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5-axis simultaneous machining center - Testing of the accuracy for RTCP
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GB/T 39953-2021
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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 | 18,164 | | 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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GB/T 39953-2021: 5-axis simultaneous machining center - Testing of the accuracy for RTCP
Status: Valid
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