Machine tool
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United States of America Patent
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Jan 21, 2014
Grant Date -
May 2, 2013
app pub date -
Apr 26, 2012
filing date -
Nov 2, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A machine tool includes a spindle side position measuring unit measuring a spindle axial position in a spindle radial direction relative to a first reference position and a tool side position measuring unit measuring the position of a tool post relative to a second reference position. The spindle side position measuring unit includes a first scale extending in the spindle radial direction and a first readout unit, one of a base end portion of the first scale and the first readout unit is disposed at a spindle axis and the other of the base end portion of the first scale and the first readout unit is disposed at the first reference position. One of a base end portion of a second scale and a second readout unit is disposed on the tool post and the other is disposed at the second reference position.
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Cited Art Landscape
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