A Study on Highly Function Integrated Spindle System for Advanced FMS

先进FMS的高性能集成主轴系统研究

基本信息

批准号：
08455071
负责人：
SHINNO Hidenori
金额：
$ 4.99万
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 (B)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08455071/
关键词：
Machine Tools Flexible Manufacturing System Highly Function Integrated Spindle System Two-Layred Spindle Ultrasonic Waves In-Process Measurement Bearing Preload Joints 高度機能集積形主軸多重主軸熱変形

项目摘要

It becomes more important to realize highly function integrated spindle system for machine tool in order to develop the advanced flexible manufacturing system toward the 21st century. That kind of spindle system is characterized by higher accuracy, wider range of speed, integrated multiple-function and so on., with advent of the new manufacturing requirement. In this research, some studies which are necessary and indispensable for design of highly function integrated spindle system have been carried out. The first objective is the measurement of contact pressure of the joint between the bearing and its housing in the main spindle system. The second is how to control the due contact pressure in the machine work condition. The third is concerned with bearing preload measurement.The proposed method for contact pressure measurement using ultrasonic waves is effective even if the joint consists of cylindrical surfaces. And also, the parameter by wavelet transform of echo is significantly im … More portant for evaluating the contact pressure.The control of contact pressure has been basically possible by means of the proposed system named "Taper joint type bearing housing". It has sufficient function available for changing the contact pressure of the joint between the bearing and its housing.The bearing preload has been measured by the compressive strain of bearing collar for outer ring. The output of strain gage has significant relationship with the preload and the elongation of the spindle.A two-layred spindle system, which is basic configuration of multiple-layred type, has been proposed based on the results of these studies. The thermal behavior in the main spindle structure has been investigated to a various extent using the headstock model with a two-layred spindle, finally aiming at the proposal of the due design methodology. The basic thermal behavior and the mutural effects between inner and outer spindle units has been clarified. It is considered to be mainly influenced by the balance between heat sources in the body structure.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. Less

为了将高级柔性制造系统推向21世纪，实现高度集成的主轴系统变得越来越重要。这种主轴系统的特征是较高的准确性，更广泛的速度范围，集成的多功能等等。在这项研究中，已经进行了一些必要且必不可少的研究，这些研究已进行高度集成的纺锤体系统。第一个目标是测量主轴系统中轴承及其外壳之间的接触压力。第二个是如何控制机器工作条件下的适当接触压力。第三个与轴承预紧度的测量有关。使用超声波的接触压力测量方法也有效，即使关节由圆柱形表面组成。而且，回声的小波变换参数是显着的……更便宜地评估接触压力。基本上，通过所提出的名为“锥形关节型轴承壳”的系统可以控制接触压力。它具有足够的功能，可用于改变轴承及其外壳之间的接触压力。轴承预紧力已通过轴承粘合应力在外圈中的压缩应变进行了衡量。应变计的输出与预载术和主轴的延伸具有显着的关系。这是两层跨度系统的基本配置，该研究是基于多层型型的基础进行了提出的。使用带有两层主轴的床头库模型对主轴结构中的热行为进行了多种程度，最终针对了适当的设计方法。已经阐明了内侧和外轴单元之间的基本热行为和相互影响。它被认为主要受到人体结构中的热源之间的平衡的影响。主轴单元中的空气流动效应，尤其是使用拟议的冷却系统确定了封闭空间。在控制内主轴单元之间的热传递时，基本上可以使用这样的冷却系统来解决热变形的疗法。较少的