Title:
工作機械スピンドルにおける工具または工作物用テンションジャッキの作動装置
Document Type and Number:
Japanese Patent JP4674036
Kind Code:
B2
Abstract:
The invention relates to an actuating device for a tool or a workpiece tensioning jack in a machine tool spindle. The actuating device includes a pressure piston which is arranged inside a housing for actuating the tool or workpiece tensioning jack. In order to provide a compact, space-saving actuating device enabling leakage fluid to be drained off in a simple manner, several interspaced continuous bores are arranged concentrically around a center axis in a side wall of the housing. Pressure plungers which are axially displaceable with the aid of the pressure piston are disposed therein and the housing contains at least one leakage channel with a section extending between the pressure plungers in a radially outer direction.
Inventors:
Jacob Ludwig
Graf Joseph
Graf Joseph
Application Number:
JP2002523040A
Publication Date:
April 20, 2011
Filing Date:
August 25, 2001
Export Citation:
Assignee:
OTATE Jacob GM Behr und Company Spantechn Car Game
International Classes:
B23B19/02; B23B31/30; B23B31/02; B23B31/40
Domestic Patent References:
| JP55070509A | ||||
| JP62228308A | ||||
| JP2000005905A |
Attorney, Agent or Firm:
Kenji Yoshida
Jun Ishida
Jun Ishida