DE2131811A1 - Device for deep drawing tubular workpieces - Google Patents
Device for deep drawing tubular workpiecesInfo
- Publication number
- DE2131811A1 DE2131811A1 DE19712131811 DE2131811A DE2131811A1 DE 2131811 A1 DE2131811 A1 DE 2131811A1 DE 19712131811 DE19712131811 DE 19712131811 DE 2131811 A DE2131811 A DE 2131811A DE 2131811 A1 DE2131811 A1 DE 2131811A1
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- deep drawing
- workpiece
- tubular workpieces
- inner part
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/045—Closing or sealing means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
Vorrichtung zum Tiefziehen rohrförmiger Werkstücke In vielen Gebieten der Technik müssen ursprünglich rohrförmige Werkstücke so verändert werden, daß der Mantel Ausbuchtungen verschiedener Formen aufweist. Beispielsweise muß bei Trommelwaschmaschinen mit horizontaler Trommelachse, bei denen der die Trommel aufnehmende Laugenbehälter ebenfalls zylindrisch ist, der Mantel dieses Behälters mit verschiedenen Ausbuchtungen versehen werden, die zur Aufnahme eines Heizregisters, einer Kondensationseinrichtung oder dgl. dienen sollen.Device for deep drawing tubular workpieces In many areas the technology originally tubular workpieces must be changed so that the jacket has bulges of various shapes. For example, in drum washing machines with a horizontal drum axis, in which the tub receiving the drum is also cylindrical, the jacket of this container with various bulges are provided, which to accommodate a heating register, a condensation device or the like. To serve.
Um rohrförmige Werkstücke in dem vorerwähnten Sinne verformen zu können, ist es bekannt, die rohrförmigen Werkstücke von der Innenseite her durch Schieber oder dgl. in die gewünschte Form zu bringen, also gewissermaßen einen Tiefziehvorgang in mehreren Schritten durchzuführen. Das bekannte Verfahren ist aber relativ aufwendig und damit auch teuer, weil die Ziehstempel und deren Antriebe weitgehend im Innenraum der rohrförmigen Werkstücke angeordnet werden müssen.In order to be able to deform tubular workpieces in the aforementioned sense, it is known to push the tubular workpieces from the inside through slides or the like. In the desired shape, so to speak a deep-drawing process to be carried out in several steps. However, the known method is relatively complex and therefore also expensive, because the drawing punches and their drives are largely in the interior the tubular workpieces must be arranged.
Die Erfindung bezieht sich auf eine Vorrichtung zum Tiefziehen rohrförmiger Werkstücke, bei der die Matrize als eine das rohrförmige Werkstück umschließende teilbare Form ausgebildet ist und zielt darauf ab, mit wesentlich einfacheren Mitteln den Verformungsprozeß zu bewirken. Zur Lösung dieser Aufgabe wird gemäß der Erfindung vorgeschlagen, daß auf der Innenseite des rohrförmigen Werkstückes ein zylindrisches Innenteil angeordnet ist, an dessen Enden mittels Druckringen und Druckplatten zusammenpreßbare Gummiringe vorgesehen sind und das mit einer Zuleitung für eine Druckflüssigkeit versehen ist, die die Flüssigkeit in den Raum zwischen dem rohrförmigen Werkstück und dem zylindrischen Innenteil zu leiten gestattet.The invention relates to a device for deep drawing tubular Workpieces in which the die as one surrounding the tubular workpiece divisible form is designed and aims to use much simpler means to cause the deformation process. To solve this problem, according to the invention suggested that on the inside of the tubular workpiece a cylindrical Inner part is arranged, at the ends of which can be compressed by means of pressure rings and pressure plates Rubber rings are provided and that with a supply line for a pressure fluid is provided that the liquid in the space between the tubular workpiece and allowed to guide the cylindrical inner part.
Auf diese Weise kommt man zu einer ohne mechanischen Ziehstempel arbeitenden Vorrichtung, bei der allein die Negativform vorhanden sein muß. Durch den Ersatz des mechanischen Ziehstempels durch--eine Druckflüssigkeit wird die Oberfläche des zu verformenden Materials außerordentlich -schonend behandelt. Es treten auf keinen Fall Ziehriefen auf. Aus der Deutschen Patentschrift 1 240 801 ist ein hydraulisches Tiefziehverfahren bekannt. Dabei handelt es sich jedoch gegenüber dem Gegenstand der Erfindung um ein umgekehrt arbeitendes Verfahren, bei dem ein mechanischer Ziehstempel vorgesehen ist, währund die Negativform durch eine Druckflüssigkeit ersetzt wird. In this way you get one without a mechanical punch working device in which only the negative form must be present. By the replacement of the mechanical drawing punch by - the surface becomes a pressure fluid of the material to be deformed extremely gently. There occur no draw marks. From the German patent specification 1 240 801 is a hydraulic Known deep drawing process. However, this is the case with respect to the object of the invention to a reverse working method in which a mechanical drawing punch is provided, while the negative form is replaced by a pressure fluid.
Dieses bekannte Verfahren ist aber nicht in der Lage, die eingangs erwähnte Aufgabe zu lösen.However, this known method is not capable of the above to solve the mentioned task.
Die Erfindung wird anhand eines Ausführungsbeispieles im einzelnen erläutert.The invention is explained in detail on the basis of an exemplary embodiment explained.
In der einzigen Figur der Zeichnung ist die neue Tiefziehvorrichtung anhand eines schematisierten Schnittes dargestellt.In the only figure of the drawing is the new deep-drawing device shown on the basis of a schematic section.
Der linke Teil der Figur zeigt dabei die Ausgangsstellung, während auf der rechten-Seite die Arbeitsposition wiedergegeben ist.The left part of the figure shows the starting position while the working position is shown on the right-hand side.
Die teilbare Negativform 10, in der die endgültige Form des Werkstückes eingearbeitet bzw. in Form von Segmenten eingesetzt ist, ist im wesentlichen ringförmig ausgebilde#t und so fest ausgeführt, daß sie sehr hohe Drücke aufnehmen kann. Der von ihr umschlossene zylindrische Ringinnenraum wird weitgehend mit einem zylindrischen Innenteil 20 ausgefüllt. Im Spalt 19 zwischen Negativform 10 und zylindrischem Innenteil 20 wird das rohrförmige Werkstück 30 eingeführt.The divisible negative mold 10, in which the final shape of the workpiece is incorporated or used in the form of segments, is essentially ring-shaped designed and made so solid that it can absorb very high pressures. Of the from it enclosed cylindrical ring interior is largely with a cylindrical Inner part 20 filled out. In the gap 19 between the negative mold 10 and the cylindrical inner part 20 the tubular workpiece 30 is inserted.
An den Enden des zylindrischen Innenteiles sind Gummiringe 21 zwischen Druckringen 22 gelagert. Die Druckringe können durch eine Vorspanneinrichtung in Form von Druckplatten 23 zusammen^ gepreßt und dadurch-in eine im rechten Teil der Figur dargestellte Form gebracht werden. In den Spalt 19 kann eine unter Druck stehende Flüssigkeit durch die Zuführungsleitung 25 des zylindrischen Innenteils geleitet werden.At the ends of the cylindrical inner part, rubber rings 21 are between Pressure rings 22 mounted. The pressure rings can be in Form of pressure plates 23 pressed together ^ and thereby-in one in the right part of the Figure are brought into shape. In the gap 19 can be a pressure standing liquid through the supply line 25 of the cylindrical inner part be directed.
Arbeitsablauf: Das Ausgangswerkstück besteht aus einem auf Länge geschnittenen, gerollten und dicht geschweißten Werkstück, das in den Spalt zwischen Negativform und zylindrischem Innenteil eingeführt wird. über die Vorspanneinrichtungen werden die Gummiringe von innen gegen das Werkstück gepreßt. Hierbei erfolgt im Bereich der Gummiringe ein Aufweiten des Werkstückes bis zur Anlage an die Negativform. Außerdem wird zwischen den Gummiringen ein nach außen hin abgedichteter Raum gebildet.Workflow: The initial workpiece consists of a cut to length, rolled and tightly welded workpiece that is in the gap between negative mold and cylindrical inner part is inserted. over the pretensioning devices the rubber rings are pressed against the workpiece from the inside. This takes place in the area the rubber rings expand the workpiece until it touches the negative mold. In addition, a space sealed off from the outside is formed between the rubber rings.
In diesen wird unter hohen Druck stehende Flüssigkeit eingepumpt, beispielst,reise öl oder Wasser von mehreren hundert Atmosphären. Der nohe Flüssigkeitsdruck weitet das Werkstück und drückt es an die Wände der Außenform. Weil dabei das Material nahezu auf der ganzen Fläche nachfließen kann, werden ausgezeichnete Dehnangsverhältnisse erreicht. Eine Faltenbildung tritt am Material nicht auf. Die Güte der- Ausformung und die Maßgenauigkeit des Werkstückes hängen von Werkstoffart, Werkstoffdicke und vom Flüssigkeitsdruck ab. Die Gummiringe üben keine Bremswirkung auf das von außen nachlaufende Blech -aus. Sie bleiben trotz der Reibung einwandfrei dicht.Liquid under high pressure is pumped into this, for example, travel oil or water from several hundred atmospheres. The low fluid pressure expands the workpiece and presses it against the walls of the outer mold. Because it is the material can flow over almost the entire surface, there are excellent expansion ratios achieved. The material does not wrinkle. The quality of the molding and the dimensional accuracy of the workpiece depend on the type of material, material thickness and on the fluid pressure. The rubber rings have no braking effect on the outside trailing sheet metal -from. They remain perfectly tight despite the friction.
2 Ansprüche 1 Figur2 claims 1 figure
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712131811 DE2131811A1 (en) | 1971-06-23 | 1971-06-23 | Device for deep drawing tubular workpieces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712131811 DE2131811A1 (en) | 1971-06-23 | 1971-06-23 | Device for deep drawing tubular workpieces |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2131811A1 true DE2131811A1 (en) | 1972-12-28 |
Family
ID=5811877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19712131811 Pending DE2131811A1 (en) | 1971-06-23 | 1971-06-23 | Device for deep drawing tubular workpieces |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2131811A1 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0055101A2 (en) * | 1980-12-19 | 1982-06-30 | Haskel, Inc. | Apparatus and method for hydraulically forming joins between tubes and tube sheets |
EP0099307A1 (en) * | 1982-07-12 | 1984-01-25 | CEZUS Compagnie Européenne du Zirconium | Method of and device for the local forming of large length metallic tubes by precise expansion |
FR2531883A1 (en) * | 1982-08-23 | 1984-02-24 | Trane Co | PROCESS FOR PRE-EXPANSION OF HEAT EXCHANGER TUBE |
US4770015A (en) * | 1985-12-04 | 1988-09-13 | Usinor Aciers | Process and device for press-forming sheet material having a small elongation |
EP0372360A2 (en) * | 1988-12-05 | 1990-06-13 | Rainer Dipl.-Ing. Kuhn | Method of making tubular construction parts |
DE3840938A1 (en) * | 1988-12-05 | 1990-06-13 | Kuhn Rainer | Method for the production of tubular components |
EP0521637A1 (en) * | 1991-07-04 | 1993-01-07 | CarnaudMetalbox plc | Apparatus and method for reshaping containers |
US5187962A (en) * | 1991-07-04 | 1993-02-23 | Cmb Foodcan Plc | Apparatus and method for reshaping containers |
US5746080A (en) * | 1995-10-02 | 1998-05-05 | Crown Cork & Seal Company, Inc. | Systems and methods for making decorative shaped metal cans |
US5829290A (en) * | 1996-02-14 | 1998-11-03 | Crown Cork & Seal Technologies Corporation | Reshaping of containers |
US5832766A (en) * | 1996-07-15 | 1998-11-10 | Crown Cork & Seal Technologies Corporation | Systems and methods for making decorative shaped metal cans |
US5938389A (en) * | 1996-08-02 | 1999-08-17 | Crown Cork & Seal Technologies Corporation | Metal can and method of making |
DE19854114A1 (en) * | 1998-11-24 | 2000-05-25 | Volkswagen Ag | Internal high pressure forming tool used for cross struts of motor vehicles has upper and lower parts divided into replaceable segments in longitudinal work piece direction for more flexible use |
NL1014268C2 (en) * | 2000-02-02 | 2001-08-03 | Corus Staal Bv | Thin-walled metal tube has temporary closures at each end whilst fluid overpressure applied internally causes plastic deformation against surrounding mould |
ITUA20162257A1 (en) * | 2016-04-01 | 2017-10-01 | Bertini Macch S R L | Machine for forming and shaping a metal tube, like a tube |
DE102018119614B4 (en) * | 2018-08-13 | 2021-05-20 | Miele & Cie. Kg | Internal pressure forming process for forming a hollow cylinder and device for its implementation |
-
1971
- 1971-06-23 DE DE19712131811 patent/DE2131811A1/en active Pending
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0055101A2 (en) * | 1980-12-19 | 1982-06-30 | Haskel, Inc. | Apparatus and method for hydraulically forming joins between tubes and tube sheets |
EP0055101A3 (en) * | 1980-12-19 | 1983-05-18 | Haskel, Inc. | Apparatus and method for hydraulically forming joins between tubes and tube sheets |
EP0099307A1 (en) * | 1982-07-12 | 1984-01-25 | CEZUS Compagnie Européenne du Zirconium | Method of and device for the local forming of large length metallic tubes by precise expansion |
FR2531882A1 (en) * | 1982-07-12 | 1984-02-24 | Cezus Co Europ Zirconium | METHOD AND APPARATUS FOR PRECISION EXPANSION LOCAL FORMING FOR HIGH LENGTH METAL TUBES |
FR2531883A1 (en) * | 1982-08-23 | 1984-02-24 | Trane Co | PROCESS FOR PRE-EXPANSION OF HEAT EXCHANGER TUBE |
US4770015A (en) * | 1985-12-04 | 1988-09-13 | Usinor Aciers | Process and device for press-forming sheet material having a small elongation |
EP0372360A2 (en) * | 1988-12-05 | 1990-06-13 | Rainer Dipl.-Ing. Kuhn | Method of making tubular construction parts |
DE3840938A1 (en) * | 1988-12-05 | 1990-06-13 | Kuhn Rainer | Method for the production of tubular components |
EP0372360A3 (en) * | 1988-12-05 | 1991-03-20 | Rainer Dipl.-Ing. Kuhn | Method of making tubular construction parts |
US5187962A (en) * | 1991-07-04 | 1993-02-23 | Cmb Foodcan Plc | Apparatus and method for reshaping containers |
EP0521637A1 (en) * | 1991-07-04 | 1993-01-07 | CarnaudMetalbox plc | Apparatus and method for reshaping containers |
US5960659A (en) * | 1995-10-02 | 1999-10-05 | Crown Cork & Seal Company, Inc. | Systems and methods for making decorative shaped metal cans |
US5746080A (en) * | 1995-10-02 | 1998-05-05 | Crown Cork & Seal Company, Inc. | Systems and methods for making decorative shaped metal cans |
US5829290A (en) * | 1996-02-14 | 1998-11-03 | Crown Cork & Seal Technologies Corporation | Reshaping of containers |
US5970767A (en) * | 1996-07-15 | 1999-10-26 | Crown Cork & Seal Technologies Corporation | Systems and methods for making decorative shaped metal cans |
US5832766A (en) * | 1996-07-15 | 1998-11-10 | Crown Cork & Seal Technologies Corporation | Systems and methods for making decorative shaped metal cans |
US5938389A (en) * | 1996-08-02 | 1999-08-17 | Crown Cork & Seal Technologies Corporation | Metal can and method of making |
DE19854114A1 (en) * | 1998-11-24 | 2000-05-25 | Volkswagen Ag | Internal high pressure forming tool used for cross struts of motor vehicles has upper and lower parts divided into replaceable segments in longitudinal work piece direction for more flexible use |
DE19854114B4 (en) * | 1998-11-24 | 2007-02-15 | Volkswagen Ag | Internal high pressure forming tool |
NL1014268C2 (en) * | 2000-02-02 | 2001-08-03 | Corus Staal Bv | Thin-walled metal tube has temporary closures at each end whilst fluid overpressure applied internally causes plastic deformation against surrounding mould |
ITUA20162257A1 (en) * | 2016-04-01 | 2017-10-01 | Bertini Macch S R L | Machine for forming and shaping a metal tube, like a tube |
EP3228398A1 (en) * | 2016-04-01 | 2017-10-11 | Bertini Macchine S.r.l. | Machine for forming and profiling a metal tubular product, like a pipe |
DE102018119614B4 (en) * | 2018-08-13 | 2021-05-20 | Miele & Cie. Kg | Internal pressure forming process for forming a hollow cylinder and device for its implementation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2131811A1 (en) | Device for deep drawing tubular workpieces | |
DE2253351C3 (en) | Device for the magnetic deformation of tubular, metallic workpieces | |
DE1627722C3 (en) | Process for the powder metallurgical production of rods and tubes | |
DE2619680C3 (en) | Device for electro-hydraulic forming | |
DE1954381C3 (en) | Device for producing a transversely corrugated plastic pipe | |
DE1527380B2 (en) | Device for the production of bent pipe pieces | |
DE1303671C2 (en) | DEVICE FOR THE CONTINUOUS GENERATION OF RING-SHAPED WAVES ON A TUBE | |
DE2208826C3 (en) | Device for the conical expansion of cylindrical tubes | |
DE1527969A1 (en) | Method and device for the production of triple folds on bottoms of metal containers, vats or the like. | |
DE1929558A1 (en) | Cold extrusion press | |
EP0865845A1 (en) | Method for holding together split molds or dies subjected to internal pressure and device for carrying out the method | |
DE900085C (en) | Device for the production of hollow bodies from sheet metal under hydraulic pressure | |
DE1801179C3 (en) | Device for forming a circumferential bead in the wall of a pipe end | |
DE2400828A1 (en) | DEEP-DRAWING TOOL FOR DEEP-DRAWING | |
DE1933347A1 (en) | Production of deep drawn parts | |
DE2412158C3 (en) | Device for the hydromechanical drawing of graduated drawn parts | |
DE962491C (en) | Device for generating local reinforcements on cylindrical hollow bodies | |
DE1932137A1 (en) | Cold-forming steel vessels from rod sections | |
DE961798C (en) | Press, preferably for the production of boiler shots | |
DE1527380C (en) | Device for the production of bent pipe sections | |
DE2224527C3 (en) | Device for hot drawing in of pipe ends | |
DE749722C (en) | Method and device for the production of stiffening beads and the Endfalzboerdel on round sheet metal shells | |
DE1275333B (en) | Clamping device for winding rolls or winding sleeves on a shaft | |
DE2351518C3 (en) | Hydro-drawing process for the production of rotationally symmetrical molded parts from sheet metal and equipment for its implementation | |
DE1950383C3 (en) | Device for carrying out a method for producing pipes from plastic |