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Flexible microgripper through topological optimization

A technology of topology optimization and micro-clamps, which is applied in the direction of micro-structure technology, micro-manipulators, micro-structure devices, etc., can solve the problems of large size of micro-clamps and different shapes of clamp bodies, and achieve fast response, simple control, and economical energy effect

Inactive Publication Date: 2010-06-02
DALIAN UNIV OF TECH
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  • Abstract
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Problems solved by technology

There is a patented micro-clamp (Patent No. 200410021032.6), although it also uses topology optimization to design the clamp body, but the design goal is different from that of the present invention, so the shape of the clamp body is also completely different; the driver of this patent is driven by piezoelectric ceramics, and the The present invention adopts electrothermal drive, and the size of the micro-clamp of this patent is relatively large

Method used

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  • Flexible microgripper through topological optimization
  • Flexible microgripper through topological optimization
  • Flexible microgripper through topological optimization

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Embodiment Construction

[0012] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings. Such as figure 2 Shown is the left part of the enlarged part M of the forceps body, and the right part is symmetrical to it. Then, CAD and finite element analysis software were used to geometrically reconstruct the topological configuration of the topology optimization design, modify the single-point hinge to a flexible hinge to appropriately increase the stiffness, and determine the shape of the micro-clamp according to the specific situation. The topology optimization design method gets rid of the empirical design idea of ​​the traditional pseudo-rigid body method, but seeks the best material distribution method from the perspective of the elastic body material itself to meet the design idea of ​​the fully flexible mechanism.

[0013] as attached figure 1 As shown, when the drive is applied to the micro-clamp: af...

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Abstract

The invention relates to a flexible microgripper through topological optimization, which belongs to a microactuators in the technical field of the micro electro mechanical systems and is a flexible electrothermally driven microgripper. The flexible microgripper consists of a shift amplifying section and a driving section and is an integral structure with the eudipleural gripper body. The shift amplifying section M is designed by using the topological optimization method and comprises left and right triangular components and a flexible rod, wherein the left and right triangular components randomly hollow triangle structures. The driving section comprises a V-shaped beam array, left and right driving fixed rods and left and right electrodes. The microgripper has the advantages of unique and novel structure, large output shift, rapid response, simple control, convenient integration and is effective and energy-saving without applying drive in the process of gripping objects, thereby the microgripper is quite suitable for gripping minute objects for micro-assembly, micro-operation and the like.

Description

technical field [0001] The invention belongs to the category of micro-actuators in the technical field of micro-electro-mechanical systems, and is a flexible electrothermally driven micro-clamp. Background technique [0002] Micro-clamp is an important micro-actuating device in the MEMS application field, and plays an important role in micro-assembly and micro-manipulation. The research and development of micro-clamps suitable for the manipulation and assembly of micro-parts is a key link in the realization of micro-system scientific experiments and industrialization, and has become an important aspect in the field of MEMS technology. [0003] There are two types of microgrippers: rigid and flexible. Traditional pliers made of rigid structures are generally bulky and difficult to miniaturize, which is not conducive to micro-manipulation, and it is difficult to manufacture and assemble. Compared with the traditional rigid connection structure, the flexible structure is comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81B5/00B25J7/00
Inventor 禇金奎张成张然刘帅王文静
Owner DALIAN UNIV OF TECH
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