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:
Dec. 26, 2017
Filed:
Dec. 16, 2014
Applicant:
Matsuura Machinery Corporation, Fukui, Fukui, JP;
Inventors:
Assignee:
Matsuura Machinery Corporation, Fukui, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 23/00 (2006.01); B23Q 15/08 (2006.01);
U.S. Cl.
CPC ...
B23B 23/00 (2013.01); B23Q 15/08 (2013.01); B23B 2250/16 (2013.01); Y10T 82/2564 (2015.01);
Abstract
A tail stock moving mechanism, in which a tail stock that holds a work with a predetermined pressure force is moved by a ball screw and in which control required for holding the work with the predetermined pressure force is implemented, is accomplished in a predetermined order wherein, the tall stockholds a position of the workand is supported by a ball screw, torque generated by a drive motorthat drives the ball screwis detected, and when the torque reaches a predetermined reference value, then operation of a braketo limit rotation of the ball screwand cutting off of an input from a power supply to the drive motorare performed.