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Multi-degree-of-freedom bionic piezoelectric drive device

A bionic piezoelectric and driving device technology, applied in the direction of generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve the problem of large structural size, low positioning accuracy, and prone to crawling And other problems, to achieve the effect of stable dynamic characteristics, smooth operation, compact structure

Active Publication Date: 2011-12-21
吉林大学重庆研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-degree-of-freedom bionic piezoelectric drive device, which solves the existing problems in the prior art, such as large structural size, prone to crawling, low positioning accuracy, difficult processing, large gaps and friction, and stroke small, high cost

Method used

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Embodiment Construction

[0031] The detailed content and specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0032] See Figure 1 to Figure 9 , The multi-degree-of-freedom bionic piezoelectric drive device of the present invention includes three parts: a base shell, a stator 2, and a rotor 3. The stator 2 is divided into a three-layer structure of upper, middle, and lower stators. Flexible hinges A and B are connected. The upper stator layer and the stator middle layer are the rotary driving parts, and the stator middle layer and the stator lower layer are the linear driving parts. In the lower stator layer, four sets of linear motion piezoelectric stacks pass through the stator lower structure of the stator 2. In the middle layer structure of the stator;

[0033] The rotor 3 is divided into three layers of upper, middle and lower rotor structures. The clamping part is provided with three groups of piezoelectric stacks, respectivel...

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Abstract

The invention relates to a multi-degree-of-freedom bionic piezoelectric driver, which belongs to the field of precision machining. The multi-degree-of-freedom bionic piezoelectric driver comprises a case, a stator and a rotor, and is based on a stepping operation mode, the stator does not have embedded elements, and by utilizing the combined action of the forward thrust of piezoelectric stacks and the backward resilient force of flexible hinges, the multi-degree-of-freedom bionic piezoelectric driver realizes the forward and backward motion and axial linear motion of the rotor of the driver. In addition, in terms of the tests of micro-characteristics of materials, the driver can simultaneously carry out the nano-level elongation and torsion tests of fine materials. Based on inchworm type piezoelectric drive, the multi-degree-of-freedom bionic piezoelectric driver has high-precision positioning and repetitive positioning capability, and can be applied in the fields of ultraprecision machining machine tools, the testing of nano mechanical properties of material test specimens, microelectromechanical systems, precision optics, aeronautics and astronautics, robots and the like. The driving precision of ordinary drivers can be greatly increased, and the multi-degree-of-freedom bionic piezoelectric driver has the advantages of high displacement control precision, quick response, high driving force, low driving power, wide operating frequency, low cost, little investment, quick return, high benefit and the like.

Description

technical field [0001] The invention relates to the field of precision machining, in particular to a multi-degree-of-freedom bionic piezoelectric drive device, which can be applied to the fields of ultra-precision machining machine tools, detection of nanomechanical properties of material specimens, micro-electromechanical systems, precision optics, aerospace and robots, etc. . Background technique [0002] In recent years, with the development of science and technology, micro-nano technology has become more and more important in life sciences, microelectronics, optics, ultra-precision machinery and its manufacturing, precision measurement of medicine and health, semiconductors, biochemistry, data storage and other disciplines. Important position, micro-mechanical technology, micro-nano measurement technology, micro-nano-level positioning and driving technology has become a hot spot in the high-tech field in the world today, and various new drivers with precision driving, p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/00H02N2/02H02N2/10
Inventor 赵宏伟曲涵任露泉张鹏黄宇霆李建平黄虎王汉伟杨建波吕扬
Owner 吉林大学重庆研究院
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