Acquisition and dumping method and system thereof for machining process data of numerical control system

Abstract

The invention discloses an acquisition and dumping method and a system thereof for machining process data of a numerical control system. The acquisition and dumping method comprises the following steps: setting the types of data to be acquired before machining is started, wherein the types of the data comprise instruction data inside the numerical control system; in the machining process, recording data corresponding to the types of the data to be acquired in a data buffer area by taking one control period of the numerical control system as a period; dumping the data in the data buffer area to other storage equipment through a communication interface. Compared with the prior art, the acquisition and dumping method can effectively make up the defect that the machining process cannot be comprehensively reflected through the numerical control system as internal instruction data of the numerical control system are acquired and the types of the acquired data are comprehensive; the data are continuously and periodically acquired, and sampling signals fed back from a sensor and the internal instruction data are synchronously acquired, so that the characteristics of machining tasks can be sufficiently reflected, and relatively direct and accurate basis is provided for analysis on the numerical control machining process.

Description

technical field [0001] The invention belongs to the technical fields of numerical control systems and machine tools, and more specifically relates to a method and system for collecting and dumping data in the machining process of a numerical control system. Background technique [0002] In CNC machining, it is necessary to collect and record various real-time data of the production site, so that the production managers and site operators can monitor, diagnose and control the production process in real time, which plays an important role. At present, there are two types of methods for collecting data in the CNC machining process. One is through the log file records of the CNC system, which can only collect event signals in the CNC machining process, such as startup, shutdown, startup, alarm information, program execution number, and tool number. , tool replacement, etc., are intermittent and discontinuous, and these discontinuous event signals cannot be associated with the pr...

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the object of the present invention is to provide a method and system for collecting and dumping data in the machining process of a numerical control system, wherein the data collection type, collection and dumping steps, etc. are improved Compared with the existing technology, it can not only collect the feedback signal of the sensor of the CNC machine tool, but also effectively solve the problem that the CNC system cannot collect and record the internal command data. The sampling signal is collected synchronously with the internal instruction data, which can fully reflect the characteristics of the processing task and provide a more direct and accurate basis for the analysis of the CNC machining process

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