A tool damage detection method based on visual inspection of CNC machine tools

Abstract

The invention provides a cutter damage degree detection method based on numerically controlled machine tool visual inspection. The cutter damage degree detection method comprises the following steps of: step A. obtaining the image of a processed part; step B. carrying out filtering noise-elimination treatment on the image, and then carrying out grey level transformation to obtain a pretreated image; step C. finding and locating in the pretreated image according to preset characteristic information to complete the cutting remainder of the processed part, thereby obtaining a part picture; step D. carrying out edge detection on cut marks, and drawing an edge contour line; step E. calculating the size of the edge width of a cutter according to the edge contour line; and step F. comparing the practical width of the cutter with a preset theoretical standard value, and then outputting a detection result. The cutter damage degree detection method has the beneficial effects that only original optical locating equipment in a numerically controlled machine tool is needed, and the indirect detection of the cutter damage degree can be realized by using the method provided by the invention after the processed part is shot; additional optical detection equipment does not need to be installed; and the cutter damage degree detection can be realized by implementing the method on the basis of existing equipment.

Description

technical field [0001] The invention relates to the field of detection methods for numerically controlled machine tools, in particular to a method for detecting tool breakage based on visual detection of numerically controlled machine tools. Background technique [0002] CNC machine tool is an automatic machine tool equipped with a program control system. After the numerical control device is processed, various control signals are sent by the numerical control device to control the movement of the machine tool, and the parts are automatically processed according to the shape and size required by the drawing. . During the above-mentioned processing, the tool installed in the CNC machine tool needs to cut the part according to the preset program. Since the tool itself will be damaged during the cutting process, it is necessary to monitor the damage degree of the tool. To ensure For the accuracy of parts cutting, when the damage of the tool exceeds a certain level, the tool ne...

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a tool damage detection method based on the visual inspection of CNC machine tools, aiming at solving the need to rely on additional visual inspection equipment for the detection of tool wear of CNC machine tools in the prior art, Increase the overall cost, take up more space, and cause inconvenience to production

Images