Author:
Nishida Isamu, ,Shirase Keiichi
Abstract
A method for extracting the machining region from a 3D CAD model in Standard Triangulated Language (STL) format and automatically generating a tool path is proposed. First, a method is proposed for extracting the machining region and obtaining the geometrical features such as a convex or concave shape from only the 3D CAD model in STL format. The STL format uses only triangular mesh data and drops all information, which is necessary for extracting the removal volume for the machining and geometrical characteristics. Furthermore, the triangular mesh size is non-uniform. A contour line model is proposed in which the product model is minutely divided on the plane along any one axial direction and is represented by points at intervals below the indicated resolution obtained from the contour line of the cross section of the product. Subsequently, a method is proposed to determine the machining conditions for each extracted machining region and automatically generate a tool path according to the geometrical features of the machining region obtained. A machining experiment was conducted to validate the effectiveness of the proposed method. As a result of the machining experiment, it was confirmed that the tool path automatically generated from the 3D CAD model in STL format can be machined without any problems and with a practical level of accuracy.
Funder
Tateishi Science and Technology Foundation
Hyogo Prefecture COE Program
Suzuki Foundation
Mazak Foundation
Kawanishi Memorial ShinMaywa Education Foundation
Publisher
Fuji Technology Press Ltd.
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering
Reference26 articles.
1. K. Nakamoto, K. Shirase, H. Wakamatsu, A. Tsumaya, and E. Arai, “Development of Digital Copy Milling System to Realize NC Programless Machining: 3rd Report, Machining Strategy for In-Process Adaptation of Cutting Conditions,” Trans. of the Japan Society of Mechanical Engineers, Series C, Vol.69, No.677, pp. 270-277, 2003.
2. K. Shirase and K. Nakamoto, “Direct Machining Operation Performed by Autonomous NC Machine Tool Controlled by Digital Copy Milling Concept,” Trans. of the Japan Society of Mechanical Engineers, Series C, Vol.74, No.743, pp. 1901-1906, 2008.
3. K. Shirase and K. Nakamoto, “Simulation Technologies for the Development of an Autonomous and Intelligent machine Tool,” Int. J. Automation Technol., Vol.7, No.1, pp. 6-15, 2013.
4. K. Shirase, T. Kondo, M. Okamoto, H. Wakamatsu, and E. Arai, “Development of Virtual Copy Milling System to Realize NC Programless Machining: Real Time Tool Path Generation for Autonomous NC Machine Tool,” Trans. of the Japan Society of Mechanical Engineers, Series C, Vol.66, No.644, pp. 298-303, 1999.
5. D. Hamada, K. Nakamoto, T. Ishida, and Y. Takeuchi, “Development of CAPP system for multi-tasking machine tool,” Trans. of the Japan Society of Mechanical Engineers, Series C, Vol.78, No.791, pp. 2698-2709, 2012 (in Japanese).
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献