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EP3150297A1 - Hydraulic punching device and punch support for punching device - Google Patents

Hydraulic punching device and punch support for punching device Download PDF

Info

Publication number
EP3150297A1
EP3150297A1 EP16190450.3A EP16190450A EP3150297A1 EP 3150297 A1 EP3150297 A1 EP 3150297A1 EP 16190450 A EP16190450 A EP 16190450A EP 3150297 A1 EP3150297 A1 EP 3150297A1
Authority
EP
European Patent Office
Prior art keywords
punch
punching device
punching
scraper
piston unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16190450.3A
Other languages
German (de)
French (fr)
Other versions
EP3150297B1 (en
Inventor
Karl Buchholz
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.)
TKR Spezialwerkzeuge GmbH
Original Assignee
TKR Spezialwerkzeuge GmbH
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 TKR Spezialwerkzeuge GmbH filed Critical TKR Spezialwerkzeuge GmbH
Publication of EP3150297A1 publication Critical patent/EP3150297A1/en
Application granted granted Critical
Publication of EP3150297B1 publication Critical patent/EP3150297B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

  • Punching devices of the type mentioned are used to bring in a punching operation holes in one or more sheets, which then subsequently for receiving suitable fasteners, such as. Blind rivets, blind rivet and / or blind rivet nuts serve.
  • the sheets to be processed are arranged in the punching device between the punch and a punching die, so that subsequently the hole can be punched into the sheets, for which purpose the punch is adjusted in the direction of the punching die.
  • the size of the holes to be produced is determined by the diameter of the punching portion of the punch.
  • the punches are detachably mounted on a punch holder of a piston unit of the punching device, wherein the piston unit is movable in its longitudinal axis direction by a drive unit of the punching device and drives through the punch through the sheets to be processed.
  • the change of the punch is currently posing as extremely time-consuming, especially since it must be ensured that all forces acting on the punch during the punching process forces are reliably transmitted. An exact alignment of the punch is therefore also to achieve a perfect punching result of particular importance.
  • the invention has for its object to provide a punching device and a punch carrier for a punching device, which in a reliable way a simple Change of punch to adapt to changing machining requirements allowed.
  • the invention solves the problem by a stamping punch carrier with the features of claim 1 and a punching device with the features of claim 6.
  • Advantageous development of the punch carrier are given in the dependent claims.
  • Characteristic of the punch carrier according to the invention is that the punch holder, which is arranged on the piston unit and serves to position the punch on the piston unit, a transversely to the longitudinal axis of the piston unit and thus transversely to the direction of movement of the punch during the punching process extending punch recording has, in which the Punch can be inserted.
  • a scraper of the stamping die holder which is provided with a passage opening for a punch, serves to fix the stamping punch arranged in the stamping punch receptacle in an operating position, the stripper being attachable to the stamping device for this purpose.
  • the punch recording allows a simple and quick change of the punch, which can be removed in the disassembled state of the scraper in a simple manner from the transverse to the longitudinal axis direction of the piston punch punch recording and used again.
  • Only the scraper which can be fastened to the punching device, and which also permits a movement of the piston unit relative to the scraper, ensures a proper seating of the punching punch in the punching punch receptacle in an operating position in which punching operations can be carried out with the punching device.
  • the scraper prevents slipping or sliding out of the punch from the punch recording.
  • the puncture punch seat extending transversely to the longitudinal axis direction ensures on the one hand that the punch can be assembled and disassembled in a simple manner.
  • the orientation of the stamping die receptacle ensures that forces occurring during the punching process in the longitudinal axis direction of the piston unit are reliably transmitted from the piston unit bearing on the punch to the punch, so that the stamping operations are carried out in the desired manner can be performed.
  • the orientation and shape of the punching post recording is basically freely selectable. Thus, for example, this can extend arcuately transversely to the longitudinal axis direction of the piston unit.
  • the punch seat receptacle is formed by a closed at one end and the other end open, in cross-section C-shaped longitudinal groove.
  • the cross-sectionally C-shaped longitudinal groove extends from a preferably arranged at the edge of the piston unit opening up to its closed end.
  • the longitudinal groove is preferably designed such that the punch is arranged in a system at the closed end in a preferably central operating position on the piston unit.
  • the cross-sectionally C-shaped course of the longitudinal groove makes it possible to fix the punch in a simple manner in the longitudinal axis direction of the piston unit at this.
  • the punch is then supported with its underside on the piston unit.
  • the C-shaped portions of the longitudinal groove secure the position of the punch in the punch seat, the punch for this purpose has a correspondingly shaped base body from which the punch extends through the area between the C-shaped sections of the longitudinal groove.
  • the longitudinal groove allows easy insertion of the main body of the punch from the open end to the closed end. Furthermore, a rapid adaptation of the punching device can take place, for which purpose different punches with identical base bodies are used, the diameter of which is adapted to the width of the longitudinal groove, but which have punched sections with different diameters.
  • the punch seat receiving for example, be provided with a locking body, which is a Vorarret mich the punch in the operating position causes and then allows easy mounting of the scraper.
  • the punch seat receiving has a magnetic holding element in the region of its closed end.
  • the arrangement of the magnetic holding element is a particularly simple embodiment for Vorarrettechnik of the punch in the operating position, in which the punch rests against the closed end of the longitudinal groove.
  • the magnetic holding element allows both a simple assembly and disassembly and allows a particularly cost-effective production of the punch carrier.
  • the number and arrangement of the holding elements can be chosen freely according to the existing requirements.
  • the scraper serves to fix the replaceable punches transversely to the longitudinal axis of the piston unit in the operating position on the punching device.
  • the arrangement of the scraper on the punching device can basically be done in any way. So this example, it can be slid only by clamping on a recording on the punching device, after the scraper is substantially unloaded during the punching process and therefore requires no special position assurance.
  • the scraper is designed for locking arrangement in the operating position on the punching device. This embodiment of the invention ensures a particularly reliable positional securing of the scraper and thus also of the exchangeable punch punch.
  • the punching process can thus be carried out in a particularly high quality and multiple repetitions, since with particularly high reliability, the position assurance of the punch is guaranteed.
  • the scraper has a coating in the contact area with the punch.
  • the coating preferably a slip reducing coating, reduces the friction between the wiper and the punch. As a result, wear is minimized and effectively avoided by friction under certain circumstances noise pollution.
  • Characteristic of the hydraulic punching device with a hydraulically driven punch carrier and a punch die adapted to a punch is that the punch carrier is formed according to one or more of claims 1 to 5.
  • the punching device according to the invention is characterized in that a particularly simple and quick change of the punch can take place without having to make major alterations to the punching device here.
  • FIG. 1 is an embodiment of a punching stamp carrier 1 with a piston unit 2 and a scraper 6 is shown in a perspective view.
  • the piston unit 2 is usually replaceable at one in the FIGS. 2a to 2c and 3a to 3c Punching device 8 shown arranged movable in its longitudinal axis direction.
  • the piston unit 2 For receiving a replaceable punch 4 on the punch carrier 1, the piston unit 2 has a punch holder 3 with a punch recording 5, which is formed by a transverse to the longitudinal axis of the piston unit 2 longitudinal groove and having a C-shaped cross-section.
  • a disk-shaped base support 12 of the punch 4 hineinschiebbar to the closed end of the longitudinal groove.
  • the diameter and the thickness of the base support 12 is adapted to the width and the height of the longitudinal groove, so that the C-shaped sections ensure a locking of the punch 4 in the longitudinal axis direction of the piston unit 2.
  • the punch 4 extends with a relative to the base support 12 tapered portion between the C-shaped sections through in the direction of the scraper 6, which is lockable to the punching device 8.
  • the scraper 6 serves to secure the bearing of the punch 4 in the operating position in which the punch 4 rests on the base support 12 at the closed end of the longitudinal groove.
  • a passage opening 7 on the scraper 6 ensures a passage of the punch 4 at a displacement of the piston unit 2 by the punching device 8, so that 4 corresponding punching operations can be performed with the punch.
  • FIGS. 2a to 2c the simple disassembly of a punch 4 is shown by the bracket 10 of the punching device 8.
  • the bracket 10 of the punching device 8 Starting from the in FIG. 2a darg Horen mounted position of the punch carrier 1 with it installed punch 4 is removed for disassembly of the scraper 6 of the punching device 8, so that the piston unit 2 is accessible, which by the drive unit 11 of the punching device 8 in the longitudinal axis direction 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 possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

Die Erfindung betrifft einen Stanzstempelträger für ein Stanzgerät, mit - einer am Stanzgerät auswechselbar anordbaren Kolbeneinheit und - einer an der Kolbeneinheit angeordneten Stanzstempelhalterung zur auswechselbaren Anordnung eines Stanzstempels. Ferner betrifft die Erfindung ein hydraulisches Stanzgerät, mit - einem hydraulisch angetriebenen Stanzstempelträger und - einer an einen Stanzstempel angepassten Stanzmatrize. Um 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, ist vorgesehen, dass die Stanzstempelhalterung eine quer zur Längsachsenrichtung der Kolbeneinheit verlaufende Stanzstempelaufnahme und einen an dem Stanzgerät befestigbaren Abstreifer mit einer Durchtrittsöffnung für den Stanzstempel aufweist, wobei der Abstreifer derart ausgebildet ist, dass er den Stanzstempel in einer Betriebsposition in der Stanzstempelaufnahme festlegt. Ferner ist vorgesehen, dass der Stanzstempelträger gemäß einem oder mehreren der Ansprüche 1 bis 5 ausgebildet ist.The invention relates to a punch carrier for a punching device, with - A replaceable on the punching device can be arranged piston unit and - A arranged on the piston unit punch holder for the interchangeable arrangement of a punch. Furthermore, the invention relates to a hydraulic punching device, with - A hydraulically driven punch carrier and - A stamping die adapted to a punch. In order to provide a punching device and a punch carrier for a punching device, which reliably allows a simple change of the punch to adapt to changing processing requirements, it is provided that the punch holder has a transverse to the longitudinal axis of the piston unit punch punch receiving and attachable to the punching device scraper with a passage opening for the punch, wherein the scraper is designed such that it determines the punch in an operating position in the punch recording. It is further provided that the punch carrier is designed according to one or more of claims 1 to 5.

Description

Die Erfindung betrifft ein hydraulisches Stanzgerät sowie einen Stanzstempelträger für ein Stanzgerät, mit

  • einer am Stanzgerät auswechselbar anordbaren Kolbeneinheit und
  • einer an der Kolbeneinheit angeordneten Stanzstempelhalterung zur auswechselbaren Anordnung eines Stanzstempels.
The invention relates to a hydraulic punching device and a punch carrier for a punching device, with
  • a piston unit replaceable on the punching unit and
  • an arranged on the piston unit punch holder for the interchangeable arrangement of a punch.

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 are used to bring in a punching operation holes in one or more sheets, which then subsequently for receiving suitable fasteners, such as. Blind rivets, blind rivet and / or blind rivet nuts serve.

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 subsequently the hole can be punched into the sheets, for which purpose the punch is adjusted in the direction of the punching die. The size of the holes to be produced is determined by the diameter of the punching portion of the punch. To produce different holes, the punches are detachably mounted on a punch holder of a piston unit of the punching device, wherein the piston unit is movable in its longitudinal axis direction by a drive unit of the punching device and drives through the punch through the sheets to be processed. The change of the punch is currently posing as extremely time-consuming, especially since it must be ensured that all forces acting on the punch during the punching process forces are reliably transmitted. An exact alignment of the punch is therefore also to achieve a perfect punching result of particular importance.

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 has for its object to provide a punching device and a punch carrier for a punching device, which in a reliable way a simple Change of punch to adapt to changing machining requirements allowed.

Die Erfindung löst die Aufgabe durch einen Stanzstempelträger mit den Merkmalen des Anspruchs 1 sowie ein Stanzgerät mit den Merkmalen des Anspruchs 6. Vorteilhafte Weiterbildung des Stanzstempelträgers sind in den abhängigen Ansprüchen angegeben.The invention solves the problem by a stamping punch carrier with the features of claim 1 and a punching device with the features of claim 6. Advantageous development of the punch carrier are given in the dependent claims.

Kennzeichnend für den erfindungsgemäßen Stanzstempelträger ist, dass die Stanzstempelhalterung, welche an der Kolbeneinheit angeordnet ist und zur Positionierung des Stanzstempels an der Kolbeneinheit dient, eine quer zur Längsachsenrichtung der Kolbeneinheit und damit quer zur Bewegungsrichtung des Stanzstempels während des Stanzvorgangs verlaufende Stanzstempelaufnahme aufweist, in welche der Stanzstempel eingeschoben werden kann. Ein mit einer Durchtrittsöffnung für einen Stanzstempel versehener Abstreifer der Stanzstempelhalterung dient dabei dazu, den in der Stanzstempelaufnahme angeordneten Stanzstempel in einer Betriebsposition festzulegen, wobei der Abstreifer hierzu and dem Stanzgerät befestigbar ist.Characteristic of the punch carrier according to the invention is that the punch holder, which is arranged on the piston unit and serves to position the punch on the piston unit, a transversely to the longitudinal axis of the piston unit and thus transversely to the direction of movement of the punch during the punching process extending punch recording has, in which the Punch can be inserted. A scraper of the stamping die holder, which is provided with a passage opening for a punch, serves to fix the stamping punch arranged in the stamping punch receptacle in an operating position, the stripper being attachable to the stamping device for this purpose.

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 recording allows a simple and quick change of the punch, which can be removed in the disassembled state of the scraper in a simple manner from the transverse to the longitudinal axis direction of the piston punch punch recording and used again. Only the scraper, which can be fastened to the punching device, and which also permits a movement of the piston unit relative to the scraper, ensures a proper seating of the punching punch in the punching punch receptacle in an operating position in which punching operations can be carried out with the punching device. The scraper prevents slipping or sliding out of the punch from the punch recording.

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.On the one hand, the puncture punch seat extending transversely to the longitudinal axis direction ensures on the one hand that the punch can be assembled and disassembled in a simple manner. At the same time, the orientation of the stamping die receptacle ensures that forces occurring during the punching process in the longitudinal axis direction of the piston unit are reliably transmitted from the piston unit bearing on the punch to the punch, so that the stamping operations are carried out in the desired manner can be performed.

Die Ausrichtung und Form der Stanzstempelaufnahme ist grundsätzlich frei wählbar. So kann diese beispielsweise quer zur Längsachsenrichtung der Kolbeneinheit bogenförmig verlaufen. Nach einer besonders vorteilhaften Ausgestaltung der Erfindung ist jedoch vorgesehen, dass die Stanzstempelaufnahme durch eine einenends verschlossene und anderenends offene, im Querschnitt C-förmige Längsnut gebildet ist. Gemäß dieser Ausgestaltung 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.The orientation and shape of the punching post recording is basically freely selectable. Thus, for example, this can extend arcuately transversely to the longitudinal axis direction of the piston unit. According to a particularly advantageous embodiment of the invention, however, it is provided that the punch seat receptacle is formed by a closed at one end and the other end open, in cross-section C-shaped longitudinal groove. According to this embodiment of the invention, the cross-sectionally C-shaped longitudinal groove extends from a preferably arranged at the edge of the piston unit opening up to its closed end. The longitudinal groove is preferably designed such that the punch is arranged in a system at the closed end in a preferably central operating position on the piston unit.

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 cross-sectionally C-shaped course of the longitudinal groove makes it possible to fix the punch in a simple manner in the longitudinal axis direction of the piston unit at this. During the punching process, the punch is then supported with its underside on the piston unit. In the opposite direction, the C-shaped portions of the longitudinal groove secure the position of the punch in the punch seat, the punch for this purpose has a correspondingly shaped base body from which the punch extends through the area between the C-shaped sections of the longitudinal groove. The longitudinal groove allows easy insertion of the main body of the punch from the open end to the closed end. Furthermore, a rapid adaptation of the punching device can take place, for which purpose different punches with identical base bodies are used, 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 recording, transversely to the processing direction, which is fastened to the punching device scraper, which also allows a displacement of the piston unit in the longitudinal axis direction and thus of the punch against the scraper. In order to facilitate the assembly of the scraper, the punch seat receiving, for example, be provided with a locking body, which is a Vorarretierung the punch in the operating position causes and then allows easy mounting of the scraper.

Nach einer besonders vorteilhaften Ausgestaltung der Erfindung ist dabei 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 a particularly advantageous embodiment of the invention, it is provided that the punch seat receiving has a magnetic holding element in the region of its closed end. The arrangement of the magnetic holding element is a particularly simple embodiment for Vorarretierung of the punch in the operating position, in which the punch rests against the closed end of the longitudinal groove. The magnetic holding element allows both a simple assembly and disassembly and allows a particularly cost-effective production of the punch carrier. The number and arrangement of the holding elements can be chosen freely 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 scraper serves to fix the replaceable punches transversely to the longitudinal axis of the piston unit in the operating position on the punching device. The arrangement of the scraper on the punching device can basically be done in any way. So this example, it can be slid only by clamping on a recording on the punching device, after the scraper is substantially unloaded during the punching process and therefore requires no special position assurance. According to a particularly advantageous embodiment of the invention, however, it is provided that the scraper is designed for locking arrangement in the operating position on the punching device. This embodiment of the invention ensures a particularly reliable positional securing of the scraper and thus also of the exchangeable punch punch. The punching process can thus be carried out in a particularly high quality and multiple repetitions, since with particularly high reliability, the position assurance of the punch is guaranteed.

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 further provided that the scraper has a coating in the contact area with the punch. The coating, preferably a slip reducing coating, reduces the friction between the wiper and the punch. As a result, wear is minimized and effectively avoided by friction under certain circumstances noise pollution.

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 5 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.Characteristic of the hydraulic punching device with a hydraulically driven punch carrier and a punch die adapted to a punch is that the punch carrier is formed according to one or more of claims 1 to 5. The punching device according to the invention is characterized in that a particularly simple and quick change of the punch can take place without having to make major alterations to the punching device here.

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 will be 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;
Fig. 2b
a side view of the punching device of Fig. 1 with dismantled scraper;
Fig. 2c
a side view of the punch carrier of Fig. 1 with dismantled punch;
Fig. 3a
a side view of the punching device of Fig. 1 with punch to be mounted;
Fig. 3b
a side view of the punching device of Fig. 1 with mounted punch and to be mounted scraper and
Fig. 3c
a side view of the punching device of Fig. 1 with mounted punching post 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 FIG. 1 is an embodiment of a punching stamp carrier 1 with a piston unit 2 and a scraper 6 is shown in a perspective view. The piston unit 2 is usually replaceable at one in the FIGS. 2a to 2c and 3a to 3c Punching device 8 shown arranged movable in its longitudinal axis direction. For receiving a replaceable punch 4 on the punch carrier 1, the piston unit 2 has a punch holder 3 with a punch recording 5, which is formed by a transverse to the longitudinal axis of the piston unit 2 longitudinal groove and having 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.About a in the region of the peripheral surface of the piston unit 2 open end of the longitudinal groove is a disk-shaped base support 12 of the punch 4 hineinschiebbar to the closed end of the longitudinal groove. The diameter and the thickness of the base support 12 is adapted to the width and the height of the longitudinal groove, so that the C-shaped sections ensure a locking of the punch 4 in the longitudinal axis direction 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 support 12, the punch 4 extends with a relative to the base support 12 tapered portion between the C-shaped sections through in the direction of the scraper 6, which is lockable to the punching device 8. The scraper 6 serves to secure the bearing of the punch 4 in the operating position in which the punch 4 rests on the base support 12 at the closed end of the longitudinal groove. A passage opening 7 on the scraper 6 ensures a passage of the punch 4 at a displacement of the piston unit 2 by the punching device 8, so that 4 corresponding punching operations can be performed with the punch.

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 FIGS. 2a to 2c the simple disassembly of a punch 4 is shown by the bracket 10 of the punching device 8. Starting from the in FIG. 2a dargstellten mounted position of the punch carrier 1 with it installed punch 4 is removed for disassembly of the scraper 6 of the punching device 8, so that the piston unit 2 is accessible, which by the drive unit 11 of the punching device 8 in the longitudinal axis direction 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 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 FIGS. 3a to 3c shown, another punch 4 are inserted into the punch recording 5 of the punch holder 3 and are fixed thereafter by placing the scraper 6 in the operating position. In the in Figure 3c shown operating position can then be performed again a punching process, which is not shown here plates between the scraper 6 and the punching die 9 are to be arranged. By pressing the drive unit 11 of the punching device 8, the punch 4 is moved through the passage opening 7 on the scraper 6 in the direction of the punching die 9, wherein intervening located, not shown here sheets are punched according to the diameter of the punch 4.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
StanzstempelträgerPunch carrier
22
Kolbeneinheitpiston unit
33
StanzstempelhalterungPunch holder
44
Stanzstempelpunch
55
StanzstempelaufnahmePunch retainer
66
Abstreiferscraper
77
DurchtrittsöffnungThrough opening
88th
Stanzgerätpunch
99
Stanzmatrizepunch die
1010
Bügelhanger
1111
Antriebseinheitdrive unit
1212
Grundträgerbase support

Claims (6)

Stanzstempelträger für ein Stanzgerät, mit - einer am Stanzgerät auswechselbar anordbaren Kolbeneinheit und - einer an der Kolbeneinheit angeordneten Stanzstempelhalterung zur auswechselbaren Anordnung eines Stanzstempels,
dadurch gekennzeichnet, dass die Stanzstempelhalterung (3) eine quer zur Längsachsenrichtung der Kolbeneinheit verlaufende Stanzstempelaufnahme (5) und einen an dem Stanzgerät (8) befestigbaren Abstreifer (6) mit einer Durchtrittsöffnung (7) für den Stanzstempel (4) aufweist, wobei der Abstreifer (6) derart ausgebildet ist, dass er den Stanzstempel (4) in einer Betriebsposition in der Stanzstempelaufnahme (5) festlegt. Punch holder for a punching device, with - A replaceable on the punching device can be arranged piston unit and a stamping die holder arranged on the piston unit for the interchangeable arrangement of a stamping punch,
characterized in that the punch holder (3) has a transverse to the longitudinal axis of the piston unit punch punch receiving (5) and a punching device (8) attachable scraper (6) having a passage opening (7) for the punch (4), wherein the scraper (6) is designed such that it determines the punch (4) in an operating position in the punch recording (5). Stanzstempelträger nach Anspruch 1, dadurch gekennzeichnet, dass die Stanzstempelaufnahme (5) durch eine einenends verschlossene und anderenends offene, im Querschnitt C-förmige Längsnut (5) gebildet ist.Punching die carrier according to claim 1, characterized in that the punching punch holder (5) is formed by a longitudinal groove (5) which is closed at one end and open at the other end, having a C-shaped cross-section. Stanzstempelträger nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Stanzstempelaufnahme (5) im Bereich ihres geschlossenen Endes ein magnetisches Halteelement aufweist.Punching stamp carrier according to claim 1 or 2, characterized in that the punching stamp receptacle (5) has a magnetic holding element in the region of its closed end. Stanzstempelträger nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Abstreifer (6) derart ausgebildet ist, dass er in der Betriebsposition an dem Stanzgerät (8) verriegelbar ist.Punch holder according to one or more of the preceding claims, characterized in that the scraper (6) is designed such that it can be locked in the operating position on the punching device (8). Stanzstempelträger nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Abstreifer (6) im Kontaktbereich mit dem Stanzstempel (4) eine Gleitbeschichtung aufweist.Punch holder according to one or more of the preceding claims, characterized in that the scraper (6) has a sliding coating in the area of contact with the punch (4). Hydraulisches Stanzgerät, mit - einem hydraulisch angetriebenen Stanzstempelträger und - einer an einen Stanzstempel angepassten Stanzmatrize,
dadurch gekennzeichnet, dass der Stanzstempelträger (1) gemäß einem oder mehreren der Ansprüche 1 bis 5 ausgebildet ist. Hydraulic punching unit, with - A hydraulically driven punch carrier and a stamping die adapted to a punch,
characterized in that the punching stamp carrier (1) according to one or more of claims 1 to 5 is formed.
EP16190450.3A 2015-09-30 2016-09-23 Hydraulic punch machine and punch carrier for punch machine Active EP3150297B1 (en)

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EP3150297B1 (en) 2020-11-04
US20170087736A1 (en) 2017-03-30
US10052780B2 (en) 2018-08-21
DE102015116562A1 (en) 2017-03-30

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