DE3242705C2 - Compressed air device arranged in the press table of a single-acting drawing press - Google Patents
Compressed air device arranged in the press table of a single-acting drawing pressInfo
- Publication number
- DE3242705C2 DE3242705C2 DE19823242705 DE3242705A DE3242705C2 DE 3242705 C2 DE3242705 C2 DE 3242705C2 DE 19823242705 DE19823242705 DE 19823242705 DE 3242705 A DE3242705 A DE 3242705A DE 3242705 C2 DE3242705 C2 DE 3242705C2
- Authority
- DE
- Germany
- Prior art keywords
- compressed air
- cylinders
- press
- air device
- pressure
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/10—Devices controlling or operating blank holders independently, or in conjunction with dies
- B21D24/14—Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/02—Die-cushions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Die Erfindung betrifft eine im Pressentisch einer einfach wirkenden Ziehpresse angeordnete Drucklufteinrichtung, welche aus Druckluftzylindern besteht, auf deren Kolbenstangen eine gemeinsame Druckwange angeordnet ist. Derartige Drucklufteinrichtungen werden im wesentlichen als sogenannte Ziehkissen eingesetzt. Bei den bekannten Drucklufteinrichtungen wurden alle Zylinder über einen gemeinsamen Druckluftbehälter mit regulierbarer Druckluft versorgt. Hierbei war die Kraft der einzelnen Zylinder jeweils gleich groß. Beim Ziehvorgang von asymmetrischen Ziehteilen ergaben sich Schwierigkeiten durch unterschiedliches Ziehverhalten einiger Materialbereiche des Ziehteiles. Diesen Umständen abzuhelfen, wird erfindungsgemäß vorgeschlagen, daß, wie aus der Zeichnung ersichtlich ist, jeder einzelne Zylinder 1 bis 4 der Drucklufteinrichtung an einen eigenen Druckluftbehälter 5 bis 8 angeschlossen ist. Dadurch können die Zylinder 1 bis 4 mit unterschiedlichem Druck beaufschlagt werden.The invention relates to a compressed air device arranged in the press table of a single-acting drawing press, which consists of compressed air cylinders, on the piston rods of which a common pressure cheek is arranged. Such compressed air devices are used essentially as so-called drawing cushions. In the known compressed air devices, all cylinders were supplied with controllable compressed air via a common compressed air tank. The force of the individual cylinders was the same in each case. During the drawing process of asymmetrical drawn parts, difficulties arose due to the different drawing behavior of some material areas of the drawn part. To remedy these circumstances, it is proposed according to the invention that, as can be seen from the drawing, each individual cylinder 1 to 4 of the compressed air device is connected to its own compressed air tank 5 to 8. This means that cylinders 1 to 4 can be subjected to different pressures.
Description
1010
15 Hierzu 1 Blatt Zeichnungen 15 1 sheet of drawings
Die Erfindung betrifft eine im Pressentisch einer einfach wirkenden Ziehpresse angeordnete Drucklufteinrichtung. The invention relates to a compressed air device arranged in the press table of a single-acting drawing press.
Derartige Da^klufteinrichtungen werden im wesentlichen als sogenannte Ziehkissen eingesetzt, wobei bei den meisten bekannten Drucklufteinrichtungen alle Zylinder über einen gemeinsamen Druckluftbehälter mit regulierbarer Druckluft versorgt wurden. Hierbei war die Kraft der einzelnen Zylinder jeweils gleich groß.Such air conditioning systems are essentially used as so-called drawing cushions, with most known compressed air devices all cylinders were supplied with controllable compressed air via a common compressed air tank. Here was the force of the individual cylinders is the same in each case.
Werden mit einer solchen Drucklufteinrichtung beispielsweise große asymmetrische Ziehteiie hergestellt, ergaben sich Schwierigkeiten hinsichtlich der unterschiedlichen Haltekräfte in verschiedenen Teilbereichen der Ziehteile.If, for example, large asymmetrical drawn parts are produced with such a compressed air device, Difficulties arose with regard to the different holding forces in different sub-areas the drawn parts.
Eine weitere b· kannte Presse (Zeitschrift Maschinenbautechnik, 7/1958, Heft 6, Seite 335) weist zwei Werkzeugträger und demzufolge auch zwei Kissenplatten auf. Diese Kissenplatten sip.a zwar «etrennt voneinander programmsteuerbar hinsichtlich des zeitlichen Ablaufs der Halteperiode jedes Kissens, wobei auch noch durch Abschalten und/oder Gegenschalten einzelner Druckkammergruppen die Kissendrücke beeinflußbar sind. Die vier Druckzylinder einer Kissenplatte sind jedoch stets mit untereinander gleichem Druck beaufschlagt. Another well-known press (Maschinenbautechnik magazine, 7/1958, issue 6, page 335) has two tool carriers and therefore also two cushion plates on. These pillow plates are sip.a "separated from each other programmable with regard to the timing of the holding period of each pillow, with also still the cushion pressures can be influenced by switching off and / or counter switching individual pressure chamber groups are. The four pressure cylinders of a cushion plate, however, are always subjected to the same pressure.
Demgegenüber strebt der Anmeldungsgegenstand an, eine Druckwange, die gleichzeitig Kissenplatte ist und von mehreren — insbesondere vier — Zylinder/ Kolbeneinheiten unterstützt ist, mit örtlich unterschiedlicher Kissenkraft zu beaufschlagen und zwar so wie es ein asymmetrisches großes Ziehteil erfordert.In contrast, the subject of the application aims at a pressure cheek that is also a cushion plate and is supported by several - in particular four - cylinder / piston units, with locally different ones Applying cushion force, as required by an asymmetrical large drawing part.
Diese Aufgabe wird dadurch gelöst, daß jeder einzelne Druckzylinder des Kissens an einem eigenen Druckluftbehälter angeschlossen ist, dem je eine gesonderte Druckreguliervorrichtung vorgeschaltet ist, wodurch jeder Zylinder einzeln druckregulierbar ist. Hierdurch ist während des gesamten Ziehprozesses die Kissenplatte mit den örtlich unterschiedlich erwünschten Kräften in beliebiger Feinabstimmung beaufschlagbar.This object is achieved in that each individual pressure cylinder of the cushion is connected to its own compressed air tank is connected, each of which is preceded by a separate pressure regulating device, whereby each cylinder can be individually pressure regulated. This ensures that the cushion plate is in place during the entire drawing process can be acted upon with the locally different desired forces in any fine-tuning.
Die hiervon ausgehende Wirkung kann durch die bekannte Vorrichtung nach der Zeitschrift »Maschinenbautechnik« nicht erreicht werden, da die vier Zylinder einer Kissenplatte diese ganz gleichmäßig mit Druck bzw. Kraft beaufschlagen, weil sie untereinander stets gleiche-Drücke aufweisen.The effect emanating from this can be achieved by the known device according to the magazine "Maschinenbautechnik" cannot be reached, as the four cylinders of a cushion plate apply pressure to it evenly or apply force because they always have the same pressures as one another.
Die Erfindung wird anhand einer Zeichnung, die ein beliebiges Ausführungsbeispiel darstellt, näher erläutert. Sie zeigt eine Draufsicht auf die Drucklufteinrichtungen unter Weglassen der Druckwange im geschnittenen Zustand der Kolbenstangen la bis 4a der Zylinder 1 bis 4.The invention is explained in more detail with reference to a drawing which shows any desired embodiment. It shows a plan view of the compressed air devices, omitting the pressure cheek in the cut state of the piston rods la to 4a of the cylinders 1 to 4.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823242705 DE3242705C2 (en) | 1982-11-19 | 1982-11-19 | Compressed air device arranged in the press table of a single-acting drawing press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823242705 DE3242705C2 (en) | 1982-11-19 | 1982-11-19 | Compressed air device arranged in the press table of a single-acting drawing press |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3242705A1 DE3242705A1 (en) | 1984-05-24 |
DE3242705C2 true DE3242705C2 (en) | 1985-10-31 |
Family
ID=6178455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19823242705 Expired DE3242705C2 (en) | 1982-11-19 | 1982-11-19 | Compressed air device arranged in the press table of a single-acting drawing press |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3242705C2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3915794A1 (en) * | 1989-05-13 | 1990-11-15 | Mueller Weingarten Maschf | Deep drawing press with workpiece holder - is actuated by hydraulic pistons with arrangement to vary applied force |
DE3915795C1 (en) * | 1989-05-13 | 1991-01-31 | Maschinenfabrik Mueller-Weingarten Ag, 7987 Weingarten, De | |
EP0703018A1 (en) | 1994-09-26 | 1996-03-27 | Maschinenfabrik Müller-Weingarten Ag | Mechanical or hydraulic press |
DE102004030678A1 (en) * | 2004-06-24 | 2006-01-26 | Müller Weingarten AG | Cushioning device with hybrid drive |
DE102005026818B4 (en) * | 2004-06-24 | 2007-05-31 | Müller Weingarten AG | Die cushion device with NC drives |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3476524D1 (en) * | 1984-06-29 | 1989-03-09 | Schuler Gmbh L | Drawing device in a press |
DE59101219D1 (en) * | 1990-04-23 | 1994-04-28 | Mueller Weingarten Maschf | Drawing device in a press for drawing sheet metal parts. |
DE19953860A1 (en) * | 1999-11-09 | 2001-05-17 | Fraunhofer Ges Forschung | Thermoforming press and method for thermoforming sheet metal workpieces |
US20140298952A1 (en) | 2011-12-05 | 2014-10-09 | Schaeffler Technologies Gmbh & Co. Kg | Drive train |
-
1982
- 1982-11-19 DE DE19823242705 patent/DE3242705C2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3915794A1 (en) * | 1989-05-13 | 1990-11-15 | Mueller Weingarten Maschf | Deep drawing press with workpiece holder - is actuated by hydraulic pistons with arrangement to vary applied force |
DE3915795C1 (en) * | 1989-05-13 | 1991-01-31 | Maschinenfabrik Mueller-Weingarten Ag, 7987 Weingarten, De | |
EP0703018A1 (en) | 1994-09-26 | 1996-03-27 | Maschinenfabrik Müller-Weingarten Ag | Mechanical or hydraulic press |
DE102004030678A1 (en) * | 2004-06-24 | 2006-01-26 | Müller Weingarten AG | Cushioning device with hybrid drive |
DE102004030678B4 (en) * | 2004-06-24 | 2006-03-30 | Müller Weingarten AG | Cushioning device with hybrid drive |
DE102005026818B4 (en) * | 2004-06-24 | 2007-05-31 | Müller Weingarten AG | Die cushion device with NC drives |
Also Published As
Publication number | Publication date |
---|---|
DE3242705A1 (en) | 1984-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8331 | Complete revocation |