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.

Date of Patent:
Aug. 31, 2021

Filed:

Sep. 17, 2019
Applicant:

Korea Institute of Machinery & Materials, Daejeon, KR;

Inventors:

Jong-Kweon Park, Daejeon, KR;

Byung-Sub Kim, Daejeon, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 29/034 (2006.01); B23Q 15/22 (2006.01); B23Q 17/22 (2006.01); B23B 41/12 (2006.01);
U.S. Cl.
CPC ...
B23B 29/03496 (2013.01); B23Q 15/22 (2013.01); B23B 29/03428 (2013.01); B23B 29/03464 (2013.01); B23B 29/03485 (2013.01); B23B 41/12 (2013.01); B23B 2260/108 (2013.01); B23B 2270/04 (2013.01); B23Q 17/22 (2013.01);
Abstract

A cutting head operated by a centrifugal force according to an embodiment of the present invention includes: an external housing that is rotatable; an internal housing installed within the external housing so as to be able to advance and retreat in a diameter direction, advanced toward a cut surface of a workpiece positioned outside the external housing by a centrifugal force according to rotation of the external housing, and retreated in a direction that becomes distant from the cut surface by an elastic member while the centrifugal force disappears; and a cutting tool unit provided in the internal housing and processing a groove in the cut surface while being advanced and retreated by a micro advance and retreat member.


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