Three-degree-of-freedom parallel mechanism with curved sliding pairs
US10994410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2017 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Apr 25, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25J17/0283
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A three-degree-of-freedom parallel mechanism with curved sliding pairs includes a fixed platform, a moving platform, and three curved branches disposed between the fixed platform and the moving platform. Each of the curved branches includes a first curved link and a second curved link that share a common arc center. One end of the first curved link is connected to fixed platform by a rotational pair. One end of the second curved link is disposed in a cavity at another end of the first curved link. The second curved link is operative to perform a reciprocating motion along a tangent of an arc of the first curved link. Another end of the second curved link is connected to the moving platform by a ball joint. The axes of the three rotational pairs of the three curved branches coincide with each other and are perpendicular to the fixed platform. In the three-degree-of-freedom parallel mechanism with curved sliding pairs, the moving platform of the parallel mechanism is rotatable around the X-axis, Y-axis, and Z-axis of a three-dimensional coordinate system taking the arc center of the three curved branches as the origin, where the rotation of the moving platform about the Z axis is dec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.