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Magnetically driven bistable flexible actuator

A bistable, magnetic drive technology, applied in the direction of manipulators, program control manipulators, manufacturing tools, etc., can solve the problems of limited practical application, small driving deformation, slow response speed, etc., to improve driving performance, solve low output force, The effect of improving response speed and driving force

Active Publication Date: 2021-02-05
ZHEJIANG LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing flexible actuators are mostly based on air-inflated drives, shape memory alloy drives, dielectric elastomer drives, hydrogel drives, etc. The existing problems are small drive deformation, small output force, slow response speed, etc., which greatly limit its application Practical applications in the field of soft robotics

Method used

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  • Magnetically driven bistable flexible actuator

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Embodiment Construction

[0026] The technical solution of the patent of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. The following examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0027] In the description of the present invention, it should be noted that if the terms "front end", "rear end", "upper surface", "lower surface", "left", "right", "vertical", "horizontal" appear , "inner", "outer" and other indicated orientations or positional relationships...

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Abstract

The invention provides a magnetically driven bistable flexible actuator. The magnetic drive bistable flexible actuator comprises drive modules and guide modules. Each drive module is composed of a flexible driving layer and an elastic layer, and the elastic layer is fixed to the flexible driving layer and is in a stretched state. In the stretching direction of each elastic layer, magnetic fields with opposite magnetic directions are arranged in the two ends of the corresponding flexible driving layer correspondingly. The guide modules are multiple strip-shaped bodies, the strip-shaped bodies are fixed to the two ends of the magnetically driven bistable flexible actuator in a barb shape, and the barb orientation is the same as the stretching direction of the elastic layers. The driving modules generate driving force required by bending deformation, and the pre-stretched elastic layers provide restoring force required by rapid recovery of the flexible actuator. The magnetically driven bistable flexible actuator further comprises a supporting module composed of the high-strength elastic layers and used for guaranteeing the overall rigidity and quick response of the structure. The guide modules are used for ensuring that the flexible actuator always keeps an advancing posture and does not slide backwards during movement. According to the magnetically driven bistable flexible actuator, the response speed and the driving force of the flexible actuator are improved, the cost is low, and the manufacturing process is simple.

Description

technical field [0001] The invention relates to the field of flexible actuators, in particular to a magnetically driven bistable flexible actuator. Background technique [0002] Traditional robots are mainly rigid structures, which are widely used in all walks of life and have considerable technical accumulation. However, because traditional robots mainly adopt rigid structures, resulting in complex structures and low flexibility, they can only be used in relatively traditional fields, and some environments that require high flexibility are not suitable for the application of traditional robots. With the continuous development of robot technology in recent years, a new type of robot, soft robot, has gradually been derived. Unlike traditional hard robots, soft robots are usually made of soft materials, and the driving tasks are usually realized by flexible actuators. Flexible actuators are usually composed of elastic soft materials that can produce large deformations, and ca...

Claims

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Application Information

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IPC IPC(8): B25J9/00B25J9/10B25J11/00
CPCB25J11/00B25J9/00B25J9/10B25J9/0009
Inventor 李国瑞李铁风卓江山梁艺鸣薛耀庭赵官峰
Owner ZHEJIANG LAB
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