Tool carriage advance and retraction control
US4271710A · kind A · utility
Inventor
Key dates
| Filing date | Aug 7, 1979 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Aug 7, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/305152
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machine tool feed system of the type in which a tool supporting sliding carriage is moved toward and away from a workpiece which includes a mechanism for moving the carriage initially in a smoothly accelerated-decelerated rapid advance stroke toward the work and further moving the carriage in the same direction through a predetermined work stroke in a slower feed motion while the tool operates on the work. The mechanism thereafter retracts the tool carriage away from the work in a smoothly accelerated-decelerated rapid return stroke equal in distance to the feed stroke added to the rapid advance stroke. Mechanisms are provided for a first drive for the rapid advance stroke and a second drive for the work stroke, with interconnection with the tool carriage which unlock a portion of the first drive mechanism while initiating the second drive for the work stroke, and regenerating or relocking the interconnectionn during the composite rapid return stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.