Stiffness-variable flexible mechanism and flexible platform

By designing a variable stiffness flexible mechanism and a flexible platform, the problems of insufficient rigidity and environmental adaptability of existing platforms in nanomanipulation are solved, and high-precision and stable nanomanipulation effects are achieved.

CN119755229BActive Publication Date: 2026-07-24CHINA COAL SCIENCE & TECHNOLOGY (TIANJIN) ROCK FORMATION INTELLIGENT CONTROL TECHNOLOGY CO LTD +2
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Patent Information

Application Number
CN202411902292.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-07-24
Estimated Expiration
2044-12-20

AI Technical Summary

Technical Problem

Existing rigid platforms are difficult to achieve nanometer-level precision and have high environmental requirements, while flexible platforms are affected by magnetic fields and cannot meet the needs of nanoscale manipulation.

Method used

A variable stiffness flexible mechanism is designed to achieve overall stiffness adjustment through the bending changes of the first and second deformable parts. By combining flexible units and multi-stage variable stiffness design, motion repeatability and adaptability are improved.

Benefits of technology

It enables stiffness adjustment under different load conditions, improving the precision, stability, adaptability, and flexibility of nanomanipulation, while avoiding environmental impact.

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Abstract

The present application provides a variable stiffness flexible mechanism and a flexible platform, the variable stiffness flexible mechanism comprising: a fixed seat, a swing seat, a first deformation piece and a second deformation piece, the fixed seat and the swing seat being arranged in a spaced manner in the height direction of the fixed seat; a first end of the first deformation piece being connected with the fixed seat, a second end of the first deformation piece being connected with the swing seat, the swing seat being movable relative to the fixed seat, the first deformation piece being bendable, the second deformation piece being spaced apart from the first deformation piece in the length direction of the fixed seat, the swing seat being provided with a matching groove adjacent to one side of the fixed seat, a first end of the second deformation piece being connected with the fixed seat, a second end of the second deformation piece being arranged in the matching groove, and a gap being formed between the side wall of the second end of the second deformation piece and the side wall of the matching groove. The variable stiffness flexible mechanism has the advantages of compact structure and high motion repeatability.
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Citation Information

Patent Citations

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    CN117121360A

  • Elastic body, rotating shaft mechanism and terminal equipment

    CN219734048U