Patent ID: 11883973
Assignee: NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM
Field: Machine tools (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 5:
6. A cutting apparatus comprising:
a rotation drive motor that rotates a spindle to which a cutting tool or to-be-cut object is attached;
a feed drive motor that moves the cutting tool relative to the to-be-cut object;
a controller that is programmed to specify a contact position between the cutting tool and the to-be-cut object from time-series data of a detection value related to the rotation drive motor and/or the feed drive motors;
a controller; and
a storage medium storing a program, wherein
when the program is executed, the program causes the control to be configured to:
set a threshold for specifying a state of contact between the cutting tool and the to-be-cut object by using first time-series data of a detection value acquired before contact, and specify second time-series data containing a detection value greater than the threshold, and
specify the contact position based on an average value of the first time-series data and a regression equation obtained by regression analysis of the second time-series data.