EP0252253A1 - Shifting drive for the clamping implements of presses - Google Patents

Shifting drive for the clamping implements of presses Download PDF

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Publication number
EP0252253A1
EP0252253A1 EP87107114A EP87107114A EP0252253A1 EP 0252253 A1 EP0252253 A1 EP 0252253A1 EP 87107114 A EP87107114 A EP 87107114A EP 87107114 A EP87107114 A EP 87107114A EP 0252253 A1 EP0252253 A1 EP 0252253A1
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EP
European Patent Office
Prior art keywords
slot
drive
slide
toothed belt
tension element
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.)
Granted
Application number
EP87107114A
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German (de)
French (fr)
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EP0252253B1 (en
Inventor
Wilfried Wendland
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MASCHINENFABRIK HILMA GmbH
HILMA MASCHF GmbH
Original Assignee
MASCHINENFABRIK HILMA GmbH
HILMA MASCHF GmbH
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Publication of EP0252253A1 publication Critical patent/EP0252253A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/026—Mounting of dies, platens or press rams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S100/00—Presses
    • Y10S100/918—Bolster and die

Definitions

  • the invention relates to an adjustment drive for slide-in clamps for fastening upper tools under the clamping surface of a press ram with generic features according to the preamble of patent claim 1.
  • slide-in clamps with hydraulically loaded clamping pistons are more common, these hydraulic slide-in clamps not only accelerating the clamping process and clamping the tool more reliably, but above all more precisely, but also the spindle keep clear of the clamping forces so that it can be carried out more easily and is not subject to wear which is caused by the load with the high clamping forces.
  • the object of the invention is to provide a device for the mechanized lateral displacement of each insert clamp in its T-slot in the press ram, which works differently than the previously known, but is simple in construction and can be actuated precisely.
  • a toothed belt with a flat cross section is primarily provided as the tension element. If necessary, flat chains, ropes or the like can also be used.
  • An essential feature of the invention can be seen in the accommodation of the flat tension element between the side surfaces of the sliding block and the T-slot guide. Without impairment and without additional work compared to previous T-slot guides, space can be created for the accommodation of the tension element, without the force-transmitting surfaces on clamping the tool on the top and on the stepped underside of the sliding block having to be designed differently than before.
  • Toothed belts made of a high-strength plastic are particularly suitable, possibly with embedded steel cores, so that the toothed belt is stretch-free in the longitudinal direction, but is otherwise flexible on all sides.
  • Such a toothed belt is inexpensive to manufacture and, if necessary, a commercially available product.
  • an adjustment drive with the training features according to the invention has the advantage of a significantly more cost-effective production, a lower weight and in particular also the more precise positioning of the insert clamp at the desired clamping point.
  • the constructive implementation of the solution according to the invention for the task is carried out either by an endless guide of the toothed belt, the toothed belt at one end of the T-slot guide via the drive pinion of a drive unit fastened there and with the other end via a drive unit there in the T- Groove guide arranged deflection is guided, which thus forms the abutment for the transmission of tensile forces in the toothed belt, or by a finite toothed belt piece, which is attached at its ends to the end of the T-groove guide, so as to form the abutment for the To form tensile forces on the press ram, and which is guided by a drive unit via a drive pinion fixedly connected to the sliding block.
  • the drive unit can be attached to the head end of the T-slot guide on one side, as before, so that the toothed belt extends as an endless loop through the T-slot guide and with its two strands is guided past the sliding block on both sides.
  • the drive unit moves synchronously with the sliding block and the slide-in tensioner during the adjustment movement.
  • the press ram 1 or a comparable component of the press has on the underside a T-slot guide 3 which is open to the clamping surface 1a and into which the insert clamp 4 engages with a sliding block 5 and is guided horizontally back and forth.
  • the insert clamp 4 is designed in the case of the example as a commercially available, preferably hydraulically loaded clamping element and can be moved by horizontal adjustment of the sliding block 5 in the T-groove 2 into the area of the clamping edge 6 of an upper tool 7 or the like, in order to actuate the Clamping element to clamp the clamping edge of the tool.
  • the adjustment drive for the sliding block 5 of the insert a toothed belt 9 together, which is inside the external tensioner 4 is composed of a drive unit 8 and drive unit 8 fastened to the press ram 1 via deflections 10, a drive pinion 11 and a tensioning device 12 is guided endlessly.
  • the toothed belt 9 is guided as a closed horizontal path loop in the T-slot 2 and extends with its two strands between the side surfaces of the sliding block 5 and the opposite side surfaces of the T-slot 2 to one which is supported at the opposite end of the T-slot 2 Deflection 13.
  • the slide-in tensioner 4 or a tensioning element By switching on the drive motor 14, the slide-in tensioner 4 or a tensioning element, which may be designed in a different manner, can be moved from the position shown in full lines to the tensioning position shown in dashed lines and back.
  • An electric motor is just as suitable as the drive motor, as is a drive unit that can be pressurized with a pressure medium.
  • a finite toothed belt piece is attached at one end to the outer end of the T-slot 2 and with the other end to the inner end of the T-slot 2.
  • the toothed belt 9 runs through the drive unit 8, which in this exemplary embodiment is connected to the sliding block 5, so that the drive unit 8 with the drive motor 14 moves together with the tensioning device 4.
  • the application of the features of the invention is also suitable for clamping devices for fastening tools or workpieces on clamping tables or the like, provided that these have the generic training features.
  • the use of the features of the invention is independent of the specific design of the clamping means for holding the tool and also independent of the manner in which these clamping means are operated.

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

Abstract

Verstelleinrichtung für Einschubspanner zur Befestigung von Oberwerkzeugen (7) unter der Aufspannfläche (1a) eines Pressenstößels (1) mit einer T-Nut-Führung (2), in die der Einschubspanner (4) mit einem Nutenstein (5) eingreift und in der er mittels eines Antriebsmotors (14) unter Verwendung eines in Zugrichtung dehnungs- und spielfreien, um seine Längsachse flexiblen Zugelements horizontal beweglich ist, wobei das Zugelement, vorteilhaft ein Zahnriemen (9), entweder als umlaufende, antreibbare Bandschleife in der T-Nut (2) verlegt ist, oder als in seiner Längserstreckung festliegendes Einzeltrum in der T-Nut angeordnet und über ein Laufrad einer mit dem Einschubspanner verbundenen Antriebseinheit geführt ist.Adjustment device for slide-in clamps for fastening upper tools (7) under the clamping surface (1a) of a press ram (1) with a T-slot guide (2) into which the slide-in clamp (4) engages with a sliding block (5) and in which it by means of a drive motor (14) using a pulling element that is free of expansion and play in the pulling direction and flexible about its longitudinal axis, the pulling element, advantageously a toothed belt (9), either as a circumferential, drivable belt loop in the T-groove (2) is laid, or arranged as a single strand fixed in its longitudinal extent in the T-slot and guided over an impeller of a drive unit connected to the slide-in tensioner.

Description

Die Erfindung betrifft einen Verstellantrieb für Einschubspanner zur Befestigung von Oberwerkzeugen unter der Aufspannfläche eines Pressenstößels mit Gattungsmerkmalen nach dem Oberbegriff des Patent­anspruches 1.The invention relates to an adjustment drive for slide-in clamps for fastening upper tools under the clamping surface of a press ram with generic features according to the preamble of patent claim 1.

Die US-PS 3 335 657 zeigt einen solchen Verstellan­trieb, bei dem in der T-Nut eine Spindel gelagert ist, die in einem mechanisch mittels Keilflächen wirksamen Spannkloben eine drehbar, jedoch axial unverschiebbar gelagerte Gewindemutter durchsetzt und mit einem motorischen Antrieb verbunden ist.US Pat. No. 3,335,657 shows such an adjustment drive, in which a spindle is mounted in the T-slot, which passes through a rotatable but axially immovable threaded nut in a clamping block that is mechanically effective by means of wedge surfaces and is connected to a motor drive.

Demgegenüber gebräuchlicher sind Einschubspanner mit hydraulisch beaufschlagten Spannkolben, wobei diese hydraulischen Einschubspanner nicht nur den Spann­vorgang beschleunigen und das Werkzeug sicherer, vor allem aber genauer spannen, sondern auch die Spindel von den Spannkräften freihalten, so daß diese leichter ausgeführt werden kann und keinem Verschleiß unterliegt, der durch die Belastung mit den hohen Spannkräften bedingt ist.In contrast, slide-in clamps with hydraulically loaded clamping pistons are more common, these hydraulic slide-in clamps not only accelerating the clamping process and clamping the tool more reliably, but above all more precisely, but also the spindle keep clear of the clamping forces so that it can be carried out more easily and is not subject to wear which is caused by the load with the high clamping forces.

Aus der DE-OS 35 01 524 sind auch Verstellantriebe für Einschubspanner bekannt, bei denen der Einschub­spanner mittels einer Laschenschubkette mit Antriebs­organen verbunden ist, wobei diese Laschenschub­kette sich mit Führungsgliedern in der T-Nut abstützt, so daß sie Druckkräfte übertragen kann, um die Einschubspanner mit der Laschenschubkette in die Spannposition zu schieben und aus dieser Position wieder herauszuziehen. Zum Antrieb solcher Schubketten sind aus der DE-OS 35 01 524 Zugelemente bekannt, die in einer vertikalen Schleife endlos geführt sind.From DE-OS 35 01 524 adjusting drives for slide-in clamps are also known, in which the slide-in clamp is connected to drive elements by means of a link slide chain, this link slide chain being supported with guide members in the T-slot, so that it can transmit compressive forces to the slide clamps with the link chain in the tensioning position and pull it out of this position. For driving such push chains are known from DE-OS 35 01 524 tension elements that are endlessly guided in a vertical loop.

Aufgabe der Erfindung ist die Schaffung einer Vorrichtung zum mechanisierten seitlichen Verschieben jedes Einschubspanners in seiner T-Nut im Pressenstößel, die anders als die bisher bekannten arbeitet, dabei jedoch einfach aufgebaut und genau betätigbar ist.The object of the invention is to provide a device for the mechanized lateral displacement of each insert clamp in its T-slot in the press ram, which works differently than the previously known, but is simple in construction and can be actuated precisely.

Zur Lösung dieser Aufgabe wird erfindungsgemäß eine Ausbildung mit Merkmalen nach dem Kennzeichen des Patentanspruches 1 vorgeschlagen.To achieve this object, an embodiment with features according to the characterizing part of patent claim 1 is proposed.

Analog zu einer solchen Ausbildung kann die Lösung der Aufgabe auch mit Merkmalen nach dem Patentanspruch 2 erreicht werden.Analogous to such a design, the object can also be achieved with features according to claim 2.

Als Zugelement ist erfindungsgemäß vor allem ein Zahnriemen mit einem flachen Querschnitt vorgesehen. Verwendbar sind gegebenenfalls auch flache Ketten, Seile oder dergleichen. In der Unterbringung des flachen Zugelements zwischen den Seitenflächen des Nutensteines und der T-Nut-Führung ist ein wesentliches Erfindungsmerkmal zu sehen. Ohne Beeinträchtigung und ohne zusätzlichen Arbeitsaufwand gegenüber bisherigen T-Nut-Führungen kann Raum für die Unterbringung des Zugelements geschaffen werden, ohne daß die beim Spannen des Werkzeuges kräfteübertragenden Flächen an der Oberseite und an der abgestuften Unterseite des Nutensteines anders als bisher gestaltet werden müssen.According to the invention, a toothed belt with a flat cross section is primarily provided as the tension element. If necessary, flat chains, ropes or the like can also be used. An essential feature of the invention can be seen in the accommodation of the flat tension element between the side surfaces of the sliding block and the T-slot guide. Without impairment and without additional work compared to previous T-slot guides, space can be created for the accommodation of the tension element, without the force-transmitting surfaces on clamping the tool on the top and on the stepped underside of the sliding block having to be designed differently than before.

Besonders geeignet sind Zahnriemen aus einem hoch­festen Kunststoff, ggf. mit eingebetteten Stahl­seelen, so daß der Zahnriemen in Längsrichtung dehnungsfrei, im übrigen aber allseits flexibel ist. Ein solcher Zahnriemen ist kostengünstig herzustellen und ggf. als handelsübliches Produkt zu erwerben. Gegenüber Verstellantrieben bekannter Bauart hat ein Verstellantrieb mit den erfindungsgemäßen Ausbil­dungsmerkmalen den Vorteil einer wesentlich kosten­günstigeren Herstellung, eines geringeren Gewichts und insbesondere auch der genaueren Positionierung des Einschubspanners an der gewünschten Einspann­stelle. Für die Verbindung des Zahnriemens mit dem Antriebsritzel des motorischen Antriebes empfiehlt sich eine Umschlingung dieses Antriebsritzels um wenigstens ca. 180 Grad, so daß der Zahnriemen mittels Umlenkungen nach Art einer festen Flasche über das Antriebsritzel geführt ist.Toothed belts made of a high-strength plastic are particularly suitable, possibly with embedded steel cores, so that the toothed belt is stretch-free in the longitudinal direction, but is otherwise flexible on all sides. Such a toothed belt is inexpensive to manufacture and, if necessary, a commercially available product. Compared to adjustment drives of a known type, an adjustment drive with the training features according to the invention has the advantage of a significantly more cost-effective production, a lower weight and in particular also the more precise positioning of the insert clamp at the desired clamping point. For the connection of the toothed belt to the drive pinion of the motor drive, it is advisable to wrap this drive pinion by at least approximately 180 degrees, so that the toothed belt is guided over the drive pinion by means of deflections in the manner of a fixed bottle.

Die konstruktive Verwirklichung des erfindungs­gemäßen Lösungsweges für die gestellte Aufgabe erfolgt entweder durch eine Endlosführung des Zahnriemens, wobei der Zahnriemen an dem einen Ende der T-Nut-Führung über das Antriebsritzel einer dort befestigten Antriebseinheit und mit dem anderen Ende über eine dort in der T-Nut-Führung angeordnete Um­lenkung geführt ist, die somit das Widerlager für die Ubertragung der Zugkräfte in dem Zahnriemen bildet, oder durch ein endliches Zahnriemenstück, welches mit seinen Enden jeweils am Ende der T-Nut-Führung befestigt ist, um so das Widerlager für die Zugkräfte am Pressenstößel zu bilden, und welches durch eine Antriebseinheit über ein mit dem Nutenstein fest verbundenes Antriebsritzel geführt ist.The constructive implementation of the solution according to the invention for the task is carried out either by an endless guide of the toothed belt, the toothed belt at one end of the T-slot guide via the drive pinion of a drive unit fastened there and with the other end via a drive unit there in the T- Groove guide arranged deflection is guided, which thus forms the abutment for the transmission of tensile forces in the toothed belt, or by a finite toothed belt piece, which is attached at its ends to the end of the T-groove guide, so as to form the abutment for the To form tensile forces on the press ram, and which is guided by a drive unit via a drive pinion fixedly connected to the sliding block.

Bei der Endlosführung kann die Antriebseinheit -wie bisher- einseitig am Kopfende der T-Nut-Führung befestigt werden, so daß der Zahnriemen sich als endlose Schlinge durch die T-Nut-Führung erstreckt und mit seinen beiden Trums beidseitig an dem Nutenstein vorbeigeführt ist. Bei Verwendung eines endlichen Riemenstückes bewegt sich die Antriebseinheit mit dem Nutenstein und dem Einschubspanner bei der Verstellbewegung synchron.In the case of the endless guide, the drive unit can be attached to the head end of the T-slot guide on one side, as before, so that the toothed belt extends as an endless loop through the T-slot guide and with its two strands is guided past the sliding block on both sides. When using a finite belt piece, the drive unit moves synchronously with the sliding block and the slide-in tensioner during the adjustment movement.

Auf der Zeichnung sind zwei Ausführungsbeispiele der Erfindung dargestellt. Es zeigen:

  • Figur 1 einen vertikalen Teilschnitt durch eine T-Nut-Führung eines Pressenstößels mit dem Einschubspanner und der Antriebsein­heit,
  • Figur 2 eine Draufsicht des Pressenstößels mit der T-Nut entsprechend Figur 1 mit Schnitt durch die Antriebseinheit,
  • Figur 3 eine Seitenansicht des Beispieles nach den Figuren 1 und 2 von links,
  • Figur 4 einen Schnitt entsprechend Figur 1, jedoch bei einem abgeänderten Ausfüh­rungsbeispiel und
  • Figur 5 eine Seitenansicht des Beispieles nach Figur 4 von links mit vertikalem Schnitt durch die Antriebseinheit.
Two exemplary embodiments of the invention are shown in the drawing. Show it:
  • FIG. 1 shows a vertical partial section through a T-slot guide of a press ram with the insert clamp and the drive unit,
  • FIG. 2 shows a top view of the press ram with the T-slot corresponding to FIG. 1 with a section through the drive unit,
  • FIG. 3 shows a side view of the example according to FIGS. 1 and 2 from the left,
  • Figure 4 shows a section corresponding to Figure 1, but in a modified embodiment and
  • Figure 5 is a side view of the example of Figure 4 from the left with a vertical section through the drive unit.

Der Pressenstößel 1 oder ein vergleichbares Bauteil der Presse weist an der Unterseite eine zur Auf­spannfläche 1a offene T-Nut-Führung 3 auf, in die der Einschubspanner 4 mit einem Nutenstein 5 eingreift und darin horizontal hin und her beweglich geführt ist. Der Einschubspanner 4 ist im Falle des Bei­spieles als ein handelsübliches, vorzugsweise hydrau­lisch beaufschlagtes Spannelement gestaltet und kann durch horizontales Verstellen des Nutensteines 5 in der T-Nut 2 bis in den Bereich des Spannrandes 6 eines Oberwerkzeuges 7 oder dergleichen verschoben werden, um durch Betätigung des Spannelements den Spannrand des Werkzeuges festzuklemmen. Der Ver­stellantrieb für den Nutenstein 5 des Einschub­ einem Zahnriemen 9 zusammen, der innerhalb der außen spanners 4 setzt sich aus einer Antriebseinheit 8 und am Pressenstößel 1 befestigten Antriebseinheit 8 über Umlenkungen 10, ein Antriebsritzel 11 und eine Spann­vorrichtung 12 endlos geführt ist. Der Zahnriemen 9 ist als geschlossene horizontale Bahnschleife in der T-Nut 2 geführt und erstreckt sich mit seinen beiden Trums zwischen den Seitenflächen des Nutensteines 5 und den diesen gegenüberliegenden Seitenflächen der T-Nut 2 bis zu einer am gegenüberliegenden Ende der T-Nut 2 gelagerten Umlenkung 13. Durch Einschalten des Antriebsmotors 14 kann der Einschubspanner 4 oder ein ggf. in anderer Weise gestaltetes Spannelement aus der mit vollen Linien dargestellten Position in die mit gestrichelten Linien wiedergegebene Spann­position und zurück bewegt werden. Als Antriebsmotor ist ein Elektromotor ebenso geeignet wie ein mit einem Druckmittel beaufschlagbares Antriebsaggregat.The press ram 1 or a comparable component of the press has on the underside a T-slot guide 3 which is open to the clamping surface 1a and into which the insert clamp 4 engages with a sliding block 5 and is guided horizontally back and forth. The insert clamp 4 is designed in the case of the example as a commercially available, preferably hydraulically loaded clamping element and can be moved by horizontal adjustment of the sliding block 5 in the T-groove 2 into the area of the clamping edge 6 of an upper tool 7 or the like, in order to actuate the Clamping element to clamp the clamping edge of the tool. The adjustment drive for the sliding block 5 of the insert a toothed belt 9 together, which is inside the external tensioner 4 is composed of a drive unit 8 and drive unit 8 fastened to the press ram 1 via deflections 10, a drive pinion 11 and a tensioning device 12 is guided endlessly. The toothed belt 9 is guided as a closed horizontal path loop in the T-slot 2 and extends with its two strands between the side surfaces of the sliding block 5 and the opposite side surfaces of the T-slot 2 to one which is supported at the opposite end of the T-slot 2 Deflection 13. By switching on the drive motor 14, the slide-in tensioner 4 or a tensioning element, which may be designed in a different manner, can be moved from the position shown in full lines to the tensioning position shown in dashed lines and back. An electric motor is just as suitable as the drive motor, as is a drive unit that can be pressurized with a pressure medium.

Bei dem Ausführungsbeispiel nach den Figuren 4 und 5 ist ein endliches Zahnriemenstück mit dem einen Ende am äußeren Ende der T-Nut 2 und mit dem anderen Ende am inneren Ende der T-Nut 2 befestigt. Uber Umlen­kungen 10 und über das Antriebsritzel 11 durchläuft der Zahnriemen 9 die Antriebseinheit 8, die bei diesem Ausführungsbeispiel mit dem Nutenstein 5 ver­bunden ist, so daß sich die Antriebseinheit 8 mit dem Antriebsmotor 14 zusammen mit der Spannvorrichtung 4 bewegt.In the exemplary embodiment according to FIGS. 4 and 5, a finite toothed belt piece is attached at one end to the outer end of the T-slot 2 and with the other end to the inner end of the T-slot 2. Via deflections 10 and via the drive pinion 11, the toothed belt 9 runs through the drive unit 8, which in this exemplary embodiment is connected to the sliding block 5, so that the drive unit 8 with the drive motor 14 moves together with the tensioning device 4.

Die Anwendung der Erfindungsmerkmale ist auch bei Spannvorrichtungen zur Befestigung von Werkzeugen oder Werkstücken auf Spanntischen oder dergleichen geeignet, sofern diese die gattungsmäßigen Aus­bildungsmerkmale aufweisen. Die Verwendung der Er­findungsmerkmale ist unabhängig von der spezifischen Ausbildung der Spannmittel zum Festhalten des Werkzeuges und auch unabhängig von der Art und Weise des Betriebes dieser Spannmittel.The application of the features of the invention is also suitable for clamping devices for fastening tools or workpieces on clamping tables or the like, provided that these have the generic training features. The use of the features of the invention is independent of the specific design of the clamping means for holding the tool and also independent of the manner in which these clamping means are operated.

Claims (5)

1. Verstellantrieb für Einschubspanner zur Befesti­gung von Oberwerkzeugen unter der Aufspannfläche eines Pressenstößels mit einer T-Nut-Führung, in die der Einschubspanner mit einem Nutenstein eingreift und in der er mittels eines Antriebsmotors und unter Verwendung eines in Zugrichtung dehnungs- und spielfreien, um seine Längsachse flexiblen Zugelementes horizontal beweglich ist, dadurch gekennzeichnet, daß das flexible Zugelement (9) als geschlossene horizontale Bahnschleife in der T-Nut liegt, wobei die beiden Trums der Schleife jeweils auf einer Seite zwischen Nutstein (5) und Nutwandung verlaufen, der Nutstein (5) an einem Trum befestigt ist und das Zugelement an einer Umlenkrolle (13) im inneren Bereich der T-Nut-Längserstreckung umgelenkt wird, während es am offenen Ende der T-Nut (2) durch ein in der Bahnschleifenebene liegendes, stationäres Antriebsrad (11) in beiden Richtungen ziehbar ist.1.Adjustment drive for slide-in clamps for fastening upper tools under the clamping surface of a press ram with a T-slot guide, in which the slide-in clamp engages with a sliding block and in which it is free of expansion and play in its direction by means of a drive motor and using a pulling direction The longitudinal axis of the flexible tension element is horizontally movable, characterized in that the flexible tension element (9) lies as a closed horizontal path loop in the T-slot, the two runs of the loop each running on one side between the slot nut (5) and slot wall, the slot nut ( 5) is attached to a run and the tension element is deflected on a deflection roller (13) in the inner region of the T-slot longitudinal extension, while it is passed through at the open end of the T-slot (2) a stationary drive wheel (11) lying in the track loop plane can be pulled in both directions. 2. Verstellantrieb für Einschubspanner nach dem Oberbegriff des Patentanspruches 1, gekennzeichnet durch einen an der inneren oberen Fläche in der T-Nut (2) angeordneten Zahnriemen (9), dessen eines Ende im inneren Bereich der T-Nut-Längserstreckung an der besagten Fläche befestigt ist, der über Umlenkrollen (10) und ein Laufrad (11) einer mit dem Einschubspanner verbundenen Antriebseinheit geführt und am anderen Ende am Nutende befestigt ist, wobei sich die Antriebseinheit samt Einschubspanner mittels eines Laufrades in beiden Richtungen an dem Zahnriemen hin- und herziehen kann.2. adjusting drive for slide-in tensioner according to the preamble of claim 1, characterized by a toothed belt (9) arranged on the inner upper surface in the T-slot (2), one end of which in the inner region of the T-slot longitudinal extension on said surface is fastened, which is guided via deflection rollers (10) and an impeller (11) of a drive unit connected to the slide-in tensioner and fastened at the other end to the groove end, the drive unit and slide-in tensioner being pulled back and forth on the toothed belt in both directions by means of an impeller can. 3. Verstellantrieb nach den Ansprüchen 1 und 2, gekennzeichnet durch einen Zahnriemen (9) flachen Querschnitts als Zugelement.3. Adjustment drive according to claims 1 and 2, characterized by a toothed belt (9) flat cross section as a tension element. 4. Verstellantrieb nach Anspruch 3, dadurch gekenn­zeichnet, daß der Zahnriemen (9) mittels Umlenkungen (10) mit einer Spannvorrichtung (12) in einer festen Flasche über ein Antriebsritzel (11) geführt ist.4. Adjustment drive according to claim 3, characterized in that the toothed belt (9) is guided by means of deflections (10) with a tensioning device (12) in a fixed bottle via a drive pinion (11). 5. Verstellantrieb nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, daß der Zahnriemen (9) über ein an dem einen Ende der T-Nut-Führung am Pressen­stößel (1) gelagertes Antriebsritzel (11) und eine am gegenüberliegenden Ende der T-Nut-Führung (2) gela­gerte Umlenkung (13) geführt ist.5. Adjusting drive according to claims 3 and 4, characterized in that the toothed belt (9) via a drive pinion (11) mounted on one end of the T-slot guide on the press ram (1) and one on the opposite end of the T-slot - Guide (2) mounted deflection (13) is guided.
EP87107114A 1986-05-30 1987-05-16 Shifting drive for the clamping implements of presses Expired - Lifetime EP0252253B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3618286 1986-05-30
DE3618286A DE3618286C1 (en) 1986-05-30 1986-05-30 Adjustment drive for slide-in clamps of presses

Publications (2)

Publication Number Publication Date
EP0252253A1 true EP0252253A1 (en) 1988-01-13
EP0252253B1 EP0252253B1 (en) 1990-07-18

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ID=6301997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107114A Expired - Lifetime EP0252253B1 (en) 1986-05-30 1987-05-16 Shifting drive for the clamping implements of presses

Country Status (4)

Country Link
US (1) US4790174A (en)
EP (1) EP0252253B1 (en)
DE (1) DE3618286C1 (en)
ES (1) ES2016303B3 (en)

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
EP0294765B1 (en) * 1987-06-10 1992-04-01 Siemens Aktiengesellschaft Precision punching machine and associated tool change method
DE4026827C2 (en) * 1990-08-24 1998-11-05 Schloemann Siemag Ag Fastening device for the detachable connection of tool and tool carrier of an upsetting press
US5603237A (en) * 1995-04-19 1997-02-18 The Minster Machine Company Inching drive system for a mechanical punch press
US5715725A (en) * 1996-07-16 1998-02-10 Applied Power Inc. Biaxial travelling clamp for securing a tool to a press
US5694805A (en) * 1996-07-16 1997-12-09 Applied Power Inc. Travelling clamp with removable rails
US20070138724A1 (en) * 2005-12-16 2007-06-21 Black & Decker Clamp Device
JP7407437B2 (en) * 2019-07-24 2024-01-04 パスカルエンジニアリング株式会社 traveling clamp

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GB1479281A (en) * 1974-06-12 1977-07-13 Floyd G Linear actuator mechanisms
FR2382630A1 (en) * 1977-03-01 1978-09-29 Peugeot Aciers Et Outillage Car window winding gear - has two parallel endless toothed belts driven by motor belts which pass over wheels of different diameters mounted on block
GB2089927A (en) * 1980-12-19 1982-06-30 Inventions Ltd Enterprise Device for converting rotary motion into reciprocating motion for driving vehicle headlamp wipers

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US3335657A (en) * 1966-05-26 1967-08-15 Minster Machine Co Press with sliding bolster and die clamp
DE2343682C2 (en) * 1973-08-30 1975-04-30 L. Schuler Gmbh, 7320 Goeppingen Tool changing device on a press
DE2509310A1 (en) * 1975-03-04 1976-09-16 Vyzk Ustav Tvarecich Stroju Press automatic tool changer - horizontal track between press and magazine ensures picking and release of tools
JPS60172429A (en) * 1984-02-17 1985-09-05 Aioi Seiki Kk Side-bent chain system hydraulic cylinder driving type push-pull operating device for tool and the like of working machine
US4698894A (en) * 1984-07-02 1987-10-13 Hubbell-Bell Inc. Quick change die retention apparatus
DE3507912C1 (en) * 1985-03-06 1986-11-13 Maschinenfabrik Hilma Gmbh, 5912 Hilchenbach Device for attaching an upper tool under the clamping surface of a press ram
CH668224A5 (en) * 1985-05-01 1988-12-15 Feintool Int Holding PRESS WITH AN UPPER AND A LOWER PLATE FOR CLAMPING A TOOL PACKAGE.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1479281A (en) * 1974-06-12 1977-07-13 Floyd G Linear actuator mechanisms
FR2382630A1 (en) * 1977-03-01 1978-09-29 Peugeot Aciers Et Outillage Car window winding gear - has two parallel endless toothed belts driven by motor belts which pass over wheels of different diameters mounted on block
GB2089927A (en) * 1980-12-19 1982-06-30 Inventions Ltd Enterprise Device for converting rotary motion into reciprocating motion for driving vehicle headlamp wipers

Also Published As

Publication number Publication date
US4790174A (en) 1988-12-13
ES2016303B3 (en) 1990-11-01
EP0252253B1 (en) 1990-07-18
DE3618286C1 (en) 1987-07-09

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