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Bionic multi-degree of freedom precise piezoelectric driving device

A piezoelectric drive, degree of freedom technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the phenomenon of creeping, low positioning accuracy, and structural size Large and other problems, to achieve the effect of compact structure, low driving power, and accurate rotary motion

Inactive Publication Date: 2015-01-28
JILIN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a bionic multi-degree-of-freedom precision piezoelectric drive device, which solves the problems of large structural size, low positioning accuracy, prone to crawling, and difficult processing in the prior art.

Method used

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  • Bionic multi-degree of freedom precise piezoelectric driving device
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  • Bionic multi-degree of freedom precise piezoelectric driving device

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Embodiment Construction

[0024] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.

[0025] see Figure 1 to Figure 8 As shown, the bionic multi-degree-of-freedom precision piezoelectric drive device of the present invention includes two parts, the rotor 1 and the stator 2. The rotor 1 is a rotating shaft, which transitionally fits with the shaft hole in the middle of the stator 2, and its output end has three uniform Distributed threaded holes Ⅰ, Ⅱ, Ⅲ3, 4, 5 are used as power output.

[0026] see Figure 4 , Figure 6 and Figure 7 As shown, the stator 2 is divided into the upper, middle and lower three-layer structure of the stator. The three-layer structure of the stator is connected by thin-walled flexible hinges A and B. The upper layer of the stator and the middle layer of the stator are the rotating drive parts, and the middle layer of the stator and the lower layer of the stator For th...

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Abstract

The invention relates to a bionic multi-degree of freedom precise piezoelectric driving device and belongs to the precise machining field. The multi-degree of freedom precise piezoelectric driving device is formed by a rotor and a stator; the stator comprises a first layer, a second layer and a third layer which form into an integral structure through flexible hinges; a thin wall flexible hinge, a rotation driving mechanism and a straight line driving mechanism are packed inside the stator. According to the multi-degree of freedom precise piezoelectric driving device, stepping forward and reverse 360-degree continuous rotational motion and straight line motion of the rotor are achieved based on a loopworm movement principle through the forward reasoning function of piezoelectric stack, the reverse elastic function of the flexible hinges and the clamping function of the flexible hinges. The multi-degree of freedom precise piezoelectric driving device has the advantages of being compact in structure, compact, high in displacement control accuracy, rapid in response, low in driving power, wide in working frequency and high in benefit, applied to fields such as ultraprecise machine tools, micro electro mechanical systems, precision optics, aerospace and robots and wide in development prospect and application values.

Description

technical field [0001] The invention relates to the field of precision machining, in particular to a bionic multi-degree-of-freedom precision piezoelectric drive device, which can be applied to the fields of ultra-precision machining machine tools, micro-electromechanical systems, precision optics, aerospace, robots and the like. Background technique [0002] With the rapid development of science and technology today, people's research fields have expanded from macro to micro, and the requirements for precise displacement and precise positioning are increasing, especially in aerospace technology, military technology, precision machining, precision optics, semiconductor technology, In microscope technology, scanning tunneling microscope, operation and assembly of micro parts, semiconductor manufacturing equipment, optoelectronics and other high-end science and technology fields, the latest research results and application of high-end technology make precision drive and positio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/00
Inventor 赵宏伟时月刘彦超付海双金明骏杜宪成刘阳
Owner JILIN UNIV
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