EP2637810B1 - Outil pour l'usinage d'une pièce - Google Patents

Outil pour l'usinage d'une pièce Download PDF

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Publication number
EP2637810B1
EP2637810B1 EP11805185.3A EP11805185A EP2637810B1 EP 2637810 B1 EP2637810 B1 EP 2637810B1 EP 11805185 A EP11805185 A EP 11805185A EP 2637810 B1 EP2637810 B1 EP 2637810B1
Authority
EP
European Patent Office
Prior art keywords
drive
forming
tool
tool according
relief
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11805185.3A
Other languages
German (de)
English (en)
Other versions
EP2637810A2 (fr
Inventor
Diego CASTRO MENÉNDEZ-CASTANEDO
Juan Ignacio LÓPEZ MARTINEZ
Iván José PRESA LOPEZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PMG Asturias Powder Metal SA
Original Assignee
PMG Asturias Powder Metal SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PMG Asturias Powder Metal SA filed Critical PMG Asturias Powder Metal SA
Publication of EP2637810A2 publication Critical patent/EP2637810A2/fr
Application granted granted Critical
Publication of EP2637810B1 publication Critical patent/EP2637810B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/025—Dies with parts moving along auxiliary lateral directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth

Definitions

  • the invention relates to a tool for processing a sliding sleeve, in particular a metallic sliding sleeve.
  • WO 2010/075600 A1 is a method for forming deposits on the internal teeth of a powder Rrietallurgisch produced sliding sleeve for a manual transmission known.
  • the molding is done by means of a rolling tool, wherein the deposits are formed by a rear roll under plastic material displacement from the deposit area. Due to the rotational movements of the rolling tool along the surface of the workpiece for a predefined number of tool revolutions there is a risk that the workpiece is mechanically deformed.
  • EP 2 060 346 A2 a tool for compacting a sintered component or for compacting a powder for the sintered component to be produced can be removed.
  • the tool has a variable in terms of its radial dimensions compression element, with the aid of a sintered component in the form of a simple ring or the toothing of a sintered component or a sintered powder is compacted.
  • DE 2 212 512 A1 discloses a tool for forming locks on the provided internal toothing of a sliding sleeve.
  • the invention has for its object to provide a tool with which a sliding sleeve can be processed inexpensively and at the same time dimensionally stable.
  • a tool element is provided, which is easily moved along a working direction to a provided internal toothing of a sliding sleeve.
  • the movement in the working direction is not rotational, but at least substantially translational, so that with little effort, a good efficiency in the processing of the sliding sleeve is achieved.
  • the tool is suitable for machining different sliding sleeves. It is generally suitable for metallic sliding sleeves, in particular for powder metallurgically produced sliding sleeves.
  • the tool is used for molding provided surfaces of one of the above workpieces, e.g. also for the molding of already compacted sintered components or non-compressible components made of solid material.
  • the tool has a transmission element between the tool element and the drive element for transmitting power between the drive element and the tool element.
  • the drive element is driven by a specific device to provide the necessary forces and motions during the process implementation. Since the drive element does not act directly on the tool element, can a finer force transmission and thus a finer adjustment of the surface relief to be produced or the final geometry of the workpiece surface can be achieved. The wear of the tool element is advantageously reduced.
  • the application of a surface of the workpiece is designed as forms of a surface relief on the provided internal toothing of the sliding sleeve as a workpiece surface.
  • the tool element as a molded element on a contact surface with a shape relief. With this shape relief, the mold element is moved in the working direction on the provided workpiece surface to form there the surface relief.
  • a tool is available, which performs the process of molding with a few steps time and cost saving.
  • the shape relief is formed such that the surface relief is formed on the radially aligned surface of a tooth of the internal toothing.
  • the shaped surface relief has a recess forming a latching groove, or the shaped surface relief has a stop tooth with different tooth sections which extend in different directions in the radial direction.
  • Shapes are brought into its defined working position, so that there is no danger of unwanted contact between the shape-relief of the mold element and the internal toothing of the sliding sleeve before molding.
  • the molding element has at least one slot or a plurality of particularly evenly distributed slots, whereby a radially variable extension of the molding element is technically easy to implement.
  • the slots are unevenly distributed. This can be advantageous when machining workpieces with specific geometries.
  • the mold element may be formed integrally or consisting of several segments.
  • the shaping of the surface relief on individual or all teeth of the internal toothing of the sliding sleeve so that the final geometry can be made particularly cost-effective and accurate to measure.
  • a preferred application of the method is therefore the production of sliding sleeves for the automotive industry, especially for manual transmissions of motor vehicles.
  • a desired surface relief can be produced inexpensively on a toothing of a sliding sleeve.
  • Recesses can be formed on the teeth of the toothing, that is, on the teeth material is displaced by molding.
  • the recesses can be beneficial Form deposits, stops or stop teeth or locking grooves on teeth of the toothing.
  • Such surface reliefs such as deposits, locking grooves or stop teeth on the teeth of the toothing must be elaborately made by milling, rolling or other reworking.
  • the conventional post-processing is associated with restrictions on the relief design on the toothing, while the proposed inventions forms allows any surface reliefs.
  • the surface reliefs may have, for example, deposits and / or latching grooves and / or stop teeth.
  • a plurality of processing steps must be performed on a tooth, for example, if a deposit and a locking groove, ie several relief types are provided on this tooth.
  • these different relief types can be realized with a suitably designed shape relief in a single step time and cost saving on the teeth of the teeth provided for this purpose.
  • the measures of claims 8 to 13 support a defined power transmission from the drive element to the surface of the sliding sleeve.
  • the mutually complementary surfaces of the transmission element and the element form parallel to the drive direction of the drive element.
  • This geometry supports a structurally simple design of the mold element and its cost-effective production. Furthermore promotes the simple design of the mold element the functionally safe flow of the molding process.
  • the trained according to claim 15 transmission element allows transverse to the direction of several locations for controlling the movement of the mold element.
  • the molded element can thereby even more stable transfer into an active working position for molding and in an inactive rest position.
  • a tool with a movable in the direction of the mold element and with a transversely movable to the working direction of the drive element for mechanical control of the movement of the mold element EP 2 060 346 A2 known. While in EP 2 060 346 A2 the tool is used for compacting a sintered component or a sintered powder, this prior art principle of a tool is used here for forming a surface relief or the final geometry on a provided internal toothing of a sliding sleeve as a workpiece surface.
  • the tool 1 for molding according to Fig. 1 has a transmission element 2 and a shaped element 3.
  • the transmission element 2 includes a first transmission element part 2a and a second transmission element part 2b. Both transmission element parts 2a and 2b are arranged in the axial direction 16 of the tool 1, that is, along a central longitudinal axis 17 of the tool 1, at a distance from each other.
  • the form element 3 is variable with respect to its radial extent in the radial direction 18.
  • individual or all transmission element parts 2a, 2b are motion-controlled in the radial direction 18. This motion control is done by means of a assigned, in Fig. 1 only schematically illustrated drive element 19a, 19b.
  • the mold element 3 carries a contact surface 5 with a shape relief 20, which is to act on a provided radially inner surface 21 of the annular workpiece 4 for forming in the working direction 22.
  • the working direction 22 extends substantially in the radial direction 18 of the workpiece 4.
  • the relief 20 is formed non-complementary with respect to the inner surface 21 to be formed.
  • the mold element 3 is moved by means of the drive element 19 and the transmission element 2 in the direction of its radially largest extent ( Fig. 1 ).
  • the drive element 19 is driven transversely to the working direction 22 along a drive direction 24.
  • the drive direction 24 extends parallel to the axial direction 16.
  • mutually corresponding or cooperating surfaces of the drive element 19, the transmission element 2 and the mold element 3 ensure the necessary power transmission to the mold element 3, so that this are transferred to its different positions before, during and after molding can, without causing unwanted mechanical contacts between the mold element 3 and its shape relief 20 comes with the workpiece 4.
  • the drive element 19 has a drive surface 25a, 25b which extends at an acute angle to the drive direction 24.
  • Drive surface 25a cooperates with a complementary transfer surface 26a of the transfer element 2a.
  • the transmission element 2 is arranged between the drive element 19 and the mold element 3.
  • the transmission element 2a or 2b has a second transmission surface 6a or 6b, which cooperates with a complementary contact surface 7a or 7b of the mold element 3.
  • the second transmission surfaces 6a, 6b and the contact surfaces 7a, 7b extend parallel to the drive direction 24 or in the axial direction 16.
  • At least one transmission element part 2a, 2b and / or the form element 3 are preferably also movable in the axial direction 16.
  • the mold element 3 is preferably formed substantially annular or hollow cylindrical.
  • a plurality of slots 8 may be provided. They allow a simple radially variable extension of the dimensions of the mold element 3.
  • the mold element 3 can to some extent in the radial direction 18 "open” (radial magnification) and “closed” (radial reduction) are.
  • the provided with slots 8 form element 3 according to Figs. 5A and 5B is suitable for the realization of radially inner end geometries on an inner surface 21 of the workpiece 4.
  • the provided surface of the workpiece 4 is the not yet formed internal toothing 11 of a sliding sleeve 10 (FIG. Fig. 6 ).
  • the end geometry to be formed or the surface relief of the internal toothing 11 to be formed are defined by the shape relief 20 of the shaped element 3 ( Fig. 5A, 5B ).
  • the internal toothing 11 to be machined by shaping can assume different end geometries:
  • the internal toothing 11 or individual teeth 27 thereof can, for example, after shaping, shape the geometry and function of deposits 12 (FIG. Fig. 7A . 8B . 10B ), of abutment teeth 13 ( Fig. 7B . 14B ) or locking grooves 14 (FIG. Fig. 7C . 12B, 12C, 12D ) exhibit.
  • a first variant of a deposit 12 made by molding is shown on a tooth 27.
  • the geometry of this deposit 12 corresponds essentially to the variant according to Fig. 7A
  • a mold element 3 which can be used to form this deposit 12 is shown in FIG Fig. 9 represented in the working position causing the shaping.
  • FIG. 10B is another variant of a deposit 12 made by molding on a tooth 27 shown.
  • a mold element 3 which can be used to form this deposit 12 is shown in FIG Fig. 11 represented in the working position causing the shaping.
  • Figs. 12B, 12C and 12D In each case, a variant of a locking groove 14 produced by molding on a tooth 27 is shown.
  • FIG. 13 A molding element 3 which can be used in principle for forming these locking grooves 14 is shown in FIG Fig. 13 represented in the working position causing the shaping.
  • the nub-like geometry of the mold relief 20 for forming the locking groove 14 is in each case adapted to the geometric variant of the locking groove 14.
  • Figs. 12B, 12C and 12D removable, that the surface relief of the tooth 27 has both a deposit 12 and a locking groove 14.
  • This surface relief can be formed by means of a single mold element 3.
  • a plurality of, in particular two, shaped elements 3 with different shape relief 20 can be used in succession, in order to form the entire surface relief (deposit 12 and latching groove 14) on the tooth 27.
  • a so-called stop tooth 13 is shown as a surface relief on a tooth 27.
  • a mold element 3 which can be used to form this stop tooth 13 is shown in FIG Fig. 15 represented in the working position causing the shaping.
  • the mold elements 3 according to Fig. 9 . 11 . 13 . 15 can in principle the structural design according to Fig. 5A or 5B have - but with a correspondingly adapted shape relief 20.
  • Fig. 16 and Fig. 17 are the drive member 19 and its parts 19a, 19b and the tool 1 as components of a drive device 15 recognizable.
  • the drive device 15 may be configured differently and allows the transmission of the necessary forces to control the movement of the mold element 3.
  • the structural design of the drive device 15 ensures that the mold element 3 can be transferred without unwanted contacting between its shape relief 20 and its contact surface 5 with the workpiece 4 in the desired position.
  • the transmission element 2 or parts 2a, 2b thereof and / or the mold element 3 can be moved in the axial direction 16 during the process execution.
  • the drive device 15 reduces the radial extent of the mold element 3 by means of the transmission element 2b and transfers it to a starting position within the workpiece 4 at a radial distance from the inner surface 21 to be formed (FIG. Fig. 16 ).
  • the mold element 3 is also transferred axially into the required position.
  • the drive device 15 controls the transmission element 2a such that the latter increases the radial extent of the mold element 3 in order to perform the shaping in a working position.
  • the drive device 15 controls the transfer element 2a and / or 2b such that the latter reduces the radial extent of the mold element 3 in order to perform the shaping in a working position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Claims (15)

  1. Outil (1, 15) pour l'usinage d'un manchon coulissant (10),
    - avec un élément d'outil (3) mobile dans une direction de travail (22) pour solliciter une denture intérieure (11) du manchon coulissant (10),
    - avec un élément d'entraînement (19, 19a, 19b) pouvant être entraîné dans une direction d'entraînement (24) transversalement à la direction de travail (22) de l'élément d'outil (3), qui coopère avec l'élément d'outil (3) pour la transmission de force, et
    - avec un élément de transmission (2, 2a, 2b) positionné entre l'élément d'outil (3) et l'élément d'entraînement (19, 19a, 19b) pour la transmission de force entre l'élément d'entraînement (19, 19a, 19b) et l'élément d'outil (3),
    dans lequel
    - l'élément d'outil est réalisé sous la forme d'un élément de forme (3) déplacé dans la direction de travail (22) avec une face de contact (5) et un relief de forme (20) disposé sur celle-ci afin de former un relief de surface (12, 13, 14) sur la denture intérieure préparée (11) du manchon coulissant (10), et
    - le relief de forme (20) est configuré de telle manière que le relief de surface formé sur la surface orientée radialement d'une dent (27) de la denture intérieure (11)
    -- présente un évidement formant une rainure d'encliquetage (14), ou
    -- présente une dent de butée (13) avec différentes parties de dent, qui s'étendent différemment loin en direction radiale (18).
  2. Outil selon la revendication 1, caractérisé en ce que le relief de forme (20) est configuré de telle manière que le relief de surface formé présente en outre un évidement formant un retrait (12) sur un flanc latéral d'une dent (27) de la denture intérieure (11).
  3. Outil selon l'une quelconque des revendications précédentes, caractérisé en ce que le relief de forme (20) est réalisé en vue de former le relief de surface (12, 13, 14) sur la denture intérieure préparée (11) d'un manchon coulissant (10) fabriqué par la métallurgie des poudres.
  4. Outil selon l'une quelconque des revendications précédentes, caractérisé en ce que la direction de travail de l'élément de forme (3) s'étend dans une direction radiale (18) par rapport au manchon coulissant (10).
  5. Outil selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une extension radiale de l'élément de forme (3) est variable.
  6. Outil selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de forme (3) présente au moins une fente (8) pour la variation de l'extension radiale.
  7. Outil selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de forme (3) est formé de segments individuels (9) disposés l'un à côté de l'autre.
  8. Outil selon l'une quelconque des revendications précédentes, caractérisé en ce que la direction d'entraînement (24) de l'élément d'entraînement (19, 19a, 19b) s'étend en direction axiale (16) par rapport au manchon coulissant (10).
  9. Outil selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément d'entraînement (19, 19a, 19b) présente une face d'entraînement (25a, 25b) pour la transmission de force à l'élément de forme (3).
  10. Outil selon la revendication 9, caractérisé en ce que la face d'entraînement (25a, 25b) forme un angle aigu avec la direction d'entraînement (24) de l'élément d'entraînement (19, 19a, 19b).
  11. Outil selon la revendication 9 ou 10, caractérisé en ce que la face d'entraînement (25a, 25b) coopère avec une face de transmission complémentaire (26a, 26b) de l'élément de transmission (2, 2a, 2b) positionné entre l'élément d'entraînement (19, 19a, 19b) et l'élément de forme (3).
  12. Outil selon la revendication 11, caractérisé en ce que l'élément de transmission (2, 2a, 2b) est mobile dans la direction de travail (22) de l'élément de forme (3) et/ou dans la direction d'entraînement (24) de l'élément d'entraînement (19, 19a, 19b).
  13. Outil selon la revendication 11 ou 12, caractérisé en ce que l'élément de transmission (2, 2a, 2b) présente une seconde face de transmission (6a, 6b), qui coopère avec une face d'appui complémentaire (7a, 7b) de l'élément de forme (3).
  14. Outil selon la revendication 13, caractérisé en ce que la seconde face de transmission (6a, 6b) et la face d'appui (7a, 7b) s'étendent parallèlement à la direction d'entraînement (24) de l'élément d'entraînement (19, 19a, 19b).
  15. Outil selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de forme (3) coopère avec un élément de transmission (2), qui présente au moins deux parties d'élément de transmission (2a, 2b) espacées l'une de l'autre transversalement à la direction de travail (22), dans lequel chaque partie d'élément de transmission (2a, 2b) porte une seconde face de transmission (6a, 6b), qui coopère respectivement avec une face d'appui (7a, 7b) de l'élément de forme (3).
EP11805185.3A 2010-11-12 2011-11-11 Outil pour l'usinage d'une pièce Active EP2637810B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT6972010 2010-11-12
PCT/IB2011/002867 WO2012063125A2 (fr) 2010-11-12 2011-11-11 Outil pour l'usinage d'une pièce

Publications (2)

Publication Number Publication Date
EP2637810A2 EP2637810A2 (fr) 2013-09-18
EP2637810B1 true EP2637810B1 (fr) 2017-08-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11805185.3A Active EP2637810B1 (fr) 2010-11-12 2011-11-11 Outil pour l'usinage d'une pièce

Country Status (3)

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EP (1) EP2637810B1 (fr)
CN (1) CN103260789B (fr)
WO (1) WO2012063125A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106180507B (zh) * 2016-07-28 2018-06-19 江苏太平洋精锻科技股份有限公司 薄壁筒内壁第二道径向内环成形工艺

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Publication number Priority date Publication date Assignee Title
CH428631A (de) * 1964-01-16 1967-01-31 Smeralovy Z Narodni Podnik Verfahren und Einrichtung zur Herstellung von Präzisionsprofilstangen durch Radialpressen eines Drahtes
DE2212512C2 (de) * 1972-03-15 1974-11-14 Praga - Automobilove Zavody, N.P., Prag Nachverformung von Innen-Verzahnungen zum Erstellen von Sperrverzahnungen
US3803896A (en) * 1972-05-19 1974-04-16 Automobilove Zavody Np Method and apparatus for forming locking surfaces on gear rings
DE2517039C3 (de) * 1975-04-17 1979-03-08 Vsesojuznyj Nautschno-Issledovatelskij Instrumentalnij Institut Ssr, Moskau Gesenk zum radialen Schmieden
JP2706927B2 (ja) * 1989-01-27 1998-01-28 三菱自動車工業株式会社 カム型による加工装置
JP2577170Y2 (ja) * 1992-06-18 1998-07-23 大岡技研株式会社 ヘリカル歯車の成形装置
DE19523689C2 (de) * 1995-07-05 1998-03-19 Plettac Umformtechnik Gmbh & C Verfahren zum Kalibrieren von Werkstücken mit einer profilierten Außenkontur
ES2371474T3 (es) * 2003-12-04 2012-01-03 Bishop Steering Technology Pty Ltd Aparato y procedimiento para la fabricación de cremalleras de dirección.
AT505947B1 (de) * 2007-11-14 2016-04-15 Miba Sinter Austria Gmbh Verdichtungswerkzeug
AT507738B1 (de) 2008-12-16 2011-03-15 Miba Sinter Austria Gmbh Verfahren zur hinterlegung der innenverzahnung einer pulvermetallurgisch hergestellten schiebemuffe für ein schaltgetriebe

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Also Published As

Publication number Publication date
WO2012063125A3 (fr) 2012-07-19
CN103260789A (zh) 2013-08-21
CN103260789B (zh) 2016-07-13
WO2012063125A2 (fr) 2012-05-18
EP2637810A2 (fr) 2013-09-18

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