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:
Apr. 29, 1986
Filed:
Mar. 20, 1985
Hitoshi Akabane, Anjo, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
In a numerical control grinding machine, a workpiece with a taper portion to be ground is rotatably supported on a swivel table which is mounted on a traverse table to be pivotable about a pivot. For grinding the taper portion, the traverse table is moved to bring a reference end surface of a workpiece into engagement with a measuring device, and a numerical controller detects a deviation of the pivot from a corresponding position in the case of a workpiece model. The numerical controller is in advance given a reference table feed amount, a reference swivel pivot angle and a reference wheel feed amount through which the traverse table, the swivel table and the grinding wheel would be moved respectively after the reference end surface is brought into engagement with the measuring device, to precisely grind a corresponding taper portion of the workpiece model if the same were supported on the swivel table. The numerical controller compensates the reference table feed amount and the reference wheel feed amount for the detected deviation and then, controls movements of said traverse table, the swivel table and the grinding wheel based upon the compensated table feed amount, the reference swivel pivot angle and the compensated wheel feed amount, whereby the taper portion of the workpiece can be ground to a desired dimension at a position spaced from the reference end surface a predetermined distance.