Valve seat machining device, and valve seat machining method using said valve seat machining device
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United States of America Patent
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Apr 2, 2019
Grant Date -
Jun 29, 2017
app pub date -
Jun 15, 2016
filing date -
Jun 16, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A valve seat processing machine configured to process a valve seat in a valve device including a valve body portion which forms a flow passage of fluid and a valve drive portion which drives a valve element capable of tightly engaging with the valve seat includes: a base portion attached to the valve body portion; a main body portion movable relative to the base portion; a support portion movable relative to the main body portion in a drive direction of the valve element; a main spindle rotatable relative to the support portion about an axis parallel to the drive direction of the valve element; a tool holder configured to hold a tool for processing the valve seat and movable relative to the main spindle in a direction intersecting the drive direction of the valve element; and a controller configured to control movement of the support portion and the tool holder.
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