Optimal Structure Design Methodology for Compound Multiaxis Machine Tools – I
– Analysis of Requirements and Specifications –
Masamitsu Nakaminami*, Tsutomu Tokuma*, Toshimichi Moriwaki**, and Keiichi Nakamoto***
*Manufacturing Technology Department, MORI SEIKI CO., LTD.
201 Midai, Iga, Mie 519-1414, Japan
**Department of Industrial and Systems Engineering, Setsunan University
17-8 Ikedanaka-machi, Neyagawa, Osaka 572-8508, Japan
***Department of Mechanical Engineering, Kobe University
1-1 Rokko-dai, Nada, Kobe 657-8501, Japan
The functionality of compound multiaxis machine tools is becoming increasingly versatile as NC lathes evolve. A single compound multiaxis machine tool functions as a 2-axis NC lathe and as a 5 axis machining center. The compound multiaxis machine tool executes machining such as inclined surface and gear cutting, conventionally executed by dedicated machines with special jigs and fixtures. A survey has shown that most machining executed by conventional compound multiaxis machine tools consists of basic drilling and milling on the orthogonal plane, indicating that compound multiaxis machine tools specifications should be designed to meet these requirements. To improve competitiveness and return investment over conventional NC lathes and machining centers, productivity required for a compound multiaxis machine tool is derived based on the machining time of typical parts on conventional machines. Here, we address systematic analysis and methodology to determine compound multiaxis machine tool specifications from the viewpoints of quality and cost.
– Analysis of Requirements and Specifications –,” Int. J. Automation Technol., Vol.1, No.2, pp. 78-86, 2007.