Development of a Reconfigurable Micro Machine Tool for Microfactory
Development of a Reconfigurable Micro Machine Tool for Microfactory
复制标题
DOI：
10.1109/icsma.2008.4505639
复制
发表时间：
2008-04
期刊：
影响因子：
--
通讯作者：
S. Jang;Y. Jung;Hyun-Young Hwang;Young-Hyu Choi;Jong-Kwon Park
中科院分区：
文献类型：
--
作者：
S. Jang;Y. Jung;Hyun-Young Hwang;Young-Hyu Choi;Jong-Kwon Park
最近，特别是在日本、美国和韩国，出现了一些关于微型工厂的有趣的研究。鉴于微型工厂具有柔性制造系统和/或可重构制造系统的优势，我们在微型工厂的微型机床设计中引入了模块化可重构机床结构的概念。模块化可重构机床可以通过简单地添加或更换机床单元或模块来轻松地执行不同类型的加工过程，例如铣削、车削、钻孔和/或磨削。在这项研究中，我们开发了一种面向微型工厂的可重构微型机床，它可以从铣床重构到调谐车床，反之亦然。在机床结构设计中，我们在初步设计阶段就已经研究了一种生成模块化可重构机床机床构型的新理论方法。根据我们的设计方法，我们在初步设计阶段审查了所有可行的配置后，设计了结构模块和RMT。通过使用一些模块，我们已经建立了基于RMT的具有足够刚度的微型铣床。RMT的三轴微型铣床具有300 mm×200 mm×320 mm的微型桌面尺寸，其行程为10倍10×10 mm~3。通过有限元分析和冲击锤击试验，对研制的MRMT的固有频率和动刚度等动态特性进行了分析和检验。并利用运动控制器进行了定位控制试验和切割试验。通过结构仿真、结构和模块设计、有限元分析和动态特性测试等手段，成功地研制出了适用于微型工厂的可重构铣床和车床结构。
Recently, there have been several interesting researches on the microfactory especially in Japan, U.S., and Korea. Since the microfactory possess the advantage of flexible manufacturing system and/or reconfigurable manufacturing system, we introduced the concept of modular reconfigurable machine structure in our micro machine tool design for microfactory. Modular reconfigurable machine tools can easily perform machining processes of different kinds such as milling, turning, drilling and or grinding by simply adding or exchanging machine tool units or modules. In this study, we have developed a reconfigurable micro machine tool for microfactory, which can be reconfigured from a milling machine to a tuning lathe or vice versa. In structural design of the machine tools, we already studied a new theoretical method of creating machine configurations of modular-reconfigurable machine tools (MRMT) in the preliminary design stage. According to our design methodology, we designed the structural modules and RMTs after reviewing all feasible configurations in the preliminary design stage. By using some modules, we have built RMT based the micro milling machine with enough stiffness. The 3-axis micro milling machine of RMT has a mini-desktop size of 300 mm times200 mm times320 mm and its travel volume is 10 times 10times 10 mm3. Dynamic characteristics including natural frequencies and dynamic stiffness of the developed MRMT were analyzed and examined by using F.E.M. and impact hammer test. And we carried out positioning control test and cutting test using a motion controller. Consequently, we successfully developed reconfigurable micro machine tool with reconfigurable structures of milling machine and turning machine for microfactory by means of configuration simulation, structure and module design, FE analysis, and dynamic characteristic tests such as a modal test and dynamic compliance test.