| Summary: | 碩士 === 逢甲大學 === 材料與製造工程所 === 92 === Abstract
Recently there is an increasing interest in the development of high speed machine tools. One modern application of high speed machining is the using of linear motor system to drive a machine center and achieve high speed cutting performance. This thesis addresses an effective and efficient process of structural stiffness design and evaluation for horizontal machine centers. The process includes:
1. Divide the horizontal machine centers into X-axis, Y-axis, and Z-axis three modules. Build up 3D solid models of different modules by using of solid modeling computer software.
2. Setup evaluation factors for all modules, including: (a) the first mode natural frequency, (b) difference between the first and the second mode natural frequencies, (c) machining properties, and (d) assembling properties.
3. Give weighting values for each evaluation factor and obtain the optimized module assembly.
Some other expectancy problems in high speed machine tool design are also discussed in this thesis.
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