Shock-absorbing device for spindle headstocks
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United States of America Patent
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-
Mar 19, 2002
Grant Date -
N/A
app pub date -
Nov 23, 1999
filing date -
Nov 27, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A shock-absorbing device is intended to be mounted on a spindle headstock of a machine tool. The spindle headstock includes a motor driven spindle unit connected to an upright by a support. The shock-absorbing device comprises a yieldable structure connected on one side to the spindle unit and on the other side to the support, and is adapted to yield upon an accidental collision of the spindle headstock against a workpiece. A collision sensor or is associated with the yieldable structure for detecting the yielding thereof resulting from an accidental collision of the spindle headstock with a workpiece, and for transmitting in response thereto a signal to a machine tool control unit.
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