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Development of Advanced Machine Tool to Realize Autonomous Machining Operation Unconstrained by NC program

Research Project

Project/Area Number 13555035
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 機械工作・生産工学
Research InstitutionKobe University (2003)
Osaka University (2001-2002)

Principal Investigator

SHIRASE Keiichi  Kobe University, Faculty of Engineering, Professor, 工学部, 教授 (80171049)

Co-Investigator(Kenkyū-buntansha) ARAI Eiji  Osaka University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (90135814)
SHIBASAKA Toshiro  Kobe University, Graduate School of Science and Technology, Associate Professor, 自然科学研究科, 助教授 (80094530)
MORIWAKI Toshimichi  Kobe University, Faculty of Engineering, Professor, 工学部, 教授 (00031104)
WAKAMATSU Hidefumi  Osaka University, Graduate School of Engineering, Assistant Professor, 大学院・工学研究科, 助手 (60273603)
岩田 一明  国際高等研究所, 特別研究員 (30031066)
幸田 盛堂  大阪機工(株), 技術本部・第1設計部, 部長
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥10,800,000 (Direct Cost: ¥10,800,000)
Fiscal Year 2003: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 2002: ¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2001: ¥4,700,000 (Direct Cost: ¥4,700,000)
KeywordsNC Machine Tool / Intelligent Machine Tool / Autonomous Machining / Digital Copy Milling / Intelligent Monitoring / Adaptive Control / モニタリング / エンドミル加工 / 自律型・知能型NC工作機械 / 知能型・自律型NC工作機械
Research Abstract

Required functions for an advanced NC machine tool, which realizes autonomous machining operation unconstrained by NC program, have been developed. Following experimental verifications were performed successfully.
1. Direct machining operation controlled by flexible process and operation planning system
A flexible process and operation planning system was developed to generate cutting parameters dynamically for flexible machining operation. The flexible process and operation planning system can generate the production plan from the Total Removal Volume (TRV). The TRV is extracted from initial and finished shapes of the product represented as 3D CAD models. In additional, a technique called digital copy milling was developed to control the NC machine tool in real time. A prototype of autonomous machine tool was implemented, and the experimental cutting tests were carried out successfully.
2. Intelligent monitoring to recognize machining conditions
A virtual machining simulator, which predic … More ts cutting torque in real time, was developed. In addition, a monitoring technique, which detects actual cutting torque by detecting the control signals in NC controller, was developed. In the intelligent monitoring system developed, the actual cutting torque can be compared with the predicted one. The comparison of the actual and predicted, torques during machining operation is very helpful to detect machining trouble or recognize machining conditions.
3. Adaptive control of cutting parameters to keep stable machining operation
The digital copy milling system developed can generate the tool paths in real time and it permits to change the cutting parameters during the machining operation. In addition, a control algorithm to change cutting parameters for avoiding machining trouble and keeping stable machining operation was proposed. An adaptive control system, which is integrated the digital copy milling system and the control algorithm, was implemented. In the experimental cutting tests, not only the feed speed but also the axial and radial depths can be changed suitably to keep stable machining operation. Less

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 中本圭一: "NCプログラムを必要としない機械加工のための仮想倣い加工システム(第2報)"日本機械学会C編. 67巻663号. 3356-3661 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Narita: "Real-Time Cutting Simulation System of Milling Operation for Autonomous and Intelligent Machine Tools"Journal of Production Research. Vol.40, No.15. 3791-3805 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 中本圭一: "NCプログラムを必要としない機械加工のための仮想倣い加工システム(第2報)"日本機械学会C編. 69巻677号. 270-277 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 成田浩久: "加工工程の実時間予測に基づく自律加工"精密工学会誌. 69巻,2号. 227-231 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Nakamoto: "Development of an Innovative Autonomous Machine Tool for Dynamic Product Planning"Science and Technology of Advanced Materials. Vol.5, Issues 1-2. 283-291 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Nakamoto: "Automatic Production Planning System to Achieve Flexible Direct Machinig"JSME International Journal, Series C. Vol.47, No.1. 136-143 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Nakamoto, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Development of Virtual Copy Milling System to Realize NC Programless Machining, 2nd Report Improvement of Collision Check and Realization of Contour-Line mode (Written in Japanese)"Transactions of the Japan Society of Mechanical Engineers Series C. Vol.67, No.663. 3656-3661 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Narita, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Real-Time Cutting Simulation System of a Milling Operation for Autonomous and Intelligent Machine Tools"Journal of Production Research. Vol.40 No.15. 3791-3805 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Nakamoto, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Development of Digital Copy Milling System to Realize NC Programless Machining, 3rd Report Machining Strategy for In-Process Adaptation of Cutting Conditions (Written in Japanese)"Transactions of the Japan Society of Mechanical Engineers Series C. Vol.69, No.677. 270-277 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Narita, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Autonomous Milling Operation Based on Real Time Cutting Process Simulation (Written in Japanese)"Journal of the Japan Society for Precision Engineering. Vol.69, No.2. 227-231 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Nakamoto, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Development of an Innovative Autonomous Machine Tool for Dynamic Product Planning"Science and Technology of Advanced Materials. Vol.5, Issues 1-2. 283-291 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Nakamoto, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Automatic Production Planning System to Achieve Flexible Direct Machining"JSME International Journal Series C. Vol.47, No.1. 136-143 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.SHIRASE: "NC Program Diagnosis Using Cutting Process Simulator for Machine Tool Teleoperation"Proceedings of the 6th International Conference on Mechatronics Technology (ICMT2002). 277-282 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] 中本圭一: "NCプログラムを必要としない機械加工のための仮想倣い加工システムの開発(第3報,自律的インプロセス切削条件修正戦略)"日本機械学会論文集(C編). 69巻677号. 270-277 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.NAKAMOTO: "Dynamic Process and Operation Control for Autonomous Machining"Proceedings of the 7th World Multiconference on Systemics, Cybernetics and Informatics (SCI2003). Volume XIII. 273-278 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.NAKAMOTO: "Autonomous Machine Tool for Achieving "Rapid Manufacturing""Proceedings of the International Conference on Leading Edge Manufacturing in 21st Century (LEM21). 513-518 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.NAKAMOTO: "Development of an Innovative Autonomous Machine Tool for Dynamic Product Planning"Science and Technology of Advanced Materials. 掲載予定.

    • Related Report
      2003 Annual Research Report
  • [Publications] K.NAKAMOTO: "Automatic Production Planning System to Achieve Flexible Direct Machining"JSME International Journal Series C. 掲載予定.

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Nakamoto, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Feed Back Machining Control Using Digital Copy Milling System"Proceedings of the 2002 JAPAN-U.S.A. Symposium on Flexible Automation. 29-35 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Narita, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Autonomous Milling Process Control Based on Real Time Cutting Simulation"Proceedings of the 2002 JAPAN-U.S.A. Symposium on Flexible Automation. 409-414 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Narita, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Real time cutting simulation system of milling system for autonomous and Intelligent machine tools"International Journal of Production Research. Vol.40,No15. 3791-3805 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Shirase, H.Narira, K.Nakamoto, H.Wakamatsu, A.Tsumaya, E.Arai: "NC Program Diagnosis Using Cutting Process Simulator for Machine Tool Teleoperation"Proceedings of the 6th International Conference on Mechatoronics Technology. 277-282 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 中本圭一, 白瀬敬一, 若松栄史, 妻屋 彰, 荒井栄司: "NCプログラムを必要としない機械加工のための仮想倣い加工システムの開発(第3報,自律的インプロセス切削条件修正戦略)"日本機械学会論文集(C). 69巻677号. 270-277 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Narita, K.Shirase, H.Wakamatsu, A.Tsumaya, E.Arai: "Real time cutting simulation system of milling system for autonomous and Intelligent machine tools"Special issue of IJPR for selected papers from 16th ICPR2001. 掲載決定.

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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