Stepping type actuator driven by double piezoelectric stacks

A step-by-step, actuator technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the problems of complex process and many steps, etc.

Inactive Publication Date: 2013-09-25
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, stepping actuators require three independent driving components to realize clamping and stepping during stepping, and the steps are many and the process is complicated

Method used

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  • Stepping type actuator driven by double piezoelectric stacks
  • Stepping type actuator driven by double piezoelectric stacks

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0012] Such as figure 1 As shown, the present invention is a stepping actuator driven by a bimorph stack, and the stepping actuator is placed between the upper and lower slide rails 8, including a first clamping ring 3, through an elastic connector 4 and a second A second clamping ring 6 connected to a clamping ring 3, the first actuating ring 2 fixed in the first clamping ring 3, the first piezoelectric stack 1 nested in the first actuating ring 2, fixed The second actuating ring 5 in the second clamping ring 6 is nested in the second piezoelectric stack 7 in the second actuating ring 5 .

[0013] As a preferred embodiment of the present invention, the first actuating ring 2, the first clamping ring 3, the elastic connector 4, the second actuating ring 5 and the second clamping ring 6 can adopt precision wire cutting machine tools ...

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Abstract

A stepping type actuator driven by double piezoelectric stacks is placed between an upper slide rail and a lower slide rail and comprises a first clamping ring, a second clamping ring connected with the first clamping ring through an elastic connecting piece, a first actuation ring fixed in the first clamping ring, a first piezoelectric stack embedded in the first actuation ring, a second actuation ring fixed in the second clamping ring and a second piezoelectric stack embedded in the second actuation ring. The first actuation ring, the first clamping ring, the elastic connecting piece, the second actuation ring and the second clamping ring are integrally machined through a slow-walking wire cutting machine tool. According to the stepping type actuator, actuation steps are reduced, and the stepping type actuator has the advantages of being convenient to machine, simple in structure, small in size and low in weight.

Description

technical field [0001] The invention relates to a piezoelectric actuator, in particular to a stepping actuator driven by a double piezoelectric stack. Background technique [0002] Due to the increasing maturity of piezoelectric drive technology, piezoelectric actuators are playing an increasingly important role in aerospace, medical, national defense and other fields. With the development of active control technology, the requirements for piezoelectric actuators are getting higher and higher. Because stepping piezoelectric actuators can have a large stroke and high displacement output resolution, they are widely used in widely. At present, stepping actuators require three independent driving components to realize clamping and stepping during stepping, and the steps are many and the process is complicated. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, the object of the present invention is to provide a stepping actuat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/02
Inventor 敬子建徐明龙苗维凯
Owner XI AN JIAOTONG UNIV
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