Measuring and calculating the computer numerical control lathe’s cutting power and total electric power consumption based on servo parameters

Abstract

Improving the energy efficiency of machine tools is the goal of sustainable development of the mechanical manufacturing industry. The key is to measure or calculate energy efficiency conveniently and accurately. This article proposes a method of calculating power by reading the computer numerical control system's servo parameters from its currentloop and speed-loop, establishing the relationships between cutting power, total power, and servo parameters, and using these relationships for power prediction. Experiments were done on a computer numerical control lathe. The result shows that this method has high precision, does not need additional sensors, and is independent of cutting process parameters, workpiece material, heat treatment state, and tools. This method may be used for developing a cutting power management module integrated in the computer numerical control system with real-time monitoring power consumption because the computer numerical control system can read servo parameters real time.

Effect of technological parameters on energetic efficiency when planar milling heat-treated oak wood

“…Zein (2012) and Sudarsan et al (2010) show in the results of machining centre energy consumption research that the energy for the cooling and control system can be considered a constant value, and there is a strong correlation between the input power to the power supply module and the input power to the main spindle drive. The drive of the positioning servo system consumes several times less energy than the drive of the main spindle of the machine tool (Liu et al 2017).…”