EP1341625B1 - Verfahren zum drückwalzen sowie drückwalzvorrichtung - Google Patents
Verfahren zum drückwalzen sowie drückwalzvorrichtung Download PDFInfo
- Publication number
- EP1341625B1 EP1341625B1 EP01994612A EP01994612A EP1341625B1 EP 1341625 B1 EP1341625 B1 EP 1341625B1 EP 01994612 A EP01994612 A EP 01994612A EP 01994612 A EP01994612 A EP 01994612A EP 1341625 B1 EP1341625 B1 EP 1341625B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stop element
- preform
- tool
- tool mandrel
- mandrel
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
- B21H5/025—Internally geared wheels
Definitions
- the invention relates to a method for spin forming a Workpiece with internal profile, in which a preform of the workpiece is clamped to a tool thorn in his Longitudinal direction is provided with an outer profile, for molding of the inner profile a relative movement between the Tool mandrel and a forming tool to one with the Longitudinal axis of the tool mandrel coincident axis of rotation is executed, wherein the forming tool, the material the tensioned on the tool mandrel preform in the outer profile of the tool mandrel is molded, and the preform with their towards the tool mandrel facing end, at least during the molding of the preform in the outer profile on a stop element is applied. Furthermore, the invention relates a flow-forming device according to the preamble of the claim 9th
- the aforementioned method for spin forming and a suitable for performing the method flow-forming According to the preamble of claim 9, for example, from DE 196 36 567 A1 or DE 198 30 816 C2.
- this known method becomes a preform of the workpiece to a tool mandrel tensioned by means of an axially movable pressure element.
- On the lateral surface of the tool mandrel is an outer profile formed, which is complementary to the inner profile to be produced, for example, a straight toothing, a helical toothing, a splined shaft profile or the like is.
- For shaping the inner profile is a relative movement between the tool mandrel and a forming tool, For example, a forming roll to one with the Longitudinal axis of the tool mandrel coincident axis of rotation performed so that material of the tool mandrel tensioned Preform formed in the outer profile of the tool mandrel or is pressed.
- the forming tool additionally radial, i. transverse to the axis of rotation, and / or axially, i. parallel to the axis of rotation, moved become.
- the invention has the object of developing the aforementioned method and the aforementioned flow-forming device so that tool wear and the risk of tool breakage is further reduced and avoided as possible.
- the object is achieved by a method with the features Claim 1 and in particular solved by the under Preload on the preform during molding fitting Stop element for generating a circumferential direction the preform at this acting, defined torsional stress applies a defined torque to the preform.
- the object is achieved by a flow-forming device solved with the features of claim 9.
- the invention was based on the finding that during the Spin rolling in addition to the forming forces on the preform Torsional forces attack, leading to a twisting of the preform can lead around the axis of rotation. Furthermore was recognized that with a stop element, the resulting Torsions kit can be absorbed and supported, so that the torsional forces distributed over the tool teeth attack the tool thorn and the load on the individual tool teeth of the outer profile reduced accordingly is.
- the invention now proposes, by the stop element at least during forming on the preform a torque exercise, by the circumferential direction of the preform arise at this targeted torsional stresses.
- the force exerted by the stop element torque such that the resulting torsional stresses the torsional forces created during preforming on the preform at least approximately offset, so that despite of forming the preform at most slightly twisted or is twisted.
- defined torque are the resulting during the flow-forming Torsional forces balanced in the preform, so that the tool teeth of the outer profile of the tool mandrel occurring forming forces are lower, consequently the tool teeth exposed to comparatively low loads is and less quickly wears or less prone to tool breakage than when using the known Process.
- the stop element to move relative to the tool mandrel. Is used for generation the relative movement of the tool mandrel to the forming tool the tool mandrel and thus the preform in rotation offset, is also the rotating stop element operated at a correspondingly lower or higher speed, to produce the desired counter torque. In contrast, the relative movement between the tool mandrel and the forming tool by a circumferential movement of the Forming tool generated, the stopper element with respect of the tool mandrel slightly twisted to the desired To generate torque on the preform.
- the preform during clamping on the mandrel also at the same time clamped against the stop element, so that already at the beginning of forming the preform accordingly in axial Direction is clamped and already at the beginning of the spin-rolling the stop element to a corresponding torque can produce the preform.
- the stop element only to a later in contact with the preform bring, so that the forming tool the preform first axially formed to the desired length before the stop element is used.
- the preform is usually close to its one end on the Tool mandrel is held by the forming tool torsional forces caused during forming this face comparatively low while they with increasing distance of the forming tool from the clamping point increase.
- the stop element in the circumferential direction to increase the torque generated by the preform the closer the forming tool moves to the stop element is. In this way it is achieved that during the the forming during the relative movement of the forming tool with respect to the tool mandrel in the direction of the stop element increasing torsional forces by increasing the stop element caused counter torque on a permissible Be kept moderate.
- the generated by the stop element in the circumferential direction of the preform Torque is preferably known in dependence Forming parameters such as the material, the degree of deformation and Similar regulated.
- a sleeve-shaped stop element to use which has an inner profile, with the stop element with a portion of the on Tool mandrel formed outer profile engaged becomes.
- the stop element becomes relative to the mandrel about the axis of rotation such turned that stopper with its inner profile biased against the outer profile of the tool mandrel.
- the longitudinal direction of the preform biasing force generated by the stopper member during forming increase, the closer the forming tool to the stop element is moved up. In this way it is achieved that supports the material flowing in the axial direction and is deflected in the radial direction, so that the Tool teeth on the outer profile of the tool mandrel also completely filled with material near the stop element becomes.
- the invention relates to a Flow-forming device, in particular for carrying out the inventive method is designed.
- inventive Flow-forming device as in the claim 9 is also a tool mandrel with an outer profile for forming the preform, a forming tool and provided a stop element.
- an actuator provided, through which the stop element in the circumferential direction the preform about the axis of rotation relative to Tool mandrel is adjustable. With the help of the actuator can the stopper element relative to the tool mandrel be adjusted to the generation of the torque desired offset of the stop element to the tool on the mandrel set tensioned preform.
- the actuating device has a drive unit on, by a transmission element with the stop element is coupled to the stop element to the Rotate axis of rotation.
- a drive unit is this
- a control device and a brake unit be used, which in a rotationally driven Tool mandrel co-driven by the tool mandrel or entrained stop element for generating the torque slows down specifically.
- the embodiment uses a toothed belt, the with a provided on the drive unit pinion and with a toothing formed on the stop element in Intervention is.
- the timing belt it is possible, already existing flow-forming device without large Retrofit effort.
- gear unit which in turn with a toothing formed on the stop element in engagement stands.
- gear unit for example, a single gear used, which is the drive pinion of the drive unit directly with the formed on the stop element Dovetailing couples.
- gear unit it is also possible the gear unit as a sub or transmission gear train, which consists of several, possibly also switchable gears is constructed.
- the flow-forming device is used as actuator at least one on Stop element or provided on the mandrel guide pin used in one of the tool mandrel or on the stop element trained groove is guided.
- the groove is It is designed so that the stop element at a Shift along the tool mandrel a rotary motion with respect to the mandrel performs, which in the the mandrel tensioned preform the desired torsional stress is produced.
- the groove may in this embodiment of the actuator be formed obliquely or curved.
- a spring arrangement coupling the stop element with the tool mandrel whose spring force acts in the circumferential direction of the stop element such that the spring force increases linearly or progressively with increasing rotation of the stop element relative to the spring arrangement
- the use of a spring arrangement as an actuating device is particularly advantageous when the tool mandrel is set in rotation, wherein the biasing element abutting the preform stop element is entrained. If, during the spin forming, formation of torsional stresses occurs on the preform, the stop element is deflected against the force of the spring arrangement with respect to the tool mandrel.
- the stop element in the longitudinal direction to store the tool mandrel displaceable, and by a Clamping device in the direction of the free end of the tool mandrel to make prestressable. This makes it possible according to the actual forming conditions during the spin forming the biasing forces of the stop element to adjust in the axial direction.
- Fig. 1 shows a sectional view of a first embodiment a flow-forming device 10.
- the flow-forming device 10 has a tool mandrel 11, which is not illustrated end in a known manner on a rotary drive the flow-forming device 10 is flanged.
- the flow-forming device 10 is flanged.
- the free end of the tool mandrel 11 is on its outer peripheral surface as a tool toothing serving external toothing 12, with the, as will be explained later, the desired inner profile is formed in the relevant workpiece.
- the centering mandrel 13 serves for aligning and centering a pressing member 14, in the axial Direction of the rotation axis R between a release position, in which it is spaced from the end face of the tool mandrel 11 is arranged, and a clamping position to be moved can, in which the pressing member 14 is a preform 15 at the Front side of the tool mandrel 11 clamped and secured.
- the flow-forming device 10 has an on the Tool mandrel 11 slid, sleeve-shaped stop element 16, which faces away from the pressure element 14 at its End of pressure pin 17 of a housed in a housing 18, not shown tensioning device, for example a plate spring assembly, is applied.
- the stop element 16 At the other end of the stop element 16, the stop element 16 a section 19 larger inside diameter on, with the stop member 16 via the on the tool mandrel 11 trained external teeth 12 are pushed can, without the stopper member 16 with the external teeth 12 comes into contact.
- a toothing At the front side 20 of the Stop element 16 is a toothing, not shown formed, the purpose of which will be explained later.
- the End 20 of the stop element 16 goes into a conically widening shell portion 21 on, in turn in a cylindrical portion of the stop element 16 expires.
- a forming tool are in the flow-forming device shown 10 multiple rolling elements 22 used, which is evenly distributed on one in a tool carrier 23rd supported outer ring 24 support.
- the rolling elements 22 run at a predetermined angle with respect to the axis of rotation R of the tool mandrel 11 inclined, the inclination angle the rolling elements 22 correspond approximately to the cone angle, with the cone-shaped extended shell section 21 of the stop element 16 with respect to the axis of rotation R runs.
- the rolling elements 22 are in known Way with the help of a support body 25 with bolted thereto Holding elements 26 against falling out of the tool carrier 23 secured.
- a single spinning roller may also be used become.
- Timing belt 28 of an actuator in engagement stands.
- the timing belt 28 is not in turn with a shown drive pinion of a servomotor of the actuator engaged.
- the stop element 16 which under a bias of optionally several 100 kN on the front side of the preform 15 is applied and this presses against the pressing member 14, with respect to the Pressing element 14 in the circumferential direction of the preform 15 to twist.
- the pressing element 14 For pressure-rolling, first the pressing element 14 in moves its release position and then the possibly cup-shaped deep-drawn preform 15 on the tool mandrel 11 postponed. Subsequently, the pressing element 14 moved to its clamping position in which it is the preform 15 presses against the end face of the tool mandrel 11, the preform 15 coincides with the face of its cup-shaped edge portion on the end face 20 of the stop element 16 comes to the plant and this against the Displaced force of the clamping device, not shown. Subsequently, the tool mandrel 11 together with the stop element 16 and the pressing member 14 is rotated, while simultaneously the tool carrier 23 starting from the pressing element 14 in the direction of the stop element 16th along the rotation axis R is moved.
- the stop element 16 of the actuator with the help of the toothed belt 28 with respect to the pressure element 14 about the rotation axis R twisted so that the in the preform 15 by the flow forming torsional forces through the counteracting torque and the thereby causing counteracting torsional stresses be at least partially offset. It prevents formed on the end face 20 of the stop element 16 Gearing, with the front side of the preform 15 in Intervention is, slipping of the stop element 16th with respect to the preform 15.
- the stopper 16 causes So a counter-torque, which by the rolling elements 22nd caused twisting of the preform 15 counteracts, so that an excessive load on the sections of external teeth 12, in particular near the end face of the preform 15th is prevented.
- the flow-forming device 10 was a cup-shaped preform 15 used.
- a Ronde on the tool mandrel 11 through a correspondingly designed spinning roller first in a Cup shape is rolled.
- FIG. 2 and 3 is an alternative embodiment a flow-forming device 30 whose structure substantially corresponds to the structure of the flow-forming device 10, so that identical components with identical reference numerals are designated.
- the only difference of Flow-forming device 30 to the above-described flow-forming device 10 consists in the stop element used 31st
- the stop element 31 corresponds essentially to the previously described stop element 16, however, wherein on the section 32 larger diameter an internal toothing 33rd is formed, which is complementary to that on the tool mandrel 11th trained external toothing 12 is formed and with this is in engagement, as shown in FIG. 3, when the stop element 31 abuts against the preform 15. Also at the second embodiment, the flow-forming device 30 an actuator, which by means of the toothed belt 28, the stop element 31 relative to the pressure element 14 can rotate about the rotation axis R. In this Embodiment, however, is a relative twisting of the Stop element 31 to the pressure element 14 only so far possible, as it is the meshing gears 12 and 33 allow.
- the stop element 31 is fulfilled Consequently, in the flow-forming device 30 in addition the task of the individual teeth of the external teeth 12th of the tool mandrel 11 to generate supporting forces that the individual Support teeth of external teeth 12 during spin forming, while the stopper member 31 at the same time corresponding torque causes the preform 15, by twisting the preform 15 during spin-rolling is at least partially prevented.
- FIG. 4 and 5 is a third embodiment a flow-forming device 14 according to the invention disclosed.
- the structure of the flow-forming device 40 is also the same essentially the structure of the flow-forming device 10, so that identical components with identical reference numerals are designated. Only difference of the flow-forming device 40 opposite the flow-forming device 10 is made in the stop member 41 used and the common with the stop member 41 used actuator 42.
- the actuator 42 has several, evenly over the circumference of the stop element 41st distributed, attached to this guide pin 43, from those in Fig. 4 for illustration, only one guide pin 43 can be seen.
- Each guide pin 43 projects radially inside in the central bore of the sleeve-shaped stop element 41 in one of several on the lateral surface the tool mandrel 44 formed parking grooves 45th
- the parking grooves 45 extend below a Angle ⁇ oblique to the longitudinal direction of the axis of rotation R, so that during a displacement of the stop element 41 along the tool mandrel 44, the stop member 41 through the in the parking grooves 45 received guide pin 43 to the Rotation axis R is twisted.
- the preform 15 is now lengthened axially, causes the axial elongation of the preform 15 in the direction the rotation axis R a displacement of the stop element 41 against the force of the tensioning device, not shown.
- the stop element 41st along the tool mandrel 44 the stop element 41st by the guide pins engaging with the positioning grooves 45 43 is rotated relative to the pressing member 14, so that at the preform 15 corresponding torsional stresses arise, which caused the during the spin rolling Counteract torsional forces.
- the positioning grooves 45 are curved, so that with increasing axial displacement of the stop element 41 corresponding to the counter torque generated by this disproportionately increases.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Pulleys (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Description
α
- Fig. 1
- eine Schnittansicht eines ersten Ausführungsbeispiels einer Drückwalzvorrichtung mit einem verstellbaren Anschlagelement;
- Fig. 2
- eine Schnittansicht eines zum ersten Ausführungsbeispiel ähnlichen zweiten Ausführungsbeispiels einer Drückwalzvorrichtung, bei der das Anschlagelement eine mit der Außenverzahnung eines Werkzeugdorns in Eingriff stehende Innenverzahnung aufweist;
- Fig. 3
- eine Schnittansicht der in Fig. 2 gezeigten Drückwalzvorrichtung entlang der Schnittlinie A-A in Fig. 2;
- Fig. 4
- eine Schnittansicht eines dritten Ausführungsbeispiels einer Drückwalzvorrichtung, bei der als Betätigungseinrichtung für das Anschlagelement ein in eine Nut eingreifender Führungszapfen verwendet wird; und
- Fig. 5
- eine Draufsicht auf die Nut mit darin geführtem Führungszapfen.
Claims (18)
- Verfahren zum Drückwalzen eines Werkstücks mit Innenprofil, bei demeine Vorform (15) des Werkstücks an einen Werkzeugdorn (11; 44) gespannt wird, der in seiner Längsrichtung mit einem Außenprofil (12) versehen ist,zum Ausformen des Innenprofils eine Relativbewegung zwischen dem Werkzeugdorn (11; 44) und einem Umformwerkzeug (22) um eine mit der Längsachse des Werkzeugdorns (11; 44) zusammenfallende Rotationsachse (R) ausgeführt wird, wobei das Umformwerkzeug (22) das Material der am Werkzeugdorn (11; 44) gespannten Vorform (15) in das Außenprofil (12) des Werkzeugdorns (11; 44) einformt, unddie Vorform (15) mit ihrer zum Werkzeugdorn (11; 44) gerichteten Stirnseite zumindest während des Einformens der Vorform (15) in das Außenprofil (12) an einem Anschlagelement (16; 31; 41) anliegt,
- Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass das Anschlagelement (16; 31; 41) zum Erzeugen des Drehmomentes relativ zum Werkzeugdorn (11; 44) bewegt wird. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Vorform (15) beim Spannen am Werkzeugdorn (11; 44) gleichzeitig gegen das Anschlagelement (16; 31; 41) gespannt wird. - Verfahren nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet, dass das Umformwerkzeug (22) während des Einformens eine Relativbewegung bezüglich des Werkzeugdorns (11; 44) entlang der Rotationsachse (1) in Richtung des Anschlagelementes (16; 31; 41) erfährt und dass das vom Anschlagelement (16; 31; 41) in Umfangsrichtung der Vorform (15) erzeugte Drehmoment erhöht wird, je näher das Umformwerkzeug (22) an das Anschlagelement (16; 31; 41) heranbewegt ist. - Verfahren nach Anspruch 4,
dadurch gekennzeichnet, dass das Drehmoment mit geringer werdendem Abstand des Umformwerkzeugs (22) zum Anschlagelement (16; 31; 41) linear oder progressiv erhöht wird. - Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass das vom Anschlagelement (16; 31; 41) in Umfangsrichtung der Vorform (15) erzeugte Drehmoment in Abhängigkeit vom Werkstoff und/oder in Abhängigkeit vom Umformgrad und/oder in Abhängigkeit vom Widerstandsmoment der Vorform (15) geregelt wird. - Verfahren nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass ein hülsenförmiges Anschlagelement (31) mit einem Innenprofil (33) verwendet wird, mit dem das Anschlagelement (31) mit einem Abschnitt des Außenprofils (12) des Werkzeugdorns (11; 44) vor dem Einformen oder während des Einformens in Eingriff gebracht wird, und
dass das Anschlagelement (31) derart relativ zum Werkzeugdorn (11; 44) um die Rotationsachse (R) gedreht wird, dass das Anschlagelement (31) mit seinem Innenprofil (33) unter Vorspannung am Außenprofil (12) des Werkzeugdorns (11; 44) anliegt. - Verfahren nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass das Umformwerkzeug (22) während des Einformens eine Relativbewegung bezüglich des Werkzeugdorns (11; 44) entlang der Rotationsachse (R) in Richtung des Anschlagelements (16; 31; 41) erfährt und dass die in Längsrichtung der Vorform (15) vom Anschlagelement (16; 31; 41) erzeugte Vorspannkraft erhöht wird, je näher das Umformwerkzeug (22) an das Anschlagelement (16; 31; 41) heranbewegt ist. - Drückwalzvorrichtung, insbesondere zur Durchführung eines Verfahrens nach einem der Ansprüche 1 bis 8, miteinem Werkzeugdorn (11; 44), an dem ein Außenprofil (12) zum Ausformen eines Innenprofils an einer Vorform (15) ausgebildet ist,einem Umformwerkzeug (22) zum Einformen von Material der Vorform (15) in das Außenprofil (12) während eines Drückwalzvorganges, wobei der Werkzeugdorn (11; 44) und das Umformwerkzeug (22) relativ zueinander um eine mit der Längsrichtung des Werkzeugdorns (11; 44) zusammenfallende Rotationsachse (R) rotierbar sind, undeinem am Werkzeugdorn (11; 44) vorgesehenen Anschlagelement (16; 31; 41), an dem die Vorform (15) zumindest während des Drückwalzens anliegt,dass das Anschlagelement (16; 31; 41) gegenüber dem Werkzeugdorn verdrehbar gelagert ist unddass an der Drückwalzvorrichtung (10; 30; 40) eine Betätigungseinrichtung vorgesehen ist, welche mit dem Anschlagelement (16); 31; 41) derart zusammenwirkt, dass das Anschlagelement (16; 31, 41) beim Drückwalzen an der Vorform (15) ein Drehmoment ausübt.
- Drückwalzvorrichtung nach Anspruch 9,
dadurch gekennzeichnet, dass die Betätigungseinrichtung eine Antriebseinheit aufweist, die durch ein Übertragungselement (28) zum Rotieren des Anschlagelementes (16) um die Rotationsachse (R) mit dem Anschlagelement (16) gekoppelt ist. - Drückwalzvorrichtung nach Anspruch 10,
dadurch gekennzeichnet, dass das Übertragungselement ein Zahnriemen (28) ist, der mit einem an der Antriebseinheit vorgesehenen Ritzel und mit einer am Anschlagelement (16) ausgebildeten Verzahnung (27) in Eingriff steht. - Drückwalzvorrichtung nach Anspruch 10,
dadurch gekennzeichnet, dass das Übertragungselement ein mit dem Antriebsritzel der Antriebseinheit in Eingriff stehendes Zahnrad einer Getriebeeinheit ist und
dass die aus mindestens einem Zahnrad gebildete Getriebeeinheit mit einer am Anschlagelement ausgebildeten Verzahnung in Eingriff steht. - Drückwalzvorrichtung nach Anspruch 9,
dadurch gekennzeichnet, dass die Betätigungseinrichtung mindestens einen am Anschlagelement (41) oder am Werkzeugdorn (41) vorgesehenen Führungszapfen (43) aufweist, der in einer am Werkzeugdorn (44) oder am Anschlagelement (41) ausgebildeten Nut (45) derart geführt ist, dass das Anschlagelement (41) bei einer Verschiebung entlang dem Werkzeugdorn (44) eine rotatorische Bewegung bezüglich des Werkzeugdorns (44) ausführt. - Drückwalzvorrichtung nach Anspruch 13,
dadurch gekennzeichnet, dass die Nut (45) schräg oder kurvenförmig bezüglich der Verschieberichtung des Anschlagelementes (41) verläuft. - Drückwalzvorrichtung nach Anspruch 9,
dadurch gekennzeichnet, dass die Betätigungseinrichtung eine das Anschlagelement mit dem Werkzeugdorn koppelnde Federanordnung aufweist, deren Federkraft in Umfangsrichtung des Anschlagelementes derart wirkt, dass die Federkraft mit zunehmender Verdrehung des Anschlagelementes relativ zur Federanordnung linear oder progressiv zunimmt. - Drückwalzvorrichtung nach einem der Ansprüche 9 bis 15,
dadurch gekennzeichnet, dass das Anschlagelement (16; 31; 41) in Längsrichtung des Werkzeugdorns (11; 44) verschieblich gelagert und durch eine Spannvorrichtung (17) in Richtung des freien Endes des Werkzeugdorns (11; 44) vorspannbar ist. - Drückwalzvorrichtung nach einem der Ansprüche 9 bis 16,
dadurch gekennzeichnet, dass das am Werkzeugdorn (11) ausgebildete Außenprofil (12) eine Geradverzahnung oder eine Schrägverzahnung ist und dass das Anschlagelement (31) eine entsprechend gestaltete Innenverzahnung (33) aufweist, mit der das Anschlagelement (31) mit der am Werkzeugdorn (11) ausgebildeten Außenverzahnung (12) in Eingriff bringbar ist. - Drückwalzvorrichtung nach einem der Ansprüche 9 bis 17,
dadurch gekennzeichnet, dass das Anschlagelement (16; 31; 41) an seiner mit der Vorform (15) in Berührung kommenden Stirnseite (20) aufgerauht, gerändelt oder verzahnt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10062002A DE10062002B4 (de) | 2000-12-13 | 2000-12-13 | Verfahren zum Drückwalzen sowie Drückwalzvorrichtung |
DE10062002 | 2000-12-13 | ||
PCT/EP2001/012028 WO2002047843A1 (de) | 2000-12-13 | 2001-10-17 | Verfahren zum drückwalzen sowie drückwalzvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1341625A1 EP1341625A1 (de) | 2003-09-10 |
EP1341625B1 true EP1341625B1 (de) | 2005-06-08 |
Family
ID=7666921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01994612A Expired - Lifetime EP1341625B1 (de) | 2000-12-13 | 2001-10-17 | Verfahren zum drückwalzen sowie drückwalzvorrichtung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1341625B1 (de) |
AT (1) | ATE297275T1 (de) |
AU (1) | AU2002224782A1 (de) |
DE (2) | DE10062002B4 (de) |
WO (1) | WO2002047843A1 (de) |
Families Citing this family (4)
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DE102004011178A1 (de) * | 2004-03-08 | 2005-09-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Oberflächenbehandlung von Substraten |
ES2341683T3 (es) | 2008-05-26 | 2010-06-24 | REPKON MACHINE AND TOOL INDUSTRY & TRADE LTD. | Procedimiento para la fabricacion de piezas de trabajo y maquina de laminacion a presion para ello. |
CN102105240A (zh) * | 2008-07-29 | 2011-06-22 | 利普肯机械和工具工业贸易有限公司 | 用于由预成形件制造或加工工件、特别是用于一体成形内轮廓或内齿部的装置和方法 |
CN102000729A (zh) * | 2010-10-18 | 2011-04-06 | 哈尔滨工业大学 | 卧式旋压机的重型芯模支撑装置 |
Family Cites Families (4)
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DE2443585C2 (de) * | 1974-09-12 | 1986-08-21 | Bohner & Köhle GmbH & Co, 7300 Eßlingen | Mitnahmevorrichtung an einer Fließdrückmaschine zum Mitnehmen eines rohrförmigen Werkstücks |
DE19636567C2 (de) * | 1996-09-09 | 2001-07-26 | Leico Werkzeugmaschb Gmbh & Co | Verfahren zum Drückwalzen eines Getriebeteiles mit einer Innenverzahnung |
DE19731055A1 (de) * | 1997-07-19 | 1999-01-21 | Dynamit Nobel Ag | Vorrichtung und Verfahren zum Einformen einer Rillenstruktur in ein rohrförmiges Werkstück |
DE19830816C2 (de) * | 1998-05-07 | 2000-05-31 | Leico Werkzeugmaschb Gmbh & Co | Verfahren zum Drückwalzen und Drückwalzvorrichtung |
-
2000
- 2000-12-13 DE DE10062002A patent/DE10062002B4/de not_active Expired - Fee Related
-
2001
- 2001-10-17 EP EP01994612A patent/EP1341625B1/de not_active Expired - Lifetime
- 2001-10-17 WO PCT/EP2001/012028 patent/WO2002047843A1/de active IP Right Grant
- 2001-10-17 DE DE50106479T patent/DE50106479D1/de not_active Expired - Lifetime
- 2001-10-17 AT AT01994612T patent/ATE297275T1/de not_active IP Right Cessation
- 2001-10-17 AU AU2002224782A patent/AU2002224782A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2002047843A1 (de) | 2002-06-20 |
ATE297275T1 (de) | 2005-06-15 |
AU2002224782A1 (en) | 2002-06-24 |
DE50106479D1 (de) | 2005-07-14 |
DE10062002B4 (de) | 2006-11-09 |
DE10062002A1 (de) | 2001-12-13 |
EP1341625A1 (de) | 2003-09-10 |
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