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GB/T 23480-2025: Small hole drilling electrical discharge machines - Testing of the accuracy
Status: Valid GB/T 23480: Evolution and historical versions
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| GB/T 23480-2025 | English | 599 |
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Small hole drilling electrical discharge machines - Testing of the accuracy
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GB/T 23480-2025
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| GB/T 23480.1-2009 | English | 459 |
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Small hole high speed drilling electro-discharge machines -- Part 1: Terminology and testing of accuracy
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GB/T 23480.1-2009
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PDF similar to GB/T 23480-2025
Basic data | Standard ID | GB/T 23480-2025 (GB/T23480-2025) | | Description (Translated English) | Small hole drilling electrical discharge machines - Testing of the accuracy | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J59 | | Classification of International Standard | 25.080.99 | | Word Count Estimation | 30,372 | | Date of Issue | 2025-03-28 | | Date of Implementation | 10/1/2025 | | Older Standard (superseded by this standard) | GB/T 23480.1-2009,GB/T 23480.2-2009 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 23480-2025: Small hole drilling electrical discharge machines - Testing of the accuracy---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.
ICS 25.080.99
CCSJ59
National Standard of the People's Republic of China
Replaces GB/T 23480.1-2009, GB/T 23480.2-2009
Accuracy inspection of EDM small hole machining machine tools
Released on 2025-03-28
2025-10-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Type and parameters 1
5 General 3
5.1 Units of measurement 3
5.2 Reference standards 3
5.3 Machine Leveling 3
5.4 Test sequence 3
5.5 Measuring instruments 3
5.6 Diagram 3
5.7 Software Compensation 3
5.8 Minimum tolerance 3
5.9 Positioning Accuracy 3
5.10 Working accuracy 3
6 Geometric accuracy 4
7 Positioning accuracy 17
8 Working accuracy 21
Appendix A (Normative) Special inspection tools and inspection rods 23
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 23480.1-2009 "Electro-spark small hole high-speed machining machine tools Part 1.Terminology and accuracy inspection" and
GB/T 23480.2-2009 "Electro-spark small hole high-speed machining machine tools Part 2.Parameters", GB/T 23480.1-2009,
Compared with GB/T 23480.2-2009, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) The machine tool type has been modified (see 4.1 and Figure 1, Chapter 3 of GB/T 23480.1-2009);
b) Added standard instructions for machine tool leveling, diagrams, and software compensation (see 5.3, 5.6, and 5.7);
c) The tolerance values corresponding to the accuracy test items have been changed (see Chapter 6 to Chapter 8, Chapter 5 to Chapter 7 of GB/T 23480.1-2009).
chapter);
d) Added the inspection of the spindle (Z axis) motion straightness, the spindle head (W axis) motion straightness, and the guide installation hole axis.
Geometric accuracy test items such as coaxiality inspection with the electrode rotating axis (see Chapter 6);
e) Added positioning accuracy inspection functions such as positioning accuracy, repeated positioning accuracy and positioning reverse difference inspection for CNC W-axis and Z-axis motion.
Test items (see Chapter 7);
f) Added the normative appendix "Special inspection tools and inspection rods" (see Appendix A);
g) The machine tool parameter table (see Chapter 4 of GB/T 23480.2-2009) has been deleted.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Special Processing Machine Tools (SAC/TC161).
This document was drafted by. Suzhou Electric Machine Tool Research Institute Co., Ltd., Suzhou Amazon Machine Tool Co., Ltd., Taizhou Jiangzhou CNC Machine
Bed Manufacturing Co., Ltd., Zhejiang Aigson Intelligent Manufacturing Co., Ltd., Xiamen Standardization and Quality Brand Association, Suzhou Baoma CNC Equipment
Co., Ltd., Beijing Electro-Processing Research Institute Co., Ltd., Suzhou Sanguang Technology Co., Ltd., Dongguan Taiyi Yingtuo Technology Co., Ltd.
Co., Ltd., Suzhou Zhonggu Industrial Co., Ltd., China University of Petroleum (East China), Harbin Institute of Technology, Jiangsu Dongqing CNC Machine Tool Co., Ltd., Beijing
Machine Tool Institute Precision Electromechanical Co., Ltd. and Gu'an Aerospace Xingbang Machinery Manufacturing Co., Ltd.
The main drafters of this document are. Wang Ying, Weng Hongmei, Ding Chengcai, Zhang Bo, Yu Yongwei, Wang Shaowu, Mei Jianen, Jia Yunhai, Zhou Zhikai, Kuang Jinxiang,
Yan Wei, Ji Renjie, Yang Xiaodong, Li Haozhou, Wang Peide, Wang Guiliang, Zhang Baosong, and Hong Lijun.
The previous versions of this document and the documents it replaces are as follows.
---Published in.2009 as GB/T 23480.1-2009 and GB/T 23480.2-2009;
--- This is the first revision, and GB/T 23480.1-2009 and GB/T 23480.2-2009 are merged.
Accuracy inspection of EDM small hole machining machine tools
1 Scope
This document specifies the type and parameters, geometric accuracy, positioning accuracy and working accuracy of EDM small hole machining machines, as well as the requirements related to the above-mentioned accuracy.
The tolerance value corresponding to the degree detection.
This document is applicable to the detection of the accuracy of EDM small hole machining machines.
This document only covers the detection of machine tool accuracy and is not applicable to machine tool operation tests (vibration, abnormal noise, creeping of parts, etc.) and other
Checks on parameters (such as speed, feed rate, etc.) are usually performed before precision testing.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 14896.1 Terminology of special processing machine tools Part 1.Basic terms
GB/T 14896.2 Terminology of special processing machine tools Part 2.Electrical discharge machining machine tools
GB/T 17421.1-2023 General rules for machine tool inspection Part 1.Geometric accuracy of machine tools under no-load or quasi-static conditions
GB/T 17421.2-2023 General rules for machine tool inspection Part 2.Determination of positioning accuracy and repeatability of CNC axes
GB/T 19660 Industrial automation systems and integrated machine tool numerical control coordinate systems and motion nomenclature
GB/T 19764 Guide for the selection of priority numbers and priority number integer series
3 Terms and definitions
The terms and definitions defined in GB/T 14896.1 and GB/T 14896.2 apply to this document.
4 Types and parameters
4.1 The structure of the EDM small hole machining machine (hereinafter referred to as the "machine tool") is shown in Figure 1.The coordinate system and main motion axes of the machine tool are named according to
The provisions of GB/T 19660.
4.2 The main parameters of the machine tool should include.
---Work surface width,
---Working table length,
---Distance from guide to work surface,
---X axis travel,
---Y axis travel,
---Z axis travel,
---W axis travel.
4.3 When designing machine tools, the priority number system should be used for the main parameters listed in 4.2 according to the provisions of GB/T 19764, and the common ratio should be selected according to 1.25.
Rounded value.
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