MACHINING HEAD FOR MACHINE TOOL
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United States of America Patent
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N/A
Issued Date -
Nov 18, 2010
app pub date -
Aug 13, 2007
filing date -
Aug 23, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A machining head for a machine tool includes a spindle unit including a spindle to which a tool is attachable and a support head component that supports the spindle unit, the support head component including an index mechanism that rotates the spindle unit at least about an axis line extending perpendicular to a rotary axis line of the spindle in order to index an angular position of the spindle unit. The index mechanism includes a support shaft fixed to the spindle unit and rotatably provided within a housing of the support head component, and a drive motor for rotating the support shaft, the drive motor including a motor rotor and a motor stator, the motor rotor being disposed concentrically with the support shaft around the support shaft within the housing of the support head component and being linked to the support shaft, the motor stator surrounding the motor rotor to face an outer periphery of the motor rotor. The bearing for rotatably supporting the support shaft is disposed within the motor rotor in a radial direction within a range occupied by the drive motor in a rotary axis line direction of the support shaft.
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