Controller for controlling robot body with power-off brake
US7852030B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2008 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Apr 21, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41285
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In a controller, a first switch unit establishes electrical connection between a power-off brake and a power source when a servomotor is energized. The electrical connection causes the power-off brake to be released. A second switch unit is provided between the power-off brake and the power source. The second switch unit establishes electrical connection between the power-off brake and the power source upon being manually operated during the servomotor being deenergized. A calculating unit calculates a driving speed of the joint by the servomotor. A determining unit determines whether the calculated driving speed of the joint is greater than a predetermined threshold speed. An interrupting unit interrupts a supply of electrical power from the power source to the power-off brake through the electrical connection established by the second switch unit when it is determined that the calculated driving speed of the joint is greater than the predetermined threshold speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.