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Development of System Machine with Multiple-Layred Spindle System

多层主轴系统系统机床的研制

基本信息

批准号：
07555036
负责人：
ITO Yoshimi
金额：
$ 9.34万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555036/
关键词：
Multiple-Layred Spindle System Machine Production System flexible Manufacturing Cell Cooling Effects of Air Flow Thermal Deformation Machine Tools Spindle System Supported by Rolling Bearings without Inner Ring FMS 複合加工

项目摘要

It is basiccally important to realize advanced system machine (machine tool compatible with manufacturing system) with higher accuracy, wider range of speed, integrated multiple-function and so on., with advent of the new manufacturing requirement. The development of main spindle structure suitable for the system machine has recently become necessary and indispensable. It can be pointed out that one of such novel spindle structures is of multiple-layred and independent driving type.In this research project, therefore, a two-layred spindle system, which is basic configuration of multiple-layred type, has been proposed. The thermal behavior in the main spindle structure has been investigated to a various extent using the headstock model with a two-layred spindle supported by rolling bearings, finally aiming at the proposal of the due design methodology. The basic thermal behavior has been clarified, and also the mutural effects between inner and outer spindle units has been pointed out. It is considered to be mainly influenced by the balance between heat sources within them.The cooling effects of air flow in the spindle unit, especially the enclosed space has been ascertained using the proposed cooling system. The remedy of thermal deformation is basically possible using such a cooling system in the control of the heat transfer between the inner and outer spindle units.The thermal behavior of multiple-layred spindle system is furthermore represented with the lumped-heat-capacity method and this representation is proven as be effective when investigating the qualitative evaluation of the mutual effects in the system.The spindle system supported by rolling bearings without inner ring has been proposed aiming at the simplification of multiple-layred structure. From the experimental results for investigating static and dynamic behavior of the spindle structure as a whole, it has satisfactory performances and is applicable to the multiple-layred spindle system.

实现高精度、宽调速范围、多功能一体化的先进系统机床（与制造系统相适应的机床）具有根本性的重要意义。随着新的制造要求的出现。开发适合于系统机床的主轴结构近年来已成为必要和必不可少的。可以指出的是，这种新颖的主轴结构之一是多层独立驱动型，因此，在本研究项目中，双层主轴系统，这是多层型的基本配置，已被提出。采用双层滚动轴承主轴箱模型，对主轴箱结构的热行为进行了不同程度的研究，并提出了相应的设计方法。阐明了基本的热行为，指出了内、外主轴单元之间的相互影响。它被认为是主要影响的热源之间的平衡，在主轴单元，特别是封闭空间的空气流的冷却效果已被确定使用建议的冷却系统。利用这种冷却系统控制内外主轴单元之间的传热，基本上可以消除热变形。在对系统中的相互影响进行定性评价时，这种表示方法被证明是有效的提出了一种无内环的多层结构，旨在简化多层结构。从主轴结构整体的静态和动态特性的实验结果来看，它具有令人满意的性能，适用于多层主轴系统。