EP0266624B1 - Upper tool holder for a punch or the like - Google Patents

Upper tool holder for a punch or the like Download PDF

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Publication number
EP0266624B1
EP0266624B1 EP87115367A EP87115367A EP0266624B1 EP 0266624 B1 EP0266624 B1 EP 0266624B1 EP 87115367 A EP87115367 A EP 87115367A EP 87115367 A EP87115367 A EP 87115367A EP 0266624 B1 EP0266624 B1 EP 0266624B1
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EP
European Patent Office
Prior art keywords
punching
tool
support body
seating
guides
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.)
Expired - Lifetime
Application number
EP87115367A
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German (de)
French (fr)
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EP0266624A3 (en
EP0266624A2 (en
Inventor
Karl-Heinz Schulte
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Muhr und Bender KG
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Muhr und Bender KG
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Application filed by Muhr und Bender KG filed Critical Muhr und Bender KG
Priority to AT87115367T priority Critical patent/ATE102096T1/en
Publication of EP0266624A2 publication Critical patent/EP0266624A2/en
Publication of EP0266624A3 publication Critical patent/EP0266624A3/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/34Perforating tools; Die holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/04Movable or exchangeable mountings for tools

Definitions

  • the invention relates to an upper tool carrier for a punch or the like. According to the preamble of claim 1.
  • the following explanations apply not only to upper tool carriers of machine tools designed as punching dies, but also, for example, when two or more latching tools are arranged next to one another in the upper tool carrier.
  • the teaching of the invention is therefore not only limited to a punch and punching tools, but can also be applied to all machine tools in which comparable problems occur.
  • the teaching of the invention is explained here and below using the preferred exemplary embodiment of an upper tool carrier for a punch in order to facilitate understanding of the teaching.
  • the ends of the punching tools are provided with hammer-head-like extensions and the receptacle and the closure cap are provided with support flanges corresponding to the hammer-head-like extensions, so that the punching tools cannot slide down out of the tool guides.
  • the closure cap is pivoted on the carrier body or on the receptacle via a pivot axis and by means of a locking device, which is arranged on the opposite transverse side, lockable with the support body.
  • the locking device consists of a locking bolt pivotally articulated on the receptacle in the horizontal plane and a locking receptacle provided on the closure cap, which is open on one side, wherein the locking bolt can be pivoted into the locking receptacle and can be tightened by means of a clamping nut.
  • receiving spaces for the upper ends of the punching tools are provided on the carrier body above the tool guides and below a force transmission surface, and these receiving spaces can be bridged by means of force transmission slides which can be displaced essentially perpendicular to the punching direction.
  • Each punching tool is assigned a lifting lever arranged on the carrier body, one end of which laterally grips the upper end of the associated punching tool from below, so that the upper end of the punching tool can be lifted into the receiving space by means of the lifting lever when the power transmission slide is retracted.
  • pneumatic drives or the like which are not to be explained in detail are provided.
  • the above-described upper tool carrier which forms the starting point for the teaching of the invention, can practically no longer be improved with regard to the quick interchangeability of the punching tools.
  • the half-shell design of the receptacle and closure cap to form the tool guides is problematic in practice. If the locking device is too tight, it may happen that the punching tools are clamped in the tool guides. The upper tool carrier is then inoperable. The result is sometimes damaged punching tools and possibly also damaged other machine parts.
  • a continuous mounting plate is provided for receiving the punching tools, in which the tool guides are located. These are vertical closed in a ring shape to the punching direction and the punching tools are pushed in or pulled out in the direction perpendicular to the mounting plate.
  • the mounting plate is pivotally articulated on the carrier body, the stamping tools are exchanged when the mounting plate is pivoted away from the carrier body. This makes it impossible to jam the punching tools.
  • the carrier body is otherwise stationary and the receiving spaces are integrated in the tool guides by the tool guides being particularly elongated.
  • the upper ends of the punching tools are expanded like a hammer head and rest on helical compression springs, which in turn rest on the support flanges.
  • a power transmission slide is pushed between the drive head and the upper end of the punch, which presses the end of the punch down and thereby compresses the helical compression spring to the block length.
  • the clamping of the end of the punching tool between the power transmission slide and helical compression spring thus achieved during punching is not as exact as a clamping between the power transmission slide and the support flange, so that the punching tolerances are relatively large here.
  • the invention is based on the object of designing and developing the known upper tool carrier for a punch or the like without impairing the punching tolerances such that the guidance of the punching tools is unaffected by the attachment of the closure cap to the carrier body.
  • the tool guides are provided completely and closed in a receiving plate, the receiving plate being completely removable from the carrier body.
  • the punching tools can move into the tool guides practically as quickly in the punching direction or in the direction perpendicular to the mounting plate inserted or pulled out of them, as was previously possible with the insertion or removal from the half-shell receptacles. It is impossible to influence the punching tools in the tool guides because the tool guides are closed in a ring on all sides. The cross section of the tool guides in the plane of the mounting plate cannot be changed by the clamping force of the locking device. It is impossible to clamp the punching tools.
  • FIG. 1 shows, as a special, preferred exemplary embodiment of the invention, a machine tool in the form of a hole punch with only one indicated, C-shaped machine body 1, a lower tool carrier 2 formed or arranged on the machine body 1 with a lower tool 3 and an upper tool carrier 4 arranged or executed on the upper side of the machine body 1 with an upper tool, here a punching tool 5.
  • a drive head 6 for example in the form of a hydraulic cylinder-piston arrangement, is seated, with the aid of which the punch 5 can be lowered to the lower tool 3 during operation.
  • the upper tool carrier 4 shown here is characterized in that at least two, to be precise three punching tools 5 arranged next to one another are provided.
  • each punch 5 consists of a punch 7, a punch holder 8 and a union nut 9 connecting the punch 7 to the punch holder 8.
  • the three punch tools 5 are arranged as close as possible to one another, as shown in FIG.
  • Fig. 1 shows that the upper tool carrier 4 in the embodiment shown here initially has a carrier body 10 and a receptacle. 3 makes it clear that tool guides 12 arranged next to one another and extending in the punching direction are provided for each punch 5. 1, 2 and 3 make further clear in connection with this that the upper tool carrier 4 has a closure cap (11) fastened to the carrier body 10, in particular and in the exemplary embodiment shown here pivotable about a pivot axis 13 on the carrier body 10. 1 and 2 finally show in connection that the upper ends of the punching tools 5 in the tool guides 12, limited in one direction by support flanges 15, are guided in the punching direction, here vertically.
  • the support flanges 15 can be clearly seen in FIG. 3. They serve to prevent the punching tools 5 from falling out of the tool guides 12 downwards.
  • receiving spaces 17 for the upper ends of the punching tools 5 are also provided in the upper tool carrier 4 explained here on the carrier body 10 above the tool guides 12 and below a force transmission surface 16.
  • the receiving spaces 17 can be bridged with the aid of force transmission slides 18 or the like, which can be displaced essentially perpendicular to the punching direction, with the aid of actuators 19 designed here as pneumatic cylinder / piston units.
  • the force transmission surface 16 is arranged on the underside of the drive head 6 . This technique ensures that only the punching tool 5 is actively moved downward during the downward stroke of the force transmission surface 16, the force transmission slide 18 of which bridges the associated receiving space 17, while the other two punching tools 5 can move back into the respectively assigned receiving space 17.
  • FIG. 3 of the drawing is characterized in that the receptacle and the closure cap are integrated in a receptacle plate 14 which can be removed from the carrier body 10, that the tool guides 12 are closed in a ring in the plane perpendicular to the punching direction and that the punching tools 5 can be inserted or withdrawn from the tool guides 12 in the punching direction or in the direction perpendicular to the mounting plate 14 when the mounting plate 14 is removed, in particular pivoted, from the mounting body 10.
  • FIG. 3 further shows that, in adaptation to the previously described lifting lever 20 for lifting the ends of the punching tools 5, the receiving plate 14 on the side facing the carrier body 10 on each tool guide 12 has an engagement channel 21 which opens into the tool guide 12 under the support flange 15 has the lifting lever 20.
  • the lifting levers 20 can thus engage through the engagement channels 21 to below the edge of the punching tool 5, in particular the hammer head-like extension at the upper end. This insertion of the lifting lever 20 takes place when the mounting plate 14 is pivotably articulated when the mounting plate 14 is pivoted toward the carrier body 10.
  • the engagement channels 21 in the mounting plate 14 be on the articulation axis 13 for the pivotable articulation on the carrier body 10 facing sides are expanded from the tool guides 12 to the side facing the carrier body 10. This corresponds to the circular arc-shaped movement of the engagement channels 21 about the articulation axis 13.
  • the lateral minimum distance of the articulation axis 13 from the nearest tool guide 12 ensures that the tool guides 12 can be moved far enough away from the carrier body 10 even in the presence of protruding parts of the upper tool carrier 4 in order to completely clear the insertion path for the punching tools 5.
  • the receiving plate 14 can be locked on the carrier body 10 by means of a locking device 22 arranged on the side opposite the articulation axis 13.
  • a locking device 22 arranged on the side opposite the articulation axis 13.
  • 2 and 4 show clearly in the context that according to the preferred teaching of the invention, a second locking device 23 is provided near the articulation axis 13 and, according to the preferred teaching of the invention, below a part 24 located here and extending to the articulation axis 13 the receiving plate 14 is arranged.
  • the locking device 23, like the locking device 22, can be configured in the manner explained in the introduction, namely consist of a locking bolt 25 articulated on the support body 10 in the horizontal plane and a locking receptacle 26 provided on the mounting plate 14 and preferably open on the transverse side , wherein the locking bolt 25 can be pivoted into the locking receptacle 26 and locked by means of a clamping nut 27 or the like.
  • the clamping nut 27 or the like can be designed as a knee clamping lever, as can be seen particularly clearly in FIG. 4.
  • the arrangement of the second locking device 23 below the part 24 of the mounting plate 14 creates the possibility, after the locking bolt 25 has been pivoted away with the clamping nut 27 to the left in FIG. 2, to also open the mounting plate 14 to the left without colliding with the locking device 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Jigs For Machine Tools (AREA)
  • Passenger Equipment (AREA)

Abstract

The invention relates to an upper tool holder (4) for a punch or the like, with at least two punching tools (5) arranged next to one another, preferably each punching tool (5) consisting of a punching ram (7), a ram holder (8) and a coupling nut (9) connecting the punching ram (7) to the ram holder (8), with a carrier body (10), with a receiving plate (11), with tool guides (12) for each punching tool (5) which are arranged next to one another in the receiving plate (11) and which extend in the punching direction, and with an especially pivotable closing cover (14) fastened to the carrier body (10), especially articulated pivotably about an articulation axle (13) and removable in a plane perpendicular to the punching direction, the upper ends of the punching tools (5) being guided in the tool guides (12) so as to be displaceable in the punching direction and so as to be limited in one direction by bearing flanges (15). In this upper tool carrier (4), the guidance of the punching tools (5) is not influenced by the attachment of the closing cover (14) to the carrier body (10), specifically in that the closing cover (14) comprises the receiving plate (11), in that the tool guides (12) are closed annularly in the plane perpendicular to the punching direction, and in that, when the closing cover (14) is removed, especially swung away, from the carrier body (10), the punching tools (5) can be pushed into the tool guides (12) or pulled out of the tool guides (12) in the punching direction or in the direction perpendicular to the receiving plate (11). <IMAGE>

Description

Die Erfindung betrifft einen oberen Werkzeugträger für eine Stanze od. dgl. nach dem Oberbegriff von Anspruch 1.The invention relates to an upper tool carrier for a punch or the like. According to the preamble of claim 1.

Grundsätzlich gelten die nachfolgenden Erläuterungen nicht nur für obere Werkzeugträger von als Stanzen ausgeführten Werkzeugmaschinen, sondern beispielsweise auch dann, wenn im oberen Werkzeugträger zwei oder mehr Klinkwerkzeuge nebeneinander angeordnet sind. Die Lehre der Erfindung ist also nicht nur auf ein Stanze und Stanzwerkzeuge beschränkt, sondern auf alle Werkzeugmaschinen anwendbar, bei denen vergleichbare Probleme auftreten. Die Lehre der Erfindung wird hier und nachfolgend an dem bevorzugten Ausführungsbeispiel eines oberen Werkzeugträgers für eine Stanze erläutert, um das Verständnis der Lehre zu erleichtern.Basically, the following explanations apply not only to upper tool carriers of machine tools designed as punching dies, but also, for example, when two or more latching tools are arranged next to one another in the upper tool carrier. The teaching of the invention is therefore not only limited to a punch and punching tools, but can also be applied to all machine tools in which comparable problems occur. The teaching of the invention is explained here and below using the preferred exemplary embodiment of an upper tool carrier for a punch in order to facilitate understanding of the teaching.

Bei dem bekannten oberen Werkzeugträger für eine Stanze od. dgl., von dem die Erfindung ausgeht (EP - A - 01 80 146 & DE - A - 3 440 093), ist unter Berücksichtigung der beengten Platzverhältnisse bei mehreren nebeneinander angeordneten Stanzwerkzeugen ein schneller Wechsel eines Stanzwerkzeugs und/oder aller Stanzwerkzeuge dadurch möglich, daß die Aufnahme Teil des Trägerkörpers ist und die Werkzeugführungen zur Stirnseite des Trägerkörpers hin offen sind, so daß die oberen Enden der Stanzwerkzeuge im wesentlichen horizontal in die Werkzeugführungen einschiebbar bzw. einsetzbar sind. Eine Verschlußkappe verschließt alle Werkzeugführungen an den offenen Enden gemeinsam. Durch Ansetzen der Verschlußkappe und Verriegeln der Verschlußkappe mit der Aufnahme werden mit einem Griff die offenen Enden aller Werkzeugführungen in der Aufnahme verschlossen. Damit sind alle Stanzwerkzeuge gesichert. Im einzelnen sind dazu die Enden der Stanzwerkzeuge mit hammerkopfartigen Erweiterungen versehen und sind die Aufnahme und die Verschlußkappe mit zu den hammerkopfartigen Erweiterungen korrespondierenden Auflageflanschen versehen, so daß die Stanzwerkzeuge nicht nach unten aus den Werkzeugführungen herausrutschen können. Die Verschlußkappe ist am Trägerkörper bzw. an der Aufnahme über eine Anlenkachse schwenkbar angelenkt und mittels einer Verriegelungsvorrichtung, die auf der gegenüberliegenden Querseite angeordnet ist, mit dem Trägerkörper verriegelbar. Die Verriegelungsvorrichtung besteht dabei aus einem an der Aufnahme in horizontaler Ebene schwenkbar angelenkten Riegelbolzen und einer an der Verschlußkappe vorgesehenen, einseitig offenen Riegelaufnahme, wobei zur Verriegelung der Riegelbolzen in die Riegelaufnahme einschwenkbar und mittels einer Spannmutter festspannbar ist. Im übrigen sind am Trägerkörper oberhalb der Werkzeugführungen und unterhalb einer Kraftübertragungsfläche Aufnahmeräume für die oberen Enden der Stanzwerkzeuge vorgesehen und diese Aufnahmeräume sind mit Hilfe von im wesentlichen senkrecht zur Stanzrichtung verschiebbaren Kraftübertragungsschiebern überbrückbar. Jedem Stanzwerkzeug ist ein am Trägerkörper angeordneter Hubhebel zugeordnet, dessen eines Ende das obere Ende des zugeordneten Stanzwerkzeugs seitlich von unten her unterfaßt, so daß das obere Ende des Stanzwerkzeugs bei zurückgezogenem Kraftübertragungsschieber mittels des Hubhebels in den Aufnahmeraum anhebbar ist. Dazu sind im einzelnen nicht näher zu erläuternde Pneumatikantriebe od. dgl. vorgesehen.In the known upper tool carrier for a punch or the like, from which the invention is based (EP-A-01 80 146 & DE-A-3 440 093), taking into account the cramped space conditions with a plurality of punching tools arranged next to one another is a quick change a punching tool and / or all punching tools possible in that the receptacle is part of the carrier body and the tool guides are open towards the front side of the carrier body, so that the upper ends of the punching tools can be inserted or inserted essentially horizontally into the tool guides. A sealing cap closes all tool guides at the open ends together. By attaching the closure cap and locking the closure cap with the receptacle, the open ends of all tool guides in the receptacle are closed with one handle. All punching tools are now secured. In particular, the ends of the punching tools are provided with hammer-head-like extensions and the receptacle and the closure cap are provided with support flanges corresponding to the hammer-head-like extensions, so that the punching tools cannot slide down out of the tool guides. The closure cap is pivoted on the carrier body or on the receptacle via a pivot axis and by means of a locking device, which is arranged on the opposite transverse side, lockable with the support body. The locking device consists of a locking bolt pivotally articulated on the receptacle in the horizontal plane and a locking receptacle provided on the closure cap, which is open on one side, wherein the locking bolt can be pivoted into the locking receptacle and can be tightened by means of a clamping nut. Incidentally, receiving spaces for the upper ends of the punching tools are provided on the carrier body above the tool guides and below a force transmission surface, and these receiving spaces can be bridged by means of force transmission slides which can be displaced essentially perpendicular to the punching direction. Each punching tool is assigned a lifting lever arranged on the carrier body, one end of which laterally grips the upper end of the associated punching tool from below, so that the upper end of the punching tool can be lifted into the receiving space by means of the lifting lever when the power transmission slide is retracted. For this purpose, pneumatic drives or the like which are not to be explained in detail are provided.

Der zuvor erläuterte, den Ausgangspunkt für die Lehre der Erfindung bildende obere Werkzeugträger ist hinsichtlich der schnellen Auswechselbarkeit der Stanzwerkzeuge praktisch nicht mehr verbesserbar. Es hat sich aber gezeigt, daß die Halbschalen-Ausführung von Aufnahme und Verschlußkappe zur Bildung der Werkzeugführungen in der Praxis problematisch ist. Wird nämlich die Verriegelungsvorrichtung zu stark gespannt, so kann es geschehen, daß die Stanzwerkzeuge in den Werkzeugführungen festgeklemmt werden. Damit ist dann der obere Werkzeugträger funktionsunfähig. Das Ergebnis sind mitunter beschädigte Stanzwerkzeuge und ggf. auch beschädigte andere Maschinenteile.The above-described upper tool carrier, which forms the starting point for the teaching of the invention, can practically no longer be improved with regard to the quick interchangeability of the punching tools. However, it has been shown that the half-shell design of the receptacle and closure cap to form the tool guides is problematic in practice. If the locking device is too tight, it may happen that the punching tools are clamped in the tool guides. The upper tool carrier is then inoperable. The result is sometimes damaged punching tools and possibly also damaged other machine parts.

Bei einem weiteren, bekannten oberen Werkzeugträger (DE - A - 1 502 721) ist zur Aufnahme der Stanzwerkzeuge eine durchgehende Aufnahmeplatte vorgesehen, in der sich die Werkzeugführungen befinden. Diese sind senkrecht zur Stanzrichtung ringförmig geschlossen und die Stanzwerkzeuge werden in Richtung senkrecht zur Aufnahmeplatte eingeschoben bzw. herausgezogen. Die Aufnahmeplatte ist am Trägerkörper schwenkbar angelenkt, das Auswechseln der Stanzwerkzeuge erfolgt bei vom Trägerkörper abgeschwenkter Aufnahmeplatte. Dadurch ist ein Verklemmen der Stanzwerkzeuge unmöglich. Bei diesem Werkzeugträger ist im übrigen der Trägerkörper ortsfest und sind die Aufnahmeräume in die Werkzeugführungen integriert, indem die Werkzeugführungen besonders langgestreckt ausgeführt sind. Die oberen Enden der Stanzwerkzeuge sind hammerkopfartig erweitert und liegen auf Schraubendruckfedern auf, die ihrerseits auf den Auflageflanschen aufliegen. Beim Stanzen wird ein Kraftübertragungsschieber zwischen Antriebskopf und oberes Ende des Stanzwerkzeugs geschoben, der das Ende des Stanzwerkzeugs nach unten und dabei die Schraubendruckfeder auf die Blocklänge zusammendrückt. Die beim Stanzen so erzielte Einspannung des Endes des Stanzwerkzeugs zwischen Kraftübertragungsschieber und Schraubendruckfeder ist nicht so exakt wie eine Einspannung zwischen Kraftübertragungsschieber und Auflageflansch, so daß hier die Stanztoleranzen relativ groß sind.In a further known upper tool carrier (DE-A-1 502 721), a continuous mounting plate is provided for receiving the punching tools, in which the tool guides are located. These are vertical closed in a ring shape to the punching direction and the punching tools are pushed in or pulled out in the direction perpendicular to the mounting plate. The mounting plate is pivotally articulated on the carrier body, the stamping tools are exchanged when the mounting plate is pivoted away from the carrier body. This makes it impossible to jam the punching tools. In the case of this tool carrier, the carrier body is otherwise stationary and the receiving spaces are integrated in the tool guides by the tool guides being particularly elongated. The upper ends of the punching tools are expanded like a hammer head and rest on helical compression springs, which in turn rest on the support flanges. During punching, a power transmission slide is pushed between the drive head and the upper end of the punch, which presses the end of the punch down and thereby compresses the helical compression spring to the block length. The clamping of the end of the punching tool between the power transmission slide and helical compression spring thus achieved during punching is not as exact as a clamping between the power transmission slide and the support flange, so that the punching tolerances are relatively large here.

Der Erfindung liegt nun die Aufgabe zugrunde, den bekannten oberen Werkzeugträger für eine Stanze od. dgl. ohne Beeinträchtigung der Stanztoleranzen so auszugestalten und weiterzubilden, daß die Führung der Stanzwerkzeuge von der Anbringung der Verschlußkappe am Trägerkörper unbeeinflußt ist.The invention is based on the object of designing and developing the known upper tool carrier for a punch or the like without impairing the punching tolerances such that the guidance of the punching tools is unaffected by the attachment of the closure cap to the carrier body.

Der erfindungsgemäße obere Werkzeugträger, bei dem die zuvor aufgezeigte Aufgabe gelöst ist, ist durch die Merkmale des Anspruchs 1 beschrieben. Die Werkzeugführungen sind erfindungsgemäß vielmehr vollständig und geschlossen in einer Aufnahmeplatte vorgesehen, wobei die Aufnahmeplatte vollständig vom Trägerkörper abnehmbar ist. Bei vom Trägerkörper abgenommener, insbesondere abgeschwenkter Aufnahmeplatte können die Stanzwerkzeuge praktisch genauso schnell in Stanzrichtung bzw. in Richtung senkrecht zur Aufnahmeplatte in die Werkzeugführungen eingeschoben bzw. aus diesen herausgezogen werden, wie das bislang mit dem Einschieben bzw. Herausziehen aus den Halbschalen-Aufnahmen möglich war. Eine Beeinflussung der Stanzwerkzeuge in den Werkzeugführungen ist ausgeschlossen, da die Werkzeugführungen allseits ringförmig geschlossen sind. Der Querschnitt der Werkzeugführungen in der Ebene der Aufnahmeplatte kann durch die Spannkraft der Verriegelungsvorrichtung nicht verändert werden. Ein Festklemmen der Stanzwerkzeuge ist unmöglich.The upper tool carrier according to the invention, in which the above-mentioned object is achieved, is described by the features of claim 1. Rather, according to the invention, the tool guides are provided completely and closed in a receiving plate, the receiving plate being completely removable from the carrier body. When the mounting plate is removed from the carrier body, in particular swung out, the punching tools can move into the tool guides practically as quickly in the punching direction or in the direction perpendicular to the mounting plate inserted or pulled out of them, as was previously possible with the insertion or removal from the half-shell receptacles. It is impossible to influence the punching tools in the tool guides because the tool guides are closed in a ring on all sides. The cross section of the tool guides in the plane of the mounting plate cannot be changed by the clamping force of the locking device. It is impossible to clamp the punching tools.

Das aus dem Stand der Technik bekannte aktive Anheben der nicht aktivierten Stanzwerkzeuge in die Aufnahmeräume kann trotz der abschwenkbaren Aufnahmeplatte beibehalten werden, indem die Aufnahmeplatte mit entsprechenden Eingriffskanälen ausgestattet wird.The active lifting of the non-activated punching tools into the receiving spaces known from the prior art can be maintained in spite of the pivoting receiving plate by equipping the receiving plate with corresponding engagement channels.

Im einzelnen gibt es eine Vielzahl von Möglichkeiten, den erfindungsgemäßen oberen Werkzeugträger für eine Stanze od. dgl. auszugestalten und weiterzubilden. Dazu wird einerseits auf die dem Anspruch 1 nachgeordneten Ansprüche, andererseits auf die nachfolgende Erläuterung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Zeichnung verwiesen. In der Zeichnung zeigt

Fig. 1
in schematischer Darstellung in einer Seitenansicht eine Werkzeugmaschine, hier eine Lochstanze,
Fig. 2
den Gegenstand aus Fig. 1 in einer Vorderansicht,
Fig. 3
den Gegenstand aus Fig. 1 in einer Draufsicht und
Fig. 4
den Gegenstand aus Fig. 1 in einer Draufsicht bei abgenommenem Antriebskopf.
In particular, there are a multitude of possibilities for designing and developing the upper tool carrier according to the invention for a punch or the like. For this purpose, reference is made on the one hand to the claims subordinate to claim 1 and on the other hand to the following explanation of a preferred exemplary embodiment of the invention with reference to the drawing. In the drawing shows
Fig. 1
a schematic representation in a side view of a machine tool, here a punch,
Fig. 2
1 in a front view,
Fig. 3
1 in a plan view and
Fig. 4
1 in a plan view with the drive head removed.

Fig. 1 zeigt als ein besonderes, bevorzugtes Ausführungsbeispiel der Erfindung eine Werkzeugmaschine in Form einer Lochstanze mit einem lediglich angedeuteten, C-förmigen Maschinenkörper 1, einem am Maschinenkörper 1 ausgebildeten bzw. angeordneten unteren Werkzeugträger 2 mit einem Unterwerkzeug 3 und einem am Maschinenkörper 1 oben angeordneten bzw. ausgeführten oberen Werkzeugträger 4 mit einem Oberwerkzeug, hier einem Stanzwerkzeug 5. Nur angedeutet ist, daß auf dem oberen Werkzeugträger 4 bzw. auf dem Maschinenkörper 1 oberhalb des oberen Werkzeugträgers 4 ein Antriebskopf 6, beispielsweise in Form einer hydraulischen Zylinder-Kolben-Anordnung, sitzt, mit dessen Hilfe im Betrieb das Stanzwerkzeug 5 auf das Unterwerkzeug 3 zu abgesenkt werden kann.1 shows, as a special, preferred exemplary embodiment of the invention, a machine tool in the form of a hole punch with only one indicated, C-shaped machine body 1, a lower tool carrier 2 formed or arranged on the machine body 1 with a lower tool 3 and an upper tool carrier 4 arranged or executed on the upper side of the machine body 1 with an upper tool, here a punching tool 5. It is only indicated that On the upper tool carrier 4 or on the machine body 1 above the upper tool carrier 4, a drive head 6, for example in the form of a hydraulic cylinder-piston arrangement, is seated, with the aid of which the punch 5 can be lowered to the lower tool 3 during operation.

Wie Fig. 1 und Fig. 2 im Zusammenhang zeigen, zeichnet sich der hier dargestellte obere Werkzeugträger 4 dadurch aus, daß mindestens zwei, hier genau gesagt drei nebeneinander angeordnete Stanzwerkzeuge 5 vorgesehen sind. Im hier dargestellten und bevorzugten Ausführungsbeispiel besteht jedes Stanzwerkzeug 5 aus einem Stanzstempel 7, einem Stempelhalter 8 und einer den Stanzstempel 7 mit dem Stempelhalter 8 verbindenden Überwurfmutter 9. Die drei Stanzwerkzeuge 5 sind, wie Fig. 2 zeigt, so nahe wie möglich nebeneinander angeordnet.As shown in FIG. 1 and FIG. 2 in connection, the upper tool carrier 4 shown here is characterized in that at least two, to be precise three punching tools 5 arranged next to one another are provided. In the exemplary embodiment shown and preferred here, each punch 5 consists of a punch 7, a punch holder 8 and a union nut 9 connecting the punch 7 to the punch holder 8. The three punch tools 5 are arranged as close as possible to one another, as shown in FIG.

Fig. 1 läßt erkennen, daß der obere Werkzeugträger 4 im hier dargestellten Ausführungsbeispiel zunächst einen Trägerkörper 10 sowie eine Aufnahme aufweist. Fig. 3 macht dabei deutlich, daß in der Aufnahme nebeneinander angeordnete, sich in Stanzrichtung erstreckende Werkzeugführungen 12 für jedes Stanzwerkzeug 5 vorgesehen sind. Fig. 1, 2 und 3 machen im Zusammenhang weiter deutlich, daß der obere Werkzeugträger 4 eine am Trägerkörper 10 befestigte, insbesondere und im hier dargestellten Ausführungsbeispiel um eine Anlenkachse 13 schwenkbar am Trägerkörper 10 angelenkte Verschlußkappe (11) aufweist. Die Fig. 1 und 2 zeigen im Zusammenhang schließlich, daß die oberen Enden der Stanzwerkzeuge 5 in den Werkzeugführungen 12, in einer Richtung durch Auflageflansche 15 begrenzt, in Stanzrichtung, hier also vertikal, verschiebbar geführt sind. Die Auflageflansche 15 läßt Fig. 3 gut erkennen. Sie dienen dazu, ein Herausfallen der Stanzwerkzeuge 5 aus den Werkzeugführungen 12 nach unten zu verhindern.Fig. 1 shows that the upper tool carrier 4 in the embodiment shown here initially has a carrier body 10 and a receptacle. 3 makes it clear that tool guides 12 arranged next to one another and extending in the punching direction are provided for each punch 5. 1, 2 and 3 make further clear in connection with this that the upper tool carrier 4 has a closure cap (11) fastened to the carrier body 10, in particular and in the exemplary embodiment shown here pivotable about a pivot axis 13 on the carrier body 10. 1 and 2 finally show in connection that the upper ends of the punching tools 5 in the tool guides 12, limited in one direction by support flanges 15, are guided in the punching direction, here vertically. The support flanges 15 can be clearly seen in FIG. 3. They serve to prevent the punching tools 5 from falling out of the tool guides 12 downwards.

In den Figuren ist nicht dargestellt, daß die oberen Enden der Stanzwerkzeuge 5 mit hammerkopfartigen Erweiterungen versehen sind, die auf den in den Werkzeugführungen 12 vorgesehenen Auflageflanschen 15 aufliegen, so daß ein Durchrutschen der Stanzwerkzeuge 5 nach unten verhindert wird. Dies ist dem Stand der Technik, von dem die Erfindung ausgeht, zu entnehmen. Auch weitere Einzelheiten des hier erläuterten oberen Werkzeugträgers 4 sind aus der EP - A - 01 80 146 zu entnehmen, so daß auf diese vorveröffentlichung verwiesen werden darf.The figures do not show that the upper ends of the punching tools 5 are provided with hammer-head-like extensions which rest on the support flanges 15 provided in the tool guides 12, so that the punching tools 5 are prevented from slipping downward. This can be gathered from the prior art from which the invention is based. Further details of the upper tool carrier 4 explained here can also be found in EP-A-01 80 146, so that reference may be made to this prior publication.

Wie Fig. 4 der Zeichnung zeigt, sind auch bei dem hier erläuterten oberen Werkzeugträger 4 am Trägerkörper 10 oberhalb der Werkzeugführungen 12 und unterhalb einer Kraftübertragungsfläche 16 Aufnahmeräume 17 für die oberen Enden der Stanzwerkzeuge 5 vorgesehen. Die Aufnahmeräume 17 sind mit Hilfe von im wesentlichen senkrecht zur Stanzrichtung verschiebbaren Kraftübertragungsschiebern 18 od. dgl. überbrückbar, und zwar mit Hilfe von hier als pneumatische Zyliner-Kolben-Einheiten ausgeführten Stellantrieben 19. Die Kraftübertragungsfläche 16 ist dabei an der Unterseite des Antriebskopfes 6 angeordnet. Durch diese Technik wird erreicht, daß beim Abwärtshub der Kraftübertragungsfläche 16 nur dasjenige Stanzwerkzeug 5 aktiv nach unten bewegt wird, dessen Kraftübertragungsschieber 18 den zugehörigen Aufnahmeraum 17 überbrückt, während die beiden anderen Stanzwerkzeuge 5 in den jeweils zugeordneten Aufnahmeraum 17 zurückweichen können.As shown in FIG. 4 of the drawing, receiving spaces 17 for the upper ends of the punching tools 5 are also provided in the upper tool carrier 4 explained here on the carrier body 10 above the tool guides 12 and below a force transmission surface 16. The receiving spaces 17 can be bridged with the aid of force transmission slides 18 or the like, which can be displaced essentially perpendicular to the punching direction, with the aid of actuators 19 designed here as pneumatic cylinder / piston units. The force transmission surface 16 is arranged on the underside of the drive head 6 . This technique ensures that only the punching tool 5 is actively moved downward during the downward stroke of the force transmission surface 16, the force transmission slide 18 of which bridges the associated receiving space 17, while the other two punching tools 5 can move back into the respectively assigned receiving space 17.

Um die nicht aktivierten Stanzwerkzeuge 5 nicht von der Oberseite eines Werkstücks in die Aufnahmeräume 17 zurückführen zu lassen, sondern aktiv in die Aufnahmeräume 17 zurückzuführen, ist es auch bekannt, jedem Stanzwerkzeug 5 einen am Trägerkörper 10 angeordneten Hubhebel 20 zuzuordnen. Der Hubhebel 20 ist in Fig. 4 lediglich für jeden Aufnahmeraum 17 angedeutet. Der Hubhebel 20 kann das obere Ende des zugeordneten Stanzwerkzeugs 5 seitlich von unten her unterfassen, so daß mittels des Hubhebels 20 das obere Ende des Stanzwerkzeugs 5 bei zurückgezogenem Kraftübertragungsschieber 18 in den Aufnahmeraum 17 anhebbar ist.In order not to allow the non-activated punching tools 5 to be led back into the receiving spaces 17 from the top of a workpiece, but rather to actively return them to the receiving spaces 17, it is also known to assign a lifting lever 20 arranged on the carrier body 10 to each punching tool 5. The lifting lever 20 is only indicated in FIG. 4 for each receiving space 17. The lifting lever 20 can grasp the upper end of the associated punch 5 laterally from below, so that by means of the lifting lever 20 the upper end of the punch 5 can be raised into the receiving space 17 when the power transmission slide 18 is retracted.

Die Lehre der vorliegenden Erfindung ist nun am besten aus Fig. 3 der Zeichnung zu erkennen und dadurch gekennzeichnet, daß die Aufnahme und die Verschlußkappe in einer vom Trägerkörper 10 abnehmbaren Aufnahmeplatte 14 integriert sind, daß die Werkzeugführungen 12 in der Ebene senkrecht zur Stanzrichtung ringförmig geschlossen sind und daß die Stanzwerkzeuge 5 bei vom Trägerkörper 10 abgenommener, insbesondere abgeschwenkter Aufnahmeplatte 14 in Stanzrichtung bzw. in Richtung senkrecht zur Aufnahmeplatte 14 in die Werkzeugführungen 12 einschiebbar bzw. aus den Werkzeugführungen 12 herausziehbar sind. Fig. 3 zeigt dabei weiter, daß in Anpassung an die zuvor erläuterten Hubhebel 20 zum Anheben der Enden der Stanzwerkzeuge 5 die Aufnahmeplatte 14 auf der dem Trägerkörper 10 zugewandten Seite an jeder Werkzeugführung 12 einen unter dem Auflageflansch 15 in die Werkzeugführung 12 mündenden Eingriffskanal 21 für den Hubhebel 20 aufweist. Beim Anbringen der Aufnahmeplatte 14 am Trägerkörper 10 können so die Hubhebel 20 durch die Eingriffskanäle 21 bis unter den Rand des Stanzwerkzeugs 5, insbesondere die hammerkopfartige Erweiterung am oberen Ende, eingreifen. Dies Einführen der Hubhebel 20 geschieht bei schwenkbarer Anlenkung der Aufnahmeplatte 14 von selbst beim Heranschwenken der Aufnahmeplatte 14 an den Trägerkörper 10. Dazu empfiehlt es sich dann, daß die Eingriffskanäle 21 in der Aufnahmeplatte 14 auf den der Anlenkachse 13 für die schwenkbare Anlenkung am Trägerkörper 10 zugewandten Seiten von den Werkzeugführungen 12 zu der dem Trägerkörper 10 zugewandten Seite hin erweitert sind. Das entspricht der kreisbogenförmigen Bewegung der Eingriffskanäle 21 um die Anlenkachse 13.The teaching of the present invention can now best be seen from FIG. 3 of the drawing and is characterized in that the receptacle and the closure cap are integrated in a receptacle plate 14 which can be removed from the carrier body 10, that the tool guides 12 are closed in a ring in the plane perpendicular to the punching direction and that the punching tools 5 can be inserted or withdrawn from the tool guides 12 in the punching direction or in the direction perpendicular to the mounting plate 14 when the mounting plate 14 is removed, in particular pivoted, from the mounting body 10. Fig. 3 further shows that, in adaptation to the previously described lifting lever 20 for lifting the ends of the punching tools 5, the receiving plate 14 on the side facing the carrier body 10 on each tool guide 12 has an engagement channel 21 which opens into the tool guide 12 under the support flange 15 has the lifting lever 20. When the receiving plate 14 is attached to the carrier body 10, the lifting levers 20 can thus engage through the engagement channels 21 to below the edge of the punching tool 5, in particular the hammer head-like extension at the upper end. This insertion of the lifting lever 20 takes place when the mounting plate 14 is pivotably articulated when the mounting plate 14 is pivoted toward the carrier body 10. For this purpose, it is then recommended that the engagement channels 21 in the mounting plate 14 be on the articulation axis 13 for the pivotable articulation on the carrier body 10 facing sides are expanded from the tool guides 12 to the side facing the carrier body 10. This corresponds to the circular arc-shaped movement of the engagement channels 21 about the articulation axis 13.

Die Fig. 2 und 3 und auch Fig. 4 der Zeichnung machen sehr deutlich, daß im hier dargestellten und bevorzugten Ausführungsbeispiel der Mittelpunkt der Anlenkachse 13 für die Anlenkung der Aufnahmeplatte 14 am Trägerkörper 10 seitlich mit erheblichem Abstand, vorzugsweise mit einem Abstand von ca. 100 mm bis 200 mm, insbesondere von ca. 150 mm, vom nächstliegenden Rand der nächstliegenden Werkzeugführung 12 angeordnet ist. Diese seitlich-auslegerartige Konstruktion von Trägerkörper 10 und Aufnahmeplatte 14 hat den Vorteil, daß die oberen Enden der Stanzwerkzeuge 5 licht nach oben aus den Werkzeugführungen 12 herausgezogen werden können. Durch den seitlichen Mindestabstand der Anlenkachse 13 von der nächstliegenden Werkzeugführung 12 ist gewährleistet, daß auch bei Vorhandensein von überkragenden Teilen des oberen Werkzeugträgers 4 die Werkzeugführungen 12 genügend weit vom Trägerkörper 10 wegbewegt werden können, um den Einschubweg für die Stanzwerkzeuge 5 vollständig freizugeben.2 and 3 and also FIG. 4 of the drawing make it very clear that, in the preferred exemplary embodiment shown here, the center of the articulation axis 13 for the articulation of the mounting plate 14 on the support body 10 laterally at a considerable distance, preferably at a distance of approximately 100 mm to 200 mm, in particular approximately 150 mm, from the nearest edge of the nearest tool guide 12 is arranged. These Lateral-boom-like construction of carrier body 10 and mounting plate 14 has the advantage that the upper ends of the punching tools 5 can be pulled out of the tool guides 12 light upwards. The lateral minimum distance of the articulation axis 13 from the nearest tool guide 12 ensures that the tool guides 12 can be moved far enough away from the carrier body 10 even in the presence of protruding parts of the upper tool carrier 4 in order to completely clear the insertion path for the punching tools 5.

Im Stand der Technik, von dem die Lehre der vorliegenden Erfindung ausgeht, ist die Aufnahmeplatte 14 mittels einer auf der der Anlenkachse 13 gegenüberliegenden Seite angeordneten Verriegelungsvorrichtung 22 am Trägerkörper 10 verriegelbar. Fig. 2 und Fig. 4 zeigen nun im Zusammenhang deutlich, daß nach der hier bevorzugten Lehre der Erfindung eine zweite Verriegelungsvorrichtung 23 nahe der Anlenkachse 13 vorgesehen und , nach bevorzugter Lehre der Erfindung, unterhalb eines hier befindlichen, sich zur Anlenkachse 13 erstreckenden Teils 24 der Aufnahmeplatte 14 angeordnet ist. Die Verriegelungsvorrichtung 23 kann dabei ebenso wie die Verriegelungsvorrichtung 22 in der einleitend erläuterten Weise ausgestaltet sein, nämlich aus einem an dem Trägerkörper 10 in horizontaler Ebene schwenkbar angelenkten Riegelbolzen 25 und einer an der Aufnahmeplatte 14 vorgesehenen, einseitig, vorzugsweise zur Querseite hin offenen Riegelaufnahme 26 bestehen, wobei zur Verriegelung der Riegelbolzen 25 in die Riegelaufnahme 26 einschwenkbar und mittels einer Spannmutter 27 od. dgl. festspannbar ist. Die Spannmutter 27 od. dgl. kann dabei als Kniespannhebel ausgeführt sein, wie das insbesondere Fig. 4 deutlich erkennen läßt. Die Anordnung der zweiten Verriegelungsvorrichtung 23 unterhalb des Teils 24 der Aufnahmeplatte 14 schafft die Möglichkeit, nach Abschwenken des Riegelbolzens 25 mit der Spannmutter 27 nach links in Fig. 2 die Aufnahmeplatte 14 ebenfalls nach links aufzuschwenken, ohne mit der Verriegelungsvorrichtung 23 zu kollidieren.In the prior art, from which the teaching of the present invention is based, the receiving plate 14 can be locked on the carrier body 10 by means of a locking device 22 arranged on the side opposite the articulation axis 13. 2 and 4 show clearly in the context that according to the preferred teaching of the invention, a second locking device 23 is provided near the articulation axis 13 and, according to the preferred teaching of the invention, below a part 24 located here and extending to the articulation axis 13 the receiving plate 14 is arranged. The locking device 23, like the locking device 22, can be configured in the manner explained in the introduction, namely consist of a locking bolt 25 articulated on the support body 10 in the horizontal plane and a locking receptacle 26 provided on the mounting plate 14 and preferably open on the transverse side , wherein the locking bolt 25 can be pivoted into the locking receptacle 26 and locked by means of a clamping nut 27 or the like. The clamping nut 27 or the like can be designed as a knee clamping lever, as can be seen particularly clearly in FIG. 4. The arrangement of the second locking device 23 below the part 24 of the mounting plate 14 creates the possibility, after the locking bolt 25 has been pivoted away with the clamping nut 27 to the left in FIG. 2, to also open the mounting plate 14 to the left without colliding with the locking device 23.

Claims (7)

  1. An upper tool holder (4) for a punch or the like, with at least two punching tools (5) disposed side by side, with a support body (10), with a seating with tool guides (12) for each punching tool (5) disposed side by side in the seating and extending in the direction of punching, and with a closure cap (11), particularly a pivoting closure cap, which can be removed in a plane perpendicular to the direction of punching and which is fastened, in particular pivotally linked about a pivot pin (13), to the support body (10), wherein the upper ends of the punching tools (5) in the tool guides (12) are displaceably guided in the direction of punching, restricted in one direction by contact flanges (15), wherein seating cavities (17) for the upper ends of the punching tools (5) are provided on the support body (10) above the tool guides (12) and below a force transmission face (16), and the seating cavities (17) can be bridged by force transmission slides (18) or the like which are displaceable substantially perpendicularly to the direction of punching, wherein a lifting lever (20) disposed on the support body (10) is assigned to each punching tool (5) and the lifting lever (20) laterally engages the upper end of the associated punching tool (5) from below, and wherein the upper end of the punching tool (5) can be lifted into the seating cavity (17) by means of the lifting lever (20) when the force transmission slide (18) is withdrawn, characterised in that the seating and the closure cap (11) are integrated in a seating plate (14) which can be removed from the support body (10), that the tool guides (12) are closed in a ring-like manner in the plane perpendicular to the direction of punching, that the punching tools (5) can be inserted in the tool guides (12) or withdrawn from the tool guides (12) in the direction of punching or in a direction perpendicular to the seating plate (14) when the seating plate (14) is removed from, particularly swung away from, the support body (10), and that the seating plate (14) has an engagement channel (21) at each tool guide (12) for the lifting lever (20), which engagement channel leads into the tool guide (12) below the contact flange (15) and is disposed on the face of the seating plate facing the support body (10).
  2. A tool holder according to claim 1, characterised in that the engagement channels (21) in the seating plate (14) on the faces facing the pivot pin (13) for the pivotal coupling to the support body (10) are widened from the tool guides (12) towards the face facing the support body (10).
  3. A tool holder according to claim 1 or 2, characterised in that the centre point of the pivot pin (13) for coupling the seating plate (14) to the support body (10) is disposed to the side at a considerable distance from the nearest edge of the nearest tool guide (12).
  4. A tool holder according to claim 3, characterised in that the pivot pin (13) for coupling the seating plate (14) to the support body (10) is disposed to the side at a distance of 100 mm to 200 mm from the nearest edge of the nearest tool guide (12).
  5. A tool holder according to claim 4, characterised in that the pivot pin (13) for coupling the seating plate (14) to the support body (10) is disposed to the side at a distance of 150 mm from the nearest edge of the nearest tool guide (12).
  6. A tool holder according to any one of claims 1 to 5, wherein the seating plate (14) can be locked to the support body (10) by means of a locking apparatus (22) disposed on the side opposite the pivot pin (13), characterised in that a second locking apparatus (23) is provided near the pivot pin (13).
  7. A tool holder according to claim 6, characterised in that the second locking apparatus (23) is disposed below a part (24) of the seating plate (14) which is situated here and which extends towards the pivot pin (13).
EP87115367A 1986-11-04 1987-10-21 Upper tool holder for a punch or the like Expired - Lifetime EP0266624B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87115367T ATE102096T1 (en) 1986-11-04 1987-10-21 UPPER TOOL CARRIER FOR A PUNCH OD. DGL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3637488A DE3637488C1 (en) 1986-11-04 1986-11-04 Upper tool carrier for a punch or the like.
DE3637488 1986-11-04

Publications (3)

Publication Number Publication Date
EP0266624A2 EP0266624A2 (en) 1988-05-11
EP0266624A3 EP0266624A3 (en) 1990-01-17
EP0266624B1 true EP0266624B1 (en) 1994-03-02

Family

ID=6313105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115367A Expired - Lifetime EP0266624B1 (en) 1986-11-04 1987-10-21 Upper tool holder for a punch or the like

Country Status (8)

Country Link
EP (1) EP0266624B1 (en)
JP (1) JPS63123540A (en)
AT (1) ATE102096T1 (en)
BR (1) BR8705862A (en)
CA (1) CA1292422C (en)
DE (2) DE3637488C1 (en)
ES (1) ES2050104T3 (en)
MX (1) MX161211A (en)

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Publication number Priority date Publication date Assignee Title
CN102310141A (en) * 2011-09-01 2012-01-11 天津大田包装容器有限公司 Double-station riveting mold for riveting and locking of opening of steel barrel
CN103286224B (en) * 2012-10-09 2017-06-06 湖南同心实业有限责任公司 Multiplex quick mounting type mould bases
CN108326152B (en) * 2018-01-25 2020-01-07 湖州龙溢机械有限公司 Adjustable automobile oil seal seat stamping device
CN108372221B (en) * 2018-05-29 2020-01-07 合肥智权信息科技有限公司 Efficient stamping production line
CN109396316B (en) * 2018-12-24 2024-01-09 重庆江东机械有限责任公司 Forging press two-station pressure head replacing device
CN112658136A (en) * 2020-12-11 2021-04-16 安徽贵达汽车部件有限公司 Brake block steel backing pressure nail mould

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Publication number Priority date Publication date Assignee Title
DE1502721A1 (en) * 1964-09-03 1970-01-08 Gilbos Const Pvba Device for selecting punches in punching machines

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Publication number Priority date Publication date Assignee Title
NL299765A (en) * 1900-01-01
GB1038743A (en) * 1964-04-24 1966-08-10 Smeets Gerard G F Multiple head punch holder
DE1552618A1 (en) * 1966-04-14 1970-04-09 Peter Heck Device for punching flat workpieces
FR2389425B1 (en) * 1977-05-03 1981-02-27 Bo Ermanno
SU854515A1 (en) * 1978-03-27 1981-08-18 Азовское специальное конструкторское бюро кузнечно-прессового оборудования и автоматических линий Apparatus for securing punches for punching holes
DE2940661A1 (en) * 1979-10-06 1981-04-09 Fa. Muhr und Bender, 5952 Attendorn MACHINE TOOL
DE3440093A1 (en) * 1984-11-02 1986-05-07 Fa. Muhr und Bender, 5952 Attendorn MACHINE TOOL, ESPECIALLY PUNCHING

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1502721A1 (en) * 1964-09-03 1970-01-08 Gilbos Const Pvba Device for selecting punches in punching machines

Also Published As

Publication number Publication date
ATE102096T1 (en) 1994-03-15
JPH0472622B2 (en) 1992-11-18
EP0266624A3 (en) 1990-01-17
EP0266624A2 (en) 1988-05-11
DE3789198D1 (en) 1994-04-07
JPS63123540A (en) 1988-05-27
BR8705862A (en) 1988-06-14
DE3637488C1 (en) 1988-02-25
MX161211A (en) 1990-08-20
ES2050104T3 (en) 1994-05-16
CA1292422C (en) 1991-11-26

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