EP3475010B1 - Perforating press - Google Patents

Perforating press Download PDF

Info

Publication number
EP3475010B1
EP3475010B1 EP17736591.3A EP17736591A EP3475010B1 EP 3475010 B1 EP3475010 B1 EP 3475010B1 EP 17736591 A EP17736591 A EP 17736591A EP 3475010 B1 EP3475010 B1 EP 3475010B1
Authority
EP
European Patent Office
Prior art keywords
cap
perforating
workpiece
upsetting
deformation
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.)
Active
Application number
EP17736591.3A
Other languages
German (de)
French (fr)
Other versions
EP3475010A1 (en
Inventor
David Hüsgen
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 Group GmbH
Original Assignee
SMS Group GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3475010A1 publication Critical patent/EP3475010A1/en
Application granted granted Critical
Publication of EP3475010B1 publication Critical patent/EP3475010B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/10—Piercing billets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/04—Piercing presses

Definitions

  • the invention relates to a piercing press according to the preamble of claim 1.
  • Hole presses are known from the production of seamless pipes, by means of which steel billets for further processing e.g. be provided with a hole on a push bench. It is known to first pre-compress the billet by means of a compression cap in order to fit the billet into a receptacle. The billet is then perforated using a perforated cap. The compression cap and the perforated cap are each received on separate cross members, which are each advanced by separate drives.
  • DE 31 49 400 A1 describes a piercing press with a one-piece, cylindrical piercing mandrel, the end of the piercing mandrel acting directly on the workpiece to be pierced.
  • the end of the piercing mandrel acting on the workpiece is guided directly in an annular compression cap, at least in a section of the movement.
  • the compression cap and the perforated cap are each received on separate cross members.
  • U.S. 2,812,673 A describes a piercing press comprising a piercing mandrel provided with a perforated cap and a hollow-cylindrical compression cap.
  • the compression cap and the perforated cap are each received on separate cross members and are moved by separate hydraulic drives.
  • the preamble of claim 1 is based on this document.
  • the overall height can be achieved by around 25% compared to conventional piercing presses with separate drive elements for upsetting force and piercing force.
  • a frame of the punch press can also be made more rigid and the dimensional accuracy of the formed workpiece can be increased.
  • a moving mass of the piercing press can also be significantly reduced.
  • a piercing press in the sense of the invention can generally be used for hot or cold forming of workpieces of any material. It is preferably a hole press for hot forming a workpiece made of steel.
  • the piercing press is particularly preferably part of a production system for producing seamless pipes, in particular made of steel.
  • the workpiece punched in the punch press is preferably transferred to subsequent processing, for example a push bench, rolling mill or the like, at the same heat.
  • the workpiece can initially have any shape, for example as a full cylinder or as a square billet.
  • a drive element within the meaning of the invention is any actuator for exerting a force in a linear direction that is sufficient to deform the workpiece.
  • the drive member preferably comprises a hydraulic cylinder.
  • a compression cap and a perforated cap are preferably components that come into direct contact with the workpiece for deformation and experience corresponding mechanical loads and wear.
  • a transducer is a hollow mold into which the workpiece is introduced, with it being supported on the hollow mold in the course of the deformation. Due to the associated wear, the sensor can preferably have an exchangeable inner wall, for example in the manner of an exchangeable sleeve.
  • the second deformation or perforation of the workpiece can take place as a rising or filling deformation in the transducer, depending on the requirements.
  • An increasing deformation is preferably provided.
  • a frictional connection between the compression cap and the drive member can be established via a releasable coupling member.
  • the coupling element can be designed as a mechanical component in various ways in order to enable releasable coupling, for example as a rod, toggle lever, link, cam or the like. It is generally preferred that the coupling and decoupling of the coupling element is operated automatically.
  • the coupling element comprises at least one coupling rod that can be attached between a cross-member and the compression cap.
  • the attached coupling rod forms a simple and highly stable means of force transmission from the crossbeam to the compression cap.
  • the traverse only acts on the perforated cap via the piercer and no longer on the compression cap.
  • the attachment and removal of the coupling rod can be preferred take place automatically, for example via a manipulator.
  • the coupling rod can have the form of a partial sleeve in order to at least partially surround the piercer.
  • the punch press has only one cross member overall. This makes the design of the piercing press considerably simpler and cheaper.
  • a traverse is understood to mean a component that is movably guided with respect to a frame of the press and transmits at least a large part of a forming force.
  • the compression cap is slidably guided on the piercer. In addition to a simple mechanical implementation of the invention, this also allows the compression cap to be used to guide the piercer.
  • the upsetting cap has an upsetting surface that is aligned with the perforated cap, the first deformation taking place by joint pressing of the upsetting surface and the perforated cap against the workpiece.
  • the second deformation can be continued without reattaching the perforated cap.
  • the compression cap is guided displaceably in the receptacle. This allows an exact alignment of both the compression cap and the piercing mandrel and the perforated cap connected to it.
  • the piercing pin and thus the perforated cap are guided transversely over the wall of the transducer during the piercing process, the compression cap functioning as an external and internal intermediate member between the piercing mandrel and the wall of the transducer.
  • the compression cap rests against the workpiece without force during the second deformation and is moved in the transducer with the deformation of the workpiece. This is particularly important with increasing deformation an optimal position of the compression cap in each case with regard to guiding the piercer is ensured.
  • the compression cap guides the piercer relative to the receiver during the second reshaping. This prevents the perforated cap from migrating and the dimensional accuracy of the perforated workpiece is significantly improved.
  • a shear ring is arranged on the pick-up, a bottom of the perforated workpiece being cut off by means of the shear ring. Overall, this allows the production of a dimensionally accurate hollow cylinder by means of the piercing press.
  • FIGS. 1 to 6 shows a piercing press according to the invention in different, chronologically consecutive operating states.
  • the punch press comprises a receiver 1, in which a workpiece 2 can be inserted.
  • the transducer 1 is shaped as a hollow cylinder, oriented vertically with respect to an axis of the hollow cylinder and has an inner wall in the form of a sleeve 1a that can be changed for maintenance purposes.
  • the workpiece is inserted into the transducer by a manipulator (not shown).
  • the workpiece consists of a steel and is at a temperature for hot forming.
  • the counter holder 3 At the bottom of the pickup 1 there is a counter holder 3 which supports the workpiece 2 from below.
  • the counter holder 3 can be removed at the end of a forming process or for maintenance purposes. In the attached state, the counter holder has the function of a rigid and immovable bottom of the transducer 1.
  • a piercer 4 is received on a drivably movable cross member 5.
  • the traverse 5 is slidably mounted on guides, not shown, of a frame.
  • a drive element 6 of the piercing press is formed in the present case by the crossbeam and a hydraulic cylinder 6 acting on the crossbeam.
  • the traverse 5 is moved by the hydraulic cylinder in the direction of extension of the piercer. In the present case, the traverse 5 is the only traverse of the punch press.
  • the piercing mandrel 4 has an exchangeable perforated cap 7 on its end facing the workpiece 2.
  • a compression cap 8 surrounds the piercer 4 in the manner of a ring and is guided on the piercer 4 so as to be displaceable. In a lower position of the compression cap 8, this is held by the perforated cap 7 as a stop. In this position (see e.g. Fig. 1 ) a compression surface 8a of the compression cap 8 facing the workpiece and an active surface 7a of the perforated cap 7 facing the workpiece are aligned.
  • An outer circumference of the compression cap 8 is also dimensioned such that the compression cap 8 is guided displaceably in the receptacle 1.
  • a play between the transducer wall and the compression cap 8 is selected so that mobility is guaranteed with the most precise guidance possible even at the temperatures that occur.
  • the compression cap 8, which is movable on the piercer 4, can be releasably fixed in the lower position by means of a coupling member in the form of a coupling rod 9 (see FIG Fig. 2 ).
  • the coupling rod 9 is inserted between an upper side of the upsetting cap 8 and the cross member 5 or the drive member of the punch.
  • the coupling rod 9 is shaped like a sleeve open on one side and partially surrounds the piercer for the purpose of better force distribution.
  • the coupling rod has an essentially part-circular cross section. In other embodiments, elliptical, polygonal or other cross-sectional shapes can also be present.
  • the coupling rod can also consist of several sub-rods that are attached to different positions on the circumference of the piercer.
  • the coupling rod, the piercer and the compression cap each run coaxially to one another.
  • the coupling rod 9 is inserted and removed by means of an automated manipulator, which is not shown here.
  • a shear ring 10 is arranged in the lower end region of the transducer 1 above the counter holder 3. By means of the shear ring 10, a bottom of the then perforated workpiece can be pierced at the end of the forming process.
  • a workpiece heated to the forming temperature for example in the form of a steel billet, is inserted into the transducer 1.
  • the compression cap 8 is initially decoupled from the drive member 5, 6 or the coupling rod 9 does not engage.
  • the piercer 4 with the perforated cap 7 and the compression cap 8 is moved into the receptacle 1 until the compression surface 8a and the active surface 7a are in contact with the workpiece 2 (see FIG Fig. 3 ).
  • the coupling rod 9 is then removed and the compression cap 8 is thus decoupled from the drive element 5, 6 in order to enable a second deformation or the actual perforation of the workpiece 2 (see FIG Fig. 5 ).
  • Fig. 6 the piercing mandrel 4 with the perforated cap 7 is now advanced further so that the perforated cap 7 perforates the workpiece 2 in the course of extrusion.
  • an upper edge of the workpiece rises in accordance with the displaced material in the transducer 1 (rising perforation).
  • the compression cap 8, which is freely displaceable on the piercer 4 is pressed upwards with the edge of the workpiece.
  • the upsetting cap continuously exercises a leading function for the piercing mandrel 4, so that the perforated cap 7 is optimally prevented from moving sideways.
  • the piercing pin and thus the perforated cap are guided transversely during the over the wall of the transducer 1, the compression cap 8 functioning as an outside and inside leading intermediate member between the piercing mandrel 4 and the wall of the transducer 1.
  • the perforated cap is pressed through the shear ring 10, the counter holder being moved back if necessary. This allows a remaining bottom of the workpiece 2 to be removed so that a complete perforation is achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Description

Die Erfindung betrifft eine Lochpresse nach dem Oberbegriff des Anspruchs 1.The invention relates to a piercing press according to the preamble of claim 1.

Aus der Fertigung von nahtlosen Rohren sind Lochpressen bekannt, mittels derer Stahlknüppel zur Weiterverarbeitung z.B. auf einer Stoßbank mit einem Loch versehen werden. Dabei ist es bekannt, zunächst eine Vorstauchung des Knüppels mittels einer Stauchkappe vorzunehmen, um den Knüppel in einer Aufnahme einzupassen. Nachfolgend wird dann eine Lochung des Knüppels mittels einer Lochkappe vorgenommen. Die Stauchkappe und die Lochkappe sind dabei jeweils an separaten Traversen aufgenommen, welche jeweils durch separate Antriebe vorgeschoben werden.Hole presses are known from the production of seamless pipes, by means of which steel billets for further processing e.g. be provided with a hole on a push bench. It is known to first pre-compress the billet by means of a compression cap in order to fit the billet into a receptacle. The billet is then perforated using a perforated cap. The compression cap and the perforated cap are each received on separate cross members, which are each advanced by separate drives.

DE 31 49 400 A1 beschreibt eine Lochpresse mit einem einstückigen, zylindrischen Lochdorn, wobei das Ende des Lochdorns unmittelbar auf das zu lochende Werkstück einwirkt. Das auf das Werkstück einwirkende Ende des Lochdorns ist zumindest in einem Abschnitt der Bewegung unmittelbar in einer ringförmigen Stauchkappe geführt. Die Stauchkappe und die Lochkappe sind dabei jeweils an separaten Traversen aufgenommen. DE 31 49 400 A1 describes a piercing press with a one-piece, cylindrical piercing mandrel, the end of the piercing mandrel acting directly on the workpiece to be pierced. The end of the piercing mandrel acting on the workpiece is guided directly in an annular compression cap, at least in a section of the movement. The compression cap and the perforated cap are each received on separate cross members.

US 2 812 673 A beschreibt eine Lochpresse umfassend einen mit einer Lochkappe versehenen Lochdorn und eine hohlzylindrisch geformte Stauchkappe. Die Stauchkappe und die Lochkappe sind dabei jeweils an separaten Traversen aufgenommen und werden von separaten hydraulischen Antrieben bewegt. Auf dieses Dokument basiert der Oberbegriff des Anspruchs 1. U.S. 2,812,673 A describes a piercing press comprising a piercing mandrel provided with a perforated cap and a hollow-cylindrical compression cap. The compression cap and the perforated cap are each received on separate cross members and are moved by separate hydraulic drives. The preamble of claim 1 is based on this document.

Es ist die Aufgabe der Erfindung, eine Lochpresse anzugeben, die eine einfache bauliche Realisierung ermöglicht.It is the object of the invention to specify a piercing press which enables simple structural implementation.

Diese Aufgabe wird für eine eingangs genannte Lochpresse erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Durch die Ausübung der Stauchkraft und der Lochkraft durch ein gemeinsames Antriebsglied können Kosten und Herstellungsaufwand der Lochpresse verringert werden. Zudem kann eine Verkleinerung der Baugröße, insbesondere einer Bauhöhe, erreicht werden.This object is achieved according to the invention with the characterizing features of claim 1 for a perforating press mentioned at the outset. By exerting the upsetting force and the piercing force by a common drive member, costs and manufacturing outlay for the piercing press can be reduced. In addition, the overall size, in particular the overall height, can be reduced.

In bevorzugter Detailgestaltung kann die Bauhöhe um rund 25 % gegenüber herkömmlichen Lochpressen mit separaten Antriebsgliedern für Stauchkraft und Lochkraft erzielt werden. Hierdurch kann auch ein Rahmen der Lochpresse steifer ausgelegt werden und die Maßgenauigkeit des umgeformten Werkstücks erhöht werden. Eine bewegte Masse der Lochpresse kann zudem wesentlich verringert werden.In a preferred detail design, the overall height can be achieved by around 25% compared to conventional piercing presses with separate drive elements for upsetting force and piercing force. As a result, a frame of the punch press can also be made more rigid and the dimensional accuracy of the formed workpiece can be increased. A moving mass of the piercing press can also be significantly reduced.

Eine Lochpresse im Sinne der Erfindung kann allgemein zur Warm- oder Kaltumformung von Werkstücken beliebigen Materials verwendet werden. Bevorzugt handelt es sich um eine Lochpresse zur Warmumformung eines Werkstücks aus Stahl. Insbesondere bevorzugt ist die Lochpresse dabei Teil einer Fertigungsanlage zur Herstellung von nahtlosen Rohren, insbesondere aus Stahl. Dabei wird das in der Lochpresse gelochte Werkstück bevorzugt in gleicher Hitze an eine nachfolgende Bearbeitung, zum Beispiel eine Stoßbank, Walzanlage oder Ähnliches, übergeben. Das Werkstück kann zunächst eine beliebige Form aufweisen, zum Beispiel als Vollzylinder oder auch als eckiger Knüppel.A piercing press in the sense of the invention can generally be used for hot or cold forming of workpieces of any material. It is preferably a hole press for hot forming a workpiece made of steel. The piercing press is particularly preferably part of a production system for producing seamless pipes, in particular made of steel. The workpiece punched in the punch press is preferably transferred to subsequent processing, for example a push bench, rolling mill or the like, at the same heat. The workpiece can initially have any shape, for example as a full cylinder or as a square billet.

Ein Antriebsglied im Sinne der Erfindung ist jeder Aktuator zur Ausübung einer zur Umformung des Werkstücks ausreichenden Kraft in linearer Richtung. Bevorzugt umfasst das Antriebglied einen Hydraulikzylinder.A drive element within the meaning of the invention is any actuator for exerting a force in a linear direction that is sufficient to deform the workpiece. The drive member preferably comprises a hydraulic cylinder.

Eine Stauchkappe und eine Lochkappe sind bevorzugt Bauteile, die zur Umformung unmittelbar mit dem Werkstück in Berührung kommen und dabei entsprechende mechanische Belastungen und Verschleiß erfahren.A compression cap and a perforated cap are preferably components that come into direct contact with the workpiece for deformation and experience corresponding mechanical loads and wear.

Ein Aufnehmer ist im Sinne der Erfindung eine Hohlform, in die das Werkstück eingebracht wird, wobei es im Zuge der Umformung an der Hohlform abgestützt ist. Aufgrund des damit einhergehenden Verschleißes kann der Aufnehmer bevorzugt eine wechselbare Innenwand, zum Beispiel nach Art einer wechselbaren Hülse, aufweisen.For the purposes of the invention, a transducer is a hollow mold into which the workpiece is introduced, with it being supported on the hollow mold in the course of the deformation. Due to the associated wear, the sensor can preferably have an exchangeable inner wall, for example in the manner of an exchangeable sleeve.

Die zweite Umformung bzw. Lochung des Werkstücks kann je nach Anforderungen als steigende oder füllende Umformung in dem Aufnehmer ablaufen. Bevorzugt ist eine steigende Umformung vorgesehen.The second deformation or perforation of the workpiece can take place as a rising or filling deformation in the transducer, depending on the requirements. An increasing deformation is preferably provided.

Bei einer bevorzugten Ausführungsform der Erfindung ist es vorgesehen, dass ein Kraftschluss zwischen der Stauchkappe und dem Antriebsglied über ein lösbares Koppelglied herstellbar ist. Dies erlaubt eine einfache und effektive Verwendung desselben Antriebsgliedes für die beiden Umformschritte. Das Koppelglied kann auf verschiedene Weise mechanisches Bauteil ausgebildet sein, um eine lösbares Verkoppeln zu ermöglichen, zum Beispiel als Stange, Kniehebel, Kulisse, Nocke oder Ähnliches. Allgemein bevorzugt wird das Koppeln und Entkoppeln des Koppelgliedes automatisiert betätigt.In a preferred embodiment of the invention it is provided that a frictional connection between the compression cap and the drive member can be established via a releasable coupling member. This allows a simple and effective use of the same drive member for the two forming steps. The coupling element can be designed as a mechanical component in various ways in order to enable releasable coupling, for example as a rod, toggle lever, link, cam or the like. It is generally preferred that the coupling and decoupling of the coupling element is operated automatically.

Bei einer bevorzugten Detailgestaltung umfasst das Koppelglied dabei zumindest eine Koppelstange, die zwischen einer Traverse und der Stauchkappe ansetzbar ist. Die angesetzte Koppelstange bildet dabei ein einfaches und hoch stabiles Kraftübertragungsmittel von der Traverse auf die Stauchkappe. Bei entnommener Koppelstange wirkt die Traverse nur noch über den Lochdorn auf die Lochkappe und nicht mehr auf die Stauchkappe. Bevorzugt kann das Ansetzen und Entnehmen der Koppelstange automatisiert erfolgen, zum Beispiel über einen Manipulator. Die Koppelstange kann zur Verbesserung der Kraftverteilung die Form einer Teilhülse haben, um den Lochdorn zumindest teilweise zu umgeben. Es können mehrere Koppelstangen zur Verbesserung der Kraftverteilung vorgesehen sein.In a preferred detailed design, the coupling element comprises at least one coupling rod that can be attached between a cross-member and the compression cap. The attached coupling rod forms a simple and highly stable means of force transmission from the crossbeam to the compression cap. When the coupling rod is removed, the traverse only acts on the perforated cap via the piercer and no longer on the compression cap. The attachment and removal of the coupling rod can be preferred take place automatically, for example via a manipulator. To improve the force distribution, the coupling rod can have the form of a partial sleeve in order to at least partially surround the piercer. Several coupling rods can be provided to improve the force distribution.

Erfindungsgemäß ist es vorgesehen, dass die Lochpresse insgesamt nur eine Traverse aufweist. Hierdurch wird die Bauform der Lochpresse erheblich einfacher und kostengünstiger. Unter einer Traverse wird im Sinne der Erfindung ein Bauteil verstanden, dass gegenüber einem Rahmen der Presse beweglich geführt ist und zumindest einen Großteil einer Umformkraft überträgt.According to the invention, it is provided that the punch press has only one cross member overall. This makes the design of the piercing press considerably simpler and cheaper. In the context of the invention, a traverse is understood to mean a component that is movably guided with respect to a frame of the press and transmits at least a large part of a forming force.

Bei einer besonders bevorzugten Ausführungsform ist die Stauchkappe auf dem Lochdorn verschiebbar geführt. Dies erlaubt neben einer einfachen mechanischen Realisierung der Erfindung auch die Verwendung der Stauchkappe zur Führung des Lochdorns.In a particularly preferred embodiment, the compression cap is slidably guided on the piercer. In addition to a simple mechanical implementation of the invention, this also allows the compression cap to be used to guide the piercer.

Allgemein vorteilhaft hat die Stauchkappe eine mit der Lochkappe fluchtende Stauchfläche, wobei die erste Umformung durch ein gemeinsames Anpressen der Stauchfläche und der Lochkappe gegen das Werkstück erfolgt. Somit kann nach der ersten Umformung ohne ein neues Ansetzen der Lochkappe der zweiten Umformung fortgefahren werden.Generally advantageously, the upsetting cap has an upsetting surface that is aligned with the perforated cap, the first deformation taking place by joint pressing of the upsetting surface and the perforated cap against the workpiece. Thus, after the first deformation, the second deformation can be continued without reattaching the perforated cap.

Weiterhin ist es bevorzugt vorgesehen, dass die Stauchkappe in dem Aufnehmer verschiebbar geführt ist. Dies erlaubt eine genaue Ausrichtung sowohl der Stauchkappe als auch des Lochdorns und der damit verbundenen Lochkappe. Insbesondere kann es dabei vorgesehen sein, dass eine Querführung des Lochdorns und somit der Lochkappe während des Lochvorgangs über die Wand des Aufnehmers erfolgt, wobei die Stauchkappe als außen und innen führendes Zwischenglied zwischen dem Lochdorn und der Wand des Aufnehmers fungiert.Furthermore, it is preferably provided that the compression cap is guided displaceably in the receptacle. This allows an exact alignment of both the compression cap and the piercing mandrel and the perforated cap connected to it. In particular, it can be provided that the piercing pin and thus the perforated cap are guided transversely over the wall of the transducer during the piercing process, the compression cap functioning as an external and internal intermediate member between the piercing mandrel and the wall of the transducer.

In vorteilhafter Detailgestaltung liegt die Stauchkappe dabei während der zweiten Umformung kraftfrei an dem Werkstück an und wird mit der Umformung des Werkstücks in dem Aufnehmer bewegt. Hierdurch ist insbesondere bei steigender Umformung eine jeweils optimale Position der Stauchkappe im Hinblick auf eine Führung des Lochdorns sichergestellt.In an advantageous detail design, the compression cap rests against the workpiece without force during the second deformation and is moved in the transducer with the deformation of the workpiece. This is particularly important with increasing deformation an optimal position of the compression cap in each case with regard to guiding the piercer is ensured.

In allgemein bevorzugter Ausführungsform erfolgt durch die Stauchkappe während der zweiten Umformung eine Führung des Lochdorns gegenüber dem Aufnehmer. Ein Auswandern der Lochkappe wird hierduch vermieden und eine Maßhaltigkeit des gelochten Werkstücks wird wesentlich verbessert.In a generally preferred embodiment, the compression cap guides the piercer relative to the receiver during the second reshaping. This prevents the perforated cap from migrating and the dimensional accuracy of the perforated workpiece is significantly improved.

Allgemein vorteilhaft ist es vorgesehen, dass an dem Aufnehmer ein Scherring angeordnet ist, wobei ein Boden des gelochten Werkstücks mittels des Scherrings abgetrennt wird. Dies erlaubt insgesamt die Herstellung eines maßgenauen Hohlzylinders mittels der Lochpresse.It is generally advantageously provided that a shear ring is arranged on the pick-up, a bottom of the perforated workpiece being cut off by means of the shear ring. Overall, this allows the production of a dimensionally accurate hollow cylinder by means of the piercing press.

Weitere Vorteile und Merkmale ergeben sich aus dem nachfolgend beschriebenen Ausführungsbeispiel sowie aus den abhängigen Ansprüchen.Further advantages and features emerge from the exemplary embodiment described below and from the dependent claims.

Nachfolgend wird ein bevorzugtes Ausführungsbeispiel der Erfindung beschrieben und anhand der anliegenden Zeichnungen näher erläutert.

Fig. 1
zeigt eine erfindungsgemäße Lochpresse in einem Zustand vor einem ersten Umformvorgang und mit von einem Antriebsglied entkoppelter Stauchkappe.
Fig. 2
zeigt die Lochpresse aus Fig. 1 nach einer Verkoppelung der Stauchkappe mit dem Antriebsglied.
Fig. 3
zeigt die Lochpresse aus Fig. 2 nach einem Ansetzen der Stauchkappe an einem Werkstück.
Fig. 4
zeigt die Lochpresse aus Fig. 3 nach einem ersten Umformvorgang.
Fig. 5
zeigt die Lochpresse aus Fig. 4 nach einem Entkoppeln der Stauchkappe nach dem ersten Umformvorgang.
Fig. 6
zeigt die Lochpresse aus Fig. 5 nach einem zweiten Umformvorgang, wobei eine Lochkappe das Werkstück durchstoßen hat.
A preferred embodiment of the invention is described below and explained in more detail with reference to the accompanying drawings.
Fig. 1
shows a piercing press according to the invention in a state before a first forming process and with the upsetting cap decoupled from a drive member.
Fig. 2
shows the hole press Fig. 1 after coupling the compression cap to the drive member.
Fig. 3
shows the hole press Fig. 2 after placing the compression cap on a workpiece.
Fig. 4
shows the hole press Fig. 3 after a first forming process.
Fig. 5
shows the hole press Fig. 4 after decoupling the compression cap after the first forming process.
Fig. 6
shows the hole press Fig. 5 after a second forming process, wherein a perforated cap has pierced the workpiece.

In Fig. 1 bis Fig. 6 ist eine erfindungsgemäße Lochpresse in verschiedenen, chronologisch aufeinander folgenden Betriebszuständen dargestellt.In FIGS. 1 to 6 shows a piercing press according to the invention in different, chronologically consecutive operating states.

Die Lochpresse umfasst einen Aufnehmer 1, in der ein Werkstück 2 eingesetzt werden kann. Der Aufnehmer 1 ist hohlzylindrisch geformt, bezüglich einer Achse des Hohlzylinders senkrecht orientiert und hat eine zu Wartungszwecken wechselbare Innenwand in Form einer Hülse 1a. Das Werkstück wird von einem nicht dargestellten Manipulator in den Aufnehmer eingesetzt. Im vorliegenden Beispiel besteht das Werkstück aus einem Stahl und befindet sich auf einer Temperatur zur Warmumformung.The punch press comprises a receiver 1, in which a workpiece 2 can be inserted. The transducer 1 is shaped as a hollow cylinder, oriented vertically with respect to an axis of the hollow cylinder and has an inner wall in the form of a sleeve 1a that can be changed for maintenance purposes. The workpiece is inserted into the transducer by a manipulator (not shown). In the present example, the workpiece consists of a steel and is at a temperature for hot forming.

Am Boden des Aufnehmers 1 befindet sich ein Gegenhalter 3, der das Werkstück 2 von unten abstützt. Der Gegenhalter 3 kann am Ende eines Umformvorgangs oder zu Wartungszwecken entfernt werden. Im angesetzten Zustand hat der Gegenhalter die Funktion eines starren und unbeweglichen Bodens des Aufnehmers 1.At the bottom of the pickup 1 there is a counter holder 3 which supports the workpiece 2 from below. The counter holder 3 can be removed at the end of a forming process or for maintenance purposes. In the attached state, the counter holder has the function of a rigid and immovable bottom of the transducer 1.

Ein Lochdorn 4 ist an einer antreibbar bewegbaren Traverse 5 aufgenommen. Die Traverse 5 ist an nicht dargestellten Führungen eines Rahmens verschiebbar gelagert. Ein Antriebsglied 6 der Lochpresse wird vorliegend von der Traverse und einem auf die Traverse einwirkenden Hydraulikzylinder 6 gebildet. Die Traverse 5 wird durch den Hydraulikzylinder in der Erstreckungsrichtung des Lochdorns bewegt. Bei der Traverse 5 handelt es sich vorliegend um die einzige Traverse der Lochpresse.A piercer 4 is received on a drivably movable cross member 5. The traverse 5 is slidably mounted on guides, not shown, of a frame. A drive element 6 of the piercing press is formed in the present case by the crossbeam and a hydraulic cylinder 6 acting on the crossbeam. The traverse 5 is moved by the hydraulic cylinder in the direction of extension of the piercer. In the present case, the traverse 5 is the only traverse of the punch press.

Der Lochdorn 4 trägt an seinem dem Werkstück 2 zugewandten Ende eine auswechselbare Lochkappe 7.The piercing mandrel 4 has an exchangeable perforated cap 7 on its end facing the workpiece 2.

Eine Stauchkappe 8 umschließt den Lochdorn 4 nach Art eines Ringes und ist verschiebbar auf dem Lochdorn 4 geführt. In einer unteren Position der Stauchkappe 8 wird diese von der Lochkappe 7 als Anschlag gehalten. In dieser Position (siehe z.B. Fig. 1) fluchten eine dem Werkstück zugewandte Stauchfläche 8a der Stauchkappe 8 und eine dem Werkstück zugewandte Wirkfläche 7a der Lochkappe 7.A compression cap 8 surrounds the piercer 4 in the manner of a ring and is guided on the piercer 4 so as to be displaceable. In a lower position of the compression cap 8, this is held by the perforated cap 7 as a stop. In this position (see e.g. Fig. 1 ) a compression surface 8a of the compression cap 8 facing the workpiece and an active surface 7a of the perforated cap 7 facing the workpiece are aligned.

Ein Außenumfang der Stauchkappe 8 ist zudem so dimensioniert, dass die Stauchkappe 8 in dem Aufnehmer 1 verschiebbar geführt ist. Ein Spiel zwischen der Aufnehmerwand und der Stauchkappe 8 ist so gewählt, dass auch bei den auftretenden Temperaturen eine Beweglichkeit bei möglichst genauer Führung gewährleistet ist.An outer circumference of the compression cap 8 is also dimensioned such that the compression cap 8 is guided displaceably in the receptacle 1. A play between the transducer wall and the compression cap 8 is selected so that mobility is guaranteed with the most precise guidance possible even at the temperatures that occur.

Die auf dem Lochdorn 4 bewegbare Stauchkappe 8 kann in der unteren Position mittels eines Koppelglieds in Form einer Koppelstange 9 lösbar fixiert werden (siehe Fig. 2). Dabei wird die Koppelstange 9 zwischen einer Oberseite der Stauchkappe 8 und der Traverse 5 bzw. dem Antriebsglied der Lochpresse eingesetzt. Die Koppelstange 9 ist nach Art einer einseitig offenen Hülse geformt und umgibt den Lochdorn teilweise zum Zweck einer besseren Kraftverteilung.The compression cap 8, which is movable on the piercer 4, can be releasably fixed in the lower position by means of a coupling member in the form of a coupling rod 9 (see FIG Fig. 2 ). The coupling rod 9 is inserted between an upper side of the upsetting cap 8 and the cross member 5 or the drive member of the punch. The coupling rod 9 is shaped like a sleeve open on one side and partially surrounds the piercer for the purpose of better force distribution.

Die Koppelstange hat vorliegend einen im Wesentlichen teilkreisförmigen Querschnitt. Bei anderen Ausführungsformen können auch elliptische, polygonförmige oder sonstige Querschnittsformen vorliegen. Die Koppelstange kann auch aus mehreren Teilstangen bestehen, die an verschiedenen Positionen des Umfangs des Lochdorns angesetzt werden.In the present case, the coupling rod has an essentially part-circular cross section. In other embodiments, elliptical, polygonal or other cross-sectional shapes can also be present. The coupling rod can also consist of several sub-rods that are attached to different positions on the circumference of the piercer.

Im angesetzten Zustand verlaufen die Koppelstange, der Lochdorn und die Stauchkappe jeweils koaxial zueinander.In the attached state, the coupling rod, the piercer and the compression cap each run coaxially to one another.

Das Einsetzen und entnehmen der Koppelstange 9 erfolgt mittels eines automatisierten Manipulators, der vorliegend nicht dargestellt ist.The coupling rod 9 is inserted and removed by means of an automated manipulator, which is not shown here.

Weiterhin ist im unteren Endbereich des Aufnehmers 1 über dem Gegenhalter 3 ein Scherring 10 angeordnet. Mittels des Scherring 10 kann am Ende des Umformvorgangs ein Boden des dann gelochten Werkstücks durchstoßen werden.Furthermore, a shear ring 10 is arranged in the lower end region of the transducer 1 above the counter holder 3. By means of the shear ring 10, a bottom of the then perforated workpiece can be pierced at the end of the forming process.

Die Erfindung funktioniert nun wie folgt:
Zunächst wird ein auf Umformtemperatur erhitztes Werkstück, zum Beispiel in Form eines Stahlknüppels, in den Aufnehmer 1 eingesetzt. In der Darstellung nach Fig. 1 ist die Stauchkappe 8 zunächst von dem Antriebsglied 5, 6 entkoppelt bzw. die Koppelstange 9 greift nicht ein.The invention now works as follows:
First, a workpiece heated to the forming temperature, for example in the form of a steel billet, is inserted into the transducer 1. In the representation after Fig. 1 the compression cap 8 is initially decoupled from the drive member 5, 6 or the coupling rod 9 does not engage.

Nachfolgend wird die Koppelstange 9 an den Lochdorn 4 angesetzt, so dass eine kraftschlüssige Abstützung zwischen der Traverse 5 und der am unteren Anschlag befindlichen Stauchkappe 8 hergestellt wird (siehe Fig. 2).Subsequently, the coupling rod 9 is attached to the piercing mandrel 4, so that a force-fit support between the cross-member 5 and the compression cap 8 located at the lower stop is established (see FIG Fig. 2 ).

Dann wird der Lochdorn 4 mit der Lochkappe 7 und der Stauchkappe 8 in den Aufnehmer 1 eingefahren, bis die Stauchfläche 8a und die Wirkfläche 7a an dem Werkstück 2 anliegen (siehe Fig. 3).Then the piercer 4 with the perforated cap 7 and the compression cap 8 is moved into the receptacle 1 until the compression surface 8a and the active surface 7a are in contact with the workpiece 2 (see FIG Fig. 3 ).

Nun wird mittels des Hydraulikzylinders 6 eine Stauchkraft ausgeübt, so dass das Werkstück 2 im Zuge einer ersten Umformung vorgestaucht wird (siehe Fig. 4). Nach der Vorstauchung bzw. ersten Umformung füllt das Werkstück 2 den Aufnehmer in Querrichtung zumindest so weit aus, dass kein freies Bewegungsspiel in Querrichtung mehr besteht.An upsetting force is now exerted by means of the hydraulic cylinder 6, so that the workpiece 2 is pre-upset in the course of a first deformation (see FIG Fig. 4 ). After the pre-upsetting or first reshaping, the workpiece 2 fills the transducer at least so far in the transverse direction that there is no longer any free movement in the transverse direction.

Nachfolgend wird die Koppelstange 9 entfernt und die Stauchkappe 8 somit von dem Antriebsglied 5, 6 entkoppelt, um eine zweite Umformung bzw. die eigentliche Lochung des Werkstücks 2 zu ermöglichen (siehe Fig. 5).The coupling rod 9 is then removed and the compression cap 8 is thus decoupled from the drive element 5, 6 in order to enable a second deformation or the actual perforation of the workpiece 2 (see FIG Fig. 5 ).

Gemäß Fig. 6 wird nun der Lochdorn 4 mit der Lochkappe 7 weiter vorgetrieben, so dass die Lochkappe 7 im Zuge eines Fließpressens eine Lochung des Werkstücks 2 vornimmt. Dabei steigt eine Oberkante des Werkstücks entsprechend dem verdrängten Material in dem Aufnehmer 1 an (steigende Lochung). Die dabei frei auf dem Lochdorn 4 verschiebbare Stauchkappe 8 wird mit dem Werkstückrand nach oben gedrückt. Die Stauchkappe übt dabei kontinuierlich eine führende Funktion für den Lochdorn 4 aus, so dass ein seitliches Auswandern der Lochkappe 7 optimal vermieden wird. Insbesondere erfolgt eine Querführung des Lochdorns und somit der Lochkappe während des über die Wand des Aufnehmers 1, wobei die Stauchkappe 8 als außen und innen führendes Zwischenglied zwischen dem Lochdorn 4 und der Wand des Aufnehmers 1 fungiert.According to Fig. 6 the piercing mandrel 4 with the perforated cap 7 is now advanced further so that the perforated cap 7 perforates the workpiece 2 in the course of extrusion. In the process, an upper edge of the workpiece rises in accordance with the displaced material in the transducer 1 (rising perforation). The compression cap 8, which is freely displaceable on the piercer 4, is pressed upwards with the edge of the workpiece. The upsetting cap continuously exercises a leading function for the piercing mandrel 4, so that the perforated cap 7 is optimally prevented from moving sideways. In particular, the piercing pin and thus the perforated cap are guided transversely during the over the wall of the transducer 1, the compression cap 8 functioning as an outside and inside leading intermediate member between the piercing mandrel 4 and the wall of the transducer 1.

Zuletzt wird die Lochkappe durch den Scherring 10 hindurch gedrückt, wobei der Gegenhalter gegebenenfalls zurückgefahren wird. Dies erlaubt die Entfernung eines verbleibenden Bodens des Werkstücks 2, so dass eine vollständige Durchlochung erzielt wird.Finally, the perforated cap is pressed through the shear ring 10, the counter holder being moved back if necessary. This allows a remaining bottom of the workpiece 2 to be removed so that a complete perforation is achieved.

BezugszeichenlisteList of reference symbols

11
Aufnahmeadmission
1a1a
wechselbare Innenhülseexchangeable inner sleeve
22
Werkstückworkpiece
33
GegenhalterCounterholder
44th
LochdornPiercer
55
Traversetraverse
66
HydraulikzylinderHydraulic cylinder
77th
LochkappePerforated cap
7a7a
Wirkfläche der LochkappeEffective area of the perforated cap
88th
StauchkappeCompression cap
8a8a
Stauchfläche der StauchkappeCompression surface of the compression cap
99
Koppelglied, KoppelstangeCoupling link, coupling rod
1010
ScherringShear ring

Claims (9)

  1. Perforating press comprising
    a receiver (1) which is of, in particular, hollow-cylindrical shape, for reception of a workpiece (2),
    an upsetting cap (8),
    wherein the upsetting cap (8) can be pressed with an upsetting force against the workpiece (2) for a first deformation of the workpiece (2), and
    a perforating cap (7) arranged at a perforating mandrel (4),
    wherein the perforating cap (7) can be pressed by a perforating force into the workpiece (2) for a second deformation of the workpiece (2),
    characterised in that
    not only the upsetting force of the upsetting cap (8), but also the perforating force of the perforating cap (7) are exerted by means of a common drive element (5, 6), wherein the perforating press has in total only one cross member (5).
  2. Perforating press according to claim 1, characterised in that a force couple between the upsetting cap (8) and the drive element (5, 6) is producible by way of a detachable coupling element (9).
  3. Perforating press according to claim 2, characterised in that the coupling element comprises at least one coupling rod (9) which is placeable between a cross-member (5) and the upsetting cap (8).
  4. Perforating press according to any one of the preceding claims, characterised in that the upsetting cap (8) is displaceably mounted on the perforating mandrel (4).
  5. Perforating press according to claim 6, characterised in that the upsetting cap (8) has an upsetting surface (8a) aligned with the perforating cap (7), wherein the first deformation takes place by a common pressing of the upsetting surface (8a) and the perforating cap (7) against the workpiece (2).
  6. Perforating press according to claim 4 to 5, characterised in that the upsetting cap (8) is displaceably guided in the receiver (1).
  7. Perforating press according to any one of claims 4 to 6, characterised in that the upsetting cap (8) during the second deformation bears in force-free manner against the workpiece (2) and is moved into the receiver (1) together with deformation of the workpiece (2).
  8. Perforating press according to any one of claims 4 to 7, characterised in that guidance of the perforating mandrel (4) relative to the receiver (1) is carried out by the upsetting cap (8) during the second deformation.
  9. Perforating press according to any one of the preceding claims, characterised in that a shearing ring (10) is arranged at the receiver (1), wherein a base of the perforated workpiece (2) is separated by means of the shearing ring (10).
EP17736591.3A 2016-06-28 2017-06-27 Perforating press Active EP3475010B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016211597.9A DE102016211597A1 (en) 2016-06-28 2016-06-28 punch press
PCT/EP2017/065870 WO2018002060A1 (en) 2016-06-28 2017-06-27 Perforating press

Publications (2)

Publication Number Publication Date
EP3475010A1 EP3475010A1 (en) 2019-05-01
EP3475010B1 true EP3475010B1 (en) 2020-11-25

Family

ID=59295173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17736591.3A Active EP3475010B1 (en) 2016-06-28 2017-06-27 Perforating press

Country Status (4)

Country Link
EP (1) EP3475010B1 (en)
CN (1) CN109414752B (en)
DE (1) DE102016211597A1 (en)
WO (1) WO2018002060A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3149400A1 (en) * 1980-12-18 1982-09-09 Mannesmann AG, 4000 Düsseldorf PRESS FOR MACHINING METAL PARTS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765528A (en) * 1951-08-22 1956-10-09 Comptoir Ind Etirage Method of perforating a heated billet and disc
US2812673A (en) * 1953-08-14 1957-11-12 Babcock & Wilcox Co Mandrel guiding arrangement for billet piercing apparatus
US3345853A (en) * 1965-03-23 1967-10-10 Babcock & Wilcox Co Work feeding method and apparatus for piercing press
JPS5662638A (en) * 1979-10-23 1981-05-28 Kobe Steel Ltd Piercing method
CN101690965B (en) * 2009-10-10 2011-05-04 济南中森机械制造有限公司 Hot extrusion forming process of half-shaft casings and special device
DE102014014042B4 (en) * 2014-09-26 2018-08-02 Sms Group Gmbh Multi-axis forging press and method for operating a multi-axis forging press

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3149400A1 (en) * 1980-12-18 1982-09-09 Mannesmann AG, 4000 Düsseldorf PRESS FOR MACHINING METAL PARTS

Also Published As

Publication number Publication date
EP3475010A1 (en) 2019-05-01
WO2018002060A1 (en) 2018-01-04
CN109414752B (en) 2020-06-12
CN109414752A (en) 2019-03-01
DE102016211597A1 (en) 2017-12-28

Similar Documents

Publication Publication Date Title
DE112010005886B4 (en) Method and device for producing a crankshaft
EP1986801B1 (en) Method and device for producing a cutout or aperture in the wall of a component formed according to the hydroforming process
DE102009016654A1 (en) Production process of pipe material
WO2006024281A1 (en) Method for producing wheel hub blanks on a compressive forming machine
WO2010037551A2 (en) Method and device for the non-cutting production of an outside thread on hollow metal work pieces
DE2415549B2 (en) Device for the non-cutting cold forming of a blank
EP2641673A2 (en) Method and apparatus for producing a connecting section as part of a tool
EP2484462B1 (en) Method for producing a forge preform and warm upsetting device
EP2902130B1 (en) Reforming tool with perforating punch
DE102018215545A1 (en) Process for producing a press hardened sheet metal part and press hardening tool
DE4401674C2 (en) Method and device for punching workpieces
DE19639677B4 (en) Method and device for producing the outer element of a universal joint with cross grooves
EP3436208B1 (en) Method for producing a moulded body comprising a hub and device for carrying out the method
DE102014212732B4 (en) Process and upsetting device for the production of offset workpieces such as shafts or rods
EP3475010B1 (en) Perforating press
EP2030701A1 (en) Tool and method for producing a hollow body
DE69419206T2 (en) Method and device for manufacturing a metallic part
DE10042896B4 (en) Method for producing a ring element
DE69024059T2 (en) DEVICE AND METHOD FOR PUNCHING BLOCKS.
EP1250199B1 (en) Method and forming tool for the production of cylindrical tubes by extrusion
DE19943805B4 (en) Method for demolding a stamp from a hollow object and tool for machining grooves on the inner lateral surface of such a hollow object
DE102009030600A1 (en) Production process of pipe material
EP2506996B1 (en) Method and device for producing a molded part provided with a through-hole
DE2413745A1 (en) METHOD AND DEVICE FOR FORMING METAL PARTS BY COLD PRESSING
DE1034458B (en) Method and apparatus for making seamless rings

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190128

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20190517

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200622

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017008369

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1337697

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20201125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210325

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210225

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210226

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210325

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210225

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502017008369

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

26N No opposition filed

Effective date: 20210826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210627

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210627

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210627

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210627

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210325

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170627

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1337697

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220627

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220627

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230623

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201125

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240619

Year of fee payment: 8