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Patent Searching and Data


Title:
クランプ装置
Document Type and Number:
Japanese Patent JP4774406
Kind Code:
B2
Abstract:
The invention relates to a clamping device for clamping a tool ( 8 ), or tool holder in a working spindle ( 4 ), in particular, of a machine tool, comprising a drawbar ( 10 ), arranged to be displaced within the working spindle ( 4 ), a clamping set ( 12 ), arranged in the working spindle ( 4 ) and displaceable between a clamping position and a released position by means of the drawbar ( 10 ), a spring arrangement ( 14 ) provided for the drawbar ( 10 ) to generate the drawing force for the clamping set ( 12 ) and a releasing unit ( 17; 49 ), by means of which the clamping set ( 12 ) may be moved into the released position by the drawbar ( 10 ) against the force of the spring arrangement ( 14 ). According to the invention, a simplified operation of the clamping device may be achieved, whereby the releasing unit ( 17; 49 ) may be operated by an electrical actuator ( 62, 63, 53, 54 ).

Inventors:
Greif, Joseph
Bechteller, wolfgang
Application Number:
JP2007537169A
Publication Date:
September 14, 2011
Filing Date:
October 14, 2005
Export Citation:
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Assignee:
Otto-Jakob Supantehinik Gamebehr
International Classes:
B23B31/117
Domestic Patent References:
JPH0663806A1994-03-08
JP2002192410A2002-07-10
Attorney, Agent or Firm:
Hiroe Associates Patent Office