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Multi-degree-of-freedom bionic piezoelectric driver

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

Active Publication Date: 2013-10-09
吉林大学重庆研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 of the present invention and its specific implementation 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 three layers of upper, middle, and lower layers of the stator, and the three layers of the stator are separated by a thin wall The flexible hinges A and B are connected, the upper stator and the middle stator are the rotary drive parts, the middle stator and the lower stator are the linear drive parts, and four sets of linear motion piezoelectric stacks are set in the lower stator to directly act on the stator lower structure passing through the stator 2. In the middle layer structure of the stator;

[0033] The rotor 3 is divided into upper, middle and lower layers of the rotor, and the clamping part i...

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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 Patents(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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