A diamond tool cutting edge wear detection module and detection method

Abstract

The invention discloses a detecting module and a detecting method for abrasion of a cutting edge of a diamond tool, and belongs to the technical field of ultra-precise processing and detecting. The module comprises a 3R high-precision pneumatic conversion clamp, an adapter plate, a microscope tube Z-direction motion table, a monocular zoom microscope tube, a coaxial point light source, a microscope objective, a CCD camera, a spectral confocal sensor, a spectral confocal controller, a spectral confocal sensor Z-direction motion table, an image acquisition card, a motion controller and a PC processor. A composite measuring means of micro-vision and spectral confocal measurement is adopted, and XY axes of a processing machine tool are utilized to perform quick scanning analysis on abrasion ofthe cutting edge of the diamond tool; relevance between abrasion depth of the cutting edge and image grey is utilized, and two-dimensional data of the image is restored to a two-dimensional diagram through an SFS method, and is subjected to data fusion with three-dimensional data of spectral confocal measurement, so that evaluation on abrasion of the cutting edge is realized. The detecting modulecan quickly integrate on an ultra-precise processing machine tool, and realizes greater-range three-dimensional abrasion detection of the tool surface.

Description

technical field [0001] The invention belongs to the technical field of ultra-precision machining and detection, and in particular relates to a diamond tool cutting edge wear detection module and a detection method. Background technique [0002] Due to its high hardness, good mechanical properties and thermal conductivity, diamond has good anti-bonding, corrosion and excellent chemical stability in the metal cutting process, and is currently the most ideal tool material for ultra-precision cutting. Because it can obtain a sharp cutting edge through micro-grinding, in metal ultra-precision machining, nano-level machining accuracy and surface roughness can be obtained. [0003] In the process of metal ultra-precision machining, the edge of the diamond tool is subjected to high mechanical pressure and cutting temperature, and the contact with the metal material during the cutting process dissolves, resulting in a decrease in the surface hardness and wear resistance of the diamon...

AI Technical Summary

Problems solved by technology

The occurrence of tool wear also affects the machining quality of the workpiece

[0004] The current diamond tool wear detection method is mainly through the atomic force microscope, and the nano-scale scanning of the cutting edge area by the atomic force probe to obtain a three-dimensional image of the cutting edge area, and then judge the degree of tool wear, but the scanning range of the atomic force scanning is small, generally in the It is difficult to achieve large-scale wear observation, and it is difficult to achieve high integration of atomic force measurement equipment on the machine tool, and it is generally used for offline measurement; in addition, optical imaging is also used for diamond tools. Surface measurement, but visible light imaging is limited by the imaging photosensitive chip pixel and photosensitive sensitivity, as well as the existence of detection noise, the measurement reliability of microscopic wear is low, generally used for the measurement of tool wear above the micron level, with the help of other images 3D recovery algorithm, it is difficult to accurately evaluate the wear degree of diamond tools on a 3D scale

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