Numerically-controlled machine tool energy consumption data test and analysis device and method

Abstract

The invention provides a numerically-controlled machine tool energy consumption data test and analysis device and method and belongs to the technical field of energy consumption test. An energy consumption data acquisition device can be used for testing power and energy consumption of a numerically-controlled machine tool in real time through simple operation. The technical scheme includes that the energy consumption data acquisition device comprises circuit boards, current sensors, voltage sensors, precision resistors, a socket, data acquisition cards, a sensor power supply, an external casing and a computer; circuits connected with the current sensors, the voltage sensors, the precision resistors and the sensor power supply are used for testing current and voltage of the numerically-controlled machine tool, the data acquisition cards and the external casing are used for acquiring data of tested current and voltage, and the computer can be used for processing the acquired data to acquire real-time energy consumption data of the machine tool and storing the real-time energy consumption data in a database. The energy consumption acquisition device is high in sampling frequency, large in test range, high in test precision, moderate in price, simple in structure, convenient in use, capable of monitoring power and energy consumption of various machine tools and wide in applicationprospect in terms of low carbon and energy consumption.

Description

technical field [0001] The invention discloses a device and method for testing and analyzing energy consumption data of a numerically controlled machine tool, belonging to the technical field of energy consumption testing. Background technique [0002] As the basis of all mechanical processing and manufacturing, CNC machine tools consume a lot of electric energy. Accurately calculating the energy consumption of machine tools in the machining process is of great significance and is the first step to realize low-carbon manufacturing. [0003] The CNC machine tool spindle system and each feed system are usually equipped with frequency converters to adjust the speed of the spindle and feed system by changing the voltage and current frequency. The frequency range of the input current of the frequency converter is very wide, which exceeds the measurement range of the power frequency, and the three-phase current is often unbalanced and contains a large number of harmonic components...

AI Technical Summary

Problems solved by technology

Ordinary simple power meter is suitable for measuring the electric power near the power frequency, but it is difficult to accurately measure the electric power of CNC machine tools after frequency conversion

High-end power analyzers have a wide measurement frequency range (0.1Hz-1MHz), but are expensive, up to hundreds of thousands of yuan per unit

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