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 7:
8. A non-transitory computer-readable recording medium storing a computer program causing a computer to be configured to:
specify, from time-series data of a detection value related to a rotation drive motor that rotates a spindle to which a cutting tool or to-be-cut object is attached and/or a feed drive motor that moves the cutting tool relative to the to-be-cut object, first time-series data of a detection value acquired before contact;
set a threshold for specifying a state of contact between the cutting tool and the to-be-cut object by using the first time-series data,
specify second time-series data containing a detection value greater than the predetermined threshold from the time-series data of a detection value related to the rotation drive motor and/or the feed drive motor; and
specify a contact position between the cutting tool and the to-be-cut object 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.