一种可适用复杂曲面物体抓取的变刚度软体机械手

By designing a variable stiffness soft manipulator and combining it with a magnetorheological damper and pneumatic drive, a stable gripping mechanism for complex curved surfaces was achieved, solving the problems of insufficient stability and stiffness of traditional manipulators when gripping fragile items and complex curved surfaces.

CN116100586BActive Publication Date: 2026-07-17HEFEI UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Filing Date
2023-04-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional rigid robotic arms suffer from significant damage and insufficient gripping stability when grasping fragile items and complex curved surfaces. Soft robotic arms have limited longitudinal gripping range and are flexible and easily deformable, making it difficult to meet the gripping requirements of complex curved surfaces.

Method used

Design a variable stiffness soft manipulator suitable for grasping complex curved objects. The manipulator uses a magnetorheological damper with magnetorheological fluid to achieve variable stiffness of the soft finger. Combining lateral and longitudinal grasping designs, the manipulator utilizes a pneumatic drive and rope transmission mechanism. The stiffness of the soft finger is changed by controlling the on and off of the magnetorheological damper.

Benefits of technology

It improves the gripping stability and load capacity of the soft robotic arm, enhances the gripping force on complex curved objects, and meets the rigidity and stability requirements of the gripped objects.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116100586B_ABST
    Figure CN116100586B_ABST
Patent Text Reader

Abstract

本发明涉及软体机器人技术领域,具体涉及一种可适用复杂曲面物体抓取的变刚度软体机械手。包括连接机构和一对软体手指机构,软体手指机构包括转轴、磁流变阻尼器、软体手指和传动机构,软体手指包括驱动体和下部的约束体,驱动体的外侧部均匀设有横向布置的第一驱动腔体;驱动体的两侧面上分别设有一对侧向抓紧块,每个侧向抓紧块的外侧部均匀设有竖向布置的第二驱动腔体;向驱动腔体内充气,使得软体手指弯曲变形抓取物体,转轴一方面连接着磁流变阻尼器的输出轴,另一方面通过传动机构连接着软体手指,控制磁流变阻尼器的通断电可实现软体手指的变刚度,因此本发明适用于曲面复杂物体的抓取,且抓取稳定性强。
Need to check novelty before this filing date? Find Prior Art