EP1757381B1 - Method and device for the rotationally secure connection of a hollow axle with a part - Google Patents
Method and device for the rotationally secure connection of a hollow axle with a part Download PDFInfo
- Publication number
- EP1757381B1 EP1757381B1 EP06012082.1A EP06012082A EP1757381B1 EP 1757381 B1 EP1757381 B1 EP 1757381B1 EP 06012082 A EP06012082 A EP 06012082A EP 1757381 B1 EP1757381 B1 EP 1757381B1
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- EP
- European Patent Office
- Prior art keywords
- hollow shaft
- deformation element
- rotation
- fixed manner
- component arranged
- 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.)
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- 238000000034 method Methods 0.000 title claims description 31
- 238000005304 joining Methods 0.000 claims description 27
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- 239000000463 material Substances 0.000 claims description 9
- 238000011156 evaluation Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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- 210000000056 organ Anatomy 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods
- B21D53/845—Making camshafts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49391—Tube making or reforming
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49909—Securing cup or tube between axially extending concentric annuli
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49909—Securing cup or tube between axially extending concentric annuli
- Y10T29/49911—Securing cup or tube between axially extending concentric annuli by expanding inner annulus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
- Y10T29/4994—Radially expanding internal tube
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53996—Means to assemble or disassemble by deforming
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
Definitions
- the invention relates to a method and a device for non-rotatably connecting a hollow shaft with at least one arranged on the hollow shaft component according to the preamble of claims 1 and 10.
- the mandrel is moved, whose outer contours are formed so as to allow expansion of the hollow shaft.
- the mandrel is of cylindrical shape, wherein the outer diameter of the cylinder is greater than the inner diameter of the hollow shaft. So that the mandrel can be placed at all in the hollow shaft, it has at one end via a wedge-shaped or conical annular channel, which causes the gradual expansion of the hollow shaft on the outer diameter of the mandrel.
- the main disadvantage of such embodiments is the fact that the hollow shaft must be widened over its entire length, although the means to be fixed by means of press fit on the hollow shaft components are positioned only at very specific locations.
- the unnecessary expansion of the hollow shaft over its entire length slows down the assembly process, increased the energy requirements for the assembly process and leads to a significantly higher wear of the assembly tools.
- EP 0 650 550 a method in which the hollow shaft has a specially shaped cross-section, which has material accumulations in the region of the press fits to be formed.
- the mandrel of the joining tool is moved through the hollow shaft, material widening are made only in the areas that the Material accumulations have, so that in such a method, the press fits are realized only in the required places.
- the main disadvantage of such a method lies in the complicated production of the hollow shaft whose special inner contour must be worked out either by mechanical processing or during the manufacture of the semifinished product by complicated molds.
- the DE 25 46 802 A1 relates to a camshaft for reciprocating engines in which bearings, cams, gears and the like are pushed and fixed as individual parts on a hollow shaft.
- a rubber rod is inserted at the appropriate location in the hollow shaft and then compressed from both sides, whereby the hollow shaft is widened at this point.
- the disadvantage is, inter alia, that the hollow shaft must be accessible from both sides.
- the GB 2 069 388 A describes the fixing of a plugged tube plate on the edge of a steel tube.
- an elastomeric body through which a pull rod is guided, compressed between a top plate at the end of this rod and a collar which rests against the end of the steel tube.
- the tube end is widened, whereby the tube plate is fixed on the tube.
- expansion takes place in two steps with two different elastomeric bodies.
- the second elastomeric body has flexible supports at the ends.
- the disadvantage is, inter alia, that this method can only be used at the end of a pipe. Furthermore, expanding in two steps takes more time, which is also disadvantageous.
- the joining tool has at least a first deformation element and at least one further deformation element and the deformation elements are relatively movable, the relative movement of the deformation elements to each other at least partially widening the hollow shaft causes ensures that the joining tools realize only in the necessary places press-fit connections.
- This has the particular advantage that a cost-effective alternative to known methods is created, which ensures in particular a low wear of the joining tools.
- a structurally simple and safely operable construction of the joining tool results when, in an advantageous embodiment of the invention, the expansion of the hollow shaft is realized by widening the hollow shaft contacting a defined inner peripheral surface forming member.
- a great flexibility in the creation of the press fits according to the invention at arbitrary positions along a hollow shaft becomes possible when the first and second deformation elements in the direction of the longitudinal axis of the hollow shaft in the Inner are movable in any position and allow in these arbitrary positions an expansion of the hollow shaft.
- An advantageous embodiment of the method according to the invention results when at least one deformation member is expandable and gurdehnbar formed in such a way that a displacement of the deformation element in the radial direction is possible. This ensures that the joining tool has a compact design adapted to the inside diameter of the hollow shaft.
- the shape of the interference fit between the hollow shaft and the component is defined by the contact surface shape of the at least one deformation element at least partially contacting the inner surface of the hollow shaft.
- a structurally compact implementation of the method according to the invention results when the joining tool comprises an expansion mandrel formed by at least one first deformation element and at least one further deformation element, which is movable via guide means within a hollow shaft and wherein the deformation elements are movable relative to each other and the relative movement of the deformation elements causes an at least partial expansion of the hollow shaft to each other.
- the at least one first deformation member is designed as a conical mandrel whose largest cone diameter is smaller than the inner diameter of the hollow shaft.
- the translational movement of the first deformation member can be realized in a structurally simple manner that the first deformation member designed as a pull rod guide means is formed and the pull rod by coupling with a drive performs a translational movement within the hollow shaft.
- the expansion of the hollow shaft to create the press fit according to the invention cost and yet reliable function can be ensured that at least one further deformation member is designed as a ring segments formed by ring segments and the ring segments in the radial direction of the ring bush between a non-working position and at least a working position are movable back and forth.
- at least one further deformation member is designed as a ring segments formed by ring segments and the ring segments in the radial direction of the ring bush between a non-working position and at least a working position are movable back and forth.
- the outer diameter of the annular bush in the non-working position is smaller and in the at least one working position greater than the inner diameter of the hollow shaft.
- the translational movement of the further deformation member can be realized in a manner analogous to the first deformation member in a structurally simple manner that the further deformation element is designed as a support tube running guide and the support tube by coupling with a drive a translational movement within the Hollow shaft executes.
- the drive of the support tube is arranged at one end fixed to the frame and the other end is coupled to a support arm fixed to the support tube and wherein the support arm also receives the drive of the first deformation member, it is ensured that the relative movement of the deformation organs to each other in a structurally simple and space-saving manner is possible.
- the further deformation element is designed in an advantageous development of the invention that the inner surfaces of the ring segments of the further deformation element form a frustoconical surface whose edge tilt angle formed the edge inclination angle of the cone-shaped mandrel first deformation element corresponds.
- the deformation elements and their associated guide means are releasably connected to each other and / or arranged touching each other.
- This has the particular advantage that when using the joining tool in hollow shafts with different inner diameter always only the mandrel and possibly the ring bushing must be replaced. An exchange of the ring bushing could then even be omitted if the radial movement of the ring segments of the ring bushing is so pronounced that even with different inner diameters of the hollow shaft always the required quality of the interference fit according to the invention is achieved.
- a particularly efficient implementation of the method according to the invention and of the associated device is achieved when the invention is used in the field of producing camshafts for fixing the cams on the camshaft.
- the characteristic curves take into account the position of the deformation elements, the edge inclination angles and material characteristics of the hollow shaft and of the components, the material characteristics being the modulus of elasticity, the density, the temperature and / or the material composition of the hollow shaft and / or the Components may include.
- FIG. 1 shows a section of a camshaft 1 whose shaft main body 2 is designed as a hollow shaft 3.
- the hollow shaft 3 penetrates at any position as a cam 4 executed component 5 which is to be fixed in accordance with the invention and to be described in more detail by means of press fit on the hollow shaft 3. So that the component 5 and the hollow shaft 3 can first be easily positioned in the correct position relative to one another in a manner known per se and therefore not explained in more detail, the component 5 is penetrated by a bore 6 whose diameter is greater than the outer diameter 7 of the hollow shaft 3 , so that a so-called joining game 8 sets between the hollow shaft 3 and component 5.
- the interior 9 of the tubular hollow shaft 3 is at least partially penetrated by the joining tool 10 according to the invention, wherein the joining tool 10 in a manner to be described later a translational movement in the direction of both ends of the hollow shaft 3, as indicated by the directional arrow 11, run.
- the joining tool 10 consists of at least a first deformation member 12 and at least one further deformation member 13.
- the first deformation member 12 is formed by a conical mandrel 14, the one end designed as a pull rod 15 guide means 16 is formed. It is within the scope of the invention that the guide means 16 and the mandrel 14 are integrally formed or releasably connected to each other, for example by means not shown thread.
- the conical shape of the mandrel 14 is selected so that the largest cone diameter 17 of the mandrel 14 is smaller than the inner diameter 18 of the hollow shaft 3. Facing away from the mandrel-side end, the pull rod 15 is coupled via known coupling elements 19 to a drive 20, for example designed as an electrically or hydraulically driven linear motor, which can move the at least one first deformation element 12 in the direction of arrow 11 within the hollow shaft 3.
- the at least one further deformation member 13 is formed by a ring bushing 21, according to Fig. 2 is composed of a plurality of ring segments 22.
- the ring segments 22 are fixed in position in the circumferential direction in the circumferential direction by suitable fixing means 35, such as explosive or O-rings, on the one hand to ensure a nearly annular shape of the annular bush 21 and, moreover, to move the ring segments 22 in the radial direction according to the direction of the arrow 23 enable.
- suitable fixing means 35 such as explosive or O-rings
- the ring segments 22 are assigned to a front surface designed as a support tube 24 guide means 16.
- the support tube 24 is at one end an angled support arm 36 associated analogously to the drawbar 15, the support tube 24 is coupled via known coupling members 25 with a running, for example, as an electrically or hydraulically driven linear motor drive 26.
- a running, for example, as an electrically or hydraulically driven linear motor drive 26 In this way, the position of the annular bushing 21 can be fixed in position within the hollow shaft 3. It is within the scope of the invention that the ring segments 22 of the ring bushing 21 in a manner not shown with the support tube 24 are locked in such a way that moved at least one further deformation member 13 in the direction of arrow 11 within the hollow shaft 3 and moved to a new position can.
- the mandrel 14 and the annular bushing 21 have on both sides of their end faces on the guide means 16 described so that instead of a one-sided drive and a one-sided storage a double-sided drive and a two-sided storage of the deformation elements 12, 13 below the point of view of a precise operation of the joining tool 10 can be realized.
- the inner surfaces 27 of the ring segments 22 of the annular bushing 21 jointly form the shape of a truncated cone 28.
- the orientation of this truncated cone 28 is selected so that the likewise frusto-conical mandrel 14 of the first deforming member 12 dip into this truncated cone 28 and can emerge from this.
- a very effective relative movement between the two deformation members 12, 13 can be achieved when the edge inclination angles 29, 30 of the truncated cone 28 and the mandrel 14 are almost identical, so that the mandrel 14, the ring bushing 21 can fully enforce.
- the inventive method for realizing a press fit between the component 5 and a hollow shaft 3 comprises first in a first step, the positioning of the component 5 on the hollow shaft 3. In a conventional manner, this is done by sliding the component 5 on the hollow shaft 3 and its positional fixation in the desired connection position.
- the further deformation element 13 in the interior of the hollow shaft 3 is translationally moved into the region of the component 5 by commissioning of the further deformation element 13 associated drive 26, wherein this in the illustrated embodiment by the process of the support tube 24 associated support arm 36 according to arrow direction 37 is effected.
- the annular bushing 21 assigned to the further deformation element 13 may correspond to the width of the component 5 or may be larger or smaller than it.
- the first deformation member 12 is also moved translationally in the interior of the hollow shaft 3 in the direction of the annular bush 21 of the further deformation member 13 by commissioning the associated linear motor 20.
- the mandrel 14 of the first deformation member 12 in the annular bush 21 of the further deformation member 13 a.
- the mandrel 14 is again moved out of the annular bushing 21, so that the ring segments 22 of the annular bushing 21 assume their original non-working position 31 again.
- the deformation members 12, 13 of the joining tool 10 can be moved again within the hollow shaft, since now the different outer diameter of the deformation members 12, 13 again smaller than the inner diameter 18 of the hollow shaft.
- the deformation members 12, 13 can then be moved to the position of a further component 5 at which the method according to the invention for creating a press fit is run through again.
- an electronic control and regulation unit 34 are provided, are deposited in the characteristic curves, in dependence on the translational movement 11 of the deformation elements 12, 13, the Flankenne Trentswinkein 29, 30 and material characteristics of the hollow shaft main body 2 and the components 5, such as modulus of elasticity, density, Temperature, material composition, define.
- a position of the deformation elements 12, 13 corresponding to the desired quality of the press fit is then determined in the control and regulation unit 34 and the actuation of the drives 20, 26 is effected and monitored to achieve these positions.
- the characteristic curves form a so-called force-distance diagnostic arm.
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum drehfesten Verbinden einer Hohlwelle mit mindestens einem auf der Hohlwelle angeordnetem Bauteil nach dem Oberbegriff der Ansprüche 1 und 10.The invention relates to a method and a device for non-rotatably connecting a hollow shaft with at least one arranged on the hollow shaft component according to the preamble of
Aus dem Stand der Technik ist es gemäß der
Unter dem Gesichtspunkt der Reduzierung dieser Nachteile, insbesondere der Minimierung des Werkzeugverschleißes, offenbart die
Die
Die
Es ist deshalb Aufgabe der Erfindung eine Welle-Bauteil-Verbindung und deren Herstellung vorzuschlagen, die die beschriebenen Nachteile des Standes der Technik vermeidet und insbesondere eine kostengünstige Alternative zu bekannten Verfahren darstellt und zudem einen niedrigen Verschleiß der Fügewerkzeuge sicherstellt.It is therefore an object of the invention to propose a shaft-component connection and its manufacture, which avoids the disadvantages of the prior art described and in particular represents a cost-effective alternative to known methods and also ensures low wear of the joining tools.
Diese Aufgabe wird erfndungsgemäß durch ein Verfahren und eine Vorrichtung nach den kennzeichnenden Merkmalen der Ansprüche 1 und 10 gelöst.This object is achieved according to the invention by a method and a device according to the characterizing features of
Indem das Fügewerkzeug zumindest ein erstes Verformungsorgan und wenigstens ein weiteres Verformungsorgan aufweist und die Verformungsorgane relativ zueinander bewegbar sind, wobei die Relativbewegung der Verformungsorgane zueinander ein wenigstens teilweises Aufweiten der Hohlwelle bewirkt wird sichergestellt, dass die Fügewerkzeuge nur an den notwendigen Stellen Presssitzverbindungen realisieren. Dies hat insbesondere den Vorteil, das eine kostengünstige Alternative zu bekannten Verfahren geschaffen wird, die insbesondere einen niedrigen Verschleiß der Fügewerkzeuge sicherstellt.By the joining tool has at least a first deformation element and at least one further deformation element and the deformation elements are relatively movable, the relative movement of the deformation elements to each other at least partially widening the hollow shaft causes ensures that the joining tools realize only in the necessary places press-fit connections. This has the particular advantage that a cost-effective alternative to known methods is created, which ensures in particular a low wear of the joining tools.
Ein konstruktiv einfacher und sicher bedienbarer Aufbau des Fügewerkzeugs ergibt sich dann, wenn in vorteilhafter Ausgestaltung der Erfindung das Aufweiten der Hohlwelle durch Aufweiten des die Hohlwelle auf einer definierten Innenumfangsfläche kontaktierenden Verformungsorgans realisiert wird.A structurally simple and safely operable construction of the joining tool results when, in an advantageous embodiment of the invention, the expansion of the hollow shaft is realized by widening the hollow shaft contacting a defined inner peripheral surface forming member.
Eine große Flexibilität in der Schaffung der erfindungsgemäßen Presssitze an beliebigen Stellen entlang einer Hohlwelle wird dann möglich, wenn die ersten und zweiten Verformungsorgane in Richtung der Längsachse der Hohlwelle in deren Innerem in beliebige Positionen bewegbar sind und in diesen beliebigen Positionen ein Aufweiten der Hohlwelle ermöglichen.A great flexibility in the creation of the press fits according to the invention at arbitrary positions along a hollow shaft becomes possible when the first and second deformation elements in the direction of the longitudinal axis of the hollow shaft in the Inner are movable in any position and allow in these arbitrary positions an expansion of the hollow shaft.
Eine vorteilhafte Ausgestaltung des erfindungsgemäßen Verfahrens ergibt sich dann, wenn wenigstens ein Verformungsorgan expandier- und rückdehnbar in der Weise ausgebildet ist, dass ein Verschieben des Verformungsorgans in radialer Richtung möglich wird. Dies stellt sicher, dass das Fügewerkzeug eine an den Innendurchmesser der Hohlwelle angepasste, kompakte Bauweise aufweist.An advantageous embodiment of the method according to the invention results when at least one deformation member is expandable and rückdehnbar formed in such a way that a displacement of the deformation element in the radial direction is possible. This ensures that the joining tool has a compact design adapted to the inside diameter of the hollow shaft.
Damit die erforderliche Qualität des Presssitzes sicher bestimmt werden kann, ist es von Vorteil, wenn die Form des Presssitzes zwischen Hohlwelle und Bauteil von der Kontaktflächengestalt des wenigstens einen die Innenfläche der Hohlwelle wenigstens teilweise kontaktierenden Verformungsorgans definiert wird.So that the required quality of the press fit can be reliably determined, it is advantageous if the shape of the interference fit between the hollow shaft and the component is defined by the contact surface shape of the at least one deformation element at least partially contacting the inner surface of the hollow shaft.
Ein effizientes und gut in automatisierte Fertigungsprozesse integrierbares Verfahren wird in vorteilhafter Ausgestaltung der Erfindung dann erreicht, wenn das erfindungsgemäße Verfahren zumindest die Schritte
- a) Positionieren des weiteren Verformungsorgans an der Innenfläche der Hohlwelle im Bereich des Bauteils durch translatorisches Bewegen des weiteren Verformungsorgans innerhalb der Hohlwelle
- b) Festsetzen des weiteren Verformungsorgans an dieser Position
- c) wenigstens teilweises Bewegen des ersten Verformungsorgans innerhalb des weiteren Verformungsorgans durch translatorisches Bewegen des ersten Verformungsorgans innerhalb der Hohlwelle
- c) die Bewegung des ersten Verformungsorgans wenigstens teilweise innerhalb des weiteren Verformungsorgans bewirkt das Aufweiten des weiteren Verformungsorgans und in diesem Bereich zugleich das Aufweiten der Hohlwelle
- d) Herausbewegen des ersten Verformungsorgans aus dem weiteren Verformungsorgan, wobei das weitere Verformungsorgan eine Rückdehnung erfährt
- e) Wiederholung der Schritte a bis e an einer neuen Position innerhalb der Hohlwelle
- a) positioning of the further deformation element on the inner surface of the hollow shaft in the region of the component by translational movement of the further deformation element within the hollow shaft
- b) setting the further deformation element at this position
- c) at least partially moving the first deformation element within the further deformation element by translational movement of the first deformation element within the hollow shaft
- c) the movement of the first deformation member at least partially within the further deformation member causes the expansion of the further deformation element and in this area at the same time the expansion of the hollow shaft
- d) moving out of the first deformation element from the further deformation element, wherein the further deformation element undergoes a re-expansion
- e) repetition of steps a to e at a new position within the hollow shaft
Eine konstruktiv kompakte Umsetzung des erfindungsgemäßen Verfahrens ergibt sich dann, wenn das Fügewerkzeug einen von zumindest einem erstes Verformungsorgan und wenigstens einem weiteren Verformungsorgan gebildeten Expansionsdorn umfasst, der über Führungsmittel innerhalb einer Hohlwelle bewegbar ist und wobei die Verformungsorgane relativ zueinander bewegbar sind und die Relativbewegung der Verformungsorgane zueinander ein wenigstens teilweises Aufweiten der Hohlwelle bewirkt.A structurally compact implementation of the method according to the invention results when the joining tool comprises an expansion mandrel formed by at least one first deformation element and at least one further deformation element, which is movable via guide means within a hollow shaft and wherein the deformation elements are movable relative to each other and the relative movement of the deformation elements causes an at least partial expansion of the hollow shaft to each other.
Die Relativbewegung der Vorformungsorgane zueinander und die Bewegung des Fügewerkzeugs innerhalb einer Hohlwelle lässt sich dann besonders einfach umsetzen, wenn in einer vorteilhaften Ausgestaltung der Erfindung das wenigstens eine erste Verformungsorgan als kegelförmiger Dorn ausgeführt ist, dessen größter Kegeldurchmesser kleiner als der Innendurchmesser der Hohlwelle ist.The relative movement of the Vorformungsorgane each other and the movement of the joining tool within a hollow shaft can be particularly easy to implement, if in an advantageous embodiment of the invention, the at least one first deformation member is designed as a conical mandrel whose largest cone diameter is smaller than the inner diameter of the hollow shaft.
In vorteilhafter Ausgestaltung der Erfindung kann die Translationsbewegung des ersten Verformungsorgans auf konstruktiv einfache Weise dadurch realisiert werden, dass dem ersten Verformungsorgan ein als Zugstange ausgeführtes Führungsmittel angeformt ist und die Zugstange durch Koppelung mit einem Antrieb eine translatorische Bewegung innerhalb der Hohlwelle ausführt.In an advantageous embodiment of the invention, the translational movement of the first deformation member can be realized in a structurally simple manner that the first deformation member designed as a pull rod guide means is formed and the pull rod by coupling with a drive performs a translational movement within the hollow shaft.
In vorteilhafter Weiterbildung der Erfindung kann die Aufweitung der Hohlwelle zur Schaffung des erfindungsgemäßen Presssitzes kostengünstig und dennoch funktionssicher dadurch sichergestellt werden, dass das wenigstens eine weitere Verformungsorgan als eine von Ringsegmenten gebildete Ringbuchse ausgeführt ist und die Ringsegmente in radialer Richtung der Ringbuchse zwischen einer Nichtarbeitsstellung und wenigstens einer Arbeitsposition hin und her bewegbar sind. In diesem Zusammenhang ist es von Vorteil, wenn der Außendurchmesser der Ringbuchse in der Nichtarbeitsposition kleiner und in der wenigstens einen Arbeitsposition größer als der Innendurchmesser der Hohlwelle ist.In an advantageous embodiment of the invention, the expansion of the hollow shaft to create the press fit according to the invention cost and yet reliable function can be ensured that at least one further deformation member is designed as a ring segments formed by ring segments and the ring segments in the radial direction of the ring bush between a non-working position and at least a working position are movable back and forth. In this context, it is advantageous if the outer diameter of the annular bush in the non-working position is smaller and in the at least one working position greater than the inner diameter of the hollow shaft.
In vorteilhafter Ausgestaltung der Erfindung kann die Translationsbewegung des weitern Verformungsorgans in analoger Weise zu dem ersten Verformungsorgan auf konstruktiv einfache Weise dadurch realisiert werden, dass dem weiteren Verformungsorgan ein als Stützrohr ausgeführtes Führungsmittel angeformt ist und das Stützrohr durch Koppelung mit einem Antrieb eine translatorische Bewegung innerhalb der Hohlwelle ausführt.In an advantageous embodiment of the invention, the translational movement of the further deformation member can be realized in a manner analogous to the first deformation member in a structurally simple manner that the further deformation element is designed as a support tube running guide and the support tube by coupling with a drive a translational movement within the Hollow shaft executes.
Indem der Antrieb des Stützrohres einenends gestellfest angeordnet ist und anderenends mit einem am Stützrohr fixierten Tragarm gekoppelt ist und wobei der Tragarm zugleich den Antrieb des ersten Verformungsorgans aufnimmt, wird sichergestellt, dass die Relativbewegung der Verformungsorgane zueinander auf konstruktiv einfache und bauraumsparende Weise möglich wird.By the drive of the support tube is arranged at one end fixed to the frame and the other end is coupled to a support arm fixed to the support tube and wherein the support arm also receives the drive of the first deformation member, it is ensured that the relative movement of the deformation organs to each other in a structurally simple and space-saving manner is possible.
Unter dem Gesichtspunkt der Realisierung einer präzisen Relativbewegung der Vorformungsorgane zueinander und des Sicherstellens der Übertragung hoher Verformungskräfte ist in vorteilhafter Weiterbildung der Erfindung das weitere Verformungsorgan so gestaltete, dass die Innenflächen der Ringsegmente des weiteren Verformungsorgans eine Kegelstumpffläche ausbilden deren Flankenneigungswinkel dem Flankenneigungswinkel des als kegelförmiger Dorn ausgebildeten ersten Verformungsorgans entspricht.From the point of view of realizing a precise relative movement of the Vorformungsorgane each other and ensuring the transmission of high deformation forces, the further deformation element is designed in an advantageous development of the invention that the inner surfaces of the ring segments of the further deformation element form a frustoconical surface whose edge tilt angle formed the edge inclination angle of the cone-shaped mandrel first deformation element corresponds.
Um das erfindungsgemäße Fügewerkzeug flexibel an unterschiedliche Innendurchmesser von Hohlwellen anpassen zu können, kann in einer vorteilhaften Ausgestaltung der Erfindung vorgesehen sein, dass die Verformungsorgane und die ihnen jeweils zugeordneten Führungsmittel lösbar miteinander verbunden und/oder einander berührend angeordnet sind. Dies hat vorallem den Vorteil, dass beim Einsatz des Fügewerkzeugs in Hohlwellen mit unterschiedlichem Innendurchmesser stets nur der Dorn sowie gegebenenfalls die Ringbuchse ausgetauscht werden müssen. Ein Austausch der Ringbuchse könnte dann sogar entfallen, wenn die radiale Bewegung der Ringsegmente der Ringbuchse derart ausgeprägt ist, dass auch bei unterschiedlichen Innendurchmessern der Hohlwelle stets die geforderte Qualität des erfindungsgemäßen Presssitzes erreicht wird.In order to be able to flexibly adapt the joining tool according to the invention to different inner diameters of hollow shafts, it can be provided in an advantageous embodiment of the invention that the deformation elements and their associated guide means are releasably connected to each other and / or arranged touching each other. This has the particular advantage that when using the joining tool in hollow shafts with different inner diameter always only the mandrel and possibly the ring bushing must be replaced. An exchange of the ring bushing could then even be omitted if the radial movement of the ring segments of the ring bushing is so pronounced that even with different inner diameters of the hollow shaft always the required quality of the interference fit according to the invention is achieved.
Eine besonders effiziente Umsetzung des erfindungsgemäßen Verfahrens sowie der zugehörigen Vorrichtung wird dann erreicht, wenn die Erfindung im Bereich der Herstellung von Nockenwellen zur Fixierung der Nocken auf der Nockenwelle eingesetzt wird.A particularly efficient implementation of the method according to the invention and of the associated device is achieved when the invention is used in the field of producing camshafts for fixing the cams on the camshaft.
Wegen der sehr hohen Anforderungen an die Qualität von Presssitzverbindungen ist es von Vorteil, wenn die Antriebe der Führungsmittel an eine Steuer- und Auswerteinheit gekoppelt sind und wobei die Steuer- und Auswerteinheit die Relativbewegung der Verformungsorgane zueinander in Abhängigkeit von in der Steuer- und Regeleinheit hinterlegten Kennlinien steuert. Dies hat insbesondere den Vorteil, dass die Presssitzverbindungen stets in gleichbleibend hoher Qualität gefertigt werden können, da elektronische Systeme besser geeignet sind schnell und präzise auf verschiedenste Randbedingungen zu reagieren, um letztlich auch bei schwankenden Randbedingungen stets das gleiche hochwertige Arbeitsergebnis zu erreichen. In diesem Zusammenhang ist es von besonderem Vorteil, wenn die Kennlinien die Position der Verformungsorgane, die Flankenneigungswinkel und Materialkennwerte der Hohlwelle und der Bauteile berücksichtigen, wobei die Materialkennwerte den Elastizitätsmodul, die Dichte, die Temperatur und/oder die Materialzusammensetzung der Hohlwelle und/oder der Bauteile umfassen können.Because of the very high demands on the quality of press-fit connections, it is advantageous for the drives of the guide means to be coupled to a control and evaluation unit and for the control and evaluation unit to deposit the relative movement of the deformation elements relative to one another in the control and regulation unit Controls characteristic curves. This has the particular advantage that the press-fit connections can always be manufactured in consistently high quality, since electronic systems are better suited to react quickly and precisely to various boundary conditions in order ultimately to achieve the same high-quality work result even under fluctuating boundary conditions. In this context, it is particularly advantageous if the characteristic curves take into account the position of the deformation elements, the edge inclination angles and material characteristics of the hollow shaft and of the components, the material characteristics being the modulus of elasticity, the density, the temperature and / or the material composition of the hollow shaft and / or the Components may include.
Weitere vorteilhafte Ausgestaltungen sind Gegenstand weiterer Unteransprüche und werden nachfolgend an Hand eines in mehreren Figuren dargestellten Ausführungsbeispiels beschrieben. Es zeigen:
- Figur 1
- Eine bevorzugte Ausführungsform eines erfindungsgemäßen Fügewerkzeugs in einer Nichtarbeitsposition in der Seitenansicht
- Figur 2
- das Fügewerkzeug nach
Figur 1 in der Frontansicht - Figur 3
- Eine bevorzugte Ausführungsform des erfindungsgemäßen Fügewerkzeugs in einer Arbeitsposition in der Seitenansicht
Figur 4- Eine bevorzugte Ausführungsform des erfindungsgemäßen Fügewerkzeugs in einer weiteren Nichtarbeitsposition in der Seitenansicht
- FIG. 1
- A preferred embodiment of a joining tool according to the invention in a non-working position in the side view
- FIG. 2
- after the joining tool
FIG. 1 in the front view - FIG. 3
- A preferred embodiment of the joining tool according to the invention in a working position in the side view
- FIG. 4
- A preferred embodiment of the joining tool according to the invention in a further non-working position in the side view
Der Innenraum 9 der rohrförmigen Hohlwelle 3 wird zumindest teilweise von dem erfindungsgemäßen Fügewerkzeug 10 durchsetzt, wobei das Fügewerkzeug 10 in noch näher zu beschreibender Weise eine Translationsbewegung in Richtung beider Enden der Hohlwelle 3, wie dies mit dem Richtungspfeil 11 angedeutet wird, ausführen kann. Das Fügewerkzeug 10 besteht aus zumindest einem ersten Verformungsorgan 12 und wenigstens einem weiteren Verformungsorgan 13. Im dargestellten Ausführungsbeispiel wird das erste Verformungsorgan 12 von einem kegelförmigen Dorn 14 gebildet, dem einenends ein als Zugstange 15 ausgeführtes Führungsmittel 16 angeformt ist. Es liegt im Rahmen der Erfindung, dass das Führungsmittel 16 und der Dorn 14 einstückig ausgebildet oder beispielsweise mittels nicht dargestelltem Gewinde lösbar miteinander verbunden sind. Die Kegelform des Dorns 14 ist so gewählt, das der größte Kegeldurchmesser 17 des Dorns 14 kleiner als der Innendurchmesser 18 der Hohlwelle 3 ist. Dem dornseitigen Ende abgewandt, ist die Zugstange 15 über an sich bekannte Koppelglieder 19 mit einem beispielsweise als elektrisch oder hydraulisch angetriebener Linearmotor ausgeführten Antrieb 20 gekoppelt, der das wenigstens eine erste Verformungsorgan 12 gemäß Pfeilrichtung 11 innerhalb der Hohlwelle 3 bewegen kann. Das wenigstens eine weitere Verformungsorgan 13 wird von einer Ringbuchse 21 gebildet, die gemäß
Ferner sind den Ringsegmenten 22 an einer Stirnfläche ein als Stützrohr 24 ausgebildetes Führungsmittel 16 zugeordnet. Dem Stützrohr 24 ist einenends ein abgewinkelter Tragarm 36 zugeordnet der in analoger Weise zur Zugstange 15 das Stützrohr 24 über an sich bekannte Koppelglieder 25 mit einem zum Beispiel als elektrisch oder hydraulisch angetriebener Linearmotor ausgeführten Antrieb 26 gekoppelt. Auf diese Weise kann die Position der Ringbuchse 21 innerhalb der Hohlwelle 3 lagefixiert werden. Es liegt im Rahmen der Erfindung, dass die Ringsegmente 22 der Ringbuchse 21 in nicht dargestellter Weise mit dem Stützrohr 24 in der Weise verriegelbar sind, dass das wenigstens eine weitere Verformungsorgan 13 gemäß Pfeilrichtung 11 innerhalb der Hohlwelle 3 bewegt und in eine neu Position verbracht werden kann. Eine konstruktiv einfachere Ausführung ergibt sich dann, wenn der Antrieb 26 des Stützrohres 24 gestellfest angeordnet ist und der Antrieb 20 des ersten Verformungsorgans 12 an dem mit dem Stützrohr 24 verbundenen Tragarm 36 angelenkt ist. Damit kann ein Verschieben der Verformungsorgane 12, 13 innerhalb der Hohlwelle 3 ohne zusätzliche Verriegelungen realisiert werden.Further, the
Es liegt im Rahmen der Erfindung, dass der Dorn 14 und die Ringbuchse 21 jeweils beidseitig an ihren Stirnflächen über die beschriebenen Führungsmittel 16 verfügen, sodass an Stelle eines einseitigen Antriebs und einer einseitigen Lagerung ein beidseitiger Antrieb und eine beidseitige Lagerung der Verformungsorgane 12, 13 unter dem Gesichtspunkt einer präzisen Arbeitsweise des Fügewerkzeugs 10 realisierbar ist.It is within the scope of the invention that the
Weiter bilden die Innenflächen 27 der Ringsegmente 22 der Ringbuchse 21 gemeinschaftlich die Form eines Kegelstumpfes 28 nach. Die Ausrichtung dieses Kegelstumpfes 28 ist so gewählt, dass der ebenfalls kegelstumpfförmige Dorn 14 des ersten Verformungsorgans 12 in diesen Kegelstumpf 28 eintauchen und aus diesem heraustreten kann. Eine sehr wirkungsvolle Relativbewegung zwischen den beiden Verformungsorganen 12, 13 kann dann erreicht werden, wenn die Flankenneigungswinkel 29, 30 des Kegelstumpfes 28 und des Dorns 14 nahezu identisch sind, sodass der Dorn 14 die Ringbuchse 21 vollständig durchsetzen kann.Further, the inner surfaces 27 of the
Das erfindungsgemäße Verfahren zur Realisierung eines Presssitzes zwischen dem Bauteil 5 und einer Hohlwelle 3 umfasst zunächst in einem ersten Schritt die Positionierung des Bauteils 5 auf der Hohlwelle 3. In an sich bekannter Weise erfolgt dies durch Aufschieben des Bauteils 5 auf die Hohlwelle 3 und dessen Lagefixierung in der gewünschten Verbindungsposition. Je nach Ausführungsform können ein oder mehrere, beispielsweise als Nocken 4 einer Nockenwelle 1 ausgeführte Bauteile 5 zugleich oder nacheinander auf der Hohlwelle 3 positioniert werden. Sind die Bauteile 5 in der richtigen Position lagefixiert wird durch Inbetriebnahme des dem weiteren Verformungsorgan 13 zugeordneten Antriebs 26 das weitere Verformungsorgan 13 im Inneren der Hohlwelle 3 translatorisch in den Bereich des Bauteils 5 verfahren, wobei dies in dem dargestellten Ausführungsbeispiel durch Verfahren des dem Stützrohr 24 zugeordneten Tragarms 36 gemäß Pfeilrichtung 37 bewirkt wird. Je nach gewünschter Presssitzgeometrie kann die dem weiteren Verformungsorgan 13 zugeordnete Ringbuchse 21 der Breite des Bauteils 5 entsprechen beziehungsweise größer oder kleiner als diese sein.The inventive method for realizing a press fit between the
In einem nächsten Schritt wird das erste Verformungsorgan 12 durch Inbetriebnahme des ihm zugeordneten Linearmotors 20 ebenfalls translatorisch im Inneren der Hohlwelle 3 in Richtung der Ringbuchse 21 des weiteren Verformungsorgans 13 bewegt. Gemäß
In einem sich anschließenden Verfahrensschritt gemäß
Zur Schaffung hochpräziser Presssitze kann in einer weiteren Ausgestaltung der Erfindung gemäß
Es liegt im Rahmen des Könnens eines Fachmanns die beschriebene Ausbildung eines Presssitzes zwischen einem Bauteil 5 und einer Hohlwelle 3 in nicht dargestellter Weise abzuwandeln oder in anderen als den dargestellten Anwendungsfällen einzusetzen, um die beschriebenen Effekte zu erzielen, ohne dabei den Rahmen der Erfindung, wie sie in den Ansprüchen definiert ist, zu verlassen.It is within the skill of a skilled person to modify the described training of a press fit between a
- 11
- Nockenwellecamshaft
- 22
- WellengrundkörperShaft base body
- 33
- Hohlwellehollow shaft
- 44
- Nockencam
- 55
- Bauteilcomponent
- 66
- Bohrungdrilling
- 77
- Außendurchmesserouter diameter
- 88th
- FügespielAdd game
- 99
- Innenrauminner space
- 1010
- Fügewerkzeugjoining tool
- 1111
- Richtungspfeilarrow
- 1212
- Verformungsorgandeformation body
- 1313
- Verformungsorgandeformation body
- 1414
- Dornmandrel
- 1515
- Zugstangepull bar
- 1616
- Führungsmittelguide means
- 1717
- KegeldurchmesserCone diameter
- 1818
- InnendurchmesserInner diameter
- 1919
- Koppelgliedcoupling member
- 2020
- Antriebdrive
- 2121
- Ringbuchsering socket
- 2222
- Ringsegmentring segment
- 2323
- Pfeilrichtungarrow
- 2424
- Stützrohrsupport tube
- 2525
- Koppelgliedcoupling member
- 2626
- Antriebdrive
- 2727
- Innenflächepalm
- 2828
- Kegelstumpftruncated cone
- 2929
- FlankenneigungswinkelFlank inclination angle
- 3030
- FlankenneigungswinkelFlank inclination angle
- 3131
- NichtarbeitspositionNot working position
- 3232
- Arbeitspositionworking position
- 3333
- Verformungdeformation
- 3434
- Steuer- und AuswerteinheitControl and evaluation unit
- 3535
- Fixiermittelfixer
- 3636
- TragarmBeam
- 3737
- Pfeilrichtungarrow
Claims (19)
- A method for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner, wherein the component is positioned on the hollow shaft with joint clearance and fastened in a certain position on the hollow shaft by eliminating the joint clearance, wherein the joint clearance is eliminated by widening the hollow shaft by means of a joining tool that at least partially extends through the hollow shaft, wherein the joining tool (10) features at least a first deformation element (12) and at least a further deformation element (13), and wherein the first and second deformation elements (12, 13) can be moved into arbitrary positions in the interior of the hollow shaft (3) in the direction of the longitudinal axis (11) thereof and make it possible to widen (23, 33) the hollow shaft (3) in these arbitrary positions,
characterized in
that the deformation elements (12, 13) are moved relative to one another, wherein an at least partial movement of the first deformation element (12) within the additional deformation element (13) is realized due to a translatory movement (11) of the first deformation element (12) within the hollow shaft (3), and wherein the relative movement between the deformation elements (12, 13) causes the hollow shaft (3) to be at least partially widened. - The method for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to claim 1,
characterized in
that the widening of the hollow shaft (3) is realized by widening (23) the deformation element (13, 21, 22) that contacts the hollow shaft (3) on a defined inner peripheral surface. - The method for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of the preceding claims,
characterized in
that at least one deformation element (13) is realized such that it can be expanded and contracted. - The method for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of the preceding claims,
characterized in
that the shape of the interference fit between the hollow shaft (3) and the component (5) is defined by the contact surface shape of the at least one deformation element (21, 22) that at least partially contacts the inner surface of the hollow shaft (3). - The method for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of the preceding claims,
characterized in
that the method comprises the steps ofa) positioning the further deformation element (13) on the inner surface of the hollow shaft (3) in the region of the component (5) by moving (11) the additional deformation element (13) within the hollow shaft (3) in a translatory manner,b) fixing the further deformation element (13) in this position,d) wherein the at least partial movement of the first deformation element (12) within the further deformation element (13) causes the further deformation element (13) to widen (23) and the hollow shaft (3) to simultaneously widen (33) in this region,e) moving the first deformation element (12) out of the further deformation element (13), wherein the additional deformation element (13) moves back into an idle position, andf) repeating steps a-e in a new position within the hollow shaft (3). - The method for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of the preceding claims,
characterized in
that at least the first deformation element (12) is provided in the form of a conical mandrel (14), the largest cone diameter (17) of which is smaller than the inside diameter (18) of the hollow shaft (3). - The method for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of the preceding claims,
characterized in
that the at least one further deformation element (13) is provided in the form of an annular bushing (21) that is composed of ring segments (22), in
that the ring segments (22) can be moved back and forth between an idle position (31) and at least one working position (32) in the radial direction (23) of the annular bushing (21), and in
that the outside diameter of the annular bushing (21) is in the idle position (31) smaller and in the at least one working position (32) larger than the inside diameter (18) of the hollow shaft (3) prior to widening of the hollow shaft (3). - The method for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of the preceding claims,
characterized in
that a guiding means (16) in the form of a tie rod (15) is integrally formed onto the first deformation element (12) and the tie rod (15) carries out a translatory movement (11) within the hollow shaft (3) due to its coupling to a drive (20), in
that a guiding means (16) in the form of a support tube (24) is assigned to the further deformation element (13) and the support tube (24) carries out a translatory movement (11) within the hollow shaft (3) due to its coupling to a drive (26), and in
that the drives (20, 26) of the guiding means (16, 15, 24) are coupled to a control and evaluation unit (34), wherein the control and evaluation unit (34) controls the relative movement (11) between the deformation elements (12, 13) as a function of characteristics stored in the control and the evaluation unit (34). - The method for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to claim 7,
characterized in
that the characteristics take into consideration the position of the deformation elements (12, 13), the flank inclination angles (29, 30) and material properties of the hollow shaft (3) and the components (5). - A device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner, wherein the component can be positioned on the hollow shaft with a joint clearance and fastened in a certain position on this hollow shaft by eliminating the joint clearance, wherein the joint clearance can be eliminated by widening the hollow shaft by means of a joining tool that at least partially extends through the hollow shaft, wherein the joining tool (10) comprises an expansion mandrel (14, 21, 22) that is composed of at least a first deformation element (12) and at least a further deformation element (13) and can be moved within the hollow shaft (3) by guiding means (16, 15, 24), and wherein the first and second deformation elements (12, 13) can be moved into arbitrary positions in the interior of the hollow shaft (3) in the direction of the longitudinal axis (11) thereof and make it possible to widen (23, 33) the hollow shaft (3) in these arbitrary positions,
characterized in
that the first deformation element (12) can be at least partially moved within the further deformation element (13), wherein the deformation elements (12, 13) can be moved relative to one another and the relative movement between the deformation elements (12, 13) causes the hollow shaft (3) to be at least partially widened (33). - The device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to claim 10,
characterized in
that at least the first deformation element (12) is realized in the form of a conical mandrel (14). - The device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to claim 11,
characterized in
that a guiding means (16) in the form of a tie rod (15) is integrally formed onto the first deformation element (12) and the tie rod (15) carries out a translatory movement (11) within the hollow shaft (3) due to its coupling to a drive (20). - The device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of claims 10-12,
characterized in
that the at least one further deformation element (13) is provided in the form of an annular bushing (21) that is composed of ring segments (22). - The device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to claim 13,
characterized in
that the ring segments (22) can be moved back and forth between an idle position (31) and at least one working position (32) in the radial direction (23) of the annular bushing (21). - The device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to claim 4,
characterized in
that the ring segments (22) of the annular bushing (21) are connected to one another by means of a common fixing means (35). - The device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of claims 13-15,
characterized in
that a guiding means (16) in the form of a support tube (24) is assigned to the further deformation element (13) and the support tube (24) carries out a translatory movement (11) within the hollow shaft (3) due to its coupling to a drive (26). - The device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to claim 16,
characterized in
that the drive (26) of the support tube (24) is rigidly arranged on a frame on one end and coupled to a carrying arm (36) fixed on the support tube (24) on the other end, wherein the carrying arm (36) simultaneously accommodates the drive (20) of the first deformation element (12). - The device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of claims 10-17,
characterized in
that the inner surfaces of the ring segments (22) of the further deformation element (13) form a truncated cone surface (28), the flank inclination angle (29) of which corresponds to the flank inclination angle (30) of the first deformation element (12) realized in the form of a conical mandrel (14). - The device for connecting a hollow shaft to at least one component arranged on the hollow shaft in a rotation-fixed manner according to one of claims 10-18,
characterized in
that the deformation elements (12, 13) and the guiding means (16, 15, 24) respectively assigned thereto are separably connected to one another and/or arranged such that they contact one another.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102005039784A DE102005039784A1 (en) | 2005-08-22 | 2005-08-22 | Method and device for non-rotatably connecting a hollow shaft with a component |
Publications (3)
Publication Number | Publication Date |
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EP1757381A2 EP1757381A2 (en) | 2007-02-28 |
EP1757381A3 EP1757381A3 (en) | 2008-07-09 |
EP1757381B1 true EP1757381B1 (en) | 2015-10-07 |
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EP06012082.1A Active EP1757381B1 (en) | 2005-08-22 | 2006-06-13 | Method and device for the rotationally secure connection of a hollow axle with a part |
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Country | Link |
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US (2) | US7913373B2 (en) |
EP (1) | EP1757381B1 (en) |
DE (1) | DE102005039784A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102005039784A1 (en) * | 2005-08-22 | 2007-03-08 | Claas Fertigungstechnik Gmbh | Method and device for non-rotatably connecting a hollow shaft with a component |
DE102007012756A1 (en) * | 2007-03-16 | 2008-09-18 | Muhr Und Bender Kg | Method for producing built-up camshafts |
JP5794944B2 (en) * | 2012-03-29 | 2015-10-14 | 三菱重工業株式会社 | Tube expansion method |
DE102013012384A1 (en) * | 2013-07-25 | 2015-01-29 | Man Truck & Bus Ag | Method for manufacturing a built-up camshaft |
DE102014008550A1 (en) * | 2014-06-16 | 2015-12-17 | Sms Meer Gmbh | Mechanical tube expander |
DE102014216657A1 (en) | 2014-08-21 | 2016-02-25 | Technische Universität Chemnitz | Method and device for producing a shaft-hub connection |
CN104551530B (en) * | 2014-12-23 | 2017-10-27 | 绵阳华晨瑞安汽车零部件有限公司 | Combined camshaft assemble method and equipment |
DE102016121464B4 (en) * | 2016-11-09 | 2019-05-29 | Schott Ag | Method for producing a device for use in the production of glass and device produced thereby |
DE102016124280A1 (en) * | 2016-12-13 | 2018-06-14 | Fischer Rohrtechnik Gmbh | Method and tool for producing a metal tubular joining product and corresponding tool |
CN108971935A (en) * | 2018-02-28 | 2018-12-11 | 中信戴卡股份有限公司 | A kind of device for fixing metal tube and plate expanded joint |
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RU2078218C1 (en) * | 1994-12-20 | 1997-04-27 | Алексей Петрович Графчев | Method and tool for manufacturing assembled distribution shaft |
DE19625555C2 (en) * | 1996-06-26 | 1999-08-05 | Hans Dipl Ing Kuehl | Method and device for the rotationally fixed connection of a hollow shaft with at least one part arranged on the shaft |
DE19802484C2 (en) | 1998-01-23 | 2000-06-08 | Daimler Chrysler Ag | Method and device for producing assembled camshafts |
JP2000263160A (en) * | 1999-03-12 | 2000-09-26 | Matsusaka Tekkosho:Kk | Forming device of metal tube |
DE10225688A1 (en) * | 2002-06-03 | 2003-12-11 | Robert Buergler | Process for fixing several hubs on a hollow shaft comprises hydraulically extending the hollow shaft using an extending device |
DE102005039784A1 (en) * | 2005-08-22 | 2007-03-08 | Claas Fertigungstechnik Gmbh | Method and device for non-rotatably connecting a hollow shaft with a component |
-
2005
- 2005-08-22 DE DE102005039784A patent/DE102005039784A1/en not_active Withdrawn
-
2006
- 2006-06-13 EP EP06012082.1A patent/EP1757381B1/en active Active
- 2006-08-21 US US11/507,303 patent/US7913373B2/en not_active Expired - Fee Related
-
2010
- 2010-07-19 US US12/838,764 patent/US20100306982A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1757381A2 (en) | 2007-02-28 |
US7913373B2 (en) | 2011-03-29 |
DE102005039784A1 (en) | 2007-03-08 |
EP1757381A3 (en) | 2008-07-09 |
US20070053740A1 (en) | 2007-03-08 |
US20100306982A1 (en) | 2010-12-09 |
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