DE915324C - Device for the production of hollow bodies from sheet metal under hydraulic pressure - Google Patents

Device for the production of hollow bodies from sheet metal under hydraulic pressure

Info

Publication number
DE915324C
DE915324C DEK1558A DEK0001558A DE915324C DE 915324 C DE915324 C DE 915324C DE K1558 A DEK1558 A DE K1558A DE K0001558 A DEK0001558 A DE K0001558A DE 915324 C DE915324 C DE 915324C
Authority
DE
Germany
Prior art keywords
sheet metal
production
hollow bodies
hydraulic pressure
die
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.)
Expired
Application number
DEK1558A
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEK1558A priority Critical patent/DE915324C/en
Application granted granted Critical
Publication of DE915324C publication Critical patent/DE915324C/en
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02Shaping 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
    • B21D26/021Deforming sheet bodies
    • B21D26/025Means for controlling the clamping or opening of the moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02Shaping 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02Shaping 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
    • B21D26/021Deforming sheet bodies
    • B21D26/029Closing 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

Gemäß dem Patent goo o85 ist die die Blechplatte aufnehmende Matrize durch einen Deckel flüssigkeitsdicht abgeschlossen, wobei die Oberfläche der Matrize und die des Deckels durch einen zwischen ihnen eingelegten Distanzring einen Spalt ausbilden, in dem die ebene Platte bei sie umgebender Druckflüssigkeit während des Ziehens gleitet.According to patent goo o85, the die holding the sheet metal plate is sealed liquid-tight by a lid, the surface of the die and that of the cover through a spacer ring inserted between them a gap form, in which the flat plate with surrounding pressure fluid during the Pulling slides.

Bei der Verarbeitung düniler Bleche erfordert eine tiefere Verformung eine sehr genaue Begrenzung des Reibungswiderstandes. Hierbei ergeben auftretende Falten eine nicht abschätzbare Änderung der Kräfte, so daß die Zieharbeit beeinträchtigt wird.When processing thin sheets, a deeper deformation is required a very precise limitation of the frictional resistance. This results in occurring Fold an incalculable change in the forces, so that the drawing work is impaired will.

Die Erfindung bezweckt, durch federnd ausweichbare Ausbildung der einen Spaltwandung zu ermöglichen, nur den zur Vermeidung von Ziehfalten nötigen Druck zur Wirkung zu bringen.The aim of the invention is by resiliently evasive training of the to enable a gap wall, only those necessary to avoid drawing folds Bringing pressure to work.

Zu diesem Zweck ist gemäß der Erfindung an dem durch einen Distanzring gegen die Matrize fest und abgedichtet abgestützten Deckel eine federnde Faltenhalterplatte angeordnet, die sich nicht gegen die Matrizenfläche anlegt. Hierdurch wird der Reibungswiderstand beim Ziehen so fein begrenzt, daß Teile, die sonst in mehreren Zügen gezogen werden müssen, in einem Zug verformt werden können.For this purpose, according to the invention on that by a spacer ring a resilient fold holder plate, which is firmly supported against the die in a sealed manner arranged that does not lie against the die surface. This will reduce the frictional resistance so finely limited when pulling that parts that would otherwise be pulled in several pulls must be able to be deformed in one go.

Um eine einfache Einstellung des Faltenhalterdruckes bei gegebener Federspannung zu erzielen, ist gemäß der Erfindung der die Arbeitsstellung der Fältenhalterplatte begrenzende Distanzring auswechselbar angeordnet.In order to make it easy to adjust the fold holder pressure at a given Achieving spring tension is, according to the invention, the working position of the fold holder plate limiting spacer ring arranged interchangeably.

Infolge dieser Maßnahme kann ohne zeitraubende Arbeitsunterbrechung eine Anpassung an geringfügig wechselnde Blechstärken vorgenommen werden.As a result of this measure, work can be carried out without a time-consuming interruption an adaptation to slightly changing sheet thicknesses can be made.

In der Zeichnung ist eine beispielsweise Ausführungsform der Erfindung in einem Längsschnitt dargestellt.In the drawing is an exemplary embodiment of the invention shown in a longitudinal section.

Die Matrize i ist durch einen Deckel 2 abgeschlossen. Die Matrizenhöhlung 3 ist Beispielsweise für die Fertigung von Eimern ausgebildet. Zwischen der Oberfläche der Matrize i und der Unterseite des Deckels 2 ist ein Distanzring eingelegt, der auch den. Innenraum der Matrize flüssigkeitsdicht abdichtet.The die i is closed by a cover 2. The die cavity 3 is designed for the manufacture of buckets, for example. Between the surface the die i and the underside of the cover 2, a spacer ring is inserted, the also the. Seals the interior of the die in a liquid-tight manner.

Der Faltenhalter 6 besteht aus einem blank geschliffenen Druckstück, welches durch eine elastische Unterlage 5 abgestützt oder durch Federn 8 im Deckel ausweichbar gehalten wird.The fold holder 6 consists of a bare ground pressure piece, which is supported by an elastic pad 5 or by springs 8 in the lid is kept evasive.

Anschlagschrauben io, die in flüssigkeitsdicht abgesperrten Haltebohrungen i i sitzen, begrenzen den Vorschub der Faltenhalterplatte 6. Die zu verarbeitende Blechplatte 7wird zwischen der Oberfläche der Matrize i und dem Faltenhalter 6 eingelegt. Die Druckstärke wird durch die Wahl der Abmessung des Distanzringes q. so begrenzt, daß sich keine Falten bilden. können, aber noch ein so großer Zwischenraum verbleibt, daß durch eine feine Flüssigkeitsschicht eine flüssige Reibung gewährleistet wird.Stop screws io, which are in liquid-tight locked retaining bores i i sit, limit the advance of the fold holder plate 6. The Sheet metal plate 7 is inserted between the surface of the die i and the fold holder 6. The pressure strength is determined by the choice of the dimensions of the spacer ring q. so limited that no wrinkles form. can, but no matter how big a gap remains, that a liquid friction is guaranteed by a fine layer of liquid.

Wird. die Druckleitung g geöffnet, so tritt die Preßflüssigkeit ein und drückt die Blechplatte 7 in die Formhöhlung 3, welche ebenfalls mit einer Flüssigkeit gefüllt ist. Diese fließt durch die Abflußleitung 1a, in welcher ein Reduzierventil einen eingestellten Gegendruck aufrechterhält, ab. Das Blech wird nun tiefer und tiefer in die Form gedrückt.Will. if the pressure line g is open, the press fluid enters and presses the sheet metal plate 7 into the mold cavity 3, which is also filled with a liquid is filled. This flows through the drain line 1a, in which a reducing valve maintains a set back pressure. The sheet is now deeper and pressed deeper into the mold.

Durch den höheren Oberdruck aus der Druckleitung g fließt die Flüssigkeit auch unter den Faltenhalter und zwischen die Blechplatte und tragende Matrizenfläche. Hierdurch entsteht zwischen diesen ein Flüssigkeitsschleier, der eine Reibung des Bleches zwischen den Werkzeugen praktisch aufhebt, obschon ein Faltenhalter 6 vorgesehen ist.The higher pressure from the pressure line g causes the liquid to flow also under the fold holder and between the sheet metal plate and the supporting die surface. This creates a liquid veil between them, which creates friction between the The sheet metal practically lifts up between the tools, although a fold holder 6 is provided is.

Nach Beendigung des Ziehvorganges werden die Zuleitungs- und Ableitungsventile geschlossen, der Deckel 2 abgehoben -und das fertig verformte Blechteil herausgenommen. Die in ihm befindliche Flüssigkeit kann hierbei aus denn gezogenen Behälter wieder in die Formhöhlung 3 hineingegossen werden.After completion of the pulling process, the inlet and outlet valves closed, the cover 2 lifted off and the completely deformed sheet metal part removed. The liquid in it can then be removed from the container again be poured into the cavity 3.

Die Vorrichtung kann unter jede beliebige Presse gebaut werden, die den erforderlichen Druck und die Stärke hat. Mit der Vorrichtung kann aber auch ohne Presse gearbeitet werden, wenn der Deckel verschraubt oder durch sonstige geeignete Schnellverschlüsse, Exzenter usw. geschlossen werden kann.The device can be built under any press that Has the necessary pressure and strength. With the device can also Work can be carried out without a press if the cover is screwed on or by other suitable means Quick-release fasteners, eccentrics, etc. can be closed.

Claims (2)

PATENTANSPRÜCHE: i. Vorrichtung zur Herstellung von Hohlkörpern aus Blech nach Patent 900 085, dadurch gekennzeichnet, daß an dem durch einen Distanzring gegen die Matrize (i) fest und abgedichtet abgestützten Deckel (2) eine federnde Fältenhalterplatte (6) angeordnet ist, die sich nicht gegen die Matrizenfläche anlegt. PATENT CLAIMS: i. Device for the production of hollow bodies from sheet metal according to Patent 900 085, characterized in that a resilient fold holder plate (6) is arranged on the cover (2), which is firmly and sealedly supported by a spacer ring against the die (i), and does not rest against the die surface applies. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß der Distanzring (q.) auswechselbar angeordnet ist. Angezogene Druckschriften: Deutsche Patentschriften Nr. 428 856, 4ä0 593.2. Apparatus according to claim i, characterized in that the spacer ring (q.) Is arranged interchangeably. Referred publications: German patents No. 428 856, 4-0 593.
DEK1558A 1950-01-31 1950-01-31 Device for the production of hollow bodies from sheet metal under hydraulic pressure Expired DE915324C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK1558A DE915324C (en) 1950-01-31 1950-01-31 Device for the production of hollow bodies from sheet metal under hydraulic pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK1558A DE915324C (en) 1950-01-31 1950-01-31 Device for the production of hollow bodies from sheet metal under hydraulic pressure

Publications (1)

Publication Number Publication Date
DE915324C true DE915324C (en) 1954-07-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEK1558A Expired DE915324C (en) 1950-01-31 1950-01-31 Device for the production of hollow bodies from sheet metal under hydraulic pressure

Country Status (1)

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DE (1) DE915324C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10160153C1 (en) * 2001-12-07 2003-06-26 Peter Groche Die for hydro-pressing sheet steel has two part mould with periphery formed of elastic material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE428856C (en) * 1924-06-24 1926-05-22 Ernst Hecker Fa Device for generating adjustable, slowly increasing hydraulic or pneumatic pressure for presses
DE480593C (en) * 1929-01-06 1929-08-05 Erwin Schwartz Self-acting press for deep-drawing processes with a press piston moved in a guide by means of a gaseous or liquid pressure medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE428856C (en) * 1924-06-24 1926-05-22 Ernst Hecker Fa Device for generating adjustable, slowly increasing hydraulic or pneumatic pressure for presses
DE480593C (en) * 1929-01-06 1929-08-05 Erwin Schwartz Self-acting press for deep-drawing processes with a press piston moved in a guide by means of a gaseous or liquid pressure medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10160153C1 (en) * 2001-12-07 2003-06-26 Peter Groche Die for hydro-pressing sheet steel has two part mould with periphery formed of elastic material

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