ACCURACY COMPENSATION METHOD, SYSTEM, AND DEVICE

摘要

A method for applying accuracy compensation to a computer numerically controlled (CNC) machine can compensate control program that controls the CNC machine. The method recognizes an actual outline of the product using an image of product produced by the CNC machine controlled by the control program, and further obtains an ideal outline of the product. The method obtains compensation values by computing coordinate differences between points of the actual outline and points on the ideal outline, and compensates the control program using the compensation values.

主权项

1. An accuracy compensation method executable by at least one processor of a computing device, the method comprising:
obtaining an image of a product; recognizing an actual outline of the product according to the image of the product, and determining coordinates of points of the actual outline; obtaining an ideal outline of the product; aligning the actual outline and the ideal outline of the product, and computing minimum distances from each of the points of the actual outline to the ideal outline; determining points on the ideal outline, each of which corresponds to one of the points on the actual outline, according to the minimum distances, and obtaining coordinates of the points on the ideal outline; computing coordinate differences between each of the points of the actual outline and each of the corresponding points on the ideal outline; assigning compensation values of the points on the ideal outline based on the coordinate differences; obtaining a control program that controls a computer numerically controlled (CNC) machine to produce the product, and obtaining a measurement path of a cutting tool of the CNC machine according to the control program; determining points on the measurement path corresponding to the points on the ideal outline; generating a compensated measurement path by compensating the points on the measurement path using the compensation values; and correcting the control program according to the compensated measurement path.