Magnetic-induced stiffness changed soft robot drive module and production method thereof
US11345054B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2020 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Jun 1, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25J19/007
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A magnetic-induced stiffness changed soft robot drive module includes magnetic-induced stiffness changed layer, two-degree-of-freedom pneumatic driver, magnetic core and sealing fixing device. The magnetic-induced stiffness changed layer and two-degree-of-freedom pneumatic driver are printed and formed. The magnetic core can be deformed together with the driver, and a magnetic field can be generated when it is energized. After the magnetic core is installed into the two-degree-of-freedom pneumatic driver, then assembled with the sealing fixing device, a soft robot drive module with one end fixed is finished. The magnetic-induced stiffness changed layer has the fast, reversible and controllable stiffness adjustment ability under the action of electromagnetic field. As its hardness is greater than that of the two-degree-of-freedom pneumatic driver and its position is outside the air cavity, the two-degree-of-freedom pneumatic driver can be restricted from over-expansion and over-extension in the axial direction, making its pneumatic bending deformation controllable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.