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GB/T 21681-2008: Analog load testing system for CNC presses and hydraulic presses
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21681-2008 | English | 209 |
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Analog load testing system for CNC presses and hydraulic presses
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GB/T 21681-2008
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Basic data | Standard ID | GB/T 21681-2008 (GB/T21681-2008) | | Description (Translated English) | Analog load testing system for CNC presses and hydraulic presses | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J62 | | Classification of International Standard | 25.120.10 | | Word Count Estimation | 9,954 | | Date of Issue | 2008-04-22 | | Date of Implementation | 2008-10-01 | | Quoted Standard | GB/T 191; GB/T 3369 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.6 (Total No.119) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the CNC press, technical requirements for hydraulic load test simulation systems, test methods, inspection rules, signs, packaging, storage and transportation. This standard applies to CNC presses, hydraulic machine with a simulated load test system is also applicable to mechanical presses, Friction press with simulated load test system. | GB/T 21681-2008: Analog load testing system for CNC presses and hydraulic presses---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.
Analog load testing system for CNC presses and hydraulic presses
ICS 25.120.10
J62
National Standards of People's Republic of China
CNC presses, hydraulic machine load simulation test system
Posted 2008-04-22
2008-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard proposed by China Machinery Industry Federation.
This standard by the National Forging Machinery Standardization Technical Committee (SAC/TC220) centralized.
This standard is mainly drafted by. Jinan Foundry and Metalforming Machinery Research Institute, Jinan Forging Machinery Co., Ltd. by Zimmer.
The main drafters of this standard. Ma Liqiang, Chen Hong.
CNC presses, hydraulic machine load simulation test system
1 Scope
This standard specifies the NC press, the technical requirements of hydraulic simulation load test systems, test methods, inspection rules, marking, packaging,
Storage and transportation.
This standard applies to CNC presses, hydraulic machine simulated load test system, but also for mechanical presses, friction presses analog
Load test system (hereinafter referred to as the test system).
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 191 Packaging - Pictorial signs (GB/T 191-2000, eqv ISO 780.1997)
GB/T 3369 Industrial Automation Instrumentation Analogue direct current signals
GB/T 3370 Industrial Automation Instrumentation analog DC voltage signal
GB/T 7551-1997 weighing sensor
GB 9969.1 Instructions Industrial Products
GB/T 13639-1992 industrial process measurement and control systems analog digital indicator
GB/T 15464 instrumentation packaging technology
JB/T 1399 industrial automation, instrumentation and arrangement of terminals logo
3 Terms and Definitions
GB/T 7551 and GB/T 13639 and established the following terms and definitions apply to this standard.
3.1
By adjusting the height of the strike closed NC press load sensor leaving NC striking force generated by the press, or by adjusting the hydraulic pressure
Machine height closed hydraulic system pressure and the striking force against leaving the hydraulic load cell generated.
3.2
For measuring the impact force load cell.
3.3
It can be applied to the load cell without exceeding the maximum permissible error of the maximum force.
4. Technical Requirements
4.1 Requirements
Working conditions 4.1.1 Reference test system, normal working conditions and transport conditions should be consistent with GB/T 13639-1992 specified in 4.3
A group instrument requirements.
4.1.2 Minimum warm-up time test system for 15min.
4.1.3 influence quantity testing system includes a main power supply variations, common mode interference, series mode interference, grounding, external magnetic field, temperature, humidity, installation
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