Title:
BORING DEVICE
Document Type and Number:
Japanese Patent JP2004261926
Kind Code:
A
Abstract:
To realize miniaturization/lightening of a boring device for a plate-like work, to shorten a boring processing time and to enhance quality of processing holes and yields.
A punch 22 is driven by a servo-motor 231 and a feed screw 232 or the like rotated and driven by the servo-motor. A stand-by position of the punch 22 before boring and a driving speed are made variable by a control of the servo-motor 231. Thereby, a movement stroke of the punch 22 is made minimum and a boring processing time can be shortened. It can be avoided that irregularity, burr, crack or peeling off is generated on the processing hole by an appropriate driving speed of the punch.
Inventors:
TONOMURA YUJI
Application Number:
JP2003055240A
Publication Date:
September 24, 2004
Filing Date:
March 03, 2003
Export Citation:
Assignee:
SEIKO PRECISION KK
International Classes:
B26F1/14; B23B41/00; B26F1/00; B26F1/02; B26F1/04; H05K3/00; (IPC1-7): B26F1/14; B26F1/00