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GB/T 38267-2019: Numerical control system of machine tool - Programming code
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Numerical control system of machine tool - Programming code
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GB/T 38267-2019
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Basic data | Standard ID | GB/T 38267-2019 (GB/T38267-2019) | | Description (Translated English) | Numerical control system of machine tool - Programming code | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J50 | | Classification of International Standard | 25.040.20 | | Word Count Estimation | 34,383 | | Date of Issue | 2019-12-10 | | Date of Implementation | 2020-07-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 38267-2019: Numerical control system of machine tool - Programming code---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(CNC system programming code)
ICS 25.040.20
J50
National Standards of People's Republic of China
Machine control system programming code
2019-12-10 release
2020-07-01 implementation
State Administration of Market Supervision
Published by the National Standardization Management Committee
Contents
Foreword III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Program format and requirements 3
4.1 Program Format 3
4.2 Program number 3
4.3 Character 3
4.4 Value 3
4.5 Variable 4
4.6 Block 5
4.7 Program Note 5
4.8 Program jump 6
4.9 Subroutine 6
4.10 Program End 7
4.11 Program Interchange 7
5 Function code 7
5.1 Overview 7
5.2 Modal and Modal Groups 8
5.3 Preparation function 8
5.4 Thread cutting function 11
5.5 Feed function 11
5.6 Accessibility 12
5.7 Spindle Functions 13
5.8 Tool functions 13
5.9 Pause Function 14
5.10 Sorting Function Codes 14
6 Interpolation Programming 14
6.1 General rules 14
6.2 Linear interpolation 14
6.3 Circular interpolation 15
6.4 Parabolic interpolation 15
6.5 Polar coordinate interpolation 15
6.6 Cylindrical interpolation 16
6.7 NURBS interpolation 16
6.8 Five-axis interpolation 17
7 Default state 18
7.1 Overview 18
7.2 Milling Machines (Machining Centers) 18
7.3 Lathes 18
Appendix A (Normative) Character Code 19
Appendix B (Informative) Procedure Exchange 22
Appendix C (informative) Canned cycle code 23
Appendix D (informative) Example of interpolation function 24
References 30
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by China Machinery Industry Federation.
This standard is under the jurisdiction of the National Machine Tool CNC System Standardization Technical Committee (SAC/TC367).
This standard was drafted. Wuhan Huazhong Numerical Control Co., Ltd., Huazhong University of Science and Technology, Guangzhou Numerical Control Equipment Co., Ltd., and Shenyang High Precision
Control Intelligent Technology Co., Ltd., Beijing University of Aeronautics and Astronautics, Zhuhai Yixin Measurement Technology Co., Ltd., Kede CNC Co., Ltd.,
Chengdu Guangtai Industrial Co., Ltd., Beijing Jingdiao Technology Group Co., Ltd., Beijing Beiyi Machine Tool Co., Ltd., Zhejiang Zhongkong Research Institute have
Co., Ltd., Shenyang Aircraft Industry (Group) Co., Ltd., Shanghai Electric Automation Group, Nanjing Ruipude CNC Equipment Co., Ltd., Ximen
NC (Nanjing) Co., Ltd.
The main drafters of this standard. Jiang Rongliang, Jin Jian, Mao Yan, Zou Jie, Zhang Yujie, Wu Wenjiang, Gao Liansheng, Shao Zhiqiang, Huang Zhiliang, Zhang Songtao,
Dong Dapeng, Deng Min, Zhu Yanju, He Jiangtao, Pan Zai, Du Baorui, Tao Yimin, Cheng Yingmin, Yao Jian.
Introduction
The formulation of this standard has improved the programming code system of machine tool numerical control systems, expanded the code content and meaning, and unified the machine tool numerical control system.
The requirements for the use of programming code can effectively improve the compatibility, interchangeability and portability of machine tool CNC system programs.
System processing efficiency and application level are of great significance.
Machine control system programming code
1 Scope
This standard specifies the programming code format and content of machine tool CNC system, including. program format and requirements, function code, interpolation programming and machine
Bed power is on by default.
This standard applies to machine tool CNC systems. For other uses of CNC system, please refer to this standard.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 8129-2015 Vocabulary for numerical control of machine tools in industrial automation systems
GB/T 13000-2010 Information Technology Universal Multi-octet Coded Character Set (UCS)
3 terms and definitions
The terms and definitions defined in GB/T 8129-2015 and the following apply to this document. For ease of use, the following is repeated
Certain terms and definitions in GB/T 8129-2015.
3.1
Program
A collection of code sequences that control a CNC machine to complete a part.
3.2
Programming code
The instructions written in the prescribed language and format are used to control the NC machine tool to execute the set trajectory and actions.
3.3
Block
A set of instruction words in a (NC) program in order to achieve an operation.
Note 1. Each block is separated by the end character of the block.
Note 2. In the positioning system, a block includes the coordinate value of the position and the auxiliary function instructions to complete the operation.
[GB/T 8129-2015, definition 3.3.2]
3.4
Character
A set of element symbols used to represent, organize, or control data.
Note. Characters can be classified according to Table 1.
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