Hydrostatic pressure guide mechanism and machine tool
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United States of America Patent
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Oct 31, 2017
Grant Date -
Apr 28, 2016
app pub date -
Oct 27, 2015
filing date -
Oct 28, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A hydrostatic pressure guide mechanism includes: a guide member having a smooth guide surface; a movement member having a slide surface facing the guide surface and an annular placement groove formed on the slide surface; an annular seal member (hermetically closing member) that is disposed in the placement groove and capable of hermetically contacting with the guide surface; an oil supply structure configured to supply an oil into a static pressure pocket on the slide surface surrounded by the seal member; and an oil recovery structure configured to recover the oil from the static pressure pocket, in which the oil recovery structure has a recovery hole that is formed in the static pressure pocket and is opened on the slide surface.
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