| Summary: | Background. The high efficiency of the use of automated control systems for
abrasive processing in mass and large-scale production makes it possible to increase
productivity up to 70%, as well as to increase the metal removal rate by 30-50% while stabilizing
the quality and geometric parameters of processing. Electric drives used in CNC
machines consume a significant amount of energy, so energy costs must be taken into account
when choosing them. Estimation of energy consumption requires studying the parameters
of the operation of the feed electric drive and the main movement and obtaining
information about the current values of technological modes at a certain load. Materials
and methods. When determining the coefficients of performance (COP), carried out when
assessing the energy efficiency of CNC machines, methods of direct and indirect power
measurement were used. Results. It has been established that the higher the efficiency value,
the lower the losses and power consumption of the electric motor and the higher its energy
efficiency, the less the motor consumes energy, heats up less, it has a longer service
life, which leads to an increase in the MTBF. Conclusions. It is recommended to use IE3
energy efficiency class motors in CNC grinders, because they can operate without feedback
with an open-loop control system and with positioning devices. This will save on feedback,
which is also an undoubted advantage.
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