Positioning device
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United States of America Patent
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-
Jan 23, 2007
Grant Date -
Aug 24, 2006
app pub date -
Dec 10, 2003
filing date -
Dec 27, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A clamp pallet (2) as a reference member is fixed to a table (1) of a machining center. A tapered positioning hole (12) is opened in a lower surface of a work pallet (3) as a movable member. An annular central pillar (21) is projected upward from the clamp pallet (2), and an intermediate member (22) is arranged between the central pillar (21) and the positioning hole (12). The intermediate member (22) is composed of a shuttle member (23), which is diametrically expandable and contractible and supported on the central pillar (21) vertically movably, and a tapered cylinder (26), which is attached to an outer periphery of the shuttle member (23) and makes a tapering engagement with the positioning hole (12). The shuttle member (23) is urged upward by means of an elastic member (24).
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