Inchworm-type rotary piezoelectric actuation platform

A rotary pressure, electric drive technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the problem of poor work reliability, complex drive platform structure, and high manufacturing cost problem, to achieve the effect of high work reliability, stable and reliable movement process, and improved work reliability

Active Publication Date: 2017-08-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an inchworm-type rotary piezoelectric drive platform, which solves the problems of complex structure, high manufacturing cost and poor working reliability of the current drive platform.

Method used

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  • Inchworm-type rotary piezoelectric actuation platform
  • Inchworm-type rotary piezoelectric actuation platform
  • Inchworm-type rotary piezoelectric actuation platform

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Embodiment Construction

[0018] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.

[0019] see Figure 1 to Figure 3 As shown, in the inchworm-type rotary piezoelectric drive platform of the present invention, the rotor unit is a cylinder for outputting rotational displacement; the upper clamping unit consists of a piezoelectric stack, an upper stator, an upper bridge-type flexible hinge amplification structure, and an upper lever It is composed of flexible hinge amplifying structure and pre-tightening bolts. When the piezoelectric stack is extended, the upper layer of the stator can clamp the rotor; the lower clamping unit has the same structure as the upper clamping unit. The flexible hinge amplifying structure, the lower lever type flexible hinge amplifying structure and pre-tightening bolts, when the piezoelectric stack stretches, the lower layer of the stator can clamp the rotor; the driving...

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Abstract

The invention relates to an inchworm-type rotary piezoelectric actuation platform and belongs to the field of precision actuation. A rotor unit is a cylinder for outputting rotary displacement. An upper clamping unit is composed of a piezoelectric stack, a stator upper layer equipped with a three-jaw self-centering structure flexible hinge, and a preloading bolt. When elongating, the piezoelectric stack can enable the stator upper layer to clamp a rotor. A lower clamping unit is the same as the upper clamping unit in structure, and is composed of a piezoelectric stack, a stator lower layer equipped with a three-jaw self-centering structure flexible hinge, and a preloading bolt. When elongating, the piezoelectric stack can enable the stator lower layer to clamp the rotor. A driving unit is composed of a piezoelectric stack and an auxiliary driving block, and can achieve the step motion of the rotor. The stator upper layer and the stator lower layer are connected through a straight-type flexible hinge. The inchworm-type rotary piezoelectric actuation platform is simple in structure, low in cost, easy to control, stable and reliable in operation, and large in stroke.

Description

technical field [0001] The invention relates to the field of precision driving, in particular to an inchworm-type rotary piezoelectric driving platform. It can be used in precision and ultra-precision machining, micro-electro-mechanical systems, biomedical engineering, aerospace, large-scale and ultra-large-scale integrated circuit manufacturing and other fields. Background technique [0002] The exploration of the microscopic field has long been a research hotspot in modern science and technology, and devices based on this type of research are constantly being introduced to meet the industry's ever-increasing requirements for precise positioning and miniaturized structures. Especially in the fields of precision and ultra-precision machining, micro-electro-mechanical systems, and micro-robots, traditional drive and transmission devices such as ordinary motors and gear transmissions cannot meet the accuracy requirements. Due to the advantages of small size, high precision, f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/10H02N2/12H02N2/14
CPCH02N2/101H02N2/12H02N2/14
Inventor 赵宏伟王吉如范尊强马筱溪周明星赵丹吴迪
Owner JILIN UNIV
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