Bidirectional interlocking type piezoelectric stick-slip driving device and excitation method thereof

A driving device and two-way interlocking technology, which is applied to piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problems of poor bidirectional output performance and achieve low bidirectional interference , reduce displacement retreat, increase the effect of friction driving force

Active Publication Date: 2019-11-19
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the technical problems of existing piezoelectric stick-slip driving devices such as poor bidirectional output pe

Method used

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  • Bidirectional interlocking type piezoelectric stick-slip driving device and excitation method thereof
  • Bidirectional interlocking type piezoelectric stick-slip driving device and excitation method thereof
  • Bidirectional interlocking type piezoelectric stick-slip driving device and excitation method thereof

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specific Embodiment approach 1

[0040] Specific implementation mode one: combine Figure 1~Figure 16 To illustrate this embodiment, this embodiment provides a specific implementation of a two-way interlocking piezoelectric stick-slip driving device. The specific implementation of the two-way interlocking piezoelectric stick-slip driving device is expressed as follows:

[0041] The two-way interlocking piezoelectric stick-slip driving device is composed of a sliding base 1, a sliding assembly 2 and a driving assembly 3; wherein, the driving assembly 3 is installed on the sliding base 1, and the sliding assembly 2 is installed On the sliding base 1 and in contact with the drive assembly 3 .

[0042] The sliding base 1 includes the inner surface of the base 1-1, the drive component installation threaded hole I1-2, the dovetail sliding boss I1-3, the drive component installation screw hole II1-4 and the dovetail sliding boss II1-5; , the dovetail sliding boss I1-3 and the dovetail sliding boss II1-5 are connect...

specific Embodiment approach 2

[0051] Specific implementation mode two: combination Figure 17 To illustrate this embodiment, this embodiment proposes a specific implementation of an excitation method for a two-way interlocking piezoelectric stick-slip driving device, and the excitation method for a two-way interlocking piezoelectric stick-slip driving device is expressed as follows:

[0052] In the excitation method, a double excitation electric signal group is adopted, the excitation electric signal A is a positive sawtooth wave electric signal, and the excitation electric signal B is a negative sawtooth electric signal. When the excitation electric signal A and the excitation electric signal B are respectively passed into the piezoelectric stack When Ⅰ3-3 and piezoelectric stack Ⅱ3-7:

[0053] t 1 ~t 2 Stage: The excitation electric signal A is a slow rising stage, which makes the piezoelectric stack Ⅰ3-3 slowly elongate; the excitation electric signal B is a slow falling stage, which makes the piezoel...

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Abstract

The invention relates to a bidirectional interlocking type piezoelectric stick-slip driving device and an excitation method thereof. The invention aims to solve the technical problem of the poor bidirectional output performance of an existing piezoelectric stick-slip drive device. The device of the invention is composed of a sliding base, a sliding assembly and a driving assembly; the driving assembly is installed on the sliding base; and the sliding assembly is installed on the sliding base and contacts with the driving assembly. According to the bidirectional interlocking type piezoelectricstick-slip driving device and the excitation method thereof of the invention, a parallel double-clamping hinge is adopted; the comprehensive regulation of the friction force of the piezoelectric stick-slip driving device in a driving process is realized on the basis of a rhombus contraction and stretch characteristic; two rhombus hinges in central symmetry form a parallel interlocking type hinge structure; with the excitation of double-excitation electric signal groups realized, interference influence on the movement of the sliding assembly during the driving of the driving assembly is reduced, so that displacement backward movement is reduced, and therefore, the mechanical output performance of the bidirectional driving device is improved. The device has the advantages of large output thrust, high precision, small bidirectional interference and the like, and can be widely applied to the technical field of micro-nano precision driving and positioning.

Description

technical field [0001] The invention relates to a two-way interlocking piezoelectric stick-slip drive device and an excitation method thereof, belonging to the technical field of micro-nano precision drive and positioning. Background technique [0002] Piezoelectric drive technology is a new type of drive technology that uses the inverse piezoelectric effect of piezoelectric materials to convert electrical energy into mechanical energy. Piezoelectric drive devices are driven by the above principles. At present, most precision positioning and micro-nano operations This is achieved by means of piezoelectric drives. Due to the remarkable advantages of high output precision, fast response speed, and strong anti-electromagnetic interference ability of the piezoelectric drive device, it has developed into one of the mainstream technologies for high-precision positioning and material micro-nano mechanical performance testing. [0003] Piezoelectric stick-slip actuators are widely ...

Claims

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Application Information

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IPC IPC(8): H02N2/04H02N2/06
CPCH02N2/04H02N2/062
Inventor 程廷海张晓松乔广达于洋卢晓晖高强王铮王宇琦
Owner CHANGCHUN UNIV OF TECH
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