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A Study on Numerically Controlled Machine Tools for Cutting Noncircular Gears and Their Control Method

Research Project

Project/Area Number 04650206
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 機械力学・制御工学
Research InstitutionTohoku University

Principal Investigator

EMURA Takashi  Tohoku Univ. Faculty of Eng., Professor, 工学部, 教授 (80005503)

Co-Investigator(Kenkyū-buntansha) ARAKAWA Akira  Tohoku Univ. Faculty of Eng., Assistant, 工学部, 助手 (60184264)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1993: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1992: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsNoncircular gears / NC machine tool / Mechatronics / CAD / CAM / NC Gear manufacturing Machine / Compensation for rotational error / Steering mechanism / サーボ機構 / 繰り返し制御
Research Abstract

Recently, usefulness of noncircular gears has been recognized and the demand of them is rapidly increasing. However, the conventional design and manufacturing method have no capability of production of the noncircular gears as much as the demand. Therefore, the productive manufacturing system for noncircular gears has been strongly desired. In order to improve the productivity and accuracy of the noncircular gears, the investigators tried to increase the performance of NC gear manufacturing machines. In addition, since CAD / CAM system also plays very important roll for improvement of the productivity, a new CAD / CAM system for noncircular gears were developed.
The summary of this research results are as follows : First, we converted a gear shaper and a hobbing machine into NC gear manufacturing machines which can precisely cut noncircular gears. Secondly, as an application for noncircular gears, an compensation mechanism for rotational error of worm gear was proposed and it was proved … More by using the CAD system developed by the investigators that the noncircultar gears for compensation can be easily designed and produced. The ptich curves of them were deduced from Fourier transform. This design method using Fourier Transform is very useful for design of non-uniform motion mechanism because the pitch curves designed by this method are assured that both pitch curves of the driver and follower always have closed form. The CAD system including this design method enables us to design the noncircular gears very effectively in comparison with the system using empirical design methods. In additon, as the other application of noncircular gears, a new steering mechanism for vehicles was proposed. From the result of analysis, it became clear that the noncircular gears for the steering mechanism are elliptical gears. Since the steering mechanism enables the vehicle to turn with a very small radius and the elliptical gears are suitable for productin, we can anticipate that this mechanism will be used for steering system of many kinds of vehicles. Less

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] T.Emura,L.Wang,A.Arakawa: "A STUDY ON A HIGH-SPEED NC GEAR GRINDING MACHINE USING SCREW-SHAPED CBN WHEEL" ASME International Power Transmission and Gearing Conference. 89-96 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] TAKASHI EMURA,AKIRA ARAKAWA,MICHIAKI HASHITANI: "DEVELOPMENT OF HIGH SPEED SERVO-SPINDLE FOR NC GEAR GRINDING MACHINES" International Journal of Mechatronics. 2. 417-432 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takashi EMURA,Akira Arakawa: "A New Steering Mechanism Using Noncircular Gears" JSME International Journal. 3. 604-610 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira Arakawa,Takashi Emura: "Trajectory Generation for Mobile Robots Using Elliptical Curves" Proceedings of the 6th International Conference on Advanced Robotics. 579-584 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira Arakawa,Takashi Emura,Masahiko Hiraki,Lei Wang: "Control of a Quadruped Robot using Double Crank-Slider Mechanism" Proceedings of the IEEE International Conference on Systems,Man and Cybernetics. 4. 157-162 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takashi Emura,Lei Wang,Akira Arakawa: "A High-Resolution Interpolator for Incremental Encoders by Two-Phase Type PLL" Proceedings of the International Conference on Industrial Electronics,Control and Instrumentation. 3. 1540-1545 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Edited by J.R.Hewit Preston,Buur,Patarinski,Vaha Emura,Weston and Aleksander: "Mechatronics" Springer-Verlag, 315 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.EMURA, L.Wang and A.Arakawa: "A STUDY ON A HIGH-SPEED NC GEAR GRIDING MACHINE USING SCREW-SHAPED CBN WHEEL" Proc. of Int. Power Trans. and Gear Conference. 89-96 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.EMURA, A.ARAKAWA and M.HASHITANI: "Development of High-Speed Serve-Spindle for NC Gear Grinding Machines" Inernational Journal of Mechatronics. Vol.2. 417-432 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takashi EMURA and Akira ARAKAWA: "A New Steering Mechanism Using Noncercular Gears" JSME International Journal. 604-610 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Akira ARAKAWA and Takashi EMURA: "Trajectory Generation for Mobile Robots Using Elliptical Curves" Proc. of 6th Int. Con. on Advanced Robotics. 579-584 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] A.Arakawa, T.Emura, M, Hiraki and L.Wang: "Control of a Quadruped Robot using Double Crank-Slider Mechanism" Proc. of IEEE Int. Con. on Systems, Man and Cybernetics.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takashi Emura, Lei Wang and Akira Arakawa: "A High-Resolution Interpolator for Incremental Encoder by Two-Phase Type PLL" Proc. of Int. Con. on Industrial Electronics. Vol.3. 1540-1545 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takashi Emura: "Mechatronics in NC Machines" Mechatronics, Ddited by J.R.Hewit, Springer-Verlag. 179-220 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Emura,L.Wang,A.Arakawa: "A STUDY ON A HIGH-SPEED NC GEAR GRINDING MACHINE USING SCREW-SHAPED CBN WHEEL" ASME International Power Transmission and Gearing Conference. 89-96 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] TAKASHI EMURA,AKIRA ARAKAWA,MICHIAKI HASHITANI: "DEVELOPMENT OF HIGH SPEED SERVO-SPINDLE FOR NC GEAR GRINDING MACHINES" International Journal of Mechatronics. 2. 417-432 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] Takashi EMURA,Akira Arakawa: "A New Steering Mechanism Using Noncircular Gears" JSME International Journal. 3. 604-610 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] Akira Arakawa,Takashi Emura: "Trajectory Generation for Mobile Robots Using Elliptical Curves" Proceedings of the 6th International Conference on Advanced Robotics. 579-584 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Akira Arakawa,Takashi Emura,Masahiko Hiraki,Lei Wang: "Control of a Quadruped Robot using Double Crank-Slider Mechanism" Proceedings of the IEEE International Conference on Systems,Man and Cybernetics. 4. 157-162 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Takashi Emura,Lei Wang,Akira Arakawa: "A High-Resolution Interpolator for Incremental Encoders by Two-Phase Type PLL" Proceedings of the International Conference on Industrial Electronics,Control and Instrumentation. 3. 1540-1545 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Edited by J.R.Hewit Preston,Buur,Patarinski,Vaha Emura,Weston and Aleksander: "Mechatronics" Springer-Verlag, 315 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Takashi EMURA Akira Arakawa: "A New Steering Mechanism Using Noncircular Gears" JSME International Journal. 35. 604-610 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Takashi Emura Lei Wang Akira Arakawa: "A Study on a High-Speed NC Gear Grinding Machines Using Screw-Shaped CBN Wheel" Proc.of International Power Transmission and Gearing Conference. DE43-1. 89-96 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Takashi EMURA Akira Arakawa M.Hashitani: "Development of High Speed Servo-Spindle for NC Gear Grinding Machines" Mechatronics. 2. 417-432 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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