Robot joint
US4738576A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1986 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Apr 3, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25J9/102
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A robot joint includes an electric drive motor and step-down transmission ilt into the robot joint housing. The output of the transmission drives a gear to which a mounting flange is coupled. A first part of the robot is coupled to the housing and a second robot part is coupled to the mounting flange. The mounting flange is supported axially and radially in the housing by bearings. The bearings preferably include a conical-roller bearing for providing radial and axial support and a needle bearing for providing axial support. Both bearings are maintained under pretension by a spring, thereby providing a robot joint which is free of play.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.