GB/T 39953-2021 English PDF

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GB/T 39953-2021: 5-axis simultaneous machining center - Testing of the accuracy for RTCP
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39953-2021	339	Add to Cart	4 days	5-axis simultaneous machining center - Testing of the accuracy for RTCP	Valid

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Basic data

Standard ID: GB/T 39953-2021 (GB/T39953-2021)
Description (Translated English): 5-axis simultaneous machining center - Testing of the accuracy for RTCP
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J50
Word Count Estimation: 18,138
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 39953-2021: 5-axis simultaneous machining center - Testing of the accuracy for RTCP

---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.
5-axis simultaneous machining center - Testing of the accuracy for RTCP ICS 25.040.10 J50 National Standards of People's Republic of China Five-axis machining center RTCP accuracy test Released on 2021-03-09 2021-10-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 General requirements 1 4.1 Unit of measurement 1 4.2 Reference Standard 1 4.3 Inspection sequence 2 4.4 Inspection item 2 4.5 Inspection tool 2 4.6 Software compensation 2 4.7 Schematic diagram and axis naming 2 4.8 Minimum tolerance 3 5 RTCP accuracy, motion accuracy, interpolation accuracy inspection 3 5.1 RTCP accuracy test 3 5.2 Motion accuracy test 7 5.3 Interpolation accuracy check 7 Appendix A (informative appendix) Circular motion accuracy of machine tool with double pendulum head structure 8 Appendix B (informative appendix) Circular motion accuracy of double turntable structure machine tool 10 Appendix C (informative appendix) Circular motion accuracy of machine tool with compound structure of swing head and turntable 12 Appendix D (informative appendix) Circular interpolation accuracy of variable speed motion of machine tool 13 Appendix E (informative appendix) Error graphic display example 15

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Standardization Technical Committee for Metal Cutting Machine Tools (SAC/TC22). Drafting organizations of this standard. University of Electronic Science and Technology of China, National Machine Tool Quality Supervision and Inspection Center, Chinese Academy of Engineering Physics Machinery Manufacturing Process Research Institute, Chengdu Aircraft Industry (Group) Co., Ltd., Kede CNC Co., Ltd., Chengdu Price CNC Machine Tool Co., Ltd., Even Polytechnic University. The main drafters of this standard. Wang Wei, Ding Jiexiong, Zhang Wei, Huang Zuguang, Jiang Zhong, Mou Wenping, Chen Yanyan, Li Shulin, Chen Hu, Ding Qicheng, Liu Haibo, Xiao Hong and Du Li. Five-axis machining center RTCP accuracy test

1 Scope

This standard specifies the inspection requirements, inspection methods and corresponding tolerances of the RTCP accuracy of the five-axis machining center. This standard is applicable to five types of double swing head structure, double turntable structure, swing head and turntable composite structure containing three linear axes and two rotary axes. Axis linkage machining center (hereinafter referred to as machine tool). For other structures, five-axis linkage machining center, please refer to the implementation.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 17421.1-1998 General rules for inspection of machine tools Part 1.Geometric accuracy of machine tools under no load or finishing conditions ISO 10791-6.2014 Machining Center Inspection Conditions Part 6.Feed Speed and Interpolation Accuracy (Testconditionsforma- chiningcentres-Part 6.Accuracyofspeedsandinterpolations)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Tool center point follow function rotationtoolcentrepoint; RTCP In the workpiece coordinate system, it can respond to the instantaneous position change of the rotary axis and keep the tool center point coordinate unchanged. Note. The RTCP error is the error value of the tool center point coordinate during multi-axis linkage when the RTCP function is enabled. 3.2 RTCP accuracy RTCPaccuracy When the RTCP function is enabled, the proximity of the theoretical coordinate value of the tool center point to the actual coordinate value during multi-axis linkage is detected.

4 General requirements

4.1 Unit of measurement The unit of linear dimension, deviation and corresponding tolerance in this standard is millimeter (mm), the unit of angular dimension is degree (°), angular deviation and The corresponding tolerance is expressed as a ratio, but in some cases for clarity, it can be expressed in microradians (μrad) or arc seconds ("). The equivalent of the expression The relationship is as follows. 0.010/1000=10×10-6=10μrad≈2″ 4.2 Reference standards When using this standard, the installation before machine tool inspection, the heating of the spindle and other moving parts, the inspection method and the recommended accuracy of the inspection tool ......

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