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A numerical control system and function technology, applied in the field of numerical control, 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: 2020-02-21
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 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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