A method for on-line monitoring of numerical control system
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A numerical control system and function technology, applied in the numerical control field, can solve the problems of unfavorable numerical control system online monitoring, difficult development, limited data collection, etc., and achieve the effect of real-time monitoring of processing trends
Inactive Publication Date: 2021-03-30
CHANGAN UNIV
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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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[0025] An online monitoring method of a numerical control system, comprising:
[0026] S1, search for variable data items, and verify whether the ID of the variable data item exists in the numerical control system, and if it exists, verify the correctness of its ID;
[0027] S2, obtaining variable data items with existing and correct IDs from the numerical control system;
[0028] S3, calculating the precise time for obtaining variable data items each time;
[0029] S4, drawing a curve diagram of the obtained variable data item changing with time;
[0030] S5. Store the obtained variable data items in a table according to the sampling frequency.
[0031] Further, in S1, variable data items include: NC program name, part number, part processing start time, part processing end time, cutting time, spindle speed, feed rate, machine coordinates and tool number.
[0032] Further, in S2, variable data items in the numerical control system are acquired through dynamic data exchange...
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[0037] Such as figure 1 , 2 As shown, the specific implementation of the online monitoring method of the numerical control system of the present invention is as follows:
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Abstract
The invention discloses an on-line monitoring method of a numerical control system, comprising: S1, searching for variable data items, and verifying whether the ID of the variable data item exists in the numerical control system, and verifying the correctness of the ID if it exists; S2, from the numerical control system Obtain the variable data item whose ID exists and is correct; S3, calculate the precise time of obtaining the variable data item each time; S4, draw the curve of the obtained variable data item over time; S5, transfer the obtained variable data item to Stored in the table according to the sampling frequency. The online monitoring method of the numerical control system of the present invention collects numerical control machine tool data through the dynamic data exchange technology (DDE), can collect the processing process data efficiently in real time; can dynamically display the processing process signal during the data collection process, and is beneficial to monitor the processing trend in real time , to accurately control the real-time status of processing; by storing data in EXCEL according to the collection frequency, it can facilitate long-term data retention and further processing and analysis of data.
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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