EP1344585A2 - Hydroelastische Tiefzieheinrichtung - Google Patents
Hydroelastische Tiefzieheinrichtung Download PDFInfo
- Publication number
- EP1344585A2 EP1344585A2 EP03005517A EP03005517A EP1344585A2 EP 1344585 A2 EP1344585 A2 EP 1344585A2 EP 03005517 A EP03005517 A EP 03005517A EP 03005517 A EP03005517 A EP 03005517A EP 1344585 A2 EP1344585 A2 EP 1344585A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- short
- drawing device
- deep
- stroke
- cylinder
- 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.)
- Granted
Links
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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
- B21D24/04—Blank holders; Mounting means therefor
- B21D24/08—Pneumatically or hydraulically loaded blank holders
Definitions
- the invention relates to a hydroelastic deep-drawing device Presses for drawing sheet metal parts according to the preamble of Claim 1.
- DE-PS 30 22 844 already has a deep-drawing device on tools or presses for drawing sheet metal parts are known, the one of several Printing cylinders and with axially movable in them, with Current pressure medium acted upon the existing drawing cushion for the piston Support a sheet metal holder plate and with another, one in Drawing direction movably guided die cushion receiving die is equipped, the impression cylinder with the impression cylinders of the Sheet support supporting die cushion connected via flow paths and displaced from these pressure cylinders with the drawing process Flow pressure media are acted upon.
- the invention has set itself the task of avoiding the above Disadvantages of a computer-aided, process-capable, hydroelastic deep drawing to realize, in which the according to the shape geometry of the Workpiece arranged pressure cylinder piston assemblies for that Activate sheet metal holder plate field of action and with an exact Force profile control without disturbance amplitudes is to realize the advantages and achieve effects of a rubber-elastic die cushion system; further the task is to apply greater forces over a cylinder to be able to transmit and this even if additional larger eccentric Loads occur per cylinder unit, as well as a simple and to create low-cost deep-drawing equipment.
- the stationary design of the deep-drawing device according to the invention is, in particular, conceptually simpler and therefore less expensive than deep-drawing forming presses with a mobile die cushion plate or a multi-point die cushion.
- the short-stroke piston cylinder systems work in a stationary arrangement for each force action field with less interference and more reliable functions. This also applies to stationary counter-rotating cylinders for the punch movement.
- the measures and features according to the invention have also made it possible, in particular, to understand the process advantage of a rubber-elastic sheet holder die cushion system for several fields of action of the sheet metal holder plate, but with the advantage and the possibility of computer-aided process control, with the control of the short-stroke piston-cylinder systems for the force fields of action both with same as well as with different pressure depending on the molded part.
- the Arrangement of the short-stroke piston-cylinder fields of action in kinematic Conversions also allow vertical freedom within the press between ram and table top, because the short-stroke piston-cylinder systems are accommodated within the necessary space for the Die stroke.
- the ram force can act as a base load on the pull ring effective for a tilt-free force application of the short-stroke piston-cylinder systems be used. This is a trouble-free Process control in the independent hydraulic Pressure action of the short-stroke force fields of action advantageously given.
- the hydraulic deep-drawing device according to the invention in combination with The short stroke piston cylinder system has advantages in both hydraulic can also be used in mechanical (crank) deep-drawing presses.
- Each spacer with the associated short-stroke piston is supported in the frame of the force field on a large hydraulic cushion, so that Bumps on the drawing ring automatically with the effect of a rubber elastic Drawing cushion, an even application of force around the drawing ring, be balanced.
- There is a short-stroke piston-cylinder system for every force field assigned the arrangement of the force fields can be chosen arbitrarily, according to the drawing ring geometry and the tool are required and the force fields are with Consideration of an exact force profile control over the drawing stroke servo-hydraulically controlled.
- each position is controlled in a position-controlled manner and the sheet metal holder plate is reset in parallel after the deep-drawing operation.
- the return stroke can take place at high speed, according to a pre-programmable speed profile (acceleration and deceleration) for demolding the drawn part.
- the advantage here is that the large-area short-stroke piston-cylinder arrangements automatically compensate for control errors in synchronous travel.
- Another advantage is that the short-stroke piston-cylinder arrangement is servo-hydraulically controlled for fast movements with high precision and low costs with a small oil volume, practically without compression volume.
- the diameter of the short-stroke cylinder 9 and the short-stroke piston 10 with the Spacers 11 are approximately the same in size and effective area existing boundary of the force fields.
- the ram is divided in two in an outer ram 8 with the Sheet metal holder plate 12 and an inner plunger, which as a drawing punch 13 own drive, executed.
- the first is 1 to be regarded as advantageous, in which the Pull stamp upwards.
- Figures 5 and 6 show a variation in the arrangement of the Short-stroke piston-cylinder systems 20 in the upper plunger 8, for example at Use as a double-acting press 1 from above, the arrangement the short-stroke piston 10 also corresponds to the force fields articulated with larger short-stroke pistons 10 short-stroke cylinders 9 is executed.
- Figure 2 shows a plan view of the table top 6 of Figure 1, with the Short-stroke piston-cylinder systems 20, the punch 5 and the workpiece 7. At 21 there are several variants of the basin geometries that can be produced located.
- FIG Figure 3 The enlarged representation of a short-stroke piston-cylinder system 20 is shown in FIG Figure 3 shown. It shows the short-stroke piston 9 integrated in the table top 6 and guided in seals 17 and in guide rings 18.
- the shaped bolt 15 can with an eccentricity L to the central axis on the Place the closure plate 14 on. If necessary, two and more can also be used Shaped pin 15 may be provided.
- the short-stroke cylinder 9 is larger than about 200 to 250 mm in diameter the previously used short-stroke cylinders and can therefore also Generate forces up to 80 tons.
- the support for the shaped bolts 15 is also included a diameter of about 300 mm larger than the usual Short stroke cylinder 9 and thus leaves more scope for positioning from the form bolts 15. Due to the large guide length of the spacer 11 can even with this eccentric load 80 tons without tipping to be dealt with.
- the arrangement options are illustrated with the Shape of the bolts 15 on the spacer 11. If necessary, the Shaped pin 15 can also be designed as an angle iron.
Abstract
Description
Durch die erfindungsgemäßen Maßnahmen und Merkmale ist es insbesondere auch gelungen, für mehrere Wirkungsfelder der Blechhalterplatte, den Verfahrensvorteil eines gummielastischen Blechhalter-Ziehkissensystems nachzuvollziehen, aber mit dem Vorteil und der Möglichkeit der rechnergestützten Prozesssteuerung, wobei die Ansteuerung der Kurzhubkolben-Zylindersysteme für die Kraftwirkungsfelder sowohl mit gleichem als auch mit unterschiedlichem Druck je nach Formteil, möglich ist.
Von Vorteil ist dabei, dass die großflächigen Kurzhubkolben-Zylinderanordnungen Regelfehler in der Synchronfahrt selbsttätig ausgleichen. Weiter ist von Vorteil, dass die Kurzhubkolben-Zylinderanordnung bei hoher Präzision und geringen Kosten mit kleinem Ölvolumen, praktisch ohne Kompressionsvolumen, für schnelle Bewegungen servohydraulisch angesteuert werden.
- Figur 1
- in schematischer Darstellung die Tiefzieheinrichtung nach der Erfindung,
- Figur 2
- eine Draufsicht auf die Tischplatte nach Figur 1 mit eingezeichneten möglichen Beckengeometrien,
- Figur 3
- die Ausbildung eines erfindungsgemäßen Kurzhubkolben-Zylindersystems im Detail nach einem Ausschnitt "A" aus Figur 1,
- Figur 4
- zwei beispielhafte Anordnungen der Formbolzen auf den Distanzstücken in der Führungsplatte,
- Figur 5
- ein zweites Ausführungsbeispiel der Tiefzieheinrichtung gemäß der Erfindung mit stationärem Kurzhubkolben-Zylindersystem in der Tischplatte und
- Figur 6
- ein drittes Ausführungsbeispiel der Tiefzieheinrichtung gemäß der Erfindung mit im Stössel integrierten Kurzhubkolben-Zylindersystemen beim Einsatz als zweifach wirkende Presse oben.
- 1.
- Presse
- 2.
- Pressengestell
- 3.
- Hydraulischer Kolben für Ziehstempel 5 in Tischplatte oder in Stösselplatte integriert
- 4.
- Ziehring
- 5.
- Ziehstempel
- 6.
- Tischplatte
- 7.
- Werkstück
- 8.
- Stössel
- 9.
- Kurzhubzylinder (in Tisch oder Stössel integriert)
- 10.
- Kurzhubkolben (in Tisch oder Stössel integriert)
- 11.
- Distanzstück
- 12.
- Blechhalteplatte
- 13.
- Ziehstempel im Stössel
- 14.
- Verschleißplatte
- 15.
- Formbolzen
- 16.
- Führungsbuchse
- 17.
- Dichtungen
- 18.
- Führungsring
- 19.
- Führungsplatte
- 20.
- Kurzhubkolben-Zylindersystem
- 21.
- Varianten der herstellbaren Beckengeometrien
Claims (8)
- Hydroelastische Tiefzieheinrichtung bei Pressen zum Ziehen von Blechformteilen, mit gegenüber hydraulischen Druckzylindern und Druckkolben abgestützten Blechhalteplatte und mit einem in Ziehrichtung bewegbar geführten Ziehstempel, der sich an mindestens einem in einem Zylinder geführten und mit Hydraulik-Medium beaufschlagbaren Kolben abstützt und einem im Oberholm abgestützten auf- und abbewegbar geführten Stössel, gekennzeichnet durch folgende Merkmale:a) zur Abstützung und Beaufschlagung der Blechhalteplatte (12) sind mehrere in Anzahl und Fläche wählbare Kraftwirkungsfelder um einen oder mehrere Ziehstempel (5) vorgesehen, wobei jedem Kraftwirkungsfeld ein stationär integriertes Kurzhubkolben-Zylindersystem (20) zugeordnet ist,b) das Kurzhubkolben-Zylindersystem (20) besteht aus einem Kurzhubzylinder (9) mit Kurzhubkolben (10) auf dem ein großflächiges und lang ausgeführtes Distanzstück (11) kippsicher abgestützt ist und darauf ein oder mehrere Formbolzen (15) auf die Blechhalteplatte (12) zentrisch oder exzentrisch andrückbar angeordnet sind undc) die Kurzhubkolben (10) und ihre Distanzstücke (11) sind in ihrem Durchmesser oder nach Ihren Wirkflächen annähernd in der Größe der Umgrenzung der Kraftwirkungsfelder entsprechend ausgeführt.
- Hydraulische Tiefzieheinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass durch unterschiedliche Anordnung der Formbolzen (15) auf den Wirkflächen der Distanzstücke (11) eine Anpassung an ähnliche Werkstücke (7) einer Teilefamilie möglich ist.
- Hydraulische Tiefzieheinrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Formbolzen (15) in Anpassung und entsprechend der zugehörigen Ziehringkontur ausgebildet sind.
- Hydraulische Tiefzieheinrichtung nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der oder die Ziehstempel (5) von unten nach oben wirkend innerhalb oder unterhalb der Tischplatte (6) stationär angeordnet sind.
- Hydraulische Tiefzieheinrichtung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der oder die Ziehstempel (5) von oben nach unten wirkend innerhalb des zweigeteilten Stössels (8) stationär angeordnet sind.
- Hydraulische Tiefzieheinrichtung nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Kurzhubkolben-Zylindersysteme (20) in der Tischplatte (6) stationär angeordnet sind.
- Hydraulische Tiefzieheinrichtung nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Kurzhubkolben-Zylindersystem (20) stationär im äußeren Stössel (8) integriert sind.
- Hydraulische Tiefzieheinrichtung nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass jedes Kraftwirkungsfeld unabhängig von den anderen durch ein Kurzhubkolben-Zylindersystem (20) hydraulisch ansteuerbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10210573 | 2002-03-11 | ||
DE10210573A DE10210573A1 (de) | 2002-03-11 | 2002-03-11 | Hydroelastische Tiefzieheinrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1344585A2 true EP1344585A2 (de) | 2003-09-17 |
EP1344585A3 EP1344585A3 (de) | 2005-07-27 |
EP1344585B1 EP1344585B1 (de) | 2008-05-07 |
Family
ID=27762852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03005517A Expired - Lifetime EP1344585B1 (de) | 2002-03-11 | 2003-03-11 | Hydroelastische Tiefzieheinrichtung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1344585B1 (de) |
AT (1) | ATE394179T1 (de) |
DE (2) | DE10210573A1 (de) |
DK (1) | DK1344585T3 (de) |
ES (1) | ES2307843T3 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004006126B4 (de) * | 2004-02-07 | 2006-12-28 | Horst Baltschun | Presse mit verriegeltem Stößel |
DE102004059141A1 (de) * | 2004-12-08 | 2006-06-14 | Wieber, Christian, Dipl.-Ing.(FH), Batu Caves | Hydraulische Presse |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3022844A1 (de) * | 1980-06-19 | 1982-01-07 | Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim | Einrichtung an werkzeugen oder pressen zum ziehen von blechformteilen |
DE3333687A1 (de) * | 1983-09-17 | 1985-03-28 | Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim | Einrichtung an werkzeugen oder pressen zum ziehen von blechformteilen |
DE4112656A1 (de) * | 1990-04-23 | 1991-10-24 | Mueller Weingarten Maschf | Zieheinrichtung in einer presse zum ziehen von blechformteilen |
DE4016838A1 (de) * | 1990-05-25 | 1991-11-28 | Smg Sueddeutsche Maschinenbau | Ziehapparat in einer presse |
DE4100206A1 (de) * | 1991-01-06 | 1992-07-09 | Dieffenbacher Gmbh Maschf | Hydroelastische tiefzieheinrichtung |
DE19718841A1 (de) * | 1996-05-06 | 1997-11-13 | Mueller Weingarten Maschf | Verfahren zur Materialflußsteuerung beim Ziehen von Blechformteilen sowie Vorrichtung zur Durchführung des Verfahrens |
DE19641411A1 (de) * | 1996-10-08 | 1998-04-09 | Dieffenbacher Gmbh Maschf | Hydraulische Tiefzieheinrichtung |
US6006578A (en) * | 1997-01-25 | 1999-12-28 | Reitter; Erhardt | Die for drawing molded sheet metal parts |
-
2002
- 2002-03-11 DE DE10210573A patent/DE10210573A1/de not_active Withdrawn
-
2003
- 2003-03-11 AT AT03005517T patent/ATE394179T1/de not_active IP Right Cessation
- 2003-03-11 DE DE50309758T patent/DE50309758D1/de not_active Expired - Lifetime
- 2003-03-11 EP EP03005517A patent/EP1344585B1/de not_active Expired - Lifetime
- 2003-03-11 DK DK03005517T patent/DK1344585T3/da active
- 2003-03-11 ES ES03005517T patent/ES2307843T3/es not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3022844A1 (de) * | 1980-06-19 | 1982-01-07 | Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim | Einrichtung an werkzeugen oder pressen zum ziehen von blechformteilen |
DE3333687A1 (de) * | 1983-09-17 | 1985-03-28 | Uniplanung Metall- und Kunststoffengineering GmbH & Co KG, 7552 Durmersheim | Einrichtung an werkzeugen oder pressen zum ziehen von blechformteilen |
DE4112656A1 (de) * | 1990-04-23 | 1991-10-24 | Mueller Weingarten Maschf | Zieheinrichtung in einer presse zum ziehen von blechformteilen |
DE4016838A1 (de) * | 1990-05-25 | 1991-11-28 | Smg Sueddeutsche Maschinenbau | Ziehapparat in einer presse |
DE4100206A1 (de) * | 1991-01-06 | 1992-07-09 | Dieffenbacher Gmbh Maschf | Hydroelastische tiefzieheinrichtung |
DE4104136A1 (de) * | 1991-01-06 | 1992-09-10 | Dieffenbacher Gmbh Maschf | Hydroelastische tiefzieheinrichtung |
DE19718841A1 (de) * | 1996-05-06 | 1997-11-13 | Mueller Weingarten Maschf | Verfahren zur Materialflußsteuerung beim Ziehen von Blechformteilen sowie Vorrichtung zur Durchführung des Verfahrens |
DE19641411A1 (de) * | 1996-10-08 | 1998-04-09 | Dieffenbacher Gmbh Maschf | Hydraulische Tiefzieheinrichtung |
US6006578A (en) * | 1997-01-25 | 1999-12-28 | Reitter; Erhardt | Die for drawing molded sheet metal parts |
Also Published As
Publication number | Publication date |
---|---|
DE10210573A1 (de) | 2003-10-02 |
DE50309758D1 (de) | 2008-06-19 |
ATE394179T1 (de) | 2008-05-15 |
EP1344585A3 (de) | 2005-07-27 |
EP1344585B1 (de) | 2008-05-07 |
DK1344585T3 (da) | 2008-09-08 |
ES2307843T3 (es) | 2008-12-01 |
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