass die gesamte Bearbeitungseinheit an einem Maschinengestell der Werkzeugmaschine längs der Querbewegungsachse positionierbar ist. Mit entlang der Querbewegungsachse ausgeführten Positionierbewegungen fährt die Bearbeitungseinheit die Bearbeitungsstellen an dem zum bearbeitenden Werkstück an. Dabei sind ein zu bearbeitendes Werkstück und die Bearbeitungseinheit der Werkzeugmaschine bevorzugtermaßen relativ zueinander in einer sich senkrecht zu der Hubachse erstreckenden Ebene positionierbar, die von der Querbewegungsachse sowie von einer senkrecht zu der Querbewegungsachse verlaufenden weiteren Achse aufgespannt wird. Zur Erzeugung der Relativbewegung von Bearbeitungseinheit und Werkstück in Richtung der weiteren Bewegungsachse ist eine entsprechende Beweglichkeit des Werkstücks oder eine entsprechende Beweglichkeit der Bearbeitungseinheit oder eine entsprechende Beweglichkeit sowohl des Werkstücks als auch der Bearbeitungseinheit denkbar.In a preferred embodiment of the inventive machine tool according to claim 16 is provided that the entire processing unit can be positioned on a machine frame of the machine tool along the transverse movement axis. With positioning movements carried out along the transverse movement axis, the processing unit moves the processing stations on the workpiece to be machined. In this case, a workpiece to be machined and the machining unit of the machine tool are preferably positionable relative to one another in a plane extending perpendicular to the lifting axis, which is spanned by the transverse movement axis and by a further axis extending perpendicular to the transverse movement axis. To generate the relative movement of the machining unit and workpiece in the direction of the further movement axis, a corresponding mobility of the workpiece or a corresponding mobility of the machining unit or a corresponding mobility of both the workpiece and the machining unit is conceivable.

In bevorzugter Ausgestaltung der Erfindung werden die Bewegungen der Bearbeitungseinheit längs der Querbewegungsachse erzeugt, indem der Stanzantriebsmotor das oder die Querantriebselemente längs der Querbewegungsachse antreibt und die Querantriebselemente den Stanzwerkzeugträger und den Abstreiferträger in der Bewegungsrichtung mitnehmen.In a preferred embodiment of the invention, the movements of the processing unit along the transverse movement axis are generated by the punch drive motor drives the cross drive elements or the longitudinal axis of movement and the transverse drive elements take the punch tool carrier and the Abstreiferträger in the direction of movement.

Nachfolgend wird die Erfindung anhand beispielhafter schematischer Darstellungen näher erläutert. Es zeigen:

Figur 1
eine stark schematisierte Darstellung einer Werkzeugmaschine mit einer Bearbeitungseinheit zur stanzenden Bearbeitung von Blechen und
Figur 2
die Bearbeitungseinheit gemäß Figur 1 in detaillierterer perspektivischer Darstellung.
The invention will be explained in more detail below with reference to exemplary schematic illustrations. Show it:
FIG. 1
a highly schematic representation of a machine tool with a processing unit for punching processing of sheets and
FIG. 2
the processing unit according to FIG. 1 in a more detailed perspective view.

Gemäß Figur 1 weist eine als Stanzmaschine 1 ausgeführte Werkzeugmaschine ein Maschinengestell 2 mit einem oberen horizontalen Gestellschenkel 3 auf. Der obere Gestellschenkel 3 erstreckt sich über eine Werkstückauflage 4, die ein zu bearbeitendes Werkstück in Form eines Blechs 5 lagert.According to FIG. 1 For example, a machine tool designed as a punching machine 1 has a machine frame 2 with an upper horizontal frame leg 3. The upper frame leg 3 extends over a workpiece support 4, which supports a workpiece to be machined in the form of a sheet 5.

Die stanzende Bearbeitung des Blechs 5 wird mittels einer Bearbeitungseinheit 6 durchgeführt. Die Bearbeitungseinheit 6 umfasst einen Stanzwerkzeugträger 7 mit einer herkömmlichen Werkzeugaufnahme 8, in welche ein Stanzwerkzeug in Form eines in Figur 1 nicht dargestellten Stanzstempels üblicher Bauart eingewechselt werden kann. Weiterhin umfasst die Bearbeitungseinheit 6 einen ringartigen Abstreiferträger 9, der einen Abstreifer 10 herkömmlicher Bauart für den in die Werkzeugaufnahme 6 eingewechselten Stanzstempel lagert.The punching processing of the sheet 5 is performed by means of a processing unit 6. The processing unit 6 comprises a punching tool carrier 7 with a conventional tool holder 8, in which a punching tool in the form of an in FIG. 1 not shown stamping punch of conventional design can be substituted. Furthermore, the processing unit 6 comprises a ring-like scraper carrier 9, which supports a scraper 10 of conventional design for the substitute in the tool holder 6 punch.

Der Stanzwerkzeugträger 7 mit der Werkzeugaufnahme 8 und dem in die Werkzeugaufnahme 8 eingewechselten Stanzstempel einerseits und der Abstreiferträger 9 mit dem Abstreifer 10 andererseits können voneinander entkoppelt längs einer vertikalen Hubachse 11 (Z-Achse) bewegt und positioniert werden. Die Bewegungen des Stanzwerkzeugträgers 7 längs der Hubachse 11 werden mittels eines motorischen Stanzantriebs 12 erzeugt. Zur Bewegung und Positionierung des Abstreiferträgers 9 längs der Hubachse 11 ist ein motorischer Abstreiferantrieb 13 vorgesehen.The punching tool carrier 7 with the tool holder 8 and the punch inserted in the tool holder 8 on the one hand and the scraper carrier 9 with the scraper 10 on the other hand can be decoupled from each other along a vertical lifting axis 11 (Z-axis) moves and positioned. The movements of the punching tool carrier 7 along the lifting axis 11 are generated by means of a motor punching drive 12. For movement and positioning of the stripper carrier 9 along the lifting axis 11, a motor scraper drive 13 is provided.

Der Stanzantrieb 12 umfasst einen elektrischen Stanzantriebmotor 14 mit zwei an dem Maschinengestell 2 montierten Motoreinheiten 15, 16. Die Motoreinheit 15 treibt über eine in Figur 2 gestrichelt angedeutete Antriebsspindel 46 ein erstes Querantriebselement 17, die Motoreinheit 16 über eine gleichfalls in Figur 2 gestrichelt angedeutete Antriebsspindel 47 ein zweites Querantriebselement 18 längs einer horizontalen Querbewegungsachse 19 (Y-Achse) an. Die Antriebsspindeln 46, 47 der Motoreinheiten 15, 16 greifen zu diesem Zweck in Spindelmuttern 48, 49 ein, die an dem ersten Querantriebselement 17 und an dem zweiten Querantriebselement 18 angebracht sind (Figur 2).The punch drive 12 includes an electric punch drive motor 14 with two mounted on the machine frame 2 motor units 15, 16. The motor unit 15 drives via an in FIG. 2 Dashed lines indicated drive spindle 46, a first transverse drive element 17, the motor unit 16 via a likewise in FIG. 2 dashed lines indicated drive spindle 47 a second transverse drive element 18 along a horizontal transverse movement axis 19 (Y-axis). The drive spindles 46, 47 of the motor units 15, 16 engage for this purpose in spindle nuts 48, 49, which are attached to the first transverse drive element 17 and to the second transverse drive element 18 ( FIG. 2 ).

Die Antriebsspindeln 46, 47 weisen gleichsinnige Gewinde auf. Bei gleichsinniger Drehrichtung treiben die Antriebsspindeln 46, 47 folglich die Spindelmuttern 48, 49 und die mit diesen verbundenen Querantriebselemente 17, 18 längs der Querbewegungsachse 19 gleichgerichtet an. Einander entgegengerichtete Drehbewegungen der Antriebsspindeln 46, 47 bewirken gegenläufige Bewegungen der Spindelmuttern 48, 49 und der Querantriebselemente 17, 18 längs der Querbewegungsachse 19.The drive spindles 46, 47 have the same direction thread. In the same direction of rotation drive the spindles 46, 47 consequently the spindle nuts 48, 49 and the transverse drive elements 17, 18 connected thereto along the transverse movement axis 19 rectified. Opposite rotational movements of the drive spindles 46, 47 cause opposite movements of the spindle nuts 48, 49 and the transverse drive elements 17, 18 along the transverse movement axis 19th

Bei ihren Bewegungen längs der Querbewegungssachse 19 sind das erste Querantriebselement 17 und das zweite Querantriebselement 18 an den Querantriebselementen 17, 18 gemeinsamen Führungsschienen 20 der Bearbeitungseinheit 6 in Bewegungsrichtung geführt. Die Führungsschienen 20 sind an dem in Figur 2 der Übersichtlichkeit halber nicht dargestellten Maschinengestell 2 der Stanzmaschine 1 angebracht und bilden folglich eine Tragstruktur der Bearbeitungseinheit 6.During their movements along the transverse movement axis 19, the first transverse drive element 17 and the second transverse drive element 18 are guided on the transverse drive elements 17, 18 common guide rails 20 of the processing unit 6 in the direction of movement. The guide rails 20 are on the in FIG. 2 For clarity, not shown machine frame 2 of the punching machine 1 and thus form a support structure of the processing unit. 6

Das erste Querantriebselement 17 und das zweite Querantriebselement 18 sind Teil eines Keilgetriebes 21, das zwischen dem Stanzantriebsmotor 14 bzw. den Motoreinheiten 15, 16 einerseits und dem Stanzwerkzeugträger 7 andererseits vorgesehen ist. Das erste Querantriebselement 17 und das zweite Querantriebselement 18 bilden als Getriebekeile ausgeführte stanzantriebsmotorseitige Getriebeelemente des Keilgetriebes 21.The first transverse drive element 17 and the second transverse drive element 18 are part of a wedge gear 21, which is provided between the punch drive motor 14 and the motor units 15, 16 on the one hand and the punch tool carrier 7 on the other. The first transverse drive element 17 and the second transverse drive element 18 form punch drive motor-side gear elements of the wedge gear 21 designed as gear wedges.

An gegensinnig gegen die Querbewegungsachse 19 geneigten Keilflächen 22, 23 wirken die Querantriebselemente 17, 18 mit Getriebekeilen 24, 25 des Stanzwerkzeugträgers 7 zusammen. Die Getriebekeile 24, 25 bilden stanzwerkzeugträgerseitige Getriebeelemente des Keilgetriebes 21 und sind mit gegensinnig gegen die Querbewegungsachse 19 verlaufenden Keilflächen 26, 27 versehen, die ihrerseits den Keilflächen 22, 23 des ersten Querantriebselements 17 und des zweiten Querantriebselements 18 gegenüberliegen.In opposite directions against the transverse movement axis 19 inclined wedge surfaces 22, 23, the transverse drive elements 17, 18 cooperate with gear wedges 24, 25 of the punching tool carrier 7. The gear wedges 24, 25 form punching tool carrier side gear elements of the wedge gear 21 and are provided with oppositely extending against the transverse movement axis 19 wedge surfaces 26, 27, which in turn the wedge surfaces 22, 23 of the first transverse drive element 17 and the second transverse drive element 18 opposite.

An den Keilflächen 26, 27 der Getriebekeile 24, 25 sind Führungsschienen 28, 29 angebracht, auf denen Führungsschuhe 30, 31 aufsitzen, die ihrerseits an dem ersten Querantriebselement 17 und dem zweiten Querantriebselement 18 montiert sind. Aufgrund des in vertikaler Richtung wirksamen Formschlusses zwischen den Führungsschienen 28, 29 einerseits und den Führungsschuhen 30, 31 andererseits ist der Stanzwerkzeugträger 7 an dem ersten Querantriebselement 17 und an dem zweiten Querantriebselement 18 aufgehängt. Die Querantriebselemente 17, 18 wiederum sind über die Führungsschienen 20 an dem Maschinengestell 2 der Stanzmaschine 1 in vertikaler Richtung und somit längs der Hubachse 11 abgestützt. Längs der Querbewegungsachse 19 sind das erste Querantriebselement 17 und das zweite Querantriebselement 18 relativ zu dem Stanzwerkzeugträger 7 beweglich.On the wedge surfaces 26, 27 of the gear wedges 24, 25 guide rails 28, 29 are mounted, on which guide shoes 30, 31 are seated, which in turn are mounted on the first transverse drive element 17 and the second transverse drive element 18. Due to the positive engagement in the vertical direction between the guide rails 28, 29 on the one hand and the guide shoes 30, 31 on the other hand, the punching tool carrier 7 is suspended on the first transverse drive element 17 and on the second transverse drive element 18. The transverse drive elements 17, 18 in turn are supported via the guide rails 20 on the machine frame 2 of the punching machine 1 in the vertical direction and thus along the lifting axis 11. Along the transverse movement axis 19 are the first Transverse drive element 17 and the second transverse drive element 18 relative to the punch tool carrier 7 movable.

In Figur 1 sind das erste Querantriebselement 17 und das zweite Querantriebselement 18 längs der Querbewegungsachse 19 maximal voneinander beabstandet. Der Stanzwerkzeugträger 7 ist daher gegenüber der Werkstückauflage 4 und dem darauf gelagerten Blech 5 längs der Hubachse 11 maximal angehoben.In FIG. 1 the first transverse drive element 17 and the second transverse drive element 18 along the transverse movement axis 19 are maximally spaced from each other. The punching tool carrier 7 is therefore raised relative to the workpiece support 4 and the sheet 5 mounted thereon along the lifting axis 11 maximum.

Werden ausgehend von diesen Verhältnissen die Motoreinheiten 15, 16 des Stanzantriebsmotors 14 mit entsprechender gegensinniger Drehrichtung der Antriebsspindeln 46, 47 betätigt, so bewegen sich die von den Motoreinheiten 15, 16 angetriebenen Querantriebselemente 17, 18 längs der Querbewegungsachse 19 aufeinander zu. Aufgrund der horizontalen Zwangsführung der Querantriebselemente 17, 18 bewirkt das Keilgetriebe 21, dass sich infolge der gegenseitigen Annäherung des ersten Querantriebselements 17 und des zweiten Querantriebselements 18 der Stanzwerkzeugträger 7 längs der Hubachse 11 mit einem Arbeitshub zu der Werkstückauflage 4 und dem zu bearbeitenden Blech 5 hin absenkt.If, on the basis of these conditions, the motor units 15, 16 of the punching drive motor 14 are actuated with corresponding opposite direction of rotation of the drive spindles 46, 47, the transverse drive elements 17, 18 driven by the motor units 15, 16 move along the transverse movement axis 19 toward one another. Due to the horizontal positive guidance of the transverse drive elements 17, 18 causes the wedge gear 21, that due to the mutual approach of the first transverse drive element 17 and the second transverse drive element 18 of the punch carrier 7 along the lifting axis 11 with a power stroke to the workpiece support 4 and the sheet to be machined 5 out lowers.

Die zur Bearbeitung des Blechs 5 ausgeführte Absenkbewegung des Stanzwerkzeugträgers 7 längs der Hubachse 11 endet, sobald der an der Werkzeugaufnahme 8 des Stanzwerkzeugträgers 7 montierte Stanzstempel das Blech 5 durchdrungen und dadurch stanzend bearbeitet hat. Bei der stanzenden Bearbeitung des Blechs 5 wirkt der Stanzstempel mit einer an der Unterseite des Blechs 5 vorgesehenen und in den Abbildungen nicht erkennbaren Stanzmatrize herkömmlicher Bauart zusammen.The executed for processing the sheet 5 lowering movement of the punch carrier 7 along the lifting axis 11 ends as soon as the mounted on the tool holder 8 of the punch carrier 7 punch has penetrated the sheet 5 and thereby processed punched. In the punching processing of the sheet 5 of the punch acts together with a provided on the underside of the sheet 5 and not visible in the illustrations punching die of conventional design.

Ist der Arbeitshub beendet, so werden die Motoreinheiten 15, 16 und die Antriebsspindeln 46, 47 in ihrer Drehrichtung umgesteuert und das erste Querantriebselement 17 sowie das zweite Querantriebselement 18 werden durch die Motoreinheiten 15, 16 mit gegenläufigen Bewegungen längs der Querbewegungsachse 19 voneinander weg bewegt. In der Folge wird der Stanzwerkzeugträger 7 mit einem Rückhub längs der Hubachse 11 angehoben, bis er schließlich wieder die in Figur 1 dargestellte Position einnimmt.When the power stroke is completed, the motor units 15, 16 and the drive spindles 46, 47 are reversed in their direction of rotation and the first transverse drive element 17 and the second transverse drive element 18 are moved away from each other by the motor units 15, 16 with counter-movements along the transverse movement axis 19. As a result, the punching tool carrier 7 is raised with a return stroke along the lifting axis 11 until it finally returns to the in FIG. 1 shown position occupies.

Soll nun die gesamte Bearbeitungseinheit 6 längs des oberen Gestellschenkels 3 des Maschinengestells 2 zu einer weiteren Bearbeitungsstelle verfahren werden, so sind die Motoreinheiten 15, 16 und deren Antriebsspindeln 46, 47 mit gleichsinniger Drehrichtung zu betätigen. In Abhängigkeit von der Richtung der gleichsinnigen Drehbewegung der Antriebsspindeln 46, 47 bewegen sich die Querantriebselemente 17, 18 und mit diesen die gesamte Bearbeitungseinheit 6 ausgehend von der Position gemäß Figur 1 längs der Querbewegungsachse 19 in Figur 1 nach rechts oder nach links.If now the entire processing unit 6 are moved along the upper frame leg 3 of the machine frame 2 to another processing point, so the motor units 15, 16 and their drive spindles 46, 47 to operate with the same direction of rotation. Depending on the direction of the same direction of rotation of the drive spindles 46, 47, the transverse drive elements 17, 18 and with these move the entire processing unit 6, starting from the position according to FIG. 1 along the transverse movement axis 19 in FIG FIG. 1 to the right or to the left.

Entkoppelt von dem Stanzwerkzeugträger 7 werden der Abstreiferträger 9 und der Abstreifer 10 längs der Hubachse 11 mittels eines Abstreiferantriebsmotors 32 des Abstreiferantriebs 13 bewegt, wobei der Abstreiferantriebsmotor 32 zwei Motoreinheiten in Form von Kolben-Zylinder-Einheiten 33, 34 umfasst.Decoupled from the punching tool carrier 7, the scraper carrier 9 and the scraper 10 are moved along the lifting axis 11 by means of a scraper drive motor 32 of the scraper drive 13, wherein the scraper drive motor 32 comprises two motor units in the form of piston-cylinder units 33, 34.

An die Kolben-Zylinder-Einheit 33 ist der Abstreiferträger 9 über eine erste Antriebsstange 35 angebunden. Eine zweite Antriebsstange 36 verbindet den Abstreiferträger 9 mit der Kolben-Zylinder-Einheit 34. Dabei handelt es sich bei den Antriebsstangen 35, 36 um Kolbenstangen der Kolben-Zylinder-Einheiten 33, 34.To the piston-cylinder unit 33 of the stripper carrier 9 is connected via a first drive rod 35. A second drive rod 36 connects the stripper carrier 9 to the piston-cylinder unit 34. The drive rods 35, 36 are piston rods of the piston-cylinder units 33, 34.

Längs der Querbewegungsachse 19 sind die erste Antriebsstange 35 und die zweite Antriebsstange 36 gegeneinander versetzt. Sowohl die erste Antriebsstange 35 als auch die zweite Antriebsstange 36 durchsetzt den Stanzwerkzeugträger 7 längs der Hubachse 11. Über die Antriebsstangen 35, 36 ist der Abstreiferträger 9 an dem Stanzwerkzeugträger 7 in Richtung der Querbewegungsachse 19 abgestützt und längs der Hubachse 11 beweglich geführt.Along the transverse movement axis 19, the first drive rod 35 and the second drive rod 36 are offset from each other. Both the first drive rod 35 and the second drive rod 36 passes through the punching tool carrier 7 along the lifting axis 11. About the drive rods 35, 36 of the scraper carrier 9 is supported on the punching tool carrier 7 in the direction of the transverse movement axis 19 and guided along the lifting axis 11 movable.

Das erste Querantriebselement 17 und das zweite Querantriebselement 18 sind relativ zu dem Abstreiferträger 9 längs der Querbewegungsachse 19 beweglich. Die von den Querantriebselementen 17, 18 relativ zu dem Abstreiferträger 9 längs der Querbewegungsachse 19 ausgeführten Bewegungen sind geführt. Zu diesem Zweck sind an einem für die Kolben-Zylinder-Einheiten 33, 34 vorgesehenen und eine Tragstruktur bildenden Auflager 37 Führungsschuhe 38, 39 und an der Oberseite der Querantriebselemente 17, 18 Führungsschienen 40, 41 angeordnet. Zur Führung der Querantriebselemente 17, 18 relativ zu dem Abstreiferträger 9 längs der Querbewegungsachse 19 wirken die Führungsschuhe 38, 39 an dem Auflager 37 der Kolben-Zylinder-Einheiten 33, 34 mit den Führungsschienen 40, 41 an den Querantriebselementen 17, 18 zusammen.The first transverse drive element 17 and the second transverse drive element 18 are movable relative to the Abstreiferträger 9 along the transverse movement axis 19. The movements performed by the transverse drive elements 17, 18 relative to the stripper carrier 9 along the transverse movement axis 19 are guided. For this purpose, 37 guide shoes 38, 39 and at the top of the transverse drive elements 17, 18 guide rails 40, 41 are arranged on a provided for the piston-cylinder units 33, 34 and a support structure forming supports. To guide the transverse drive elements 17, 18 relative to the Abstreiferträger 9 along the transverse movement axis 19, the guide shoes 38, 39 on the support 37 of the piston-cylinder units 33, 34 with the guide rails 40, 41 on the transverse drive elements 17, 18 together.

Gleichzeitig übernehmen die Querantriebselemente 17, 18 die Abstützung des Abstreiferträgers 9 und des Auflagers 37 sowie die Abstützung des Abstreiferantriebsmotors 32 und der Antriebsstangen 35, 36 in Richtung der Hubachse 11.At the same time take the transverse drive elements 17, 18, the support of the Abstreiferträgers 9 and the support 37 and the support of the Abstreiferantriebsmotors 32 and the drive rods 35, 36 in the direction of the lifting axis eleventh

Gemäß Figur 1 befindet sich der an dem Abstreiferträger 9 montierte Abstreifer 10 in einer Position, in welcher der Abstreifer 10 längs der Hubachse 11 geringfügig von der Oberseite des zu bearbeitenden Blechs 5 beabstandet ist. In dieser Position längs der Hubachse 11 werden der Abstreiferträger 9 und der Abstreifer 10 mittels einer Klemmvorrichtung 42 gehalten. Die Klemmvorrichtung 42 ist an dem Auflager 37 für die Kolben-Zylinder-Einheiten 33, 34 vorgesehen und umfasst schaltbare Klemmeinheiten 43, 44. Bei entsprechendem Schaltzustand legt die Klemmeinheit 43 die erste Antriebsstange 35 längs der Hubachse 11 fest. Entsprechend dient die Klemmeinheit 44 dazu, die zweite Antriebsstange 36 längs der Hubachse 11 zu arretieren. Bei geklemmten Antriebsstangen 35, 36 befindet sich der Abstreifer 10 in dem Betriebsmodus "passiver Abstreifer". In diesem Betriebsmodus behält der Abstreifer 10 den mittels der Klemmvorrichtung 42 definierten Abstand von dem zu bearbeitenden Blech 5 unabhängig von der momentanen Position des Stanzwerkzeugträgers 7 sowie des an diesem angebrachten Stanzwerkzeugs bei.According to FIG. 1 is located on the scraper carrier 9 mounted scraper 10 in a position in which the scraper 10 along the lifting axis 11 is slightly spaced from the top of the sheet to be machined. In this position along the lifting axis 11, the scraper carrier 9 and the scraper 10 are held by a clamping device 42. The clamping device 42 is provided on the support 37 for the piston-cylinder units 33, 34 and comprises switchable clamping units 43, 44. In a corresponding switching state, the clamping unit 43 sets the first drive rod 35 along the lifting axis 11. Accordingly, the clamping unit 44 serves to lock the second drive rod 36 along the lifting axis 11. When clamped drive rods 35, 36, the scraper 10 is in the operating mode "passive scraper". In this operating mode, the scraper 10 maintains the distance defined by the clamping device 42 from the sheet 5 to be processed, regardless of the instantaneous position of the punching tool carrier 7 and of the punching tool attached thereto.

Zur Steuerung des Stanzantriebs 12 und des Abstreiferantriebs 13 ist eine numerische Maschinensteuerung 45 vorgesehen, die in Figur 1 andeutungsweise dargestellt ist. Die numerische Maschinensteuerung 45 übernimmt auch die Steuerung der sonstigen Funktionen der Werkzeugmaschine 1, unter anderem auch die vorstehend beschriebenen Verfahrbewegungen der gesamten Bearbeitungseinheit 6 längs der Querbewegungsachse 19.For controlling the punch drive 12 and the stripper drive 13, a numerical machine control 45 is provided, which in FIG. 1 is hinted at. The numerical machine control 45 also assumes the control of the other functions of the machine tool 1, including the above-described traversing movements of the entire processing unit 6 along the transverse movement axis 19.

Claims (16)

  1. Processing unit of a machine tool (1) for the punching processing of workpieces, in particular metal sheets (5), having a punching tool carrier (7), to which a punching tool can be fitted, and having a punch drive (12) which has a transverse drive element (17, 18), wherein the punching tool carrier (7) can be moved along a stroke axis (11) by the transverse drive element (17, 18) being able to be driven by means of a punch drive motor (14) of the punch drive (12) relative to the punching tool carrier (7) with a transverse drive movement along a transverse movement axis (19) which extends in the transverse direction of the stroke axis (11),
    characterised in that
    the processing unit has a stripper carrier (9) for a stripper (10) for the punching tool which can be fitted to the punching tool carrier (7) and a stripper drive (13) by means of which the stripper carrier (9) can be moved along the stroke axis (11), wherein the transverse drive element (17, 18) of the punch drive (12) during the transverse drive movement can be moved relative to the stripper carrier (9) along the transverse movement axis (19) and the punching tool carrier (7) and the stripper carrier (9) can be moved relative to each other along the stroke axis (11).
  2. Processing unit according to claim 1, characterised in that the stripper carrier (9) is supported on the punching tool carrier (7) in the direction of the transverse movement axis (19) and is movably guided along the stroke axis (11).
  3. Processing unit according to either of the preceding claims, characterised in that the transverse drive element (17, 18) of the punch drive (12) is movably guided in the direction of the transverse movement axis (19) relative to the stripper carrier (9) by the transverse drive element (17, 18) being guided along the transverse movement axis (19) on a carrier structure (37) which is provided for the stripper carrier (9) and which itself movably supports the stripper carrier (9) in the direction of the stroke axis (11).
  4. Processing unit according to any one of the preceding claims, characterised in that the transverse drive element (17, 18) of the punch drive (12) is supported on a carrier structure (20) of the processing unit in the direction of the stroke axis (11) and in that the transverse drive element (17, 18) itself supports the stripper carrier (9) and/or a stripper drive motor (32) of the stripper drive (13) and/or the punching tool carrier (7) in the direction of the stroke axis (11) .
  5. Processing unit according to any one of the preceding claims, characterised in that the stripper drive (13) comprises a stripper drive motor (32) which is configured as a piston/cylinder motor.
  6. Processing unit according to any one of the preceding claims, characterised in that the stripper carrier (9) is connected to a stripper drive motor (32) of the stripper drive (13) by means of a drive rod (35, 36) which passes, in particular extends through, the punching tool carrier (7) along the stroke axis (11), wherein the stripper carrier (9) is arranged at the side of the drive rod (35, 36) remote from the stripper drive motor (32) and is, by means of the drive rod (35, 36), supported on the punching tool carrier (7) in the direction of the transverse movement axis (19) and movably guided along the stroke axis (11).
  7. Processing unit according to claim 5 and claim 6, characterised in that there is provided as a drive rod (35, 36) a piston rod which is fitted to the piston of the piston/cylinder motor which is provided as the stripper drive motor (32) and to the end of which remote from the piston/cylinder motor the stripper carrier (9) is connected.
  8. Processing unit according to claim 6 or claim 7, characterised in that the drive rod is provided as a first drive rod (35) and in that the stripper carrier (9) is further connected to the stripper drive motor (32) of the stripper drive (13) by means of a second drive rod (36) which is offset with respect to the first drive rod (35), in particular along the transverse drive axis (19), and which passes, in particular extends through, the punching tool carrier (7) along the stroke axis (11), wherein the stripper carrier (9) is arranged at the side of the second drive rod (36) remote from the stripper drive motor (32) and is, by means of the second drive rod (36), supported on the punching tool carrier (7) in the direction of the transverse movement axis (19) and movably guided along the stroke axis (11).
  9. Processing unit according to claim 8, characterised in that the stripper drive motor (32) comprises two motor units (33, 34) and in that one motor unit (33) of the stripper drive motor (32) is assigned to the first drive rod (35) and the other motor unit (34) of the stripper drive motor (32) is assigned to the second drive rod (36).
  10. Processing unit according to any one of the preceding claims, characterised in that the transverse drive element (17, 18) of the punch drive (12) forms a punch-drive-motor-side gear element of a wedge gear mechanism (21) which is provided between the punch drive motor (14) and the punching tool carrier (7) and cooperates with a punching-tool-carrier-side gear element of the wedge gear mechanism (21) with the punching tool carrier (7) being driven along the stroke axis (11) .
  11. Processing unit according to claim 10, characterised in that the transverse drive element (17, 18) of the punch drive (12) and/or the punching-tool-carrier-side gear element of the wedge gear mechanism (21) is configured as a gear wedge having a wedge face (22, 23, 26, 27) which is inclined with respect to the transverse movement axis (19).
  12. Processing unit according to any one of the preceding claims, characterised in that the transverse drive element is provided as a first transverse drive element (17) and in that the punch drive (12) additionally has a second transverse drive element (18), wherein the first transverse drive element (17) and the second transverse drive element (18) can be driven in opposite directions along the transverse movement axis (19) with a transverse drive movement, due to which the punching tool carrier (7) can be moved along the stroke axis (11).
  13. Processing unit according to claim 12, characterised in that the first transverse drive element (17) and the second transverse drive element (18) of the punch drive (12) each form a punch-drive-motor-side gear element of a wedge gear mechanism (21) which is provided between the punch drive motor (32) and the punching tool carrier (7), wherein with the punching tool carrier (7) being driven along the stroke axis (11), the first transverse drive element (17) cooperates with a first punching-tool-carrier-side gear element (24) of the wedge gear mechanism (21) and the second transverse drive element (18) cooperates with a second punching-tool-carrier-side gear element (25) of the wedge gear mechanism (21).
  14. Processing unit according to claim 13, characterised in that the first transverse drive element (17) and the second transverse drive element (18) of the punch drive (12) and/or the first punching-tool-carrier-side gear element (24) and the second punching-tool-carrier-side gear element (25) of the wedge gear mechanism (21) are configured as gear wedges, wherein the first transverse drive element (17) and the second transverse drive element (18) can be driven in opposing directions along the transverse movement axis (19) with a transverse drive movement and each have a wedge face (22, 23) and the wedge faces of the first transverse drive element (17) and the second transverse drive element (18) are inclined in opposite directions with respect to the transverse movement axis (19) and/or wherein the first punching-tool-carrier-side gear element (24) and the second punching-tool-carrier-side gear element (25) of the wedge gear mechanism (21) each have a wedge face (26, 27) and the wedge faces (26, 27) of the first punching-tool-carrier-side gear element (24) and the second punching-tool-carrier-side gear element (25) are inclined in opposite directions with respect to the transverse movement axis (19).
  15. Machine tool for the punching processing of workpieces, in particular metal sheets (5), characterised by a processing unit (6) according to any one of the preceding claims.
  16. Machine tool according to claim 15, characterised in that the machine tool has a machine frame (2) on which the processing unit (6) can be positioned along the transverse movement axis (19).
EP16160858.3A 2016-03-17 2016-03-17 Machining unit and machine-tool for stamping workpieces, in particular metal sheets Active EP3219404B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP16160858.3A EP3219404B1 (en) 2016-03-17 2016-03-17 Machining unit and machine-tool for stamping workpieces, in particular metal sheets
CN201710303645.6A CN107199271B (en) 2016-03-17 2017-03-16 For to workpiece, particularly to the processing unit and lathe of metal plate punch process
US15/460,841 US10543522B2 (en) 2016-03-17 2017-03-16 Processing unit and machine tool for the punching processing of workpieces
JP2017052888A JP6861546B2 (en) 2016-03-17 2017-03-17 Machine tools for punching machining units and workpieces, especially thin metal sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16160858.3A EP3219404B1 (en) 2016-03-17 2016-03-17 Machining unit and machine-tool for stamping workpieces, in particular metal sheets

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EP3219404A1 EP3219404A1 (en) 2017-09-20
EP3219404B1 true EP3219404B1 (en) 2018-06-06

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US (1) US10543522B2 (en)
EP (1) EP3219404B1 (en)
JP (1) JP6861546B2 (en)
CN (1) CN107199271B (en)

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US3225636A (en) 1960-11-01 1965-12-28 Houdaille Industries Inc Punching machine and structure therefor
US3209631A (en) * 1963-04-03 1965-10-05 Continental Can Co Work stripping mechanism for punch press die
US3295351A (en) * 1964-04-23 1967-01-03 American Can Co Self-adjusting stripping fingers
US3623389A (en) * 1966-11-14 1971-11-30 Houdaille Industries Inc Punching machine
US4283932A (en) * 1979-05-31 1981-08-18 Textron, Inc. Toggle-actuated punch stripper
FR2663807A1 (en) * 1990-06-26 1991-12-27 Philips Composants APPARATUS AND SYSTEM FOR PUNCHING PRINTED CIRCUITS.
JPH0737428U (en) * 1993-12-28 1995-07-11 日立電線株式会社 Die for punching lead frame
JP2011112625A (en) * 2009-11-30 2011-06-09 Thk Co Ltd Two-axis orthogonal guide device, three-axis orthogonal guide device, three-axis orthogonal/rotational guide device, and table device
ES2517390T3 (en) * 2011-05-26 2014-11-03 Werkzeugmaschinen Gmbh + Co. Kg Machine tool in the form of a press for the treatment of work pieces, especially metal sheets
EP2669024B1 (en) * 2012-05-30 2017-07-05 TRUMPF Werkzeugmaschinen GmbH + Co. KG Machine tool and method for pushing out a workpiece part
CN102814426B (en) * 2012-07-19 2015-01-28 东莞市精丽制罐有限公司 Production system of tank body
CN104070123B (en) * 2014-05-27 2016-11-16 安徽红桥金属制造有限公司 A kind of decompressor being easy to the demoulding
EP3025803B1 (en) * 2014-11-26 2018-05-30 TRUMPF Werkzeugmaschinen GmbH + Co. KG Drive device for a machine tool and machine tool with such a drive device

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JP2017164815A (en) 2017-09-21
US10543522B2 (en) 2020-01-28
CN107199271A (en) 2017-09-26
US20170266714A1 (en) 2017-09-21
EP3219404A1 (en) 2017-09-20
JP6861546B2 (en) 2021-04-21
CN107199271B (en) 2019-04-05

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