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. 26, 1980
Filed:
Aug. 25, 1978
Toyoda-Koki Kabushiki-Kaisha, Aichi, JP;
Abstract
An automatic centering controller for centering the axis of a tool spindle of a numerically controlled machine tool on the axis of a reference circumferential surface of an article mounted on the machine tool. The controller comprises a touch sensing device mounted in the tool spindle for detecting the touch of a probe thereof with the reference circumferential surface, a pulse generator for applying feed pulses to servomotors through a numerical controller so as to move the tool spindle along X and Y-axes, and a pulse control device connected to the touch sensing device, the numerical controller and the pulse generator. In response to a centering instruction and the touch signal, the pulse control device applies axis designation signals to the numerical controller being under a manual mode and controls the feed pulses applied to the numerical controller so that the tool spindle is first moved along the X-axis so as to position the axis of the tool spindle at the median between two points where the probe touches with the reference circumferential surface on the X-axis and is then moved along the Y-axis so as to position the axis of the tool spindle at the median between two points where the probe touches with the reference circumferential surface on the Y-axis.