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On-line detecting method of frequency-changing speed-adjusting numerically-controlled machine tool main shaft motor output power

A technology for spindle motors and CNC machine tools, which is used in measuring/indicating equipment, metal processing machinery parts, metal processing equipment, etc.

Active Publication Date: 2014-07-16
CHONGQING UNIV
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  • Abstract
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Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies existing in the prior art, the present invention provides an online detection method for the output power of the spindle motor of the CNC machine tool with variable frequency speed regulation, by measuring the input power, voltage and frequency of the spindle motor and combining the rated value and no-load value of the spindle motor , the output power of the spindle motor in different states can be detected online, so as to solve the problem in the prior art that it is difficult to effectively detect the output power of the spindle motor of the variable frequency speed control CNC machine tool online

Method used

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  • On-line detecting method of frequency-changing speed-adjusting numerically-controlled machine tool main shaft motor output power
  • On-line detecting method of frequency-changing speed-adjusting numerically-controlled machine tool main shaft motor output power
  • On-line detecting method of frequency-changing speed-adjusting numerically-controlled machine tool main shaft motor output power

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Embodiment Construction

[0038] The main transmission system of frequency conversion speed control CNC machine tool is composed of three parts: frequency converter, spindle motor and spindle drive system, such as figure 1 As shown, P in is the total power input to the inverter, P 1 is the total power of the input spindle motor, P 2 is the output power of the spindle motor, P c is the total power input to the processing system. The spindle drive system transmits the energy of the spindle motor to the processing system to drive the actuator (tool or workpiece) to move. The processing system refers to the system composed of tools, workpieces, etc. The processing process refers to the process of processing the workpiece by the processing system. This process will cause changes in the energy loss of the main drive system. Because the spindle motor of the machine tool has been fixedly connected with the machine tool, it is necessary to measure the output power P of the spindle motor 2 raletively hard. ...

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Abstract

The invention provides an on-line detecting method of frequency-changing speed-adjusting numerically-controlled machine tool main shaft motor output power. By obtaining the needed basic data for detecting frequency-changing speed-adjusting numerically-controlled machine tool main shaft motor output power and the expression of main shaft motor no-load power and frequency, only the real-time input power, the input voltage and power supply frequency of a frequency-changing speed-adjusting numerically-controlled machine tool main shaft motor are detected on line, and the output power of the main shaft motor can be detected on line in real time. An on-line detecting process is simple and easy to operate, and the method is commonly suitable for existing frequency-changing speed-adjusting numerically-controlled machine tools.

Description

technical field [0001] The invention belongs to the technical field of energy saving of machine tools, and relates to an online detection method for the output power of a spindle motor of a frequency conversion and speed regulation numerically controlled machine tool. Background technique [0002] As the research and application of machining energy efficiency is rapidly rising around the world, it is necessary to analyze the energy consumption of each component or link of the machine tool. When conducting machine tool energy consumption tests, machine tool motor efficiency tests, and researching machine tool energy-saving technologies, it is necessary to detect the output power of the machine tool spindle motor. Since the spindle motor of the machine tool has been fixedly connected with the machine tool, it is very difficult to directly detect the output power of the spindle motor. [0003] CNC machine tool is the abbreviation of Computer numerical control machine tools. CN...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q17/00
CPCB23Q17/00
Inventor 刘飞刘培基刘高君
Owner CHONGQING UNIV
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