Workpiece holder for a machine tool
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United States of America Patent
Stats
-
Aug 27, 2002
Grant Date -
N/A
app pub date -
Jul 6, 1999
filing date -
Jul 15, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The driving device for a circular grinding machine where the workpiece is driven between two stationary centers comprises a driven device allowing a removable attachment of a driver which is adapted to hold and turn the workpiece by means of elastic force. The driver comprises two adjacent, symmetrically disposed annular spring elements whose junction is provided with a through-going opening which forms two prismatic workpiece holders, as well as respective longitudinal openings disposed in the axis of the points of the prismatic workpiece holders which are provided with prismatic ends for receiving respective, correspondingly shaped bolts of the driven device of the circular grinding machine in order to spread apart the spring elements. A driver of this kind offers a reduced weight, on one hand, and a high precision, on the other hand, and it is particularly adapted for grinding small precision parts.
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