Apparatus for preventing thermal deformation of a machine tool
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United States of America Patent
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Dec 10, 1996
Grant Date -
N/A
app pub date -
Jan 11, 1994
filing date -
Jan 11, 1994
priority date (Note) -
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Abstract
An apparatus for preventing thermal deformation of a machine tool has a feed unit which heats a heat transfer fluid and pumps it out to a heat exchanging portion. The heat exchanging portion has at least one heat exchanging unit capable of being expanded and shrunk in accordance with the heat transfer fluid therein. The heat exchanging unit is arranged in a prescribed portion of a machine tool. The portion of the machine tool is heated by the heat exchanging unit arranged therein, whereby thermal distribution of the machine tool is equalized and heat deformation thereof is suppressed. The heat transfer fluid passed through the heat exchanging unit is recovered by a discharging portion and fed back to the feed unit. The heat exchanging unit is maintained in an expanded state by controlling the flow rate of the fluid passing therethrough by a flow control valve, so that heat exchanging operation can be carried out effectively. The heat exchanging unit in a shrunk state can easily be arranged even in a narrow portion of the machine tool.
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