WO2008068095A1 - Method for fastening a sleeve on a shaft - Google Patents
Method for fastening a sleeve on a shaft Download PDFInfo
- Publication number
- WO2008068095A1 WO2008068095A1 PCT/EP2007/060898 EP2007060898W WO2008068095A1 WO 2008068095 A1 WO2008068095 A1 WO 2008068095A1 EP 2007060898 W EP2007060898 W EP 2007060898W WO 2008068095 A1 WO2008068095 A1 WO 2008068095A1
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- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- sleeve
- contour
- fastening
- pressed
- 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.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/005—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by expanding or crimping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/08—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque
- B62D6/10—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque characterised by means for sensing or determining torque
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
- F16D1/072—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/18—Sensors; Details or arrangements thereof
Definitions
- the invention is based on a method for fastening a sleeve on a shaft, in particular for fastening a sleeve on the input shaft and the output shaft of a torque sensor, according to the preamble of the independent claim.
- a method for fastening a sleeve on a shaft in particular for fastening a sleeve on the input shaft and the output shaft of a torque sensor, according to the preamble of the independent claim.
- Such a method is known from EP 1 510 284 A1, wherein both shaft stumps of a torque sensor operating with a torsion bar have at least one tooth-shaped or trapezoidal projecting profile on their circumference, onto each of which a coding sleeve is pressed. After being slipped onto the toothing, these sleeves are fixed to the stub shafts substantially unrotatably and are subsequently provided with a coding in order to identify the rotation of the two stub shafts.
- This method is unsuitable for the attachment of prefabricated coding rings, because the coding rings already sit on the toothing in a rotationally fixed manner after being pushed on and a fine adjustment of the coding of the two rings relative to one another is no longer possible.
- the subsequently performed in this method pressing the coding rings between each two sprockets on each stub shaft is used to secure the coding against displacement in the axial direction.
- From DE 101 26 791 Al is another method for fixing a
- Measuring device for detecting a relative moment between an input shaft and an output shaft of a steering system in which a cylindrical sheet metal ring by deforming elements in a plurality of discrete, spatially separated wells, preferably designed as holes wells, is pressed to secure the sheet metal ring on the shaft.
- a very exact positioning and adjustment of the deformation elements with respect to the holes is required because otherwise by axial deviations between the holes and the punch increased wear on the Verformwerkzeu- occurs and in addition cracking can occur in the sleeve.
- wells of this type, for example, bores can not be produced in a continuous turning process, which results in additional manufacturing costs.
- the inventive method with the features of the independent claim has over the described prior art has the advantage that the formation of an embossing as part of a negative contour on the shaft creates the possibility to move the sleeve before the final attachment to the shaft yet and to adjust exactly before the corresponding portion of the sleeve is pressed into the contour.
- the embossing is mounted in a circumferential press-in groove in the shaft, so that on the one hand the basic shape of the contour can be produced with a standard turning method and the subsequent embossing, preferably as a tooth-shaped
- the preferably tooth-shaped embossing is expediently attached to the bottom of the contour.
- An advantageous alternative in the embodiment of the contour is to provide a negative contour as a groove which widens outwardly and in the region of the bevelled or outwardly curved edges has a preferably tooth-shaped embossment, whereby the necessary Einpresstiefe the sleeve are reduced in the contour can.
- the pressing of the sleeve takes place here expediently by a plastic deformation by rolling or by impressions with one or more punches
- the shaft as a hollow shaft, as used in a torque sensor with a torsion between two stub shafts, it has proved to be useful when the contour is formed for pressing the sleeve into a bead mounted on the shaft. This ensures that sufficient wall thickness is available for the negative contour without weakening the strength of the shaft in this area.
- the figure shows a section through a divided to form a torque sensor hollow shaft, each with a mounted on an input shaft and an output shaft sleeve.
- 10 denotes a torque sensor, as it is integrated, for example, for detecting the steering torque in the steering column of a motor vehicle.
- the shaft is divided into an input shaft 12 and an output shaft 14, between which a sensor assembly 16 with a magnetic transmitter unit 18 and a Fluxringech 20 is arranged to detect the change in the magnetic flux through a sensor 19 at a rotation of the two shaft parts against each other.
- a bearing 22 is inserted between the input shaft 12 and the output shaft 14 and a jaw clutch 24, which limits the angle of rotation between the two shaft parts.
- the torque applied to the input shaft 12 is transmitted until reaching the limited by the dog clutch 24 twist angle of, for example, by + / "6 ° by a torsion bar 26 which is fixedly connected to both shaft parts 12 and 14.
- a torsion bar 26 which is fixedly connected to both shaft parts 12 and 14.
- the inventive method is used for permanent and spatially exact attachment of a sleeve 28 on the input shaft 12, or a sleeve 30 on the output shaft 14.
- the shafts 12 and 14 each have in the region of the sleeves 28 and 30, a negative contour in the form of circumferential Einpressnuten 32nd , 34, in each of which additionally an embossment 36, preferably in the form of a tooth-shaped knurling is incorporated.
- An embossing can optionally also be subsequently formed in the grooves 32, 34 or in another negative contour by increased press-in pressure of a punch 38, wherein the contour 32 and / or 34 in particular at the bottom during the pressing of the sleeve 28, 30 is deformed.
- the embossment may optionally be in the form of a sawtooth-like, rib-shaped or differently shaped deformation at the bottom of the press-fit groove, as shown at reference numeral 36a on the input shaft 12.
- an embossing 36b may also be provided in the region of the lateral groove edges, as shown by way of example on the output shaft 14.
- the embossment 36b at the groove edges requires a smaller press depth of the sleeves 28 or 30 than the embossment 36a at the groove bottom.
- the edges of the Einpressnuten 32 and 34 may be designed trapezoidal or spherical. Crowned groove edges are shown in dashed lines in the press-in 32 at the reference numeral 33.
- the pressing of the sleeves 28, 30 in the grooves 32, 34 takes place in the embodiment by plastic deformation of the sleeves in the groove direction by means of a roller-like punch 38, which in a continuous operation, the sleeves 28, 30 along the circumference of the shafts 12 and 14 in the grooves Pressed 32 and 34 and thereby permanently deformed.
- a roller-like punch 38 which in a continuous operation, the sleeves 28, 30 along the circumference of the shafts 12 and 14 in the grooves Pressed 32 and 34 and thereby permanently deformed.
- one or more radial dies 38 may be used to press in the sleeves 28,30.
- a bead 40, 42 is applied to the shafts 12 and 14 in the region of the grooves 32 and 34, which is formed integrally with the shafts 12 and 14 is.
- the negative design of the contours with the grooves 32 and 34 and the embossments 36 makes it possible for the sleeves 28 and 30 after being pushed onto the shafts 12 and 14 to be exactly aligned with each other in a predetermined position as a zero position before the final fixation of the sleeves 28 and 30 on the shaft parts 12 and 14 takes place. In this way, on the one hand an adjustment of the sleeves after pre-assembly is made possible and on the other hand ensured by the design of Einpressnuten 32 and 34 with the embossments 36 a secure locking of the sleeves 28 and 30 both in the circumferential direction and in the axial direction of the arrangement.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering Controls (AREA)
Abstract
Description
Beschreibung description
Titeltitle
Verfahren zur Befestigung einer Hülse auf einer WelleMethod for fixing a sleeve on a shaft
Stand der TechnikState of the art
Die Erfindung geht aus von einem Verfahren zur Befestigung einer Hülse auf einer Welle, insbesondere zur Befestigung je einer Hülse auf der Eingangswelle und der Ausgangswelle eines Drehmomentsensors, nach der Gattung des unab- hängigen Anspruchs. Ein derartiges Verfahren ist aus der EP 1 510 284 Al bekannt, wobei beide Wellenstümpfe eines mit einem Torsionsstab arbeitenden Drehmomentsensors an ihrem Umfang jeweils mindestens ein zahnförmig oder trapezförmig vorspringendes Profil aufweisen, auf das je eine Kodierhülse aufge- presst wird. Diese Hülsen sitzen nach dem Aufschieben auf die Verzahnung im Wesentlichen unverdrehbar auf den Wellenstümpfen fest und werden zur Kennt- lichmachung der Verdrehung der beiden Wellenstümpfe gegeneinander nachträglich mit einer Kodierung versehen. Für die Befestigung vorgefertigter Kodierringe ist dieses Verfahren ungeeignet, weil die Kodierringe nach dem Aufschieben bereits drehfest auf der Verzahnung sitzen und eine Feinjustierung der Ko- dierung der beiden Ringe zueinander nicht mehr möglich ist. Das bei diesem Verfahren nachträglich durchgeführte Einpressen der Kodierringe zwischen jeweils zwei Zahnkränzen auf jedem Wellenstumpf dient zur Sicherung der Kodierringe gegen eine Verschiebung in axialer Richtung.The invention is based on a method for fastening a sleeve on a shaft, in particular for fastening a sleeve on the input shaft and the output shaft of a torque sensor, according to the preamble of the independent claim. Such a method is known from EP 1 510 284 A1, wherein both shaft stumps of a torque sensor operating with a torsion bar have at least one tooth-shaped or trapezoidal projecting profile on their circumference, onto each of which a coding sleeve is pressed. After being slipped onto the toothing, these sleeves are fixed to the stub shafts substantially unrotatably and are subsequently provided with a coding in order to identify the rotation of the two stub shafts. This method is unsuitable for the attachment of prefabricated coding rings, because the coding rings already sit on the toothing in a rotationally fixed manner after being pushed on and a fine adjustment of the coding of the two rings relative to one another is no longer possible. The subsequently performed in this method pressing the coding rings between each two sprockets on each stub shaft is used to secure the coding against displacement in the axial direction.
Aus der DE 101 26 791 Al ist ein weiteres Verfahren zur Befestigung einerFrom DE 101 26 791 Al is another method for fixing a
Messeinrichtung für die Erfassung eines Relativmomentes zwischen einer Eingangswelle und einer Ausgangswelle eines Lenksystems bekannt, bei dem ein zylindrischer Blechring durch Verformelemente in mehrere diskrete, räumlich voneinander getrennte, vorzugsweise als Bohrungen ausgeführte Vertiefungen, eingepresst wird zur Sicherung des Blechrings auf der Welle. Hierbei ist eine sehr exakte Positionierung und Justierung der Verformelemente gegenüber den Bohrungen erforderlich, da andernfalls durch Achsabweichungen zwischen den Bohrungen und dem Stempel ein erhöhter Verschleiß an den Verformwerkzeu- gen auftritt und zusätzlich Rissbildungen in der Hülse auftreten können. Außerdem können Vertiefungen dieser Art, zum Beispiel Bohrungen, nicht in einem kontinuierlichen Drehverfahren hergestellt werden, wodurch zusätzliche Fertigungskosten entstehen.Measuring device for detecting a relative moment between an input shaft and an output shaft of a steering system is known in which a cylindrical sheet metal ring by deforming elements in a plurality of discrete, spatially separated wells, preferably designed as holes wells, is pressed to secure the sheet metal ring on the shaft. In this case, a very exact positioning and adjustment of the deformation elements with respect to the holes is required because otherwise by axial deviations between the holes and the punch increased wear on the Verformwerkzeu- occurs and in addition cracking can occur in the sleeve. Moreover, wells of this type, for example, bores, can not be produced in a continuous turning process, which results in additional manufacturing costs.
Offenbarung der ErfindungDisclosure of the invention
Das erfindungsgemäße Verfahren mit den Merkmalen des unabhängigen Anspruchs hat gegenüber dem geschilderten Stand der Technik den Vorteil, dass durch die Ausbildung einer Prägung als Teil einer negativen Kontur an der Welle die Möglichkeit geschaffen wird, die Hülse vor der endgültigen Befestigung auf der Welle noch zu verschieben und exakt zu justieren, bevor der zugehörige Abschnitt der Hülse in die Kontur eingepresst wird. Vorzugsweise ist hierbei die Prägung in einer umlaufenden Einpressnut in der Welle angebracht, so dass einerseits die Grundform der Kontur mit einem Standard- Drehverfahren hergestellt werden kann und die anschließende Prägung, vorzugsweise als zahnförmigeThe inventive method with the features of the independent claim has over the described prior art has the advantage that the formation of an embossing as part of a negative contour on the shaft creates the possibility to move the sleeve before the final attachment to the shaft yet and to adjust exactly before the corresponding portion of the sleeve is pressed into the contour. Preferably, in this case the embossing is mounted in a circumferential press-in groove in the shaft, so that on the one hand the basic shape of the contour can be produced with a standard turning method and the subsequent embossing, preferably as a tooth-shaped
Rändelung, in der Nut erfolgt. Das beim Prägen nach außen verdrängte Material ragt dabei nicht über die Oberfläche der Welle hinaus, so dass die Hülse auf der Welle bis zur abschließenden Einpressung in die Kontur verschiebbar und justierbar bleibt. Wenn hierbei der Einpressvorgang bis zum Boden der Kontur er- folgt, so wird die vorzugsweise zahnförmige Prägung zweckmäßigerweise am Boden der Kontur angebracht. Ein vorteilhafte Alternative bei der Ausgestaltung der Kontur besteht darin, als negative Kontur eine Nut vorzusehen, welche sich nach außen erweitert und im Bereich der abgeschrägten oder nach außen gekrümmten Ränder eine vorzugsweise zahnförmige Prägung aufweist, wodurch die notwendige Einpresstiefe der Hülse in die Kontur verringert werden kann. Das Einpressen der Hülse erfolgt hierbei zweckmäßigerweise durch eine plastische Verformung durch Rollen oder durch Eindrücken mit einem oder mehreren Stempeln Insbesondere bei einer Ausgestaltung der Welle als Hohlwelle, wie sie bei einem Drehmomentsensor mit einem Torsionselement zwischen zwei Wellenstümpfen verwendet wird, hat es sich als zweckmäßig erwiesen, wenn die Kontur zum Einpressen der Hülse in einen auf der Welle angebrachten Wulst eingeformt wird. Hierdurch wird sichergestellt, dass eine ausreichende Wandstärke für die negative Kontur zur Verfügung steht, ohne dass die Festigkeit der Welle in diesem Bereich geschwächt wird.Knurling, done in the groove. The material displaced outwards during embossing does not protrude beyond the surface of the shaft, so that the sleeve remains displaceable and adjustable on the shaft until the final press-fit into the contour. If in this case the pressing-in operation takes place up to the bottom of the contour, the preferably tooth-shaped embossing is expediently attached to the bottom of the contour. An advantageous alternative in the embodiment of the contour is to provide a negative contour as a groove which widens outwardly and in the region of the bevelled or outwardly curved edges has a preferably tooth-shaped embossment, whereby the necessary Einpresstiefe the sleeve are reduced in the contour can. The pressing of the sleeve takes place here expediently by a plastic deformation by rolling or by impressions with one or more punches In particular, in an embodiment of the shaft as a hollow shaft, as used in a torque sensor with a torsion between two stub shafts, it has proved to be useful when the contour is formed for pressing the sleeve into a bead mounted on the shaft. This ensures that sufficient wall thickness is available for the negative contour without weakening the strength of the shaft in this area.
Kurze Beschreibung der ZeichnungShort description of the drawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.An embodiment of the invention is illustrated in the drawing and explained in more detail in the following description.
Die Figur zeigt einen Schnitt durch eine zur Ausbildung eines Drehmomentsensors geteilte Hohlwelle mit je einer auf einer Eingangswelle und einer Ausgangswelle befestigten Hülse.The figure shows a section through a divided to form a torque sensor hollow shaft, each with a mounted on an input shaft and an output shaft sleeve.
Ausführungsform der ErfindungEmbodiment of the invention
In der Figur ist mit 10 ein Drehmomentsensor bezeichnet, wie er beispielsweise zur Erfassung des Lenkmomentes in die Lenksäule eines Kraftfahrzeuges integriert ist. Hierzu ist die Welle in eine Eingangswelle 12 und eine Ausgangswelle 14 unterteilt, zwischen denen eine Sensoranordnung 16 mit einer magnetischen Gebereinheit 18 und einer Fluxringeinheit 20 angeordnet ist zur Erfassung der Veränderung des magnetischen Flusses durch einen Sensor 19 bei einer Verdrehung der beiden Wellenteile gegeneinander. Weiterhin ist zwischen die Eingangswelle 12 und der Ausgangswelle 14 ein Lager 22 eingefügt sowie eine Klauenkupplung 24, welche den Verdrehwinkel zwischen den beiden Wellenteilen begrenzt. Das an der Eingangswelle 12 anliegende Drehmoment wird dabei bis zum Erreichen des durch die Klauenkupplung 24 begrenzten Verdrehwinkels von beispielsweise von +/"6° durch einen Torsionsstab 26 übertragen, welcher mit beiden Wellenteilen 12 und 14 fest verbunden ist. Eine derartige Anordnung ist grundsätzlich bekannt und beispielsweise in der Patentanmeldung DE 10 2005 011196 detailliert beschrieben, auf welche hinsichtlich der Ausführungsform des Anmeldungsgegenstandes Bezug genommen wird.In the figure, 10 denotes a torque sensor, as it is integrated, for example, for detecting the steering torque in the steering column of a motor vehicle. For this purpose, the shaft is divided into an input shaft 12 and an output shaft 14, between which a sensor assembly 16 with a magnetic transmitter unit 18 and a Fluxringeinheit 20 is arranged to detect the change in the magnetic flux through a sensor 19 at a rotation of the two shaft parts against each other. Furthermore, a bearing 22 is inserted between the input shaft 12 and the output shaft 14 and a jaw clutch 24, which limits the angle of rotation between the two shaft parts. The torque applied to the input shaft 12 is transmitted until reaching the limited by the dog clutch 24 twist angle of, for example, by + / "6 ° by a torsion bar 26 which is fixedly connected to both shaft parts 12 and 14. Such an arrangement is basically known and described in detail, for example, in the patent application DE 10 2005 011196, to which reference is made with respect to the embodiment of the subject of the application.
Das erfindungsgemäße Verfahren dient zur dauerhaften und räumlich exakten Befestigung einer Hülse 28 auf der Eingangswelle 12, beziehungsweise einer Hülse 30 auf der Ausgangswelle 14. Die Wellen 12 und 14 weisen jeweils im Bereich der Hülsen 28 und 30 eine negative Kontur in Form von umlaufenden Einpressnuten 32, 34 auf, in die zusätzlich jeweils eine Prägung 36, vorzugsweise in Gestalt einer zahnförmigen Rändelung eingearbeitet ist. Eine Prägung kann gegebenenfalls auch nachträglich in die Nuten 32, 34 oder in eine andere negative Kontur eingeformt werden durch verstärkten Einpressdruck eines Stempels 38, wobei die Kontur 32 und/oder 34 insbesondere am Boden beim Einpressen der Hülse 28, 30 verformt wird.The inventive method is used for permanent and spatially exact attachment of a sleeve 28 on the input shaft 12, or a sleeve 30 on the output shaft 14. The shafts 12 and 14 each have in the region of the sleeves 28 and 30, a negative contour in the form of circumferential Einpressnuten 32nd , 34, in each of which additionally an embossment 36, preferably in the form of a tooth-shaped knurling is incorporated. An embossing can optionally also be subsequently formed in the grooves 32, 34 or in another negative contour by increased press-in pressure of a punch 38, wherein the contour 32 and / or 34 in particular at the bottom during the pressing of the sleeve 28, 30 is deformed.
Die Prägung kann wahlweise als sägezahnartige, rippenförmige oder andersartig gestaltete Verformung am Boden der Einpressnut verlaufen, wie dies bei der Bezugsziffer 36a an der Eingangswelle 12 dargestellt ist. Es kann jedoch zusätzlich oder alternativ auch eine Prägung 36b im Bereich der seitlichen Nutränder vor- gesehen werden, wie dies beispielhaft an der Ausgangswelle 14 dargestellt ist. Die Prägung 36b an den Nuträndern erfordert eine geringere Einpresstiefe der Hülsen 28 oder 30 als die Prägung 36a am Nutgrund. Die Ränder der Einpressnuten 32 und 34 können trapezförmig oder ballig gestaltet sein. Ballige Nutränder sind in der Einpressnut 32 bei der Bezugsziffer 33 gestrichelt dargestellt.The embossment may optionally be in the form of a sawtooth-like, rib-shaped or differently shaped deformation at the bottom of the press-fit groove, as shown at reference numeral 36a on the input shaft 12. However, additionally or alternatively, an embossing 36b may also be provided in the region of the lateral groove edges, as shown by way of example on the output shaft 14. The embossment 36b at the groove edges requires a smaller press depth of the sleeves 28 or 30 than the embossment 36a at the groove bottom. The edges of the Einpressnuten 32 and 34 may be designed trapezoidal or spherical. Crowned groove edges are shown in dashed lines in the press-in 32 at the reference numeral 33.
Das Einpressen der Hülsen 28, 30 in die Nuten 32, 34 erfolgt beim Ausführungsbeispiel durch plastische Verformung der Hülsen in Nutrichtung mittels eines rollenartigen Stempels 38, welcher in einem kontinuierlichen Arbeitsgang die Hülsen 28, 30 entlang des Umfangs der Wellen 12 und 14 in die Nuten 32 und 34 einpresst und hierbei bleibend verformt. Alternativ können ein oder mehrere, radial arbeitende Stempel 38 zum Einpressen der Hülsen 28, 30 verwendet werden. Um eine Schwächung der Eingangswelle 12 und der Ausgangswelle 14 im Bereich der Einpressnuten 32 und 34 zu vermeiden ist auf die Wellen 12 und 14 im Bereich der Nuten 32 und 34 jeweils ein Wulst 40, 42 aufgebracht, welcher einteilig mit den Wellen 12 und 14 ausgebildet ist. Die negative Gestaltung der Kon- turen mit den Nuten 32 und 34 sowie den Prägungen 36 ermöglicht es, dass die Hülsen 28 und 30 nach dem Aufschieben auf die Wellen 12 und 14 noch in eine vorgegebene Lage als Nullstellung exakt zueinander ausgerichtet werden können, bevor die endgültige Fixierung der Hülsen 28 und 30 auf den Wellenteilen 12 und 14 erfolgt. Auf diese Weise wird einerseits noch eine Justierung der Hül- sen nach der Vormontage ermöglicht und andererseits durch die Gestaltung der Einpressnuten 32 und 34 mit den Prägungen 36 eine sichere Arretierung der Hülsen 28 und 30 sowohl in Umfangsrichtung wie auch in Achsrichtung der Anordnung gewährleistet. The pressing of the sleeves 28, 30 in the grooves 32, 34 takes place in the embodiment by plastic deformation of the sleeves in the groove direction by means of a roller-like punch 38, which in a continuous operation, the sleeves 28, 30 along the circumference of the shafts 12 and 14 in the grooves Pressed 32 and 34 and thereby permanently deformed. Alternatively, one or more radial dies 38 may be used to press in the sleeves 28,30. In order to avoid a weakening of the input shaft 12 and the output shaft 14 in the region of the press-in grooves 32 and 34, a bead 40, 42 is applied to the shafts 12 and 14 in the region of the grooves 32 and 34, which is formed integrally with the shafts 12 and 14 is. The negative design of the contours with the grooves 32 and 34 and the embossments 36 makes it possible for the sleeves 28 and 30 after being pushed onto the shafts 12 and 14 to be exactly aligned with each other in a predetermined position as a zero position before the final fixation of the sleeves 28 and 30 on the shaft parts 12 and 14 takes place. In this way, on the one hand an adjustment of the sleeves after pre-assembly is made possible and on the other hand ensured by the design of Einpressnuten 32 and 34 with the embossments 36 a secure locking of the sleeves 28 and 30 both in the circumferential direction and in the axial direction of the arrangement.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610057022 DE102006057022A1 (en) | 2006-12-04 | 2006-12-04 | Sleeve fastening method for torque sensor, involves forming stamped indentation as part of negative contour on input and output shafts, and pressing sleeve into negative contour for locking |
| DE102006057022.7 | 2006-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008068095A1 true WO2008068095A1 (en) | 2008-06-12 |
Family
ID=38824943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2007/060898 Ceased WO2008068095A1 (en) | 2006-12-04 | 2007-10-12 | Method for fastening a sleeve on a shaft |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102006057022A1 (en) |
| WO (1) | WO2008068095A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009106390A1 (en) * | 2008-02-27 | 2009-09-03 | Robert Bosch Gmbh | Device and method for attaching a sleeve to a shaft |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011017150A1 (en) | 2011-04-15 | 2012-10-18 | Volkswagen Aktiengesellschaft | Shaft-hub-connection for steering column of motor vehicle steering, has shaft having coupling portion and hub with another coupling portion, where coupling portions engage into each other |
| DE102011101482B4 (en) | 2011-05-13 | 2017-05-11 | Thyssenkrupp Presta Aktiengesellschaft | Sensor arrangement for a rotatable shaft |
| DE102017220606A1 (en) | 2017-11-17 | 2019-05-23 | Volkswagen Aktiengesellschaft | Steering column for a motor vehicle |
| DE102017222999B4 (en) * | 2017-12-18 | 2021-10-21 | Robert Bosch Gmbh | Sensor device for a steering system of a vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3743334A (en) * | 1969-05-30 | 1973-07-03 | Adelman R Witsenhausen | Interlocking assembly and method of making same |
| DE4003273A1 (en) * | 1990-02-03 | 1991-08-08 | Vdo Schindling | Two=part housing, e.g. for engine idling air demand controller - has collar forming shape-locking joint with cross-matched region of second part |
| US5706572A (en) * | 1991-07-29 | 1998-01-13 | Magnetoelastic Devices, Inc. | Method for producing a circularly magnetized non-contact torque sensor |
| DE19908459A1 (en) * | 1998-02-26 | 1999-09-02 | Nsk Ltd | Torque sensor with compensation for differing expansion between components |
| DE19853798C1 (en) * | 1998-11-21 | 2000-09-21 | Bayerische Motoren Werke Ag | Connection between two shafts is a sleeve pushed over the teeth or splines at the shaft ends in a press fit with malleable distortion to mold round the teeth/splines in a keyed and positive fit |
| DE10224344A1 (en) * | 2001-06-01 | 2003-01-09 | Zf Lenksysteme Gmbh | Manufacture of assembly of components for electric power-assisted steering, by pre-positioning and compressing input shaft with torsion bar, before setting electrical center |
| DE10126791A1 (en) * | 2001-06-01 | 2003-01-09 | Zf Lenksysteme Gmbh | Method for fastening a torque measuring device |
| EP1510284A1 (en) * | 2003-08-28 | 2005-03-02 | Etablissements Frank et Pignard | Shaft with an optical code ring and method for its manufacture |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005010932A1 (en) * | 2005-03-09 | 2006-09-14 | Austriamicrosystems Ag | Torque detection device for e.g. motor vehicle, has carrier arrangement including two outer transmitter segments that work together with central transmitter segment, and sensor attached to segments to produce differential signal |
| DE102005011196B4 (en) * | 2005-03-09 | 2024-05-08 | Robert Bosch Gmbh | Sensor arrangement for detecting a differential angle |
-
2006
- 2006-12-04 DE DE200610057022 patent/DE102006057022A1/en not_active Withdrawn
-
2007
- 2007-10-12 WO PCT/EP2007/060898 patent/WO2008068095A1/en not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3743334A (en) * | 1969-05-30 | 1973-07-03 | Adelman R Witsenhausen | Interlocking assembly and method of making same |
| DE4003273A1 (en) * | 1990-02-03 | 1991-08-08 | Vdo Schindling | Two=part housing, e.g. for engine idling air demand controller - has collar forming shape-locking joint with cross-matched region of second part |
| US5706572A (en) * | 1991-07-29 | 1998-01-13 | Magnetoelastic Devices, Inc. | Method for producing a circularly magnetized non-contact torque sensor |
| DE19908459A1 (en) * | 1998-02-26 | 1999-09-02 | Nsk Ltd | Torque sensor with compensation for differing expansion between components |
| DE19853798C1 (en) * | 1998-11-21 | 2000-09-21 | Bayerische Motoren Werke Ag | Connection between two shafts is a sleeve pushed over the teeth or splines at the shaft ends in a press fit with malleable distortion to mold round the teeth/splines in a keyed and positive fit |
| DE10224344A1 (en) * | 2001-06-01 | 2003-01-09 | Zf Lenksysteme Gmbh | Manufacture of assembly of components for electric power-assisted steering, by pre-positioning and compressing input shaft with torsion bar, before setting electrical center |
| DE10126791A1 (en) * | 2001-06-01 | 2003-01-09 | Zf Lenksysteme Gmbh | Method for fastening a torque measuring device |
| EP1510284A1 (en) * | 2003-08-28 | 2005-03-02 | Etablissements Frank et Pignard | Shaft with an optical code ring and method for its manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009106390A1 (en) * | 2008-02-27 | 2009-09-03 | Robert Bosch Gmbh | Device and method for attaching a sleeve to a shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006057022A1 (en) | 2008-06-05 |
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