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Vacuum-driven actuator based on scissor mechanism

A scissors mechanism and actuator technology, applied in the field of vacuum drive actuators, can solve problems such as poor adaptability to the working environment, and achieve the effects of strong adaptability, reduced overall volume, and high safety

Active Publication Date: 2021-03-12
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, many research teams have developed a variety of typical vacuum-driven soft actuators, but there is no example of introducing the scissor mechanism into the field of vacuum-driven soft actuators.
Moreover, the existing types of actuators basically need to work under specific conditions and for specific work requirements, and their adaptability to the working environment is not strong.

Method used

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  • Vacuum-driven actuator based on scissor mechanism
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  • Vacuum-driven actuator based on scissor mechanism

Examples

Experimental program
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Effect test

Embodiment 1

[0025] refer to Figure 1-4 As shown, a vacuum-driven actuator based on the scissors mechanism in the first embodiment, wherein the outer film 1 covers the outside of the entire scissors mechanism skeleton 2, and the outer film 1 is fixedly connected to the scissors mechanism skeleton 2, and the outer film 1 1 is provided with a pneumatic joint. When negative pressure is applied to the actuator, the outer film 1 will first shrink and push the scissors mechanism frame 2 to perform the overall contraction movement. During this process, the outer film 1 will always be close to the scissors mechanism frame 2, and there will be no outer film 1 and the scissor mechanism skeleton 2 are separated from each other. When the actuator is to return to its original position, it is necessary to inflate the interior of the actuator. At this time, if there is no restraint between the outer film 1 and the scissors mechanism skeleton 2, the two will separate and the actuator will fail. Therefo...

Embodiment 2

[0032] refer to Figure 5 As shown, the difference between the second embodiment and the first example is that the scissors mechanism framework 2 can also be made by intersecting the polygonal folded plates 5, so that the scissors mechanism framework 2 forms a thin-walled scissors mechanism framework. The scissors mechanism skeleton 2 of the present embodiment is made up of two polygonal folded plates 5, and each polygonal folded plate 5 is made by bending a plurality of parts of a rectangular sheet, and the thin sheet material is selected the material with good toughness, as paper, PVC plastic sheet Wait. Cut the openings that can cooperate with each other at the junction of the two polygonal flaps 5 respectively, and cross-plug the two parts to form the scissors mechanism skeleton 2, and glue the corners of the polygonal flaps 5 and the outer film 1 firmly. The working principle of the second embodiment is the same as that of the first embodiment, but it can only be used as...

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Abstract

The invention discloses a vacuum-driven actuator based on a scissor mechanism, and belongs to the technical field of vacuum-driven actuators. The scissor mechanism in a traditional mechanism is introduced into the field of soft actuators, the two forms of a straight line and a curve are achieved, adjustment can be conducted according to different working environments, and thus the vacuum-driven actuator adapts to the various working environments. The actuator comprises an outer thin film and a scissor mechanism framework, wherein the outer thin film wraps the outer portion of the scissor mechanism framework and is fixedly connected with the scissor mechanism framework, and a pneumatic connector is arranged on the outer thin film. The vacuum-driven actuator has high stability, shrinkage andsafety.

Description

technical field [0001] The present invention relates to the technical field of vacuum-driven actuators, and more specifically, it relates to a vacuum-driven actuator based on a scissor mechanism. Background technique [0002] In recent years, the field of soft robotics has continued to develop and has attracted the attention and attention of a large number of researchers. Various types of soft actuators have been designed and invented for different fields such as service robots, medical devices and wearable devices. The main characteristics of soft actuators are: compared with the relatively safe interaction process between traditional institutions and humans, soft actuators are flexible and adaptable and can adapt to more complex environments. The current soft actuators can be driven by thermal energy, electric energy, air pressure, hydraulic pressure, vacuum, etc., and vacuum drive has higher stability, shrinkage, and safety than other drive methods. [0003] At present, ...

Claims

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Application Information

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IPC IPC(8): B25J9/00
CPCB25J9/0009B25J9/0015
Inventor 钟勇余炳寰杜如虚
Owner SOUTH CHINA UNIV OF TECH
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