EP3150297B1 - Hydraulic punch machine and punch carrier for punch machine - Google Patents

Hydraulic punch machine and punch carrier for punch machine Download PDF

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Publication number
EP3150297B1
EP3150297B1 EP16190450.3A EP16190450A EP3150297B1 EP 3150297 B1 EP3150297 B1 EP 3150297B1 EP 16190450 A EP16190450 A EP 16190450A EP 3150297 B1 EP3150297 B1 EP 3150297B1
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EP
European Patent Office
Prior art keywords
punch
stripper
carrier
machine
piston unit
Prior art date
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Application number
EP16190450.3A
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German (de)
French (fr)
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EP3150297A1 (en
Inventor
Karl Buchholz
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TKR Spezialwerkzeuge GmbH
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TKR Spezialwerkzeuge GmbH
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Publication of EP3150297A1 publication Critical patent/EP3150297A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • 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
    • B21D28/34—Perforating tools; Die holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • 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
    • 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
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/14—Punching tools; Punching dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D2007/1809—Means for removing cut-out material or waste by stripping fingers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D2007/189—Mounting blanking, stripping and break-out tools

Definitions

  • the invention relates to a punch carrier for a punching device according to the preamble of claim 1.
  • Such a punch carrier is for example in the US-A-3335627 disclosed.
  • Punching devices of the type mentioned at the beginning are used to make holes in one or more metal sheets during a punching process, which are then used to accommodate suitable connecting elements such as blind rivets, blind rivet screws and / or blind rivet nuts.
  • the sheets to be processed are arranged in the punching device between the punch and a punching die, so that the hole can then be punched into the sheets, the punch being adjusted in the direction of the punching die for this purpose.
  • the size of the holes to be produced is determined by the diameter of the punching section of the punch.
  • the punches are detachably arranged on a punch holder of a piston unit of the punching device, the piston unit being displaceable in its longitudinal axis direction by a drive unit of the punching device and driving the punch through the sheet metal to be processed. Changing the punch is currently extremely time-consuming, especially since it must be ensured that all forces acting on the punch during the punching process are reliably transmitted. An exact alignment of the punch is therefore also of particular importance in order to achieve a perfect punching result.
  • the invention is based on the object of providing a punching device and a punch support for a punching device, which reliably has a simple Change of punch to adapt to changing processing requirements allowed.
  • the invention solves the problem by a punch carrier with the features of claim 1 and a punching device with the features of claim 4.
  • Advantageous further developments of the punch carrier are given in the dependent claims.
  • the punch holder allows the punch to be changed quickly and easily, and when the stripper is dismantled it can be easily removed from the punch holder running transversely to the longitudinal axis of the piston and reinserted. Only the stripper that can be attached to the punching device and that also allows the piston unit to move relative to the stripper ensures that the punch is properly seated in the punch holder in an operating position in which the punching process can be performed with the punching device. The stripper prevents the punch from slipping or sliding out of the punch holder.
  • the punch holder running transversely to the longitudinal axis direction ensures on the one hand that the punch can be easily assembled and disassembled.
  • the alignment of the punch holder ensures that forces occurring in the direction of the longitudinal axis of the piston unit during the punching process are reliably transferred from the piston unit resting on the punch to the punch, so that the punching processes are performed in the desired manner can be carried out.
  • the punch receptacle is formed by a longitudinal groove which is closed at one end and open at the other end and is C-shaped in cross section.
  • the longitudinal groove which is C-shaped in cross section, extends from an opening preferably arranged on the edge of the piston unit to its closed end.
  • the longitudinal groove is preferably designed in such a way that the punch is arranged in a preferably central operating position on the piston unit when it rests on the closed end.
  • the course of the longitudinal groove which is C-shaped in cross section, enables the punch to be fixed to the piston unit in a simple manner in the longitudinal axis direction of the piston unit.
  • the punching punch is then supported with its underside on the piston unit.
  • the C-shaped sections of the longitudinal groove secure the position of the punch in the punch receptacle, the punch having a correspondingly designed base body for this purpose, from which the punch extends through the area between the C-shaped sections of the longitudinal groove.
  • the longitudinal groove allows the basic body of the punch to be pushed in easily from the open end to the closed end.
  • the punching device can be adapted quickly, using different punching punches with identical base bodies, the diameter of which is adapted to the width of the longitudinal groove, but which have punched sections with different diameters.
  • the stripper that can be attached to the punching device is used, which also allows the piston unit to be shifted in the longitudinal axis direction and thus the punch relative to the stripper.
  • the punch receptacle can be provided, for example, with a latching body which pre-locks the punch in the operating position causes and then enables easy assembly of the wiper.
  • the punch holder has a magnetic holding element in the area of its closed end.
  • the arrangement of the magnetic holding element represents a particularly simple configuration for pre-locking the punch in the operating position in which the punch rests against the closed end of the longitudinal groove.
  • the magnetic holding element enables both simple assembly and disassembly and allows particularly inexpensive production of the punch support.
  • the number and arrangement of the holding elements can be freely selected according to the existing requirements.
  • the stripper serves to fix the exchangeable punch transversely to the longitudinal axis of the piston unit in the operating position on the punching device.
  • the arrangement of the stripper on the punching device can in principle take place in any way. For example, it can only be pushed onto a receptacle on the punching device in a clamping manner after the stripper is essentially unloaded during the punching process and therefore does not require any special position securing.
  • the stripper is designed for a lockable arrangement in the operating position on the punching device. This embodiment of the invention ensures a particularly reliable positional securing of the stripper and thus also of the exchangeable punch. The punching process can thus be carried out with particularly high quality and multiple repetitions, since the position of the punch is secured with particularly high reliability.
  • the stripper has a coating in the contact area with the punch.
  • the coating preferably a slip-reducing coating, reduces the friction between the stripper and the punch. In this way, wear is minimized and noise pollution that may arise due to friction is effectively avoided.
  • a characteristic of the hydraulic punching device with a hydraulically driven punch carrier and a punching die adapted to a punching punch is that the punching punch carrier is designed according to one or more of claims 1 to 3.
  • the punching device according to the invention is distinguished by the fact that the punching die can be changed particularly easily and quickly without having to undertake major modifications to the punching device.
  • FIG 1 an embodiment of a punch carrier 1 with a piston unit 2 and a stripper 6 is shown in a perspective view.
  • the piston unit 2 is usually exchangeable on one in the Figures 2a to 2c and 3a to 3c shown punching device 8 arranged movable in its longitudinal axis direction.
  • the piston unit 2 has a punch holder 3 with a punch holder 5 which is formed by a longitudinal groove running transversely to the longitudinal axis of the piston unit 2 and which has a C-shaped cross section.
  • a disk-shaped base carrier 12 of the punch 4 can be pushed in as far as the closed end of the longitudinal groove.
  • the diameter and the thickness of the base support 12 are adapted to the width and the height of the longitudinal groove, so that the C-shaped sections ensure that the punch 4 is locked in the direction of the longitudinal axis of the piston unit 2.
  • the punch 4 extends with a section tapered compared to the base carrier 12 between the C-shaped sections in the direction of the stripper 6, which can be locked on the punching device 8.
  • the stripper 6 serves to secure the bearing of the punch 4 in the operating position in which the punch 4 rests against the closed end of the longitudinal groove via the base support 12.
  • a passage opening 7 on the stripper 6 ensures a passage of the punch 4 when the piston unit 2 is displaced by the punch 8, so that corresponding punching operations can be carried out with the punch 4.

Description

Die Erfindung betrifft einen Stanzstempelträger für ein Stanzgerät, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a punch carrier for a punching device according to the preamble of claim 1.

Solch einen Stanzstempelträger ist zum Beispiel in der US-A-3335627 offenbart.Such a punch carrier is for example in the US-A-3335627 disclosed.

Stanzgeräte der eingangs genannten Art werden dazu benutzt, um im Rahmen eines Stanzvorgangs Löcher in ein oder mehrere Bleche einzubringen, welche dann anschließend zur Aufnahme von geeigneten Verbindungselementen, wie bspw. Blindnieten, Blindnietschrauben und/oder Blindnietmuttern, dienen.Punching devices of the type mentioned at the beginning are used to make holes in one or more metal sheets during a punching process, which are then used to accommodate suitable connecting elements such as blind rivets, blind rivet screws and / or blind rivet nuts.

Zur Herstellung der Löcher werden die zu bearbeitenden Bleche in dem Stanzgerät zwischen dem Stanzstempel sowie einer Stanzmatrize angeordnet, so dass anschließend das Loch in die Bleche gestanzt werden kann, wobei hierzu der Stanzstempel in Richtung auf die Stanzmatrize verstellt wird. Die Größe der herzustellenden Löcher bestimmt sich dabei nach dem Durchmesser des stanzenden Abschnitts der Stanzstempel. Zur Herstellung unterschiedlicher Löcher sind die Stanzstempel lösbar an einer Stanzstempelhalterung einer Kolbeneinheit des Stanzgeräts angeordnet, wobei die Kolbeneinheit in ihrer Längsachsenrichtung durch eine Antriebseinheit des Stanzgeräts verfahrbar ist und dabei den Stanzstempel durch die zu bearbeitenden Bleche hindurchtreibt. Der Wechsel des Stanzstempels stellt sich dabei derzeit als äußert zeitaufwendig dar, zumal sichergestellt werden muss, dass sämtliche auf den Stanzstempel beim Stanzvorgang wirkenden Kräfte zuverlässig übertragen werden. Eine exakte Ausrichtung des Stanzstempels ist daher auch zur Erreichung eines einwandfreien Stanzergebnisses von besonderer Bedeutung.To produce the holes, the sheets to be processed are arranged in the punching device between the punch and a punching die, so that the hole can then be punched into the sheets, the punch being adjusted in the direction of the punching die for this purpose. The size of the holes to be produced is determined by the diameter of the punching section of the punch. To produce different holes, the punches are detachably arranged on a punch holder of a piston unit of the punching device, the piston unit being displaceable in its longitudinal axis direction by a drive unit of the punching device and driving the punch through the sheet metal to be processed. Changing the punch is currently extremely time-consuming, especially since it must be ensured that all forces acting on the punch during the punching process are reliably transmitted. An exact alignment of the punch is therefore also of particular importance in order to achieve a perfect punching result.

Der Erfindung liegt die Aufgabe zugrunde, ein Stanzgerät sowie einen Stanzstempelträger für ein Stanzgerät bereitzustellen, welcher in zuverlässiger Weise einen einfachen Wechsel des Stanzstempels zur Anpassung an sich verändernde Bearbeitungsanforderungen erlaubt.The invention is based on the object of providing a punching device and a punch support for a punching device, which reliably has a simple Change of punch to adapt to changing processing requirements allowed.

Die Erfindung löst die Aufgabe durch einen Stanzstempelträger mit den Merkmalen des Anspruchs 1 sowie ein Stanzgerät mit den Merkmalen des Anspruchs 4. Vorteilhafte Weiterbildung des Stanzstempelträgers sind in den abhängigen Ansprüchen angegeben.The invention solves the problem by a punch carrier with the features of claim 1 and a punching device with the features of claim 4. Advantageous further developments of the punch carrier are given in the dependent claims.

Die Stanzstempelaufnahme erlaubt einen einfachen und schnellen Wechsel des Stanzstempels, wobei dieser im demontierten Zustand des Abstreifers in einfacher Weise aus der quer zur Längsachsenrichtung des Kolbens verlaufenden Stanzstempelaufnahme herausgenommen und wieder eingesetzt werden kann. Erst der an dem Stanzgerät befestigbare Abstreifer, welcher auch eine Bewegung der Kolbeneinheit gegenüber dem Abstreifer zulässt, gewährleistet einen ordnungsgemäßen Sitz des Stanzstempels in der Stanzstempelaufnahme in einer Betriebsposition, in der mit dem Stanzgerät die Stanzvorgänge durchgeführt werden können. Der Abstreifer verhindert ein Verrutschen oder Herausgleiten des Stanzstempels aus der Stanzstempelaufnahme.The punch holder allows the punch to be changed quickly and easily, and when the stripper is dismantled it can be easily removed from the punch holder running transversely to the longitudinal axis of the piston and reinserted. Only the stripper that can be attached to the punching device and that also allows the piston unit to move relative to the stripper ensures that the punch is properly seated in the punch holder in an operating position in which the punching process can be performed with the punching device. The stripper prevents the punch from slipping or sliding out of the punch holder.

Die quer zur Längsachsenrichtung verlaufende Stanzstempelaufnahme gewährleistet dabei einerseits, dass der Stanzstempel in einfacher Weise montiert und demontiert werden kann. Gleichzeitig gewährleistet die Ausrichtung der Stanzstempelaufnahme, dass während des Stanzvorgangs in Längsachsenrichtung der Kolbeneinheit auftretende Kräfte zuverlässig von der an dem Stanzstempel anliegenden Kolbeneinheit auf den Stanzstempel übertragen werden, sodass die Stanzvorgänge in gewünschter Weise durchgeführt werden können.The punch holder running transversely to the longitudinal axis direction ensures on the one hand that the punch can be easily assembled and disassembled. At the same time, the alignment of the punch holder ensures that forces occurring in the direction of the longitudinal axis of the piston unit during the punching process are reliably transferred from the piston unit resting on the punch to the punch, so that the punching processes are performed in the desired manner can be carried out.

Gemäß der Erfindung ist vorgesehen, dass die Stanzstempelaufnahme durch eine einenends verschlossene und anderenends offene, im Querschnitt C-förmige Längsnut gebildet ist. Gemäß der Erfindung erstreckt sich die im Querschnitt C-förmige Längsnut von einer vorzugsweise am Rand der Kolbeneinheit angeordneten Öffnung bis zu ihrem geschlossenen Ende. Die Längsnut ist dabei vorzugsweise derart ausgebildet, dass der Stanzstempel bei einer Anlage an dem geschlossenen Ende in einer vorzugsweise mittigen Betriebsposition an der Kolbeneinheit angeordnet ist.According to the invention it is provided that the punch receptacle is formed by a longitudinal groove which is closed at one end and open at the other end and is C-shaped in cross section. According to the invention, the longitudinal groove, which is C-shaped in cross section, extends from an opening preferably arranged on the edge of the piston unit to its closed end. The longitudinal groove is preferably designed in such a way that the punch is arranged in a preferably central operating position on the piston unit when it rests on the closed end.

Der im Querschnitt C-förmige Verlauf der Längsnut ermöglicht es dabei, den Stanzstempel in einfacher Weise in Längsachsenrichtung der Kolbeneinheit an dieser festzulegen. Während des Stanzvorgangs stützt sich der Stanzstempel dann mit seiner Unterseite an der Kolbeneinheit ab. In entgegengesetzter Richtung sichern die C-förmigen Abschnitte der Längsnut die Position des Stanzstempels in der Stanzstempelaufnahme, wobei der Stanzstempel hierzu einen entsprechend ausgebildeten Grundkörper aufweist, von dem aus sich der Stanzstempel durch den Bereich zwischen den C-förmigen Abschnitten der Längsnut erstreckt. Die Längsnut erlaubt das einfache Einschieben des Grundkörpers des Stanzstempels vom offenen Ende her bis zum verschlossenen Ende. Ferner kann eine schnelle Anpassung des Stanzgeräts erfolgen, wobei hierzu verschiedene Stanzstempel mit identischen Grundkörpern verwendet werden, deren Durchmesser an die Breite der Längsnut angepasst ist, die aber Stanzabschnitte mit unterschiedlichen Durchmessern aufweisen.The course of the longitudinal groove, which is C-shaped in cross section, enables the punch to be fixed to the piston unit in a simple manner in the longitudinal axis direction of the piston unit. During the punching process, the punching punch is then supported with its underside on the piston unit. In the opposite direction, the C-shaped sections of the longitudinal groove secure the position of the punch in the punch receptacle, the punch having a correspondingly designed base body for this purpose, from which the punch extends through the area between the C-shaped sections of the longitudinal groove. The longitudinal groove allows the basic body of the punch to be pushed in easily from the open end to the closed end. Furthermore, the punching device can be adapted quickly, using different punching punches with identical base bodies, the diameter of which is adapted to the width of the longitudinal groove, but which have punched sections with different diameters.

Zur Lagesicherung des Stanzstempels in der Betriebsposition in der Stanzstempelaufnahme, quer zur Bearbeitungsrichtung, dient der am Stanzgerät befestigbare Abstreifer, welcher auch eine Verlagerung der Kolbeneinheit in Längsachsenrichtung und damit des Stanzstempels gegenüber dem Abstreifer zulässt. Zur Erleichterung der Montage des Abstreifers kann die Stanzstempelaufnahme beispielsweise mit einem Rastkörper versehen sein, welcher eine Vorarretierung des Stanzstempels in der Betriebsposition bewirkt und anschließend eine einfache Montage des Abstreifers ermöglicht.To secure the position of the punch in the operating position in the punch holder, transversely to the machining direction, the stripper that can be attached to the punching device is used, which also allows the piston unit to be shifted in the longitudinal axis direction and thus the punch relative to the stripper. To facilitate the assembly of the stripper, the punch receptacle can be provided, for example, with a latching body which pre-locks the punch in the operating position causes and then enables easy assembly of the wiper.

Gemäß der Erfindung ist weiterhin vorgesehen, dass die Stanzstempelaufnahme im Bereich ihres geschlossenen Endes ein magnetisches Halteelement aufweist. Die Anordnung des magnetischen Halteelements stellt eine besonders einfache Ausgestaltung zur Vorarretierung des Stanzstempels in der Betriebsposition dar, in der der Stanzstempel an dem geschlossenen Ende der Längsnut anliegt. Das magnetische Halteelement ermöglicht dabei sowohl eine einfache Montage und Demontage und erlaubt eine besonders kostengünstige Herstellung des Stanzstempelträgers. Die Anzahl und Anordnung der Halteelemente kann dabei entsprechend der bestehenden Anforderungen frei gewählt werden.According to the invention it is further provided that the punch holder has a magnetic holding element in the area of its closed end. The arrangement of the magnetic holding element represents a particularly simple configuration for pre-locking the punch in the operating position in which the punch rests against the closed end of the longitudinal groove. The magnetic holding element enables both simple assembly and disassembly and allows particularly inexpensive production of the punch support. The number and arrangement of the holding elements can be freely selected according to the existing requirements.

Wie bereits vorstehend dargestellt dient der Abstreifer dazu, den auswechselbaren Stanzstempel quer zur Längsachse der Kolbeneinheit in der Betriebsposition an dem Stanzgerät festzulegen. Die Anordnung des Abstreifers an dem Stanzgerät kann dabei grundsätzlich in beliebiger Weise erfolgen. So kann dieser beispielsweise lediglich klemmend auf eine Aufnahme an dem Stanzgerät aufgeschoben werden, nachdem der Abstreifer während des Stanzvorganges im Wesentlichen unbelastet ist und daher keiner besonderen Lagesicherung bedarf. Nach einer besonders vorteilhaften Ausgestaltung der Erfindung ist jedoch vorgesehen, dass der Abstreifer zur verriegelbaren Anordnung in der Betriebsposition an dem Stanzgerät ausgebildet ist. Diese Ausgestaltung der Erfindung gewährleistet eine besonders zuverlässige Lagesicherung des Abstreifers und damit auch des auswechselbar anordbaren Stanzstempels. Der Stanzvorgang kann damit in besonders hoher Qualität und vielfachen Wiederholungen durchgeführt werden, da mit besonders hoher Zuverlässigkeit die Positionssicherung des Stanzstempels gewährleistet ist.As already shown above, the stripper serves to fix the exchangeable punch transversely to the longitudinal axis of the piston unit in the operating position on the punching device. The arrangement of the stripper on the punching device can in principle take place in any way. For example, it can only be pushed onto a receptacle on the punching device in a clamping manner after the stripper is essentially unloaded during the punching process and therefore does not require any special position securing. According to a particularly advantageous embodiment of the invention, however, it is provided that the stripper is designed for a lockable arrangement in the operating position on the punching device. This embodiment of the invention ensures a particularly reliable positional securing of the stripper and thus also of the exchangeable punch. The punching process can thus be carried out with particularly high quality and multiple repetitions, since the position of the punch is secured with particularly high reliability.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist ferner vorgesehen, dass der Abstreifer im Kontaktbereich mit dem Stanzstempel eine Beschichtung aufweist. Die Beschichtung, vorzugsweise eine gleitreduzierende Beschichtung, verringert die Reibung zwischen dem Abstreifer und dem Stanzstempel. Hierdurch wird ein Verschleiß minimiert sowie eine durch Reibung unter Umständen entstehende Geräuschbelastung wirksam vermieden.According to a further advantageous embodiment of the invention, it is also provided that the stripper has a coating in the contact area with the punch. The coating, preferably a slip-reducing coating, reduces the friction between the stripper and the punch. In this way, wear is minimized and noise pollution that may arise due to friction is effectively avoided.

Kennzeichnend für das hydraulische Stanzgerät mit einem hydraulisch angetriebenen Stanzstempelträger und einer an einen Stanzstempel angepassten Stanzmatrize ist, dass der Stanzstempelträger gemäß einem oder mehreren der Ansprüche 1 bis 3 ausgebildet ist. Das erfindungsgemäße Stanzgerät zeichnet sich dabei dadurch aus, dass ein besonders einfacher und schneller Wechsel des Stanzstempels erfolgen kann, ohne dass hier groß Umbauarbeiten an dem Stanzgerät vorgenommen werden müssen.A characteristic of the hydraulic punching device with a hydraulically driven punch carrier and a punching die adapted to a punching punch is that the punching punch carrier is designed according to one or more of claims 1 to 3. The punching device according to the invention is distinguished by the fact that the punching die can be changed particularly easily and quickly without having to undertake major modifications to the punching device.

Ein Ausführungsbeispiel der Erfindung wird nachstehend mit Bezug auf die Zeichnungen erläutert. In den Zeichnungen zeigen:

Fig. 1
eine perspektivische Ansicht auf einen Stanzstempelträger in einer Explosionsdarstellung;
Fig. 2a
eine Seitenansicht eines Stanzgeräts mit montiertem Stanzstempelträger;
Fig. 2b
eine Seitenansicht des Stanzgeräts von Fig. 1 mit demontiertem Abstreifer;
Fig. 2c
eine Seitenansicht des Stanzträgers von Fig. 1 mit demontiertem Stanzstempel;
Fig. 3a
eine Seitenansicht des Stanzgeräts von Fig. 1 mit zu montierendem Stanzstempel;
Fig. 3b
eine Seitenansicht des Stanzgeräts von Fig. 1 mit montiertem Stanzstempel und zu montierendem Abstreifer und
Fig. 3c
eine Seitenansicht des Stanzgeräts von Fig. 1 mit montiertem Stanzstempelträger.
An embodiment of the invention is explained below with reference to the drawings. In the drawings show:
Fig. 1
a perspective view of a punch carrier in an exploded view;
Fig. 2a
a side view of a punching device with mounted punch carrier;
Figure 2b
a side view of the punching device of FIG Fig. 1 with dismantled scraper;
Figure 2c
a side view of the punch support of Fig. 1 with dismantled punch;
Fig. 3a
a side view of the punching device of FIG Fig. 1 with punch to be mounted;
Figure 3b
a side view of the punching device of FIG Fig. 1 with mounted punch and stripper to be mounted and
Figure 3c
a side view of the punching device of FIG Fig. 1 with mounted punch carrier.

In Figur 1 ist in einer perspektivischen Ansicht eine Ausführungsform eines Stanzstempelträgers 1 mit einer Kolbeneinheit 2 und einem Abstreifer 6 dargestellt. Die Kolbeneinheit 2 ist in der Regel auswechselbar an einem in den Figuren 2a bis 2c und 3a bis 3c dargestellten Stanzgerät 8 in seiner Längsachsenrichtung verfahrbar angeordnet. Zur Aufnahme eines auswechselbaren Stanzstempels 4 an dem Stanzstempelträger 1 weist die Kolbeneinheit 2 eine Stanzstempelhalterung 3 mit einer Stanzstempelaufnahme 5 auf, die durch eine quer zur Längsachsenrichtung der Kolbeneinheit 2 verlaufende Längsnut gebildet ist und die einen C-förmigen Querschnitt aufweist.In Figure 1 an embodiment of a punch carrier 1 with a piston unit 2 and a stripper 6 is shown in a perspective view. The piston unit 2 is usually exchangeable on one in the Figures 2a to 2c and 3a to 3c shown punching device 8 arranged movable in its longitudinal axis direction. To accommodate an exchangeable punch 4 on the punch carrier 1, the piston unit 2 has a punch holder 3 with a punch holder 5 which is formed by a longitudinal groove running transversely to the longitudinal axis of the piston unit 2 and which has a C-shaped cross section.

Über ein im Bereich der Umfangsfläche der Kolbeneinheit 2 offenes Ende der Längsnut ist ein scheibenförmiger Grundträger 12 des Stanzstempels 4 bis an das geschlossene Ende der Längsnut hineinschiebbar. Der Durchmesser und die Dicke des Grundträgers 12 ist dabei an die Breite und die Höhe der Längsnut angepasst, so dass die C-förmigen Abschnitte eine Arretierung des Stanzstempels 4 in Längsachsenrichtung der Kolbeneinheit 2 gewährleisten.Via an end of the longitudinal groove that is open in the area of the circumferential surface of the piston unit 2, a disk-shaped base carrier 12 of the punch 4 can be pushed in as far as the closed end of the longitudinal groove. The diameter and the thickness of the base support 12 are adapted to the width and the height of the longitudinal groove, so that the C-shaped sections ensure that the punch 4 is locked in the direction of the longitudinal axis of the piston unit 2.

Ausgehend von dem Grundträger 12 erstreckt sich der Stanzstempel 4 mit einem gegenüber dem Grundträger 12 verjüngten Abschnitt zwischen den C-förmigen Abschnitten hindurch in Richtung auf den Abstreifer 6, welcher an dem Stanzgerät 8 arretierbar ist. Der Abstreifer 6 dient dabei zur Lagersicherung des Stanzstempels 4 in der Betriebsposition, in der der Stanzstempel 4 über den Grundträger 12 an dem geschlossenen Ende der Längsnut anliegt. Eine Durchtrittsöffnung 7 an dem Abstreifer 6 gewährleistet einen Durchtritt des Stanzstempels 4 bei einer Verlagerung der Kolbeneinheit 2 durch das Stanzgerät 8, so dass mit dem Stanzstempel 4 entsprechende Stanzvorgänge durchgeführt werden können.Starting from the base carrier 12, the punch 4 extends with a section tapered compared to the base carrier 12 between the C-shaped sections in the direction of the stripper 6, which can be locked on the punching device 8. The stripper 6 serves to secure the bearing of the punch 4 in the operating position in which the punch 4 rests against the closed end of the longitudinal groove via the base support 12. A passage opening 7 on the stripper 6 ensures a passage of the punch 4 when the piston unit 2 is displaced by the punch 8, so that corresponding punching operations can be carried out with the punch 4.

In den Figuren 2a bis 2c ist die einfache Demontage eines Stanzstempels 4 von dem Bügel 10 des Stanzgeräts 8 dargestellt. Ausgehend aus der in Figur 2a dargstellten montierten Lage des Stanzstempelträgers 1 mit daran installiertem Stanzstempel 4 wird zur Demontage der Abstreifer 6 von dem Stanzgerät 8 entfernt, so dass die Kolbeneinheit 2 zugänglich ist, welche durch die Antriebseinheit 11 des Stanzgeräts 8 in Längsachsenrichtung der Kolbeneinheit 2 in Richtung auf die Stanzmatrize 9 verstellbar ist. Nach der Entnahme des Abstreifers 6 ist dann - wie in Figur 2c dargestellt - eine Entnahme des Stanzstempels 4 möglich.In the Figures 2a to 2c the simple dismantling of a punch 4 from the bracket 10 of the punch 8 is shown. Starting from the in Figure 2a The illustrated mounted position of the punch carrier 1 with the punch 4 installed on it is removed from the punching device 8 for dismantling the stripper 6 so that the piston unit 2 is accessible, which is accessible by the drive unit 11 of the punching device 8 in the direction of the longitudinal axis of the piston unit 2 in the direction of the punching die 9 is adjustable. After removal of the scraper 6 is then - as in Figure 2c shown - a removal of the punch 4 is possible.

Nach der Entnahme des Stanzstempels 4 kann dann, wie in den Figuren 3a bis 3c dargestellt, ein anderer Stanzstempel 4 in die Stanzstempelaufnahme 5 der Stanzstempelhalterung 3 eingesetzt werden und hiernach durch Aufsetzen des Abstreifers 6 in der Betriebsposition fixiert werden. In der in Figur 3c dargestellten Betriebsposition kann dann erneut ein Stanzvorgang durchgeführt werden, wobei hier nicht dargestellte Bleche zwischen dem Abstreifer 6 und der Stanzmatrize 9 anzuordnen sind. Durch Betätigen der Antriebseinheit 11 des Stanzgeräts 8 wird der Stanzstempel 4 durch die Durchtrittsöffnung 7 an dem Abstreifer 6 hindurch in Richtung auf die Stanzmatrize 9 bewegt, wobei dazwischen befindliche, hier nicht dargestellte Bleche entsprechend dem Durchmesser des Stanzstempels 4 gelocht werden.After removal of the punch 4 can then, as in the Figures 3a to 3c shown, another punch 4 can be inserted into the punch receptacle 5 of the punch holder 3 and then fixed in the operating position by placing the stripper 6 on. In the in Figure 3c A punching process can then be carried out again, in which case sheets (not shown here) are to be arranged between the stripper 6 and the punching die 9. By actuating the drive unit 11 of the punching device 8, the punch 4 is moved through the passage opening 7 on the stripper 6 in the direction of the punching die 9, with metal sheets not shown in between being punched according to the diameter of the punch 4.

BezugszeichenlisteList of reference symbols

11
StanzstempelträgerPunch carrier
22
KolbeneinheitPiston unit
33
StanzstempelhalterungPunch holder
44th
StanzstempelPunch
55
StanzstempelaufnahmePunch holder
66th
AbstreiferScraper
77th
DurchtrittsöffnungPassage opening
88th
StanzgerätPunching device
99
StanzmatrizePunching die
1010
Bügelhanger
1111
AntriebseinheitDrive unit
1212
GrundträgerBasic carrier

Claims (4)

  1. A punch carrier for a punch machine comprising:
    - a piston unit that is exchangeably arranged on the punch machine, and
    - a punch holder arranged on the piston unit for exchangeably arranging a punch,
    wherein the punch holder (3) has a punch seat (5) transverse to the direction of the longitudinal axis of the piston unit, and a stripper (6) that can be attached to the punch machine (8) and has a passage (7) for the punch (4), wherein the stripper (6) is designed such that it secures the punch (4) in an operating position in the punch seat (5), and
    - the punch seat (5) is formed by an elongated slot (5) with a C-shaped cross-section that is closed at one end and open at the other end, characterized in that
    - the punch seat (5) has a magnetic retaining element in the region of its closed end.
  2. The punch carrier according to the preceding claim, characterized in that the stripper (6) is designed such that it can be locked in the operating position on the punch machine (8).
  3. The punch carrier according to one or more of the preceding claims, characterized in that the stripper (6) has an anti-friction coating in the area of contact with the punch (4).
  4. A hydraulic punch machine comprising:
    - a hydraulically driven punch carrier, and
    - a die adapted to a punch,
    characterized in that the punch carrier (1) is designed according to one or more of claims 1 to 3.
EP16190450.3A 2015-09-30 2016-09-23 Hydraulic punch machine and punch carrier for punch machine Active EP3150297B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015116562.7A DE102015116562A1 (en) 2015-09-30 2015-09-30 Hydraulic punching device as well as punching punch carrier for punching device

Publications (2)

Publication Number Publication Date
EP3150297A1 EP3150297A1 (en) 2017-04-05
EP3150297B1 true EP3150297B1 (en) 2020-11-04

Family

ID=57121025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16190450.3A Active EP3150297B1 (en) 2015-09-30 2016-09-23 Hydraulic punch machine and punch carrier for punch machine

Country Status (3)

Country Link
US (1) US10052780B2 (en)
EP (1) EP3150297B1 (en)
DE (1) DE102015116562A1 (en)

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
DE102017123723B4 (en) 2017-10-12 2023-03-16 Tkr Spezialwerkzeuge Gmbh Hydraulic punching device
WO2021112787A1 (en) * 2019-12-03 2021-06-10 Takimform Metal Muhendislik Sanayi Ve Ticaret Limited Sirketi A puncher mechanism
FR3112092B1 (en) * 2020-07-03 2023-01-13 Gys TOOL FOR PUNCHING A SHEET OR A MULTI-LAYER ASSEMBLY OF SHEET AND CORRESPONDING PUNCHING METHOD.

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Also Published As

Publication number Publication date
EP3150297A1 (en) 2017-04-05
US10052780B2 (en) 2018-08-21
DE102015116562A1 (en) 2017-03-30
US20170087736A1 (en) 2017-03-30

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