Machine tool
US4679296A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1985 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Aug 23, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T483/1818
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machine tool with a vertically reciprocating spindle head has an automatic tool changer including a rotatingly indexable tool support connected to the machine tool frame and vertically movable independently of the spindle head, a first cam-and-crank mechanism activated by spindle head vertical movement to move the tool support with the spindle head during a portion of the tool changing operation, a second cam-and-crank mechanism also activated by spindle head vertical movement for opening and closing a tool holder on the tool support during another portion of the tool changing operation, and a vertical stop for preventing vertical movement of the tool support with the spindle head into the machining region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.