EP1082185A1 - A deep drawing press with a ram hammer and drawing cushion driven by threaded spindles and spindle nuts - Google Patents
A deep drawing press with a ram hammer and drawing cushion driven by threaded spindles and spindle nutsInfo
- Publication number
- EP1082185A1 EP1082185A1 EP99922131A EP99922131A EP1082185A1 EP 1082185 A1 EP1082185 A1 EP 1082185A1 EP 99922131 A EP99922131 A EP 99922131A EP 99922131 A EP99922131 A EP 99922131A EP 1082185 A1 EP1082185 A1 EP 1082185A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- deep drawing
- die cushion
- press according
- drives
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw 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
- 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
- B21D24/12—Devices controlling or operating blank holders independently, or in conjunction with dies mechanically
Definitions
- the invention relates to a deep drawing press according to the preamble of patent claim 1.
- Known deep-drawing presses have a closed base frame in which a hydraulic drive cylinder for the press bear and a hydraulic support for the drawing cushion are mounted.
- the respective guides In order to adequately guide the press bear and the die cushion, the respective guides must be designed to be comparatively long in the case of appropriately large strokes, so that known deep-drawing presses have a large overall height. It is common to place part of the overall height in a pit in the machine foundation.
- the hall roof must be opened in order to be able to insert the deep-drawing press into the pit of the machine foundation from above, since the hall doors are usually not sufficiently large are measured.
- a deep-drawing press is also known (DE 43 04 329 AI), whose ram carrying the upper tool is moved by several hydraulic drive elements. This well-known deep drawing press is particularly sensitive to asymmetrical loads, which lead to the upper tool being able to tilt during its stroke.
- the deep-drawing presses which are known to be the object of the invention, on the one hand the overall height is as low as possible, and on the other hand a perfect parallel guidance of the driven press elements is possible over the entire travel path even with an eccentric load attack, the deep-drawing press being comparatively inexpensive to manufacture can be installed in conventional machine halls in the hall floor and on the hall roof without special construction measures and the movement sequence of the movable press parts can be controlled easily and precisely.
- the arrangement of several, non-slip, coupled electric motor drives for a feed system consisting of threaded spindle and spindle nut for both the press bear and the die cushion ensures that the overall height of the deep drawing press is significantly reduced compared to known hydraulic deep drawing presses.
- the feed system consisting of a threaded spindle and a spindle nut, allows the guide surfaces to be arranged between the press bar and the lower part of the press. Due to the design according to the invention, it is no longer necessary to support the drive for the press bear on an area of the machine frame which is rigidly connected to the lower press part. Sufficient guide surfaces, for example in the form of guide columns, between the lower part of the press and the press bar and threaded spindles extending to the top of the press bar in its highest stroke position are sufficient.
- the die cushion can be lowered via a drive or output with a spindle and spindle nuts, and the drive or output of all four spindles is coupled without slippage, special vertical guides are unnecessary for the die cushion.
- the drives and / or drives of both the press bear and the drawing cushion are connected in a slip-free manner via electrical shafts.
- Electric drives or drives have the significant advantage that they can be connected to one another without slip using electrical connections alone, and they also have the advantage that the drive parameters can be controlled very precisely by the program. This creates the possibility to change the press pressure depending on the press travel during the deep-drawing process, as for the best possible deep-drawing result appears necessary.
- Such a program-controlled process can be extremely simple ⁇ be werkstelligt.
- Figure 1 a section through a deep drawing press in ge ⁇ opened state according to level I - I in Fig. 4;
- Figure 2 the section through the deep drawing press in the closed state according to Fig. 1;
- Figure 3 - a plan view in the direction of arrow
- the base plate la On a foundation 17, the base plate la is a Pres ⁇ anchored senunterteils. 1
- the lower press part 1 carries guide columns 3, on which a press bear 2 is guided.
- a drawing die On the press bear 2, a drawing die is clamped as the upper tool part 7a, which with a lower tool part 7b cooperates.
- the lower tool part 7b is clamped with its tool base plate 10 on the press table of the lower press part 1.
- the tool base plate 10 is penetrated by drawing pins 9, which carry a drawing ring 8 on which a drawing plate 11 is available as a blank for a drawing process.
- the drawing pins 9 are guided in guide bores 1c of the lower press part 1 and are supported on a drawing cushion 12.
- Spindle nuts 14 for engagement with threaded spindles 13 are fastened to the die cushion 12.
- the threaded spindles 13 are each driven by an angular gear unit 15 consisting of an angular gear 15b and a drive motor 15a. Between the threaded spindle 13 and the lower press part 1 or its base plate 1 a, a pressure measuring element 16 is provided, according to the signals of which the associated drive motor 15 a is controlled.
- the die cushion 12, the motor-angle gear units 15 and the threaded spindles 4 are arranged in a receiving space 1b within the lower press part 1.
- spindle nuts 5 are also non-rotatably and immovably fastened, into which threaded spindles 4 engage, which are rotatably mounted in the press bar 2.
- a motor-angular gear unit 6 is attached to the top of the press bar 2 for each threaded spindle 4, whose motor 6a drives the threaded spindle 4 by means of the angular gear 6b.
- the motors 6a, the angular gear 6b or the threaded spindles 4 can be coupled to one another by a slip-free connection, so that a one-sided introduction of force into the press bar 2 during Closing the tool 7 can not lead to tilting of the press bear 2.
- the guide columns 3 of the press bear 2 therefore remain largely free of transverse forces.
- the operator shown schematically in average size next to the deep-drawing press, clarifies that the drawing plate 11 can be inserted and removed from the deep-drawing press at shoulder height without parts of the deep-drawing press having to be laid below the level of the foundation. A stage for the operator is also not required.
- a threaded spindle 4 is arranged in the corner areas of the press bear 2, which is driven by a motor-angular gear unit 6 is rotated.
- the drive motors 6a are interconnected by electrical shafts, not shown. As a result, the clamping surfaces of the press bear 2 are guided exactly parallel to their starting position.
- the die cushion 12 is prevented from tilting by four motor angular gear units 15 which are arranged in the corner regions of the die cushion 12 and which are electrically or mechanically connected to one another in a slip-free manner.
- 4 shows the lower tool part 7b without a drawing plate 11.
- a plurality of guide bores 1c are provided above the drawing cushion 12, of which only a few guide bores 1c lying under the drawing ring 8 are occupied by drawing pins 9.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19821159A DE19821159A1 (en) | 1998-05-12 | 1998-05-12 | Deep draw press |
DE19821159 | 1998-05-12 | ||
PCT/EP1999/002817 WO1999058265A1 (en) | 1998-05-12 | 1999-04-27 | A deep drawing press with a ram hammer and drawing cushion driven by threaded spindles and spindle nuts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1082185A1 true EP1082185A1 (en) | 2001-03-14 |
EP1082185B1 EP1082185B1 (en) | 2002-03-27 |
Family
ID=7867473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99922131A Expired - Lifetime EP1082185B1 (en) | 1998-05-12 | 1999-04-27 | A deep drawing press with a ram hammer and drawing cushion driven by threaded spindles and spindle nuts |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1082185B1 (en) |
AT (1) | ATE214982T1 (en) |
DE (2) | DE19821159A1 (en) |
WO (1) | WO1999058265A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2331277A1 (en) * | 2005-03-07 | 2009-12-28 | Muller Weingarten Ag | Die cushion device having a numerically controlled drive and a hydraulic pad |
DE102008034971A1 (en) | 2008-07-25 | 2010-01-28 | Müller Weingarten AG | Drive system of a forming press |
DE202018002280U1 (en) | 2018-05-04 | 2019-08-06 | Hypneu Gmbh Hydraulik Und Pneumatik | Hydraulic circuit for keeping parallel at least two hydraulic cylinders on a lightweight press |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4722558B2 (en) * | 2004-06-01 | 2011-07-13 | 株式会社小松製作所 | Die cushion device |
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 |
WO2007019984A1 (en) * | 2005-08-18 | 2007-02-22 | Huelshorst Johannes | Press |
DE102006014705B3 (en) * | 2006-03-30 | 2007-07-05 | Krauss-Maffei Kunststofftechnik Gmbh | Punching apparatus for plastic molding, has drive with spindle/nut combination, where movement of punching device relative to base plate is effected by relative rotation of spindle and nut by electric motor |
DE102006025271B3 (en) * | 2006-05-31 | 2007-12-27 | Schuler Pressen Gmbh & Co. Kg | Drawing device with hydrostatic spindle bearing |
DE102006033562B3 (en) * | 2006-07-20 | 2008-02-28 | Schuler Pressen Gmbh & Co. Kg | Servo press with energy management |
DE102006056520A1 (en) * | 2006-11-30 | 2008-06-05 | Schuler Pressen Gmbh & Co. Kg | Press e.g. transverse flux press, for deformation of workpiece, has plunger drive with drive source connected to tappet and executing continuous drive motion, and another drive source connected to stilt end and performing drive movement |
DE102006057051A1 (en) * | 2006-11-30 | 2008-07-03 | Müller Weingarten AG | Forming press with die cushion functionality integrated in the sliding table |
DE102006058629B3 (en) * | 2006-12-13 | 2008-07-10 | Schuler Pressen Gmbh & Co. Kg | Cooling arrangement for a capacitor |
DE102006058630B4 (en) * | 2006-12-13 | 2012-12-06 | Schuler Pressen Gmbh & Co. Kg | Electro-hydraulic press main or auxiliary drive device, in particular electro-hydraulic die cushion drive |
WO2008134990A1 (en) * | 2007-05-02 | 2008-11-13 | Müller Weingarten AG | Drive system of a multi-ram forming press |
EP2008799A1 (en) | 2007-06-28 | 2008-12-31 | Bruderer Ag | Die cutting press |
DE102007044259B4 (en) | 2007-09-17 | 2010-06-17 | Schuler Pressen Gmbh & Co. Kg | Drawing tool with short force path |
DE102008060043B3 (en) | 2008-12-02 | 2010-07-29 | Germas Ag | screw press |
DE202010007238U1 (en) | 2010-05-24 | 2010-10-07 | H & T Produktions Technologie Gmbh | Servo Friction Press |
BR112013003446A2 (en) * | 2010-08-15 | 2021-05-25 | Schuler Pressen Gmbh | embedding press with static plate retention |
DE102010051958A1 (en) | 2010-11-19 | 2012-05-24 | Germas Ag | A die cushion device |
DE102011001314C5 (en) * | 2011-03-16 | 2016-03-03 | Schuler Pressen Gmbh | Drawing press with two lockable rams |
DE102011016669B4 (en) | 2011-04-12 | 2016-03-24 | Schuler Pressen Gmbh | Method for operating a press with sub-drive and then operated press |
ITMI20120197A1 (en) * | 2012-02-14 | 2013-08-15 | Cesare Galdabini S P A | PRESS FOR PRINTING, AND IN PARTICULAR DRAWING, SHEETS |
DE202012100785U1 (en) * | 2012-03-06 | 2012-05-09 | Stratos Gmbh Christoph Staroske | Device for chipless shaping / forming a flat workpiece |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4292190T1 (en) * | 1991-07-01 | 1994-06-09 | Komatsu Mfg Co Ltd | Die cushion device for press |
JP2660784B2 (en) * | 1992-08-07 | 1997-10-08 | 月島機械株式会社 | Drive device for multiple moving members |
DE4304329A1 (en) * | 1993-02-13 | 1994-08-18 | Lothar Wanzke | Thermoforming press |
-
1998
- 1998-05-12 DE DE19821159A patent/DE19821159A1/en not_active Withdrawn
-
1999
- 1999-04-27 DE DE59901068T patent/DE59901068D1/en not_active Expired - Lifetime
- 1999-04-27 AT AT99922131T patent/ATE214982T1/en active
- 1999-04-27 WO PCT/EP1999/002817 patent/WO1999058265A1/en active IP Right Grant
- 1999-04-27 EP EP99922131A patent/EP1082185B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9958265A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2331277A1 (en) * | 2005-03-07 | 2009-12-28 | Muller Weingarten Ag | Die cushion device having a numerically controlled drive and a hydraulic pad |
DE102008034971A1 (en) | 2008-07-25 | 2010-01-28 | Müller Weingarten AG | Drive system of a forming press |
US8910569B2 (en) | 2008-07-25 | 2014-12-16 | Mueller Weingarten Ag | Drive system for a forming press |
DE202018002280U1 (en) | 2018-05-04 | 2019-08-06 | Hypneu Gmbh Hydraulik Und Pneumatik | Hydraulic circuit for keeping parallel at least two hydraulic cylinders on a lightweight press |
Also Published As
Publication number | Publication date |
---|---|
WO1999058265A1 (en) | 1999-11-18 |
DE59901068D1 (en) | 2002-05-02 |
EP1082185B1 (en) | 2002-03-27 |
ATE214982T1 (en) | 2002-04-15 |
DE19821159A1 (en) | 1999-11-25 |
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