EP0887127A1 - Ziehapparat in einer Presse - Google Patents
Ziehapparat in einer Presse Download PDFInfo
- Publication number
- EP0887127A1 EP0887127A1 EP98111266A EP98111266A EP0887127A1 EP 0887127 A1 EP0887127 A1 EP 0887127A1 EP 98111266 A EP98111266 A EP 98111266A EP 98111266 A EP98111266 A EP 98111266A EP 0887127 A1 EP0887127 A1 EP 0887127A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drawing apparatus
- spindle
- pressure
- pressure cheek
- drive means
- 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
Images
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
Definitions
- the invention relates to a drawing apparatus in a press or the like.
- the Drawing device has a one-piece or multi-piece sheet holder and at least a pressure cylinder to hold when pulling and ejecting the molded Workpiece.
- FIG. 1 shows the press table 1 of a press, for example an installation press the tools and gripping tools are retracted or set up.
- a lower tool part 2 is placed and locked.
- a moving up and down Ram 3 of the press is attached to an upper tool part 4.
- the lower part of the tool has a sheet holder 5, the edge holding an inserted sheet and the Evaluation of the sheet then formed is used.
- the sheet metal holder is on his Underside of pressure pin 31 acts on the one in the press table and lifting lowerable pressure cheek 6 are supported.
- the pressure cheek is part of a pulling device, who is positioned with a total of 7.
- drawing cylinders 8 At least one Ejector or feeder cylinder 9 and a stop device 10 for the Ramp-up stop, pressure accumulator, pressure lines, valves u.
- the piston rod led downwards 11 of the ejector cylinder is partially designed as a spindle on which one Spindle nut 12 is rotatably placed.
- the spindle nut acts as a stop with one part 13 fixed to the frame so as to limit the ejector movement upwards.
- the figures 2 and 3 show a drawing apparatus 7 with the pressure cheek raised 6, FIG. 2, and the pressure cheek 6, FIG. 3, which is locked in an intermediate position , the press table 1 has two motors 16, each fastened via a bearing block 15, which act on each spindle 17. The rotation of the spindles cause a change in their extended length.
- the spindles can withstand tensile loads and go into their respective end areas a fret 18 over. These covenants cooperate with attacks 19, which are about Tabs 20 are attached to the pressure cheek. According to graphic representation the stop device 10 shown on the left, the pressure cheek 6 on an unwanted Start-up, prevent the stop device 10 shown on the right from lowering.
- the figures 4 and 5 have stop devices 10 which are subjected to pressure Spindles 21.
- the stops 19 moved with the pressure cheek 6 are against the Collars 18 can be laid, wherein according to FIG. 5 a movement of the pressure cheek when the Press is prevented.
- FIGS. 6 and 7 show stop devices 10 in mixed form. While the Spindle 17 shown in the picture on the left can be loaded according to the embodiment according to 2 and 3, the spindle 21 shown in the picture on the right is pressure-resistant Fig. 4 and 5. Spindles 17 and 21 together prevent the start-up Pressure cheek 6.
- FIGS. 8 and 9 A further solution is illustrated in FIGS. 8 and 9.
- the pressure cheek 6 is by means of ejector cylinder 9 after the plunger 3 has fallen into the upper one Can be brought into the position in which a sheet metal part is again inserted into the tool 2, 4 on the sheet metal holder 5 can be placed.
- the height of the pressure beam 6 and with this the height of the Sheet holder 5 is set in a known manner via a stop 22 and an in a frame-fixed part 13 rotatably driven spindle sleeve 23.
- the stop 22 is located itself at the end region of the piston rod 11 of the ejector cylinder which is guided downwards 9.
- the spindle sleeve 23 is more or less far down by means of the motor movable from the frame part.
- Stop 22 and spindle sleeve 23 are now also according to the invention for the Avoiding run-up of pressure cheek 6 and sheet metal holder 5 when the press is at a standstill be used.
- a first motor 24 is used for the adjustment of the altitude, which is operated via e.g. a first Bevel gear 25, an additional first clutch 26 and another bevel gear 27 acts on a worm shaft 28.
- the one attached to the worm shaft Auger 32 cooperates with the spindle sleeve 23 in a rotating sense.
- a second motor 29 is provided for high-speed running of the spindle sleeve first and second bevel gear 25, 27 and a second clutch 30 on the Worm shaft 28 acts.
- the clutches can be switched optionally in the sense the loading of the motors 25.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
- Fig. 1
- einen Einbauraum einer Presse mit Werkzeug und Ziehapparat nach dem Stand der Technik,
- Fig. 2
- den Einbauraum mit einer Einrichtung nach der Erfindung in die Druckwange freigebender Stellung,
- Fig. 3
- den Einbauraum mit einer Einrichtung nach der Erfindung mit die Druckwange in der Bewegung sperrenden Wirkung.
- Fig. 4
- den Einbauraum mit einer zweiten Einrichtung nach der Erfindung in die Druckwange freigebender Stellung,
- Fig. 5
- den Einbauraum mit einer zweiten Einrichtung nach der Erfindung mit die Druckwange in der Bewegung sperrenden Wirkung.
- Fig. 6
- den Einbauraum mit gemischter Lösung der Erfindung nach den Fign. 2 bis 5, wobei die Druckwange frei beweglich ist,
- Fig. 7
- den Einbauraum mit gemischter Lösung der Erfindung nach den Fign. 2 bis 5 mit die Druckwange sperrenden Wirkung,
- Fig. 8
- den Einbauraum mit einer weiteren Lösung mit Teilschnitt im Bereich der Erfindung und
- Fig. 9
- eine Schnittdarstellung gemäß Schnitt IX - IX in Fig. 8.
Claims (7)
- Ziehapparat in einer Presse o. dgl. Umformanlage mit einem von einem, ggf. mehreren Druckzylindern (8, 9) beaufschlagbaren Blechhalter (5), gekennzeichnet durch Sperrmittel (10), Arretierungen und dgl., die in einem Fall unmittelbar direkt an einer den Blechhalter (5) abstützenden Druckwange (6), im anderen Fall mittelbar über einen Gelenk-, bzw. Getriebezug (24, 25, 26, 27, 28, 29, 30) auf die Druckwange (5) einwirken.
- Ziehapparat nach Anspruch 1, mit zwei Festanschlägen (19) an Druckwange (5) oder von dieser bewegten Teile (20) und zwei motorgetriebenen Spindeln (17, 21), von denen eine erste Spindel (17) mit einem Bund (18) versehen ist an deren dem Antriebsmittel (Motor 16) fernen Endbereich, der bei einer Aufwärtsbewegung hinter einem ersten Festanschlag (19) legbar ist, und von denen die zweite Spindel (17) mit einem Bund (18) versehen ist an deren dem Antriebsmittel (Motor 16) fernen Endbereich, der bei einer Abwärtsbewegung hinter einen zweiten Festanschlag (19) legbar ist.
- Ziehapparat nach Anspruch 2, dadurch gekennzeichnet, daß die Antriebsmittel (Motore 16) für die Spindeln (17) mit Bezug auf die Bunde (18) auf den den Festanschlägen (19) abgewandten Seiten angeordnet sind.
- Ziehapparat nach Anspruch 2, dadurch gekennzeichnet, daß die Antriebsmittel (Motore 16) für die Spindeln (21) mit Bezug auf die Anschläge (18) auf den den Festanschlägen (19) zugewandten Seiten angeordnet sind.
- Ziehapparat nach Anspruch 1, dadurch gekennzeichnet, daß die Sperreinrichtung (10) auf eine im Betriebszustand starr mit der Druckwange (6) verbundenen Kolbenstange (11) eines Druckzylinders (9) wirkt.
- Ziehapparat nach Anspruch 5, gekennzeichnet durch eine gestellseitige Spindel bzw. Spindelhülse (23), die gegen einen, ggf. gegen zwei Anschlagbunde (22) o. dgl. Feststellmittel an der Kolbenstange (11) legbar ist.
- Ziehapparat nach Anspruch 6, dadurch gekennzeichnet, daß zwei reversible Verstellmotore (24, 29) angeordnet sind, die wahlweise über Kupplungsmittel (26, 30) an der Spindel bzw. Spindelhülse (23) in diese drehendem Sinne einwirken.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19726928A DE19726928A1 (de) | 1997-06-25 | 1997-06-25 | Ziehapparat |
DE19726928 | 1997-06-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0887127A1 true EP0887127A1 (de) | 1998-12-30 |
EP0887127B1 EP0887127B1 (de) | 2001-10-31 |
Family
ID=7833578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98111266A Expired - Lifetime EP0887127B1 (de) | 1997-06-25 | 1998-06-18 | Ziehapparat in einer Presse |
Country Status (4)
Country | Link |
---|---|
US (1) | US6089073A (de) |
EP (1) | EP0887127B1 (de) |
DE (2) | DE19726928A1 (de) |
ES (1) | ES2167041T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002087801A1 (de) * | 2001-04-27 | 2002-11-07 | Schuler Pressen Gmbh & Co.Kg | Hydraulische zieheinrichtung |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6301949B1 (en) * | 2000-03-24 | 2001-10-16 | The Boeing Company | Press for forming workpieces |
US9103375B2 (en) | 2012-12-14 | 2015-08-11 | Aktiebolaget Skf | Cartridge bearing assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5099673A (en) * | 1989-10-10 | 1992-03-31 | L. Schuler Pressen Gmbh | Drawing apparatus in drawing stages of presses |
DE4403954A1 (de) * | 1994-02-08 | 1995-08-10 | Erfurt Umformtechnik Gmbh | Mehrpunktzieheinrichtung von mechanischen und hydraulischen Pressen |
EP0673695A1 (de) * | 1994-02-24 | 1995-09-27 | Umformtechnik ERFURT GmbH | Verfahren und Schaltungsanordnung zum Unterbrechen und Fortführen des Ziehprozesses an zweifachwirkenden Pressen, insbesondere hydraulischen Pressen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2240630A (en) * | 1939-08-18 | 1941-05-06 | French Oil Mill Machinery | Safety device for presses |
US2357508A (en) * | 1942-10-01 | 1944-09-05 | Hydraulic Dev Corp Inc | Hydraulic press |
US2653560A (en) * | 1951-04-28 | 1953-09-29 | Budd Co | Press safety jack |
DE3505984A1 (de) * | 1985-02-21 | 1986-08-21 | L. Schuler GmbH, 7320 Göppingen | Ziehapparat an pressen |
-
1997
- 1997-06-25 DE DE19726928A patent/DE19726928A1/de not_active Withdrawn
-
1998
- 1998-06-18 ES ES98111266T patent/ES2167041T3/es not_active Expired - Lifetime
- 1998-06-18 EP EP98111266A patent/EP0887127B1/de not_active Expired - Lifetime
- 1998-06-18 DE DE59801923T patent/DE59801923D1/de not_active Expired - Lifetime
- 1998-06-25 US US09/104,241 patent/US6089073A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5099673A (en) * | 1989-10-10 | 1992-03-31 | L. Schuler Pressen Gmbh | Drawing apparatus in drawing stages of presses |
DE4403954A1 (de) * | 1994-02-08 | 1995-08-10 | Erfurt Umformtechnik Gmbh | Mehrpunktzieheinrichtung von mechanischen und hydraulischen Pressen |
EP0673695A1 (de) * | 1994-02-24 | 1995-09-27 | Umformtechnik ERFURT GmbH | Verfahren und Schaltungsanordnung zum Unterbrechen und Fortführen des Ziehprozesses an zweifachwirkenden Pressen, insbesondere hydraulischen Pressen |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002087801A1 (de) * | 2001-04-27 | 2002-11-07 | Schuler Pressen Gmbh & Co.Kg | Hydraulische zieheinrichtung |
US6729173B2 (en) | 2001-04-27 | 2004-05-04 | Schuler Pressen Gmbh & Co. | Hydraulic draw press arrangement |
Also Published As
Publication number | Publication date |
---|---|
US6089073A (en) | 2000-07-18 |
ES2167041T3 (es) | 2002-05-01 |
DE19726928A1 (de) | 1999-01-07 |
DE59801923D1 (de) | 2001-12-06 |
EP0887127B1 (de) | 2001-10-31 |
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