The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 1999
Filed:
Jun. 11, 1998
Applicant:
Inventor:
Satoru Ozawa, Shizuoka, JP;
Assignee:
Star Micronics Co., Ltd., Shizouka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
82 48 ; 82118 ; 82121 ; 82162 ;
Abstract
A cutting-off method of an automatic lathe, comprising steps of applying a front working to a bar material by a front working tool with the bar material chucked by a main spindle rotatably supported by a headstock and with a top end of the bar material supported by a guide bush, applying a cutting-off by a cut-off tool after completion of the front working with the top end of the bar material chucked and rotatively driven by a sub spindle rotatably supported by a rear headstock, and simultaneously releasing the bar material chucked by the main spindle so that the headstock may rearwardly move to a working start position to be ready for the next working.