Compact mechanism for creating simultaneous rotary and linear motion
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United States of America Patent
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Jul 22, 1997
Grant Date -
N/A
app pub date -
Jun 30, 1994
filing date -
Jun 30, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A compact mechanism for producing simultaneous rotary and linear motion for a machine tool includes a drive shaft having a spline race and helical race coextensive over at least a portion of its length. The compact mechanism includes a first motor coupled to a screw engaging the helical race for imparting linear motion on the drive shaft. The compact mechanism also includes a second motor coupled to a spline engaging the spline race for imparting rotary motion on the drive shaft. By operating the motors simultaneously but independently, a wide range of linear movement is obtained.
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Cited Art Landscape
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