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Study on Development of the Precise Automatic Micromanufacturing System for the Microparts made of a Ultrathin Leaf.

超薄叶片微型零件精密自动化微制造系统开发研究。

基本信息

批准号：
02650179
负责人：
KOIZUMI Kunio
金额：
$ 0.96万
依托单位：
Toyama University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

项目摘要

This research analytically and experimentally deals with the problem on development of micromechanical devices in the precision microparts manufacturing system. One of the mechanisms is the microhandling and feeding device such as a flexible finger constituted by a hooked bimorph type piezoelectric member with a rigid joint. The another one is the microactuating mechanism based on a lever and toggle-joint combination mechanism which is constituted by bimorph type piezo members connected by 4 elastic joints and 2 multilayer type piezo actuators. The actuator is available to precision workings, punching, hammering and press, or cramp of microparts for precision positioning. There are many merits, for example, it has variable output force-displacement characteristics by bending of the piezo members which are applied the independent voltage, respectively.The results obtained are as follows :1) Microhadling and feeding devices(a) Feeding and handling abilities are not influenced very much to its attaching posture, then a flexible constitution of the system is realizable.(b) When the axial direction of the fixed member approaches the feeding direction, the feeding force increases and the feeding distance decreases.(c) When the free member approaches perpendicularly to the feeding plane, the maximum free moved distance and the feeding distance increase.2) Micro actuating mechanism(a) The attaching angle of the lever member is available to set 90ﾟ.(b) There is the optimum pole combination of the applied voltages, The bending moment acted in the lever member makes to return the input point of the main actuator to the original position. The moment generated in the toggle-joint member makes to boost the bending.(c) There is the optimum voltage in which displacement of the input point does not cause. The miniature system is more and more realizable.

本文对精密微零件制造系统中微机械器件的开发问题进行了分析和实验研究。其中一种机构是由带有刚性接头的钩形双晶型压电构件构成的柔性手指等微处理和馈送装置。另一种微作动机构是由4个弹性接头连接的双晶片型压电构件和2个多层压电作动器组成的基于杠杆和切换接头组合机构。执行器可用于精密工作，冲孔，锤击和压制，或微型零件的精密定位痉挛。该方法有许多优点，例如，通过分别施加独立电压的压电元件的弯曲，具有可变的输出力-位移特性。结果表明：1)微搬运和进给装置(a)进给和搬运能力对其附着姿态影响不大，实现了系统的柔性构成。(b)当固定构件轴向接近进给方向时，进给力增大，进给距离减小。(c)当自由构件垂直接近进给平面时，最大自由移动距离和进给距离增大。2)微作动机构(a)杠杆构件的附着角度可设定90瓣。(b)施加的电压有最佳的极组合，在杠杆构件中作用的弯矩使得主执行器的输入点返回到原始位置。在铰接构件中产生的力矩有助于提高弯曲强度。(c)存在输入点位移不引起的最佳电压。微型系统的可实现性越来越强。