DE915326C - 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 pressureInfo
- Publication number
- DE915326C DE915326C DEK7701A DEK0007701A DE915326C DE 915326 C DE915326 C DE 915326C DE K7701 A DEK7701 A DE K7701A DE K0007701 A DEK0007701 A DE K0007701A DE 915326 C DE915326 C DE 915326C
- Authority
- DE
- Germany
- Prior art keywords
- sheet metal
- production
- hydraulic pressure
- hollow bodies
- under hydraulic
- 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
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
- B21D26/021—Deforming sheet bodies
- B21D26/029—Closing or sealing means
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
Nach dem Patent 900 085 wird die zur Herstellung des Hohlkörpers verwendete ebene Blechplatte in einem Führungsschlitz der Matrize aufgenommen, um ein dem Verformungsvorgang folgendes Gleiten des Bleches zu erzielen. Die zu diesem Arbeitsvorgang benutzte Vorrichtung ist eine mit der Formhöhlung versehene Matrize, die unter Zwischenlage eines Distanzringes und unter Ausbildung eines Führungsspaltes mit dem anderen Matrizenteil schließend verbunden ist.According to the patent 900 085 is used to manufacture the hollow body Flat sheet metal plate received in a guide slot of the die to allow for the deformation process to achieve the following sliding of the sheet. The one used for this operation The device is a die provided with the mold cavity, which is placed under an intermediate layer a spacer ring and forming a guide gap with the other die part is finally connected.
Es hat sich nun gezeigt, daß bei dieser Ausbildung der Vorrichtung die Blechplatte die NFeigung hat, unter der Wirkung der Preßflüssigkeit ungleichmäßig zu gleiten, so daß sie sich aus der Mitte verschiebt.It has now been shown that with this design of the device the sheet metal plate has the tendency to become uneven under the action of the pressing fluid to slide so that it shifts from the center.
Die Erfindung bezweckt nun, das ungleichmäßige Kleben der Blechplatte und die daraus sich ergebende einseitige Verschiebung dadurch zu vermeiden, daß der durch den Distanzring gebildete Spalt für die Blechdicke mittels eines elastischen Dichtungsringes gegen das Eindringen der Preßflüssigkeit abgeschirmt wird, wodurch vermieden wird, daß die Preßflüssigkeit um die Blechkante herum in den Formraum gelangt und hier den Unterdruck beeinträchtigt.The invention now aims at the uneven gluing of the sheet metal plate and to avoid the resulting one-sided shift in that the gap formed by the spacer ring for the sheet metal thickness by means of an elastic Sealing ring is shielded against the penetration of the pressing liquid, whereby it is avoided that the pressing fluid around the sheet metal edge in the mold space arrives and affects the negative pressure here.
Zu diesem Zweck ist erfindungsgemäß auf die Blechplatte ein elastischer Dichtungsring aufgelegt, der die Platte gegen den Preßraum abdichtet und ein gleichmäßiges Gleiten der Platte gewährleistet.For this purpose, according to the invention, an elastic is applied to the sheet metal plate Sealing ring placed, which seals the plate against the press chamber and a uniform Guaranteed sliding of the plate.
Um weiterhin auch indem Fall, in dem der Blechrand bereits den Spalt verlassen hat, das Eindringen von Preßflüssigkeit hinter die Blechwand zu vermeiden, ,sind gemäß der Erfindung unter den Ziehradien an sich bekannte Dichtungsringe eingebaut.To continue even by the case in which the sheet metal edge already has the gap left to avoid the penetration of press fluid behind the sheet metal wall, , sealing rings known per se are installed according to the invention under the drawing radii.
In der Zeichnung ist eine beispielsweise Ausführungsform der erfindungsgemäß ausgebildeten Vorrichtung in einem Vertikalschnitt dargestellt. Die Matrize i ist durch den Deckel 3 abgeschlossen. Der Formraum 2 besitzt eine Anschlußbohrung für die Absaugeleitung. Im Deckel ist eine solche Anschlußbohrung für die Druckleitung 9 vorgesehen. Die Blechplatte 13 ist in dem zwischen dem Deckel 3 und der Matrizenfläche durch den Distanzring 7 ausgebildeten Spalt 25 gleitend gelagert.The drawing shows an example embodiment of the invention trained device shown in a vertical section. The die i is completed by the cover 3. The mold space 2 has a connection hole for the suction line. In the cover there is such a connection hole for the pressure line 9 provided. The sheet metal plate 13 is in the between the cover 3 and the die surface formed by the spacer ring 7 gap 25 slidably mounted.
In einer Ausnehmung des Deckels 3 isst ein elastischer Dichtungsring 26 aus Gummi oder einem gleichartig wirkenden Material eingelassen. Dieser liegt mit seiner vorzugsweise breit gehaltenen Fläche auf der Blechplatte 13 abdichtend auf.An elastic sealing ring 26 made of rubber or a similarly acting material is embedded in a recess of the cover 3. This rests with its preferably wide surface on the sheet metal plate 13 in a sealing manner.
Beire Einlassen der Preßflüssigkeit wird diese durch den Dichtungsring 26 am Eindringen in den Spalt 25 gehindert, so daß das Gleiten des ebenen Bleches unter Entlastung vom Preßdruck gesichert ist und ein Überlaufen der Preßflüssigkeit in den Formraum 2 vermieden wird. Es kann dann außerdem noch ein Dichtungsring 27 unterhalb der Ziehradien 28 vorgesehen werden, damit der Rand der Blechplatte 13 auch nach Verlassen des Spaltes 25 sich dichtend gegen die Formwand anlegt und damit auch ein Übertritt der Preßflüssigkeit in den Formraum 2 vermieden ist.When the press liquid is let in, it is passed through the sealing ring 26 prevented from entering the gap 25, so that the sliding of the flat sheet is secured under relief of the pressing pressure and an overflow of the pressing liquid in the mold space 2 is avoided. A sealing ring 27 can then also be used be provided below the drawing radii 28 so that the edge of the sheet metal plate 13 even after leaving the gap 25 is applied sealingly against the mold wall and thus a transfer of the pressing liquid into the mold space 2 is also avoided.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK7701A DE915326C (en) | 1950-10-17 | 1950-10-17 | Device for the production of hollow bodies from sheet metal under hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK7701A DE915326C (en) | 1950-10-17 | 1950-10-17 | Device for the production of hollow bodies from sheet metal under hydraulic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE915326C true DE915326C (en) | 1954-07-19 |
Family
ID=7211648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK7701A Expired DE915326C (en) | 1950-10-17 | 1950-10-17 | Device for the production of hollow bodies from sheet metal under hydraulic pressure |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE915326C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19711162A1 (en) * | 1997-03-18 | 1998-09-24 | Matthias Prof Dr Ing Kleiner | Tool system for hydraulic forming of sheet |
-
1950
- 1950-10-17 DE DEK7701A patent/DE915326C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19711162A1 (en) * | 1997-03-18 | 1998-09-24 | Matthias Prof Dr Ing Kleiner | Tool system for hydraulic forming of sheet |
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