The studies will be carried out using optical metrology methods on a Walter Helicheck inspection machine in reflected light and a number of images were stored to form a statistical sample. Established new indicators and criteria for grinding efficiency based on image processing of the helical groove of the end mill. As a result, recommendations for the selection of optical control techniques were made for the first time at the intermediate stage of technological preparation for production, in real time, and after processing. In this work, for the first time, we prove the possibility of determining the camera displacement pith distance during continuous scanning of the profile of a helical surface in a radial section, the measurement accuracy and recreating a three-dimensional model of the object. As a result of the work of the new algorithm using the Haar-wavelet with new indicators, it was established that the actual one is located inside the focal zone, which proves the possibility of applied application of the method of monitoring the shape of helical flute of end mills using computer vision. The measurement accuracy of the helical flute increased from 4 to 12% along its profile.
A new approach to the automated design and control of ceramic end mills is proposed, which allows creating a group of structures for machining a range of products from various hard-to-cut materials in different modes. The method compares favorably with the existing ones by creating new cutting tool with increased performance, providing an increase in the resistance of mill to brittle fracture up to 2-3 times. The design approach includes a comprehensive measurement module for quality control of products with a reduction in the complexity of measurement up to 10 times in terms of time.
Shaped plates with a special shape of texture on the front surface are widely used in the production of products of complex shapes from heat-resistant materials. An important stage of technological preparation for the formation of a system for the automated production of plates using laser ablation is the assignment of recommendations for the shape of the front surface. The technical result is ensured by the rational shape of the front surface of the replaceable multifaceted plate, which meets the requirements of manufacturability and increased performance when using it. Placement on the front surface of a microrelief, which is formed by a set of holes in the form of a group of micro-holes with a radius of 20-40 μm, a depth of 20-40 μm, which ensures the placement and retention of a suspension based on molybdenum disulfide during drilling, and the coordinates of the centers of the holes are determined by new analytical dependencies. This technological solution will significantly increase the speed of writing programs to control machines for laser ablation.
Modern methods of control geometry parameters of cutting tools often incorporate measuring operations performed using high-precision CCD cameras which work on the contrast-detection method. The key advantages of this method are the high speed of measurements, the simplicity of using general method on modern CNC measuring systems and a wide range of possibilities for controlling profile locations of surfaces. However, using this method largely depends on the resolution of the camera's ability and the size of the controlled area, which in turn imposes significant restrictions on the measurement of surface areas which are less than 10% of the frame area. This paper proposes a new way to measure the area of profile section of microtool surfaces, based on the identifying of a focused area throughout the entire frame area. This method makes it possible to recognize the nature of the focus distribution at different camera positions, which in turn makes it possible to measure the area of profile section of microtool surfaces when the size of the controlled area is less than 10% of the frame size to use the contrast autofocus method to incomparably increase.
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