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STEP-NC decoder development method of open numerical control system based on Linux

A STEP-NC, numerical control system technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as limiting production efficiency, achieve smooth tool movement, improve information utilization, open and intelligent development solid effect

Active Publication Date: 2021-08-24
FUZHOU UNIV
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Problems solved by technology

Since the G / M code does not contain information on workpiece characteristics such as part material, part geometry, and tool trajectory planning, its shortcomings have gradually been revealed in the development of high-precision CNC, which limits the improvement of production efficiency.

Method used

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  • STEP-NC decoder development method of open numerical control system based on Linux
  • STEP-NC decoder development method of open numerical control system based on Linux
  • STEP-NC decoder development method of open numerical control system based on Linux

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Embodiment Construction

[0032] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0033] figure 1 It is a frame diagram of the STEP-NC decoder development method for the Linux-based open numerical control system of the present invention. A kind of STEP-NC decoder development method of the open numerical control system based on Linux of the present invention, comprises the development to the reading module of STEP-NC decoder, data mapping module, storage module, planning module; Described reading The module can read the STEP-NC program file; the data mapping module can establish the data structure mapping principle of the STEP-NC code, and define the data type mapping relationship; the storage module can map and store the EXPRESS language description entity as a C++ language description The class; the planning module can plan the tool trajectory including coordinate values ​​and direction vector information, and is use...

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Abstract

The invention relates to a STEP-NC decoder development method of an open numerical control system based on Linux. Through analysis of an STEP-NC data model structure, a decoding method of STEP-NC codes of an open type numerical control system based on Linux is researched, a decoding working process of an STEP-NC decoder is designed, and functional modules such as a reading module, a data mapping module, a storage module and a planning module of the STEP-NC decoder are developed. The STEP-NC decoder is integrated in the open type numerical control system based on Linux, so that the configurable NC decoding mode is realized. The STEP-NC decoder developed by the method can identify 2.5 D manufacturing features defined in the ISO 14649 standard, extract geometric information and processing information, and generate a tool path which can be used for actual processing.

Description

technical field [0001] The invention relates to the technical field of numerical control automation, in particular to a method for developing a STEP-NC decoder of an open numerical control system based on Linux. Background technique [0002] NC decoding is an important part of realizing the automation of the NC system. It can realize the decoding of the NC program code, obtain relevant NC processing information, and realize the automatic processing of the NC system. At present, the two most commonly used NC decoding schemes at home and abroad are based on ISO 6983 standard code (G / M code) and ISO 14649 standard code (STEP-NC code). Since the G / M code does not contain information about workpiece characteristics such as part material, part geometry, and tool trajectory planning, its shortcomings have gradually been revealed in the development of high-precision CNC, which limits the improvement of production efficiency. The data model of the STEP-NC code is oriented to the wor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/408
CPCG05B19/408G05B2219/32043
Inventor 林述温龙星兴李泽众田光清
Owner FUZHOU UNIV
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