• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Apparatus for generating complex curved surfaces such as the epitrochoidal bores of rotary combustion engines, e.g., "Wankel" engines. A workpiece is, in effect, fixed to a first imaginary cylinder which is rolled about the inner circumference of a larger second cylinder. A cylindrical cutting tool is positioned to contact the workpiece along a predetermined machining line which is parallel to the axes of the two imaginary cylinders, the machining line also being fixed relative to the larger of the two cylinders and outside of its outer circumference. The relative movement of the tool and workpiece causes the machining line to generate an eiptrochoidal surface on the workpiece, and this generated surface is maintained theroretically exact by maintaining the axis for the cylindrical cutting surface of the tool in a plane passing through the machining line and through the line of instantaneous tangency between the two imaginary cylinders as the smaller cylinder rolls relatively about the inner circumference of the larger cylinder. This combination of complex relative movements is provided by a relatively simple machine format which includes a drive mechanism utilizing three separately driven rotating gear members. The two members which simulate the rotation of the "imaginary" generating gears are concentrically mounted and do not intermesh or otherwise run relatively around the circumferences of each other, and all three drive gears rotate about axes which remain substantially fixed relative to each other at all times during machine operation.
    公开号:SU778705A3
    申请号:SU721827248
    申请日:1972-09-05
    公开日:1980-11-07
    发明作者:Педерсен Гарри
    申请人:Дзе Глизон Воркс (Фирма)；
    IPC主号:
    专利说明:

    holder 4 parts D along an epitrochoidal trajectory, instrumental head 5 and a crank mechanism 6.
    The mechanism 3 of the relative planetary movement of the part holder is made in the form of a worm gear 7, on which the transverse slider 8c is located with a holder of 4 parts, and a worm gear 9 eccentric to the wheel 7. The wheels 7 and 9 are interconnected by a kinematic chain including gears 10, 11, connected to the drive 2 by means of gears 12, 13. The holder of part 4 has an end coupling half 14. The second end coupling half 15 is mounted on a worm wheel 9. Between them both coupling halves are connected with a cam joint 16, providing possibility of their mutual radial displacement. The holder 4 is mounted on the slider 8 by means of bearings 17, enabling it to rotate.
    The crank mechanism 6 is made up of a rotating disk 18 located on the base 1, on which the tool head 5 is mounted, and a crank shaft 19 connected by means of a worm gear 20, 21 and gears 12, 13 with a drive 2. The crank 22 of the shaft 19 is located in contact with the groove 23 of the swivel disk 18.
    The tool head 5 comprises a motor 24, a spindle 25, a carrier tool T, for example a grinding wheel, an editing mechanism 26, an axial movement actuator 27, an axial oscillation mechanism 28 of a tool T, a transverse feed actuator 29 of the tool head 5.
    The device works as follows.
    The rotation of the tool T is transmitted from the motor 24, and its oscillation in the axial direction is carried out by the mechanism 28. The part is moved from the drive 2 through a kinematic chain including gears 12, 13, gears 10, II and worm wheels 7 and 9.
    In this case, the holder 4 of the part D from the worm gear 9 rotates around the axis OiOi of the imaginary cylinder 30 (Fig. 4). The worm gear 7 rotates around the base 0262 of an imaginary cylinder 31. Due to this, the axis OiOi makes a circular motion around the axis 0202, which corresponds to the cylinder 30 rolling along the cylinder 31. The rotational speeds and the distance between the axes OiOi and 02О2 are selected according to the condition of moving the part along the epitrochoidal trajectories of the given parameters.
    As the workpiece D moves, the tool head 5 is rotated around the axis OZOz using the crank mechanism 6, which coincides with the tool's contact line T with part D. Rotation occurs due to the rotation of the drive shaft 19 from the drive 2, which by its crank 22 rotates the rotary disk 18, and together with it the head 5. The crank mechanism is set up in such a way that the plane P, the passage of the shaft through the axis of rotation of the tool and the axis OzOz, coinciding with the line of contact of the tool with the piece, is located in
    every moment of time perpendicular to the treated surface. FIG. 4 in full lines shows one of the positions of the part D in the process. In this position, the plane P is perpendicular to the surface E being machined to the point corresponding to the OO3 axis. The dashed lines in FIG. 4 shows the other position of the part D. In this position, the plane P (the new position of the plane
    P) is also perpendicular to the surface to be treated at a point on the OO3 axis. A similar position of the plane P takes place in any position of the part. Due to this, tool wear does not affect
    on processing accuracy.
    The execution of the mechanism for moving a part along an epitrochoidal trajectory in the form of one set on one of the Cher. the wheels of the part holder associated with
    coupling with another worm wheel, eliminates the kinematic errors inherent in mechanisms made of gears, and contributes to improving the accuracy of machining parts.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    Device for treating the surface of an epitrochoidal form with ingrown
    a cylindrical tool comprising a mechanism for relative planetary movement of the part holder and tool along an epitrochoidal trajectory connected to the frame, an instrument head mounted for rotation around an axis coinciding with the tool’s contact line with the part and a crank mechanism for turning the tool head to the position wherein the plane passing through the center of rotation of the tool and its line of contact with the part is located perpendicular to the contact surface, different from the fact that, in order to increase the machining accuracy, the mechanism of relative planetary movement is made in the form of two eccentrically mounted on the frame and kinematically interconnected worm wheels, one of which has a transverse slider that carries on bearings, a part holder with an end coupling half, and on the other - a second end coupling half, with the coupling half executing with a cam joint, ensuring their mutual radial displacement, and The crank mechanism of the tool head rotation is made in the form of a rotatable 5 disk located on the frame carrying the tool head and connected to the drive of the crank shaft, the crank of which is installed with the possibility of contact with the rotary disk. Sources of information. taken into account during the examination 1. US patent No. 2870578, cl. 51-90, 1969.
    - -r JM / tftf // g / y Wftfffl // f MH rn- And | Mr -...... ............. g
     //// TyyZy / lfv / T T
    o, 0z GL Figure 1 "
    类似技术:
    公开号 | 公开日 | 专利标题
    SU778705A3|1980-11-07|Device for treating epitrochoidal shape surface
    US4276794A|1981-07-07|Tool machine for machining crankshafts and a method of operation thereof
    US2870578A|1959-01-27|Mechanism for machining trochoidal rotors and counter-rotors
    US2553831A|1951-05-22|Machine for producing cams
    US1798059A|1931-03-24|Machine for making rotors
    US2909010A|1959-10-20|Process of and apparatus for forming manifold symmetrical non-circular profiles on workpieces
    SU1071411A1|1984-02-07|Apparatus for three-dimensional polishing
    US5101601A|1992-04-07|Grinding workpieces
    US3916738A|1975-11-04|Apparatus for machining and/or treatment of trochoidal surfaces
    US5328306A|1994-07-12|Tool spindle, in particular boring spindle
    US3964367A|1976-06-22|Device for machining trochoidal inner walls, especially for the cylinders of Wankel engines
    US3886689A|1975-06-03|Apparatus for forming a trochoidal surface
    US3812574A|1974-05-28|Apparatus for processing the trochoidal housing surfaces of rotary piston mechanisms
    JPH10235519A|1998-09-08|Machining device for coriolis motion gear
    US3823626A|1974-07-16|Method of and apparatus for machining curved surfaces
    US3948144A|1976-04-06|Peritrochoid curved surface generating apparatus
    US3808944A|1974-05-07|Mechanical geometric generator for trochoids employing a bi-linear radial co-ordinate system
    JP2001047162A|2001-02-20|Spinning device
    US4077302A|1978-03-07|Apparatus for machining end housings for slant axis rotary mechanisms
    US3824746A|1974-07-23|Wankel engine cylinder generating machine
    SU848201A1|1981-07-23|Machine for working cone toothed gears
    SU580064A1|1977-11-17|Attachment for machining hypotrochoidal surfaces
    SU524501A3|1976-08-05|Cycloidal surface treatment device
    SU852515A1|1981-08-07|Apparatus for working epitrohoid surfaces
    SU1400860A1|1988-06-07|Apparatus with cycloidal guideline for working cylindrical surfaces
    同族专利:
    公开号 | 公开日
    AU4675572A|1974-03-21|
    ZA724902B|1974-03-27|
    AU458370B2|1975-02-27|
    CH563837A5|1975-07-15|
    CA968160A|1975-05-27|
    DE2245217A1|1973-03-22|
    DE2245217B2|1977-04-21|
    BE788829A|1973-01-02|
    GB1377150A|1974-12-11|
    JPS4849083A|1973-07-11|
    SE377898B|1975-08-04|
    FR2153967A5|1973-05-04|
    IT963391B|1974-01-10|
    US3757474A|1973-09-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2870578A|1957-03-18|1959-01-27|Nsu Werke Ag|Mechanism for machining trochoidal rotors and counter-rotors|
    GB914981A|1960-09-22|1963-01-09|Diedesheim G M B H Maschf|Improvements in machine tools|
    DE1577498A1|1966-10-24|1970-02-26|Univ Dresden Tech|Device for processing trochoidal copy templates|
    US3494388A|1967-06-08|1970-02-10|Vestal O Sanders|Turning and boring head|
    US3595108A|1969-06-16|1971-07-27|Benrus Corp|Apparatus for imparting a non-circular shape to an article|
    US3693297A|1970-03-24|1972-09-26|Bryant Grinder Corp|Apparatus and method for grinding irregular surfaces of revolution|JPS522516B2|1971-12-06|1977-01-21|
    JPS48109573U|1972-03-21|1973-12-17|
    DE2239568A1|1972-08-11|1974-02-28|Jochen Klaar|DEVICE FOR THE MACHINING OF TROCHOID-SHAPED INTERIORS, IN PARTICULAR FOR THE CYLINDERS OF ROTARY ENGINES|
    US3813818A|1972-10-12|1974-06-04|Toyo Kogyo Co|Profile grinder|
    JPS5752186B2|1972-11-03|1982-11-06|
    US4056900A|1973-12-28|1977-11-08|Okuma Machinery Works Ltd.|Cam machining apparatus|
    US3902278A|1973-04-11|1975-09-02|Cincinnati Milacron Heald|Grinding machine for generating an epitrochoidal surface|
    JPS5229472B2|1973-07-20|1977-08-02|
    JPS5758263B2|1973-08-16|1982-12-08|Toshiba Machine Co Ltd|
    US3914903A|1973-08-24|1975-10-28|Gleason Works|Apparatus for following a previously shaped surface of a workpiece and for removing stock from such surface without significantly changing the shape thereof|
    US5042204A|1990-02-15|1991-08-27|Johnson James N|Finishing machine for trochoidal surfaces|
    JP3751223B2|2001-06-13|2006-03-01|山科精器株式会社|Eccentric facing unit|
    DE10327623B4|2003-06-19|2006-07-13|Mtu Aero Engines Gmbh|Milling process for the production of components|
    AT501604B1|2005-11-28|2006-10-15|Johann Ing Geiger|MANUFACTURING PROCESS FOR TURNING PISTON, TURNING-PISTON MACHINES AND COMPRESSORS|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US18058571A| true| 1971-09-15|1971-09-15|
    [返回顶部]