Patent ID: 8103376
Filing Date: 2012-01-24
Classification: B23Q,G06K

Abstract:
1. A method for on-machine 2-dimensional (2-D) contour measurement, comprising: cutting an object by a cutting tool of a computer numerical control (CNC) machine tool according to a numerical control code; retrieving an image of the object by an image retrieving apparatus; generating an object contour according to the image according in a contour detecting method; generating a theoretical contour according to the numerical control code; superimposedly placing the object contour and the theoretical contour in a coordinate defining a plurality of theoretical cutting points of the theoretical contour in a coordinate system; defining a plurality of real cutting points of the object contour in the coordinate; obtaining each of matching real cutting points according to each of the theoretical cutting points; and identifying each manufacturing error of each of the theoretical cutting points according to each of the theoretical cutting points and each of the matching real cutting points.