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:
Feb. 14, 2006
Filed:
Sep. 16, 2003
Takahiko Endo, Kokubunji, JP;
Takahiko Endo, Kokubunji, JP;
Fanuc Ltd., Yamanashi, JP;
Abstract
A numerical controller for performing an machining operation by controlling relative position of a workpiece and a tool in synchronism with a rotational position of a rotational axis to which the workpiece or the tool is attached, without causing time delay of position control of the tool relative to the workpiece in varying a rotational velocity of the rotational axis. A rotational position θ(i=0, 1, . . . ) of a workpiece on the rotational axis, a position (X, Z) of the tool relative to the workpiece when the workpiece is at the rotational position θ, and the rotational velocity Vof the workpiece from the rotational position θto the rotational position θare set in advance. Time Trequired for rotating the workpiece from the rotational position θto the rotational position θat the rotational velocity Vis obtained. Velocities Vxand Vzof the workpiece are obtained so that the position of the workpiece reaches the next set position (X, Z) in the time T. Servomotors for the spindle, the X-axis and the Z-axis are driven at the set velocity or the calculated velocities to provide relative motions to the workpiece and the tool for the machining operation.