Automatically-aligned numerical control cutting method for pre-printed image plate

Abstract

The invention discloses an automatically-aligned numerical control cutting method for a pre-printed image plate, which comprises the following steps of: A, extracting the profile of an image to be printed, and generating an initial numerical control machining code according to the extracted image; B, adding more than two identical identifying images at the blank of the periphery of the image to be printed; C, printing the image to be printed with the identifying images on the plate; D, clamping the pre-printed image plate obtained by the step C on a workbench of a numerical control cutting machine, and identifying the positions of the identifying images on a machine tool through a camera fixed on a main shaft of the numerical control cutting machine so as to establish the relation of conversion of coordinates between an image coordinate system and a cutting machine coordinate system; and E, editing the initial numerical control machining code obtained by the step A according to the relation of the conversion of coordinates obtained by the step D to obtain a directly-positioned numerical control machining code, so that the numerical control cutting machine cuts according to the obtained numerical control machining code. The automatically-aligned numerical control cutting method has the advantages of low hardware cost, simple and convenient operation and high alignment accuracy.

Description

technical field [0001] The invention relates to a numerical control cutting method, in particular to a numerical control cutting method with automatic alignment. Background technique [0002] Pre-printed image plate CNC cutting is to print the image on the flat plate in advance, and then cut the plate along the edge of the image outline on the machine tool to obtain a product whose shape is consistent with the outline of the printed image. This technology is practical and intuitive, and the processed products have the characteristics of beautiful appearance and strong three-dimensional effect, so it has demand and application in many fields, such as decorations, product packaging, advertising industry, etc. General plate cutting CNC machining usually first writes the CNC machining program code of the pattern or shape to be cut, and then fixes the plate blank on the machine tool and roughly determines the machining zero point of the part to process. Different from this kind ...

AI Technical Summary

Problems solved by technology

This method can adapt to the difference of the cut image within a certain similarity range, but due to the low accuracy of the existing contour recognition technology, the processing accuracy of this method is not high, and when the image difference is large, it cannot Self-calibration and alignment, unable to complete the automatic cutting of the image on the material

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