Annular cross-sectioned clutch assembly for connecting a tool to a robotic arm
US5839557A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1996 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Dec 6, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25J15/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An annular cross-sectioned clutch assembly for connecting a tool such as a paint gun to the end of a robotic arm is provided. A diaphragm-mounting plate connects on an outer side to the end of the robotic arm. An annular diaphragm is mounted to the diaphragm-mounting plate. The diaphragm has an inner surface, with the inner surface forming a pressure tight chamber with the diaphragm-mounting plate for connection to a programable source of air pressure. A clutch plate has an annular diaphragm-engagement surface engaged with a central portion of the diaphragm. Springs between the clutch plate and the diaphragm-mounting plate bias the clutch plate away from the diaphragm-mounting plate in conjunction with air pressure in the chamber. Structure is provided to establish a normal position of the clutch assembly. Additional structure is provided to establish physical limits of travel of the clutch plate with respect to the diaphragm-mounting plate. Electrical devices generate an electrical signal in response to movement of the clutch plate away from the normal position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.