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Ensuring volumetric accuracy of an industrial robot to extend its offline programming applications

Research Project

Project/Area Number 21H01228
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 18020:Manufacturing and production engineering-related
Research InstitutionHiroshima University

Principal Investigator

Ibaraki Soichi  広島大学, 先進理工系科学研究科(工), 教授 (80335190)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2022: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2021: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywords産業用ロボット / 空間精度 / 誤差補正 / ロボット切削 / アーム型座標測定器 / レーザトラッカ / 運動精度 / 幾何学モデル / 測定
Outline of Research at the Start

現在,産業用ロボットのほとんどは,人間が操作盤を使ってロボットを動かし,それを記憶させる,「ティーチング」によってプログラムされる.ロボットが近い将来,バーチャルモデルによるプログラミングだけで運用されるようになれば,作業の成否はロボットの空間精度が決める.可動領域内の任意の点に位置決めしたとき,指令位置と実際の位置の3次元誤差を「空間誤差」と呼ぶ.本研究の目的は,ロボットの可動領域内のどこでも,空間誤差を高い精度で予測できるモデルを構築することと,それを用いたモデルベース補正法を構築することである.応用実証として,①ロボット切削加工システム.②アーム型3次元座標測定器,への適用を目指す.

Outline of Final Research Achievements

In today’s manufacturing industry, most industrial robots are programmed by the teach method. In near future, many robots will be programmed offline based on a virtual model. Then a robot’s volumetric accuracy i.e. the positioning accuracy with respect to the command position arbitrary given in the entire workspace, will be crucial to successfully perform the given task.
This project proposed a new kinematic model of a robotic manipulator to precisely predict its volumetric accuracy. By implementing the numerical compensation based on it, experiments showed significant improvement of robot volumetric accuracy over the entire workspace. The proposed compensation was applied to new robot applications, requiring higher volumetric accuracy, namely the robotic machining and articulated arm coordinate measuring machines.

Academic Significance and Societal Importance of the Research Achievements

製造現場の人手不足が今後進み,ものづくりのなかで産業用ロボットの役割が増すのは,確実に思える.ロボットの用途を現状より飛躍的に広げるには,コンピュータ上でロボットをプログラムするオフラインプログラムが必須であるが,そのための課題のひとつは,ロボットは位置決め精度が悪いことである.
本研究では,工作機械の空間誤差の補正を応用し,ロボットの位置決め誤差を可動領域全体で高精度に予測し,補正する方法を構築した.それによって,ロボットの新しい用途を開拓する研究を行った.すなわち,①「ポータブルな工作機械」としてのロボット切削加工システム.②アーム型3次元座標測定機の高精度化,である.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (21 results)

All 2024 2023 2022 2021

All Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 3 results) Presentation (11 results) (of which Int'l Joint Research: 5 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Influence of rotary axis angular positioning error motions on robotic probing2024

    • Author(s)
      Ibaraki S., Masamine K., Hamamura M., Takahara O.
    • Journal Title

      CIRP Annals

      Volume: 73 Issue: 1 Pages: 369-372

    • DOI

      10.1016/j.cirp.2024.04.074

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On Thermal Positioning Error of a Planar Robot Arm over Entire Workspace2023

    • Author(s)
      Ibaraki Soichi、Kawano Kandai
    • Journal Title

      International Journal of Automation Technology

      Volume: 17 Issue: 5 Pages: 504-511

    • DOI

      10.20965/ijat.2023.p0504

    • ISSN
      1881-7629, 1883-8022
    • Year and Date
      2023-09-05
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Novel kinematic model of articulated arm coordinate measuring machine with angular position measurement errors of rotary axes2023

    • Author(s)
      Ibaraki S., Saito R.
    • Journal Title

      CIRP Annals

      Volume: 72 Issue: 1 Pages: 449-452

    • DOI

      10.1016/j.cirp.2023.03.035

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel kinematic model of a SCARA-type robot with bi-directional angular positioning deviation of rotary axes2022

    • Author(s)
      Nan Zhao, Soichi Ibaraki
    • Journal Title

      The International Journal of Advanced Manufacturing Technology

      Volume: 120 Issue: 7-8 Pages: 4901-4915

    • DOI

      10.1007/s00170-022-08943-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inclusion of Bidirectional Angular Positioning Deviations in the Kinematic Model of a Six-DOF Articulated Robot for Static Volumetric Error Compensation2022

    • Author(s)
      Alam Md Moktadir、Ibaraki Soichi、Fukuda Koki、Morita Sho、Usuki Hiroshi、Otsuki Naohiro、Yoshioka Hirotaka
    • Journal Title

      IEEE/ASME Transactions on Mechatronics

      Volume: 27 Issue: 6 Pages: 4339-4349

    • DOI

      10.1109/tmech.2022.3156056

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A novel error mapping of bi-directional angular positioning deviation of rotary axes in a SCARA-type robot by “open-loop” tracking interferometer measurement2022

    • Author(s)
      Soichi Ibaraki, Ryota Usui
    • Journal Title

      Precision Engineering

      Volume: 74 Pages: 60-68

    • DOI

      10.1016/j.precisioneng.2021.11.002

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Kinematic Modeling of Six-Axis Industrial Robot and its Parameter Identification: A Tutorial2021

    • Author(s)
      Md. Moktadir Alam, Soichi Ibaraki, Koki Fukuda
    • Journal Title

      International Journal of Automation Technology

      Volume: 15 Issue: 5 Pages: 599-610

    • DOI

      10.20965/ijat.2021.p0599

    • NAID

      130008084753

    • ISSN
      1881-7629, 1883-8022
    • Year and Date
      2021-09-05
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of Kinematic and Compliance Calibration of Serial Articulated Industrial Manipulators2021

    • Author(s)
      Soichi Ibaraki, Nikolas Alexander Theissen, Andreas Archenti, Md. Moktadir Alam
    • Journal Title

      International Journal of Automation Technology

      Volume: 15 Issue: 5 Pages: 567-580

    • DOI

      10.20965/ijat.2021.p0567

    • NAID

      130008084757

    • ISSN
      1881-7629, 1883-8022
    • Year and Date
      2021-09-05
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Novel six-axis robot kinematic model with axis-to-axis crosstalk2021

    • Author(s)
      S. Ibaraki, K. Fukuda, M.M. Alam, S. Morita, H. Usuki, N. Otsuki, H. Yoshioka
    • Journal Title

      CIRP Annals

      Volume: 70(1) Issue: 1 Pages: 411-414

    • DOI

      10.1016/j.cirp.2021.04.079

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Identification of Rotary Axis Angular Positioning Deviations of a Six-axis Robot by R-Test2023

    • Author(s)
      Tianhao Cui, Soichi Ibaraki
    • Organizer
      JSME International Conference on Leading Edge Manufacturing/Materials & Processing (LEM&P2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification of a new kinematic model of an articulated arm coordinate measuring machine using the R-test instrument2023

    • Author(s)
      Ryuichi Saito, Soichi Ibaraki
    • Organizer
      JSME International Conference on Leading Edge Manufacturing/Materials & Processing (LEM&P2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 6軸ロボットの姿勢誤差の計測とモデル化2023

    • Author(s)
      Ravichandran Paveethran, Ibaraki Soichi
    • Organizer
      2023年度精密工学会秋季大会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 6軸ロボットを用いたタッチプローブ測定の精度の向上2023

    • Author(s)
      正峯 敬介,茨木 創一,濱村 実,高原 修
    • Organizer
      2023年度精密工学会秋季大会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 3軸アーム型3次元測定器の試作2023

    • Author(s)
      栗田 直樹,高 靖斐,茨木 創一
    • Organizer
      2023 年度精密工学会中国四国支部・九州支部共催 広島地方講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Identification of A Novel Kinematic Model of Articulated Arm Coordinate Measuring Machines with Angular Positioning Deviation 'Error Map' of Rotary Axes2022

    • Author(s)
      Ryuichi Saito, Soichi Ibaraki
    • Organizer
      International Symposium on Flexible Automation 2022 (ISFA2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Novel Identification Method of Geometric Errors of A Six-Axis Robot with Sweeping Laser Measurement2022

    • Author(s)
      Kianoosh Rossoli, Kira Shuhei, Soichi Ibaraki
    • Organizer
      International Symposium on Flexible Automation 2022 (ISFA2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification of novel six-axis robot kinematic model with angular positioning deviations by R-Test2022

    • Author(s)
      Tianhao Cui, Soichi Ibaraki
    • Organizer
      19th International Conference on Precision Engineering
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] レーザスキャン測定器を用いた6軸ロボットの幾何学モデルの同定2022

    • Author(s)
      吉良秀平, Kianoosh Rossoli, 茨木創一
    • Organizer
      2022年度精密工学会 九州支部・中国四国支部 久留米地方講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 重力が6軸ロボットの位置決め精度に及ぼす影響の測定とモデル化2022

    • Author(s)
      福田 功貴,茨木 創一,森田 翔,臼杵 年,大槻 直洋,吉岡 弘剛
    • Organizer
      2022年度精密工学会春季大会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] スカラ型ロボットの位置決め誤差がタッチプローブ測定に及ぼす影響の推定2022

    • Author(s)
      河野 寛大,茨木 創一
    • Organizer
      2022年度精密工学会春季大会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Patent(Industrial Property Rights)] ロボットの制御装置及び制御方法2021

    • Inventor(s)
      茨木創一
    • Industrial Property Rights Holder
      茨木創一
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-083751
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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