Machine tool health state rapid checking method

A technology of health status and rapid inspection, applied in computer control, program control, instruments, etc.

Active Publication Date: 2015-07-29
HUAZHONG UNIV OF SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The invention provides a method for quickly checking the health status of machine tools based on HNC-8 numerical control system, aiming to solve the defects of data collection of health status information of numerical control equipment and separation of numerical control system, online collection-offline analysis

Method used

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Embodiment Construction

[0026] In order to make the purpose, implementation steps and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific examples.

[0027] In this embodiment, the monitoring objects are the axis current (spindle, X axis, Y axis), axis following error (X axis, Y axis), and vibration of the spindle and worktable of the CNC machine tool.

[0028] Step 1: According to the inspection object, place a vibration sensor in the two directions perpendicular to the bearing seat of the main shaft and in the vertical direction of the workbench, and place a temperature sensor in the bearing seat and the nut seat near the motor end of each shaft, and place a temperature sensor in the two directions of the main shaft Put temperature sensors into the end bearing housings respectively, and connect all temperature sensors to the HIO-1075 board unit of the CNC system I / O module, and connect all vibra...

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Abstract

The invention discloses a machine tool health state rapid checking method. According to the method, a HuaZhong HNC-8 numerical control system is utilized, a sensor is arranged into each position that is required to be checked in a machine tool in advance, and then sampling channel information is configured in an oscilloscope sampling interface; health checking parameters are configured in a diagnosis meson interface of the numerical control system; then machining processes are selected, a circulating start button is pressed down to perform on-line sampling, and the system obtains feature values of sampling information by means of a signal analysis method; finally, comprehensive comparison with standard data is performed, health assessment of the machine tool is performed, and a result is displayed in a graphical mode. By means of the machine tool health state rapid checking method, signals of outer sensors are directly transmitted into the numerical control system through a port of the numerical control system, on-line collecting and analysis can be achieved, a mode of traditional external measurement and off-line modeling analysis is changed, and health checking efficiency, practicability and using range of the numerical control machine tool can be increased.

Description

technical field [0001] The invention discloses a method for quickly checking the health state of a machine tool, and relates to the field of numerical control machining diagnosis. Background technique [0002] CNC machining, that is, a process method for processing parts on a CNC machine tool, is itself a process method. The advantage of this method over traditional machining is that it uses digital information technology to solve problems such as complex and changeable parts, small batches, miniaturization, and high precision, thereby realizing automation and intelligence in the processing field. [0003] On the other hand, CNC machine tools integrate mechanical, electrical, hydraulic and pneumatic modules, and have the remarkable characteristics of knowledge fusion and technology intensive. If a fault occurs during use, it is difficult to diagnose, especially focusing on the detection and diagnosis of mechanical parts. It is difficult to collect relevant effective informa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/406
CPCG05B19/406G05B2219/37001G05B2219/37085G05B2219/37434G05B2219/37634
Inventor 向华陈吉红周振许光达周浩
Owner HUAZHONG UNIV OF SCI & TECH
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