Research Paper:
Augmented Reality-Based System for Skill Transfer of Workpiece Fixturing in Turning Operations
Koji Nishida*, Masatoshi Itoh** , and Keiichi Nakamoto*,
*Tokyo University of Agriculture and Technology
2-24-16 Naka-cho, Koganei-shi, Tokyo 184-8588, Japan
Corresponding author
**Yamazaki Mazak Corporation
Oguchi, Japan
For machining operations, preparation work called a “setting operation” is always required in advance. The setting operation, which affects the lead time and machining accuracy, strongly depends on the skill level of the operator. Therefore, to improve the quality of machining operations, skill transfer is necessary by extracting and generalizing the skills related to the setting operation. In addition, a variety of accidents often occur during the setting operation. This can lead to machine tool failure or a serious incident involving the operator. Thus, skill transfer to an unskilled operator is also important for work safety. On the other hand, augmented reality (AR) is a promising human-computer interaction technology to support skill transfer at the manufacturing site. An AR technology generally overlays virtual images on the real-world environment. In this study, an AR-based system is developed to demonstrate a recommended workpiece fixturing method in turning operations for assisting unskilled operators as the first step of skill transfer. In turning operations, two types of fixturing are usually assumed: outer diameter clamping and inner diameter clamping. The dimensions of the targeted product shape are detected, and the workpiece shape is obtained. The removal volume to be machined is calculated as the difference between the targeted product shape and workpiece shape. The fixturing method is determined to avoid contact between the removal volume and the assumed jaw. The results of a case study show that the developed AR-based system is effective for skill transfer of workpiece fixturing by demonstrating the recommended fixturing method using skills acquired from operators.
- [1] H. Kodama, T. Hirogaki, E. Aoyama, and K. Ogawa, “Investigation of End-Milling Condition Decision Methodology Based on Data Mining for Tool Catalog Database,” Int. J. Automation Technol., Vol.6, No.1, pp. 61-74, 2012.
- [2] S. Kanai, T. Shibata, and T. Kawashima, “Feature-Based 3D Process Planning for MEMS Fabrication,” Int. J. Automation Technol., Vol.8, No.3, pp. 406-419, 2014.
- [3] M. Sugi, I. Matsumura, Y. Tamura, T. Arai, and J. Ota, “Usability Analysis of Information on Worker’s Hands in Animated Assembly Manuals,” Int. J. Automation Technol., Vol.12, No.4, pp. 524-532, 2018.
- [4] A. Caggiano and L. Nele, “Artificial Neural Networks for Tool Wear Prediction Based on Sensor Fusion Monitoring of CFRP/CFRP Stack Drilling,” Int. J. Automation Technol., Vol.12, No.3, pp. 275-281, 2018.
- [5] T. Sawa, “Automating the Mold-Material Grinding Process,” Int. J. Automation Technol., Vol.13, No.6, pp. 722-727, 2019.
- [6] T. Yamamoto, R. Matsuda, M. Shindou, T. Hirogaki, and E. Aoyama, “Monitoring of Vibrations in Free-Form Surface Processing Using Ball Nose End Mill Tools with Wireless Tool Holder Systems,” Int. J. Automation Technol., Vol.15, No.3, pp. 335-342, 2021.
- [7] H. Sawada, Y. Nakado, Y. Furukawa, N. Ando, T. Okuma, H. Komoto, and K. Masui, “Digital Tools Integration and Human Resources Development for Smart Factories,” Int. J. Automation Technol., Vol.16, No.3, pp. 250-260, 2022.
- [8] A. Y. C. Nee, S. K. Ong, G. Chryssolouris, and D. Mourtzis, “Augmented Reality Applications in Design and Manufacturing,” CIRP Annals – Manufacturing Technology, Vol.61, No.2, pp. 657-679, 2012.
- [9] R. J. Chang and J. C. Jau, “Augmented Reality in Peg-in-Hole Microassembly Operations,” Int. J. Automation Technol., Vol.10, No.3, pp. 438-446, 2016.
- [10] E. Z. Barsom, M. Graafland, and M. P. Schijven, “Systematic Review on the Effectiveness of Augmented Reality Applications in Medical Training,” J. of Surgical Endoscopy, Vol.30, No.10, pp. 4174-4183, 2016.
- [11] K. Ootsubo, D. Kato, T. Kawamura, and H. Yamada, “Support System for Slope Shaping Based on a Teleoperated Construction Robot,” J. Robot. Mechatron., Vol.28, No.2, pp. 149-157, 2016.
- [12] X. Li, W. Yi, H. Chi, X. Wang, and A. P. C. Chan, “A Critical Review of Virtual and Augmented Reality (VR/AR) Applications in Construction Safety,” Automaion in Construction, Vol.86, pp. 150-162, 2018.
- [13] F. Tanaka, M. Tsuchida, and M. Onosato, “Associating 2D Sketch Information with 3D CAD Models for VR/AR Viewing During Bridge Maintenance Process,” Int. J. Automation Technol., Vol.13, No.4, pp. 482-489, 2019.
- [14] T. Nakamura, J. Kaneko, T. Abe, and K. Horio, “Developing a Support System for Loading Planning,” Int. J. Automation Technol., Vol.13, No.4, pp. 475-481, 2019.
- [15] S. Makita, T. Sasaki, and T. Urakawa, “Offline Direct Teaching for a Robotic Manipulator in the Computational Space,” Int. J. Automation Technol., Vol.15, No.2, pp. 197-205, 2021.
- [16] K. Weinert, A. Zabel, E. Ungemach, and S. Odendahl, “Improved NC Path Validation and Manipulation with Augmented Reality Methods,” Production Engineering, Vol.2, No.4, pp. 371-376, 2008.
- [17] C. Liu, S. Cao, W. Tse, and X. Xu, “Augmented Reality-assisted Intelligent Window for Cyber-Physical Machine Tools,” J. of Manufacturing Systems, Vol.44, Part 2, pp. 280-286, 2017.
- [18] C. K. Yang, Y. H. Chen, T. J. Chuang, K. Shankhwar, and S. Smith, “An Augmented Reality-Based Training System with a Natural User Interface for Manual Milling Operation,” Virtual Reality, Vol.24, Vol.3, pp. 527-539, 2020.
- [19] M. D. Do, M. Kim, D. H. Nguyen, and H. J. Choi, “Augmented-Reality-Assisted Workpiece Localization in Rod-Type Flexible Fixtures,” J. of Mechanical Science and Technology, Vol.34, No.7, pp. 3007-3013, 2020.
- [20] S. Liu, S. Lu, J. Li, X. Sun, Y. Lu, and J. Bao, “Machining Process-Oriented Monitoring Method Based on Digital Twin Via Augmented Reality,” The Int. J. of Advanced Manufacturing Technology, Vol.113, No.11, pp. 3491-3508, 2021.
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