EP0701872A1 - Installation for three-dimensional actuation of gripper bars - Google Patents
Installation for three-dimensional actuation of gripper bars Download PDFInfo
- Publication number
- EP0701872A1 EP0701872A1 EP95112134A EP95112134A EP0701872A1 EP 0701872 A1 EP0701872 A1 EP 0701872A1 EP 95112134 A EP95112134 A EP 95112134A EP 95112134 A EP95112134 A EP 95112134A EP 0701872 A1 EP0701872 A1 EP 0701872A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gripper rails
- drive
- servo motor
- motor
- movably mounted
- 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
- 238000009434 installation Methods 0.000 title 1
- 230000002441 reversible effect Effects 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
Definitions
- the invention relates to a device for the three-dimensional drive of gripper rails according to the preamble of claim 1.
- Devices of this type in a multi-column press are used for moving the sheet metal parts, inserting them into tools, removing them from them and transporting them to the following processing or removal stage.
- the movement drives of the gripper rails in the three axes should not be tapped from curves.
- either individual cams were required or maximum paths were assumed that can be achieved with a single set of cams.
- DE-C2-33 29 900 describes a device for three-dimensional transfer in which the movements of gripper rails in the three axes are brought about by servo motors.
- the motors are not in the immediate effective area of the gripper rails.
- Gear chains and linkages are required, which lead to inaccuracies in the axes at the required high accelerations with repositioning movements of, for example, 16 parts and more per minute.
- the rotary movement of the servo motor for the clamping / releasing movement is transmitted via a pinion-rack connection to slides that can move horizontally and transversely to the transfer movement.
- the same means as described above are also shown in DE-A1-32 38 729.
- the servo motors for two movements of the three-dimensional movement drive of the gripper rails are arranged in the center, but below the gripper rails in a lower part of the lock case.
- Claim 2 characterizes an advantageous embodiment according to the invention.
- the arrangement of the motor at the height of the gripper rails and slide is particularly advantageous, since this enables a direct drive for the clamping / releasing movement to be implemented.
- a servo motor with a drive shaft on both sides was integrated into the console-like structure.
- the resulting symmetrical design increases torsional rigidity.
- the lock box thus forms a functional, complete unit.
- Rails 12 for carriages 11 which can be moved transversely to the transfer direction 27 are fastened on the carrier plates 13.
- the lifting and lowering movement of the motor 17 is thus transmitted to the gripper rails.
- the slides 11 carry spacer bolts 9, which are guided upwards through cross slides 7 and carry guides 4 for the gripper rails 3 guided in them at the upper ends.
- the carrier plates 13 are supported by balancing cylinders 20.
- the console plates 16 carry a frame 6 in the upper region.
- the frame 6 is provided with guides 8 in which the cross slides 7 can be displaced in the tensioning and releasing direction 29.
- the displacement movements of the cross slides 7 are brought about by a servo motor 18 mounted in this structure at the level of the cross slides 7, the shaft of which is guided out of it on both sides.
- the shaft parts are provided as spindles 23 with a right-hand thread or with a left-hand thread.
- the threads interact with lock nuts 24, 26, cage nuts or the like. Spindle nuts in or on the cross slide 7.
- the movement drive of the gripper rails 3 takes place in the conversion direction 27 z. B. in the manner mentioned from the prior art.
- the lifting and lowering movement of the gripper rails 3 takes place starting from the motor 17, motor shaft 19 and spur gear. Pinion, rack and pinion drive 21, 22, 14 and slide 11 by means of spacers 9 on the guides 4, for which purpose the guides 12 for the slide 11 must extend over the tension-release movement path of the gripper rails 3.
- the guides 8 are also to be designed in the same way.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zum dreidimensionalen Antrieb von Greiferschienen gemäß Oberbegriff von Anspruch 1.The invention relates to a device for the three-dimensional drive of gripper rails according to the preamble of
Einrichtungen dieser Art in einer Mehrständerpresse dienen der Umsetzbewegung der Blechteile, dem Einlegen in Werkzeuge, dem Entnehmen aus diesen und dem Transport in die folgende Bearbeitungs- oder Entnahmestufe. Generell besteht hier die Forderung, die Bewegungsantriebe der Greiferschienen in den drei Achsen (dreidimensional) nicht von Kurven abzugreifen. Um bei Werkstück- bzw. Werkzeugwechsel die Presse auf die neuen Bedingungen einstellen zu können, bedurfte es entweder individueller Nocken, oder es wurde von Maximal-Wegen ausgegangen, die von einem einzigen Nockensatz erreicht werden.Devices of this type in a multi-column press are used for moving the sheet metal parts, inserting them into tools, removing them from them and transporting them to the following processing or removal stage. In general, there is a requirement here that the movement drives of the gripper rails in the three axes (three-dimensional) should not be tapped from curves. In order to be able to adjust the press to the new conditions when changing the workpiece or tool, either individual cams were required or maximum paths were assumed that can be achieved with a single set of cams.
In der DE-C2-33 29 900 ist eine Einrichtung zum dreidimensionalen Transfer beschrieben, bei der die Bewegungen von Greiferschienen in den drei Achsen durch Servo-Motore bewirkt wird. Die Motore befinden sich nicht im unmittelbaren Wirkbereich der Greiferschienen. Es sind Getriebeketten und -gestänge erforderlich, die bei den geforderten hohen Beschleunigungen bei Umsetzbewegungen von z.B. 16 Teilen und mehr je Minute zu Ungenauigkeiten in den Achsen führen. Die Drehbewegung des Servo-Motors für die Spann-Lösebewegung wird über eine Ritzel-Zahnstangenverbindung auf horizontal und quer zur Umsetzbewegung bewegliche Schlitten übertragen. Beschrieben ist ein Antrieb des Spannmechanismus unter Verwendung eines Gleichspannungs-Servo-Motors, der außerhalb des den Schließkasten ausmachenden Gehäuses gelagert ist und dessen Drehbewegung über ein Reduziergetriebe und einen Steuerriemen mit einer Kegelradanordnung verbunden ist. Diese befindet sich an der Unterseite des Gehäuses und weist eine Ausgangswelle auf zum Antrieb des Ritzels der Ritzel-Zahnstangenkombination für die Spann-Lösebewegung.DE-C2-33 29 900 describes a device for three-dimensional transfer in which the movements of gripper rails in the three axes are brought about by servo motors. The motors are not in the immediate effective area of the gripper rails. Gear chains and linkages are required, which lead to inaccuracies in the axes at the required high accelerations with repositioning movements of, for example, 16 parts and more per minute. The rotary movement of the servo motor for the clamping / releasing movement is transmitted via a pinion-rack connection to slides that can move horizontally and transversely to the transfer movement. What is described is a drive of the tensioning mechanism using a DC servo motor, which is mounted outside the housing that makes up the lock case and whose rotational movement is connected to a bevel gear arrangement via a reduction gear and a control belt. This is located on the underside of the housing and has an output shaft for driving the pinion of the pinion-rack combination for the tension-release movement.
In der japanischen Offenlegungschrift 59-197325, Appl. No. 58-71162, ist der Antrieb von Greiferschienen dargestellt, die in zwei Achsen bewegt werden. Die Spann-Lösebewegung der Greiferschienen wird von einem reversiblen Servo-Motor bewirkt, der außerhalb einer horizontal in Umsetzrichtung bewegbaren Konsole angeflanscht ist und zugleich mit dieser in Umsetzrichtung bewegt werden muß. Die Motorwelle ist einseitig aus dem Motor als Spindel herangeführt. Die Spindel weist zum einen Links-, zum anderen Rechtsgewinde auf, die mit den Greiferschienen tragenden, querverschieblichen Schlitten zusammenwirken.In Japanese laid-open publication 59-197325, Appl. No. 58-71162, the drive of gripper rails is shown, which are moved in two axes. The clamping and releasing movement of the gripper rails is effected by a reversible servo motor which is flanged outside a bracket which can be moved horizontally in the transfer direction and at the same time must be moved in the transfer direction with it. The motor shaft is brought out of the motor as a spindle on one side. On the one hand, the spindle has left-hand and on the other hand, right-hand threads, which interact with the cross-sliding carriages that carry the gripper rails.
Auch in der DE-A1-32 38 729 sind gleiche Mittel, wie zuvor beschrieben, dargestellt. Die Servo-Motoren für zwei Bewegungen des dreidimensionalen Bewegungsantriebs der Greiferschienen sind zwar mittig, aber unterhalb der Greiferschienen in einem unteren Teil des Schließkastens angeordnet.The same means as described above are also shown in DE-A1-32 38 729. The servo motors for two movements of the three-dimensional movement drive of the gripper rails are arranged in the center, but below the gripper rails in a lower part of the lock case.
Demgegenüber ist es Aufgabe der Erfindung, den Motor für die Spann-Lösebewegungen der Greiferschienen zwischen den Greiferschienen und den diese tragenden Schlitten anzuordnen, um so den durch die Größe der Werkzeuge in den Bearbeitungsstufen von den Greiferschienen beim Spannen nicht überfahrbaren Weg zu nutzen.In contrast, it is an object of the invention to arrange the motor for the clamping-releasing movements of the gripper rails between the gripper rails and the carriage carrying them, so as to use the path that cannot be traversed by the gripper rails during clamping due to the size of the tools in the processing stages.
Diese Aufgabe ist gelöst durch die Merkmale des Kennzeichens von Anspruch 1. Anspruch 2 kennzeichnet eine vorteilhafte Ausbildung nach der Erfindung.This object is achieved by the features of the characterizing part of
Von besonderem Vorteil ist die Anordnung des Motors in Höhe von Greiferschienen und Schlitten, da sich hierdurch ein Direkt-Antrieb für die Spann-Lösebewegung realisieren läßt. Es werden keine Antriebsmittel, Getriebegestänge u. dgl. in den drei Achsen bewegt. Es wurde ein Servo-Motor mit beidseitiger Antriebswelle in den konsolartigen Aufbau integriert. Durch die dadurch bewirkte symmetrische Ausbildung wird die Torsionssteifigkeit erhöht. Der Schließkasten bildet so eine funktionsfähige, komplette Baueinheit.The arrangement of the motor at the height of the gripper rails and slide is particularly advantageous, since this enables a direct drive for the clamping / releasing movement to be implemented. There are no drive means, gear linkage, etc. Like. Moved in the three axes. A servo motor with a drive shaft on both sides was integrated into the console-like structure. The resulting symmetrical design increases torsional rigidity. The lock box thus forms a functional, complete unit.
Anhand eines Ausführungsbeispiels in der Zeichnung soll im folgenden die Erfindung näher erläutert werden.The invention will be explained in more detail below using an exemplary embodiment in the drawing.
Dabei zeigen
- Fig. 1
- einen Schließkasten im Schnitt in Umsetzrichtung gesehen mit der Einrichtung nach der Erfindung,
- Fig. 2
- eine Schnittdarstellung gemäß Schnittverlauf II-II in Fig. 1 und
- Fig. 3
- den Schließkasten in Ansicht in Umsetzrichtung gesehen.
- Fig. 1
- a lock box seen in section in the direction of conversion with the device according to the invention,
- Fig. 2
- a sectional view along section line II-II in Fig. 1 and
- Fig. 3
- seen the lock box in the direction of implementation.
In den Figuren sind gleiche Teile und Baugruppen gleich numeriert. Mit 1 ist ein Schließkasten von mehreren Schließkästen einer Mehrständerpresse positioniert. Von der Presse ist nur ein Ständerpaar mit den Ständern 2 gezeigt. Der Schließkasten 1 ist über Konsolbleche 16 pressentischseitig aufgestellt. In den Konsolblechen 16 befinden sich Stirnräder 21 einer Motorwelle 19 eines Motors 17 für das Heben- und Senken von Greiferschienen 3. Die Stirnräder 21 wirken mit je einem Stirnrad 22 zusammen, das jeweils direkt auf eine in gestellseitigen Lagern 15 geführte Zahhstange 14 und über ein weiteres Stirnrad 22 auf eine zweite in Lagern 15 geführte Zahnstange 14 wirkt. Die Drehbewegung des Motors 17 wird so in eine Hebe-Senkbewegung (Doppelpfeil 28) von Trägerblechen 13 umgesetzt. Auf den Trägerblechen 13 sind Schienen 12 für in diesen quer zur Umsetzrichtung 27 bewegbare Schlitten 11 befestigt. Die Hebe-Senkbewegung des Motors 17 wird so auf die Greiferschienen übertragen. Die Schlitten 11 tragen hierfür Distanzbolzen 9, die nach oben durch Querschlitten 7 hindurchgeführt sind und an den oberen Enden Führungen 4 für die in diesen geführten Greiferschienen 3 tragen. Die Trägerbleche 13 sind durch Ausbalancierzylinder 20 abgestützt.In the figures, the same parts and assemblies are numbered the same. With 1, a lock case of several lock cases of a multi-column press is positioned. From the press, only a pair of stands with
Die Konsolbleche 16 tragen im oberen Bereich ein Gestell 6. Das Gestell 6 ist mit Führungen 8 versehen, in denen die Querschlitten 7 in Spann- und Löserichtung 29 verschieblich sind. Die Verschiebebewegungen der Querschlitten 7 werden bewirkt durch einen in diesem Aufbau in Höhe der Querschlitten 7 gelagerten Servo-Motor 18, dessen Welle beidseitig aus diesem herausgeführt ist. Die Wellenteile sind als Spindeln 23 mit Rechtsgewinde bzw. mit Linksgewinde versehen. Die Gewinde wirken mit Schloßmuttern 24, 26, Käfigmuttern od. dgl. Spindelmuttern in bzw. an den Querschlitten 7 zusammen. Der Bewegungsantrieb der Greiferschienen 3 in Umsetzrichtung 27 erfolgt z. B. in der aus dem genannten Stand der Technik genannten Weise. Die Hebe-Senkbewegung der Greiferschienen 3 erfolgt, ausgehend von dem Motor 17, Motorwelle 19 und Stirnrad,. Ritzel-, Zahnstangentrieb 21, 22, 14 und Schlitten 11 vermittels Distanzbolzen 9 auf die Führungen 4, wobei sich hierfür die Führungen 12 für die Schlitten 11 über die Spann-Lösebewegungsstrecke der Greiferschienen 3 erstrecken müssen. In gleicher Weise sind auch die Führungen 8 auszulegen.The
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4428772 | 1994-08-13 | ||
DE4428772A DE4428772A1 (en) | 1994-08-13 | 1994-08-13 | Device for three-dimensional drive of gripper rails |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0701872A1 true EP0701872A1 (en) | 1996-03-20 |
EP0701872B1 EP0701872B1 (en) | 1999-10-13 |
Family
ID=6525649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95112134A Expired - Lifetime EP0701872B1 (en) | 1994-08-13 | 1995-08-02 | Installation for three-dimensional actuation of gripper bars |
Country Status (5)
Country | Link |
---|---|
US (1) | US5779025A (en) |
EP (1) | EP0701872B1 (en) |
CZ (1) | CZ287265B6 (en) |
DE (2) | DE4428772A1 (en) |
ES (1) | ES2138690T3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0985467A3 (en) * | 1998-09-11 | 2003-05-14 | SCHULER PRESSEN GmbH & Co. | Transfer device with failure protection |
DE102011118216A1 (en) * | 2011-11-11 | 2013-05-16 | Schuler Pressen Gmbh | Drive device for a multi-axis transport of workpieces through successive processing stations of a processing machine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19615025C2 (en) * | 1996-04-17 | 1998-11-26 | Umformtechnisches Zentrum Gmbh | Device for the three-dimensional transfer of workpieces |
US5983696A (en) * | 1998-03-02 | 1999-11-16 | John H. Maher | Transfer system |
DE10023241C2 (en) | 2000-05-12 | 2003-08-07 | Hermann Hagel | Transfer device and method for controlling a transfer device |
CN1805806A (en) * | 2003-06-13 | 2006-07-19 | 阿德维尔技术控股股份公司 | Transfer device on a press |
US8161618B2 (en) * | 2007-09-17 | 2012-04-24 | Tyco Healthcare Group Lp | Method of forming barbs on a suture |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3238729A1 (en) | 1981-10-23 | 1983-05-05 | Komatsu Mfg Co Ltd | Three-dimensional transfer feed device for a transfer press |
DE3329900A1 (en) | 1982-08-19 | 1984-02-23 | Kabushiki Kaisha Komatsu Seisakusho, Tokyo | DEVICE FOR THREE-DIMENSIONAL TRANSFER OF WORKPIECES |
JPS59197325A (en) | 1983-04-22 | 1984-11-08 | Aida Eng Ltd | Transfer device by time divided control of motor |
DE3417435A1 (en) * | 1984-05-11 | 1985-11-14 | L. Schuler GmbH, 7320 Göppingen | Apparatus for modifying the position of the opening/closing stroke of the gripper rails of a transfer press |
EP0224652A1 (en) * | 1985-09-09 | 1987-06-10 | Aida Engineering Ltd. | Work piece transfer mechanism for a transfer press |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4785657A (en) * | 1985-05-17 | 1988-11-22 | Connell Limited Partnership | Transfer feed mechanism for power presses |
DE4101513A1 (en) * | 1990-02-21 | 1991-08-14 | Erfurt Umformtechnik Gmbh | Support rails for grippers for transfer press - has elements to adjust distance between rails |
DE4032340A1 (en) * | 1990-10-09 | 1992-04-16 | Erfurt Umformtechnik Gmbh | Three=dimensional transfer device for workpieces - has oscillating rail mounted on transversely movable slide |
DE4100348A1 (en) * | 1991-01-08 | 1992-07-09 | Erfurt Umformtechnik Gmbh | Adjusting device for grab rails of transfer press - has constant positive connection between grab rails and press drive |
DE4132221C2 (en) * | 1991-09-27 | 2001-02-22 | Schuler Pressen Gmbh & Co | Gripper rail transfer device of a multi-stage press |
-
1994
- 1994-08-13 DE DE4428772A patent/DE4428772A1/en not_active Withdrawn
-
1995
- 1995-08-02 EP EP95112134A patent/EP0701872B1/en not_active Expired - Lifetime
- 1995-08-02 ES ES95112134T patent/ES2138690T3/en not_active Expired - Lifetime
- 1995-08-02 DE DE59507035T patent/DE59507035D1/en not_active Expired - Lifetime
- 1995-08-11 CZ CZ19952067A patent/CZ287265B6/en not_active IP Right Cessation
- 1995-08-14 US US08/514,985 patent/US5779025A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3238729A1 (en) | 1981-10-23 | 1983-05-05 | Komatsu Mfg Co Ltd | Three-dimensional transfer feed device for a transfer press |
DE3329900A1 (en) | 1982-08-19 | 1984-02-23 | Kabushiki Kaisha Komatsu Seisakusho, Tokyo | DEVICE FOR THREE-DIMENSIONAL TRANSFER OF WORKPIECES |
JPS59197325A (en) | 1983-04-22 | 1984-11-08 | Aida Eng Ltd | Transfer device by time divided control of motor |
DE3417435A1 (en) * | 1984-05-11 | 1985-11-14 | L. Schuler GmbH, 7320 Göppingen | Apparatus for modifying the position of the opening/closing stroke of the gripper rails of a transfer press |
EP0224652A1 (en) * | 1985-09-09 | 1987-06-10 | Aida Engineering Ltd. | Work piece transfer mechanism for a transfer press |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 9, no. 63 (M - 365) 20 March 1985 (1985-03-20) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0985467A3 (en) * | 1998-09-11 | 2003-05-14 | SCHULER PRESSEN GmbH & Co. | Transfer device with failure protection |
DE102011118216A1 (en) * | 2011-11-11 | 2013-05-16 | Schuler Pressen Gmbh | Drive device for a multi-axis transport of workpieces through successive processing stations of a processing machine |
DE102011118216B4 (en) * | 2011-11-11 | 2013-09-19 | Schuler Pressen Gmbh | Drive device for a multi-axis transport of workpieces through successive processing stations of a processing machine |
US9199297B2 (en) | 2011-11-11 | 2015-12-01 | Schuler Pressen Gmbh | Drive device for multiaxial transport of workpieces through successive machining stations of a machine tool with parallelogram guides |
Also Published As
Publication number | Publication date |
---|---|
US5779025A (en) | 1998-07-14 |
CZ287265B6 (en) | 2000-10-11 |
DE4428772A1 (en) | 1996-02-15 |
EP0701872B1 (en) | 1999-10-13 |
DE59507035D1 (en) | 1999-11-18 |
CZ206795A3 (en) | 1996-02-14 |
ES2138690T3 (en) | 2000-01-16 |
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