000000939 001__ 939
000000939 005__ 20141118153510.0
000000939 04107 $$acze
000000939 046__ $$k2002-05-13
000000939 100__ $$aSoldát, Jaroslav
000000939 24500 $$aKOMPENZACE TEPELNÝCH DEFORMACÍ OBRÁBĚCÍHO CENTRA
000000939 24630 $$n8.$$pEngineering Mechanics 2002
000000939 260__ $$bInstitute of Mechanics and Solids, FME, TU Brno
000000939 506__ $$arestricted
000000939 520__ $$2cze$$aAbstrakt: This work aims to reduce the thermal errors of the machining centres by indirect compensation methods. Thermal effects can form more than 70% to the overall displacement error by using HSC technology. To compensate thermal expansion, exact measurements of machine thermal behaviour, as a function of temperature, are necessary. The thermal expansion of the axes is largely proportional to the temperature. The temperatures, measured by the Pt 100 thermistor, are saved in the PLC of machining centre. Thermo-elastic deformations are calculated from the representative temperature-measuring points in the machine tools structure. The number of measuring points is optimised. We can directly determine the amount of expansion by multiplying the temperature value by a certain factor. The calculated deflections are compensated by means of the CNC of machine tools. I apply two different methods to solution of deflection in the end point of the tool. My aim was to reduce thermal deflection by 3/4 and this aim has been reached.
000000939 520__ $$2eng$$aAbstract: This work aims to reduce the thermal errors of the machining centres by indirect compensation methods. Thermal effects can form more than 70% to the overall displacement error by using HSC technology. To compensate thermal expansion, exact measurements of machine thermal behaviour, as a function of temperature, are necessary. The thermal expansion of the axes is largely proportional to the temperature. The temperatures, measured by the Pt 100 thermistor, are saved in the PLC of machining centre. Thermo-elastic deformations are calculated from the representative temperature-measuring points in the machine tools structure. The number of measuring points is optimised. We can directly determine the amount of expansion by multiplying the temperature value by a certain factor. The calculated deflections are compensated by means of the CNC of machine tools. I apply two different methods to solution of deflection in the end point of the tool. My aim was to reduce thermal deflection by 3/4 and this aim has been reached.
000000939 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000000939 7112_ $$aEngineering Mechanics 2002$$cSvratka (CZ)$$d2002-05-13 / 2002-05-16$$gEM2002
000000939 720__ $$aSoldát, Jaroslav
000000939 8560_ $$ffischerc@itam.cas.cz
000000939 8564_ $$s973004$$uhttps://invenio.itam.cas.cz/record/939/files/Soldat.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000000939 962__ $$r451
000000939 980__ $$aPAPER