Real-Time Five-Axis Control Based on Digital Copy Milling Concept to Achieve Autonomous Milling
Keiichi Shirase* , Keiichi Nakamoto** , Eiji Arai*** , and Toshimichi Moriwaki****
*Dept. of Mechanical Engineering, Graduate School of Engineering, Kobe University, Kobe, Japan
**Dept. of Mechanical Engineering, Graduate School of Engineering, Osaka University, Osaka, Japan
***Dept. of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Osaka, Japan
****Dept. of Industrial and Systems Engineering, Faculty of Engineering, Setsunan University, Osaka, Japan
The Digital Copy Milling (DCM) was proposed to achieve autonomous milling, in which tool paths are generated in real time during milling without requiring Numerical Control (NC) programs. In the DCM, a tracing probe and a master model in conventional copy milling are represented by virtual 3D models, and cutter locations are calculated dynamically based on virtual tracing probe movement in real time. Therefore, not only feed speed, but also radial and axial depths of cut are adapted for milling process control. In addition, new tool paths are added to automatically avoid and recover from cutting troubles. In this paper, an added five-axis tool movement control of DCM demonstrated the effectiveness of the DCM concept.
-  K. Shirase, T. Kondo, M. Okamoto, H. Wakamatsu, and E. Arai, "Trial of NC Programless Milling for a Basic Autonomous CNC Machine Tool," Proc. of the 2000 JAPAN-U.S.A. Symposium on Flexible Automation, pp. 507-513, 2000.
-  K. Nakamoto, K. Shirase, H. Wakamatsu, A. Tsumaya, and E. Arai,"Feed Back Machining Control Using Digital Copy Milling System,"Proc. of the 2002 JAPAN-U.S.A. Symposium on Flexible Automation, pp. 29-35, 2002.
-  K. Shirase, T. Shimada, and K. Nakamoto, "Prototyping of Autonomous CNC Machine Tool Based on Digital Copy Milling Concept," Proceedings of the 41st CIRP Conference on Manufacturing Systems, pp. 391-394, 2008.
-  K. Morishige and Y. Takeuchi, "Strategic Tool Attitude Determination for Five-axis Control Machining Based on Configuration Space," CIRP-Journal of Manufacturing Systems, 31/3, pp. 247-252, 2003.
-  H. Suzuki, K. Yamazaki, T. Hoshi, and Y. Kuromiya, "Real TimeNumerical Control System for Metal Molds and Dies Machining (2nd Report)," J. of Japan Society for Precision Engineering, 53/12,pp. 1952-1958, 1987 (in Japanese).
-  H. Suzuki, Y. Kuroda, M. Sakamoto, and N. Motomura, "Real TimeNumerical Control System for Metal Molds and Dies Machining (3rdReport)," J. of Japan Society for Precision Engineering, 57/3, pp.473-478, 1991 (in Japanese).
-  H. Suzuki, H. Koresawa, S. Haramaki, and A. Hayashi, "Development of Real-Time Machining System for Metal Mold and Die," J. of Japan Society of Mechanical Engineers, 60/577(C), pp. 2900-2905, 1994 (in Japanese).
-  K. Iriguchi and K. Kato, "A Method for Tool Path Generation withSurface Subdivision," J. of Japan Society for Precision Engineering,64/11, pp. 1618-1622, 1998 (in Japanese).
-  FANUC Ltd., "Description Manual of FANUC Series 15-MA – Copying / Digitizing function –," B-61534/04, FANUC Ltd., 1989 (inJapanese).
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