Numerical control system online monitoring method

Abstract

The invention discloses an online monitoring method for a numerical control system, and the method comprises the following steps: S1, searching variable data items, verifying whether IDs of the variable data items exist in a numerical control system or not, and verifying the correctness of the IDs if the IDs of the variable data items exist in the numerical control system; S2, obtaining a correctvariable data item with an ID from the numerical control system; S3, calculating the accurate time of obtaining the variable data item each time; S4, drawing a curve graph of the acquired variable data items changing with time; S5, storing the obtained variable data item direction into a table according to the sampling frequency. According to the online monitoring method for the numerical controlsystem, the data of the numerical control machine tool is collected through the dynamic data exchange (DDE) technology, and the data of the machining process can be efficiently collected in real time;a machining process signal can be dynamically displayed in the data acquisition process, so the machining trend can be monitored in real time, and the real-time machining state can be accurately controlled; and the data is stored in the EXCEL according to the acquisition frequency, so long-term data retention and further data processing and analysis can be facilitated.

Description

technical field [0001] The invention belongs to the technical field of numerical control, and in particular relates to an online monitoring method of a numerical control system. Background technique [0002] With the rapid development of my country's aviation, aerospace and other industries, intelligent manufacturing has become an inevitable trend in the development of the manufacturing industry. As the key equipment of the modern manufacturing system, the numerical control machine tool's function strength and performance are important indicators to measure the level of the country's manufacturing industry and the degree of industrial modernization. Machine tools will generate a large amount of process data during the machining process. By processing, analyzing and mining the data, intelligent manufacturing mainly performs state perception, analysis and decision-making optimization based on this information. Therefore, data is the basis of intelligent decision-making. Reason...

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Problems solved by technology

For example, Siemens 840Dsl CNC system. However, the machining process data of the CNC system is obtained by measuring the relevant measuring equipment on the machine tool. The development is difficult and the data collection is limited, which is not conducive to the online monitoring of the CNC system.

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