Method of and apparatus for positioning a tool
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United States of America Patent
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Mar 24, 2015
Grant Date -
Oct 27, 2011
app pub date -
Apr 23, 2011
filing date -
Apr 26, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to an apparatus (100) for positioning a tool (21) in a profile rolling machine, comprising a base (10) and at least one spindle (30) extending in a first bore (17) of the base as abutment for the tool (21). A retraction rod (25) serves as connection between the base and the tool (21). A tractive force for the retraction rod (25) is generated by an actuator (50) and the tool is pulled by the retraction rod (25) against a tool stop (23). The first bore (17) is locally expanded to form a cylinder chamber (12). A piston (40) is mounted in an axially displaceable manner in the chamber (12). A pressure medium (M) is introduced via a pressure connection (46) into the base (10) into the cylinder chamber (12) between the base and the piston (40) for applying a force (F1) on the piston (40).
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