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:
Oct. 25, 2016
Filed:
Jun. 09, 2014
Applicant:
Smc Corporation, Chiyoda-ku, JP;
Inventors:
Atsushi Fujiwara, Moriya, JP;
Junji Nishino, Moriya, JP;
Assignee:
SMC CORPORATION, Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23Q 17/00 (2006.01); B23Q 7/00 (2006.01); B23B 31/10 (2006.01); B23B 31/30 (2006.01); B23Q 3/12 (2006.01); B23Q 3/18 (2006.01); B23Q 17/22 (2006.01);
U.S. Cl.
CPC ...
B23B 31/101 (2013.01); B23B 31/30 (2013.01); B23Q 3/12 (2013.01); B23Q 3/18 (2013.01); B23Q 17/2291 (2013.01); B23B 2231/14 (2013.01); B23B 2231/22 (2013.01); Y10T 29/49998 (2015.01); Y10T 279/1208 (2015.01);
Abstract
In a chucking device and a chucking method for a machine tool which grip a workpiece that serves as a target object to be processed by the machine tool, a first cylinder and a second cylinder are controlled based on the position of a piston of the first cylinder detected by a length measuring sensor, and the position of a piston of the second cylinder detected by a length measuring sensor. In this manner, the workpiece is gripped by respective gripping members at a predetermined position, i.e., the axial center, of a chuck main body.