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GB/T 38266-2019 English PDF

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GB/T 38266-2019: Numerical control system of machine tool - General for reliability
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Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 38266-2019	English	199	Add to Cart	3 days [Need to translate]	Numerical control system of machine tool - General for reliability	Valid	GB/T 38266-2019

PDF similar to GB/T 38266-2019

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Basic data

Standard ID	GB/T 38266-2019 (GB/T38266-2019)
Description (Translated English)	Numerical control system of machine tool - General for reliability
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J50
Classification of International Standard	25.040.20
Word Count Estimation	10,137
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 38266-2019: Numerical control system of machine tool - General for reliability

---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.
Numerical control system of machine tool--General for reliability ICS 25.040.20 J50 National Standards of People's Republic of China General rules for the reliability of machine tool CNC systems 2019-12-10 release 2020-07-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Reliability work and requirements 2 4.1 Overview 2 4.2 Work Object 2 4.3 Work content 2 4.4 Requirement 3 5 Product reliability requirements 4 5.1 General 4 5.2 Reliability index 4 5.3 Principles for determining reliability index 4 5.4 Determining factors of reliability index 5 5.5 Reliability testing and assessment 5 Reference 6

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China National 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 by. Huazhong University of Science and Technology, Wuhan Huazhong CNC Co., Ltd., Guangzhou CNC Equipment Co., Ltd., Beijing Airlines Tian University, Shenyang High Precision CNC Intelligent Technology Co., Ltd., Zhejiang Central Control Research Institute Co., Ltd., Beijing Aerospace CNC System Co., Ltd., Changchun Yuheng Optical Co., Ltd. and National Machine Tool Quality Supervision and Inspection Center. The main drafters of this standard. Jin Jian, Zhang Hangjun, Chen Jihong, Zhang Yujie, Gao Liansheng, Wu Wenjiang, Shao Zhiqiang, Pan Shenghuan, Zhang Zhiyun, Ma Chunling, Zhao Qinzhi, Xue Ruijuan.

Introduction

Reliability is one of the key attributes of the machine tool CNC system. The more users demand the function (performance) of the CNC system product and its reliability Come higher. Therefore, formulate relevant standards for the reliability of machine tool CNC systems to lead and guide relevant companies in the machine tool CNC system industry Entering the ground to carry out the reliability work, promote the improvement of the reliability level of the machine tool CNC system, and meet the continuous development of the market. General rules for the reliability of machine tool CNC systems

1 Scope

This standard specifies the object, content and requirements of the reliability work of the machine tool CNC system, and the reliability requirements of the machine tool CNC system product. This standard applies to machine tool CNC systems (hereinafter referred to as "CNC systems or products").

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 the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 2900.13-2008 credibility of electrician terminology and service quality GB/T 7826-2012 system reliability analysis technology failure mode and impact analysis (FMFA) program GB/T 7829 fault tree analysis program GB/T 26220 General technical requirements for industrial automation system and integrated machine tool numerical control numerical control system GB/T 32245 machine tool CNC system reliability test and evaluation

3 Terms and definitions

The terms and definitions defined in GB/T 2900.13-2008 and the following apply to this document. 3.1 Reliability The ability of the CNC system to complete the specified functions under the specified conditions and within the specified time interval. Note 1. It is generally believed that the numerical control system is in a state where it can complete the required function at the beginning of the time interval. Although the magnitude of reliability exists objectively , But in fact usually use limited sample observation data, and get its estimate value through statistical calculation. The magnitude of reliability is also called reliability. Note 2. Rewrite the definition 3.1 of GB/T 29545-2013. 3.2 Inherent reliability Reliability given to products through design and manufacturing, and under ideal use and guarantee conditions. 3.3 Reliability parameter Characteristic quantity describing the reliability level of CNC system products. 3.4 Reliability index The magnitude of the reliability level of the CNC system. Note. Reliability indicators usually include qualitative reliability indicators and quantitative reliability indicators. 3.5 Mission reliability The ability of the CNC system to complete the specified functions in the specified mission profile. Note. The sample of statistics when determining the reliability of a task is the fault that affects the completion of the task during the task.

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