Automatic tool-moving machine
US4273482A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1979 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Jun 27, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/308064
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An automatic machine for displacing a shaping tool, such as a router, over a work area includes a tool mounting assembly carried by support means such as an articulated arm. The arm is movable by first movement means relative to fixed structure of the machine over the whole work area, while the tool mounting assembly can be moved within a limited zone relative to the arm by second movement means. The movement of the tool mounting assembly (and thus of the tool) is directly measured relative to the machine fixed structure and compared with a required movement to generate an error signal. This signal is fed to the second movement means which endeavors to move the tool mounting assembly as required over the work area. In order to prevent the tool mounting assembly reaching the limits of its movement relative to the arm, the first movement means is connected in a servo loop arranged to monitor the movement of the mounting assembly relative to the arm, and to activate the first movement means to maintain the mounting assembly within the limits of its movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.