Main shaft device for machine tools
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United States of America Patent
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May 31, 2005
Grant Date -
Jul 15, 2004
app pub date -
May 27, 2002
filing date -
Jun 4, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A main shaft device for machine tools designed to prevent the wasting of cutting fluid mists and contamination of a machining environment with cutting fluid mists by feeding optimum amounts of cutting fluid mists in a variety of machining operations, comprising a mist feed tube (14) disposed in the rotational center of a main shaft (2) driven for rotation, the front of the mist feed tube (14) being inserted in the rotational center of a tool holder (8) fixed to the front of the main shaft (2) to ensure that the cutting fluid mists flowing out of the front end of the mist feed tube (14) spout from the front end surface of a cutting tool (17) fixed to the tool holder (8), via a mist passageway (h1) in the tool holder (8), the main shaft device being characterized in that the mist feed tube (14) has an adjusting nozzle member (16) removably fixed to the front thereof for controlling the flow rate of the cutting fluid mists flowing out of the feed tube (14) into the mist passageway of the tool holder (8).
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