Gripping system with clamp device and method of using the same
US11020840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Dec 17, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25J15/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A gripping system for securing a work piece includes a clamp device, a rotary actuator, and a control circuit. The clamp device includes a ball screw mechanism and a jaw portion that has multiple grip fingers. The ball screw mechanism includes a shaft and a holder assembly. The shaft extends through the holder assembly and is configured for displacement along a central axis of the jaw portion. A distal tip of the shaft engages the grip fingers. The control circuit controls the rotary actuator to drive rotation of the shaft relative to the holder assembly, causing displacement of the shaft along the central axis. The displacement of the shaft causes the distal tip of the shaft to force the grip fingers to move in a radial direction away from the central axis to provide a clamp force on the work piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.