Návrh systémů řízení CNC laserového gravírování

Abstract

This thesis describes the optimization and control of the manufacturing process of laser engraving of photographs on wooden surface. The main goal is to improve the quality of digital photography transfer to the wood surface by gradual wood burning. The main quality indicators are the number of distinctive shades and their uniform distribution across a range of shades according to the input photo. Several control and optimization subsystems are described and evaluated in the thesis. According to preliminary testing and research of current state of laser engraving technology, these subsystems have the potential to improve the quality of production. Main subsystems are the use of the mathematical model of the machine for setting its optimum production speed (step frequency) and subsequent implementation of the vibration damping algorithm. Other subsystems that are solved at work are calibration system, optimal filtration of input graphics and utilization of simulation of the resulting product for optimal production parameters setup. This work is a description of a complex system with a new approach, which uses simulation feedback for the manufacturing process of laser engraving of photographs into wood. A design of the overall control system has been created and its individual parts have been further described. All subsystems have been evaluated and their contribution to improving product quality, if possible, has been indicated.