EP2981678B1 - Holder device - Google Patents

Holder device Download PDF

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Publication number
EP2981678B1
EP2981678B1 EP14728136.4A EP14728136A EP2981678B1 EP 2981678 B1 EP2981678 B1 EP 2981678B1 EP 14728136 A EP14728136 A EP 14728136A EP 2981678 B1 EP2981678 B1 EP 2981678B1
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EP
European Patent Office
Prior art keywords
guide ring
support
bearing surface
holder device
rear bearing
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.)
Active
Application number
EP14728136.4A
Other languages
German (de)
French (fr)
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EP2981678A1 (en
Inventor
Klaus BLÖDEL
Peter Clement
Jens Göhler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to PL14728136T priority Critical patent/PL2981678T3/en
Publication of EP2981678A1 publication Critical patent/EP2981678A1/en
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Publication of EP2981678B1 publication Critical patent/EP2981678B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/12—Riveting machines with tools or tool parts having a movement additional to the feed movement, e.g. spin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/14—Riveting machines specially adapted for riveting specific articles, e.g. brake lining machines
    • B21J15/145—Turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector

Definitions

  • the present invention relates to a holding device for holding and positioning an outer guide ring with guide vanes fixed thereto during a riveting process for attaching an inner guide ring to the guide vanes. Furthermore, the invention relates to a riveting device in order to attach an inner guide ring to the guide vanes, which are fixed to an outer guide ring.
  • guide vanes and impellers are arranged one behind the other in the compressor and turbine stages.
  • the wheels form the moving or rotating part of the turbine system, with which a flowing fluid is either compressed or relaxed.
  • Each impeller is followed by a guide device, which defines the flow generated by the wheels defined.
  • the guide devices and wheels are alternately connected in series.
  • a guide device in a turbine consists of an outer guide ring, on the inside of which a plurality of guide vanes is arranged in a defined manner in the circumferential direction.
  • This outer vane ring is installed in a so-called vane support and mounted together with this in the turbine housing.
  • the outer guide ring can be inserted into a corresponding groove in the inner surface of the guide blade carrier.
  • the vanes are riveted here with the designed as shrouds inner guide rings.
  • the inner guide rings or shrouds have for this purpose corresponding holes into which the rivets are introduced can.
  • the guide vanes may also comprise rivet pins at their front ends, with which they can be riveted by said holes in the inner guide rings.
  • Such guide devices, in which the guide vanes are fixed to an outer guide ring and riveted at its radially inner end with an inner guide ring and the shroud are, for example, from DE 10 2008 051 937 B4 known.
  • the outer guide ring with the guide vanes fixed thereto must furthermore be positioned in the guide blade carrier.
  • the riveting can be done in a so-called dummy. This is a half Schmiedering having a groove with an inner diameter which corresponds exactly to the outer diameter of the outer guide ring.
  • the positioning in the vane carrier or dummy is required because the outer diameter of the outer guide ring requires a firm support. If there is no firm support, there is a risk that the rivet connection fails qualitatively faulty or curved the outer guide ring by introduced stresses.
  • Object of the present invention is therefore to provide a holding device with which the riveting of the vanes can be done comparatively easily with an inner guide ring or shroud.
  • the invention provides a holding device for holding and positioning an outer guide ring with guide vanes fixed thereto during a riveting process for attaching an inner guide ring to the guide vanes, with a frame, a vertically adjustable on the frame arranged support plate, a positioned on the back of the support plate supporting means defining a rear abutment surface for the outer guide ring, a pair of support elements on opposite sides of the support plate in front of the rear abutment surface Support means are arranged, and a fixing device which is adapted to hold a positioned on the support plate outer guide ring during a riveting process on the rear abutment surface of the support means and in particular to press against them.
  • the inventively provided holding device initially comprises two support elements which serve the support of the outer guide ring outside the riveting operation. Further, a fixing device is provided to press a placed on the support elements outer guide ring against the rear abutment surface of the support means and so to fix. For the riveting operation, the support plate, which is placed between the support elements, for example by means of a hydraulic or mechanical actuator in the vertical direction is raised so that it lifts the outer guide ring, and so supported during the riveting operation on its underside.
  • the holding device according to the invention thus provides the possibility of riveting the inner guide ring of a guide device with the guide vanes outside the guide blade carrier or of a dummy on a riveting device.
  • the support plate is associated with a locking device to fix the support plate in a predetermined vertical position.
  • a locking device can be dispensed with if the adjusting device, via which the support plate is movable in the vertical direction, is designed such that it securely holds the support plate in a raised position during the riveting operation.
  • the support means may be fixedly mounted separately from the frame. According to a preferred embodiment, however, it is fixed to the frame and optionally set against this, so that the rear contact surface defined by it occupies a fixed predetermined position relative to the frame.
  • the support means may comprise a support wall on which the rear contact surface is formed.
  • the support elements are designed as support rollers which are rotatable about axes perpendicular to the rear abutment surface.
  • the design of the support elements as a support rollers has the advantage that the outer guide ring is rotated on the support rollers and thus the respective vane to be riveted can be brought exactly to the desired position.
  • the support elements are parallel and / or perpendicular to the rear contact surface of the support means in the horizontal direction adjustable and fixed in predetermined or predetermined positions.
  • the support elements may be provided for example on a cross slide assembly.
  • the fixing device comprises a holder which is adjustably held and formed on the frame perpendicular with respect to the rear abutment surface of the support means and formed around an outer guide ring positioned on the support plate in the extension region of the support plate on the back To hold contact surface and in particular to press against them.
  • the holder is used to fix the outer guide ring during the riveting 90 ° to the direction of force of the riveting in the area in which the outer guide ring rests on the support plate.
  • the outer guide ring is supported by the support plate on its underside and securely fixed between the rear abutment surface and the retainer in that area in which the riveting forces acting on the outer guide ring, so that the riveting forces are optimally introduced into the outer guide ring and thus deformations or undesirable loads on the outer guide ring are avoided.
  • the fixing means may further comprise retaining members which are formed and positioned or positionable to retain and in particular against an outer guide ring positioned on the platen at positions spaced from the platen against the rear support surface of the support means to press.
  • the holding elements are preferably designed as holding rollers, which are rotatable about axes extending parallel to the rear contact surface.
  • the holding elements or retaining rollers serve to guide the additional guide ring during the cycle between two riveting operations and the additional fixation during the riveting process.
  • the holding elements are expediently adjustable relative to the rear abutment surface parallel and / or perpendicular to this and fixed in predetermined or predeterminable positions.
  • the holding elements on the support means in particular on the rear wall of the support means, be mounted horizontally adjustable. By adjusting the holding elements can be positioned according to the size of the outer guide ring respectively.
  • positioning elements can be adjustably mounted on the support device in the horizontal direction in order to support an outer guide ring positioned on the support plate on its outer circumference and / or on its inner circumference and thus position it in the lateral direction.
  • a holding device can be used in a riveting device which has a riveting unit, in particular a wobble riveting unit with a pressing tool which is positioned above the support plate.
  • the wobble riveting unit is operable to move the pressing tool vertically toward the platen to make a rivet connection between a vane fixed to an outer guide ring positioned on the platen and an inner guide ring.
  • FIGS. 1 and 2 a riveting device according to the present invention is shown.
  • This serves for producing a guide device for a turbine, the guide vanes 1, which are fixed to the inner periphery of an outer guide ring 2 and project radially inwardly from this - as in FIG. 3 is shown, at their radially inner ends with an inner guide ring 3 - also called shroud - to connect, namely to rivet.
  • the inner guide ring 3 as in FIG. 4 can be seen, corresponding holes 3a, which of the radially inner Ends of the guide vanes 3, which are formed as rivet 1 a, are penetrated.
  • the riveting device comprises a holding device 4 for holding and positioning the outer guide ring 2 with the guide vanes 1 fixed thereto during the riveting process for attaching the inner guide ring 3 to the guide vanes 1, and a wobble riveting unit 5.
  • the holding device 4 has a frame 6 and a Platen 7, which is adjustable to the frame by means of a hydraulic or mechanical adjusting device, not shown in the vertical direction.
  • a support device 8 is mounted at the back of the frame 6. This essentially comprises a rear wall 8a, which defines on its front side a vertical abutment surface, and a plurality of fastening struts 8b, via which the rear wall 8a is supported on the frame 6.
  • support elements in the form of support rollers 9 are provided on opposite sides of the support plate 2, which are rotatable about axes 10 perpendicular to the rear abutment surface of the rear wall 8a.
  • the support rollers 9 are mounted on a carriage 11a and rotatably supported, which is parallel to the defined by the rear wall 8a contact surface in the horizontal direction adjustable, so that the distance of the support rollers 9 of the support plate 7 is variable.
  • the arrangement is made such that the support rollers protrude 9 in a lowered position of the support plate 7 upwards on this.
  • the support rollers 9 serve to place an outer guide ring 2 on the holding device 4.
  • the outer guide ring 2 can be moved laterally so that the lowest point is positioned immediately below the wobble riveting unit 2.
  • the carriage 11a is in turn mounted to form a cross slide assembly on a carriage 11b, which is perpendicular to the rear wall 9 adjustable.
  • the holding device 4 further comprises a fixing device 12, which is formed on the Auflagerollen 9 or positioned on the support plate 7 outer guide ring 2 on the contact surface of the support means 8, that is to hold on the rear wall 8a and in particular to press against them.
  • the fixing device 12 comprises a holding holder 13, which is held on the frame 6 perpendicular with respect to the contact surface of the support means 8 adjustable. The arrangement is such that the retainer 13 can be moved to fix a positioned on the support rollers 9 and the support plate 7 outer guide ring 2 to the outer guide ring 2 in its underlying peripheral region, in which the outer guide ring 2 with the support plate 7 comes into contact to press against the contact surface of the rear wall 8a.
  • the fixing device 12 comprises holding elements 14, which are fixed at a distance from the support plate 7 on the rear wall 8a of the support means 8 in order to hold an outer guide ring 2 on the rear wall 8a.
  • the holding elements are designed as holding rollers 14 which are rotatable about axes 15 extending parallel to the contact surface of the rear wall 8a.
  • the support rollers 14 are mounted on the rear wall 8a of the support means 8 and held horizontally adjustable at this.
  • corresponding guide grooves 16 are formed in the front side of the rear wall 8a.
  • the rear wall positioning elements 17 are mounted, which serve to support an outer guide ring 2 at its outer periphery and / or on its inner circumference and so to position in the lateral direction.
  • the positioning elements are designed as positioning rollers 17 which are rotatable about axes 18 perpendicular to the plane of the contact surface.
  • the positioning rollers 17 are connected via corresponding fastening arms 19 with the rear wall 8a and held there in horizontal guide grooves 20 movable so that they can be adjusted according to the size of the outer guide ring 2 inwards or outwards.
  • the wobble riveting unit 5 is mounted on the frame 6 of the holding device 4 in the illustrated embodiment. It includes a pressing tool above the platen wherein the wobble riveting unit is operable to move the pressing tool vertically in the direction of the support plate 7 and thus a rivet connection between an inner guide ring 3 and a stator 1, which is fixed to an outer guide ring 2 positioned on the support plate 7, manufacture.
  • an outer guide ring 2 with guide vanes 1 provided thereon is positioned on the support rollers 9 of the holding device 4. Subsequently, the support rollers 9 are positioned by adjusting the carriages 11a, 11b so that the axis of the rivet pin of a guide blade 1 to be riveted is approximately coaxial with the adjustment axis of the pressing tool. In this case, the outer guide ring 2 is pressed by the retaining bracket 13 and the retaining elements 14 of the fixing device 12 against the contact surface of the rear wall 8a. Further, the positioning rollers 17 are positioned on the inner periphery of the outer guide ring 2 to stabilize it in the lateral direction.
  • the support plate 7 is slightly raised and secured in the raised position, so that the outer guide ring 2 has no contact with the support rollers 9 and is supported only by the support plate 7 itself before the tumble riveting unit 5 is actuated to the Lower press tool and so rivet the vane 1 with an attached inner guide ring 3 or shroud.
  • the support plate 7 is lowered, so that the outer guide ring 2 again comes to rest on the support rollers 9 and can be rotated by one cycle to position a further guide blade 1 opposite the pressing tool of the wobble riveting unit 4.
  • the support rollers 9, the support rollers 14 and the positioning rollers 17 thereby allow the outer guide ring 2 can be easily rotated after release of the retainer 13.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Automatic Assembly (AREA)

Description

Die vorliegende Erfindung betrifft eine Haltevorrichtung zum Halten und Positionieren eines äußeren Leitrings mit daran fixierten Leitschaufeln während eines Nietprozesses zur Anbringung eines inneren Leitrings an den Leitschaufeln. Des Weiteren betrifft die Erfindung eine Nietvorrichtung, um an den Leitschaufeln, die an einem äußeren Leitring fixiert sind, einen inneren Leitring anzubringen.The present invention relates to a holding device for holding and positioning an outer guide ring with guide vanes fixed thereto during a riveting process for attaching an inner guide ring to the guide vanes. Furthermore, the invention relates to a riveting device in order to attach an inner guide ring to the guide vanes, which are fixed to an outer guide ring.

In Turbinenanlagen sind in den Verdichter- und Turbinenstufen jeweils Leiträder und Laufräder hintereinander angeordnet. Dabei bilden die Laufräder den bewegten bzw. rotierenden Teil der Turbinenanlage, mit welchen ein strömendes Fluid entweder verdichtet oder entspannt wird. Jedem Laufrad ist eine Leitvorrichtung nachgeordnet, welche die durch die Laufräder erzeugte Strömung definiert weiterleitet. Dabei sind die Leitvorrichtungen und Laufräder abwechselnd hintereinander geschaltet.In turbine systems, guide vanes and impellers are arranged one behind the other in the compressor and turbine stages. In this case, the wheels form the moving or rotating part of the turbine system, with which a flowing fluid is either compressed or relaxed. Each impeller is followed by a guide device, which defines the flow generated by the wheels defined. The guide devices and wheels are alternately connected in series.

Eine Leitvorrichtung in einer Turbine besteht dabei aus einem äußeren Leitschaufelring, an dessen Innenseite in Umfangsrichtung eine Vielzahl von Leitschaufeln definiert angeordnet wird. Dieser äußere Leitschaufelring wird in einem sogenannten Leitschaufelträger eingebaut und zusammen mit diesem im Turbinengehäuse montiert. Beispielsweise kann der äußere Leitring in eine entsprechende Nut in der Innenfläche des Leitschaufelträgers eingesetzt werden. Üblicherweise sind auch die radial innen liegenden Enden der Leitschaufeln mit einem dort vorgesehenen inneren Leitring - auch Deckband genannt - verbunden, um den Fluidkanal gegen die Turbinenwelle abzudichten, Spaltverluste zu reduzieren und mehrere Leitschaufeln zur Beeinflussung des Schwingungsverhaltens mechanisch zu verbinden. Die Leitschaufeln werden hierbei mit den als Deckbändern ausgebildeten inneren Leitringen vernietet. Die inneren Leitringe bzw. Deckbänder besitzen hierzu entsprechende Bohrungen, in welche die Niete eingebracht werden können. Die Leitschaufeln können auch an ihren stirnseitigen Enden Nietzapfen umfassen, mit denen sie durch die genannten Bohrungen in den inneren Leitringen vernietet werden können. Derartige Leitvorrichtungen, bei denen die Leitschaufeln an einem äußeren Leitring fixiert und an ihrem radial inneren Ende mit einem inneren Leitring bzw. der Deckband vernietet sind, sind beispielsweise aus der DE 10 2008 051 937 B4 bekannt.A guide device in a turbine consists of an outer guide ring, on the inside of which a plurality of guide vanes is arranged in a defined manner in the circumferential direction. This outer vane ring is installed in a so-called vane support and mounted together with this in the turbine housing. For example, the outer guide ring can be inserted into a corresponding groove in the inner surface of the guide blade carrier. Usually, the radially inner ends of the vanes with an inner guide ring provided there - also called shroud - connected to seal the fluid channel against the turbine shaft, to reduce gap losses and mechanically connect a plurality of vanes to influence the vibration behavior. The vanes are riveted here with the designed as shrouds inner guide rings. The inner guide rings or shrouds have for this purpose corresponding holes into which the rivets are introduced can. The guide vanes may also comprise rivet pins at their front ends, with which they can be riveted by said holes in the inner guide rings. Such guide devices, in which the guide vanes are fixed to an outer guide ring and riveted at its radially inner end with an inner guide ring and the shroud are, for example, from DE 10 2008 051 937 B4 known.

Um die Leitschaufeln vernünftig und stabil vernieten zu können, muss ein 90°-Winkel zwischen der Nietachse und der Aufsatzfläche des Deckbandes, gegen die die Schaufelstirnseite gesetzt wird, vorgesehen werden.In order to rivet the vanes reasonably and stably, a 90 ° angle must be provided between the rivet axis and the top surface of the shroud against which the blade face is placed.

Für das manuelle Vernieten mittels eines pneumatischen Niethammers oder eines Nietstempels muss ferner der äußere Leitring mit den daran fixierten Leitschaufeln im Leitschaufelträger positioniert sein. Alternativ kann das Vernieten in einem sogenannten Dummy erfolgen. Hierbei handelt es sich um einen hälftigen Schmiedering, der eine Nut mit einem Innendurchmesser aufweist, der genau dem Außendurchmesser des äußeren Leitrings entspricht. Die Positionierung im Leitschaufelträger oder Dummy ist erforderlich, weil der Außendurchmesser des äußeren Leitrings eine feste Auflage benötigt. Wenn keine feste Auflage vorhanden ist, besteht die Gefahr, dass die Nietverbindung qualitativ fehlerhaft ausfällt oder sich der äußere Leitring durch eingebrachte Spannungen verkrümmt.For manual riveting by means of a pneumatic rivet hammer or a riveting punch, the outer guide ring with the guide vanes fixed thereto must furthermore be positioned in the guide blade carrier. Alternatively, the riveting can be done in a so-called dummy. This is a half Schmiedering having a groove with an inner diameter which corresponds exactly to the outer diameter of the outer guide ring. The positioning in the vane carrier or dummy is required because the outer diameter of the outer guide ring requires a firm support. If there is no firm support, there is a risk that the rivet connection fails qualitatively faulty or curved the outer guide ring by introduced stresses.

Aufgabe der vorliegenden Erfindung ist es daher, eine Haltevorrichtung zu schaffen, mit der das Vernieten der Leitschaufeln mit einem inneren Leitring bzw. Deckband vergleichsweise einfach erfolgen kann.Object of the present invention is therefore to provide a holding device with which the riveting of the vanes can be done comparatively easily with an inner guide ring or shroud.

Zur Lösung dieser Aufgabe schafft die Erfindung eine Haltevorrichtung zum Halten und Positionieren eines äußeren Leitrings mit daran fixierten Leitschaufeln während eines Nietprozesses zur Anbringung eines inneren Leitrings an den Leitschaufeln, mit einem Gestell, einer an dem Gestell in vertikaler Richtung verstellbar angeordneten Auflageplatte, einer an der Rückseite der Auflageplatte positionierten Stützeinrichtung, die eine rückseitige Anlagefläche für den äußeren Leitring definiert, einem Paar von Auflageelementen, die auf gegenüberliegenden Seiten der Auflageplatte vor der rückseitigen Anlagefläche der Stützeinrichtung angeordnet sind, und einer Fixiereinrichtung, die ausgebildet ist, einen auf der Auflageplatte positionierten äußeren Leitring während eines Nietprozesses an der rückseitigen Anlagefläche der Stützeinrichtung zu halten und insbesondere gegen diese zu drücken.To achieve this object, the invention provides a holding device for holding and positioning an outer guide ring with guide vanes fixed thereto during a riveting process for attaching an inner guide ring to the guide vanes, with a frame, a vertically adjustable on the frame arranged support plate, a positioned on the back of the support plate supporting means defining a rear abutment surface for the outer guide ring, a pair of support elements on opposite sides of the support plate in front of the rear abutment surface Support means are arranged, and a fixing device which is adapted to hold a positioned on the support plate outer guide ring during a riveting process on the rear abutment surface of the support means and in particular to press against them.

Die erfindungsgemäß vorgesehene Haltevorrichtung umfasst zunächst zwei Auflageelemente, die der Auflage des äußeren Leitrings außerhalb des Nietvorgangs dienen. Ferner ist eine Fixiereinrichtung vorgesehen, um einen auf den Auflageelementen platzierten äußeren Leitring gegen die rückseitige Anlagefläche der Stützeinrichtung zu drücken und so zu fixieren. Für den Nietvorgang wird die Auflageplatte, die zwischen den Auflageelementen platziert ist, beispielsweise mittels einer hydraulischen oder mechanischen Stellvorrichtung in vertikaler Richtung so weit angehoben, dass sie den äußeren Leitring anhebt, und so während des Nietvorgangs an seiner Unterseite abstützt. Durch die erfindungsgemäße Haltevorrichtung wird somit die Möglichkeit geschaffen, den inneren Leitring einer Leitvorrichtung mit den Leitschaufeln auch außerhalb des Leitschaufelträgers oder eines Dummys auf einer Nietvorrichtung zu vernieten.The inventively provided holding device initially comprises two support elements which serve the support of the outer guide ring outside the riveting operation. Further, a fixing device is provided to press a placed on the support elements outer guide ring against the rear abutment surface of the support means and so to fix. For the riveting operation, the support plate, which is placed between the support elements, for example by means of a hydraulic or mechanical actuator in the vertical direction is raised so that it lifts the outer guide ring, and so supported during the riveting operation on its underside. The holding device according to the invention thus provides the possibility of riveting the inner guide ring of a guide device with the guide vanes outside the guide blade carrier or of a dummy on a riveting device.

Gemäß einer Ausführungsform der Erfindung ist vorgesehen, dass der Auflageplatte eine Verriegelungseinrichtung zugeordnet ist, um die Auflageplatte in einer vorgegebenen vertikalen Position zu fixieren. Auf eine solche Verriegelungsvorrichtung kann allerdings verzichtet werden, wenn die Stelleinrichtung, über welche die Auflageplatte in vertikaler Richtung bewegbar ist, derart ausgebildet ist, dass sie die Auflageplatte in einer angehobenen Position während des Nietvorgangs sicher hält.According to one embodiment of the invention it is provided that the support plate is associated with a locking device to fix the support plate in a predetermined vertical position. However, such a locking device can be dispensed with if the adjusting device, via which the support plate is movable in the vertical direction, is designed such that it securely holds the support plate in a raised position during the riveting operation.

Die Stützeinrichtung kann separat von dem Gestell ortsfest angebracht sein. Gemäß einer bevorzugten Ausführungsform ist sie jedoch an dem Gestell fixiert und gegebenenfalls gegenüber dieser einrichtbar, so dass die durch sie definierte rückseitige Anlagefläche eine feste vorgegebene Lage gegenüber dem Gestell einnimmt. Die Stützeinrichtung kann dabei eine Stützwand aufweisen, an welcher die rückseitige Anlagefläche ausgebildet ist.The support means may be fixedly mounted separately from the frame. According to a preferred embodiment, however, it is fixed to the frame and optionally set against this, so that the rear contact surface defined by it occupies a fixed predetermined position relative to the frame. The support means may comprise a support wall on which the rear contact surface is formed.

Gemäß einer Ausführungsform der Erfindung ist vorgesehen, dass die Auflageelemente als Auflagerollen ausgebildet sind, die um senkrecht zu der rückseitigen Anlagefläche stehende Achsen drehbar sind. Die Ausbildung der Auflageelemente als Auflagerollen hat den Vorteil, dass der äußere Leitring auf den Auflagerollen gedreht und somit die jeweils zu vernietende Leitschaufel exakt in die gewünschte Position gebracht werden kann.According to one embodiment of the invention, it is provided that the support elements are designed as support rollers which are rotatable about axes perpendicular to the rear abutment surface. The design of the support elements as a support rollers has the advantage that the outer guide ring is rotated on the support rollers and thus the respective vane to be riveted can be brought exactly to the desired position.

Zweckmäßigerweise sind die Auflageelemente parallel und/oder senkrecht zu der rückseitigen Anlagefläche der Stützeinrichtung in horizontaler Richtung verstellbar und in vorgegebenen oder vorgebbaren Positionen fixierbar. Hierzu können die Auflageelemente beispielsweise an einer Kreuzschlittenanordnung vorgesehen sein. Durch diese Anordnung ist es möglich, die Auflageelemente so zu platzieren, dass die Achse einer zu vernietenden Leitschaufel exakt unterhalb der vertikalen Pressachse einer Nieteinheit platziert ist.Conveniently, the support elements are parallel and / or perpendicular to the rear contact surface of the support means in the horizontal direction adjustable and fixed in predetermined or predetermined positions. For this purpose, the support elements may be provided for example on a cross slide assembly. By this arrangement, it is possible to place the support elements so that the axis of a vane to be riveted is placed exactly below the vertical press axis of a riveting unit.

Bei einer weiteren Ausgestaltung der Erfindung ist vorgesehen, dass die Fixiereinrichtung einen Festhalter umfasst, der an dem Gestell senkrecht in Bezug auf die rückseitige Anlagefläche der Stützeinrichtung verstellbar gehalten und ausgebildet ist, um einen auf der Auflageplatte positionierten äußeren Leitring im Erstreckungsbereich der Auflageplatte an der rückseitigen Anlagefläche zu halten und insbesondere gegen diese zu drücken. Der gemäß dieser Ausgestaltung vorgesehene Festhalter dient der Fixierung des äußeren Leitrings während des Nietvorgangs 90° zur Kraftrichtung der Nietung in dem Bereich, in welchem der äußere Leitring auf der Auflageplatte aufliegt. Damit wird der äußere Leitring durch die Auflageplatte an seiner Unterseite abgestützt und zwischen der rückseitigen Anlagefläche und dem Festhalter in demjenigen Bereich, in welchem die Nietkräfte auf den äußeren Leitring einwirken, sicher fixiert, so dass die Nietkräfte optimal in den äußeren Leitring eingeleitet und damit Verformungen bzw. unerwünschte Belastungen des äußeren Leitrings vermieden werden.In a further embodiment of the invention, it is provided that the fixing device comprises a holder which is adjustably held and formed on the frame perpendicular with respect to the rear abutment surface of the support means and formed around an outer guide ring positioned on the support plate in the extension region of the support plate on the back To hold contact surface and in particular to press against them. The provided according to this embodiment, the holder is used to fix the outer guide ring during the riveting 90 ° to the direction of force of the riveting in the area in which the outer guide ring rests on the support plate. Thus, the outer guide ring is supported by the support plate on its underside and securely fixed between the rear abutment surface and the retainer in that area in which the riveting forces acting on the outer guide ring, so that the riveting forces are optimally introduced into the outer guide ring and thus deformations or undesirable loads on the outer guide ring are avoided.

Die Fixiereinrichtung kann ferner Halteelemente umfassen, die ausgebildet und positioniert oder positionierbar sind, um einen äußeren Leitring, der auf der Auflageplatte positioniert ist, an Positionen, die beabstandet von der Auflageplatte sind, an der rückseitigen Auflagefläche der Stützeinrichtung zu halten und insbesondere gegen diese zu drücken. Die Halteelemente sind bevorzugt als Halterollen ausgebildet, die um parallel zu der rückseitigen Anlagefläche verlaufende Achsen drehbar sind. Die Halteelemente bzw. Halterollen dienen der zusätzlichen Führung des Leitrings während des Taktvorgangs zwischen zwei Nietvorgängen und der zusätzlichen Fixierung während des Nietvorgangs. Die Halteelemente sind zweckmäßigerweise gegenüber der rückseitigen Anlagefläche parallel und/oder senkrecht zu dieser verstellbar und in vorgegebenen oder vorgebbaren Positionen fixierbar. Insbesondere können die Halteelemente an der Stützeinrichtung, insbesondere an der Rückwand der Stützeinrichtung, horizontal verstellbar angebracht sein. Durch die Verstellmöglichkeit können die Halteelemente jeweils entsprechend der Größe des äußeren Leitrings entsprechend positioniert werden.The fixing means may further comprise retaining members which are formed and positioned or positionable to retain and in particular against an outer guide ring positioned on the platen at positions spaced from the platen against the rear support surface of the support means to press. The holding elements are preferably designed as holding rollers, which are rotatable about axes extending parallel to the rear contact surface. The holding elements or retaining rollers serve to guide the additional guide ring during the cycle between two riveting operations and the additional fixation during the riveting process. The holding elements are expediently adjustable relative to the rear abutment surface parallel and / or perpendicular to this and fixed in predetermined or predeterminable positions. In particular, the holding elements on the support means, in particular on the rear wall of the support means, be mounted horizontally adjustable. By adjusting the holding elements can be positioned according to the size of the outer guide ring respectively.

Schließlich können an der Stützeinrichtung Positionierelemente in horizontaler Richtung verstellbar angebracht sein, um einen auf der Auflageplatte positionierten äußeren Leitring an seinem Außenumfang und/oder an seinem Innenumfang abzustützen und so in seitlicher Richtung zu positionieren.Finally, positioning elements can be adjustably mounted on the support device in the horizontal direction in order to support an outer guide ring positioned on the support plate on its outer circumference and / or on its inner circumference and thus position it in the lateral direction.

Eine erfindungsgemäße Haltevorrichtung ist in einer Nietvorrichtung einsetzbar, die eine Nieteinheit, insbesondere eine Taumel-Nieteinheit mit einem Presswerkzeug, das oberhalb der Auflageplatte positioniert ist, aufweist. Die Taumel-Nieteinheit ist betätigbar, um das Presswerkzeug vertikal in Richtung der Auflageplatte zu bewegen und so eine Nietverbindung zwischen einer Leitschaufel, die an einem auf der Auflageplatte positionierten äußeren Leitring fixiert ist, und einem inneren Leitring herzustellen.A holding device according to the invention can be used in a riveting device which has a riveting unit, in particular a wobble riveting unit with a pressing tool which is positioned above the support plate. The wobble riveting unit is operable to move the pressing tool vertically toward the platen to make a rivet connection between a vane fixed to an outer guide ring positioned on the platen and an inner guide ring.

Die Erfindung wird nachfolgend unter Bezugnahme auf die beiliegende Zeichnung anhand eines Ausführungsbeispiels erörtert. In der Zeichnung zeigt

Figur 1
eine Nietvorrichtung gemäß der vorliegenden Erfindung in schematischer perspektivischer Darstellung,
Figur 2
den in Figur 1 mit X gekennzeichneten Bereich in vergrößerter Darstellung,
Figur 3
einen äußeren Leitring mit daran gehaltenen Leitschaufeln, und
Figur 4
einen inneren Leitring, der mit den Leitschaufeln der in Figur 3 dargestellten Anordnung vernietbar ist.
The invention will be discussed below with reference to the accompanying drawings with reference to an embodiment. In the drawing shows
FIG. 1
a riveting device according to the present invention in a schematic perspective view,
FIG. 2
the in FIG. 1 marked with X area in an enlarged view,
FIG. 3
an outer guide ring with vanes held thereon, and
FIG. 4
an inner guide ring connected to the vanes of in FIG. 3 can be riveted illustrated arrangement.

In den Figuren 1 und 2 ist eine Nietvorrichtung gemäß der vorliegenden Erfindung dargestellt. Diese dient dazu, zur Herstellung einer Leitvorrichtung für eine Turbine die Leitschaufeln 1, welche an dem Innenumfang eines äußeren Leitschaufelrings 2 fixiert sind und radial nach innen von diesem abragen - wie dies in Figur 3 gezeigt ist-, an ihren radial innen liegenden Enden mit einem inneren Leitring 3 - auch Deckband genannt - zu verbinden, nämlich zu vernieten. Hierzu besitzt der innere Leitring 3, wie in Figur 4 erkennbar ist, entsprechende Bohrungen 3a, welche von den radial innen liegenden Enden der Leitschaufeln 3, welche als Nietzapfen 1a ausgebildet sind, durchgriffen werden.In the FIGS. 1 and 2 a riveting device according to the present invention is shown. This serves for producing a guide device for a turbine, the guide vanes 1, which are fixed to the inner periphery of an outer guide ring 2 and project radially inwardly from this - as in FIG. 3 is shown, at their radially inner ends with an inner guide ring 3 - also called shroud - to connect, namely to rivet. For this purpose, the inner guide ring 3, as in FIG. 4 can be seen, corresponding holes 3a, which of the radially inner Ends of the guide vanes 3, which are formed as rivet 1 a, are penetrated.

Die Nietvorrichtung umfasst eine Haltevorrichtung 4 zum Halten und Positionieren des äußeren Leitrings 2 mit den daran fixierten Leitschaufeln 1 während des Nietprozesses zur Anbringung des inneren Leitrings 3 an den Leitschaufeln 1, und eine Taumel-Nieteinheit 5. Die Haltevorrichtung 4 besitzt ein Gestell 6 und eine Auflageplatte 7, die an dem Gestell mittels einer nicht näher dargestellten hydraulischen oder mechanischen Stelleinrichtung in vertikaler Richtung verstellbar ist. An der Rückseite des Gestells 6 ist eine Stützeinrichtung 8 montiert. Diese umfasst im Wesentlichen eine Rückwand 8a, die an ihrer Vorderseite eine vertikale Anlagefläche definiert, und mehrere Befestigungsstreben 8b, über welche die Rückwand 8a an dem Gestell 6 abgestützt ist. An der Vorderseite der Rückwand 8b sind auf gegenüberliegenden Seiten der Auflageplatte 2 Auflageelemente in der Form von Auflagerollen 9 vorgesehen, die um senkrecht zu der rückseitigen Anlagefläche der Rückwand 8a stehende Achsen 10 drehbar sind. Die Auflagerollen 9 sind an einem Schlitten 11a montiert und drehbar gehalten, der parallel zu der durch die Rückwand 8a definierten Anlagefläche in horizontaler Richtung verstellbar ist, so dass der Abstand der Auflagerollen 9 von der Auflageplatte 7 veränderbar ist. Die Anordnung ist dabei so getroffen, dass die Auflagerollen 9 in einer abgesenkten Position der Auflageplatte 7 nach oben über diese vorstehen. Die Auflagerollen 9 dienen dazu, einen äußeren Leitring 2 auf der Haltevorrichtung 4 zu platzieren. Durch die Verstellung des Schlittens 11a kann der äußere Leitring 2 seitlich bewegt werden, so dass der tiefste Punkt unmittelbar unterhalb der Taumel-Nieteinheit 2 positioniert ist. Der Schlitten 11a ist wiederum unter Bildung einer Kreuzschlittenanordnung an einem Schlitten 11b montiert, der senkrecht zu der Rückwand 9 verstellbar ist.The riveting device comprises a holding device 4 for holding and positioning the outer guide ring 2 with the guide vanes 1 fixed thereto during the riveting process for attaching the inner guide ring 3 to the guide vanes 1, and a wobble riveting unit 5. The holding device 4 has a frame 6 and a Platen 7, which is adjustable to the frame by means of a hydraulic or mechanical adjusting device, not shown in the vertical direction. At the back of the frame 6, a support device 8 is mounted. This essentially comprises a rear wall 8a, which defines on its front side a vertical abutment surface, and a plurality of fastening struts 8b, via which the rear wall 8a is supported on the frame 6. On the front side of the rear wall 8b, support elements in the form of support rollers 9 are provided on opposite sides of the support plate 2, which are rotatable about axes 10 perpendicular to the rear abutment surface of the rear wall 8a. The support rollers 9 are mounted on a carriage 11a and rotatably supported, which is parallel to the defined by the rear wall 8a contact surface in the horizontal direction adjustable, so that the distance of the support rollers 9 of the support plate 7 is variable. The arrangement is made such that the support rollers protrude 9 in a lowered position of the support plate 7 upwards on this. The support rollers 9 serve to place an outer guide ring 2 on the holding device 4. By the adjustment of the carriage 11 a, the outer guide ring 2 can be moved laterally so that the lowest point is positioned immediately below the wobble riveting unit 2. The carriage 11a is in turn mounted to form a cross slide assembly on a carriage 11b, which is perpendicular to the rear wall 9 adjustable.

Die Haltevorrichtung 4 umfasst ferner eine Fixiereinrichtung 12, die ausgebildet ist, einen auf den Auflagerollen 9 oder auf der Auflageplatte 7 positionierten äußeren Leitring 2 an der Anlagefläche der Stützeinrichtung 8, d.h. an der Rückwand 8a zu halten und insbesondere gegen diese zu drücken. Die Fixiereinrichtung 12 umfasst einen Festhalter 13, der an dem Gestell 6 senkrecht in Bezug auf die Anlagefläche der Stützeinrichtung 8 verstellbar gehalten ist. Die Anordnung ist so getroffen, dass der Festhalter 13 zur Fixierung eines auf den Auflagerollen 9 bzw. der Auflageplatte 7 positionierten äußeren Leitrings 2 verfahren werden kann, um den äußeren Leitring 2 in seinem unten liegenden Umfangsbereich, in welchem der äußere Leitring 2 mit der Auflageplatte 7 in Kontakt kommt, gegen die Anlagefläche der Rückwand 8a zu drücken.The holding device 4 further comprises a fixing device 12, which is formed on the Auflagerollen 9 or positioned on the support plate 7 outer guide ring 2 on the contact surface of the support means 8, that is to hold on the rear wall 8a and in particular to press against them. The fixing device 12 comprises a holding holder 13, which is held on the frame 6 perpendicular with respect to the contact surface of the support means 8 adjustable. The arrangement is such that the retainer 13 can be moved to fix a positioned on the support rollers 9 and the support plate 7 outer guide ring 2 to the outer guide ring 2 in its underlying peripheral region, in which the outer guide ring 2 with the support plate 7 comes into contact to press against the contact surface of the rear wall 8a.

Ferner umfasst die Fixiereinrichtung 12 Halteelemente 14, die beabstandet von der Auflageplatte 7 an der Rückwand 8a der Stützeinrichtung 8 fixiert sind, um einen äußeren Leitring 2 an der Rückwand 8a zu halten. Die Halteelemente sind als Halterollen 14 ausgebildet, die um parallel zu der Anlagefläche der Rückwand 8a verlaufende Achsen 15 drehbar sind. Wie in der Zeichnung erkennbar ist, sind die Halterollen 14 an der Rückwand 8a der Stützeinrichtung 8 angebracht und an dieser horizontal verstellbar gehalten. Hierzu sind in der Vorderseite der Rückwand 8a entsprechende Führungsnuten 16 ausgebildet. Schließlich sind an der Rückwand Positionierelemente 17 angebracht, die dazu dienen, einen äußeren Leitring 2 an seinem Außenumfang und/oder an seinem Innenumfang abzustützen und so in seitlicher Richtung zu positionieren. Die Positionierelemente sind als Positionierrollen 17 ausgebildet, die um senkrecht zu der Ebene der Anlagefläche stehende Achsen 18 drehbar sind. Die Positionierrollen 17 sind über entsprechende Befestigungsarme 19 mit der Rückwand 8a verbunden und dort in horizontalen Führungsnuten 20 bewegbar gehalten, so dass sie entsprechend der Größe des äußeren Leitrings 2 nach innen oder außen verstellt werden können.Furthermore, the fixing device 12 comprises holding elements 14, which are fixed at a distance from the support plate 7 on the rear wall 8a of the support means 8 in order to hold an outer guide ring 2 on the rear wall 8a. The holding elements are designed as holding rollers 14 which are rotatable about axes 15 extending parallel to the contact surface of the rear wall 8a. As can be seen in the drawing, the support rollers 14 are mounted on the rear wall 8a of the support means 8 and held horizontally adjustable at this. For this purpose, corresponding guide grooves 16 are formed in the front side of the rear wall 8a. Finally, on the rear wall positioning elements 17 are mounted, which serve to support an outer guide ring 2 at its outer periphery and / or on its inner circumference and so to position in the lateral direction. The positioning elements are designed as positioning rollers 17 which are rotatable about axes 18 perpendicular to the plane of the contact surface. The positioning rollers 17 are connected via corresponding fastening arms 19 with the rear wall 8a and held there in horizontal guide grooves 20 movable so that they can be adjusted according to the size of the outer guide ring 2 inwards or outwards.

Die Taumel-Nieteinheit 5 ist in dem dargestellten Ausführungsbeispiel an dem Gestell 6 der Haltevorrichtung 4 montiert. Sie umfasst ein Presswerkzeug, das oberhalb der Auflageplatte positioniert ist, wobei die Taumel-Nieteinheit betätigbar ist, um das Presswerkzeug vertikal in Richtung der Auflageplatte 7 zu bewegen und so eine Nietverbindung zwischen einem inneren Leitring 3 und einer Leitschaufel 1, die an einem auf der Auflageplatte 7 positionierten äußeren Leitring 2 fixiert ist, herzustellen.The wobble riveting unit 5 is mounted on the frame 6 of the holding device 4 in the illustrated embodiment. It includes a pressing tool above the platen wherein the wobble riveting unit is operable to move the pressing tool vertically in the direction of the support plate 7 and thus a rivet connection between an inner guide ring 3 and a stator 1, which is fixed to an outer guide ring 2 positioned on the support plate 7, manufacture.

Im Betrieb wird ein äußerer Leitring 2 mit daran vorgesehenen Leitschaufeln 1 auf den Auflagerollen 9 der Haltevorrichtung 4 positioniert. Anschließend werden die Auflagerollen 9 durch Verstellung der Schlitten 11a, 11b so positioniert, dass die Achse des Nietzapfens einer zu vernietenden Leitschaufel 1 etwa koaxial zu der Verstellachse des Presswerkzeugs liegt. Dabei wird der äußere Leitring 2 durch den Festhalter 13 und die Halteelemente 14 der Fixiereinrichtung 12 gegen die Anlagefläche der Rückwand 8a gedrückt. Des Weiteren werden die Positionierrollen 17 an dem Innenumfang bzw. Außenumfang des äußeren Leitrings 2 positioniert, um diesen in seitlicher Richtung zu stabilisieren. Anschließend wird die Auflageplatte 7 leicht angehoben und in der angehobenen Lage gesichert, so dass der äußere Leitring 2 keinen Kontakt mehr zu den Auflagerollen 9 besitzt und nur noch durch die Auflageplatte 7 selbst abgestützt wird, bevor die Taumel-Nieteinheit 5 betätigt wird, um das Presswerkzeug abzusenken und so die Leitschaufel 1 mit einem aufgesetzten inneren Leitring 3 bzw. Deckband zu vernieten. Nach der Durchführung des Nietvorgangs wird die Auflageplatte 7 abgesenkt, so dass der äußere Leitring 2 wieder auf den Auflagerollen 9 zum Liegen kommt und um eine Taktung gedreht werden kann, um eine weitere Leitschaufel 1 dem Presswerkzeug der Taumel-Nieteinheit 4 gegenüberliegend zu positionieren. Die Auflagerollen 9, die Halterollen 14 und die Positionierrollen 17 ermöglichen dabei, dass der äußere Leitring 2 nach Lösung des Festhalters 13 leicht gedreht werden kann.In operation, an outer guide ring 2 with guide vanes 1 provided thereon is positioned on the support rollers 9 of the holding device 4. Subsequently, the support rollers 9 are positioned by adjusting the carriages 11a, 11b so that the axis of the rivet pin of a guide blade 1 to be riveted is approximately coaxial with the adjustment axis of the pressing tool. In this case, the outer guide ring 2 is pressed by the retaining bracket 13 and the retaining elements 14 of the fixing device 12 against the contact surface of the rear wall 8a. Further, the positioning rollers 17 are positioned on the inner periphery of the outer guide ring 2 to stabilize it in the lateral direction. Subsequently, the support plate 7 is slightly raised and secured in the raised position, so that the outer guide ring 2 has no contact with the support rollers 9 and is supported only by the support plate 7 itself before the tumble riveting unit 5 is actuated to the Lower press tool and so rivet the vane 1 with an attached inner guide ring 3 or shroud. After performing the riveting operation, the support plate 7 is lowered, so that the outer guide ring 2 again comes to rest on the support rollers 9 and can be rotated by one cycle to position a further guide blade 1 opposite the pressing tool of the wobble riveting unit 4. The support rollers 9, the support rollers 14 and the positioning rollers 17 thereby allow the outer guide ring 2 can be easily rotated after release of the retainer 13.

Obwohl die Erfindung im Detail durch das bevorzugte Ausführungsbeispiel näher illustriert und beschrieben wurde, so ist die Erfindung nicht durch die offenbarten Beispiele eingeschränkt und andere Variationen können vom Fachmann hieraus abgeleitet werden, ohne den Schutzumfang der Erfindung gemäss den angehängten Ansprüchen zu verlassen.Although the invention has been illustrated and described in detail by the preferred embodiment, the invention is not limited by the disclosed examples and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention as defined by the appended claims.

Claims (15)

  1. Holder device (4) for holding and positioning an outer guide ring (2) with guide vanes (1) secured thereto during a riveting process for attaching an inner guide ring (3) to the guide vanes (1), having a frame (6)
    characterized by
    a table (7) that is arranged on the frame (6) such that it can be adjusted in the vertical direction,
    a support device (8) which is positioned at the rear of the table (7) and defines a rear bearing surface for the outer guide ring (2),
    a pair of rest elements which are arranged on opposite sides of the table (7) in front of the rear bearing surface of the support device (8), and
    a securing device (12) which is designed to hold, and in particular press, an outer guide ring (2), that is positioned on the table (7), against the rear bearing surface of the support device (8) during a riveting process.
  2. Holder device (4) according to Claim 1,
    characterized in that
    the table (7) is assigned an in particular mechanical or hydraulic adjustment device in order to adjust the table (7) in the vertical direction.
  3. Holder device (4) according to Claim 1 or 2,
    characterized in that
    the table (7) is assigned a locking device in order to secure the table (7) in a predefined vertical position.
  4. Holder device (4) according to one of the preceding claims,
    characterized in that
    the support device (8) is secured to the frame (6).
  5. Holder device (4) according to one of the preceding claims,
    characterized in that
    the support device (8) has a support wall (8a) which defines the rear bearing surface.
  6. Holder device (4) according to one of the preceding claims,
    characterized in that
    the rest elements are designed as rest rollers (9) which are able to rotate about axes (10) that are perpendicular to the rear bearing surface.
  7. Holder device (4) according to one of the preceding claims,
    characterized in that the rest elements (9) can be adjusted in the horizontal direction parallel and/or perpendicular to the rear bearing surface of the support device (8), and can be secured in predefined or predefinable positions.
  8. Holder device (4) according to Claim 7,
    characterized in that
    the rest elements (9) are mounted on a slide (11a, 11b) which is attached adjustably to the frame (6).
  9. Holder device (4) according to one of the preceding claims,
    characterized in that
    the securing device (12) comprises an immobilizer (13) which is held on the frame (6) such that it can be adjusted perpendicularly in relation to the rear bearing surface of the support device (8), and is designed to hold, and in particular press, an outer guide ring (2), that is positioned on the table (7), against the rear bearing surface in the region of extent of the table (7).
  10. Holder device (4) according to one of the preceding claims,
    characterized in that
    the securing device (12) comprises holding elements (14) which are designed and are or can be positioned in order to hold, and in particular press, an outer guide ring (2), that is positioned on the table in positions which are spaced apart from the table (7), against the rear bearing surface of the support device (8).
  11. Holder device (4) according to Claim 10,
    characterized in that
    the holding elements are designed as holding rollers (14) which can be rotated about axes that run parallel to the rear bearing surface.
  12. Holder device (4) according to Claim 10 or 11,
    characterized in that the holding elements (14) can be adjusted parallel and/or perpendicular to the rear bearing surface, and can be secured in predefined or predefinable positions.
  13. Holder device (4) according to one of Claims 10 to 12,
    characterized in that
    the holding elements (14) are attached to the support device (8), in particular to the rear wall (8a) of the support device (8).
  14. Holder device (4) according to one of the preceding claims,
    characterized in that
    positioning elements (17) are attached to the support device (8) so as to be adjustable in the horizontal direction, in order to support the outer circumference and/or the inner circumference of an outer guide ring (2) that is positioned on the table (7), and thus position this ring in the lateral direction.
  15. Riveting device having a holder device (4) according to one of the preceding claims and a wobble riveting unit (5) having a pressing tool that is positioned above the table (7),
    wherein the wobble riveting unit (5) can be actuated in order to move the pressing tool in the vertical direction of the table (7), and thus establish a riveted connection between a guide vane (1), which is secured to an outer guide ring (2) positioned on the table (7), and an inner guide ring (3).
EP14728136.4A 2013-05-24 2014-05-26 Holder device Active EP2981678B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14728136T PL2981678T3 (en) 2013-05-24 2014-05-26 Holder device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013209694 2013-05-24
PCT/EP2014/060828 WO2014188002A1 (en) 2013-05-24 2014-05-26 Holder device

Publications (2)

Publication Number Publication Date
EP2981678A1 EP2981678A1 (en) 2016-02-10
EP2981678B1 true EP2981678B1 (en) 2017-05-03

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EP (1) EP2981678B1 (en)
PL (1) PL2981678T3 (en)
WO (1) WO2014188002A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1027992B1 (en) * 2020-01-15 2021-08-17 Safran Aero Boosters Method and set for the selection of a blade set

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748224B1 (en) * 1996-05-02 1998-06-19 Snecma TOOLS FOR MOUNTING A TURBOMACHINE DISTRIBUTOR
US7222417B2 (en) * 2003-10-23 2007-05-29 Siemens Power Generation, Inc. Valve tooling system
DE102008051937B4 (en) 2008-10-16 2011-03-17 Siemens Aktiengesellschaft Method for producing a guide ring
US9121283B2 (en) * 2011-01-20 2015-09-01 United Technologies Corporation Assembly fixture with wedge clamps for stator vane assembly

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EP2981678A1 (en) 2016-02-10
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