ROTARY INDEX DEVICE IN MACHINE TOOL
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United States of America Patent
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Issued Date -
Aug 12, 2010
app pub date -
Oct 6, 2008
filing date -
Oct 10, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A rotary index device in a machine tool includes a rotating shaft; and a clamp device. The clamp device includes a piston member provided displaceably in a direction along a rotational axis of the rotating shaft and having a tapered surface formed on a side surface thereof on a clamp position side, pressing force conversion means, for receiving a pressing force from the piston member when the piston member is displaced, converting the pressing force into a force in the radial direction of the rotating shaft, and causing the converted force to act on the rotational body, and urging means for urging the piston member in a direction in which the pressing force conversion means generates the pressing force in the radial direction of the rotating shaft.
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