EP0155332B1 - Intermediate work piece support in a transfer press - Google Patents

Intermediate work piece support in a transfer press Download PDF

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Publication number
EP0155332B1
EP0155332B1 EP84103029A EP84103029A EP0155332B1 EP 0155332 B1 EP0155332 B1 EP 0155332B1 EP 84103029 A EP84103029 A EP 84103029A EP 84103029 A EP84103029 A EP 84103029A EP 0155332 B1 EP0155332 B1 EP 0155332B1
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EP
European Patent Office
Prior art keywords
templates
receiving
lifting device
area
unit according
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
Application number
EP84103029A
Other languages
German (de)
French (fr)
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EP0155332A1 (en
Inventor
Hermann Braun
Helmut Dumschat
Kurt Strommer
Sieghard Müller
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.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by L Schuler GmbH filed Critical L Schuler GmbH
Priority to EP84103029A priority Critical patent/EP0155332B1/en
Priority to DE8484103029T priority patent/DE3473574D1/en
Priority to US06/710,089 priority patent/US4641515A/en
Priority to BR8501137A priority patent/BR8501137A/en
Publication of EP0155332A1 publication Critical patent/EP0155332A1/en
Application granted granted Critical
Publication of EP0155332B1 publication Critical patent/EP0155332B1/en
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, 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
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/04Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • B21D43/057Devices for exchanging transfer bars or grippers; Idle stages, e.g. exchangeable

Definitions

  • the invention relates to a clipboard of the type specified in the preamble of claim 1.
  • transfer presses such as two-column presses and multi-column presses
  • the length of the transfer movement of the workpieces is set via the drive of the transport device.
  • the distance between z. B. the third stage of work and the fourth stage of work in a multi-column press is larger due to the empty stage between two press stands, z. B. twice as large as the distance between the applied by a single plunger and adjacent stages.
  • a deposit is to be provided, in which workpieces can be removed from the transport device in the meantime and can be detected again.
  • JP-A-58 100 927 which forms the preamble of claim I, devices for the intermediate storage of workpieces are shown in the empty stages of a press. These devices include storage templates with a support surface adapted to the underside of the workpiece. The storage templates can be swung up into the support area from the area below. To support a sheet, two storage templates are provided, which are to be locked in the support position after swiveling up.
  • the object of the invention is to provide a clipboard in the area of empty stages in presses of the types specified above, which does not have the disadvantages mentioned, can also be used in presses with a lock case and can be moved in height to the piston stop in order to achieve the desired position of the storage templates.
  • Claim 2 contains an advantageous development of the inventive concept.
  • the further claims contain four preferred embodiments of the invention.
  • Advantages of the invention result from the fact that starting, lifting and lowering of the storage templates is fully automated when changing tools, and there is no need for replacement and readjustment work.
  • the control effort is reduced to a positioning of the storage templates to be lifted and the lifting process against the stop.
  • the clipboard is located between two stands 1 of a press.
  • the transport direction of the workpieces in Figures 1, 3 and 6 is perpendicular to the plane of the drawing; 2, 4 and 5, the direction of transport, which characterizes the direction of the workpiece passage, is indicated by the arrow 2.
  • the over the transport device, of which gripper-carrying rails 3 are shown, optionally into the press, through the press and, if applicable, workpieces 4 guided therefrom are to be deposited in the area between the two stands 1, which are opposite one another transversely to the transport direction 2.
  • support templates 6 are used for support, the support surfaces 7 of which, which can also be of divided design, correspond to the shape in the support area of the underside of the workpiece 4 to be supported.
  • the storage templates can run in their longitudinal extent in the transport direction 2, FIGS. 1 to 4, and also transversely to the transport direction 2, FIGS. 5 and 6.
  • the embodiments show favorable positions of the storage templates 6.
  • the invention is not tied to the indicated lock case 8, its presence and its position.
  • the storage templates 6 are adjustable in height and divided into two groups for supporting the workpieces 4 at a distance from one another. 1 to 4 show storage templates 6, which have pivot bearings 11 on their underside in the end regions 9 (FIGS.
  • a bearing block 13 is articulated, which is guided via guide rails 14 in slide guides 16 of a bearing rail 17 fixed to the frame in FIGS. 1 and 2.
  • the bearing rail 17 can be made in one piece for each bearing side 18, 19 and extends essentially over the entire width / length of the support area / the empty step.
  • the storage sides 18, 19 respectively identify the left and right support sides of the storage templates 6 and their lifting means in FIGS. 2, 4 and 6 or the rear and front support sides in FIGS. 1, 3 and 5. Positions 18 , 19 are only shown in FIG. 2, since the same means are used for both support sides within the respective embodiment.
  • each bearing block 13 there is also a counter bearing surface 21 which interacts with the piston 22 of a working cylinder-piston unit 23 or a corresponding actuating means for lifting.
  • Each working cylinder-piston unit 23, hereinafter referred to as lifting means, is fastened in FIGS. 1 and 2 to a slide 24 which can be moved back and forth in slide rails 26 by means of a spindle 27 in the horizontal direction.
  • the spindle 27 is movable by a motor 28 to the left and to the right.
  • the storage templates 6, which are twice as many as the number of differently shaped workpieces that may have to be produced, are divided into groups (left and right groups in FIGS. 1, 3, 5) in accordance with their support positions.
  • a lifting device 23 is assigned to each end region 9 of each group of storage templates 6. Motor 28, spindles 27 and slide rails 26 are fastened to the bearing rail 17 via bearing brackets 29.
  • a toothed belt drive consisting of toothed belts 31 and toothed wheels 32, 33 is used for synchronous running of the slides 24 on the opposite side of the storage templates 6, or two motors 28 acting on one spindle 27 each are required.
  • the carriage 24 can only be moved if 13 associated query means, z. B. proximity switch 34, the lowered position of all or the position of the two last-used storage templates 6 has been determined.
  • the lifting means 23 are adjusted via the motor-spindle-slide drive, and each piston 22 of the lifting means 23 comes under the counter surface 21 of the storage template 6 to be lifted.
  • the height of the counter surface 21 on the storage templates 6 can be different, so that the lifting means can be moved in different empty paths until it rests on the counter surface.
  • the height of the bearing surface 7 can be adjusted via the overall height of the storage templates 6 and the path of the piston 22 of the lifting means 23 which is still to be moved up to the stop.
  • FIGS. 1 and 2 show the same components as FIGS. 1 and 2, with the difference that the lifting means 23 are arranged fixed to the frame in all (differently shaped) workpieces common support area.
  • Each group of storage templates 6 can be moved horizontally via a spindle drive in order to place the pair of storage templates 6 to be lifted above the lifting means 23.
  • Each group of storage templates 6 is arranged on a common, movable carriage 36, each storage template 6 being mounted for vertical movement in the manner described above.
  • To drive the carriage 36 in z. B. counter-rotating movement is a driven by the motor 28 spindle 30 which is supported in the center in a bearing block 37.
  • Storage templates 6 and their drive and bearing means are supported on the frame side by means of pedestals 38.
  • FIG. 5 and 6 a further simplified embodiment of an intermediate storage is shown, which over bearing rails 39 and support plates 41 on z. B. the lock case 8 is attached.
  • slide guides 42 are provided for the storage templates 6 to be lifted.
  • a counter-surface 21 is arranged on the underside of each storage template 6 with respect to each end region 9.
  • a frame construction consisting of two side supports 43, which are connected to one another via two guide rods 44, is arranged below the storage templates 6. The frame can be lifted and lowered (vertically) by one or more lifting devices 47 fixed to the frame in the area of the side supports 43 in the region of the side supports 43.
  • a spindle 48 which can be driven by the motor 28 is mounted centrally and extending in the longitudinal extent of the intermediate storage.
  • an intermediate member 49 is arranged which can be moved in the longitudinal direction of the frame construction and which interacts with the counter surfaces 21 on the selected storage template 6 when the lifting means 47 is actuated in the manner of lifting the storage template 6.
  • the intermediate member 49 is additionally shown rotated by 90 ° in FIG. 5.
  • Motor 28 and angle encoder 50 can be attached to the overall frame structure to be lifted in accordance with FIGS. 5 and 6 and thus be lifted when lifting a pair of storage templates 6.
  • Motor 28 and angle encoder 50 can, as shown in more detail in FIGS. 5 and 6, be mounted fixed to the frame.
  • sliding blocks 51 are to be provided in the intermediate members 49 as nuts for the spindle 48.
  • the sliding blocks 51 are guided in vertically extending elongated holes 52 of the intermediate links.
  • the side supports 43 accordingly have cutouts 53 for the free passage of the spindle 48.
  • 5 and 6 also include the possibilities of separate drives from z.
  • Each spindle according to this embodiment is mounted parallel to the guide rods 44 and in engagement with one intermediate member 49 per group of storage templates 6 on one bearing side and motor-driven.
  • the spindles 27, 30, 48 in FIGS. 1 to 6 and the further embodiments according to FIGS. 5 and 6 are each provided with a left-hand or right-hand thread starting from one spindle end up to approximately the middle of their length.
  • the rotary angle transmitters 50 shown serve to deliver the rotary position of the spindles (travel distance of the slides 24, 36, 49) of corresponding signals to the press automation for the control and positioning of the motors 28. 5 are used to position tables that can be moved out of the press area and carry the tools.
  • the relative movement - displacement movement - between the storage templates 6 and the lifting means 22, 23, 47 is shown in FIGS. 1 and 2 by the one or two motors 28, the spindles 27 and the slide 24, in FIGS. 3 and 4 by the motor 28, the spindle 30 and the carriage 36 and in FIGS. 5 and 6 by the motor 28, the spindle or spindles 48 and the intermediate members 49.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Description

Die Erfindung betrifft eine Zwischenablage der im Oberbegriff des Anspruchs 1 angegebenen Art. In Transferpressen wie Zweiständerpressen und Mehrständerpressen ist die Länge der Umsetzbewegung der Werkstücke über den Antrieb des Transportgerätes eingestellt. Der Abstand zwischen z. B. der dritten Arbeitsstufe und der vierten Arbeitsstufe in einer Mehrständerpresse ist durch die Leerstufe zwischen zwei Pressenständern größer, z. B. doppelt so groß, als der Abstand zwischen den von einem einzigen Stößel beaufschlagten und benachbarten Arbeitsstufen. In diesem Bereich der Leerstufe ist eine Ablage vorzusehen, in der Werkstücke zwischenzeitlich von dem Transportgerät abgesetzt und wieder erfaßt werden können.The invention relates to a clipboard of the type specified in the preamble of claim 1. In transfer presses such as two-column presses and multi-column presses, the length of the transfer movement of the workpieces is set via the drive of the transport device. The distance between z. B. the third stage of work and the fourth stage of work in a multi-column press is larger due to the empty stage between two press stands, z. B. twice as large as the distance between the applied by a single plunger and adjacent stages. In this area of the empty stage, a deposit is to be provided, in which workpieces can be removed from the transport device in the meantime and can be detected again.

In der Publikation «Einzelpressen und mechanisierte Einzelpressen» von H.L. Hilbert in Blech, Rohre, Profile 26 (1979) 8, Seiten 384 und 385 ist eine Zweiständerpresse beschrieben mit einer in Bild 11 gezeigten Zwischenablage im Bereich der Werkstückausgabe zwischen zwei Pressenständem. Die Zwischenablage weist zwei Ablageschablonen auf, auf die jeweils ein Werkstück über ein Transportgerät abgesetzt und erneut erfaßt wird zur Abgabe an eine der Presse nachgeordnete Lochpresse. Wird für ein neues Werkstück der Werkzeugsatz ausgetauscht, ist auch die Zwischenablage bzw. sind die Ablageschablonen manuell auszutauschen. Befindet sich eine derartige Zwischenablage zwischen zwei Ständern - im Bereich der Leerstufe - einer Mehrständerpresse, ist ein erhöhter Aufwand für den Austausch bei ungünstiger Zugänglichkeit erforderlich.In the publication "Single Presses and Mechanized Single Presses" by H.L. Hilbert in Blech, Rohr, Profile 26 (1979) 8, pages 384 and 385 describes a two-column press with an intermediate storage unit shown in Figure 11 in the area of the workpiece dispenser between two press stands. The clipboard has two storage stencils, onto each of which a workpiece is placed via a transport device and again recorded for delivery to a punch press arranged downstream of the press. If the tool set is replaced for a new workpiece, the clipboard or the storage templates must also be replaced manually. If such a clipboard is located between two stands - in the area of the empty stage - of a multi-column press, an increased effort for the exchange is necessary with poor accessibility.

In der DE-C-32 45 603 wird eine Stufenpresse für Großteile beschrieben mit einer Zwischenablage, die aus mehreren kleinflächigen Tragelementen besteht, die vermittels Kolbenstangen oder Gewindespindeln entsprechend der Gestalt der Unterfläche des Werkstückes höhenanpaßbar sind. Diese Ablage ist auf unterschiedlich geformte Werkstücke einstellbar und somit bei Werkzeugwechsel nicht auszutauschen. Bei Verwendung einer Presse mit Schließkasten zwischen den Pressenständern ist eine solche Ablageeinrichtung aus Platzgründen nicht anwendbar. Die anschlaglose Höheneinstellung jedes Hubkolbens erfordert darüber hinaus einen entsprechend hohen Steuerungsaufwand.In DE-C-32 45 603 a step press for large parts is described with an intermediate storage which consists of several small-area supporting elements which are height-adjustable by means of piston rods or threaded spindles according to the shape of the lower surface of the workpiece. This shelf can be set on differently shaped workpieces and therefore cannot be replaced when changing tools. When using a press with a lock box between the press stands, such a storage device cannot be used for reasons of space. The stroke-free height adjustment of each piston also requires a correspondingly high control effort.

In der den Oberbegriff des Anspruchs I bildenden JP-A-58 100 927 sind in den Leerstufen einer Presse Einrichtungen zur Zwischenablage von Werkstücken gezeigt. Diese Einrichtungen umfassen Ablageschablonen mit der Unterseite des Werkstückes angepaßter Auflagefläche. Die Ablageschablonen sind in den Abstützbereich aus dem darunter befindlichen Bereich hochschwenkbar. Für die Abstützung eines Bleches sind jeweils zwei Ablageschablonen vorgesehen, die nach dem Hochschwenken in der Abstützlage zu arretieren sind.In JP-A-58 100 927, which forms the preamble of claim I, devices for the intermediate storage of workpieces are shown in the empty stages of a press. These devices include storage templates with a support surface adapted to the underside of the workpiece. The storage templates can be swung up into the support area from the area below. To support a sheet, two storage templates are provided, which are to be locked in the support position after swiveling up.

Die Aufgabe der Erfindung liegt in der Schaffung einer Zwischenablage im Bereich von Leerstufen bei Pressen der zuvor angegebenen Arten, die die genannten Nachteile nicht aufweist, auch in Pressen mit Schließkasten einsetzbar ist und zum Erreichen der Sollposition der Ablageschablonen höhenmäßig auf Kolbenanschlag verfahrbar ist.The object of the invention is to provide a clipboard in the area of empty stages in presses of the types specified above, which does not have the disadvantages mentioned, can also be used in presses with a lock case and can be moved in height to the piston stop in order to achieve the desired position of the storage templates.

Diese Aufgabe wird bei einer Zwischenablage der eingangs genannten Art gelöst durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale.This object is achieved with a clipboard of the type mentioned by the features specified in the characterizing part of claim 1.

Anspruch 2 beinhaltet eine vorteilhafte Weiterbildung des Erfindungsgedankens. Die weiteren Ansprüche beinhalten vier bevorzugte Ausführungsformen der Erfindung.Claim 2 contains an advantageous development of the inventive concept. The further claims contain four preferred embodiments of the invention.

Vorteile der Erfindung ergeben sich daraus, daß bei Werkzeugwechsel das Anfahren, Anheben und Absenken der Ablageschablonen vollautomatisiert ist und Auswechsel- und Nachstellarbeiten dabei völlig entfallen. Der Steuerungsaufwand ist reduziert auf eine Positionierung der anzuhebenden Ablageschablonen und den Anhebevorgang gegen Anschlag.Advantages of the invention result from the fact that starting, lifting and lowering of the storage templates is fully automated when changing tools, and there is no need for replacement and readjustment work. The control effort is reduced to a positioning of the storage templates to be lifted and the lifting process against the stop.

Die Erfindung soll im folgenden unter Bezugnahme auf die Ausführungsbeispiele der Zeichnung beschrieben werden. Es zeigen

  • Fig. 1 eine erste Ausführungsform der Erfindung in einer Vorderansicht,
  • Fig. 2 linke Hälfte: einen Teilschnitt entlang der Schnittlinie I-I in Fig.1, rechte Hälfte: einen Teilschnitt entlang der Schnittlinie 11-11 in Fig. 1,
  • Fig. 3 eine zweite Ausführungsform der Erfindung in einer Vorderansicht,
  • Fig. 4 eine Schnittansicht entlang der Schnittlinie IV-IV in Fig. 3,
  • Fig. 5 eine weitere Ausführungsform der Erfindung in einer Vorderansicht und
  • Fig. 6 eine Schnittansicht entlang der Schnittlinie VI-VI in Fig. 5.
The invention will be described below with reference to the embodiments of the drawing. Show it
  • 1 shows a first embodiment of the invention in a front view,
  • 2 left half: a partial section along section line II in FIG. 1, right half: a partial section along section line 11-11 in FIG. 1,
  • 3 shows a second embodiment of the invention in a front view,
  • 4 shows a sectional view along the section line IV-IV in FIG. 3,
  • Fig. 5 shows a further embodiment of the invention in a front view and
  • FIG. 6 is a sectional view along the section line VI-VI in FIG. 5.

Für gleiche Teile in den Figuren sind gleiche Kennziffern verwendet. Die Zwischenablage befindet sich zwischen zwei Ständern 1 einer Presse. Die Transportrichtung der Werkstücke verläuft in den Fig. 1, 3 und 6 senkrecht zur Zeichenebene; in den Fig. 2,4 und 5 ist die Transportrichtung, die die Richtung des Werkstückdurchlaufes charakterisiert, mit dem Pfeil 2 angegeben. Die über das Transportgerät, von dem greifertragende Schienen 3 gezeigt sind, gegebenenfalls in die Presse, durch die Presse und gegebenenfalls aus dieser geführten Werkstücke 4 sind im Bereich zwischen den zwei Ständern 1, die quer zur Transportrichtung 2 einander gegenüberstehen, abzulegen. Zur Abstützung dienen hier Ablageschablonen 6, deren Auflageflächen 7, die auch geteilt ausgeführt sein können, der Form im Abstützbereich der Unterseite des jeweils abzustützenden Werkstückes 4 entsprechen. Die Ablageschablonen können in ihrer Längsausdehnung in Transportrichtung 2, Fig. 1 bis 4, als auch quer zur Transportrichtung 2, Fig. 5 und 6, verlaufen. Die Ausführungsformen zeigen günstige Lagen der Ablageschablonen 6. Die Erfindung ist an den angedeuteten Schließkasten 8, sein Vorhandensein und seine Lage nicht gebunden. In den Figuren sind die Ablageschablonen 6 höhenmäßig verstellbar und in jeweils zwei Gruppen für eine voneinander beabstandete Abstützung der Werkstücke 4 aufgeteilt. Fig. 1 bis 4 zeigen Ablageschablonen 6, die an ihrer Unterseite in den Endbereichen 9 Drehlager 11 aufweisen (Fig. 2 und 4), von denen ein Drehlager in einem sich horizontal erstreckenden Langloch 12 beweglich ist. In jedem Drehlager 11 ist jeweils ein Lagerbock 13 angelenkt, der über Führungsschienen 14 in Gleitführungen 16 einer in Fig. 1 und 2 gestellfesten Lagerschiene 17 geführt ist. Die Lagerschiene 17 kann einteilig je Lagerungsseite 18, 19 ausgeführt sein und erstreckt sich dabei im wesentlichen über die Gesamtbreite/-länge des Abstützbereiches/der Leerstufe. Die Lagerungsseiten 18,19 kennzeichnen jeweils die linke bzw. rechte Abstützseite der Ablageschablonen 6 und deren Hebemittel in den Fig. 2, 4 und 6 bzw. die hinten bzw. vorne befindliche Abstützseite in den Fig. 1, 3 und 5. Die Positionen 18, 19 sind nur in Fig. 2 eingezeichnet, da für beide Abstützseiten innerhalb der jeweiligen Ausführungsform gleiche Mittel verwendet werden. An jedem Lagerbock 13 ist weiterhin eine Gegenlagefläche 21 vorgesehen, die mit dem Kolben 22 einer Arbeits-Zylinder-Kolben-Einheit 23 oder einem dementsprechenden Stellmittel zum Heben zusammenwirkt. Jede Arbeits-Zylinder-Kolben-Einheit 23, im folgenden mit Hebemittel bezeichnet, ist in Fig. 1 und 2 an einem Schlitten 24 befestigt, der in Gleitschienen 26 vermittels einer Spindel 27 in horizontaler Richtung hin- und hergehend bewegbar ist. Die Spindel 27 ist von einem Motor 28 links- und rechtsdrehend bewegbar. Die in doppelter Anzahl zu der Anzahl der möglicherweise zu fertigenden unterschiedlich geformten Werkstücke vorhandenen Ablageschablonen 6 sind entsprechend ihren Abstützlagen in Gruppen (in Fig. 1, 3, 5 jeweils linke und rechte Gruppe) unterteilt. Jedem Endbereich 9 jeder Gruppe Ablageschablonen 6 ist jeweils ein Hebemittel 23 zugeordnet. Motor 28, Spindeln 27 und Gleitschienen 26 sind über Lagerwinkel 29 an der Lagerschiene 17 befestigt. Für einen Synchronlauf der Schlitten 24 an der Gegenseite der Ablageschablonen 6 dient ein Zahnriementrieb aus Zahnriemen 31 und Zahnrädern 32, 33, oder es werden zwei auf jeweils eine Spindel 27 wirkende Motore 28 benötigt.The same reference numbers are used for the same parts in the figures. The clipboard is located between two stands 1 of a press. The transport direction of the workpieces in Figures 1, 3 and 6 is perpendicular to the plane of the drawing; 2, 4 and 5, the direction of transport, which characterizes the direction of the workpiece passage, is indicated by the arrow 2. The over the transport device, of which gripper-carrying rails 3 are shown, optionally into the press, through the press and, if applicable, workpieces 4 guided therefrom are to be deposited in the area between the two stands 1, which are opposite one another transversely to the transport direction 2. Here, support templates 6 are used for support, the support surfaces 7 of which, which can also be of divided design, correspond to the shape in the support area of the underside of the workpiece 4 to be supported. The storage templates can run in their longitudinal extent in the transport direction 2, FIGS. 1 to 4, and also transversely to the transport direction 2, FIGS. 5 and 6. The embodiments show favorable positions of the storage templates 6. The invention is not tied to the indicated lock case 8, its presence and its position. In the figures, the storage templates 6 are adjustable in height and divided into two groups for supporting the workpieces 4 at a distance from one another. 1 to 4 show storage templates 6, which have pivot bearings 11 on their underside in the end regions 9 (FIGS. 2 and 4), of which a pivot bearing is movable in a horizontally extending elongated hole 12. In each rotary bearing 11, a bearing block 13 is articulated, which is guided via guide rails 14 in slide guides 16 of a bearing rail 17 fixed to the frame in FIGS. 1 and 2. The bearing rail 17 can be made in one piece for each bearing side 18, 19 and extends essentially over the entire width / length of the support area / the empty step. The storage sides 18, 19 respectively identify the left and right support sides of the storage templates 6 and their lifting means in FIGS. 2, 4 and 6 or the rear and front support sides in FIGS. 1, 3 and 5. Positions 18 , 19 are only shown in FIG. 2, since the same means are used for both support sides within the respective embodiment. On each bearing block 13 there is also a counter bearing surface 21 which interacts with the piston 22 of a working cylinder-piston unit 23 or a corresponding actuating means for lifting. Each working cylinder-piston unit 23, hereinafter referred to as lifting means, is fastened in FIGS. 1 and 2 to a slide 24 which can be moved back and forth in slide rails 26 by means of a spindle 27 in the horizontal direction. The spindle 27 is movable by a motor 28 to the left and to the right. The storage templates 6, which are twice as many as the number of differently shaped workpieces that may have to be produced, are divided into groups (left and right groups in FIGS. 1, 3, 5) in accordance with their support positions. A lifting device 23 is assigned to each end region 9 of each group of storage templates 6. Motor 28, spindles 27 and slide rails 26 are fastened to the bearing rail 17 via bearing brackets 29. A toothed belt drive consisting of toothed belts 31 and toothed wheels 32, 33 is used for synchronous running of the slides 24 on the opposite side of the storage templates 6, or two motors 28 acting on one spindle 27 each are required.

Die Schlitten 24 sind nur dann verfahrbar, wenn über den Lagerböcken 13 zugeordnete Abfragemittel, z. B. Näherungsschalter 34, die abgesenkte Lage aller oder die Lage der beiden zuletzt verwendeten Ablageschablonen 6 festgestellt worden ist. Bei Anwahl eines Paares Ablageschablonen 6 über die Pressenautomation werden die Hebemittel 23 über den Motor-Spindel-Schlitten-Antrieb verstellt, und es gelangt hierbei jeder Kolben 22 des Hebemittels 23 unter die Gegenlagefläche 21 der anzuhebenden Ablageschablone 6.The carriage 24 can only be moved if 13 associated query means, z. B. proximity switch 34, the lowered position of all or the position of the two last-used storage templates 6 has been determined. When selecting a pair of storage templates 6 via the press automation, the lifting means 23 are adjusted via the motor-spindle-slide drive, and each piston 22 of the lifting means 23 comes under the counter surface 21 of the storage template 6 to be lifted.

Die Höhe der Gegenlagefläche 21 an den Ablageschablonen 6 kann unterschiedlich sein, so daß das Hebemittel in unterschiedlichen Leerwegen bis zur Anlage an den Gegenlageflächen zu verfahren ist. Über die Bauhöhe der Ablageschablonen 6 und den bis zum Anschlag noch zu verfahrenden Weg des Kolbens 22 des Hebemittels 23 ist die Höhe der Auflagefläche 7 einstellbar.The height of the counter surface 21 on the storage templates 6 can be different, so that the lifting means can be moved in different empty paths until it rests on the counter surface. The height of the bearing surface 7 can be adjusted via the overall height of the storage templates 6 and the path of the piston 22 of the lifting means 23 which is still to be moved up to the stop.

Fig. 3 und 4 zeigen gleiche Bauteile wie Fig. 1 und 2 mit dem Unterschied, daß die Hebemittel 23 gestellfest in allen (unterschiedlich geformten) Werkstücken gemeinsamen Abstützbereich angeordnet sind. Dabei ist jede Gruppe an Ablageschablonen 6 für sich horizontal über einen Spindelantrieb verfahrbar, um das anzuhebende Paar Ablageschablonen 6 oberhalb der Hebemittel 23 zu plazieren. Jede Gruppe Ablageschablonen 6 ist hierbei auf einem gemeinsamen, verfahrbaren Schlitten 36 angeordnet, wobei jede Ablageschablone 6 in der zuvor beschriebenen Weise für eine vertikale Bewegung gelagert ist. Zum Antrieb der Schlitten 36 in z. B. gegenläufiger Bewegung dient eine von dem Motor 28 getriebene Spindel 30, die mittig in einem Lagerbock 37 abgestützt ist. Ablageschablonen 6 und deren Antriebs- und Lagermittel sind über Lagerböcke 38 gestellseitig abgestützt.3 and 4 show the same components as FIGS. 1 and 2, with the difference that the lifting means 23 are arranged fixed to the frame in all (differently shaped) workpieces common support area. Each group of storage templates 6 can be moved horizontally via a spindle drive in order to place the pair of storage templates 6 to be lifted above the lifting means 23. Each group of storage templates 6 is arranged on a common, movable carriage 36, each storage template 6 being mounted for vertical movement in the manner described above. To drive the carriage 36 in z. B. counter-rotating movement is a driven by the motor 28 spindle 30 which is supported in the center in a bearing block 37. Storage templates 6 and their drive and bearing means are supported on the frame side by means of pedestals 38.

In den Fig. 5 und 6 ist eine weitere vereinfacht dargestellte Ausführung einer Zwischenablage gezeigt, die über Lagerschienen 39 und Stützbleche 41 an z. B. dem Schließkasten 8 befestigt ist. In den Lagerschienen 39 sind Gleitführungen 42 für die anzuhebenden Ablageschablonen 6 vorgesehen. An der Unterseite jeder Ablageschablone 6 ist in Bezug auf jeden Endbereich 9 eine Gegenlagefläche 21 angeordnet. Unterhalb der Ablageschablonen 6 ist eine Rahmenkonstruktion aus zwei Seitenträgern 43, die untereinander über zwei Führungsstangen 44 verbunden sind, angeordnet. Der Rahmen ist über gestellfeste Gleitführungen 46 im Bereich der Seitenträger 43 von einem oder mehreren gestellfesten Hebemitteln 47 (vertikal) anhebbar und absenkbar. Zentral und sich in Längsausdehnung der Zwischenablage erstreckend ist eine von dem Motor 28 antreibbare Spindel 48 gelagert. Je Gruppe Ablageschablonen 6 ist ein über die Spindel 48 in Längserstreckung der Rahmenkonstruktion bewegbares Zwischenglied 49 angeordnet, das mit den Gegenlageflächen 21 an der angewählten Ablageschablone 6 bei Betätigung des Hebemittels 47 zusammenwirkt im Sinne einer die Ablageschablone 6 anhebenden Weise. Das Zwischenglied 49 ist in Fig. 5 um 90° gedreht zusätzlich eingezeichnet.5 and 6, a further simplified embodiment of an intermediate storage is shown, which over bearing rails 39 and support plates 41 on z. B. the lock case 8 is attached. In the bearing rails 39, slide guides 42 are provided for the storage templates 6 to be lifted. A counter-surface 21 is arranged on the underside of each storage template 6 with respect to each end region 9. A frame construction consisting of two side supports 43, which are connected to one another via two guide rods 44, is arranged below the storage templates 6. The frame can be lifted and lowered (vertically) by one or more lifting devices 47 fixed to the frame in the area of the side supports 43 in the region of the side supports 43. A spindle 48 which can be driven by the motor 28 is mounted centrally and extending in the longitudinal extent of the intermediate storage. For each group of storage templates 6, an intermediate member 49 is arranged which can be moved in the longitudinal direction of the frame construction and which interacts with the counter surfaces 21 on the selected storage template 6 when the lifting means 47 is actuated in the manner of lifting the storage template 6. The intermediate member 49 is additionally shown rotated by 90 ° in FIG. 5.

Motor 28 und Drehwinkelgeber 50 können in Anlehnung an Fig. 5 und 6 an der insgesamt anzuhebenden Rahmenkonstruktion befestigt und so beim Anheben eines Paares Ablageschablonen 6 mit anzuheben sein. Motor 28 und Drehwinkelgeber 50 können, wie es in den Fig. 5 und 6 näher dargestellt ist, gestellfest gelagert sein. Hierzu sind Kulissensteine 51 in den Zwischengliedern 49 als Muttern für die Spindel 48 vorzusehen. Die Kulissensteine 51 sind in sich vertikal erstreckenden Langlöchern 52 der Zwischenglieder geführt. Die Seitenträger 43 weisen dementsprechende Aussparungen 53 auf zum freien Durchtritt der Spindel 48.Motor 28 and angle encoder 50 can be attached to the overall frame structure to be lifted in accordance with FIGS. 5 and 6 and thus be lifted when lifting a pair of storage templates 6. Motor 28 and angle encoder 50 can, as shown in more detail in FIGS. 5 and 6, be mounted fixed to the frame. For this purpose, sliding blocks 51 are to be provided in the intermediate members 49 as nuts for the spindle 48. The sliding blocks 51 are guided in vertically extending elongated holes 52 of the intermediate links. The side supports 43 accordingly have cutouts 53 for the free passage of the spindle 48.

Die Ausführungen in den Fig. 5 und 6 umfassen auch die Möglichkeiten getrennter Antriebe von z. B. vier Zwischengliedern 49 in Führungsstangen 44, die zu diesem Zweck z. B. Flächen- bzw. Mehrflächenführungen aufweisen, wobei die beiden Zwischenglieder 49 einer Lagerungsseite (18, 19 in Fig. 2) über eine Spindel 48 der gezeigten Art in synchroner Weise zu den beiden Zwischengliedern 49 der anderen Lagerungsseite der gezeigten Art, die von einer weiteren Spindel 48 anzutreiben sind, verstellbar sind. Jede Spindel nach dieser Ausführungsform ist parallel zu den Führungsstangen 44 und in Eingriff mit jeweils einem Zwischenglied 49 je Gruppe Ablageschablonen 6 einer Lagerungsseite und motorgetrieben gelagert.5 and 6 also include the possibilities of separate drives from z. B. four links 49 in guide rods 44, z for this purpose. B. surface or multi-surface guides, the two intermediate members 49 of a bearing side (18, 19 in Fig. 2) via a spindle 48 of the type shown in a synchronous manner to the two intermediate members 49 of the other bearing side of the type shown, which of a additional spindle 48 are to be driven, are adjustable. Each spindle according to this embodiment is mounted parallel to the guide rods 44 and in engagement with one intermediate member 49 per group of storage templates 6 on one bearing side and motor-driven.

Die Spindeln 27, 30, 48 in den Fig. 1 bis 6 und den weiteren Ausführungsformen nach den Fig. 5 und 6 sind von jeweils einem Spindelende ausgehend bis etwa zur Mitte ihrer Länge mit links- bzw. rechtsgängigem Gewinde versehen. Die gezeigten Drehwinkelgeber 50 dienen der Abgabe der Drehstellung der Spindeln (Fahrstrecke der Schlitten 24, 36, 49) entsprechender Signale an die Pressenautomation zur Steuerung und Positionierung der Motoren 28. Mit 5 sind aus dem Pressenbereich herausfahrbare, die Werkzeuge tragende Tische positioniert.The spindles 27, 30, 48 in FIGS. 1 to 6 and the further embodiments according to FIGS. 5 and 6 are each provided with a left-hand or right-hand thread starting from one spindle end up to approximately the middle of their length. The rotary angle transmitters 50 shown serve to deliver the rotary position of the spindles (travel distance of the slides 24, 36, 49) of corresponding signals to the press automation for the control and positioning of the motors 28. 5 are used to position tables that can be moved out of the press area and carry the tools.

Die Relativbewegung - Verschiebebewegung - zwischen den Ablageschablonen 6 und den Hebemitteln 22, 23, 47 wird nach Fig. 1 und 2 durch den oder die beiden Motore 28, die Spindeln 27 und den Schlitten 24, in den Fig. 3 und 4 durch den Motor 28, die Spindel 30 und die Schlitten 36 und in den Fig. 5 und 6 durch den Motor 28, die Spindel bzw. Spindeln 48 und die Zwischenglieder 49 bewirkt.The relative movement - displacement movement - between the storage templates 6 and the lifting means 22, 23, 47 is shown in FIGS. 1 and 2 by the one or two motors 28, the spindles 27 and the slide 24, in FIGS. 3 and 4 by the motor 28, the spindle 30 and the carriage 36 and in FIGS. 5 and 6 by the motor 28, the spindle or spindles 48 and the intermediate members 49.

Claims (10)

1. Intermediate receiving unit for essentially large-area workpieces (4) in the area of an empty stage in the workpiece passage (arrow 2), effected by a transporting appliance, through a transfer press, having at least two receiving templates (6) per workpiece (4) of different configuration with a locating surface (7) adapted in the supporting area in accordance with the undersurface of the workpiece (4), wherein the receiving templates (6) can alternatively be moved into the supporting position for the workpieces (4) via an adjusting movement, characterized in that the receiving templates (6) are mounted in such a way that they can move linearly in the vertical direction and can be lifted linearly via at least one lifting device (22, 23; 47), and that adjusting means (28,24,27,30,36,48,49) are arranged
- for a horizontal displacement movement of all receiving templates (6) when the lifting device (22,
23) is mounted in a fixed position,
- for a horizontal displacement movement of the lifting device (22, 23) when the receiving templates
(6) are mounted in a fixed position, and
- for a displacement movement of at least one intermediate member (49) which is mounted in a horizontally displaceable manner between the receiving templates (6) and the lifting device (47) and transmits the vertical movement of the lifting device (47) to the templates (6) to be lifted when the receiving templates (6) and the lifting device (47) are mounted in a fixed position.
2. Intermediate receiving unit according to claim 1, characterized in that receiving templates (6), which in number correspond to the number of different workpieces (4) to be produced in the press are arranged in a group supporting the workpieces in a first area and the same number of receiving templates (6) is arranged in a group supporting the workpieces in a second area remote from the first area, and in that a lifting device (22, 23; 47) is allocated to the end areas (9) of each group of receiving templates (6).
3. Intermediate receiving unit according to claim 2, characterized in that the lifting devices (22, 23) are movably mounted via rail guide means (26) and are adjustable in a synchronous manner relative to one another via at least one adjusting means (24, 27, 28).
4. Intermediate receiving unit according to claim 3, characterized in that the lifting devices (22, 23) are working cylinder-piston units which are mounted on slides (24) which can be driven as adjusting means via a spindle drive (27, 28).
5. Intermediate receiving unit according to claim 2, characterized in that each end (9) of each receiving template (6) is held in one bearing block (13) each, via a pivot bearing (11), one pivot bearing, for compensating lifting strokes executed to a varying extent, being movable in an elongated hole (12) running in the direction of the pivot bearings, that each bearing block (13) is guided in at least one bearing seat (16) extending in he lifting direction, and that each bearing block (13), in the area of the pivot bearing (11), has an abutment face (21) for the lifting device (22, 23) to abut against.
6. Intermediate receiving unit according to claim 2, characterized in that the lifting devices (22, 23) are working cylinder-piston units, arranged so as to be fixed to the frame, that one lifting device (22, 23) each, at the supporting point for the workpiece (4), is allocated to each end area (9) of each group of receiving templates (6), and that each group of reciving templates (6) is adjustable in a synchronous manner relative to one another via at least one adjusting means (28, 30, 36).
7. Intermediate receiving unit according to claim 2, characterized in that an intermediate member (49) which can be moved via an adjusting means (28, 48) into the end area of the receiving template (6) to be lifted is arranged between each end area (9) of each group of receiving templates (6), movable in the vertical direction but otherwise arranged in a fixed manner, and the lifting device or possibly lifting devices (47) arranged so as to be fixed to the frame and designed as working cylinder-piston units, the intermediate members (49) of all end areas being movable in a synchronous manner via the adjusting means (28, 48).
8. Intermediate receiving unit according to claim 2, characterized by one guide rod (44) each, which is allocated to each mounting side (18, 19), extends substantially over the end areas (9) of the receiving templates (6) of both groups and can be lifted by at least one lifting device (47), by one motor-driven spindle (48) each, guided parallel to each guide rod, and by one intermediate member (49) each, which is allocated to each end area of each group of receiving templates (6), can be adjusted by a spindle and can be lifted via the guide rods (44).
9. Intermediate receiving unit according to claim 2, characterized in that each underside of each receiving template (6), in the end areas, has an abutment face (21) against which in each case a lifting device (22,23; 47) can be moved directly or possibly with the imposition of an intermediate member (49), and the abutment face (21) is set vertically in such a way that, when the piston (22) of a lifting device (22, 23) constructed as a working cylinder-piston unit runs against the stop, the supporting height for the locating surface (7) of the receiving template (6) is set.
EP84103029A 1984-03-20 1984-03-20 Intermediate work piece support in a transfer press Expired EP0155332B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP84103029A EP0155332B1 (en) 1984-03-20 1984-03-20 Intermediate work piece support in a transfer press
DE8484103029T DE3473574D1 (en) 1984-03-20 1984-03-20 Intermediate work piece support in a transfer press
US06/710,089 US4641515A (en) 1984-03-20 1985-03-11 Intermediate storage in a transfer press
BR8501137A BR8501137A (en) 1984-03-20 1985-03-14 INTERMEDIATE DEPOSIT IN A TRANSFER PRESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84103029A EP0155332B1 (en) 1984-03-20 1984-03-20 Intermediate work piece support in a transfer press

Publications (2)

Publication Number Publication Date
EP0155332A1 EP0155332A1 (en) 1985-09-25
EP0155332B1 true EP0155332B1 (en) 1988-08-24

Family

ID=8191835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103029A Expired EP0155332B1 (en) 1984-03-20 1984-03-20 Intermediate work piece support in a transfer press

Country Status (4)

Country Link
US (1) US4641515A (en)
EP (1) EP0155332B1 (en)
BR (1) BR8501137A (en)
DE (1) DE3473574D1 (en)

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Also Published As

Publication number Publication date
EP0155332A1 (en) 1985-09-25
BR8501137A (en) 1985-11-12
US4641515A (en) 1987-02-10
DE3473574D1 (en) 1988-09-29

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