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:
Mar. 20, 2007
Filed:
Feb. 28, 2005
Anton Banks, Manchester, CT (US);
Joseph D. Drescher, Middletown, CT (US);
Christian Jesse, Cromwell, CT (US);
Anton Banks, Manchester, CT (US);
Joseph D. Drescher, Middletown, CT (US);
Christian Jesse, Cromwell, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
To enable the on-machine measurement of selected features of a workpiece formed on a live spindle lathe with a positioning rotary table, both the machine itself and the electronic touch probe used to conduct the measurements are calibrated. The accuracy of the machine itself is measured and calculated by including the measured errors not only in the x and z linear axes, but also in the y linear axis. Calibration of the touch probe is made by determining a correction factor which is obtained by the touch probe measurement of an artifact whose dimensions are precisely known by other means. This correction factor is then made to the nominal measurements made by the touch probe on the selected features of the workpiece to be measured, to obtain the actual dimensions thereof. Adjustments are also made to compensate for the differences in radial positions between the workpiece and the artifact.