Rigid 6-DOF parallel platform for precision 3-D micromanipulation

被引：26

作者：

Portman, VT ^{[1
]}

Sandler, BZ ^{[1
]}

Zahavi, E ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Mech Engn, Pearlstone Ctr Aeronaut Engn Studies, IL-84105 Beer Sheva, Israel

来源：

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 2001年 / 41卷 / 09期

关键词：

parallel mechanism; micromanipulation; secondary table; milling;

D O I：

10.1016/S0890-6955(01)00027-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new type of 6-DOF platform mechanism characterized by very high stiffness and a high degree of accuracy is described. Welded joints connecting the changeable links with the platform and base provide the high stiffness. Hydraulically controlled microactuators use longitudinal elastic deformations for elongation of the legs, infinitesimal kinematics of a conventional platform, the finite-elements method, and an identification procedure are used for the analysis of the mechanism. Experimental investigations of a pilot set-up of the proposed platform confirmed the predictions concerning the accuracy and stiffness of the proposed device. A practical application of the platform as a secondary table for precise machining on a CNC milling center is described. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1229 / 1250

页数：22

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