GB/T 37903-2019Reliability assessment method of NC mechanical presses (English PDF)
数控压力机可靠性评定方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
August 30, 2019
Implementation date
March 1, 2020
Scope
GB/T 37903-2019 is the English-translated version of 数控压力机可靠性评定方法.
GB/T 37903-2019 is the Chinese standard "Reliability assessment method of NC mechanical presses". Its scope clause reads: This standard specifies the fault classification and determination principle, sampling, test plan and test for the reliability verification, measurement and evaluation of CNC presses.
Methods, fault monitoring, data acquisition, reliability assessment indicators, test results determination, etc. This standard applies to the reliability assessment of CNC presses. Its clauses include terms and definitions.
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Document preview — GB/T 37903-2019
National Standard of the People's Republic of China
- ICS
- 25.120.10
- Classification
- J 62
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 CNC Press NCmechanicalpresses
- 3.2 Fault
- 3.3 Associated fault relevantfault
- 3.4 Non-relevant fault
- 3.5 Essential fault intrinsicmalfunction
- 3.6 Misuse of fault misusefault
1 Scope
This standard specifies the fault classification and determination principle, sampling, test plan and test for the reliability verification, measurement and evaluation of CNC presses.
Methods, fault monitoring, data acquisition, reliability assessment indicators, test results determination, etc.
This standard applies to the reliability assessment of CNC presses.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB 17120 Forging machinery safety technical conditions
GB/T 26483 mechanical press noise limit
GB 27607 mechanical press safety technical requirements
GB/T 36484 Forging machinery terminology
3 Terms and definitions
The following terms and definitions as defined in GB/T 36484 apply to this document.
3.1 CNC Press NCmechanicalpresses
A mechanical press that controls and displays at least the speed and position of the slider and monitors the working force of the press using numerical control system control.
3.2 Fault
CNC presses cannot perform states and events where specified functions or performance specifications exceed specified limits. Preventive maintenance or other planning
Except in the case of activities or lack of external resources.
3.3 Associated fault relevantfault
A fault that is factored in when interpreting a test or work result or calculating a reliability feature value.
3.4 Non-relevant fault
A fault that is not counted when interpreting the test or work results or calculating the value of the reliability feature value.
3.5 Essential fault intrinsicmalfunction
When the CNC press is used under specified conditions, it is a malfunction caused by defects inherent in its components or components.
3.6 Misuse of fault misusefault
Failure to use the CNC press without the specified conditions or beyond the allowable range of the product.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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