Projeto da unidade de controle do sistema mecatrônico de uma minimáquina-ferramenta multifuncional híbrida cnc

Abstract

The design of a multifunctional precision CNC mini-machine tool made of synthetic granite has emerged to address the demand for hybrid manufacturing systems, integrating subtractive and additive processes within a single machine-tool to meet advanced manufacturing requirements of Industry 4.0. The goal was to develop an evolutive structural design approach for a synthetic granite mini-machine tool, based on the research of Rodrigues (2022) and Alves (2022). Design Methodology was applied in the electric and mechatronic design. Firstly, the kind of applied ballscrews and electric motors was assessed, continuing the work developed by Alves (2022). In a posteriori time the torque needed of each axis, inertia ratio, resolution, system control unit and the data transmission method between the peripherals devices. The design requirements were: three orthogonal linear axes with precision guideways and ballscrews of recirculating elements; prediction of expansion of the mechatronic system; addition of fourth and fifth axes and new peripheric devices; 100 N/μm static stiffness; a vertical spindle; minimum positioning resolution of 1μm; nominal feed rate of 100 mm/s; numeric control unit based on LinuxCNC; updated communication protocols in the international market, in the way of get a marketable product that meets the industrial requirements; closed-loop system between motos and driver controllers. The results include three evolutive prototypes, being the last one detailed and analyzed theoretic in the way of the defined mechatronic assembly and the data transmission protocol, showing that it was possible to achieve a mechatronic assembly that meets the design requirements. The design will require experimental trials of data protocol transmission performance and metrological tests of the mechatronic assembly, continuing the FAPEMIG APQ-01759-17 Research Project.