Apparatus for checking diametral dimensions of cylindrical parts rotating with an orbital motion
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United States of America Patent
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Oct 27, 2009
Grant Date -
Feb 21, 2002
app pub date -
Jun 7, 2001
filing date -
Oct 3, 1995
priority date (Note) -
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Abstract
An apparatus for checking the diameter of crankpins (18) of a crankshaft (34) in the course of the machining in a grinding machine comprises a first arm (9) rotating with respect to a support (5) arranged on the grinding-wheel slide (1) of the grinding machine, a second arm (12) rotating with respect to the first, a reference device (20) carried by the second arm and a measuring device (16, 17, 40-45) associated with a reference device. A guide device (21), fixed to the reference device (20), enables the apparatus to engage a crankpin, in the course of the orbital motion of the crankpin, and limit the displacements of the first arm and those of the second arm when a control device (28-30) displaces the apparatus to a rest position.
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