EP1600228B1 - Device for intermittently driving a spindle of a workpiece holder, in particular of a forging machine - Google Patents
Device for intermittently driving a spindle of a workpiece holder, in particular of a forging machine Download PDFInfo
- Publication number
- EP1600228B1 EP1600228B1 EP05450093A EP05450093A EP1600228B1 EP 1600228 B1 EP1600228 B1 EP 1600228B1 EP 05450093 A EP05450093 A EP 05450093A EP 05450093 A EP05450093 A EP 05450093A EP 1600228 B1 EP1600228 B1 EP 1600228B1
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- European Patent Office
- Prior art keywords
- drive
- carrier
- spindle
- gear
- diverting rollers
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- 238000005242 forging Methods 0.000 title claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 abstract description 2
- 238000010516 chain-walking reaction Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000003534 oscillatory effect Effects 0.000 description 2
- 241000600039 Chromis punctipinnis Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/10—Manipulators
- B21J13/12—Turning means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
- Y10T74/18832—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
- Y10T74/18832—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.]
- Y10T74/1884—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.] with sprocket wheel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
- Y10T74/18832—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.]
- Y10T74/18848—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.] with pulley
Definitions
- the invention relates to a device for intermittently driving a spindle for a workpiece holder, in particular a forging machine, with a traction mechanism out of a endlessly driven around a drive wheel and an output traction means, with a continuous rotary drive for the drive wheel and with a torsional oscillatory superposition drive.
- the arrangement of the spring accumulator in the axial extension of the worm of the worm gear impairs access to the spring elements of the spring accumulator, which complicates the adaptation of the oscillation frequency of the superposition drive to the frequency of blow of the forging tools by replacing the spring elements of the spring accumulator.
- the invention is therefore an object of the invention to provide a device for intermittently driving a spindle for a workpiece holder, in particular a forging machine of the type described in such a way that the design effort is reduced and the adaptation of the rotary oscillating superposition drive can be facilitated to the respective requirements.
- the invention solves this problem by the fact that the superposition drive has a rotatably movable about the axis of the driven wheel carrier and mounted on the support pulleys for the supply in relation to the drive wheel and running Gebtrume.
- the output gear is rotatably displaced, so that the continuous rotary drive of the drive wheel with the help of the superposition drive torsional vibrations are superimposed, which lead to an intermittent drive of the driven wheel.
- the required for the intermittent drive of the driven wheel torsional vibration of the carrier about the axis of the driven wheel can be achieved according to the respective requirements in different ways, so that open up advantageous adjustment options.
- the support for the deflection rollers can be hinged in a simple manner to a spring accumulator, which ensures the intermittent drive for the spindle by resonance-induced torsional vibrations of the carrier after an excitation by periodically holding the workpiece driven via the spindle.
- belts or chains can be used as a traction device for the traction mechanism ropes.
- Particularly advantageous construction conditions arise when the traction mechanism is designed as a toothed belt transmission, because with the timing belt a positive connection between the arrival and the driven wheel is achieved without special design effort.
- the illustrated apparatus for intermittently driving a spindle 1 for a workpiece holder for example, a chuck for a forging workpiece, has a frame 2, in which the spindle 1 is not only rotatable about bearings 3, but also axially displaceable.
- a positioning cylinder 4 for axial adjustment of the spindle 1 is a positioning cylinder 4.
- a rotary drive 5 is provided, which is in drive connection with the drive wheel 6 of a traction mechanism 7.
- the output gear 8 of the traction mechanism 7 is seated on a hollow shaft 9, which is formed, for example, as Drivenutwelle for rotationally fixed, but axially displaceable recording of the spindle 1.
- the spindle could be axially displaced with the rotary drive 5.
- the traction mechanism 7 is combined with a superposition drive 10 to form a unit in order to drive the spindle 1 intermittently via the output gear 8 can.
- a carrier 11 is provided for two on both sides of the driven wheel 8 provided pulleys 12, via which the traction means 13 of the traction mechanism 7, in Embodiment, a toothed belt is guided endless, as can be seen in particular in FIG. 1.
- the arrangement is made such that in a drawn in Fig. 1 center position of the carrier 11, the two guide rollers 12 are symmetrical to a common axial plane through the drive wheel 6 and the output gear 8 of the traction mechanism 7.
- a spring 16 is provided, which is hinged on the one hand on the frame 2 and on the other hand to an arm 17 of the carrier 11.
- This spring memory 16 which can be stretched from the illustrated center position shown in FIG. 1 to both sides, is stretched when holding the forging by the attacking him blacksmith tools on the carrier 11 when the pulleys 12 by the continuously driven traction means the fixed to the spindle 1 driven wheel 8 are rotated about the axis of the driven wheel 8.
- the stored energy in the spring 16 is used for turning back the carrier 11, while the spindle 1 is released by the forging tools, so that for the carrier 11 an excited by the forging tools, rotationally oscillating drive with the effect that the spindle 1 despite the continuous Rotary drive 5 is driven intermittently in synchronism with the Schmiederwerkmaschineen.
- the torsionally vibrating drive of the carrier 11 does not need to be done by a spring 16. It can be used different vibration drives, if only ensures that these vibration drives are controlled synchronously to drive the forging tools.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zum intermittierenden Antreiben einer Spindel für eine Werkstückhalterung, insbesondere einer Schmiedemaschine, mit einem Zugmittelgetriebe aus einem endlos um ein Antriebrad und ein Abtriebrad geführten Zugmittel, mit einem kontinuierlichen Drehantrieb für das Antriebrad und mit einem Drehschwingungen ausführenden Überlagerungsantrieb.The invention relates to a device for intermittently driving a spindle for a workpiece holder, in particular a forging machine, with a traction mechanism out of a endlessly driven around a drive wheel and an output traction means, with a continuous rotary drive for the drive wheel and with a torsional oscillatory superposition drive.
Beim Rundschmieden wird das über einen Spannkopf gehaltene und mit Hilfe einer Spindel angetriebene Werkstück während des Eingriffs der Schmiedewerkzeuge gegen ein Mitdrehen mit der Spindel durch die Schmiedewerkzeuge festgehalten, was zu einer Torsionsbelastung des Werkstücks führt, wenn nicht ein entsprechend intermittierender Antrieb für die Spindel vorgesehen wird. Zu diesem Zweck ist es bekannt (AT 278 481 B), die Spindel über ein Schneckengetriebe anzutreiben, dessen axial verschiebbar in einer hohlen Antriebswelle gelagerte Schnecke sich axial an einem Federspeicher abstützt. Dem kontinuierlichen Drehantrieb der Schnecke über ein Riemengetriebe kann sich somit ein drehschwingender Antrieb durch das Schneckengetriebe überlagern, wenn die Schnecke axial verlagert wird. Diese axiale Verlagerung tritt beim Festhalten des Werkstückes durch die Schmiedewerkzeuge auf, wobei der dabei gespannte Federspeicher für eine axiale Rückstellbewegung der Schnecke sorgt, sobald das Werkstück durch die Schmiedewerkzeuge wieder freigegeben wird. Bei einer entsprechenden Abstimmung des Resonanzverhaltens des Federspeichers auf das schwingungsfähige Antriebsystem kann somit ein mit dem Antrieb der Schmiedewerkzeuge synchroner, intermittierender Antrieb für die Spindel erreicht werden. Nachteilig bei dieser bekannten Antriebsvorrichtung für die Spindel einer Schmiedemaschine ist jedoch der vergleichsweise große Konstruktionsaufwand. Außerdem beeinträchtigt die Anordnung des Federspeichers in axialer Verlängerung der Schnecke des Schneckengetriebes den Zugang zu den Federelementen des Federspeichers, was die Anpassung der Schwingungsfrequenz des Überlagerungsantriebes an die Schlagfrequenz der Schmiedewerkzeuge durch ein Austauschen der Federelemente des Federspeichers erschwert.In forging, the chuck-held and spindle-driven workpiece is held against forging by the forging tools during engagement of the forging tools, resulting in torsional loading of the workpiece unless a correspondingly intermittent drive is provided for the spindle , For this purpose it is known (AT 278 481 B) to drive the spindle via a worm gear, the axially displaceably mounted in a hollow drive shaft screw is axially supported on a spring accumulator. The continuous rotary drive of the screw via a belt drive can thus be superimposed by a rotary-oscillating drive by the worm gear when the worm is displaced axially. This axial displacement occurs during gripping of the workpiece by the forging tools, wherein the thereby tensioned spring accumulator ensures an axial return movement of the screw as soon as the workpiece is released by the forging tools again. With a corresponding vote of the resonance behavior of the spring accumulator on the oscillatory drive system can thus a synchronous with the drive of the forging tools, intermittent drive for the spindle can be achieved. A disadvantage of this known drive device for the spindle of a forging machine, however, is the relatively large design effort. In addition, the arrangement of the spring accumulator in the axial extension of the worm of the worm gear impairs access to the spring elements of the spring accumulator, which complicates the adaptation of the oscillation frequency of the superposition drive to the frequency of blow of the forging tools by replacing the spring elements of the spring accumulator.
Der Erfindung liegt somit die Aufgabe zugrunde, eine Vorrichtung zum intermittierenden Antreiben einer Spindel für eine Werkstückhalterung, insbesondere einer Schmiedemaschine, der eingangs geschilderten Art so auszugestalten, daß der Konstruktionsaufwand verringert und die Anpassung des drehschwingenden Überlagerungsantriebes an die jeweiligen Anforderungen erleichtert werden kann.The invention is therefore an object of the invention to provide a device for intermittently driving a spindle for a workpiece holder, in particular a forging machine of the type described in such a way that the design effort is reduced and the adaptation of the rotary oscillating superposition drive can be facilitated to the respective requirements.
Die Erfindung löst die gestellte Aufgabe dadurch, daß der Überlagerungsantrieb einen um die Achse des Abtriebrades drehschwingend verlagerbaren Träger und auf dem Träger gelagerte Umlenkrollen für die hinsichtlich des Antriebrades zu- und ablaufenden Zugmitteltrume aufweist.The invention solves this problem by the fact that the superposition drive has a rotatably movable about the axis of the driven wheel carrier and mounted on the support pulleys for the supply in relation to the drive wheel and running Zugmitteltrume.
Da zufolge dieser Maßnahmen der Überlagerungsantrieb mit dem Zugmittelgetriebe zu einer Baueinheit verbunden wird, ergeben sich einfache Konstruktionsverhältnisse. Es ist ja lediglich ein um die Achse des Abtriebrades drehschwingend verlagerbarer Träger mit Umlenkrollen für die hinsichtlich des Antriebrades zu- und ablaufseitigen Zugmitteltrume vorzusehen. Wird nun der Träger um die Achse des Abtriebrades verdreht, so verlängert sich das Zugmitteltrum zwischen dem Antriebrad und der Umlenkrolle auf der einen Seite, während sich das Zugmitteltrum zwischen Antriebrad und Umlenkrolle auf der anderen Seite verkürzt, was einen Ausgleich über das zwischen den beidseitigen Umlenkrollen über das Abtriebrad geführte Zugmitteltrum erfordert, mit dessen Verlagerung eine Drehbewegung des Abtriebrades verbunden ist. Durch ein Hin- und Herdrehen des Trägers wird somit das Abtriebrad drehschwingend verlagert, so daß dem kontinuierlichen Drehantrieb des Antriebrades mit Hilfe des Überlagerungsantriebes Drehschwingungen überlagert werden, die zu einem intermittierenden Antrieb des Abtriebrades führen. Die für den intermittierenden Antrieb des Abtriebrades erforderliche Drehschwingung des Trägers um die Achse des Abtriebrades kann in unterschiedlicher Weise den jeweiligen Anforderungen entsprechend erreicht werden, so daß sich vorteilhafte Anpassungsmöglichkeiten eröffnen.Since, according to these measures, the superposition drive with the traction mechanism is connected to form a structural unit, simple construction conditions result. It is only a rotatable about the axis of the driven wheel displaceable carrier with pulleys for the supply in relation to the drive wheel and drain side Zugmitteltrume provided. Now, if the carrier is rotated about the axis of the driven wheel, the Zugmitteltrum extended between the drive and the pulley on one side, while the Zugmitteltrum shortened between the drive wheel and pulley on the other side, which compensates for the between the two-sided pulleys via the driven wheel driven Zugmitteltrum requires, with the displacement of a rotational movement of the driven wheel is connected. By a back and forth rotation of the carrier thus the output gear is rotatably displaced, so that the continuous rotary drive of the drive wheel with the help of the superposition drive torsional vibrations are superimposed, which lead to an intermittent drive of the driven wheel. The required for the intermittent drive of the driven wheel torsional vibration of the carrier about the axis of the driven wheel can be achieved according to the respective requirements in different ways, so that open up advantageous adjustment options.
Sind die Umlenkrollen in einer Mittelstellung des Trägers symmetrisch zu einer gemeinsamen Axialebene des Antrieb- und des Abtriebrades gelagert, so ergeben sich einfache Konstruktionsverhältnisse, weil die Verlängerungen und Verkürzungen der Zugmitteltrume auf den beiden Seiten des Antriebrades aneinander weitgehend angeglichen werden können, was zusätzliche Spanneinrichtungen für das Zugmittel überflüssig macht.Are the pulleys mounted symmetrically in a central position of the carrier to a common axial plane of the drive and the driven wheel, so simple construction conditions, because the extensions and shortening Zugmitteltrume on the two sides of the drive wheel to each other can be largely aligned, which additional clamping devices for makes the traction device superfluous.
Eine weitere Konstruktionsvereinfachung ergibt sich, wenn das Abtriebrad zwischen die beidseitigen Umlenkrollen ragt und das Zugmitteltrum zwischen den beidseitigen Umlenkrollen über den zwischen die Umlenkrollen ragenden Umfangsabschnitt des Abtriebrades geführt wird. Allerdings verlangt eine solche Zugmittelführung ein Zugmittel, das auf seiner Innenseite mit dem Antriebrad und auf seiner Außenseite mit dem Abtriebrad zusammenwirkt.A further design simplification results when the driven wheel protrudes between the two-sided deflection rollers and the Zugmitteltrum is guided between the two-sided deflection rollers on the protruding between the pulleys peripheral portion of the driven wheel. However, such a Zugmittelführung requires a traction means which interacts on its inside with the drive wheel and on its outer side with the driven wheel.
Wie bereits ausgeführt wurde, stehen für den drehschwingenden Antrieb des Trägers um die Achse des Abtriebrades unterschiedliche Möglichkeiten offen, zumal der Träger keine einschränkenden Baubedingungen vorgibt. So kann der Träger für die Umlenkrollen in einfacher Weise an einen Federspeicher angelenkt werden, der nach einer Anregung durch ein periodisches Festhalten des über die Spindel angetriebenen Werkstückes den intermittierenden Antrieb für die Spindel durch resonanzbedingte Drehschwingungen des Trägers sicherstellt. Es ist aber auch möglich, den Träger für die Umlenkrollen über einen Schwingungsantrieb anzutreiben, der in Abhängigkeit vom Werkzeugantrieb gesteuert wird, was bei Änderungen im Bereich des Werkzeugantriebes ein sonst erforderliches Anpassen des Federspeichers überflüssig macht.As already stated, different possibilities are available for the torsionally vibrating drive of the carrier about the axis of the driven wheel, especially since the carrier does not specify any restrictive construction conditions. Thus, the support for the deflection rollers can be hinged in a simple manner to a spring accumulator, which ensures the intermittent drive for the spindle by resonance-induced torsional vibrations of the carrier after an excitation by periodically holding the workpiece driven via the spindle. But it is also possible to drive the support for the pulleys via a vibratory drive, which is controlled in dependence on the tool drive, resulting in changes in the field of tool drive makes an otherwise necessary adjustment of the spring accumulator superfluous.
Als Zugmittel für das Zugmittelgetriebe können Seile, Riemen oder Ketten zum Einsatz kommen. Besonders vorteilhafte Konstruktionsverhältnisse ergeben sich jedoch, wenn das Zugmittelgetriebe als Zahnriemengetriebe ausgebildet ist, weil mit dem Zahnriemen eine formschlüssige Verbindung zwischen dem An- und dem Abtriebrad ohne besonderen konstruktiven Aufwand erreicht wird.As a traction device for the traction mechanism ropes, belts or chains can be used. Particularly advantageous construction conditions, however, arise when the traction mechanism is designed as a toothed belt transmission, because with the timing belt a positive connection between the arrival and the driven wheel is achieved without special design effort.
In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen
- Fig. 1
- eine erfindungsgemäße Vorrichtung zum intermittierenden Antreiben einer Spindel für eine Werkstückhalterung in einer vereinfachten Stirnansicht und
- Fig. 2
- diese Vorrichtung in einem Schnitt nach der Linie II-II der Fig. 1.
- Fig. 1
- an inventive device for intermittently driving a spindle for a workpiece holder in a simplified end view and
- Fig. 2
- this device in a section along the line II-II of Fig. 1st
Die dargestellte Vorrichtung zum intermittierenden Antreiben einer Spindel 1 für eine Werkstückhalterung, beispielsweise einen Spannkopf für ein Schmiedewerkstück, weist ein Gestell 2 auf, in dem die Spindel 1 über Lager 3 nicht nur drehbar, sondern auch axial verschiebbar gelagert ist. Zum axialen Verstellen der Spindel 1 dient ein Stellzylinder 4. Zur Drehung der Spindel 1 ist ein Drehantrieb 5 vorgesehen, der mit dem Antriebrad 6 eines Zugmittelgetriebes 7 in Antriebsverbindung steht. Das Abtriebrad 8 des Zugmittelgetriebes 7 sitzt auf einer Hohlwelle 9, die beispielsweise als Vielnutwelle zur drehfesten, aber axial verschiebbaren Aufnahme der Spindel 1 ausgebildet ist. Statt der gegenüber dem Drehantrieb 5 axial verstellbaren Spindel 1 könnte die Spindel auch mit dem Drehantrieb 5 axial verlagert werden.The illustrated apparatus for intermittently driving a
Das Zugmittelgetriebe 7 ist mit einem Überlagerungsantrieb 10 zu einer Baueinheit zusammengefaßt, um die Spindel 1 über das Abtriebrad 8 intermittierend antreiben zu können. Zu diesem Zweck ist auf der Hohlwelle 9 ein Träger 11 für zwei beidseits des Abtriebrades 8 vorgesehene Umlenkrollen 12 vorgesehen, über die das Zugmittel 13 des Zugmittelgetriebes 7, im Ausführungsbeispiel ein Zahnriemen, endlos geführt ist, wie dies insbesondere der Fig. 1 entnommen werden kann. Die Anordnung ist dabei so getroffen, daß in einer in der Fig. 1 gezeichneten Mittelstellung des Trägers 11 die beiden Umlenkrollen 12 symmetrisch zu einer gemeinsamen Axialebene durch das Antriebrad 6 und das Abtriebrad 8 des Zugmittelgetriebes 7 liegen. Wird der Träger aus der mittleren Stellung verdreht, so wird eines der beiden Zugmitteltrume 14 zwischen dem Antriebrad 6 einerseits und den beiden Umlenkrollen 12 anderseits verlängert und das andere verkürzt, was eine Verlagerung des über das Abtriebrad 8 geführten Zugmitteltrums 15 zwischen den Umlenkrollen 12 zum Längenausgleich der Zugmitteltrume 14 und damit eine Drehung des Abtriebrades 8 zur Folge hat. Da diese Drehung des Abtriebrades 8 von der Drehrichtung des Trägers 11 abhängt, kann durch einen drehschwingenden Antrieb des Trägers 11 das Abtriebrad 8 hin- und hergedreht werden, wobei sich dieser drehschwingende Antrieb des Abtriebrades 8 der kontinuierlichen Umlaufbewegung des Zugmittels 13 durch das angetriebene Antriebrad 6 überlagert und den geforderten intermittierenden Antrieb für die Spindel 1 sichert.The
Zum drehschwingenden Antrieb des Trägers 11 ist ein Federspeicher 16 vorgesehen, der einerseits am Gestell 2 und anderseits an einem Arm 17 des Trägers 11 angelenkt ist. Dieser Federspeicher 16, der aus der dargestellten Mittelstellung gemäß der Fig. 1 nach beiden Seiten hin gespannt werden kann, wird beim Festhalten des Schmiedewerkstückes durch die an ihn angreifenden Schmiedewerkzeuge über den Träger 11 gespannt, wenn durch das kontinuierlich angetriebene Zugmittel 13 die Umlenkrollen 12 gegenüber dem mit der Spindel 1 festgehaltenen Abtriebrad 8 um die Achse des Abtriebrades 8 gedreht werden. Die im Federspeicher 16 gespeicherte Energie dient zum Rückdrehen des Trägers 11, während die Spindel 1 durch die Schmiedewerkzeuge freigegeben wird, so daß sich für den Träger 11 ein durch die Schmiedewerkzeuge angeregter, drehschwingender Antrieb mit der Wirkung ergibt, daß die Spindel 1 trotz des kontinuierlichen Drehantriebes 5 synchron zu den Schmiederwerkzeugen intermittierend angetrieben wird.For torsionally vibrating drive of the
Der drehschwingende Antrieb des Trägers 11 braucht jedoch keineswegs durch einen Federspeicher 16 zu erfolgen. Es können unterschiedliche Schwingungsantriebe eingesetzt werden, wenn nur sichergestellt ist, daß diese Schwingungsantriebe synchron zum Antrieb der Schmiedewerkzeuge gesteuert werden.However, the torsionally vibrating drive of the
Claims (6)
- Device for intermittently driving a spindle (1) for a workpiece holder, in particular of a forging machine, having a traction gear (7) comprising a traction means (13) guided endlessly around a driving gear (6) and an output gear (8), with a continuous rotary drive (5) for the driving gear (6) and with an incremental drive (10) carrying out torsional vibrations, characterised in that the incremental drive (10) comprises a carrier (11) which can be moved with torsional vibration around the axis of the output gear (8) and diverting rollers (12) mounted on the carrier (11) for the belt sections (14) running to and from the driving gear (6).
- Device according to claim 1, characterised in that the diverting rollers (12) are mounted, in a middle position of the carrier (11), symmetrically to a common axial plane of the driving gear and output gear (6, 8).
- Device according to claim 1 or 2, characterised in that the output gear (8) projects between the diverting rollers (12) on both sides and in that the belt section (15) runs between the diverting rollers (12) on both sides over the peripheral section of the output gear (8) projecting between the diverting rollers (12).
- Device according to one of the claims 1 to 3, characterised in that the carrier (11) for the diverting rollers (12) rests on a spring-loaded accumulator (16).
- Device according to one of the claims 1 to 5, characterised in that the carrier (11) for the diverting rollers (12) is connected to an oscillating drive.
- Device according to one of the claims 1 to 5. characterised in that the traction gear (7) is designed as a cog belt drive.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT05450093T ATE344703T1 (en) | 2004-05-26 | 2005-05-24 | DEVICE FOR INTERMITTENTLY DRIVING A SPINDLE FOR A WORKPIECE HOLDER, IN PARTICULAR A FORGING MACHINE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT9052004 | 2004-05-26 | ||
AT0090504A AT501482B8 (en) | 2004-05-26 | 2004-05-26 | DEVICE FOR INTERMITTENTLY DRIVING A SPINDLE FOR A WORKPIECE BRACKET, ESPECIALLY A FORGING MACHINE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1600228A1 EP1600228A1 (en) | 2005-11-30 |
EP1600228B1 true EP1600228B1 (en) | 2006-11-08 |
Family
ID=34943338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05450093A Active EP1600228B1 (en) | 2004-05-26 | 2005-05-24 | Device for intermittently driving a spindle of a workpiece holder, in particular of a forging machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US7678001B2 (en) |
EP (1) | EP1600228B1 (en) |
AT (2) | AT501482B8 (en) |
DE (1) | DE502005000171D1 (en) |
ES (1) | ES2276385T3 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011082764A1 (en) * | 2010-10-13 | 2012-04-19 | Schaeffler Technologies Gmbh & Co. Kg | Clamping device for a traction mechanism drive of an internal combustion engine |
DE102013002993A1 (en) * | 2013-02-22 | 2014-08-28 | Schaeffler Technologies Gmbh & Co. Kg | Starter Generator - Belt Tensioner |
JP2014232284A (en) * | 2013-05-30 | 2014-12-11 | ブラザー工業株式会社 | Image forming apparatus |
FR3018712B1 (en) * | 2014-03-20 | 2016-12-30 | Arts | DRILLING TOOL WITH TWO COAXIAL ENGINES |
AT516507B1 (en) | 2014-12-02 | 2016-06-15 | Gfm-Gmbh | forging machine |
US9528576B2 (en) | 2015-04-14 | 2016-12-27 | Deere & Company | Drive system with hydraulic idler tensioner |
CN112664630B (en) * | 2021-03-18 | 2021-05-14 | 华南新海(深圳)科技股份有限公司 | Adjustable external drive type intermittent butt joint transmission mechanism |
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EP1437528B1 (en) * | 2003-01-10 | 2010-03-10 | Muhr und Bender KG | Belt tensioner |
-
2004
- 2004-05-26 AT AT0090504A patent/AT501482B8/en not_active IP Right Cessation
-
2005
- 2005-05-24 AT AT05450093T patent/ATE344703T1/en active
- 2005-05-24 DE DE502005000171T patent/DE502005000171D1/en active Active
- 2005-05-24 EP EP05450093A patent/EP1600228B1/en active Active
- 2005-05-24 ES ES05450093T patent/ES2276385T3/en active Active
- 2005-05-25 US US11/137,000 patent/US7678001B2/en active Active
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DE502005000171D1 (en) | 2006-12-21 |
ATE344703T1 (en) | 2006-11-15 |
EP1600228A1 (en) | 2005-11-30 |
AT501482A1 (en) | 2006-09-15 |
AT501482B1 (en) | 2006-09-15 |
US20050272543A1 (en) | 2005-12-08 |
AT501482B8 (en) | 2007-02-15 |
ES2276385T3 (en) | 2007-06-16 |
US7678001B2 (en) | 2010-03-16 |
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