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A Health Monitoring Method for CNC Machine Tool

A CNC machine tool and health monitoring technology, applied in the field of CNC systems and machine tools, can solve the problems of untimely and inaccurate judgment of the health status of CNC machine tools, and achieve the effect of convenient inspection and reasonable comparison

Active Publication Date: 2018-09-21
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the object of the present invention is to provide a health monitoring method for CNC machine tools, wherein the basis for calculating the health index of the key CNC machine tools, the calculation method of the health index, and the display of the health index Compared with the existing technology, it can effectively solve the problem of untimely and inaccurate judgment of the health status of CNC machine tools, and the health index of CNC machine tools is obtained through visual display, which improves the interaction effect between machine tools and people.

Method used

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  • A Health Monitoring Method for CNC Machine Tool
  • A Health Monitoring Method for CNC Machine Tool

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Embodiment 1

[0037] Such as figure 1 Shown, the health monitoring method of the numerically controlled machine tool among the present invention, comprises the following steps:

[0038] Step 1: Taking the CNC machine tool adopting a vertical machining center as an example, run a specific self-inspection G code (that is, a self-inspection G command) and collect operating status data.

[0039] For vertical machining centers, the content of the work task data, that is, the self-inspection G command, is shown in Table 1, Table 2, and Table 3 below:

[0040] Table 1 The single-axis operation parameters of the feed axis for the vertical machining center

[0041] project

Operating interval

running speed

Number of runs

X axis

-500-0

3000mm / min

2

Y axis

-100-290

3000mm / min

2

Z axis

-250-40

3000mm / min

2

[0042] Table 2 Operating parameters for the dual-axis circular motion of the vertical machining center

[0043] ...

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Abstract

The invention discloses a health monitoring method for a numerical control machine tool, and the method comprises the steps: (1), executing a self-inspection G instruction, and collecting the operation state data; (2), building the mapping relation between the collected operation state data and the self-inspection G instruction, and forming an instruction domain mapping ensemble; (3), dividing the instruction domain mapping ensemble according to the self-inspection G instruction, extracting the instruction domain mapping under the self-inspection G instruction, obtaining the operation state data under the self-inspection G instruction, calculating an actual characteristic value according to the operation state data, comparing the actual characteristic value with a standard characteristic value, and obtaining a health index through calculation. The method improves the calculation basis of a key health index of the numerical control machine tool, the calculation method of the health index and the display mode of the health index, and can effectively solve a problem that the judgment of the health condition of the numerical control machine tool is not timely and accurate. Moreover, the obtained health index of the numerical control machine tool is displayed in a visualized manner, thereby improving the interaction effect of the numerical control machine tool with a person.

Description

technical field [0001] The invention belongs to the technical fields of numerical control systems and machine tools, and more specifically relates to a health monitoring method of a numerical control machine tool, which can be used for real-time monitoring and display of the health state of the numerical control machine tool. Background technique [0002] The reliability of machine tools, fault diagnosis and prediction, performance evaluation and maintenance support have received extensive attention from scholars at home and abroad. In order to ensure the safe and reliable operation of CNC machine tools, minimize downtime and prolong the working cycle of machine tools, a lot of research has been done on machine tool fault diagnosis methods at home and abroad. a direction of development. After-the-fact maintenance will not only cause great damage to the machine tool itself, but also cause losses to the enterprise and even threaten the personal safety of workers; regular main...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/406
CPCG05B19/406
Inventor 陈吉红周会成许光达马玉奇周振胡震宇
Owner HUAZHONG UNIV OF SCI & TECH
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