EP0589240A1 - Horizontal metal-extrusion press - Google Patents

Horizontal metal-extrusion press Download PDF

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Publication number
EP0589240A1
EP0589240A1 EP93113794A EP93113794A EP0589240A1 EP 0589240 A1 EP0589240 A1 EP 0589240A1 EP 93113794 A EP93113794 A EP 93113794A EP 93113794 A EP93113794 A EP 93113794A EP 0589240 A1 EP0589240 A1 EP 0589240A1
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EP
European Patent Office
Prior art keywords
press
holder
die
axis
press axis
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
EP93113794A
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German (de)
French (fr)
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EP0589240B1 (en
Inventor
Josef Ahrweiler
Horst Groos
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.)
SMS Hasenclever GmbH
SMS Hasenclever Maschinenfabrik GmbH
Original Assignee
SMS Hasenclever GmbH
SMS Hasenclever Maschinenfabrik GmbH
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Publication of EP0589240A1 publication Critical patent/EP0589240A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B21C23/215—Devices for positioning or centering press components, e.g. die or container

Definitions

  • the invention relates to a lying metal extrusion press between the cylinder beam and counter beam connected by tie rods, a pickup holder and a running beam are horizontally movable.
  • the counter spar which supports the die in direct extrusion via a die holder and in indirect extrusion via a hollow punch - the die punch - the barrel connected to the plunger, which carries and guides the press ram or a closure piece in indirect extrusion, and the pick-up holder must be on the press axis aligned and guided so that they maintain their alignment during production, in particular through the pressing process, for which adjusting and measuring devices are provided.
  • the centering of the press ram on one side and the die on the other end face of the transducer does not mean, however, that the axes of the press ram, transducer and die are aligned, so that additional measurements, such as the inclination of the transducer relative to the counter beam, are connected, if necessary, with monitoring the Alignment of the press ram with respect to the bed plate of the press are necessary with the corresponding structural effort and sources of error.
  • a measuring device is known in which a carrier connected to the ram carries two transmitters which emit coherent rays of electromagnetic vibrations parallel to one another and to the press axis, during the pick-up holder and the Die holder on receptacles connected to them at the same distance from each other and to the press axis as the transmitters are assigned.
  • This solution has not proven itself under operating conditions, since it has proven to be susceptible to faults and a hindrance and therefore does not justify the high construction costs.
  • the device according to EP-A2-O 379 937 is better adapted to the operating conditions, in which the pick-up holder and the running beam between the tie rods connecting the cylinder beam and the counter beam to the press frame are provided with lower, weight-absorbing and upper, holding-down guides, the measuring sensors are assigned, which measure and display the position of the transducer holder and the spar relative to the tie rods.
  • the previous alignment of the transducer and transducer holder and pressing tools is necessary, which must be carried out again for each tool combination, which is particularly disadvantageous when pressing programs are smaller Lot sizes are to be driven.
  • the object of the invention is a direct measurement of the alignment of the tools, the runner and the pick-up holder with respect to the press axis, so that additional indirect measurements and presettings for calibrating the measuring devices can be omitted.
  • non-contact distance measuring probes which are known as such, for example on an eddy current, laser or ultrasound basis.
  • a prerequisite for the arrangement of the measuring devices according to the invention on the tie rods of the press frame is a press frame of high dimensional stability. Since deformations of the press frame directly affect the measurement result, they must be within the tolerance range of the escape accuracy. Press frames that meet this condition have long been known (inter alia, "Aluminum” 50 (1974) 7, pages 456 to 461, FJ Zilges; "Technical reports metallurgical practice metal processing” 18 (1980) 10, pages 951 to 958, Dieter Veltjens; DE 23 31 318 C 3) and their dimensional stability has also been used in the solution according to EP-O 379 937 A2. According to a further feature of the invention, prestressed press frames with shrink anchors formed from tension slats and the surrounding square pressure columns are used as the press frame with high dimensional stability for connecting the spars (cylinder spar and counter spar) of the press frame.
  • the metal extrusion press shown in the drawings consists of a cylinder bar 1, a counter bar 2 and tie rods 4 connecting them to the press frame 3.
  • the tie rods 4 are designed as shrink anchors and are composed of tie bars 5 which, with hammer heads 6, the bars (cylinder bar 1 and counter bar 2) overlap, and from square pressure columns 7, which are arranged between the spars.
  • the square pressure columns 7 are hollow and are composed of two interconnected U-shaped halves 7a and 7b.
  • a cylinder 8 Connected to the cylinder spar 1 is a cylinder 8 in which a piston connected to a barrel spar 9 can be acted upon for the pressing process, the barrel spar 9 moving in the direction of the press axis XX with a ram 10 attached to it. Retractions 11 are provided for the retrospective movement of the walking bar 9.
  • a pick-up holder 12 of a pick-up 13 for blocks to be pressed is also movable in the direction of the press axis XX.
  • the pick-up holder 12 is moved by piston-cylinder units 14.
  • the runner 9 and the pick-up holder 12 are guided by the tie rods 4, of which at least the lower ones are provided with guide strips 15, around the runner 9 and support the pickup holder 12, however the upper ones can also be provided with guide strips 16 - as in the exemplary embodiment - in order to hold down the running bar 9 and the pick-up holder 12.
  • the crossbar 9 is provided with cantilever arms 17 and the pickup holder 12 is provided with cantilever arms 18.
  • Four guide shoes 19 are arranged on the cantilever arms 17 of the running beam 9 in a cross-sectional plane, and four guide shoes 19 are arranged on the cantilever arms 18 of the transducer holder 12 in a first cross-sectional plane closer to the cylinder beam 1 and in a second plane closer to the counter beam 2. that slide along the lower guide strips 15 or along the upper guide strips 16.
  • the guide shoes 19 can be adjusted by means of a manually or motorized actuating means of known design and thus the runner 9 and the pick-up holder 12 can be aligned with the press axis X-X.
  • a cassette 22 for receiving a die with die holder 23 can be displaced transversely to the press axis X-X in guide rails 20, 21.
  • the die is supported by the die holder 23 and a pressure ring or more in the pressing direction on the counter beam 2, and adjusting means are provided on the guide rails 20, 21, via which the cassette 22 with die holder 23 and die can be aligned centrally to the press axis X-X.
  • the cylinder spar 1 and the counter spar 2 are aligned on the foundation 24 of the metal extrusion press in such a way that their centers are in the balance and in line with the press axis XX. Then the tie rods 4, which are composed of the tension plates 5 and the square pressure columns 7, are introduced into the slots in the spars (cylinder spar 1, counter spar 2), which are directed radially towards the press axis XX and are fixed in these slots at the same distance from the press axis XX. In this position, the tension slats 5 and the square pressure columns 7 are biased against each other.
  • measuring probes 25 are arranged in holders 26 radially on the press axis X-X on the tie rods. These measuring probes 25 form non-contact distance measuring probes and can be adjusted in their radial planes R1, R2, R3, R4 to a reference distance that is central to the press axis X-X.
  • Level R1 gives measurement surfaces which are scanned by the distance measuring probes (measuring probes 25), with equal distances in the respective levels R1, R2, R3, R4 indicating the central and aligned alignment of the transducer and pressing tools, while deviations in these distances indicate the error display immediately and enable or initiate the manual or automatically controlled, motorized correction via the adjusting means.
  • the distance measurements can be made before and during the pressing process in specific, selected positions of the pick-up holder 12 and the tools (punch 10, die holder 23) or, if appropriate, for example the position of the press punch 10 in the radial plane R1 in the exemplary embodiment and / or in a position closer to the pick-up holder 12 radial plane R1 'in the working position - take place over a section of the auxiliary or working movement. It is also possible in certain radial planes to carry out distance measurements on different measuring surfaces, for example in radial planes 1 and 2 (if these are the same distance apart as radial planes 2 and 3), distance measurements on measuring surfaces 27 and 28 to transducer holder 12, if this is from it Working position has been reduced accordingly.,
  • the number and arrangement of the radial planes R with the measuring probes 25 depends on the design of the metal extrusion press for the pressing method to be used.
  • a further radial plane with measuring probes can be provided for checking the aligned alignment of the mandrel.
  • Set up for indirect extrusion Metal extrusion presses can be provided in two radial planes to check the aligned alignment of the die stamp, namely in the area of the die and in the area of the die base.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)

Abstract

In order to permit direct measurement of the alignment of the dies, of the moving crosshead and of the container holder in relation to the press axis, at least three distance-measuring sensors (25) directed radially at the press axis (X-X) at centre angles of 120 DEG or less and adjustable concentrically with respect to the press axis to a reference distance are, according to the invention, arranged on the tie bars (4) of a press frame (3) of high dimensional stability, in radial planes (R1, R2...) in which, in the working position and/or selected positions of the container holder (12) and of the dies (10, 23), they sense measurement surfaces (27, 28, 29, 30) provided concentrically on the container or container holder (12) and on the dies (10, 23). In order to be able to carry out the measurements without interruptions to operation, it is advantageous to provide contactless distance-measuring sensors, which are known per se in the form, for example, of sensors based on eddy-current, laser or ultrasound techniques.

Description

Die Erfindung bezieht sich auf eine liegende Metallstrangpresse zwischen deren durch Zuganker verbundenen Zylinderholm und Gegenholm ein Aufnehmerhalter und ein Laufholm horizontal beweglich geführt sind. Der Gegenholm, der die Matrize beim direkten Strangpressen über einen Matrizenhalter und beim indirekten Strangpressen über einen Hohlstempel - den Matrizenstempel - abstützt, der mit dem Preßkolben verbundene Laufholm, der den Preßstempel oder ein Verschlußstück beim indirekten Strangpressen tragt und führt, und der Aufnehmerhalter müssen auf die Preßachse ausgerichtet und so geführt sein, daß sie ihre fluchtende Ausrichtung wahrend der Produktion, insbesondere über den Preßvorgang beibehalten, wofür Stell- und Meßeinrichtungen vorgesehen sind. Diese Stell- und Meßeinrichtungen sollten geeignet sein, die fluchtende Ausrichtung von Aufnehmer und Preßwerkzeugen (Matrize, Stempel und - beim Hohlstrangpressen - Dorn) bei jedem Preßzyklus zu überprüfen und bei Abweichungen infolge geänderter Betriebsbedingungen nachzustellen. Entsprechend der entscheidenden Bedeutung, die die fluchtende Ausrichtung von Aufnehmer und Preßwerkzeugen für den störungsfreien Preßbetrieb und für die Produktqualität im allgemeinen und beim Mehr- sowie Hohlstrangpressen im besonderen hat, fehlt es nicht an Lösungsvorschlägen hierzu.The invention relates to a lying metal extrusion press between the cylinder beam and counter beam connected by tie rods, a pickup holder and a running beam are horizontally movable. The counter spar, which supports the die in direct extrusion via a die holder and in indirect extrusion via a hollow punch - the die punch - the barrel connected to the plunger, which carries and guides the press ram or a closure piece in indirect extrusion, and the pick-up holder must be on the press axis aligned and guided so that they maintain their alignment during production, in particular through the pressing process, for which adjusting and measuring devices are provided. These setting and measuring devices should be suitable for checking the aligned alignment of the transducer and pressing tools (die, punch and - in the case of hollow extrusion - mandrel) at every pressing cycle and adjusting them in the event of deviations due to changed operating conditions. In line with the crucial importance that the aligned alignment of transducers and pressing tools has for trouble-free pressing operation and for product quality in general and for multi-extrusion and hollow extrusion in particular, there is no shortage of solutions to this problem.

So ist es durch die DE-OS 22 38 509 = US-PS 3 808 859 bekannt, den Aufnehmer bzw. Aufnehmerhalter an seiner dem Laufholm mit Preßstempel zugekehrten Stirnfläche mit die radiale Lage des Preßstempels zum Aufnehmer in zueinander rechtswinkeligen Ebenen erfassenden Meßgeräten zu versehen, so daß es möglich ist, den Preßstempel zum Aufnehmer an dessen einer Stirnfläche zu zentrieren, während die Zentrierung der Matrize zur anderen Stirnfläche des Aufnehmers durch eine zentrische Ausnehmung im Aufnehmer als Sitzfläche für den Matrizenhalter gegeben ist. Die Zentrierung des Preßstempels zur einen und der Matrize zur anderen Stirnfläche des Aufnehmers bedeutet aber nicht, daß die Achsen von Preßstempel, Aufnehmer und Matrize fluchten, so daß zusätzliche Messungen, wie die der Neigung des Aufnehmers gegenüber dem Gegenholm, erforderlichenfalls verbunden mit einer Überwachung der Ausrichtung des Preßstempels in bezug auf die Bettplatte der Presse nötig sind bei entsprechendem baulichen Aufwand und Fehlerquellen.So it is known from DE-OS 22 38 509 = US-PS 3 808 859, the transducer or transducer holder on its face facing the barrel with press ram with the radial position of the To provide the ram to the transducer in mutually right-angled planes, so that it is possible to center the ram to the transducer on one end face, while the centering of the die to the other end face of the transducer through a central recess in the transducer as a seat for the die holder given is. The centering of the press ram on one side and the die on the other end face of the transducer does not mean, however, that the axes of the press ram, transducer and die are aligned, so that additional measurements, such as the inclination of the transducer relative to the counter beam, are connected, if necessary, with monitoring the Alignment of the press ram with respect to the bed plate of the press are necessary with the corresponding structural effort and sources of error.

Durch die DE-OS 28 50 576 und die DE-OS 30 20 156 ist eine Meßeinrichtung bekannt, bei welcher ein mit dem Preßstempel verbundener Träger zwei Sender trägt, die untereinander und zur Preßachse parallele kohärente Strahlen elektromagnetischer Schwingungen aussenden, während dem Aufnehmerhalter und dem Matrizenhalter an mit diesen verbundenen Trägern Empfänger in gleichem Abstand zueinander und zur Preßachse wie die Sender zugeordnet sind. Diese Lösung hat sich unter Betriebsbedingungen nicht bewährt, da sie sich als störanfällig und hinderlich erwiesen hat und somit den hohen baulichen Aufwand nicht rechtfertigt.From DE-OS 28 50 576 and DE-OS 30 20 156 a measuring device is known in which a carrier connected to the ram carries two transmitters which emit coherent rays of electromagnetic vibrations parallel to one another and to the press axis, during the pick-up holder and the Die holder on receptacles connected to them at the same distance from each other and to the press axis as the transmitters are assigned. This solution has not proven itself under operating conditions, since it has proven to be susceptible to faults and a hindrance and therefore does not justify the high construction costs.

Den Betriebsbedingungen besser angepaßt ist die Vorrichtung nach der EP-A2-O 379 937 bei der der Aufnehmerhalter und der Laufholm zwischen den den Zylinderholm und den Gegenholm zum Pressenrahmen verbindenden Zugankern mit unteren, das Gewicht auffangenden und oberen, niederhaltenden Führungen versehen sind, denen Meßfühler zugeordnet sind, die die Lage des Aufnehmerhalters und des Laufholms relativ zu den Zugankern messen und anzeigen. Zur Eichung der Meßfühler ist die vorherige fluchtende Ausrichtung von Aufnehmer und Aufnehmerhalter und Preßwerkzeugen erforderlich, die für jede Werkzeugzusammenstellung erneut vorzunehmen ist, was sich insbesondere dann nachteilig auswirkt, wenn Preßprogramme kleiner Losgrößen zu fahren sind.The device according to EP-A2-O 379 937 is better adapted to the operating conditions, in which the pick-up holder and the running beam between the tie rods connecting the cylinder beam and the counter beam to the press frame are provided with lower, weight-absorbing and upper, holding-down guides, the measuring sensors are assigned, which measure and display the position of the transducer holder and the spar relative to the tie rods. To calibrate the sensors, the previous alignment of the transducer and transducer holder and pressing tools is necessary, which must be carried out again for each tool combination, which is particularly disadvantageous when pressing programs are smaller Lot sizes are to be driven.

Aufgabe der Erfindung ist eine direkte Messung der Ausrichtung der Werkzeuge, des Laufholms und des Aufnehmerhalters in bezug zur Pressenachse, so daß zusätzliche indirekte Messungen und Vorauseinstellungen zur Eichung der Meßgeräte entfallen können. Zur Lösung der Aufgabe ist gemäß der Erfindung vorgesehen, daß an den Zugankern des Pressenrahmens mindestens drei in Zentriwinkeln von 120° oder weniger radial auf die Preßachse gerichtete und zu ihr zentrisch auf einen Referenzabstand justierbare Abstandsmeßtaster als Meßeinrichtungen in Radialebenen angeordnet sind, in denen sie zentrisch am Aufnehmer bzw. Aufnehmerhalter und an den Werkzeugen vorgesehne Meßflächen in Arbeitsstellung und/oder ausgewählten Positionen des Aufnehmerhalters und der Werkzeuge abtasten. Um die Messungen ohne Betriebsunterbrechungen durchführen zu können, ist es vorteilhaft, berührungslos arbeitende Abstandmeßtaster vorzusehen, die als solche, beispielsweise auf Wirbelstrom-, Laser- oder Ultraschallbasis messend bekannt sind.The object of the invention is a direct measurement of the alignment of the tools, the runner and the pick-up holder with respect to the press axis, so that additional indirect measurements and presettings for calibrating the measuring devices can be omitted. To achieve the object, it is provided according to the invention that at least three radially directed at the tie rods of the press frame in central angles of 120 ° or less radially on the press axis and adjustable to it to a reference distance as measuring devices in radial planes in which they are arranged centrally Scan the measuring surfaces provided on the transducer or transducer holder and on the tools in the working position and / or selected positions of the transducer holder and the tools. In order to be able to carry out the measurements without interruptions in operation, it is advantageous to provide non-contact distance measuring probes which are known as such, for example on an eddy current, laser or ultrasound basis.

Voraussetzung für die erfindungsgemäße Anordnung der Meßeinrichtungen an den Zugankern des Pressenrahmens ist ein Pressenrahmen hoher Formstabilität. Da Verformungen des Pressenrahmens das Meßergebnis unmittelbar beeinflussen müssen diese im Toleranzbereich der Fluchtgenauigkeit liegen. Pressenrahmen, die diese Bedingung erfüllen, sind seit langem bekannt (u.a. "Aluminium" 50 (1974) 7, Seiten 456 bis 461, F.J. Zilges; "Fachberichte Hüttenpraxis Metallverarbeitung" 18 (1980) 10, Seiten 951 bis 958, Dieter Veltjens; DE 23 31 318 C 3) und deren Formstabilität ist auch genutzt worden bei der Lösung nach der EP-O 379 937 A2. Als Pressenrahmen hoher Formstabilität werden gemäß einem weiteren Merkmal der Erfindung vorgespannte Pressenrahmen mit aus Zuglamellen und diese umgebenden Vierkant-Drucksäulen gebildeten Schrumpfankern zur Verbindung der Holme (Zylinderholm und Gegenholm) des Pressenrahmens verwendet.A prerequisite for the arrangement of the measuring devices according to the invention on the tie rods of the press frame is a press frame of high dimensional stability. Since deformations of the press frame directly affect the measurement result, they must be within the tolerance range of the escape accuracy. Press frames that meet this condition have long been known (inter alia, "Aluminum" 50 (1974) 7, pages 456 to 461, FJ Zilges; "Technical reports metallurgical practice metal processing" 18 (1980) 10, pages 951 to 958, Dieter Veltjens; DE 23 31 318 C 3) and their dimensional stability has also been used in the solution according to EP-O 379 937 A2. According to a further feature of the invention, prestressed press frames with shrink anchors formed from tension slats and the surrounding square pressure columns are used as the press frame with high dimensional stability for connecting the spars (cylinder spar and counter spar) of the press frame.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt.An embodiment of the invention is shown in the drawings.

Es zeigt die

Fig. 1
eine Seitenansicht einer liegenden Metallstrangpresse, wozu Schnitte quer zur Pressenachse in
Fig. 2
in der Ebene A-A in Richtung der Pfeile II-II, in
Fig. 3
in der Ebene A-A in Richtung der Pfeile III-III und in
Fig. 4
in der Ebene B-B in Richtung der Pfeile IV-IV gesehen dargestellt sind.
It shows the
Fig. 1
a side view of a lying metal extrusion press, for which cuts transverse to the press axis in
Fig. 2
in plane AA in the direction of arrows II-II, in
Fig. 3
in plane AA in the direction of arrows III-III and in
Fig. 4
are shown in the plane BB seen in the direction of arrows IV-IV.

Die in den Zeichnungen dargestellte Metallstrangpresse besteht aus einem Zylinderholm 1, einem Gegenholm 2 und diese zum Pressenrahmen 3 verbindenden Zugankern 4. Die Zuganker 4 sind als Schrumpfanker ausgebildet und zusammengesetzt aus Zuglamellen 5, die mit Hammerköpfen 6 die Holme (Zylinderholm 1 und Gegenholm 2) übergreifen, und aus Vierkant-Drucksäulen 7, die zwischen den Holmen angeordnet sind. Die Vierkant-Drucksäulen 7 sind hohl ausgebildet und aus zwei miteinander verbundenen U-förmigen Hälften 7a und 7b zusammengesetzt. Beim Zusammenbau des Pressenrahmens 3 werden die Zuglamellen 5 gegen die Vierkant-Drucksäulen 7 vorgespannt. Diese aus der DE 23 31 318 C 3 bekannte Ausbildung verleiht dem Pressenrahmen eine besonders hohe Formstabilität.The metal extrusion press shown in the drawings consists of a cylinder bar 1, a counter bar 2 and tie rods 4 connecting them to the press frame 3. The tie rods 4 are designed as shrink anchors and are composed of tie bars 5 which, with hammer heads 6, the bars (cylinder bar 1 and counter bar 2) overlap, and from square pressure columns 7, which are arranged between the spars. The square pressure columns 7 are hollow and are composed of two interconnected U-shaped halves 7a and 7b. When assembling the press frame 3, the tension slats 5 are biased against the square pressure columns 7. This design known from DE 23 31 318 C 3 gives the press frame a particularly high dimensional stability.

Verbunden mit dem Zylinderholm 1 ist ein Zylinder 8 in dem ein mit einem Laufholm 9 verbundener Kolben zum Preßvorgang beaufschlagbar ist, wobei sich der Laufholm 9 mit einem an ihm befestigten Preßstempel 10 in Richtung der Pressenachse X-X bewegt. Zur rückläufigen Bewegung des Laufholms 9 sind Rückzüge 11 vorgesehen. Ebenfalls in Richtung der Pressenachse X-X beweglich ist ein Aufnehmerhalter 12 eines Aufnehmers 13 für zur Verpressung kommende Blöcke. Der Aufnehmerhalter 12 wird bewegt von Kolben-Zylinder-Einheiten 14. Bei ihrer Bewegung in Richtung der Pressenachse X-X sind der Laufholm 9 und der Aufnehmerhalter 12 von den Zugankern 4 geführt, von denen zumindest die unteren mit Führungsleisten 15 versehen sind, um den Laufholm 9 und den Aufnehmerhalter 12 abzustützen, aber auch die oberen mit Führungsleisten 16 - wie im Ausführungsbeispiel - versehen sein können, um den Laufholm 9 und den Aufnehmerhalter 12 niederzuhalten.Connected to the cylinder spar 1 is a cylinder 8 in which a piston connected to a barrel spar 9 can be acted upon for the pressing process, the barrel spar 9 moving in the direction of the press axis XX with a ram 10 attached to it. Retractions 11 are provided for the retrospective movement of the walking bar 9. A pick-up holder 12 of a pick-up 13 for blocks to be pressed is also movable in the direction of the press axis XX. The pick-up holder 12 is moved by piston-cylinder units 14. When moving in the direction of the press axis XX, the runner 9 and the pick-up holder 12 are guided by the tie rods 4, of which at least the lower ones are provided with guide strips 15, around the runner 9 and support the pickup holder 12, however the upper ones can also be provided with guide strips 16 - as in the exemplary embodiment - in order to hold down the running bar 9 and the pick-up holder 12.

Der Laufholm 9 ist mit Auslegerarmen 17 und der Aufnehmerhalter 12 ist mit Auslegerarmen 18 versehen. An den Auslegerarmen 17 des Laufholms 9 sind in einer Querschnittsebene vier Führungsschuhe 19 und an den Auslegerarmen 18 des Aufnehmerhalters 12 sind in einer ersten, dem Zylinderholm 1 näher gelegenen Querschnittsebene und in einer zweiten, dem Gegenholm 2 näher gelegenen Ebene je vier Führungsschuhe 19 angeordnet, die entlang den unteren Führungsleisten 15 bzw. entlang den oberen führungsleisten 16 gleiten. Gegenüber den Auslegerarmen 17 bzw. 18 sind die Führungsschuhe 19 mittels manuell oder motorisch zu betätigender Stellmittel bekannter Ausbildung verstellbar und damit der Laufholm 9 und der Aufnehmerhalter 12 auf die Pressenachse X-X ausrichtbar.The crossbar 9 is provided with cantilever arms 17 and the pickup holder 12 is provided with cantilever arms 18. Four guide shoes 19 are arranged on the cantilever arms 17 of the running beam 9 in a cross-sectional plane, and four guide shoes 19 are arranged on the cantilever arms 18 of the transducer holder 12 in a first cross-sectional plane closer to the cylinder beam 1 and in a second plane closer to the counter beam 2. that slide along the lower guide strips 15 or along the upper guide strips 16. Compared to the cantilever arms 17 and 18, the guide shoes 19 can be adjusted by means of a manually or motorized actuating means of known design and thus the runner 9 and the pick-up holder 12 can be aligned with the press axis X-X.

Am Gegenholm 2 ist in Führungsschienen 20, 21 eine Kassette 22 zur Aufnahme einer Matrize mit Matrizenhalter 23 quer zur Pressenachse X-X verschiebbar. Die Matrize stützt sich über den Matrizenhalter 23 und einen Druckring oder mehrere in Preßrichtung am Gegenholm 2 ab, und es sind Stellmittel an den Führungsschienen 20, 21 vorgesehen, über die die Kassette 22 mit Matrizenhalter 23 und Matrize zentrisch zur Pressenachse X-X ausgerichtet werden kann.On the counter beam 2, a cassette 22 for receiving a die with die holder 23 can be displaced transversely to the press axis X-X in guide rails 20, 21. The die is supported by the die holder 23 and a pressure ring or more in the pressing direction on the counter beam 2, and adjusting means are provided on the guide rails 20, 21, via which the cassette 22 with die holder 23 and die can be aligned centrally to the press axis X-X.

Bei der Montage der Metallstrangpresse werden der Zylinderholm 1 und der Gegenholm 2 auf dem Fundament 24 der Metallstrangpresse so ausgerichtet, daß deren Mitten sich in der Waage und achsgleich mit der Pressenachse X-X befinden. Sodann werden die aus den Zuglamellen 5 und den Vierkant-Drucksäulen 7 zusammengesetzten Zugankern 4 in die zur Pressenachse X-X radial gerichteten, nach außen geöffneten Schlitze in den Holmen (Zylinderholm 1, Gegenholm 2) eingebracht und in diesen Schlitzen abstandsgleich zur Pressenachse X-X festgelegt. In dieser Lage werden die Zuglamellen 5 und die Vierkant-Drucksäulen 7gegeneinander vorgespannt.When assembling the metal extrusion press, the cylinder spar 1 and the counter spar 2 are aligned on the foundation 24 of the metal extrusion press in such a way that their centers are in the balance and in line with the press axis XX. Then the tie rods 4, which are composed of the tension plates 5 and the square pressure columns 7, are introduced into the slots in the spars (cylinder spar 1, counter spar 2), which are directed radially towards the press axis XX and are fixed in these slots at the same distance from the press axis XX. In this position, the tension slats 5 and the square pressure columns 7 are biased against each other.

In Radialebenen R1, R2, R3 und R4 sind an den Zugankern 4 Meßsonden 25 in Haltern 26 radial auf die Pressenachse X-X gerichtet angeordnet. Diese Meßsonden 25 bilden berührungslos arbeitende Abstandsmeßtaster und sind in ihren Radialebenen R1, R2, R3, R4 auf jeweils einen zur Pressenachse X-X zentrischen Referenzabstand justierbar. Mit aus dem Aufnehmerhalter 12 vorstehenden, zur Aufnehmerbohrung zentrischen Flächen 27 und 28 in den Ebenen R2 und R3, mit einer aus der Kassette 22 vorstehenden, zur Matrizenöffnung zentrischen Fläche 29 am Matrizenhalter 23 in der Ebene R4 und mit der Mantelfläche 30 des Preßstempels 10 in der Ebene R1 sind Meßflächen gegeben, die von den Abstandsmeßtastern (Meßsonden 25) abgetastet werden, wobei gleiche Abstände in den jeweiligen Ebenen R1, R2, R3, R4 die zentrische und fluchtende Ausrichtung von Aufnehmer und Preßwerkzeugen anzeigt, während Abweichungen in diesen Abständen den Fehler unmittelbar anzeigen und die manuelle oder automatisch gesteuerte, motorische Korrektur über die Stellmittel ermöglichen bzw. einleiten. Die Abstandmessungen können vor und während des Preßvorgangs in bestimmten, ausgewählten Positionen des Aufnehmerhalters 12 und der Werkzeuge (Stempel 10, Matrizenhalter 23) oder gegebenenfalls - beispielsweise die Lage des Preßstempels 10 in der Radialebene R1 im Ausführungsbeispiel und/oder in einer näher dem Aufnehmerhalter 12 in der Arbeitsstellung gelegenen Radialebene R1' - über einen Abschnitt der Hilfs- oder Arbeitsbewegung erfolgen. Es ist auch möglich in bestimmten Radialebenen Abstandsmessungen an verschiedenen Meßflächen vorzunehmen, beispielsweise in den Radialebenen 1 und 2 (wenn diese gleich weit auseinander entfernt sind wie die Radialebenen 2 und 3) Abstandsmessungen an den Meßflächen 27 und 28 zum Aufnehmerhalter 12, wenn dieser aus seiner Arbeitsstellung entsprechend zurückgefahren ist.,In radial planes R1, R2, R3 and R4, 4 measuring probes 25 are arranged in holders 26 radially on the press axis X-X on the tie rods. These measuring probes 25 form non-contact distance measuring probes and can be adjusted in their radial planes R1, R2, R3, R4 to a reference distance that is central to the press axis X-X. With surfaces 27 and 28 which protrude from the sensor holder 12 and are centered on the sensor bore in planes R2 and R3, with a surface 29 which projects from the cassette 22 and are central to the die opening on the die holder 23 in plane R4 and with the outer surface 30 of the press die 10 in Level R1 gives measurement surfaces which are scanned by the distance measuring probes (measuring probes 25), with equal distances in the respective levels R1, R2, R3, R4 indicating the central and aligned alignment of the transducer and pressing tools, while deviations in these distances indicate the error display immediately and enable or initiate the manual or automatically controlled, motorized correction via the adjusting means. The distance measurements can be made before and during the pressing process in specific, selected positions of the pick-up holder 12 and the tools (punch 10, die holder 23) or, if appropriate, for example the position of the press punch 10 in the radial plane R1 in the exemplary embodiment and / or in a position closer to the pick-up holder 12 radial plane R1 'in the working position - take place over a section of the auxiliary or working movement. It is also possible in certain radial planes to carry out distance measurements on different measuring surfaces, for example in radial planes 1 and 2 (if these are the same distance apart as radial planes 2 and 3), distance measurements on measuring surfaces 27 and 28 to transducer holder 12, if this is from it Working position has been reduced accordingly.,

Die Zahl und Anordnung der Radialebenen R mit den Meßsonden 25 richtet sich nach der Ausgestaltung der Metallstrangpresse für das anzuwendende Preßverfahren. So kann bei einer für das Hohlstrangpressen eingerichteten, mit einem Dorn versehenen Metallstrangpresse eine weitere Radialebene mit Meßsonden zur Überprüfung der fluchtenden Ausrichtung des Dorns vorgesehen sein. Bei für das indirekte Strangpressen eingerichteten Metallstrangpressen können zur Überprüfung der fluchtenden Ausrichtung des Matrizenstempels Meßsonden in zwei Radialebenen, nämlich im Bereich der Matrize und im Bereich des Stempelfußes, vorgesehen sein.The number and arrangement of the radial planes R with the measuring probes 25 depends on the design of the metal extrusion press for the pressing method to be used. Thus, in a metal extrusion press set up for hollow extrusion and provided with a mandrel, a further radial plane with measuring probes can be provided for checking the aligned alignment of the mandrel. Set up for indirect extrusion Metal extrusion presses can be provided in two radial planes to check the aligned alignment of the die stamp, namely in the area of the die and in the area of the die base.

Claims (3)

Liegende Metallstrangpresse, - mit einem Pressenrahmen (3) hoher Formstabilität, der einen Zylinderholm (1) und einen Gegenholm (2) verbindende Zuganker (4) aufweist, - mit einem Aufnehmerhalter (12) und mit einem, einen Preßstempel (10) tragenden Laufholm (9), die Führungsschuhe (19) aufweisen und auf Führungsschienen (15, 16) längs der Pressenachse (x-x) verschiebbar sind, wobei die Führungsschuhe (19) Stellmittel aufweisen, über die der Aufnehmerhalter (12) und der Laufholm (9) gegenüber der Pressenachse (x-x) ausrichtbar ist, - mit einer am Gegenholm (2) in Führungsschienen (20, 21) verschiebbar angeordneten Kassette (22) zur Aufnahme einer Matrize mit Matrizenhalter (23), wobei die Führungsschienen (20, 21) Stellmittel aufweisen, über die die Kassette (22) mit Matrizenhalter (23) und Matrize gegenüber der Pressenachse (x-x) ausrichtbar ist, - mit mehreren Meßeinrichtungen, mittels derer die zentrische Ausrichtung von Pressenbauteilen gegenüber der Pressenachse (x-x) überprüf- und einstellbar ist, dadurch gekennzeichnet,
daß jede Meßeinrichtung mindestens drei, eine Radialebene (R1, R2...) bildende, justierbare Abstandsmeßtaster (25) aufweist, die untereinander im Winkel von 120° oder weniger zentrisch zur Pressenachse (x-x) an den Zugankern (4) angeordnet sind und in Arbeitsstellung und/oder in ausgewählten Positionen radial den Abstand zu am Aufnehmerhalter (12) am Preßstempel (10) und am Matrizenhalter (23) vorgesehenen, zentrisch zur Pressenachse (x-x) ausrichtbaren Meßflächen (27, 28, 29, 30) abtasten.Horizontal metal extrusion press, - With a press frame (3) of high dimensional stability, which has a cylinder bar (1) and a counter bar (2) connecting tie rods (4), - With a sensor holder (12) and with a, a press ram (10) carrying spar (9), the guide shoes (19) and on guide rails (15, 16) along the press axis (xx) are displaceable, the guide shoes (19 ) Have adjusting means by means of which the pick-up holder (12) and the running bar (9) can be aligned with respect to the press axis (xx), - With a on the counter beam (2) in guide rails (20, 21) slidably arranged cassette (22) for receiving a die with a die holder (23), the guide rails (20, 21) having adjusting means via which the cassette (22) with Die holder (23) and die can be aligned with respect to the press axis (xx), with several measuring devices, by means of which the central alignment of press components with respect to the press axis (xx) can be checked and adjusted, characterized by
that each measuring device has at least three, adjustable, distance measuring probes (25) forming a radial plane (R1, R2 ...), which are at an angle of 120 ° or less are arranged centrically to the press axis (xx) on the tie rods (4) and in the working position and / or in selected positions radially the distance to the press holder (12) on the press ram (10) and on the die holder (23), centered on the press axis (xx ) the adjustable measuring surfaces (27, 28, 29, 30). Metallstrangpresse nach Anspruch 1,
gekennzeichnet durch
die Verwendung berührungslos arbeitender Abstandsmeßtaster (25) (Wirbelstrom-, Laser-, Ultraschallbasis).Metal extrusion press according to claim 1,
marked by
the use of proximity sensors (25) (eddy current, laser, ultrasound). Metallstrangpresse nach Anspruch 1 oder 2,
gekennzeichnet durch
einen vorgespannten Pressenrahmen (3) mit aus Zuglamellen (5) und diese umgebende Vierkant-Drucksäulen (7) gebildeten Schrumpfankern zur Verbindung der Holme (Zylinderholm 1 und Gegenholm 2) des Pressenrahmens (3).Metal extrusion press according to claim 1 or 2,
marked by
a prestressed press frame (3) with shrink anchors formed from tension slats (5) and surrounding square pressure columns (7) for connecting the spars (cylinder spar 1 and counter spar 2) of the press frame (3).
EP93113794A 1992-09-12 1993-08-28 Horizontal metal-extrusion press Expired - Lifetime EP0589240B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4230620 1992-09-12
DE4230620A DE4230620C1 (en) 1992-09-12 1992-09-12 Horizontal metal extrusion press

Publications (2)

Publication Number Publication Date
EP0589240A1 true EP0589240A1 (en) 1994-03-30
EP0589240B1 EP0589240B1 (en) 1997-04-23

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ID=6467853

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US (1) US5421181A (en)
EP (1) EP0589240B1 (en)
JP (1) JPH074619B2 (en)
DE (2) DE4230620C1 (en)

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DE19500555C1 (en) * 1995-01-11 1996-08-22 Hasenclever Maschf Sms Horizontal metal extrusion press
WO2004000538A2 (en) * 2002-06-19 2003-12-31 Sms Eumuco Gmbh Extruding and pipe press
ITUB20152800A1 (en) * 2015-08-03 2017-02-03 Presezzi Extrusion S P A PRECISELY CENTERING DEVICE THAT AUTOMATICALLY OPERATES AN EXTRUDER MATRIX
CN107962082A (en) * 2017-12-15 2018-04-27 济源市华中冶金机械有限公司 The regulating device of extruder extrusion cylinder
CN109821928A (en) * 2019-03-29 2019-05-31 江苏亚太轻合金科技股份有限公司 A kind of seamless Extrusion Process of Aluminum Alloy Profile gap measuring apparatus of reverse extrusion
IT201800020782A1 (en) * 2018-12-21 2020-06-21 Danieli Off Mecc PRESS FOR DIRECT EXTRUSION OF METALLIC MATERIAL
WO2022078901A1 (en) * 2020-10-12 2022-04-21 Sms Group Gmbh Method for monitoring and for changing the position of at least one running bar of a metal press, and metal press

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US6259110B1 (en) * 1999-06-29 2001-07-10 Intra Corporation Apparatus and method for aligning a horizontal metal extrusion press
US8910568B1 (en) * 2009-10-29 2014-12-16 Us Synthetic Corporation Reinforced press base, piston cavity sleeve, and method of reinforcing a press base
ES2640093B2 (en) * 2017-03-17 2018-04-24 La Farga Tub, S.L. POSITIONING VERIFICATION DEVICE FOR METAL TUBULAR PARTS, VERIFICATION EQUIPMENT AND POSITIONING VERIFICATION METHOD

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Publication number Priority date Publication date Assignee Title
DE19500555C1 (en) * 1995-01-11 1996-08-22 Hasenclever Maschf Sms Horizontal metal extrusion press
WO2004000538A2 (en) * 2002-06-19 2003-12-31 Sms Eumuco Gmbh Extruding and pipe press
WO2004000538A3 (en) * 2002-06-19 2004-02-26 Sms Eumuco Gmbh Extruding and pipe press
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KR100984500B1 (en) * 2002-06-19 2010-10-01 에스엠에스 오이무코 게엠베하 Extruding and pipe press
EP3127622A1 (en) * 2015-08-03 2017-02-08 Presezzi Extrusion S.p.A. Extrusion press with automatically working precise centering device for the die
ITUB20152800A1 (en) * 2015-08-03 2017-02-03 Presezzi Extrusion S P A PRECISELY CENTERING DEVICE THAT AUTOMATICALLY OPERATES AN EXTRUDER MATRIX
CN107962082A (en) * 2017-12-15 2018-04-27 济源市华中冶金机械有限公司 The regulating device of extruder extrusion cylinder
IT201800020782A1 (en) * 2018-12-21 2020-06-21 Danieli Off Mecc PRESS FOR DIRECT EXTRUSION OF METALLIC MATERIAL
EP3677356A1 (en) 2018-12-21 2020-07-08 Danieli & C. Officine Meccaniche S.p.A. Press for the direct extrusion of metallic material
US11318514B2 (en) 2018-12-21 2022-05-03 Danieli & C. Officine Meccaniche S.P.A. Press for the direct extrusion of metallic material
CN109821928A (en) * 2019-03-29 2019-05-31 江苏亚太轻合金科技股份有限公司 A kind of seamless Extrusion Process of Aluminum Alloy Profile gap measuring apparatus of reverse extrusion
CN109821928B (en) * 2019-03-29 2023-10-24 江苏亚太轻合金科技股份有限公司 Extrusion gap measuring device for backward extrusion seamless aluminum profile
WO2022078901A1 (en) * 2020-10-12 2022-04-21 Sms Group Gmbh Method for monitoring and for changing the position of at least one running bar of a metal press, and metal press

Also Published As

Publication number Publication date
JPH074619B2 (en) 1995-01-25
DE59306246D1 (en) 1997-05-28
EP0589240B1 (en) 1997-04-23
US5421181A (en) 1995-06-06
JPH06190435A (en) 1994-07-12
DE4230620C1 (en) 1994-04-07

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