EP0439684B1 - Punch press - Google Patents

Punch press Download PDF

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Publication number
EP0439684B1
EP0439684B1 EP90120187A EP90120187A EP0439684B1 EP 0439684 B1 EP0439684 B1 EP 0439684B1 EP 90120187 A EP90120187 A EP 90120187A EP 90120187 A EP90120187 A EP 90120187A EP 0439684 B1 EP0439684 B1 EP 0439684B1
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EP
European Patent Office
Prior art keywords
section
ram
sections
base plate
frame
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
EP90120187A
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German (de)
French (fr)
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EP0439684A1 (en
Inventor
Oskar Eigenmann
Helmut Messner
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.)
Bruderer AG
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Bruderer AG
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Publication of EP0439684A1 publication Critical patent/EP0439684A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04Frames; Guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B1/00Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0064Counterbalancing means for movable press elements

Definitions

  • the present invention relates to a punch press with a frame, a drive, a ram device driven by the drive and a base plate device.
  • a punch press according to the preamble of claim 1 has become known from EP-A-0 281 777.
  • This has two tool carriers, or ram devices and base plate devices for processing two sheet metal strips advanced at right angles to one another, the stamped products produced therefrom being connected to one another in one of the ram and base plate devices.
  • the individual ram and base plate devices are not subdivided to relieve the pressure on the entire punch press and cannot accommodate larger, off-center loads.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a punch press in which the ram device is divided into a number of ram sections carried independently of one another in the direction of travel of a workpiece and the base plate device is equally divided into mutually independently supported base plate sections .
  • the advantages achieved by the invention can essentially be seen in the fact that the ram and the base plate are divided for a long time and narrow tools can be used. Furthermore, in order to complete a product in the punch press in a single pass, the UT positions of the individual rams can be set out of phase, so that the total load on the machine is reduced. The division into individual sections also results in smaller oscillating masses, because obviously the mass balance is also divided in sections. A very high dynamic stability is thus achieved.
  • the punch press has a drive which is constructed in a known manner and which contains an electric motor 16 which drives the V-belt pulley 26 via a V-belt 17.
  • the V-belt 17 and the V-belt pulley 26 are arranged in a housing cover 27.
  • the V-belt pulley 26 is drive-connected to the flywheel 18 of the punch press.
  • the clutch 19 and the brake 20 are arranged in this flywheel 18, as indicated in FIG. 2, the associated power transmission disks being identified in FIG. 2 by the reference numbers 19 and 20.
  • This clutch braking device 19, 20 is arranged together with the flywheel 18 in a housing 21.
  • This housing 21 is equipped with support columns 25, via which support columns 25 the housing 21 on the respective floor 24, for example Workshop is supported.
  • a first frame section 11 of the overall frame of the punch press is rigidly screwed onto the housing 21 by, for example, screw bolts 28.
  • a shaft section 14, which is designed as an eccentric shaft, is mounted in the frame section 11 via bearings 29, 30.
  • This shaft section 14 is connected via a coupling 31 to the output shaft section 32 of the clutch braking device 19, 20.
  • This coupling 31 is designed such that rotational forces can be transmitted from the output shaft section 32 to the shaft section 14 in a driving manner, but relative axial and radial movements, including those which occur due to bending of the shaft section 14, can be absorbed by this coupling 31.
  • Couplings which are only designed to be torsionally rigid are, for example, Oldham couplings which are generally known.
  • the shaft section 14 is designed as an eccentric shaft and drives the two connecting rods 7, 8.
  • the mass force compensation device 9, 10 is mounted on the central eccentric part of this shaft section 14.
  • the compensation unit 9 for compensating the rotating mass forces and the compensation unit 10 for compensating the oscillating mass forces are generally drawn in the figures.
  • the mass balance device, including the shaft section 14, shown here is disclosed in detail in US-A-4,757,734, so that a detailed description thereof is not necessary.
  • differently designed mass force compensation devices can also be arranged.
  • This version also shows two connecting rods 7, 8. It is obvious to the person skilled in the art that drives with only one connecting rod or then with more than two connecting rods according to known designs can also be present.
  • the two connecting rods 7, 8 shown are via a ram height adjustment device 33 with the ram, ie in the punch press designed according to the invention connected to a plunger section 1.
  • the ram height adjustment device 33 indicated in the illustrated embodiment is known, so that a detailed description is not necessary.
  • a base plate section 4 is arranged under the plunger section 1. This base plate section 4 is suspended directly on the frame section 11, so that it or the entire section of the punch press is free of soil.
  • the tappet section 1 is guided over tappet guides 34, in the illustrated embodiment over four guide columns (see also FIG. 5). These tappet guides can be designed, for example, like those which are disclosed in DE-A-38 13 235, so that no detailed explanation of these tappet guides 34 is necessary here either.
  • FIGS. 1 and 2 the structural parts of the punch press, which are arranged in the frame section 11, are present several times, here three times.
  • the ram device of this punch press has three ram sections 1, 2, 3 with the associated mass force compensation device and ram height adjustment device.
  • the base plate device of the punch press is divided into three base plate sections 4, 5, 6.
  • three frame sections 11, 12, 13 are also present.
  • the shaft train driven by the drive is accordingly divided into several shaft sections, the shaft sections 14, 15 being shown in the drawings.
  • the individual shaft sections are also connected to one another with the Oldham coupling described above or a coupling similar to this, by means of which only the rotating drive forces are transmitted, axial and radial displacements and deflections of the individual shaft sections not being transferable to the respectively adjacent ones.
  • the punch press thus has three modular work units, which complement one another, do not influence each other in operation in any way and where the stroke, bottom position and ram height can be set completely independently of each other.
  • the punch press further has a carrier section 22, which is connected to the rightmost frame section 13.
  • This support section 22 has support columns 25, via which it and thus the punch press are supported on a respective bottom surface 24.
  • feed devices 36 Only for the sake of completeness are two feed devices 36 indicated in FIG. 1. Since the plunger device or base plate device, which consists of several sections, apparently processes or processes a considerable length of a strip-shaped workpiece per stroke of the punch press, a feed device 36 is present both at the entry and at the exit of the punch press. These feed devices can also be designed in accordance with known designs, for example the one disclosed in European patent application EP-A-0 366 108.
  • the punch press shown is particularly suitable for extremely long, narrow tools with large eccentric loads. Since such tools can now also be used in follow-up tools which are divided into individual sections, there are no mutual adverse influences with regard to the precision in the case of the often occurring off-center loads. In particular, insertion and assembly work can now be carried out with greater precision. It has already been noted that the deflection of the shaft sections or eccentric shafts or possibly crankshafts cannot mutually influence one another as a result of the connection between the individual shaft sections which is torsionally rigid only in terms of drive. Because each of the three press sections has a self-locking Contains frame section, a mutual influence by different punching loads or frame expansions is excluded.
  • a plunger section can be loaded with the full punching force without the neighboring section being damaged by e.g. Bends or vibrations can be negatively affected.
  • the individual frame sections obviously also have smaller dimensions in comparison with known stamping presses, with the result that a smaller frame suspension results from the punching forces due to the now obviously smaller bending lengths of the ram and base plate.
  • a smaller distance between the belt running height and the longitudinal axis of the shaft train, the crankshaft is obviously also possible. Because there is a larger number of smaller bearings due to the subdivision into sections, less energy is required in operation and, in particular, there is a smaller total bearing play. It should also be noted that, due to the subdivision into individual sections, thermal expansions can be kept smaller and the ram guidance overall can obviously be carried out more precisely.
  • the punch press is only supported on the one hand in the housing of the drive and on the other hand in a separate carrier section, one remains Large free space below the individual base plate sections for removing punched parts. Furthermore, in comparison with punch presses which are designed according to the prior art, the height position of the base plate section and also the operating elements (height adjustment) can be kept lower for the same work, so that the worker remains easily accessible, so that it is not necessary is to provide pits under the base plates or, on the other hand, catwalks for access to individual operating elements.

Description

Die vorliegende Erfindung betrifft eine Stanzpresse mit einem Rahmen, einem Antrieb, einer vom Antrieb getriebenen Stösselvorrichtung und einer Grundplattenvorrichtung.The present invention relates to a punch press with a frame, a drive, a ram device driven by the drive and a base plate device.

Erzeugnisse, die sich mittels Stanzpressen und den entsprechenden Werkzeugen herstellen lassen, werden je länger je komplizierter, insbesondere durch den Einsatz von immer höher entwickelten Folgeschnittwerkzeugen. Eine Folge davon ist, dass immer grössere und schnellere Stanzpressen entwickelt und zum Einsatz gebracht werden. Grössere Stanzpressen bedingen jedoch grössere bewegte Massen mit der Folge stetig wachsender Massenkräfte und stetig wachsendem Energiebedarf. Im Gegensatz dazu besteht jedoch auch das Bedürfnis nach immer schneller laufenden Stanzpressen zwecks Erhöhung der Produktion und offensichtlich bedeutet eine entsprechend höhere Hubzahl höhere Massenträgheitskräfte, grössere Lagerbelastungen, etc., so dass in dieser Beziehung bald eine obere Grenze des technisch Machbaren erreicht wird. Insbesondere sind stetig wachsende bewegte Massen mit stetig wachsenden Hubzahlen schlecht oder nicht vereinbar.Products that can be manufactured by means of punch presses and the corresponding tools are becoming more and more complicated, particularly due to the use of progressively more advanced cutting tools. One consequence of this is that ever larger and faster punch presses are developed and put to use. Larger punch presses, however, require larger moving masses with the consequence of constantly increasing mass forces and constantly increasing energy requirements. In contrast, however, there is also a need for ever faster-running punch presses in order to increase production and obviously a correspondingly higher number of strokes means higher inertia forces, greater bearing loads, etc., so that in this respect an upper limit of what is technically feasible will soon be reached. In particular, constantly growing moving masses are difficult or incompatible with constantly increasing stroke rates.

Durch die EP-A-0 281 777 ist eine Stanzpresse nach dem Oberbegriff des Anspruchs 1 bekannt geworden. Diese weist zwei Werkzeugträger, bzw. Stösselvorrichtungen und Grundplattenvorrichtungen zur Bearbeitung von zwei rechtwinklig zueinander vorgeschobenen Blechstreifen auf, wobei die daraus hergestellten Stanzprodukte bei einer der Stössel- und Grundplattenvorrichtungen miteinander verbunden werden. Jedoch sind die einzelnen Stössel- und Grundplattenvorrichtungen nicht zur Entlastung der gesamten Stanzpresse unterteilt und können nicht grössere, aussermittige Belastungen aufnehmen.A punch press according to the preamble of claim 1 has become known from EP-A-0 281 777. This has two tool carriers, or ram devices and base plate devices for processing two sheet metal strips advanced at right angles to one another, the stamped products produced therefrom being connected to one another in one of the ram and base plate devices. However, the individual ram and base plate devices are not subdivided to relieve the pressure on the entire punch press and cannot accommodate larger, off-center loads.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, eine Stanzpresse zu schaffen, bei welcher die Stösselvorrichtung in Durchlaufrichtung eines Werkstückes in einer Anzahl voneinander unabhängig getragene Stösselabschnitte unterteilt ist und die Grundplattenvorrichtung in gleicher Weise in voneinander unabhängig abgestützte Grundplattenabschnitte unterteilt ist.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of creating a punch press in which the ram device is divided into a number of ram sections carried independently of one another in the direction of travel of a workpiece and the base plate device is equally divided into mutually independently supported base plate sections .

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass dadurch, dass der Stössel und die Grundplatte unterteilt sind, lange und schmale Werkzeuge zum Einsatz gebracht werden können. Weiter können, um ein Produkt in der Stanzpresse in einem einzigen Durchgang fertigzustellen, die UT-Lagen der einzelnen Stössel phasenverschoben festgelegt werden, so dass die Gesamtbelastung der Maschine kleiner wird. Auch sind durch die Aufteilung in einzelne Abschnitte kleinere oszillierende Massen vorhanden, weil offensichtlich damit auch der Massenausgleich abschnittsweise aufgeteilt wird. Damit wird eine sehr hohe dynamische Stabilität erreicht.The advantages achieved by the invention can essentially be seen in the fact that the ram and the base plate are divided for a long time and narrow tools can be used. Furthermore, in order to complete a product in the punch press in a single pass, the UT positions of the individual rams can be set out of phase, so that the total load on the machine is reduced. The division into individual sections also results in smaller oscillating masses, because obviously the mass balance is also divided in sections. A very high dynamic stability is thus achieved.

Im folgenden wird die Erfindung anhand von lediglich einen Lösungsweg darstellenden Zeichnung beispielsweise näher erläutert.In the following, the invention is explained in more detail, for example, with the aid of a drawing that shows only one possible solution.

Es zeigt:

  • Figur 1 eine Seitenansicht einer Ausführung der erfindungsgemässen Stanzpresse;
  • Figur 2 einen Längsschnitt durch einen Teil der Stanzpresse der Figur 1;
  • Figur 3 einen Schnitt entlang der Linie III-III der Figur 1
  • Figur 4 eine Ansicht in Richtung des Pfeiles A der Figur 1; und
  • Figur 5 einen Schnitt entlang der Linie V-V der Figur 2.
It shows:
  • Figure 1 is a side view of an embodiment of the punch press according to the invention;
  • Figure 2 shows a longitudinal section through part of the punch press of Figure 1;
  • 3 shows a section along the line III-III of Figure 1
  • Figure 4 is a view in the direction of arrow A of Figure 1; and
  • 5 shows a section along the line VV of Figure 2.

Die Stanzpresse weist einen in bekannter Weise aufgebauten Antrieb auf, der einen Elektromotor 16 enthält, welcher über einen Keilriemen 17 die Keilriemenscheibe 26 treibt. Der Keilriemen 17 und die Keilriemenscheibe 26 sind in einem Gehäusedeckel 27 angeordnet. Die Keilriemenscheibe 26 ist mit dem Schwungrad 18 der Stanzpresse antriebsverbunden. In diesem Schwungrad 18 sind, wie in der Figur 2 angedeutet ist, die Kupplung 19 sowie die Bremse 20 angeordnet, wobei hierzu in der Figur 2 die dazugehörigen Kraftübertragungsscheiben mit den Bezugsziffern 19 und 20 identifiziert sind. Diese Kupplungs-Bremsvorrichtung 19,20 ist zusammen mit dem Schwungrad 18 in einem Gehäuse 21 angeordnet. Dieses Gehäuse 21 ist mit Tragsäulen 25 ausgerüstet, über welche Tragsäulen 25 das Gehäuse 21 auf dem jeweiligen Boden 24 einer z.B. Werkshalle abgestützt ist. Ein erster Rahmenabschnitt 11 des insgesamten Rahmens der Stanzpresse ist durch beispielsweise Schraubbolzen 28 am Gehäuse 21 starr angeschraubt. Im Rahmenabschnitt 11 ist ein Wellenabschnitt 14, der als Exzenterwelle ausgebildet ist, über Lager 29,30 gelagert. Dieser Wellenabschnitt 14 ist über eine Kupplung 31 mit dem Abtriebswellenabschnitt 32 der Kupplungs-Bremsvorrichtung 19,20 verbunden. Diese Kupplung 31 ist derart ausgebildet, dass Rotationskräfte vom Abtriebswellenabschnitt 32 auf den Wellenabschnitt 14 diesen somit treibend übertragen werden können, jedoch relative axiale und radiale Bewegungen, einschliesslich solche, welche durch ein Durchbiegen des Wellenabschnittes 14 auftreten, durch diese Kupplung 31 aufgenommen werden können. Kupplungen, die lediglich antriebsmässig drehsteif ausgebildet sind, sind beispielsweise Oldham-Kupplungen, welche allgemein bekannt sind.The punch press has a drive which is constructed in a known manner and which contains an electric motor 16 which drives the V-belt pulley 26 via a V-belt 17. The V-belt 17 and the V-belt pulley 26 are arranged in a housing cover 27. The V-belt pulley 26 is drive-connected to the flywheel 18 of the punch press. The clutch 19 and the brake 20 are arranged in this flywheel 18, as indicated in FIG. 2, the associated power transmission disks being identified in FIG. 2 by the reference numbers 19 and 20. This clutch braking device 19, 20 is arranged together with the flywheel 18 in a housing 21. This housing 21 is equipped with support columns 25, via which support columns 25 the housing 21 on the respective floor 24, for example Workshop is supported. A first frame section 11 of the overall frame of the punch press is rigidly screwed onto the housing 21 by, for example, screw bolts 28. A shaft section 14, which is designed as an eccentric shaft, is mounted in the frame section 11 via bearings 29, 30. This shaft section 14 is connected via a coupling 31 to the output shaft section 32 of the clutch braking device 19, 20. This coupling 31 is designed such that rotational forces can be transmitted from the output shaft section 32 to the shaft section 14 in a driving manner, but relative axial and radial movements, including those which occur due to bending of the shaft section 14, can be absorbed by this coupling 31. Couplings which are only designed to be torsionally rigid are, for example, Oldham couplings which are generally known.

Der Wellenabschnitt 14 ist als Exzenterwelle ausgebildet und treibt die zwei Pleuel 7,8. Die Massenkraftausgleichsvorrichtung 9,10 ist auf dem mittleren exzentrischen Teil dieses Wellenabschnittes 14 gelagert. Dabei sind in den Figuren allgemein die Ausgleichseinheit 9 zum Ausgleichen der rotierenden Massenkräfte und die Ausgleichseinheit 10 zum Ausgleichen der oszillierenden Massenkräfte gezeichnet. Die hier gezeichnete Massenkraftausgleichsvorrichtung einschliesslich dem Wellenabschnitt 14 ist im Einzelnen in der US-A- 4 757 734 offenbart, so dass sich eine nähere Beschreibung derselben erübrigt. Ergänzend soll bemerkt werden, dass auch anders ausgebildete Massenkraftausgleichsvorrichtungen angeordnet sein können. Auch zeigt diese Ausführung zwei Pleuel 7,8. Dem Fachmann ist es offensichtlich, dass auch Antriebe mit lediglich einem Pleuel oder dann solche mit mehr als zwei Pleueln gemäss bekannten Ausbildungen vorhanden sein können.The shaft section 14 is designed as an eccentric shaft and drives the two connecting rods 7, 8. The mass force compensation device 9, 10 is mounted on the central eccentric part of this shaft section 14. The compensation unit 9 for compensating the rotating mass forces and the compensation unit 10 for compensating the oscillating mass forces are generally drawn in the figures. The mass balance device, including the shaft section 14, shown here is disclosed in detail in US-A-4,757,734, so that a detailed description thereof is not necessary. In addition, it should be noted that differently designed mass force compensation devices can also be arranged. This version also shows two connecting rods 7, 8. It is obvious to the person skilled in the art that drives with only one connecting rod or then with more than two connecting rods according to known designs can also be present.

Die gezeichneten zwei Pleuel 7,8 sind über eine Stösselhöhen-Verstellvorrichtung 33 mit dem Stössel, d.h. bei der erfindungsgemäss ausgeführten Stanzpresse einem Stösselabschnitt 1 verbunden. Die in der gezeichneten Ausführung angedeutete Stösselhöhenverstellvorrichtung 33 ist bekannt, so dass eine detaillierte Beschreibung nicht notwendig ist.The two connecting rods 7, 8 shown are via a ram height adjustment device 33 with the ram, ie in the punch press designed according to the invention connected to a plunger section 1. The ram height adjustment device 33 indicated in the illustrated embodiment is known, so that a detailed description is not necessary.

Unter dem Stösselabschnitt 1 ist ein Grundplattenabschnitt 4 angeordnet. Dieser Grundplattenabschnitt 4 ist direkt am Rahmenabschnitt 11 aufgehängt, so dass er bzw. der gesamte Abschnitt der Stanzpresse bodenfrei ist. Der Stösselabschnitt 1 ist über Stösselführungen 34, in der gezeichneten Ausführung über vier Führungssäulen (siehe auch Figur 5) geführt. Diese Stösselführungen können beispielsweise wie diejenigen ausgebildet sein, die in der DE-A- 38 13 235 offenbart sind, so dass auch hier keine detaillierte Erläuterung dieser Stösselführungen 34 notwendig ist.A base plate section 4 is arranged under the plunger section 1. This base plate section 4 is suspended directly on the frame section 11, so that it or the entire section of the punch press is free of soil. The tappet section 1 is guided over tappet guides 34, in the illustrated embodiment over four guide columns (see also FIG. 5). These tappet guides can be designed, for example, like those which are disclosed in DE-A-38 13 235, so that no detailed explanation of these tappet guides 34 is necessary here either.

Aus den Figuren 1 und 2 ist ersichtlich, dass die beschriebenen, im Rahmenabschnitt 11 angeordneten strukturellen Teile der Stanzpresse mehrfach, hier dreifach, vorhanden sind. Das heisst insbesondere, dass die Stösselvorrichtung dieser Stanzpresse drei Stösselabschnitte 1,2,3 mit der dazugehörigen Massenkraftausgleichsvorrichtung und Stösselhöhenverstellvorrichtung aufweist. Entsprechend ist auch die Grundplattenvorrichtung der Stanzpresse in drei Grundplattenabschnitte 4,5,6 aufgeteilt. Entsprechend sind auch drei Rahmenabschnitte 11,12,13 vorhanden. Der vom Antrieb getriebene Wellenstrang ist dementsprechend in mehrere Wellenabschnitte aufgeteilt, wobei in den Zeichnungen die Wellenabschnitte 14,15 ersichtlich sind. Die einzelnen Wellenabschnitte sind untereinander ebenfalls mit der vorgängig beschriebenen Oldham-Kupplung oder einer dieser ähnlichen Kupplung verbunden, mittels welcher lediglich die rotierenden Antriebskräfte übertragen werden, wobei axiale und radiale Verschiebungen sowie Durchbiegungen der einzelnen Wellenabschnitte nicht auf die jeweils benachbarten übertragbar sind.It can be seen from FIGS. 1 and 2 that the structural parts of the punch press, which are arranged in the frame section 11, are present several times, here three times. This means in particular that the ram device of this punch press has three ram sections 1, 2, 3 with the associated mass force compensation device and ram height adjustment device. Accordingly, the base plate device of the punch press is divided into three base plate sections 4, 5, 6. Accordingly, three frame sections 11, 12, 13 are also present. The shaft train driven by the drive is accordingly divided into several shaft sections, the shaft sections 14, 15 being shown in the drawings. The individual shaft sections are also connected to one another with the Oldham coupling described above or a coupling similar to this, by means of which only the rotating drive forces are transmitted, axial and radial displacements and deflections of the individual shaft sections not being transferable to the respectively adjacent ones.

Die Stanzpresse weist somit drei modulförmige Arbeitseinheiten auf, welche sich zu einem Gesamten ergänzen, sich jedoch im Betrieb in keiner Weise gegenseitig beeinflussen und bei denen sich der Hub, die UT-Lage und die Stösselhöhe vollständig unabhängig voneinander festlegen lassen.The punch press thus has three modular work units, which complement one another, do not influence each other in operation in any way and where the stroke, bottom position and ram height can be set completely independently of each other.

Bei dem dem Antrieb in axialer Richtung entgegengesetzten Ende weist die Stanzpresse weiter einen Trägerabschnitt 22 auf, welche mit dem rechtsäussersten Rahmenabschnitt 13 verbunden ist. Dieser Trägerabschnitt 22 weist Tragsäulen 25 auf, über welche er und somit die Stanzpresse auf eine jeweilige Bodenfläche 24 abgestützt ist.At the end opposite the drive in the axial direction, the punch press further has a carrier section 22, which is connected to the rightmost frame section 13. This support section 22 has support columns 25, via which it and thus the punch press are supported on a respective bottom surface 24.

Lediglich der Vollständigkeit halber sind zwei Vorschubapparate 36 in der Figur 1 angedeutet. Da offensichtlich die aus mehreren Abschnitten bestehende Stösselvorrichtung bzw. Grundplattenvorrichtung pro Hub der Stanzpresse eine beträchtliche Länge eines bandförmigen Werkstückes bearbeitet bzw. verarbeitet, ist sowohl beim Eintritt als auch beim Austritt der Stanzpresse ein Vorschubapparat 36 vorhanden. Auch diese Vorschubapparate können gemäss bekannten Ausbildungen ausgeführt sein, beispielsweise derjenigen, die in der europäischen Patentanmeldung EP-A-O 366 108 offenbart ist.Only for the sake of completeness are two feed devices 36 indicated in FIG. 1. Since the plunger device or base plate device, which consists of several sections, apparently processes or processes a considerable length of a strip-shaped workpiece per stroke of the punch press, a feed device 36 is present both at the entry and at the exit of the punch press. These feed devices can also be designed in accordance with known designs, for example the one disclosed in European patent application EP-A-0 366 108.

Die gezeigte Stanzpresse ist insbesondere für äusserst lange schmale Werkzeuge mit grosser aussermittiger Belastung geeignet. Da solche Werkzeuge nun ebenfalls in als in einzelne Abschnitte aufgeteilte Folgewerkzeuge zur Anwendung kommen können, ergeben sich keine gegenseitigen nachteiligen Einflüsse in bezug auf die Präzision im Falle der oft auftretenden aussermittigen Belastungen. Insbesondere lassen sich nun Einlege- und Montagearbeiten mit grösserer Präzision durchführen. Es ist bereits bemerkt worden, dass durch die lediglich antriebsmässig drehsteife Verbindung zwischen den einzelnen Wellenabschnitten die Durchbiegungen der Wellenabschnitte, bzw. Exzenterwellen oder gegebenenfalls Kurbelwellen einander nicht gegenseitig beeinflussen können. Da jeder der drei Pressenabschnitte einen in sich kraftschlüssigen Rahmenabschnitt enthält, ist auch eine gegenseitige Beeinflussung durch unterschiedliche Stanzbelastungen bzw. Gestelldehnungen ausgeschlossen. Dadurch, dass unterschiedliche Stösselfesthübe und phasenverschobene UT-Lagen der einzelnen Abschnitte nun möglich ist, kann die Gesamtbelastung in bezug auf schlagartig auftretende Kräfte bei den einzelnen Schnitt- bzw. Biegearbeiten vermindert werden. Offensichtlich sind durch die Aufteilung der Stösselvorrichtung in einzelne Stösselabschnitte kleinere oszillierende Massen vorhanden, der Massenausgleich ist auch abschnittsweise aufgeteilt, so dass eine hohe dynamische Stabilität erreicht werden kann, z.B. können nun Eintauchtiefenveränderungen über den gesamten Hubzahlbereich der Stanzpresse viel kleiner gehalten werden.The punch press shown is particularly suitable for extremely long, narrow tools with large eccentric loads. Since such tools can now also be used in follow-up tools which are divided into individual sections, there are no mutual adverse influences with regard to the precision in the case of the often occurring off-center loads. In particular, insertion and assembly work can now be carried out with greater precision. It has already been noted that the deflection of the shaft sections or eccentric shafts or possibly crankshafts cannot mutually influence one another as a result of the connection between the individual shaft sections which is torsionally rigid only in terms of drive. Because each of the three press sections has a self-locking Contains frame section, a mutual influence by different punching loads or frame expansions is excluded. Because different ram strokes and phase-shifted bottom positions of the individual sections are now possible, the total load in relation to abrupt forces can be reduced during the individual cutting or bending work. Obviously, due to the division of the ram device into individual ram sections, smaller oscillating masses are available, the mass balance is also divided into sections so that high dynamic stability can be achieved, e.g. changes in immersion depth over the entire stroke rate range of the punch press can now be kept much smaller.

Es ist nun auch möglich, dass z.B. ein Stösselabschnitt mit der vollen Stanzkraft belastet werden kann, ohne dass der benachbarte Abschnitt durch z.B. Biegungen oder Schwingungen negativ beeinflusst werden kann. Die einzelnen Rahmenabschnitte weisen offensichtlich ebenfalls im Vergleich mit bekannten Stanzpressen kleinere Abmessungen auf, womit sich eine kleinere Rahmenfederung aus den Stanzkräften aufgrund der nun offensichtlich im Vergleich kleineren Biegelängen von Stössel und Grundplatte ergibt. Auch ist offensichtlich ein kleinerer Abstand zwischen der Bandlaufhöhe und der Längsachse des Wellenstranges, der Kurbelwelle möglich. Dadurch, dass aufgrund der abschnittsweisen Unterteilung eine grössere Anzahl jedoch kleinerer Lager vorhanden ist, ist ein kleinerer Energieaufwand im Betrieb benötigt und insbesondere herrscht ein kleineres Gesamtlagerspiel vor. Ebenfalls zu bemerken ist, dass aufgrund der Unterteilungen in einzelne Abschnitte Wärmeausdehnungen kleiner gehalten werden können und offensichtlich die Stösselführung insgesamt genauer erfolgen kann.It is now also possible that e.g. a plunger section can be loaded with the full punching force without the neighboring section being damaged by e.g. Bends or vibrations can be negatively affected. The individual frame sections obviously also have smaller dimensions in comparison with known stamping presses, with the result that a smaller frame suspension results from the punching forces due to the now obviously smaller bending lengths of the ram and base plate. A smaller distance between the belt running height and the longitudinal axis of the shaft train, the crankshaft, is obviously also possible. Because there is a larger number of smaller bearings due to the subdivision into sections, less energy is required in operation and, in particular, there is a smaller total bearing play. It should also be noted that, due to the subdivision into individual sections, thermal expansions can be kept smaller and the ram guidance overall can obviously be carried out more precisely.

Weil die Stanzpresse lediglich einerseits beim Gehäuse des Antriebs und andererseitss bei einem getrennten Trägerabschnitt abgestützt ist, verbleibt ein grosser Freiraum unterhalb den einzelnen Grundplattenabschnitten zum Abführen ausgestanzter Teile. Weiter kann im Vergleich mit Stanzpressen, die gemäss dem Stand der Technik ausgebildet sind, für eine selbe Arbeit die Höhenstellung der Grundplattenabschnitt und auch der Bedienungselemente (Höhenverstellung) tiefer gehalten werden, so dass eine bequeme Zugänglichkeit für den Arbeiter bleibt, so dass es nicht notwendig ist, unter den Grundplatten Gruben oder andererseits Laufstege für eine Zugänglichkeit einzelner Bedienungselemente vorzusehen.Because the punch press is only supported on the one hand in the housing of the drive and on the other hand in a separate carrier section, one remains Large free space below the individual base plate sections for removing punched parts. Furthermore, in comparison with punch presses which are designed according to the prior art, the height position of the base plate section and also the operating elements (height adjustment) can be kept lower for the same work, so that the worker remains easily accessible, so that it is not necessary is to provide pits under the base plates or, on the other hand, catwalks for access to individual operating elements.

Claims (1)

  1. Punch press with a frame, a drive (16-20), a ram structure (1-3) driven by the drive and a base plate structure, which ram structure is divided into a number of ram sections (1; 2; 3) arranged consecutively in the direction of advance of a respective workpiece, which ram sections (1; 2; 3) are supported independently from each other and regarding the mass forces occurring during operation, whereby the respective ram height position, the stroke and the lower dead point position of each ram section (1; 2; 3) are settable independently from any other ram section (1; 2; 3), which drive includes a motor (16) and a coupling and brake device (18; 19; 20) housed in a casing (21) and connected via a shafting to the ram structure (1-3) which is divided into a number of individual shaft sections (14; 15) in alignment with the shaft axis and allocated to a respective ram section (1-3), which shaft sections (14; 15) are coupled to each other to rotate with each other, but to be axially and radially displaceable to each other, and one (14) of the shaft sections (14; 15) is coupled to the drive to rotate therewith, but to be axially and radially displaceable thereto, whereby each ram section (1; 2; 3) is pivotally mounted to at least one driving rod (7; 8) and each ram section (1; 2; 3) has an own mass force balancing device (9; 10) allocated thereto, which at least one driving rod (7; 8) and mass force balancing device (9; 10) are drivingly connected to a common shaft section (14; 15) supported at both ends in a frame section (11; 12; 13), which base plate structure is divided into base plate sections (4; 5; 6) allocated to the respective ram sections (1; 2; 3) and supported independently from each other and supported at the frame, and each ram section (1; 2; 3) and the respective base plate section (4; 5; 6) allocated thereto is supported in a frame section (11; 12; 13), whereby adjacent frame sections (11; 12; 13) are rigidly mounted to each other at an area remote from the respective base plate section (4; 5; 6), characterized by a supporting section (22) which is supportable via first supporting columns (25) on a respective floor surface (24), whereby the housing (21) of the coupling and brake device (18; 19; 20) comprises second supporting columns (25), via which same is supportable on the respective floor surface (24), and the respective frame sections (11; 12; 13) are arranged in such a manner between the supporting section (22) and the housing (21) of the coupling and brake device (18; 19; 20) that the supporting section (22) and housing (21), resp. are mounted merely to the respective directly adjacent frame section (11; 13), and each ram section (1; 2; 3) with its mass forces balancing device (9; 10), the thereto belonging base plate section (4; 5; 6) and frame section (11; 12; 13) are designed as independent and in its entirety exchangeable module with at least one own adjusting unit for the setting of the height position of the ram.
EP90120187A 1990-01-30 1990-10-20 Punch press Expired - Lifetime EP0439684B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH296/90 1990-01-30
CH296/90A CH680276A5 (en) 1990-01-30 1990-01-30

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EP0439684A1 EP0439684A1 (en) 1991-08-07
EP0439684B1 true EP0439684B1 (en) 1993-08-04

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EP90120187A Expired - Lifetime EP0439684B1 (en) 1990-01-30 1990-10-20 Punch press

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EP (1) EP0439684B1 (en)
JP (1) JPH03226400A (en)
CH (1) CH680276A5 (en)
DE (1) DE59002205D1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE19853365A1 (en) * 1998-11-19 2000-05-25 Schuler Pressen Gmbh & Co Method and device for forming
DE19853366B4 (en) * 1998-11-19 2007-07-19 Schuler Pressen Gmbh & Co. Kg Apparatus and method for forming

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US5586495A (en) * 1991-12-27 1996-12-24 Kabushiki Kaisha Komatsu Seisakusho Transfer press
US5761994A (en) * 1995-02-02 1998-06-09 Aida Engineering Ltd. Multi-slide mechanical press with phase difference
CN1064310C (en) * 1996-07-03 2001-04-11 Aida(会田)工程技术株式会社 Multi-slide mechanical press
JPH10137984A (en) * 1996-11-11 1998-05-26 Aida Eng Ltd Multi-slide mechanical press
DE19654473A1 (en) 1996-12-27 1998-07-02 Schuler Pressen Gmbh & Co Multi-station press
CH705057B1 (en) * 2003-05-13 2012-12-14 Soudronic Ag Processing device and use thereof for manufacturing lids with peel-off foil.
DE102004027082B3 (en) * 2004-06-02 2006-01-12 Maschinenfabrik Lauffer Gmbh & Co Kg sizing
EP2375102A1 (en) * 2010-04-09 2011-10-12 Bruderer Ag Gear unit and arrangement for a punching press
EP3256273B1 (en) * 2015-02-11 2018-10-17 Bruderer Ag Stamping press arrangement
CN110497469B (en) * 2019-09-19 2021-12-03 Tcl通力电子(惠州)有限公司 Punching device

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DE1959502A1 (en) * 1969-11-27 1971-09-16 Schuler Gmbh L Press with mechanical top drive
DE2165365A1 (en) * 1970-12-31 1972-07-27 Kabushiki Kaisha Komatsu Seisakusho, Tokio Press
DE2657911A1 (en) * 1975-12-26 1977-07-14 Komatsu Mfg Co Ltd TRANSFER PRESS
EP0281777B1 (en) * 1987-02-12 1991-08-28 Bruderer Ag Cutting press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19853365A1 (en) * 1998-11-19 2000-05-25 Schuler Pressen Gmbh & Co Method and device for forming
DE19853366B4 (en) * 1998-11-19 2007-07-19 Schuler Pressen Gmbh & Co. Kg Apparatus and method for forming

Also Published As

Publication number Publication date
CH680276A5 (en) 1992-07-31
DE59002205D1 (en) 1993-09-09
JPH03226400A (en) 1991-10-07
EP0439684A1 (en) 1991-08-07

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