EP0168792B1 - Change plate with tool carriages for automatic punching and bending machine - Google Patents

Change plate with tool carriages for automatic punching and bending machine Download PDF

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Publication number
EP0168792B1
EP0168792B1 EP85108749A EP85108749A EP0168792B1 EP 0168792 B1 EP0168792 B1 EP 0168792B1 EP 85108749 A EP85108749 A EP 85108749A EP 85108749 A EP85108749 A EP 85108749A EP 0168792 B1 EP0168792 B1 EP 0168792B1
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EP
European Patent Office
Prior art keywords
change plate
bores
rows
drive
plate according
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Expired
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EP85108749A
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German (de)
French (fr)
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EP0168792A3 (en
EP0168792A2 (en
Inventor
Adolf Wünsch
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Individual
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Individual
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Priority to AT85108749T priority Critical patent/ATE43262T1/en
Publication of EP0168792A2 publication Critical patent/EP0168792A2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire

Definitions

  • the invention relates to a tool slide unit and its drive-carrying exchangeable plate for punching and bending machines, which can be attached and screwed onto the front of a hollow box with a drive device and which has an upper and a lower bore arrangement, through which the drive shafts of the tool slide units are provided with a pinion protrude through and which has an elongated machining opening located symmetrically between the two bore arrangements in the central region of the removable plate.
  • Such a removable plate is known from DE-A 3200473.
  • the holes are arranged in a circle concentric to the center of the removable plate.
  • the interchangeable plate has proven itself in practice because the interchangeable plate with the tool slide units attached to it can be removed for retrofitting and can be replaced by another previously exchangeable interchangeable plate.
  • the known interchangeable plate is only suitable for hollow boxes that have a central drive gear.
  • the tool slide units can also be arranged radially but parallel to one another. In the latter case, they have to be of different lengths. However, the space for accommodating the units is limited.
  • the surface of the removable plate is only partially used.
  • the object of the invention is to design the known interchangeable plate while maintaining its advantages such that tool slide units of the same length can be used and more units can be installed with the same area of the interchangeable plate.
  • each drive wheel has a hollow toothing in which the pinion of the drive shaft of the tool slide unit engages in terms of drive, and each drive wheel is aligned with a bore in the mounted interchangeable plate and is connected to a coaxial pulley which is wrapped by two belts lying next to one another , which each wrap around one of the two adjacent pulleys.
  • the removable plate which can be used up to the opposite edges, it can have a smaller format than the generic removable plate. This facilitates transportation and assembly. Less space is required for temporary storage in the warehouse. Since all tool slide units are of the same size, upgrading is simplified and storage costs are reduced. This has a particularly favorable effect in the case of exchangeable plates, because - due to the system - a large number is required.
  • the removable plate 10 seen in FIG. 1 forms the side wall of a laterally open hollow box 12 (FIG. 3) of the same format.
  • the exchangeable plate 10 is rectangular and has an upper row of bores 14 and a lower row of bores 16, two bores 14, 16 of the upper and lower rows being aligned vertically. Below each bore 14 or above each bore 16 there are a number of mounting holes 18 for fastening a tool slide unit 20 in each case. Between the two mounting surfaces 22, 24, which have mounting holes 18, for the slide assemblies 20 there is a recessed, rectangular area 26, which extends over the entire length of the plate 10 and which represents a sliding guide for square workpiece carriers 28 (FIG. 6).
  • An elongated machining opening 34 extends parallel to the center between the two rows of holes 14, 16 this over almost the entire length of the removable plate 10, but ends at a distance from the vertical edges of the removable plate, so that the upper and lower half of the removable plate 10 form a coherent stable unit.
  • the processing opening 34 serves to receive the drives for workpiece carriers, center punches, calibration mandrels, ejectors and the like.
  • the carriage assemblies 20 are of conventional design and therefore do not need to be described in detail. From the base plate 36 of the carriage assembly 20, a bearing socket 38 protrudes on the back, in which the drive shaft 40 of the assembly 20, which carries a gear 42, is mounted.
  • the hollow box 12 has an upper bearing beam 44 and a corresponding lower bearing beam, on each of which a number of drive members 46 equal to the number of bores 14, 16 are rotatably mounted.
  • Each drive member 46 consists of a toothed belt pulley 48 and two drive wheels 50 with hollow teeth screwed on both sides, into which the gear wheels 42 of the units 20 are inserted in terms of drive.
  • the toothed belt pulley 48 is wrapped by two toothed belts 52, 54.
  • the toothed belt 52 connects the belt pulley 48 to the belt pulley of the unit 46 adjacent on one side, while the other belt 54 connects to the drive element 46 on the other side.
  • the toothed belts 52, 54 thus wrap around adjacent pulleys with a large wrap angle of 180 °, as a result of which large driving forces can be transmitted.
  • the first pulley 48 of both rows of pulleys is wrapped by a drive belt 56, which is in drive engagement with a pulley 58 of a transmission, which can be coupled to a motor drive.
  • the free areas of the last pulley 48 of the two rows of pulleys can be connected by a synchronizing belt 60, so that a closed gear train results.
  • FIGS. 4 and 5 show an interchangeable plate 10 with a mounted slide assembly 20 in view and in section.
  • FIG. 6 shows an interchangeable plate 11 with assembled slide assemblies 20, which differs from the interchangeable plate 10 in that the machining opening consists of a number of bores 35 separated from one another by vertical webs, the diameters of which are larger than those of the bores 14, 16 and are aligned vertically with them are.
  • a workpiece carrier 28 is assigned to each bore 35.
  • Figure 7 shows a removable plate 10, which consists of an upper half 10a and a lower half 10b.
  • Each of the two plate halves 10a, 10b comprises a full row of bores 14, 16 and half of the central recess 34.
  • the two plate halves 10a, 10b have a common horizontal central dividing line 10c.
  • the exchangeable plate 10 according to FIG. 8 consists of the two plate halves 10d, 10e, each of which has half a set of upper and lower rows of holes and which meet along the dividing line 10f, which runs at right angles to the rows of holes.
  • the box girder 12 consists only of the upper bearing beam 44 and an identical lower bearing beam, both of which are connected to one another by end walls to form a rigid housing which is closed by removable side walls which separate the exchangeable plates 10; 11 form.
  • Each beam consists of two halves that meet in the middle of the bulkhead. In the bearing beam there are bearing holes into which the bearings for the drive members 46 and these are inserted.

Abstract

In an automatic bending machine, a box-like housing is provided in which a central driving wheel is mounted for reciprocating a plurality of slide units fastened at the front wall of the housing. The front wall is a front plate which together with the slide units can be easily removed from the housing and replaced by another one the slide units of which having been set up before at another place. A plurality of interchangeable front plates can be set up with slide units and tools. Each of the front plates is provided for a work piece of predetermined form. The front plates not in use can easily be stored for a repeated use.

Description

Die Erfindung betrifft eine Werkzeugschlitten-Aggregate und deren Antriebe tragende Wechselplatte für Stanz-Biegeautomaten, die an einem Hohlkasten mit Antriebseinrichtung stirnseitig aufsetzbar und anschraubbar ist, die eine obere und eine untere Bohrungsanordnung aufweist, durch die je mit einem Ritzel versehene Antriebswellen der Werkzeugschlitten-Aggregate hindurchragen und die eine im Mittelbereich der Wechselplatte symmetrisch zwischen beiden Bohrungsanordnungen liegende langgestreckte Bearbeitungsöffnung aufweist.The invention relates to a tool slide unit and its drive-carrying exchangeable plate for punching and bending machines, which can be attached and screwed onto the front of a hollow box with a drive device and which has an upper and a lower bore arrangement, through which the drive shafts of the tool slide units are provided with a pinion protrude through and which has an elongated machining opening located symmetrically between the two bore arrangements in the central region of the removable plate.

Eine derartige Wechselplatte ist aus der DE-A 3200473 bekannt. Die Bohrungen sind auf einem zum Zentrum der Wechselplatte konzentrischen Kreis angeordnet. Die Wechselplatte hat sich in der Praxis bewährt, weil zum Umrüsten die Wechselplatte mit den an ihr befestigten Werkzeugschlitten-Aggregaten abgenommen und durch eine vorher aufgerüstete andere Wechselplatte ersetzt werden kann. Die bekannte Wechselplatte ist jedoch nur für Hohlkästen geeignet, die ein zentrales Antriebszahnrad aufweisen. Die Werkzeugschlitten-Aggregate können radial aber auch parallel zueinander angeordnet werden. Im letzteren Fall müssen sie unterschiedlich lang sein. Der Raum zur Unterbringung der Aggregate ist jedoch begrenzt. Die Fläche der Wechselplatte ist nur unvollkommen genutzt.Such a removable plate is known from DE-A 3200473. The holes are arranged in a circle concentric to the center of the removable plate. The interchangeable plate has proven itself in practice because the interchangeable plate with the tool slide units attached to it can be removed for retrofitting and can be replaced by another previously exchangeable interchangeable plate. However, the known interchangeable plate is only suitable for hollow boxes that have a central drive gear. The tool slide units can also be arranged radially but parallel to one another. In the latter case, they have to be of different lengths. However, the space for accommodating the units is limited. The surface of the removable plate is only partially used.

Aufgabe der Erfindung ist es, die bekannte Wechselplatte unter Beibehaltung ihrer Vorteile so auszubilden, dass gleich lange Werkzeugschlitten-Aggregate verwendet werden können und bei gleicher Fläche der Wechselplatte mehr Aggregate montiert werden können.The object of the invention is to design the known interchangeable plate while maintaining its advantages such that tool slide units of the same length can be used and more units can be installed with the same area of the interchangeable plate.

Diese Aufgabe wird dadurch gelöst, dass die beiden Bohrungsanordnungen in Form linearer parallel zueinander verlaufender Bohrungsreihen ausgebildet sind, dass sich die Bearbeitungsöffnung in der Mitte zwischen den Bohrungsreihen und parallel zu diesen erstreckt und im wesentlichen über die ganze Länge der Wechselplatte reicht, dass im Hohlkasten zwei Reihen von Antriebsrädern angeordnet sind, jedes Antriebsrad eine Hohlverzahnung aufweist, in der das Ritzel der Antriebswelle des Werkzeugschlitten-Aggregates antriebsmässig eingreift und jedes Antriebsrad mit einer Bohrung der montierten Wechselplatte ausgerichtet und mit einer koaxialen Riemenscheibe verbunden ist, die von zwei nebeneinander liegenden Riemen umschlungen ist, welche je eine der beiden benachbarten Riemenscheiben umschlingen.This object is achieved in that the two bore arrangements are designed in the form of linear rows of bores running parallel to one another, that the machining opening extends in the middle between the rows of bores and parallel to them and extends essentially over the entire length of the interchangeable plate, that two in the hollow box Rows of drive wheels are arranged, each drive wheel has a hollow toothing in which the pinion of the drive shaft of the tool slide unit engages in terms of drive, and each drive wheel is aligned with a bore in the mounted interchangeable plate and is connected to a coaxial pulley which is wrapped by two belts lying next to one another , which each wrap around one of the two adjacent pulleys.

Die Anordnung von oberen und unteren geradlinigen Bohrungsreihen ist bei Stanz-Biegeautomaten mit nicht auswechselbarer Frontplatte aus der DE-A 3205493 grundsätzlich bekannt. Allerdings sind dort zwei im Abstand angeordnete, feste Bestandteile des Stanz-Biegeautomaten bildende Kästen vorgesehen, in deren nicht wechselbaren Frontwänden die Bohrungen angeordnet sind. Auch erfolgt der Antrieb über Schnek- , HI die aie als Schneckenräder ausgebildeten Ritzel längs eines nur kleinen Umfangsteiles eingreifen.The arrangement of upper and lower rectilinear rows of bores is known in principle from DE-A 3205493 in punching and bending machines with a non-replaceable front panel. However, there are two spaced-apart boxes which form integral parts of the punching and bending machine and in whose non-exchangeable front walls the holes are arranged. The drive is also carried out via Schnek-, HI which engage as pinions designed as worm wheels along only a small circumferential part.

Dank der vollflächigen, bis an die gegenüberliegenden Ränder möglichen Nutzung der Wechselplatte kann diese ein kleineres Format haben, als die gattungsbildende bekannte Wechselplatte. Dies erleichtert den Transport und die Montage. Für die vorübergehende Aufbewahrung im Lager wird weniger Raum beansprucht. Da alle Werkzeugschlitten-Aggregate von gleicher Grösse sind, wird das Aufrüsten vereinfacht und die Lagerhaltungskosten werden gesenkt. Dies wirkt sich gerade bei Wechselplatten besonders günstig aus, weil davon - systembedingt - eine grosse Stückzahl benötigt wird.Thanks to the full-surface use of the removable plate, which can be used up to the opposite edges, it can have a smaller format than the generic removable plate. This facilitates transportation and assembly. Less space is required for temporary storage in the warehouse. Since all tool slide units are of the same size, upgrading is simplified and storage costs are reduced. This has a particularly favorable effect in the case of exchangeable plates, because - due to the system - a large number is required.

Vorteilhafte Ausgestaltungen der Erfindung bilden die Gegenstände der Unteransprüche.Advantageous embodiments of the invention form the subject matter of the subclaims.

Anhand der Zeichnung, die Ausführungsbeispiele zeigt, sei die Erfindung näher erläutert. Es zeigt:

  • Fig. 1 eine Ansicht einer an einer Biegeeinheit befestigten Wechselplatte ohne Werkzeugschlitten-Aggregate,
  • Fig.2 eine Schnittansicht längs der Linie 2-2 der Fig. 1,
  • Fig. eine Schnittansicht durch den oberen Teil der Biegeeinheit mit Wechselplatte und Schlitten-Aggregat längs der Linie 3-3 der Fig. 1,
  • Fig.4 eine Ansicht einer Wechselplatte etwa gemäss Fig. 1 mit angebauten Aggregaten,
  • Fig.5 eine Schnittansicht durch die Wechselplatte längs der Linie 5-5 der Fig. 4,
  • Fig. 6 eine Wechselplatte ähnlich Fig. 4, jedoch mit einer anderen Ausbildung der Bearbeitungsöffnung und aufgebauten Werkzeugträgern,
  • Fig. 7 eine Ansicht einer an einer Biegeeinheit befestigten, horizontal geteilten Wechselplatte und
  • Fig. eine Ansicht ähnlich Fig. 7, jedoch mit vertikal geteilter Wechselplatte.
The invention will be explained in more detail with reference to the drawing, which shows exemplary embodiments. It shows:
  • 1 is a view of a removable plate attached to a bending unit without tool slide units,
  • 2 shows a sectional view along the line 2-2 of FIG. 1,
  • 1 is a sectional view through the upper part of the bending unit with interchangeable plate and slide unit along the line 3-3 of FIG. 1,
  • 4 shows a view of a removable plate, for example according to FIG. 1, with attached units,
  • 5 is a sectional view through the removable plate along the line 5-5 of FIG. 4,
  • 6 shows a removable plate similar to FIG. 4, but with a different design of the machining opening and built-up tool carriers,
  • Fig. 7 is a view of a horizontally divided removable plate attached to a bending unit and
  • Fig. A view similar to Fig. 7, but with a vertically divided removable plate.

Die in Fig. 1 in Ansicht zu sehende Wechselplatte 10 bildet die Seitenwand eines seitlich offenen Hohlkastens 12 (Fig. 3) von gleichem Format. Die Wechselplatte 10 ist rechteckförmig und hat eine obere Reihe von Bohrungen 14 und eine untere Reihe von Bohrungen 16, wobei je zwei Bohrungen 14, 16 der oberen und unteren Reihe vertikal ausgefluchtet sind. Unterhalb jeder Bohrung 14 bzw. oberhalb jeder Bohrung 16 ist eine Anzahl Montagelöcher 18 zur Befestigung jeweils eines Werkzeugschlitten-Aggregates 20 vorgesehen. Zwischen den beiden, die Montagelöcher 18 aufweisenden Befestigungsflächen 22, 24 für die Schlittenaggregate 20 befindet sich ein, über die ganze Länge der Platte 10 reichender vertiefter, rechteckförmiger Bereich 26, der eine Schiebeführung für quadratische Werkstückträger 28 (Fig. 6) darstellt. Diese stützen sich an den beiden Führungsrändern 30, 32 des vertieften Bereiches 26 formschlüssig ab und sind mittels Schrauben an der Platte 10 befestigt. Eine längliche Bearbeitungsöffnung 34 erstreckt sich in der Mitte zwischen beiden Bohrungsreihen 14, 16 parallel zu diesen über nahezu die gesamte Länge der Wechselplatte 10, endet jedoch im Abstand von den Vertikalrändern der Wechselplatte, so dass die obere und die untere Hälfte der Wechselplatte 10 eine zusammenhängende stabile Einheit bilden. Die Bearbeitungsöffnung 34 dient zur Aufnahme der Antriebe für Werkstückträger, Mittelstempel, Kalibrierdorne, Auswerfer und dergl.The removable plate 10 seen in FIG. 1 forms the side wall of a laterally open hollow box 12 (FIG. 3) of the same format. The exchangeable plate 10 is rectangular and has an upper row of bores 14 and a lower row of bores 16, two bores 14, 16 of the upper and lower rows being aligned vertically. Below each bore 14 or above each bore 16 there are a number of mounting holes 18 for fastening a tool slide unit 20 in each case. Between the two mounting surfaces 22, 24, which have mounting holes 18, for the slide assemblies 20 there is a recessed, rectangular area 26, which extends over the entire length of the plate 10 and which represents a sliding guide for square workpiece carriers 28 (FIG. 6). These are positively supported on the two guide edges 30, 32 of the recessed area 26 and are fastened to the plate 10 by means of screws. An elongated machining opening 34 extends parallel to the center between the two rows of holes 14, 16 this over almost the entire length of the removable plate 10, but ends at a distance from the vertical edges of the removable plate, so that the upper and lower half of the removable plate 10 form a coherent stable unit. The processing opening 34 serves to receive the drives for workpiece carriers, center punches, calibration mandrels, ejectors and the like.

Die Schlittenaggregate 20 sind von herkömmlicher Bauart und brauchen deswegen nicht im Detail beschrieben zu werden. Von der Basisplatte 36 des Schlittenaggregates 20 ragt rückseitig ein Lagerstutzen 38 vor, in dem die Antriebswelle 40 des Aggregates 20 gelagert ist, die ein Zahnrad 42 trägt.The carriage assemblies 20 are of conventional design and therefore do not need to be described in detail. From the base plate 36 of the carriage assembly 20, a bearing socket 38 protrudes on the back, in which the drive shaft 40 of the assembly 20, which carries a gear 42, is mounted.

Der Hohlkasten 12 hat einen oberen Lagerbalken 44 und einen entsprechenden unteren Lagerbalken, an welchem je eine Anzahl Antriebsorgane 46 gleich der Anzahl Bohrungen 14, 16 drehbar gelagert ist. Jedes Antriebsorgan 46 besteht aus einer Zahnriemenscheibe 48 und zwei beidseitig angeschraubten Antriebsrädern 50 mit Hohlverzahnung, in die die Zahnräder 42 der Aggregate 20 antriebsmässig eingesteckt sind. Die Zahnriemenscheibe 48 wird von zwei Zahnriemen 52, 54 umschlungen. Der Zahnriemen 52 verbindet die Riemenscheibe 48 mit der Riemenscheibe des auf der einen Seite benachbarten Aggregates 46, während der andere Riemen 54 den Anschluss an das Antriebsorgan 46 auf der anderen Seite herstellt. Die Zahnriemen 52, 54 umschlingen also benachbarte Riemenscheiben mit einem grossen Umschlingungswinkel von 180°, wodurch grosse Antriebskräfte übertragen werden können. Die erste Riemenscheibe 48 beider Riemenscheibenreihen wird von einem Antriebsriemen 56 umschlungen, der mit einer Scheibe 58 eines Getriebes in Antriebseingriff steht, welches mit einem motorischen Antrieb kuppelbar ist. Die freien Bereiche der letzten Riemenscheibe 48 der beiden Riemenscheibenreihen kann durch einen Synchronisierriemen 60 verbunden werden, so dass sich ein geschlossener Getriebezug ergibt.The hollow box 12 has an upper bearing beam 44 and a corresponding lower bearing beam, on each of which a number of drive members 46 equal to the number of bores 14, 16 are rotatably mounted. Each drive member 46 consists of a toothed belt pulley 48 and two drive wheels 50 with hollow teeth screwed on both sides, into which the gear wheels 42 of the units 20 are inserted in terms of drive. The toothed belt pulley 48 is wrapped by two toothed belts 52, 54. The toothed belt 52 connects the belt pulley 48 to the belt pulley of the unit 46 adjacent on one side, while the other belt 54 connects to the drive element 46 on the other side. The toothed belts 52, 54 thus wrap around adjacent pulleys with a large wrap angle of 180 °, as a result of which large driving forces can be transmitted. The first pulley 48 of both rows of pulleys is wrapped by a drive belt 56, which is in drive engagement with a pulley 58 of a transmission, which can be coupled to a motor drive. The free areas of the last pulley 48 of the two rows of pulleys can be connected by a synchronizing belt 60, so that a closed gear train results.

Die Figuren 4 und 5 zeigen eine Wechselplatte 10 mit aufgebauten Schlittenaggregaten 20 in Ansicht und im Schnitt.FIGS. 4 and 5 show an interchangeable plate 10 with a mounted slide assembly 20 in view and in section.

Figur 6 zeigt eine Wechselplatte 11 mit aufgebauten Schlittenaggregaten 20, die sich von der Wechselplatte 10 dadurch unterscheidet, dass die Bearbeitungsöffnung aus einer Anzahl durch Vertikalstege voneinander getrennter Bohrungen 35 besteht, deren Durchmesser grösser als diejenigen der Bohrungen 14, 16 sind und mit diesen vertikal ausgerichtet sind. Jeder Bohrung 35 ist ein Werkstückträger 28 zugeordnet.FIG. 6 shows an interchangeable plate 11 with assembled slide assemblies 20, which differs from the interchangeable plate 10 in that the machining opening consists of a number of bores 35 separated from one another by vertical webs, the diameters of which are larger than those of the bores 14, 16 and are aligned vertically with them are. A workpiece carrier 28 is assigned to each bore 35.

Figur 7 zeigt eine Wechselplatte 10, die aus einer oberen Hälfte 10a und einer unteren Hälfte 10b besteht. Jede der beiden Plattenhälften 10a, 10b umfasst eine volle Bohrungsreihe 14, 16 und die Hälfte der mittigen Aussparung 34. Die beiden Plattenhälften 10a, 10b haben eine gemeinsame horizontale mittige Teilungslinie 10c.Figure 7 shows a removable plate 10, which consists of an upper half 10a and a lower half 10b. Each of the two plate halves 10a, 10b comprises a full row of bores 14, 16 and half of the central recess 34. The two plate halves 10a, 10b have a common horizontal central dividing line 10c.

Die Wechselplatte 10 gemäss Figur 8 besteht aus den beiden Plattenhälften 10d, 10e, die jeweils einen halben Satz oberer und unterer Bohrungsreihen aufweisen und die längs der Teilungslinie 10f zusammenstossen, die rechtwinklig zu den Bohrungsreihen verläuft.The exchangeable plate 10 according to FIG. 8 consists of the two plate halves 10d, 10e, each of which has half a set of upper and lower rows of holes and which meet along the dividing line 10f, which runs at right angles to the rows of holes.

Wie sich aus Fig. 4 ergibt, besteht der Hohlkasten 12 lediglich aus dem oberen Lagerbalken 44 und einem identischen unteren Lagerbalken, die beide durch Stirnwände miteinander zu einem starren Gehäuse verbunden sind, das durch abnehmbare Seitenwände geschlossen ist, die die Wechselplatten 10; 11 bilden. Jeder Lagerbalken besteht aus zwei Hälften, die in der Stirnwandmitte zusammenstossen. Im Lagerbalken befinden sich Lagerbohrungen in die die Lager für die Antriebsorgane 46 und diese selbst eingesetzt sind.4, the box girder 12 consists only of the upper bearing beam 44 and an identical lower bearing beam, both of which are connected to one another by end walls to form a rigid housing which is closed by removable side walls which separate the exchangeable plates 10; 11 form. Each beam consists of two halves that meet in the middle of the bulkhead. In the bearing beam there are bearing holes into which the bearings for the drive members 46 and these are inserted.

Claims (8)

1. A change plate (10; 11) for automatic punching and bending machines, which change plate carries tool carriage units (20) and their drives (40, 42) and which can be placed on the front side of a hollow case (12) with drive equipment (48-54), and is screw-fastenable thereon, and which has an upper and a lower bore arrangement (14; 16), through which project the drive shafts (40) of the tool carriage units (20) which are each provided with a pinion (42); and which has an oblong machining aperture (34; 35) which lies symmetrically between the two bore arrangements (14, 16) in the central region of the change plate (10; 11); characterised in that the two bore arrangements are constructed in the form of rows of bores (14, 16) which extend linearly parallel to one another, and in that the machining aperture (34; 35) extends in the middle between the rows of bores (14, 16) and parallel thereto and substantially over the entire length of the change plate (10; 11); in that in the hollow case (12) two rows of drive wheels (50) are arranged, each drive wheel (50) having a hollow toothing in which the pinion (42) of the drive shaft (40) of the tool carriage unit (20) drivingly engages, and each drive wheel (50) is aligned with a bore (14; 16) of the assembled change plate (10; 11) and is connected with a coaxial belt pulley (48) around which are looped two adjacently-lying belts (52, 54) each of which are looped around one of the two adjacent belt puiicyd (40).
2. A change plate according to Claim 1, characterised in that the machining aperture consists of a plurality of recesses (35) which are equal in size and are separated from one another by wall webs, and each one of which is aligned with two vertically aligned bores (14,16) of the two rows of bores.
3. A change plate according to Claim 1 or 2, characterised in that on the machining aperture (34; 35) there is constructed, extending over its entire length, sliding guide means (30, 32) for workpiece carriers (28) of rectangular format.
4. A change plate according to any one of Claims 1 to 3, which is divided into two halves, characterised in that the dividing line (10c) lies parallel to the rows of bores (14, 16) and bisects the distance by which they are spaced apart.
5. A change plate according to any one of Claims 1 to 3, which is divided into two halves, characterised in that the dividing line (10f) extends at a right angle to the rows of bores (14,16).
6. A change plate according to any one of Claims 1 to 5, characterised in that arranged on both sides of each belt pulley (48) there is in each case a drive wheel (50) which is fixedly connected thereto, and in that the unit (46) which consists of belt pulley (48) and the two drive wheels (50) is mounted rotatably in a bearing beam (44) which extends over the entire length of the hollow case (12).
7. A change plate according to any one of Claims 1 to 6, characterised in that the end belt pulleys (48) arranged on belt pulleys (48) are in each case drivingly connected together at an end of the upper and lower row by means of a synchronising belt (56; 60).
8. A change plate according to any one of Claims 1 to 7, characterised in that the change plate is secured on an upper bearing beam (44) and on an identical lower bearing beam, both of which beams are connected together by opposed end walls so as to form a rigid housing.
EP85108749A 1984-07-14 1985-07-12 Change plate with tool carriages for automatic punching and bending machine Expired EP0168792B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108749T ATE43262T1 (en) 1984-07-14 1985-07-12 TOOL SLIDE UNITS CARRYING REPLACEMENT PLATE FOR PUNCHING AND FORMING MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3425994 1984-07-14
DE3425994A DE3425994C1 (en) 1984-07-14 1984-07-14 Tool slide unit-carrying removable plate for punching and bending machines

Publications (3)

Publication Number Publication Date
EP0168792A2 EP0168792A2 (en) 1986-01-22
EP0168792A3 EP0168792A3 (en) 1986-10-22
EP0168792B1 true EP0168792B1 (en) 1989-05-24

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ID=6240650

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Application Number Title Priority Date Filing Date
EP85108749A Expired EP0168792B1 (en) 1984-07-14 1985-07-12 Change plate with tool carriages for automatic punching and bending machine

Country Status (4)

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US (1) US4643018A (en)
EP (1) EP0168792B1 (en)
AT (1) ATE43262T1 (en)
DE (2) DE3425994C1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE19953284A1 (en) * 1999-11-05 2001-05-10 Kelz & Settele Sondermaschb Stamping, bending and assembling machine, with modules which can be formed into linear chains

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4027900A1 (en) * 1990-09-03 1992-03-05 Adolf Wuensch Stamping and bending machine for wire components - has slide to transfer tools from storage unit to work station
US5836195A (en) * 1997-07-22 1998-11-17 Wu; David Automatic cutter rotating mechanism for wire forming machine
US10843910B2 (en) 2017-09-13 2020-11-24 Ingersoll-Rand Industrial U.S., Inc. Electric powered pneumatic balancer

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
DE2457048A1 (en) * 1974-12-03 1976-06-10 Wolfgang Katz Automatic stamping and bending machines for mfg small parts - using roller chain and chain wheels to actuate tools
DE2741576C2 (en) 1977-09-15 1982-09-30 Otto Bihler Maschinenfabrik Gmbh & Co Kg, 8959 Halblech Processing machine for wire or strip material, in particular automatic punching and bending machines
US4457160A (en) * 1979-06-27 1984-07-03 Wuensch Adolf Automatic punching and bending machine
DE3013460C2 (en) * 1980-04-05 1982-10-07 Adolf 8962 Pfronten Wünsch Bending box for stamping and bending machines for the production of bent parts from wire or strip
DE3200473C1 (en) * 1982-01-09 1991-05-08 Adolf 8962 Pfronten Wünsch Bending unit of an automatic punching and bending machine for small components made of strip or wire bent several times
DE3205493C3 (en) * 1982-02-16 1996-03-21 Otto Bihler Wire and strip processing machine, in particular punching and bending machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19953284A1 (en) * 1999-11-05 2001-05-10 Kelz & Settele Sondermaschb Stamping, bending and assembling machine, with modules which can be formed into linear chains

Also Published As

Publication number Publication date
US4643018A (en) 1987-02-17
ATE43262T1 (en) 1989-06-15
DE3425994C1 (en) 1985-10-17
DE3570378D1 (en) 1989-06-29
EP0168792A3 (en) 1986-10-22
EP0168792A2 (en) 1986-01-22

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