Miniature manipulate with piezoelectric-type flexible drive and adjustable range

A micro-clamping and gripping hand technology, which is applied in the field of piezoelectric flexible drive amplifying and adjustable range micro-grip hands, can solve the requirements that cannot meet the operation requirements of various micro-devices, and the interchangeability and compatibility of the clamping system Insufficient, inability to operate micro-devices, etc., to achieve the effect of ensuring miniaturization, strong bearing capacity, and small operating space

Inactive Publication Date: 2002-10-30
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, a certain amount of experimental research work has been done in this area at home and abroad, and a variety of micro grippers have been developed, but none of them are ideal. The device is operated, the interchangeability and compatibility of the clamping system are insufficient, and the scope of application is very narrow
Traditional micro grippers driven by piezoelectric elements are usually limited by the size of piezoelectric elements, making it difficult to make them very small, and the deformation caused by the inverse piezoelectric effect of piezoelectric elements is usually only a few to ten microns, which cannot meet the needs of the microscopic field. The requirements for the operation of various micro devices limit its application range to some extent

Method used

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  • Miniature manipulate with piezoelectric-type flexible drive and adjustable range
  • Miniature manipulate with piezoelectric-type flexible drive and adjustable range
  • Miniature manipulate with piezoelectric-type flexible drive and adjustable range

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Embodiment Construction

[0012] Such as figure 1 As shown, the piezoelectric flexible drive amplification adjustable range micro gripping hand designed by the present invention includes a micro actuator 2 , a flexible amplification mechanism 3 , a size preset mechanism 4 and a micro gripping hand 5 . The flexible amplifying mechanism is fixed on the mounting plate 1, the size pre-adjusting mechanism 4 is fixed on the upper part of the flexible amplifying mechanism 3, and the micro-clamping hand 5 is placed on the upper part of the size pre-adjusting mechanism 4. The upper part of the micro clamping hand is a jaw 54, and the clamping hand of the lower part is hinged with the fixed rod 53 inserted in the screw pair 41 of the size presetting mechanism 4 through a flexible hinge 52. The pulling rod 53 that is positioned at the lower part of the slightly clamping hand and is hinged with the clamping hand is relatively fixed with one end of the elastic pull rod 6 in the size preset mechanism. The other end...

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Abstract

A piezoelectric clamping micromanipulator with flexible drive and amplification and adjustable range is composed of microactuator, flexible multiplying mechanism, size pre-regulator, and clamping micromanipulator. Its advantages are compact structure, high reliability, and low non-linear error.

Description

technical field [0001] The invention relates to a piezoelectric flexible drive amplification and adjustable range micro gripping hand, which belongs to the technical field of micro-electromechanical systems (MEMS) and can be applied to micro-operation technical fields such as micro-positioning, micro-assembly, and micro-robots. Background technique [0002] MEMS is an emerging, interdisciplinary high-tech field, which brings together electronics, machinery, materials, manufacturing, measurement, and newly grown (including crossed, different levels) tiny and microscopic systems in physics, chemistry, and biology. The science and technology group in the field is considered to be the core technology of the 21st century. In this field, micro-manipulation technology involves different research directions such as micro-positioning, micro-machining, micro-assembly, micro-device fabrication and micro-robots. Due to its important role in the microscopic field, micro-clamping technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J7/00B81B5/00B81B7/02
Inventor 李庆祥李玉和白立芬李勇
Owner TSINGHUA UNIV
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