Piezoelectric actuation linear moving platform and working method thereof

A linear motion, piezoelectric actuation technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem of poor real-time platform, linear motion positioning accuracy or speed Low problems, to achieve the effect of simple mechanism, high precision and good controllability

Active Publication Date: 2021-03-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional motion platform is mainly driven by an electromagnetic motor. This driving method is mature in technology and stable in performance, but inevitably there are many intermediate motion conversion links and elastic deformation, which makes the real-time performance of the platform poor, and the linear motion that can be realized low positioning accuracy or speed

Method used

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  • Piezoelectric actuation linear moving platform and working method thereof
  • Piezoelectric actuation linear moving platform and working method thereof
  • Piezoelectric actuation linear moving platform and working method thereof

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0035] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0036] Such as figure 1 As shown, the present invention discloses a piezoelectric actuated linear moving platform, which includes a piezoelectric vibrator, a working substrate, first to second baffles, first to second springs, and first to fourth positioning bolts.

[0037] Such as figure 2 As shown, the piezoelectric vibrator includes a metal base and first to fourth piezoelectric ceramic sheets.

[0038] Such as image 3 As shown, the metal base is in the shape of a rhombus, inc...

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Abstract

The invention discloses a piezoelectric actuation linear moving platform and a working method thereof. The piezoelectric actuation linear moving platform comprises a piezoelectric vibrator, a workingsubstrate, two baffles, two springs and four positioning bolts. The piezoelectric vibrator comprises a metal base body and four piezoelectric ceramic pieces. The metal base body is rhombic and comprises two actuating heads and four vibrating beams. And the four piezoelectric ceramic pieces are correspondingly distributed on the four vibration beams and are polarized along the thickness direction.The four positioning bolts abut against the working base plate, the two baffles are driven by the piezoelectric vibrators to drive the working base plate to move horizontally, obvious advantages are achieved in the aspects of positioning precision, response speed and the like, and the beneficial effects of being simple in mechanism, good in controllability and high in precision are achieved.

Description

technical field [0001] The invention relates to the fields of piezoelectric actuation and ultrasonic motors, in particular to a piezoelectric actuation linear moving platform and a working method thereof. Background technique [0002] With the rapid development of precision engineering, the modern manufacturing field puts forward higher and higher requirements for the precision, speed and stroke of the precision motion platform, and its positioning accuracy and stroke range directly affect the precision and breadth of production and processing. The traditional motion platform is mainly driven by an electromagnetic motor. This driving method is mature in technology and stable in performance, but inevitably there are many intermediate motion conversion links and elastic deformation, which makes the real-time performance of the platform poor, and the linear motion that can be realized The positioning accuracy or speed is low. Contents of the invention [0003] The technical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/04
CPCH02N2/04
Inventor 赵恒金家楣刘瑞王亮张安悌
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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