Expansion Chucking Device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Sep 20, 2007
app pub date -
Apr 5, 2005
filing date -
Apr 6, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention relates to an expansion chucking device having: a base body (2); an expansion sleeve (4) provided at an axial end region of the base body (2), which sleeve forms a central receptacle (5) for a component to be chucked; and a chucking ring (6) that surrounds the expansion sleeve (4), forming an annular pressure chamber (7) located therebetween, and is thread-joined to the base body (2), the pressure chamber (7) being filled with a hydraulic medium (11) and the expansion sleeve (4) being capable of being elastically deformed in order to secure a component in the receptacle (5) by the fact that the chucking ring (6) is axially displaced by rotation with respect to the base body (2), with a reduction in the volume of the pressure chamber (7), wherein multiple slits (4b) are embodied in the expansion sleeve (4) which extend in the axial direction and are spaced apart from one another when viewed in the circumferential direction, the expansion sleeve (4) being sealed off with respect to the pressure chamber (7) in order to prevent any entry of hydraulic medium (11) into the slits (4a).
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