Orthographic double-driving-type precise piezoelectric stick-slip linear motor and driving method thereof

A linear motor, dual-drive technology, applied in piezoelectric/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., can solve the problems of low precision, small output thrust, short stroke, etc. Achieve the effects of high precision, large output thrust and reduced frictional resistance

Inactive Publication Date: 2018-06-22
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of the existing piezoelectric stick-slip linear motors such as small output thrust, short stroke, and low precision due to single-stator drive, the present invention discloses an orthogonal double-drive precision piezoelectric stick-slip linear motor and its its driving method

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  • Orthographic double-driving-type precise piezoelectric stick-slip linear motor and driving method thereof
  • Orthographic double-driving-type precise piezoelectric stick-slip linear motor and driving method thereof
  • Orthographic double-driving-type precise piezoelectric stick-slip linear motor and driving method thereof

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specific Embodiment approach 1

[0034] Specific implementation mode one: combine Figure 1~Figure 11 Describe this embodiment. This embodiment provides a specific implementation of an orthogonal dual-drive precision piezoelectric stick-slip linear motor. The specific implementation of the orthogonal dual-drive precision piezoelectric stick-slip linear motor is described as follows:

[0035] The oblique trapezoidal orthogonal dual-drive piezoelectric stick-slip linear motor consists of an oblique trapezoidal orthogonal drive assembly 1, a mover assembly 2, a base 3, a displacement regulator 4, a dovetail platform 5 and a dovetail platform limit bar 6 .

[0036] The inclined trapezoidal orthogonal drive assembly 1 includes a gasket 1-1, a fixing bolt 1-2, a pre-tightening screw 1-3, a diamond-shaped vertical hinge 1-4 and a piezoelectric stack 1-5. The gasket 1-1 and the pre-tightening screw 1-3 fix the piezoelectric stack 1-5 in the diamond-shaped vertical hinge 1-4. The piezoelectric stacks 1-5 can be pro...

specific Embodiment approach 2

[0042] Specific implementation mode two: combination Figure 12~13 Describe this embodiment. This embodiment proposes a specific implementation of an orthogonal dual-drive precision piezoelectric stick-slip linear motor drive method. The expression of the orthogonal dual-drive precision piezoelectric stick-slip linear motor drive method is as follows:

[0043] The driving method of the orthogonal double-drive precision piezoelectric stick-slip linear motor can be divided into output enhancement type and motion emergency stop type, mainly because the orthogonal double-drive precision piezoelectric stick-slip linear motor adopts an inclined trapezoidal motion conversion beam 1 -4-8 structure, so that the oblique trapezoidal orthogonal drive assembly 1 is unevenly distributed along the axial direction to generate lateral displacement, adjust the normal contact pressure between the oblique trapezoidal orthogonal drive assembly 1 and the mover assembly 2, and then adjust the obliqu...

specific Embodiment approach 3

[0067] Specific implementation mode three: combination Figure 12 , 14 , 15 This embodiment is described. This embodiment proposes a specific implementation of an orthogonal double-drive precision piezoelectric stick-slip linear motor driving method in which an oblique trapezoidal orthogonal drive assembly 1 is installed back to back. The driving method of the orthogonal dual-drive precision piezoelectric stick-slip linear motor with back-to-back installation of the cross-drive components is expressed as follows:

[0068] The driving method of the orthogonal double-drive precision piezoelectric stick-slip linear motor installed back to back can be divided into output enhancement type and motion emergency stop type, mainly because the oblique trapezoidal orthogonal drive assembly is installed back to back Orthogonal double-drive precision piezoelectric stick-slip linear motor adopts a 1-4-8 structure of oblique trapezoidal motion conversion beam, which makes the oblique trapez...

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Abstract

The invention relates to an orthographic double-driving-type precise piezoelectric stick-slip linear motor and a driving method thereof. The technical problems are solved that since single-stator driving is adopted for an existing piezoelectric stick-slip linear motor, the output thrust is small, the stroke is short, and the precision is low. The motor comprises an inclined trapezoidal orthographic driving assembly, a rotor assembly, a base, a displacement adjuster, a dovetail platform and dovetail platform limit strips. The inclined trapezoidal orthographic driving assembly generates lateraldisplacement, the contact positive pressure between the inclined trapezoidal orthographic driving assembly and the rotor assembly is adjusted, and comprehensive regulation and control for the frictionforce are achieved; meanwhile, the inclined trapezoidal orthographic driving assembly is driven through different combinations of asymmetric electric signals, and multiple kinds of driving modes suchas output reinforcement type and motion emergent-stopping type can be achieved. The orthographic double-driving-type precise piezoelectric stick-slip linear motor has the advantages of large output thrust, high precision, long stroke and the like and has great application prospects in micro-nano precise driving and poisoning fields such as processing of optical precise instruments and semiconductors.

Description

technical field [0001] The invention relates to an orthogonal dual-drive precision piezoelectric stick-slip linear motor and a drive method thereof, belonging to the technical field of micro-nano precision drive and positioning. Background technique [0002] Piezoelectric motor is a new type of driving device that uses the inverse piezoelectric effect of piezoelectric materials to achieve precise output motion. Piezoelectric elements have the advantages of good stability, rapid response, precise positioning, high energy conversion rate, and large driving force. Commonly used piezoelectric materials are suitable for being processed into various shapes, and multilayer piezoelectric elements manufactured by special processes The piezoelectric stack composed of ceramic sheets has very good performance, so it is suitable to be applied in the field of ultra-precise positioning technology. Due to the many advantages of piezoelectric drive, piezoelectric precision micro-drive techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/04H02N2/06
CPCH02N2/04H02N2/062
Inventor 程廷海柳虹亮唐晚静宁鹏陈昭旭房彦旭
Owner CHANGCHUN UNIV OF TECH
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