EP0585576B1 - Punching machine - Google Patents
Punching machine Download PDFInfo
- Publication number
- EP0585576B1 EP0585576B1 EP93111350A EP93111350A EP0585576B1 EP 0585576 B1 EP0585576 B1 EP 0585576B1 EP 93111350 A EP93111350 A EP 93111350A EP 93111350 A EP93111350 A EP 93111350A EP 0585576 B1 EP0585576 B1 EP 0585576B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- die
- punching
- punch
- worktable
- 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
Links
- 238000004080 punching Methods 0.000 title claims description 29
- 238000000034 method Methods 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
Definitions
- the invention relates to a punch, in which the workpiece is supported on a support plate of a work table or the like and can be displaced there relative to the tool, wherein a plurality of openings or holes can be punched into the workpiece one behind the other by means of at least one punch which can be moved vertically from top to bottom and which can be punched in a corresponding recess of a die occurs during and after the punching process, a cutting edge being formed between the punch and the die, which cuts out the opening or the hole from the workpiece.
- the invention further relates to a method for punching according to the preamble of claim 6. A punch and a method for punching according to this type are known from DE-A-2718536.
- a disadvantage of this known arrangement is that during the punching process, a burr forms on the workpiece in the peripheral region of the opening, which burrs into the die. This burr formation occurs all the more, the more the tools, that is to say the punch and / or die, are worn out.
- the result of the burr formation is that the workpiece can only be moved with difficulty to the next punching position, because the previously punched hole and the burr formed thereby hold the workpiece in the die relative to the die.
- the hindrance caused by the ridge can also have a greater impact the more holes are already made in the workpiece.
- the invention is accordingly based on the object of designing a hole punch of the type mentioned in such a way that, despite a possibly relatively strong formation of a burr, a cyclical displacement of the workpiece to the location of the next punch hole is effortless and in particular also possible automatically.
- This object is achieved in that the support plate and / or the worktable can be raised so that the workpiece can be subjected to an upward stroke relative to the die before and during the displacement after a previous punching process.
- the burr formation can no longer hinder the movement of the workpiece to the next strand location, because due to the stroke the ridge reaching into the recess of the die is lifted out of the die, so that a transverse displacement across the burr and across for vertical extension of the punch and die.
- This stroke can be relatively small, in particular it depends on the height of the ridge, which in turn depends on the material. As a rule, it is sufficient if the stroke has a size of approximately 2 mm.
- the support plate and / or the worktable is provided with an articulated bearing at its end facing away from the die and the tool, this end of the support plate being pivotable about a horizontal axis. This means that in this area the support plate does not perform a stroke, so that the stroke only has an effect on the tool side, ie on the side facing away from the joint axis.
- a particular advantage of this arrangement is that it is possible due to the use of a hinge axis defining the one edge of the support plate, but nevertheless to support the support plate exactly in the machine during the punching process.
- the hole punch is provided with a stop rail which is provided with mountings which can be fastened to the rail in different positions, the stop rail being movable relative to the work table and in the direction of its longitudinal axis in addition to its transverse movement.
- stop rail it is essential that the stop rail can be easily adjusted in both directions, which makes it necessary to move the workpiece in a special way after the punching process.
- the invention provides that the workpiece before and during the displacement after a previous one Punching is subjected to an upward stroke relative to the die.
- the device consists of a work table and support plate 1 and a stop rail 2, which is displaceable relative to the work table and support plate 1 in two directions shown by the double arrows 3 and 4.
- a stepping motor 5 is provided which drives a spindle 6 which engages in a spindle nut on the stop rail 2 and thus moves the stop rail 2 in the direction of the double arrow 4.
- the stop rail 2 is driven synchronously by a corresponding spindle 7.
- the double arrow 3 that is to say in the longitudinal direction of the stop rail 2
- the latter is moved by means of a stepping motor 8 via a spindle 9.
- the actual workpiece holders which can be attached to the stop rail 2 at different distances from one another due to the bores 10, are designated by 11 and 12.
- a punch 16 acts in the direction of arrow 13 on the workpieces held in this way, the die holder 14 being indicated by dashed lines and the tool holder or the tool being able to extend through an opening 15 in the work table.
- FIG. 2 is the hole punch according to FIG. 1 with a workpiece 17 placed on the work table and support plate 1 and held there. This is to be provided with punch holes 18, as indicated schematically. Since the punched holes 18 are punched one behind the other, the displacement movement of the workpiece 17 is impeded by the burr of the previously punched holes 18 in the manner described. This hindrance is avoided if the worktable and support plate 1, as provided according to the invention, is subjected to a stroke.
- This stroke can come about, for example, in that the worktable and support plate 1 is evenly raised at all four corners, that is in the direction of the arrows 19, and that the workpiece 17 is displaced in the raised state.
- a particularly advantageous method for bringing about the stroke is that, as shown in FIG. 2, the worktable or support plate 1 has an articulated bearing at its end facing away from the die 20 (see FIG. 3) and the tool 21 ( Bearing blocks 22 and 23) is provided so that this end of the worktable or support plate 1 is pivotable about a horizontal axis 24.
- the work table and support plate 1 is thus in the direction of the double arrow 25 pivoted around the axis 24, the pivoting path being extremely short in this area, because at the end opposite the axis 24, that is to say in the area of the tool and the workpiece, the pivoting path according to the double arrow 26 only has to be approximately 2 mm in order to position the workpiece 17 relative to the Work table and support plate 1 to move.
- the lifting or swiveling movement can take place automatically and be coupled to the displacement process.
- Fig. 3 illustrates on a greatly enlarged scale and in a schematic representation these relationships between the die 20 and the tool 21 (see FIG. 2), a cutting edge is formed, which forms a punching movement in the direction of arrow 13 against the workpiece 17 Ridges 27 leads, which protrudes into the associated recess 28 of the die 20, so that a displacement of the workpiece 17 in the horizontal direction is hindered.
- the workpiece 17 is subjected to a stroke at which it is moved away from the die 20 in the direction of the arrow 29, so that the ridge 27 emerges from the recess 28.
- the worktable or support plate 1 is moved back against the direction of the arrows 30, so that the workpiece 17 is supported again on the die 20 and the next punching process is carried out can.
- the invention provides that the workpiece before and during the displacement after a previous one Punching is subjected to an upward stroke relative to the die.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Punching Or Piercing (AREA)
Description
Die Erfindung betrifft eine Lochstanze, bei welcher das Werkstück auf einer Auflagerplatte eines Arbeitstisches oder dergleichen aufgelagert und dort relativ zum Werkzeug verschiebbar ist, wobei mehrere Öffnungen oder Löcher hintereinander in das Werkstück mittels wenigstens eines senkrecht von oben nach unten bewegbaren Lochstempels einstanzbar sind, der in eine entsprechende Ausnehmung einer Matrize während und nach dem Stanzvorgang eintritt, wobei zwischen Stempel und Matrize eine Schneidkante gebildet ist, die die Öffnung oder das Loch aus dem Werkstück ausschneidet. Ferner betrifft die Erfindung ein Verfahren zum Lochstanzen nach dem Oberbegriff von Anspruch 6. Eine Lochstanze sowie ein Verfahren zum Lochstanzen gemäß dieser Gattung sind aus der DE-A-2718536 bekannt.The invention relates to a punch, in which the workpiece is supported on a support plate of a work table or the like and can be displaced there relative to the tool, wherein a plurality of openings or holes can be punched into the workpiece one behind the other by means of at least one punch which can be moved vertically from top to bottom and which can be punched in a corresponding recess of a die occurs during and after the punching process, a cutting edge being formed between the punch and the die, which cuts out the opening or the hole from the workpiece. The invention further relates to a method for punching according to the preamble of
Nachteilig bei dieser bekannten Anordnung ist es, daß während des Stanzvorganges sich am Werkstück im Umfangsbereich der Öffnung ein Grat ausbildet, welcher in die Matrize hineintritt. Diese Gratausbildung tritt umso stärker auf, je mehr die Werkzeuge, also Stempel und/oder Matrize verschlissen sind.A disadvantage of this known arrangement is that during the punching process, a burr forms on the workpiece in the peripheral region of the opening, which burrs into the die. This burr formation occurs all the more, the more the tools, that is to say the punch and / or die, are worn out.
Die Gratausbildung hat zur Folge, daß das Werkstück sich zur nächsten Stanzlage nur mühevoll verschieben läßt, weil das zuvor gestanzte Loch und der dadurch gebildete Grat das Werkstück relativ zur Matrize in dieser festhält. Die durch den Grat auftretende Behinderung kann sich außerdem umso stärker auswirken, je mehr Löcher bereits in das Werkstück eingebracht sind.The result of the burr formation is that the workpiece can only be moved with difficulty to the next punching position, because the previously punched hole and the burr formed thereby hold the workpiece in the die relative to the die. The hindrance caused by the ridge can also have a greater impact the more holes are already made in the workpiece.
Der Erfindung liegt demgemäß die Aufgabe zugrunde, eine Lochstanze der eingangs genannten Art so auszubilden, daß trotz einer gegebenenfalls relativ starken Ausbildung eines Grates ein taktweises Verschieben des Werkstückes zur Stelle des jeweils nächsten Stanzloches mühelos und insbesondere auch automatisch möglich ist.The invention is accordingly based on the object of designing a hole punch of the type mentioned in such a way that, despite a possibly relatively strong formation of a burr, a cyclical displacement of the workpiece to the location of the next punch hole is effortless and in particular also possible automatically.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Auflagerplatte und/oder die Arbeitstischplatte anhebbar ist, so daß das Werkstück vor und während der Verschiebung nach einem vorherigen Stanzvorgang einem nach oben gerichteten Hub relativ zur Matrize unterworfen werden kann.This object is achieved in that the support plate and / or the worktable can be raised so that the workpiece can be subjected to an upward stroke relative to the die before and during the displacement after a previous punching process.
Auf diese Weise wird erreicht, daß sich die Gratausbildung nicht mehr hindernd gegen die Verschiebung des Werkstückes zum nächsten Strangplatz auswirken kann, da aufgrund des Hubes der in die Ausnehmung der Matrize reichende Grat aus dieser herausgehoben wird, so daß eine Querverschiebung quer zum Grat und quer zur senkrechten Erstreckung von Stempel und Matrize möglich wird.In this way it is achieved that the burr formation can no longer hinder the movement of the workpiece to the next strand location, because due to the stroke the ridge reaching into the recess of the die is lifted out of the die, so that a transverse displacement across the burr and across for vertical extension of the punch and die.
Dieser Hub kann relativ klein sein, insbesondere ist er von der Höhe des Grates abhängig, der seinerseits materialabhängig ist. In der Regel genügt es, wenn der Hub eine Größe von etwa 2 mm hat.This stroke can be relatively small, in particular it depends on the height of the ridge, which in turn depends on the material. As a rule, it is sufficient if the stroke has a size of approximately 2 mm.
Besonders vorteilhaft ist es, wenn die Auflagerplatte und/oder die Arbeitstischplatte an ihrem der Matrize und dem Werkzeug abgewandten Ende mit einer gelenkigen Lagerung versehen ist, wobei dieses Ende der Auflagerplatte um eine horizontale Achse schwenkbar ist. Dies bedeutet, daß in diesem Bereich die Auflagerplatte keinen Hub durchführt, so daß der Hub nur werkzeugseitig, also auf der der Gelenkachse abgewandten Seite sich auswirkt.It is particularly advantageous if the support plate and / or the worktable is provided with an articulated bearing at its end facing away from the die and the tool, this end of the support plate being pivotable about a horizontal axis. This means that in this area the support plate does not perform a stroke, so that the stroke only has an effect on the tool side, ie on the side facing away from the joint axis.
Ein besonderer Vorteil dieser Anordnung besteht darin, daß es aufgrund der Verwendung einer die eine Kante der Auflagerplatte festlegenden Gelenkachse möglich ist, gleichwohl die Auflagerplatte exakt in der Maschine während des Stanzvorganges zu lagern.A particular advantage of this arrangement is that it is possible due to the use of a hinge axis defining the one edge of the support plate, but nevertheless to support the support plate exactly in the machine during the punching process.
Besonders vorteilhaft kann es sein, wenn die Lochstanze mit einer Anschlagschiene versehen ist, welche mit in verschiedenen Lagen zur Schiene an dieser befestigbaren Halterungen versehen ist, wobei zusätzlich zu ihrer Querbewegung die Anschlagschiene relativ zum Arbeitstisch und in Richtung ihrer Längsachse bewegbar ist.It can be particularly advantageous if the hole punch is provided with a stop rail which is provided with mountings which can be fastened to the rail in different positions, the stop rail being movable relative to the work table and in the direction of its longitudinal axis in addition to its transverse movement.
Bei dieser Anordnung ist es nämlich wesentlich, daß die Anschlagschiene sich in beiden Richtungen mühelos verstellen läßt, was in besonderer Weise eine Bewegbarkeit des Werkstückes nach dem Stanzvorgang erforderlich macht.In this arrangement, it is essential that the stop rail can be easily adjusted in both directions, which makes it necessary to move the workpiece in a special way after the punching process.
Bei einem hierauf basierenden Verfahren zum Lochstanzen, bei welchem das Werkstück auf einer Auflagerplatte eines Arbeitstisches oder dergleichen aufgelagert und dort relativ zum Werkzeug verschoben wird, wobei mehrere Öffnungen oder Löcher hintereinander in das Werkstück mittels wenigstens eines senkrecht von oben nach unten bewegbaren Lochstempels eingestanzt werden, der in eine entsprechende Ausnehmung der Matrize während und nach dem Stanzvorgang eintritt, wobei zwischen Stempel und Matrize eine Schneidkante gebildet wird, die die Öffnung oder das Loch aus dem Werkstück ausschneidet, ist erfindungsgemäß vorgesehen, daß das Werkstück vor und während der Verschiebung nach einem vorherigen Stanzvorgang einem nach oben gerichteten Hub relativ zur Matrize unterworfen wird.In a method for hole punching based on this, in which the workpiece is placed on a support plate of a work table or the like and is displaced there relative to the tool, several openings or holes being punched one after the other into the workpiece by means of at least one punch which can be moved vertically from top to bottom, who enters a corresponding recess of the die during and after the punching process, a cutting edge being formed between the punch and die, which cuts out the opening or the hole from the workpiece, the invention provides that the workpiece before and during the displacement after a previous one Punching is subjected to an upward stroke relative to the die.
Die Erfindung wird im folgenden anhand von Ausführungsbeispielen in der Zeichnung näher erläutert.
- Fig. 1
- zeigt in perspektivischer Darstellung ein Ausführungsbeispiel der erfindungsgemäßen Lochstanze.
- Fig. 2
- ist die Lochstanze nach Fig. 1 bei auf der Arbeitstisch- und Auflagerplatte 1 gehaltertem Werkstück.
- Fig. 3
- ist in schematischer Darstellung und vergrößertem Maßstab der Schnitt III-III nach Fig. 2.
- Fig. 1
- shows a perspective view of an embodiment of the punch according to the invention.
- Fig. 2
- 1 with the workpiece held on the work table and support plate 1.
- Fig. 3
- is a schematic representation and enlarged scale of the section III-III of FIG. 2nd
Gemäß Fig. 1 besteht die Vorrichtung aus einer Arbeitstisch- und Auflagerplatte 1 und einer Anschlagschiene 2, die gegenüber der Arbeitstisch- und Auflagerplatte 1 in zwei durch die Doppelpfeile 3 und 4 wiedergegebenen Richtungen verschiebbar ist. Zur Verschiebung in Querrichtung gemäß dem Doppelpfeil 4 ist ein Schrittmotor 5 vorgesehen, der eine Spindel 6 antreibt, die in eine Spindelmutter an der Anschlagschiene 2 eingreift und damit die Anschlagschiene 2 in Richtung des Doppelpfeiles 4 bewegt. Auf der gegenüberliegenden Seite wird die Anschlagschiene 2 synchron durch eine entsprechende Spindel 7 angetrieben. In Richtung des Doppelpfeiles 3, also in Längsrichtung der Anschlagschiene 2 wird diese mittels eines Schrittmotors 8 über eine Spindel 9 bewegt.1, the device consists of a work table and support plate 1 and a stop rail 2, which is displaceable relative to the work table and support plate 1 in two directions shown by the double arrows 3 and 4. For displacement in the transverse direction according to the double arrow 4, a stepping motor 5 is provided which drives a
Die eigentlichen Werkstückhalter, die in unterschiedlichen Abständen zueinander aufgrund der Bohrungen 10 in der Anschlagschiene 2 an dieser anbringbar sind, sind mit 11 und 12 bezeichnet.The actual workpiece holders, which can be attached to the stop rail 2 at different distances from one another due to the
Ein Lochstempel 16 wirkt in Richtung des Pfeiles 13 auf die so gehalterten Werkstücke, wobei der Matrizenhalter 14 gestrichelt angedeutet ist und dieser bzw. das Werkzeug sich durch eine Öffnung 15 im Arbeitstisch hindurch erstrecken kann.A
Fig. 2 ist die Lochstanze nach Fig. 1 mit einem auf die Arbeitstisch- und Auflagerplatte 1 aufgelegten und dort gehalterten Werkstück 17. Dieses soll mit Stanzlöchern 18, wie schematisch angedeutet, versehen werden. Da die Stanzlöcher 18 hintereinander gestanzt werden, wird die Verschiebebewegung des Werkstückes 17 durch den Grat der jeweils zuvor gestanzten Löcher 18 in der beschriebenen Weise behindert. Diese Behinderung wird vermieden, wenn die Arbeitstisch- und Auflagerplatte 1, wie erfindungsgemäß vorgesehen, einem Hub unterworfen wird.FIG. 2 is the hole punch according to FIG. 1 with a
Dieser Hub kann beispielsweise dadurch zustande kommen, daß die Arbeitstisch- und Auflagerplatte 1 an allen vier Ecken, also in Richtung der Pfeile 19, gleichmäßig angehoben wird, und daß im angehobenen Zustand das Werkstück 17 verschoben wird.This stroke can come about, for example, in that the worktable and support plate 1 is evenly raised at all four corners, that is in the direction of the
Eine besonders vorteilhafte Methode zur Herbeiführung des Hubes besteht aber darin, daß, wie in Fig. 2 dargestellt, die Arbeitstisch- oder Auflagerplatte 1 an ihrem der Matrize 20 (vgl. Fig. 3) und dem Werkzeug 21 abgewandten Ende mit einer gelenkigen Lagerung (Lagerböcke 22 und 23) versehen ist, so daß dieses Ende der Arbeitstisch- oder Auflagerplatte 1 um eine horizontale Achse 24 schwenkbar ist. Die Arbeitstisch- und Auflagerplatte 1 wird also in Richtung des Doppelpfeiles 25 um die Achse 24 herumgeschwenkt, wobei in diesem Bereich der Schwenkweg äußerst gering ist, weil am der Achse 24 gegenüberliegenden Ende, also im Bereich von Werkzeug und Werkstück, der Schwenkweg gemäß Doppelpfeil 26 nur etwa 2 mm betragen muß, um das Werkstück 17 relativ zur Arbeitstisch- und Auflagerplatte 1 zu verschieben.A particularly advantageous method for bringing about the stroke, however, is that, as shown in FIG. 2, the worktable or support plate 1 has an articulated bearing at its end facing away from the die 20 (see FIG. 3) and the tool 21 (
Die Hub- oder Schwenkbewegung kann automatisch erfolgen und an den Verschiebevorgang angekoppelt sein.The lifting or swiveling movement can take place automatically and be coupled to the displacement process.
Fig. 3 verdeutlicht in stark vergrößertem Maßstab und in schematischer Darstellung diese Verhältnisse Zwischen der Matrize 20 und dem Werkzeug 21 (vgl. Fig. 2) wird eine Schneidkante gebildet, die bei einer Stanzbewegung in Richtung des Pfeiles 13 gegen das Werkstück 17 zur Ausbildung eines Grates 27 führt, der in die zugehörige Ausnehmung 28 der Matrize 20 hineinragt, so daß eine Verschiebung des Werkstückes 17 in horizontaler Richtung behindert ist. Um die Verschiebung dennoch mühelos durchführen zu können, wird das Werkstück 17 einem Hub unterworfen, bei welchem es in Richtung des Pfeiles 29 von der Matrize 20 weg bewegt wird, so daß der Grat 27 aus der Ausnehmung 28 heraustritt. Diese Hubbewegung des Werkstückes 17, mit welcher es von der Matrize 20 getrennt wird, wird durch die Arbeitstisch- und Auflagerplatte 1 herbeigeführt, welche im Lochbereich das Werkstück 17 untergreift und bei ihrer Bewegung in Richtung des Pfeiles 30, das auf diese Weise in Richtung des Pfeiles 29 bewegte Werkstück mitnimmt.Fig. 3 illustrates on a greatly enlarged scale and in a schematic representation these relationships between the
Nach dem Verschiebevorgang, wenn sich also das Werkstück 17 in der nächsten Stanzposition befindet, wird die Arbeitstisch- oder Auflagerplatte 1 entgegen der Richtung der Pfeile 30 zurückbewegt, so daß das Werkstück 17 wieder zur Auflagerung auf der Matrize 20 kommt und der nächste Stanzvorgang durchgeführt werden kann.After the displacement process, when the
Bei einem hierauf basierenden Verfahren zum Lochstanzen, bei welchem das Werkstück auf einer Auflagerplatte eines Arbeitstisches oder dergleichen aufgelagert und dort relativ zum Werkzeug verschoben wird, wobei mehrere Öffnungen oder Löcher hintereinander in das Werkstück mittels wenigstens eines senkrecht von oben nach unten bewegbaren Lochstempels eingestanzt werden, der in eine entsprechende Ausnehmung der Matrize während und nach dem Stanzvorgang eintritt, wobei zwischen Stempel und Matrize eine Schneidkante gebildet wird, die die Öffnung oder das Loch aus dem Werkstück ausschneidet, ist erfindungsgemäß vorgesehen, daß das Werkstück vor und während der Verschiebung nach einem vorherigen Stanzvorgang einem nach oben gerichteten Hub relativ zur Matrize unterworfen wird.In a method for punching holes based on this, in which the workpiece is placed on a support plate of a work table or the like and is displaced there relative to the tool, several openings or holes being punched one after the other into the workpiece by means of at least one punch which can be moved vertically from top to bottom, who enters a corresponding recess of the die during and after the punching process, a cutting edge being formed between the punch and die, which cuts out the opening or the hole from the workpiece, the invention provides that the workpiece before and during the displacement after a previous one Punching is subjected to an upward stroke relative to the die.
Claims (6)
- Punching machine, in which the workpiece is mounted (1) on a mounting plate of a worktable or the like and can be displaced there relative to the tool (21), it being possible for a plurality of openings or holes to be punched one behind the other into the workpiece (17) by means of at least one punch (21) which can be moved vertically from the top downwards and enters into a corresponding cutout (28) in a die (20) during and after the punching operation, a cutting edge being formed between the punch (21) and the die (20), which cutting edge cuts the opening or the hole out of the workpiece, characterized in that the mounting plate and/or the worktable top (1) can be raised so that the workpiece (17) can be subjected to an upwardly directed stroke relative to the die (20) before and during the displacement after a prior punching operation.
- Punching machine according to claim 1, characterized in that the stroke has a magnitude of about 2 mm.
- Punching machine according to one of the preceding claims, characterized in that the mounting plate and/or the worktable top (1) is provided with an articulated bearing (22, 23) at its end facing away from the die (20) and the tool (21).
- Punching machine according to Claim 4, characterized in that the end of the mounting plate and/or of the worktable top (1) is pivotable about a horizontal axis (24).
- Punching machine according to one of the preceding claims, characterized in that the punching machine is provided with a stop rail (2) which is provided with holders (11, 12) which can be attached to the rail in different positions thereof, the stop rail (2), in addition to its transverse movement, being movable relative to the worktable (1) and in the direction of its longitudinal axis.
- Method for hole-punching, in which the workpiece (17) is mounted on a mounting plate of a worktable or the like (1) and is displaced there relative to the tool (21), a plurality of openings or holes being, punched one behind the other into the workpiece (17) by means of at least one punch (21) which can be moved vertically from the top downwards and enters into a corresponding cutout (28) in a die (20) during and after the punching operation, a cutting edge being formed between the punch (21) and the die (20), which cutting edge cuts the opening or the hole out of the workpiece (17), characterized in that the workpiece (17) is subjected to an upwardly directed stroke relative to the die (20) before and during the displacement after a prior punching operation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4225836A DE4225836A1 (en) | 1992-08-05 | 1992-08-05 | Hole punch |
| DE4225836 | 1992-08-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0585576A1 EP0585576A1 (en) | 1994-03-09 |
| EP0585576B1 true EP0585576B1 (en) | 1996-01-31 |
Family
ID=6464865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93111350A Expired - Lifetime EP0585576B1 (en) | 1992-08-05 | 1993-07-15 | Punching machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0585576B1 (en) |
| DE (2) | DE4225836A1 (en) |
| ES (1) | ES2084420T3 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10243020A1 (en) * | 2002-09-17 | 2004-03-25 | Ina-Schaeffler Kg | Method for production of spindle nut containing ball drive, creating opening by radial moved punching tool |
| CN102225551B (en) * | 2011-04-07 | 2013-06-05 | 江汉大学 | Production process of polyfluortetraethylene screen net for blueprinting machine |
| EP2829334B1 (en) | 2013-07-25 | 2015-12-30 | TRUMPF Werkzeugmaschinen GmbH + Co. KG | Drive device for a motion unit of a machine tool and machine tool with such a drive device |
| CN105081069A (en) * | 2015-09-18 | 2015-11-25 | 秦皇岛信越智能装备有限公司 | Wheel online perforating machine |
| CN111185522A (en) * | 2020-02-17 | 2020-05-22 | 黄薇婷 | Automatic processing device for metal round pipe |
| CN112620521A (en) * | 2020-11-24 | 2021-04-09 | 南京金志精密机电有限公司 | Production line for precision electromechanical machining |
| CN113245440B (en) * | 2021-06-29 | 2021-09-28 | 南通科帆钣金有限公司 | Sheet metal punching device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1563921A (en) * | 1976-04-26 | 1980-04-02 | Mercer Nairne & Co Ltd | Assemblies for workpiece positioning |
| US4879894A (en) * | 1988-06-06 | 1989-11-14 | Roper Whitney Company | Press with movable workpiece support carrier |
| DE3931320C1 (en) * | 1989-09-20 | 1991-08-08 | Feintool International Holding, Lyss, Ch | |
| DE4121981A1 (en) * | 1991-07-03 | 1993-01-07 | Heinrich Gerdes | Workpiece holding down device for stamping press - includes hold down brackets which can be bolted to horizontal rail with rail being moved by motor |
-
1992
- 1992-08-05 DE DE4225836A patent/DE4225836A1/en not_active Withdrawn
-
1993
- 1993-07-15 EP EP93111350A patent/EP0585576B1/en not_active Expired - Lifetime
- 1993-07-15 DE DE59301540T patent/DE59301540D1/en not_active Expired - Fee Related
- 1993-07-15 ES ES93111350T patent/ES2084420T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0585576A1 (en) | 1994-03-09 |
| DE4225836A1 (en) | 1994-02-10 |
| DE59301540D1 (en) | 1996-03-14 |
| ES2084420T3 (en) | 1996-05-01 |
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