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Completely flexible three-freedom miniature vibration exciter

A fully flexible, degree-of-freedom technology, applied in the direction of fluid using vibration, can solve problems such as low accuracy, micro-miniature mechanical vibration problems affecting performance, etc., to achieve rapid response, reduced process complexity, and high motion accuracy.

Inactive Publication Date: 2006-04-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional vibration excitation devices can only be applied to the vibration test of relatively large-scale machinery, and the accuracy is not high
The miniaturization of machinery, especially the development of miniaturization has become an inevitable trend, and the vibration problem related to micro-miniature machinery is one of the main problems affecting its performance, but there is no correlation with the micro-vibration device used for vibration testing. Patent Introduction

Method used

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  • Completely flexible three-freedom miniature vibration exciter
  • Completely flexible three-freedom miniature vibration exciter
  • Completely flexible three-freedom miniature vibration exciter

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Experimental program
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Embodiment Construction

[0016] Such as figure 1 As shown, Embodiment 1 is a fully flexible three-translation micro-excitation table, and the three-translation parallel mechanism of its main body is composed of three branches 1, 2, and 3 with the same structure (similar) plus two platforms (the lower platform is a static platform, and the upper platform is a static platform. The platform is a three-translation parallel mechanism composed of a moving platform). The three branches 1, 2 and 3 are composed of three flexible rotating pairs and a flexible moving pair. Among them, branch 1 is perpendicular to branches 2 and 3, and branch 2 is parallel to branch 3. Mobile pair D in each branch 1 or D 2 or D 3 The place (for the P pair) is a parallelogram mechanism (4R mechanism), the direction of the revolving pair in the parallelogram mechanism is respectively with the A in the same branch 1 , B 1 、C 1 or A 2 , B 2 、C 2 or A 3 , B 3 、C 3 The directions of the three revolving pairs at the positio...

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Abstract

A fully flexible three-degree-of-freedom micro-excitation table device, the main mechanism of the three-translation micro-excitation table device is a miniature fully flexible three-translation parallel mechanism. It consists of three flexible branches and two platforms to form a three-translation parallel mechanism, an integral flexible rotating pair, and a parallelogram to form a flexible moving pair, and there are three piezoelectric ceramic drive sources at the θ1, θ2, and θ3 positions of the three branches. By controlling the movement of different driving sources, the excitation of micro-regions in one-dimensional, two-dimensional or three-dimensional translation directions is realized.

Description

Technical field [0001] The invention relates to mechanical components, in particular to a kind of fully flexible three-degree-of-freedom micro-vibration table using a fully-flexible three-degree-of-freedom parallel mechanism to press a piezoelectric ceramic drive source, which can be applied to fields such as vibration testing of micro-machines. Background technique [0002] Micro-satellites, micro-engines, micro-robots, micro-manipulators, micro-positioning devices and other micro-machines are generally small in size, high in precision, poor in rigidity, and very difficult to process and measure. At the same time, it is even more difficult to test their overall performance after assembly. Since the static and dynamic characteristics of these micro-machines directly affect their performance, the performance testing methods and equipment of micro-machines have attracted great attention. Most of the traditional vibration excitation devices can only be applied to the vibration ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/06
Inventor 杨启志马履中尹小琴
Owner JIANGSU UNIV
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