EP0623420A1 - Transporting and locating device - Google Patents

Transporting and locating device Download PDF

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Publication number
EP0623420A1
EP0623420A1 EP94102023A EP94102023A EP0623420A1 EP 0623420 A1 EP0623420 A1 EP 0623420A1 EP 94102023 A EP94102023 A EP 94102023A EP 94102023 A EP94102023 A EP 94102023A EP 0623420 A1 EP0623420 A1 EP 0623420A1
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EP
European Patent Office
Prior art keywords
vices
clamping
transport
slide
holding device
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Granted
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EP94102023A
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German (de)
French (fr)
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EP0623420B1 (en
Inventor
Karl-Heinz Strasser
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Handtmann A Punkt Automation GmbH
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Handtmann A Punkt Automation GmbH
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Publication of EP0623420A1 publication Critical patent/EP0623420A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/28—Associations of cutting devices therewith
    • B21D43/285—Devices for handling elongated articles, e.g. bars, tubes or profiles

Definitions

  • the invention relates to a transport and holding device for rod-shaped workpieces, in particular for hollow profiles, which can be fed to a machining center and machined therein.
  • the processing of profiles delivered in bars, which are to be subdivided and processed accordingly in order to cut the cut profile segments z. B. to assemble a window or door frame requires a lot of work and time.
  • the profiles must namely be clamped by means of workpiece clamping devices in the manner of a vice on a machine table provided with T-shaped grooves and / or hole patterns, with which these are to be fed to a machining center or a machine tool.
  • the clamping devices are to be mounted manually on the machine table and positioned in such a way that the profile can also be machined at the intended locations.
  • the object of the invention is therefore to provide a transport and holding device for rod-shaped workpieces, with which it is possible to make a workpiece, for. B. a hollow profile, a machining center, without having to make several reclampings in order to be able to machine the workpiece almost on all sides. Rather, a clamped workpiece should be subdivided and the separated profile segments should be able to be machined at any point, even on the end face, and work processes should not be impeded by clamping devices. These should be arranged briefly in such a way that the profile can be processed freely by the tools. Optimal processing without large waste and longer manual set-up times and the profiles being damaged should therefore be guaranteed. Furthermore, it should be possible to adapt to workpieces to be machined differently without difficulty.
  • a transport and holding device which is characterized by a movable on a stationary mounting rail Carriage and a large number of couplings that can be coupled to this, in which the workpiece is held by means of adjustable clamping jaws, and actuators for opening the clamping jaws and for loosening the connection between the carriage and the vice.
  • the vices should each consist of a stationary clamping jaw and a clamping jaw that can be adjusted perpendicularly to the slide by the force of a spring, which should be actuable individually and / or together by servo devices that can be acted upon by pressure medium against the force of the spring.
  • a collet and a servo device for actuating the adjustable jaws of the vices and / or two or more collets with a lateral spacing from one another and preferably mutually adjustable laterally next to the mounting rail, preferably opposite one another.
  • a servo device should be provided outside of the machining center next to the mounting rail, by means of which the clamping sticks coupled to the slide can be actuated together.
  • a transport and holding device for rod-shaped workpieces according to the invention in which a movable slide, a plurality of clamping sticks which can be coupled with this and also actuators associated therewith are provided, it is possible to insert a workpiece into these by opening all the necessary clamping sticks together and to be fed to the machining center by means of the slide, but since the vices can be decoupled from the slide and can also be opened individually, it is also possible with the help of the control of the machining center without difficulty and at short notice to separate separated profile segments and each of the vices onto the workpiece and / or let its parts act so that the workpiece or workpiece segments can be processed unhindered at the intended location.
  • the device shown schematically in FIGS. 1 and 2 and designated 1 serves for the transport of rod-shaped workpieces, for example a hollow profile 4, to a machining center 2 and for holding even during a machining process and essentially consists of a carriage which can be moved on a fixedly arranged rail 10 11, a large number of vices 21 and actuators for these in the form of servo devices 31, 41 and 51 which can be actuated by a pressure medium and are attached laterally next to the rail 10 Vices 21 for inserting the workpiece 4 are opened together, the servo device 41 is used to open one vise 21 at a time. And the two servo devices 51 can be used to release the connection between a vise 21 and the slide 11.
  • a support plate 24 provided with grooves 24 ' is held to be displaceable to a limited extent in its axial direction, in the grooves 24' of which the clamping jaws 23 can be used alternately depending on the width of the workpiece to be clamped.
  • the compression spring 29 acts on the support plate 24 via an intermediate piece 30.
  • the attachment piece 30 is firmly connected to the support plate 24 and passes through the tube 25, into which longitudinal slots 25 'are incorporated.
  • the clamping force of the compression spring 29 is thus transmitted to the support plate 24 and from this to the clamping jaws 23.
  • the pressure medium consisting of a hydraulic cylinder 42 with pistons inserted in these pistons is to be supplied so that the piston rod 43 on the intermediate piece 30, to which a roller 30 'is attached can act.
  • the vices 21 are detachably connected to the slide 11 by a clamp connection.
  • a guide rail 12 which has wedge surfaces 13 and 13 ', is fastened to it by means of screws 14, and a clamping piece 26 is attached to the pipe 25, which carries a further clamping piece 27 which can be pivoted about a bolt 28. Due to the force of a compression spring 29 'acting on the clamping piece 27 and supported on the clamping piece 26, the clamping piece 27 with the clamping surface 27' is pressed against the clamping piece 13, so that the vice 23 is carried along by the slide 11 when the slide 11 is moved.
  • the clamping connection between the clamping piece 21 and the slide 11 is released by means of the servo device 51 designed as a collet 52.
  • the piston rod 54 of a piston which can be acted upon by a pressure medium and acts on a cylinder 53 acts on the collet 52, by means of which the clamping lever 27 rotatably mounted on the bolt 28 can be pivoted and can thus be released from the clamping piece 13.
  • a workpiece 4 is to be machined in the machining center 2 by means of the tools inserted in a tool carrier 3, then first of all, by means of the servo device 31, which in the exemplary embodiment shown is designed as a plate 32 adjustable by a hydraulic cylinder 33 provided with a piston, are all separate to open vices 21 located outside the machining center 2.
  • the servo device 31 acts on the intermediate pieces 30, so that the clamping jaws 23 are displaced to the right against the force of the spring 29 and the workpiece 4 can be inserted.
  • the jaws 23 are on the Align the width of the workpiece 4.
  • the clamping jaws 23 are pressed against the workpiece 4 by the force of the compression spring 29.
  • the slide 11 is then fed to the tool carrier 3 in a controlled manner and the workpiece 4 is, for example, as shown in FIG. 2, divided into two tool segments 4 ′ and 4 ′′.
  • the workpiece segments 4 'and 4' 'must be separated. This is accomplished in such a way that with the help of the servo devices 41 and / or 51 arranged opposite one another in the machining center 2 and a controlled method of the slide 11, in which the connections between a vice 21 and the respective workpiece segment 4 'or 4 '' and between the vice 21 and the slide 10 are solved, the vices 21 are positioned accordingly with respect to the workpiece segments 4 'and 4' '.
  • the two servo devices 51 are to be arranged at such a distance from one another that at least the vices 21 acting on one of the workpiece segments 4 ', 4' 'can be actuated by the servo devices 51.

Abstract

A transporting and locating device (1) for bar-shaped workpieces (4) which can be fed to a machining centre (2) and are to be machined in the latter consists of a slide (11) traversable on a fixed rail (10), and a multiplicity of vices (21) which can be coupled to the slide (11) and in which the workpiece (4) is held by means of adjustable gripping jaws (22, 23), and actuating members (servo means 31, 41, 51) for opening the gripping jaws (22, 23) and for releasing the connection between the slide (11) and the vices (21). This configuration, by joint opening of all requisite vices (21), enables the workpiece (4) to be inserted into the vices (21) and fed to the machining centre (2) by means of the slide (11). Furthermore, the vices (21) can be uncoupled from the slide (11) and can also be opened individually, so that cut-off profile segments can be individually separated and the workpiece (4) can be machined at intended locations. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Transport- und Haltevorrichtung für stangenförmige Werkstücke, insbesondere für Hohlprofile, die einem Bearbeitungszentrum zuführbar und in diesem zu bearbeiten sind.The invention relates to a transport and holding device for rod-shaped workpieces, in particular for hollow profiles, which can be fed to a machining center and machined therein.

Die Bearbeitung von in Stangen angelieferten Profilen, die zu unterteilen und entsprechend zu bearbeiten sind, um die abgelängten Profilsegmente z. B. zu einem Fenster- oder Türrahmen zusammensetzen zu können, erfordert einen erheblichen Arbeits- und Zeitaufwand. Die Profile müssen nämlich mittels Werkstückspannvorrichtungen nach Art eines Schraubstockes auf einem mit T-förmigen Nuten und/oder Lochbildern versehenen Maschinentisch, mit dem diese einem Bearbeitungszentrum oder einer Werkzeugmaschine zuzuführen sind, aufgespannt werden. Hierbei sind die Spannvorrichtungen auf dem Maschinentisch manuell zu montieren und in der Weise zu positionieren, daß das Profil an den vorgesehenen Stellen auch bearbeitet werden kann. Die Positionen der einzelnen Spannvorrichtungen können aber, da diese nur entsprechend den vorgegebenen T-Nuten bzw. Lochbildern auf dem Maschinentisch anzuordnen sind, nicht für alle Arbeitsvorgänge im voraus festgelegt werden, nachträgliche Ausrichtarbeiten sind somit unumgänglich. Diese Umspannungen bedingen wiederum einen mitunter großen zusätzlichen Aufwand, auch ist, da zum Umsetzen der Spanneinrichtungen das Bearbeitungszentrum oder die Werkzeugmaschine stillzusetzen ist, eine kontinuierliche Bearbeitung nicht zu bewerkstelligen. Des weiteren ist von Nachteil, daß die Ausschußquote aufgrund der mehrmaligen Lageänderungen der meist farbbeschichteten Profile auf dem Maschinentisch hoch ist und daß ein größerer Verschnitt in Kauf genommen werden muß.The processing of profiles delivered in bars, which are to be subdivided and processed accordingly in order to cut the cut profile segments z. B. to assemble a window or door frame requires a lot of work and time. The profiles must namely be clamped by means of workpiece clamping devices in the manner of a vice on a machine table provided with T-shaped grooves and / or hole patterns, with which these are to be fed to a machining center or a machine tool. In this case, the clamping devices are to be mounted manually on the machine table and positioned in such a way that the profile can also be machined at the intended locations. However, the positions of the individual clamping devices cannot be determined in advance for all work processes since they can only be arranged on the machine table in accordance with the specified T-slots or hole patterns subsequent alignment work is therefore unavoidable. These reclampings in turn require a great deal of additional effort, and since the machining center or the machine tool has to be shut down to implement the clamping devices, continuous machining cannot be accomplished. Another disadvantage is that the reject rate is high due to the repeated changes in position of the mostly color-coated profiles on the machine table and that a larger waste must be accepted.

Aufgabe der Erfindung ist es daher, eine Transport- und Haltevorrichtung für stangenförmige Werkstücke zu schaffen, mit der es möglich ist, ein Werkstück, z. B. ein Hohlprofil, einem Bearbeitungszentrum zuzuführen, ohne daß, um das Werkstück nahezu allseitig bearbeiten zu können, mehrmalige Umspannungen vorzunehmen sind. Ein aufgespanntes Werkstück soll vielmehr unterteilt und die abgetrennten Profilsegmente sollen an beliebigen Stellen, und zwar auch stirnseitig bearbeitet werden können, dabei sollen Arbeitsvorgänge durch Spanneinrichtungen nicht behindert werden. Diese sollen kurzzeitig jeweils derart anzuordnen sein, daß durch die Werkzeuge das Profil ungehindert zu bearbeiten ist. Eine optimale Bearbeitung, ohne daß ein größerer Verschnitt sowie längere manuell bedingte Rüstzeiten anfallen und die Profile beschädigt werden, soll demnach gewährleistet sein. Des weiteren soll eine Anpassung an unterschiedlich zu bearbeitende Werkstücke ohne Schwierigkeiten vorgenommen werden können.The object of the invention is therefore to provide a transport and holding device for rod-shaped workpieces, with which it is possible to make a workpiece, for. B. a hollow profile, a machining center, without having to make several reclampings in order to be able to machine the workpiece almost on all sides. Rather, a clamped workpiece should be subdivided and the separated profile segments should be able to be machined at any point, even on the end face, and work processes should not be impeded by clamping devices. These should be arranged briefly in such a way that the profile can be processed freely by the tools. Optimal processing without large waste and longer manual set-up times and the profiles being damaged should therefore be guaranteed. Furthermore, it should be possible to adapt to workpieces to be machined differently without difficulty.

Gemäß der Erfindung wird dies mit einer Transport- und Haltevorrichtung erreicht, die gekennzeichnet ist durch einen auf einer ortsfesten Tragschiene verfahrbaren Schlitten und einer Vielzahl mit diesem koppelbaren Spannstöcken, in denen das Werkstück mittels zustellbarer Spannbacken gehalten ist, und Betätigungsgliedern zum Öffnen der Spannbacken sowie zum Lösen der Verbindung zwischen dem Schlitten und den Spannstöcken.According to the invention, this is achieved with a transport and holding device, which is characterized by a movable on a stationary mounting rail Carriage and a large number of couplings that can be coupled to this, in which the workpiece is held by means of adjustable clamping jaws, and actuators for opening the clamping jaws and for loosening the connection between the carriage and the vice.

Zweckmäßig ist es hierbei, den Schlitten mit einer mit Keilflächen versehenen Führungsschiene zu versehen, an der die Spannstöcke mittels Klemmstücken arretierbar sind, und zum Lösen der Klemmverbindung eine auf einen Klemmbacken einwirkende durch Druckmittel betätigbare Spannzange als Servoeinrichtung vorzusehen, die achssenkrecht zu der Tragschiene seitlich neben dieser angeordnet ist.It is expedient to provide the slide with a guide rail provided with wedge surfaces on which the vices can be locked by means of clamping pieces, and to release the clamping connection to provide a collet acting on a clamping jaw by pressure medium as a servo device, which is perpendicular to the side of the mounting rail next to it this is arranged.

Die Spannstöcke sollten jeweils aus einem ortsfest angeordneten Spannbacken und einem durch die Kraft einer Feder achssenkrecht zu dem Schlitten verstellbaren Spannbacken bestehen, die einzeln und/oder gemeinsam durch von Druckmittel beaufschlagbare Servoeinrichtungen entgegen der Kraft der Feder betätigbar sein sollte.The vices should each consist of a stationary clamping jaw and a clamping jaw that can be adjusted perpendicularly to the slide by the force of a spring, which should be actuable individually and / or together by servo devices that can be acted upon by pressure medium against the force of the spring.

Des weiteren ist es angebracht, vorzugsweise innerhalb des Bearbeitungszentrums einander gegenüberliegend eine Spannzange sowie eine Servoeinrichtung zur Betätigung der verstellbaren Spannbacken der Spannstöcke und/oder zwei oder mehrere Spannzangen mit seitlichem Abstand zueinander und vorzugsweise gegeneinander verstellbar seitlich neben der Tragschiene anzuordnen. Und um ein Werkstück in mehrere Spannstücke einlegen zu können, sollte eine außerhalb des Bearbeitungszentrums neben der Tragschiene angeordnete Servoeinrichtung vorgesehen sein, mittels der mit dem Schlitten gekoppelte Spannstöcke gemeinsam betätigbar sind.Furthermore, it is appropriate to arrange a collet and a servo device for actuating the adjustable jaws of the vices and / or two or more collets with a lateral spacing from one another and preferably mutually adjustable laterally next to the mounting rail, preferably opposite one another. And in order to be able to insert a workpiece into several clamping pieces, a servo device should be provided outside of the machining center next to the mounting rail, by means of which the clamping sticks coupled to the slide can be actuated together.

Wird eine Transport- und Haltevorrichtung für stangenförmige Werkstücke gemäß der Erfindung ausgebildet, in dem ein verfahrbarer Schlitten, eine Vielzahl mit diesem koppelbare Spannstöcke sowie diesen zugeordnete Betätigungsglieder vorgesehen werden, so ist es möglich, durch gemeinsames Öffnen aller erforderlichen Spannstöcke ein Werkstück in diese einzulegen und mittels des Schlittens dem Bearbeitungszentrum zuzuführen Da aber die Spannstöcke von dem Schlitten entkoppelt und auch einzeln geöffnet werden können, ist es ferner mit Hilfe der Steuerung des Bearbeitungszentrums ohne Schwierigkeiten und kurzfristig möglich, abgetrennte Profilsegmente zu vereinzeln und die Spannstöcke jeweils derart auf das Werkstück und/oder dessen Teile einwirken zu lassen, daß das Werkstück bzw. Werkstücksegmente ungehindert an der vorgesehenen Stelle bearbeitet werden können. Durch Verstellbewegungen des Schlittens, Öffnen der Klemmverbindungen zwischen den Spannstöcken und dem Schlitten sowie Öffnen der Spannstöcke, wobei die einzelnen Vorgänge aufeinander abgestimmt vorzunehmen sind, können nämlich abgetrennte Werkstückteile zueinander versetzt und die Positionen der Spannstöcke können verändert werden.If a transport and holding device for rod-shaped workpieces according to the invention is formed, in which a movable slide, a plurality of clamping sticks which can be coupled with this and also actuators associated therewith are provided, it is possible to insert a workpiece into these by opening all the necessary clamping sticks together and to be fed to the machining center by means of the slide, but since the vices can be decoupled from the slide and can also be opened individually, it is also possible with the help of the control of the machining center without difficulty and at short notice to separate separated profile segments and each of the vices onto the workpiece and / or let its parts act so that the workpiece or workpiece segments can be processed unhindered at the intended location. By adjusting the slide, opening the clamping connections between the vices and the slide and opening the vices, the individual operations being carried out in a coordinated manner, separate parts of the workpiece can be offset from one another and the positions of the vices can be changed.

Der dazu erforderliche Bau- und Steuerungsaufwand ist gering, da die CNC-Achse des Bearbeitungszentrums als Arbeits- und Positionierachse für die Spannstöcke mit verwendet werden. Ein Verschnitt sowie Ausschuß sind bei der in dieser Weise zu bewerkstelligenden Zuführung und Halterung eines Werkstückes nicht in Kauf zu nehmen, auch werden Beschädigungen der meist lackierten Werkstücksegmente weitgehend vermieden. Und da keine manuellen Umsetzungen vorzunehmen sind, sind auch die Rüstzeiten äußerst klein. Mit Hilfe der vorschlagsgemäß ausgebildeten Transport- und Haltevorrichtung sind demnach stangeförmige Werkstücke von nahezu allen Seiten auf sehr wirtschaftliche Weise zu bearbeiten.The construction and control effort required for this is low, since the CNC axis of the machining center is also used as the working and positioning axis for the vices. A waste and rejects are not to be accepted in the way of feeding and holding a workpiece in this manner, and damage to the mostly painted workpiece segments is largely avoided. And there are none manual implementation, the set-up times are extremely short. With the help of the proposed transport and holding device, rod-shaped workpieces can therefore be machined from almost all sides in a very economical manner.

In der Zeichnung ist ein Ausführungsbeispiel der gemäß der Erfindung ausgebildeten Transport- und Haltevorrichtung für stangenförmige Werkstücke dargestellt, das nachfolgend im einzelnen erläutert ist. Hierbei zeigen:

Figur 1
die Transport- und Haltevorrichtung in Draufsicht, vor Beginn eines Arbeitsvorganges,
Figur 2
die Transport- und Haltevorrichtung nach Figur 1 während einer stirnseitigen Bearbeitung eines Werkstücksegmentes, jeweils in schematischer Darstellung, und
Figur 3
einen Schnitt nach der Linie III - III der Figur 1.
In the drawing, an embodiment of the transport and holding device for rod-shaped workpieces designed according to the invention is shown, which is explained in detail below. Here show:
Figure 1
the transport and holding device in plan view, before the start of a work process,
Figure 2
the transport and holding device according to Figure 1 during end machining of a workpiece segment, each in a schematic representation, and
Figure 3
a section along the line III - III of Figure 1.

Die in Figur 1 und 2 schematisch dargestellte und mit 1 bezeichnete Vorrichtung dient zum Transport von stangenförmigen Werkstücken, beispielsweise eines Hohlprofils 4, zu einem Bearbeituungszentrum 2 sowie zur Halterung auch während eines Bearbeitungsvorganges und besteht im wesentlichen aus einem auf einer ortsfest angeordneten Schiene 10 verfahrbaren Schlitten 11, einer Vielzahl von Spannstöcken 21 sowie Betätigungsgliedern für diese in Form von seitlich neben der Schiene 10 angebrachten von einem Druckmedium betätigbaren Servoeinrichtungen 31, 41 und 51. Mit Hilfe der Servoeinrichtung 31 können mehrere Spannstöcke 21 zum Einlegen des Werkstückes 4 gemeinsam genöffnet werden, die Servoeinrichtung 41 dient zum Öffnen jeweils eines Spannstockes 21. Und durch die beiden Servoeinrichtungen 51 kann jeweils die Verbindung zwischen einem Spannstock 21 und dem Schlitten 11 gelöst werden.The device shown schematically in FIGS. 1 and 2 and designated 1 serves for the transport of rod-shaped workpieces, for example a hollow profile 4, to a machining center 2 and for holding even during a machining process and essentially consists of a carriage which can be moved on a fixedly arranged rail 10 11, a large number of vices 21 and actuators for these in the form of servo devices 31, 41 and 51 which can be actuated by a pressure medium and are attached laterally next to the rail 10 Vices 21 for inserting the workpiece 4 are opened together, the servo device 41 is used to open one vise 21 at a time. And the two servo devices 51 can be used to release the connection between a vise 21 and the slide 11.

Die Spannstöcke 21 bestehen, wie dies insbesondere der Figur 3 zu entnehmen ist, aus einem ortsfesten Spannbacken 22 sowie einem gegenüber diesem verstellbaren Spannbacken 23, der durch die Kraft einer in einem mit dem Spannbacken 22 fest verbundenen Rohr 25 eingesetzten und somit an diesem abgestützten Druckfeder 29 gegen das Werkstück 4 preßbar ist. Auf dem Rohr 25 ist eine mit Nuten 24' versehene Auflageplatte 24 in dessen Achsrichtung begrenzt verschiebbar gehalten, in deren Nuten 24' je nach der Breite des einzuspannenden Werkstückes der Spannbacken 23 wechselweise eingesetzt werden kann.The vices 21, as can be seen in particular in FIG. 3, consist of a stationary clamping jaw 22 and a clamping jaw 23 which is adjustable relative to the latter, which is inserted by the force of a compression spring which is inserted in a tube 25 which is firmly connected to the clamping jaw 22 and is thus supported on the latter 29 can be pressed against the workpiece 4. On the tube 25, a support plate 24 provided with grooves 24 'is held to be displaceable to a limited extent in its axial direction, in the grooves 24' of which the clamping jaws 23 can be used alternately depending on the width of the workpiece to be clamped.

Die Druckfeder 29 wirkt über ein Zwischenstück 30 auf die Auflageplatte 24 ein. Um dies zu bewerkstelligen, ist das Ansatzstück 30 fest mit der Auflageplatte 24 verbunden und durchgreift das Rohr 25, in das dazu Längsschlitze 25' eingearbeitet sind. Die Spannkraft der Druckfeder 29 wird somit auf die Auflageplatte 24 und von dieser auf den Spannbacken 23 übertragen. Und um den Spannbacken 23 entgegen der Spannkraft der Druckfeder 29 nach rechts verschieben und somit den Spannstock 21 öffnen zu können, ist der aus einem Hydraulikzylinder 42 mit in diesen eingesetzten Kolben bestehenden Servoeinrichtung 41 Druckmittel zuzuführen, so daß die Kolbenstange 43 auf das Zwischenstück 30, an dem dazu eine Rolle 30' angebracht ist, einwirken kann.The compression spring 29 acts on the support plate 24 via an intermediate piece 30. In order to accomplish this, the attachment piece 30 is firmly connected to the support plate 24 and passes through the tube 25, into which longitudinal slots 25 'are incorporated. The clamping force of the compression spring 29 is thus transmitted to the support plate 24 and from this to the clamping jaws 23. And in order to move the clamping jaws 23 to the right against the clamping force of the compression spring 29 and thus to be able to open the vice 21, the pressure medium consisting of a hydraulic cylinder 42 with pistons inserted in these pistons is to be supplied so that the piston rod 43 on the intermediate piece 30, to which a roller 30 'is attached can act.

Die Spannstöcke 21 sind durch eine Klemmverbindung lösbar mit dem Schlitten 11 verbunden. Dazu ist auf diesem mittels Schrauben 14 eine Führungsschiene 12 befestigt, die Keilflächen 13 und 13' aufweist, und an dem Rohr 25 ist ein Klemmstück 26 angebracht, das ein weiteres um einen Bolzen 28 verschwenkbares Klemmstück 27 trägt. Durch die Kraft einer auf das Klemmstück 27 einwirkenden an dem Klemmstück 26 abgestützten Druckfeder 29' wird das Klemmstück 27 mit der Klemmfläche 27' an das Klemmstück 13 gepreßt, so daß der Spannstock 23 bei einer Verstellbewegung des Schlittens 11 von diesem mitgenommen wird.The vices 21 are detachably connected to the slide 11 by a clamp connection. For this purpose, a guide rail 12, which has wedge surfaces 13 and 13 ', is fastened to it by means of screws 14, and a clamping piece 26 is attached to the pipe 25, which carries a further clamping piece 27 which can be pivoted about a bolt 28. Due to the force of a compression spring 29 'acting on the clamping piece 27 and supported on the clamping piece 26, the clamping piece 27 with the clamping surface 27' is pressed against the clamping piece 13, so that the vice 23 is carried along by the slide 11 when the slide 11 is moved.

Das Lösen der Klemmverbindung zwischen dem Spannstück 21 und dem Schlitten 11 wird mittels der als Spannzange 52 ausgebildeten Servoeinrichtung 51 bewerkstelligt. Die Kolbenstange 54 eines in einen Zylinder 53 eingesetzten von einem Druckmedium beaufschlagbaren Kolbens wirkt dazu auf die Spannzange 52 ein, durch die der auf dem Bolzen 28 verdrehbar gelagerte Klemmhebel 27 verschwenkt und somit von dem Klemmstück 13 gelöst werden kann.The clamping connection between the clamping piece 21 and the slide 11 is released by means of the servo device 51 designed as a collet 52. For this purpose, the piston rod 54 of a piston which can be acted upon by a pressure medium and acts on a cylinder 53 acts on the collet 52, by means of which the clamping lever 27 rotatably mounted on the bolt 28 can be pivoted and can thus be released from the clamping piece 13.

Soll ein Werkstück 4 in dem Bearbeitungszentrum 2 mittels der in einem Werkzeugträger 3 eingesetzter Werkzeuge bearbeitet werden, so sind zunächst mittels der Servoeinrichtung 31, die in dem gezeigten Ausführungsbeispiel als eine durch einen mit einem Kolben versehenen Hydraulikzylinder 33 verstellbare Platte 32 ausgebildet ist, alle sich außerhalb des Bearbeitungszentrums 2 befindlichen Spannstöcke 21 zu öffnen. Die Servoeinrichtung 31 wirkt dazu auf die Zwischenstücke 30 ein, so daß die Spannbacken 23 entgegen der Kraft der Feder 29 nach rechts verschoben und das Werkstück 4 eingelegt werden kann. Selbstverständlich sind vorab die Spannbacken 23 auf die Breite des Werkstückes 4 auszurichten. Nach dem Entlüften der Servoeinrichtung 31 werden die Spannbacken 23 durch die Kraft der Druckfeder 29 gegen das Werkstück 4 gepreßt.If a workpiece 4 is to be machined in the machining center 2 by means of the tools inserted in a tool carrier 3, then first of all, by means of the servo device 31, which in the exemplary embodiment shown is designed as a plate 32 adjustable by a hydraulic cylinder 33 provided with a piston, are all separate to open vices 21 located outside the machining center 2. For this purpose, the servo device 31 acts on the intermediate pieces 30, so that the clamping jaws 23 are displaced to the right against the force of the spring 29 and the workpiece 4 can be inserted. Of course, the jaws 23 are on the Align the width of the workpiece 4. After venting the servo device 31, the clamping jaws 23 are pressed against the workpiece 4 by the force of the compression spring 29.

Sodann wird der Schlitten 11 gesteuert dem Werkzeugträger 3 zugeführt und das Werkstück 4 wird beispielsweise, wie dies in Figur 2 gezeigt ist, in zwei Werkzeugsegmente 4' und 4'' unterteilt.The slide 11 is then fed to the tool carrier 3 in a controlled manner and the workpiece 4 is, for example, as shown in FIG. 2, divided into two tool segments 4 ′ and 4 ″.

Um das Werkstücksegment 4'' an der Schnittfläche bearbeiten zu können, sind die Werkstücksegmente 4' und 4'' zu vereinzeln. Dies wird in der Weise bewerkstelligt, in dem mit Hilfe der einander gegenüberliegend in dem Bearbeitungszentrum 2 angeordneten Servoeinrichtungen 41 und/oder 51 und einem gesteuerten Verfahren des Schlittens 11, in dem wechselweise die Verbindungen zwischen einem Spannstock 21 und dem jeweiligen Werkstücksegment 4' bzw. 4'' sowie zwischen dem Spannstock 21 und dem Schlitten 10 gelöst werden, die Spannstöcke 21 in bezug auf die Werkstücksegmente 4' und 4'' entsprechend positioniert werden. Sodann wird mit Hilfe der beiden Servoeinrichtungen 51 die Klemmverbindung zwischen der Schiene 11 und den Spannstöcken 21 eines der Werkstücksegmente 4' oder 4'' gelöst, so daß der Schlitten 10 und mit diesem das andere Werkstücksegment 4'' bzw. 4' um eine entsprechende Wegstrecke verfahren werden kann.In order to be able to machine the workpiece segment 4 '' on the cutting surface, the workpiece segments 4 'and 4' 'must be separated. This is accomplished in such a way that with the help of the servo devices 41 and / or 51 arranged opposite one another in the machining center 2 and a controlled method of the slide 11, in which the connections between a vice 21 and the respective workpiece segment 4 'or 4 '' and between the vice 21 and the slide 10 are solved, the vices 21 are positioned accordingly with respect to the workpiece segments 4 'and 4' '. Then the clamping connection between the rail 11 and the vices 21 of one of the workpiece segments 4 'or 4' 'is released with the help of the two servo devices 51, so that the slide 10 and with it the other workpiece segment 4' 'or 4' by a corresponding one Distance can be traversed.

Selbstverständlich sind die beiden Servoeinrichtungen 51 in einem derartigen Abstand zueinander anzuordnen, daß zumindest die auf eines der Werkstücksegmente 4', 4'' einwirkenden Spannstöcke 21 durch die Servoeinrichtungen 51 zu betätigen sind.Of course, the two servo devices 51 are to be arranged at such a distance from one another that at least the vices 21 acting on one of the workpiece segments 4 ', 4' 'can be actuated by the servo devices 51.

Claims (8)

Transport- und Haltevorrichtung für stangenförmige Werkstücke, insbesondere für Hohlprofile, die einem Bearbeitungszentrum zuführbar und in diesem zu bearbeiten sind,
gekennzeichnet durch
einen auf einer ortsfesten Tragschiene (10) verfahrbaren Schlitten (11) und einer Vielzahl mit diesem koppelbaren Spannstöcken (21), in denen das Werkstück (4) mittels zustellbarer Spannbacken (22, 23) gehalten ist, und Betätigungsgliedern (Servoeinrichtungen 31, 41, 51) zum Öffnen der Spannbacken (22, 23) sowie zum Lösen der Verbindung zwischen dem Schlitten (11) und den Spannstöcken (21).Transport and holding device for rod-shaped workpieces, in particular for hollow profiles, which can be fed to and processed in a machining center,
marked by
a carriage (11) which can be moved on a fixed mounting rail (10) and a large number of clamping sticks (21) which can be coupled thereto and in which the workpiece (4) is held by means of adjustable clamping jaws (22, 23), and actuators (servo devices 31, 41, 51) for opening the clamping jaws (22, 23) and for releasing the connection between the slide (11) and the clamping sticks (21). Transport- und Haltevorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der Schlitten (11) mit einer mit Keilflächen (13) versehenen Führungsschiene (12) versehen ist, an der die Spannstöcke (21) mittels Klemmstücken (26, 27) arretierbar sind.Transport and holding device according to claim 1,
characterized,
that the carriage (11) is provided with a wedge-shaped surface (13) with a guide rail (12) on which the vices (21) can be locked by means of clamping pieces (26, 27). Transport- und Haltevorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
daß zum Lösen der Klemmverbindung eine auf einen Klemmbacken (27) einwirkende durch Druckmittel betätigbare Spannzange (52) als Servoeinrichtung (51) vorgesehen ist, die achssenkrecht zu der Tragschiene (11) seitlich neben dieser angeordnet ist.Transport and holding device according to claim 2,
characterized,
that for releasing the clamping connection, a collet (52), which acts on a clamping jaw (27) and can be actuated by pressure medium, is provided as a servo device (51), which is arranged perpendicular to the side of the mounting rail (11). Transport- und Haltevorrichtung nach einem oder mehreren der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Spannstöcke (21) jeweils aus einem ortsfest angeordneten Spannbacken (22) und einem durch die Kraft einer Feder (29) achssenkrecht zu dem Schlitten (11) verstellbaren Spannbacken (23) bestehen.Transport and holding device according to one or more of claims 1 to 3,
characterized,
that the vices (21) each consist of a stationary jaw (22) and a jaw (23) which is adjustable perpendicular to the slide (11) by the force of a spring (29). Transport- und Haltevorrichtung nach Anspruch 4,
dadurch gekennzeichnet,
daß die verstellbaren Spannbacken (23) der Spannstöcke (21) einzeln und/oder gemeinsam durch von Druckmittel beaufschlagbare Servoeinrichtungen (31, 41) entgegen der Krtaft der Feder (29) betätigbar sind.Transport and holding device according to claim 4,
characterized,
that the adjustable clamping jaws (23) of the vices (21) can be actuated individually and / or together by servo devices (31, 41) which can be acted upon by pressure medium against the force of the spring (29). Transport- und Haltevorrichtung nach einem oder mehreren der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß vorzugsweise innerhalb des Bearbeitungszentrums (2) einander gegenüberliegend eine Spannzange (52) sowie eine Servoeinrichtung (41) zur Betätigung der verstellbaren Spannbacken der Spannstöcke (21) angeordnet sind.Transport and holding device according to one or more of claims 1 to 5,
characterized,
that a collet (52) and a servo device (41) for actuating the adjustable jaws of the vices (21) are preferably arranged opposite one another within the machining center (2). Transport- und Haltevorrichtung nach einem oder mehreren der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß zwei oder mehrere Spannzangen (52) mit seitlichem Abstand zueinander und vorzugsweise gegeneinander verstellbar seitlich neben der Tragschiene (10) angeordnet sind.Transport and holding device according to one or more of claims 1 to 6,
characterized,
that two or more collets (52) are arranged at a lateral distance from one another and preferably adjustable relative to one another laterally next to the mounting rail (10). Transport- und Haltevorrichtung nach einem oder mehreren der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß zum Einlegen eines Werkstückes (4) in die auf dem Schlitten (11) angeordneten Spannstöcke (21) eine außerhalb des Bearbeitungszentrums (2) neben der Tragschiene (10) angeordnete Servoeinrichtung (31) vorgesehen ist, mittels der die Spannstöcke (21) gemeinsam betätigbar sind.Transport and holding device according to one or more of claims 1 to 7,
characterized,
that for inserting a workpiece (4) into the vices (21) arranged on the slide (11), a servo device (31) is provided outside the machining center (2) next to the mounting rail (10), by means of which the vices (21) together are operable.
EP94102023A 1993-03-06 1994-02-10 Transporting and locating device Expired - Lifetime EP0623420B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9303271U 1993-03-06
DE9303271U DE9303271U1 (en) 1993-03-06 1993-03-06

Publications (2)

Publication Number Publication Date
EP0623420A1 true EP0623420A1 (en) 1994-11-09
EP0623420B1 EP0623420B1 (en) 1997-12-29

Family

ID=6890264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94102023A Expired - Lifetime EP0623420B1 (en) 1993-03-06 1994-02-10 Transporting and locating device

Country Status (3)

Country Link
EP (1) EP0623420B1 (en)
AT (1) ATE161457T1 (en)
DE (2) DE9303271U1 (en)

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EP1040891A1 (en) * 1999-03-17 2000-10-04 ME.C.AL. S.n.c. di MESCHINI ROSELLA A work centre having a plurality of clamps for clamping a work-piece
CN106180381A (en) * 2016-07-26 2016-12-07 滁州达世汽车配件有限公司 Progressive die for stamping parts of automobile

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DE4409895A1 (en) * 1994-03-23 1995-09-28 Stegherr Maschinenbau Gmbh & C Chuck for automatically gripping workpieces esp. long wooden sections
DE19735069A1 (en) * 1997-08-13 1999-02-18 Baljer & Zembrod Tension alignment device for automatic stock-removing finishing of long workpieces
KR101450510B1 (en) * 2014-07-25 2014-10-15 (주)한도기공 Machinery and equipment possible mobile automatic for attacting and division
CN106623666B (en) * 2017-01-12 2019-09-03 佛山市顺德区中兴盛自动化机械设备有限公司 A kind of transmission processing structure applied to drawer concealed slide track plate
WO2021206702A1 (en) * 2020-04-08 2021-10-14 Peddinghaus Corporation System and method for processing a workpiece

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DE3406367A1 (en) * 1984-02-22 1985-08-22 Prieß, Horstmann & Co Maschinenbau GmbH & Co KG, 4955 Hille Apparatus for transporting and machining plate-like workpieces
EP0234548A2 (en) * 1986-02-26 1987-09-02 Bartholomäus Huber Machine tool for cutting into lengths and punching profiled sections
EP0285746A1 (en) * 1985-03-22 1988-10-12 Oxytechnik Ges. für Systemtechnik mbH Device for fixing the cutting positions for profiles, such as bulge profiles, I-profiles and similar bar-shaped work pieces
EP0562216A1 (en) * 1992-03-25 1993-09-29 Fensterfabrik Albisrieden Ag Machine tool

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3406367A1 (en) * 1984-02-22 1985-08-22 Prieß, Horstmann & Co Maschinenbau GmbH & Co KG, 4955 Hille Apparatus for transporting and machining plate-like workpieces
EP0285746A1 (en) * 1985-03-22 1988-10-12 Oxytechnik Ges. für Systemtechnik mbH Device for fixing the cutting positions for profiles, such as bulge profiles, I-profiles and similar bar-shaped work pieces
EP0234548A2 (en) * 1986-02-26 1987-09-02 Bartholomäus Huber Machine tool for cutting into lengths and punching profiled sections
EP0562216A1 (en) * 1992-03-25 1993-09-29 Fensterfabrik Albisrieden Ag Machine tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1040891A1 (en) * 1999-03-17 2000-10-04 ME.C.AL. S.n.c. di MESCHINI ROSELLA A work centre having a plurality of clamps for clamping a work-piece
CN106180381A (en) * 2016-07-26 2016-12-07 滁州达世汽车配件有限公司 Progressive die for stamping parts of automobile

Also Published As

Publication number Publication date
EP0623420B1 (en) 1997-12-29
ATE161457T1 (en) 1998-01-15
DE59404855D1 (en) 1998-02-05
DE9303271U1 (en) 1993-05-19

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