Tool clamping and releasing device
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United States of America Patent
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Jun 20, 1995
Grant Date -
N/A
app pub date -
Mar 18, 1994
filing date -
Mar 19, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tool clamping and releasing device comprises an axially movable tie rod and a shifting apparatus for the tie rod actuated by cup springs. The shifting apparatus comprises a sliding collar subject at one end to the action of the cup springs and which is provided with cams on the opposite end. A rotary collar has pins engaging the cams so that axial movement of the sliding collar rotates the rotary collar, which has a ramp; the tie rod has a cooperating ramp, so that axial movement of the sliding collar causes rotation of the rotary collar and axial movement of the tie rod.
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