Measuring device for a machine tool
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United States of America Patent
Stats
-
Oct 4, 1988
Grant Date -
N/A
app pub date -
Apr 18, 1986
filing date -
Apr 18, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A measuring device for a machine tool comprises at least one sensor mounted on a supporting arm which is movable with the help of a carriage. To perform an exact measurement of the distance between two diametrically opposed points on a work piece, the supporting arm with the sensor is slidably and/or pivotally mounted on the carriage to displace the sensor in a transverse direction over the machine tool turning center. A folding in and out of the supporting arm which is mounted on a holder on the carriage occurs during insertion into and withdrawal from a storage pocket of a tool magazine. Air cleaning means and cooling means for the sensor and the workpiece are provided. In another embodiment of the measuring device the supporting arm can be approximately U-shaped mounted on a shaft with a sensor on the end of each U-leg for a two point workpiece measurement, can be slid along the holder for the supporting arm and is pivotable about 90 degrees. This holder guides each of the sensors over one side of the work piece. From the displacement distance over the machine tool turning center the workpiece diameter is directly ascertainable.
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