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Double-stator fixed precision piezoelectric stick-slip linear motor and its driving method

A linear motor and fixed technology, applied in the field of micro-nano precision drive and positioning, can solve the problems of poor motion stability, complex structure, small load output, etc., achieve strong load capacity, reduce displacement return rate, and reduce frictional resistance Effect

Active Publication Date: 2020-06-02
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of complex structure, small load output and poor motion stability in traditional drive motors, the present invention discloses a double-stator fixed precision piezoelectric stick-slip linear motor and its driving method

Method used

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  • Double-stator fixed precision piezoelectric stick-slip linear motor and its driving method
  • Double-stator fixed precision piezoelectric stick-slip linear motor and its driving method
  • Double-stator fixed precision piezoelectric stick-slip linear motor and its driving method

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specific Embodiment approach 1

[0028] Specific implementation mode one: combine Figure 1~Figure 8 Describe this embodiment. This embodiment provides a specific implementation of a double-stator fixed precision piezoelectric stick-slip linear motor. The specific implementation of the double-stator fixed precision piezoelectric stick-slip linear motor is expressed as follows:

[0029] The double-stator fixed precision piezoelectric stick-slip linear motor consists of a wedge-shaped stator 1 , a double-rail mover 2 , a sliding boss 3 , a loading device 4 and a base 5 .

[0030]The wedge-shaped stator 1 includes a piezoelectric stack 1-1, a square gasket 1-2, a hinge fixing bolt 1-3, a horizontal rhombic hinge 1-4 and a pre-tightening bolt 1-5. The square washer 1-2 and the pre-tightening bolt 1-5 fix the piezoelectric stack 1-1 in the horizontal diamond structure hinge 1-4. The piezoelectric stack 1-1 can be a product of PI or NEC. The square spacer 1-2 is made of tungsten steel, and its purpose is to prote...

specific Embodiment approach 2

[0035] Specific implementation mode two: combination Figure 9~10 To illustrate this embodiment, this embodiment proposes a specific implementation of a dual-stator fixed precision piezoelectric stick-slip linear motor driving method. The dual-stator fixed precision piezoelectric stick-slip linear motor driving method is expressed as follows:

[0036] The driving method of double-stator fixed precision piezoelectric stick-slip linear motor can be divided into output enhancement type and motion emergency stop type. The main reason is that the double-stator fixed precision piezoelectric stick-slip linear motor adopts wedge-shaped motion conversion beam 1-4 The -6 structure makes the wedge-shaped stator 1 unevenly distributed along the axial direction and produces lateral displacement, and adjusts the positive contact pressure between the wedge-shaped stator 1 and the double-rail type mover 2, thereby regulating the wedge-shaped stator 1 and the double-rail At the same time, unde...

specific Embodiment approach 3

[0060] Specific implementation mode three: combination Figure 9 , 11 , 12 Describe this embodiment. This embodiment proposes a specific implementation of a double-stator fixed precision piezoelectric stick-slip linear motor driving method with wedge-shaped stators installed back-to-back. The driving method of fixed stator precision piezoelectric stick-slip linear motor is expressed as follows:

[0061] The driving method of the double-stator fixed precision piezoelectric stick-slip linear motor with inclined wedge-shaped stator 1 back-to-back installation can be divided into output enhancement type and motion emergency stop type, mainly the double-stator fixed precision piezoelectric with the inclined wedge-shaped stator back-to-back installation The stick-slip linear motor adopts a wedge-shaped motion conversion beam 1-4-6 structure, which makes the axial stiffness distribution of the wedge-shaped stator 1 uneven and produces lateral displacement, and adjusts the contact be...

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Abstract

The invention relates to a double-stator fixed precision piezoelectric stick-sliding linear motor and driving method thereof, in order to solve the technical problems of small output thrust, short stroke an low precision caused by adopting single stator driving. The invention comprises an inclined wedge-shaped stator, a double-guide rail type mover, a sliding lug boss, a loading device and a base.The said inclined wedge-shaped stator adjusts the contact positive pressure between the inclined wedge-shaped rotor and the double-guide-rail type rotor by generating lateral displacement so as to realize the comprehensive regulation of the friction force; meanwhile, the invention drives the inclined wedge-shaped stator by the combination of different asymmetrical electric signals, so that various driving modes such as the output reinforced type and the motion quenching type can be acheived. The invention has the characteristics of simple structure, strong loading capacity, stable motion andthe like, and has good application prospects in the field of micro-nano precise driving technology such as optical fiber optics, semiconductor processing and the like.

Description

technical field [0001] The invention relates to a double-stator fixed precision piezoelectric stick-slip linear motor and a driving method thereof, belonging to the technical field of micro-nano precision driving and positioning. Background technique [0002] Due to the rapid development of micro-nano technology, traditional macroscopic large-scale driving devices, such as ordinary motors, gear transmissions, screw nuts, worm gears, etc., have been difficult to meet the precision requirements of modern technology. All kinds of precision and ultra-precision machining and measurement technology, micro-electro-mechanical systems, precision optics, semiconductor manufacturing, modern medicine and biogenetic engineering, aerospace, robotics, military technology and other high-end scientific and technological fields are in urgent need of sub-micron, micro / Nanoscale precision drive motors. The discovery of the inverse piezoelectric effect of piezoelectric materials and the emerge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/04H02N2/06
CPCH02N2/04H02N2/062
Inventor 程廷海杨伟雄卢晓晖唐晚静杨晨邢辉达张智威
Owner CHANGCHUN UNIV OF TECH
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