Title:
ワーク押さえを備える主軸装置
Document Type and Number:
Japanese Patent JP4180476
Kind Code:
B2
Abstract:
There is provided a spindle unit (100) having a pressure foot whose machining efficiency may be improved even when compressed air is used as means for pressing the pressure foot. The spindle unit (100) having the pressure foot comprises a rotor shaft (1) mounted rotatably within a base (16) and movably along an axis (0), a collet chuck (2) mounted at one end of the rotor shaft (1), a linear motor (18) for moving a movable element (12) rotatably connected with the rotor shaft (1) and movably provided within the base (16) along the axis (0) together with the rotor shaft (1) to move a drill (40) closer to or apart from the workpiece, a rotary motor (17) for rotating the rotor shaft (1), a pressure foot (53) disposed in front of the edge of the collet chuck (2) and is capable of pressing down the workpiece, and air cylinders (50) for connecting the movable element (12) with the pressure foot (53) so as to be relatively movable by a predetermined degree and for pressing the pressure foot (53) in the direction separating from the collet chuck (2).
Inventors:
Nobuhiko Suzuki
Yasushi Ito
Shinji Tanaka
Yasushi Ito
Shinji Tanaka
Application Number:
JP2003317494A
Publication Date:
November 12, 2008
Filing Date:
September 09, 2003
Export Citation:
Assignee:
Hitachi Via Mechanics, Ltd.
International Classes:
B23B47/28; B23B19/02; B23B47/00; B23Q3/06; B23Q5/32
Domestic Patent References:
| JP62107903A |
Foreign References:
| US5108236 | ||||
| US5123789 |
Attorney, Agent or Firm:
Kazuo Chikajima
Shinji Aida
Shinji Aida