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GB/T 14349-2011: Press brake -- Testing of the accuracy
Status: Valid GB/T 14349: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 14349-2011 | English | 229 |
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3 days [Need to translate]
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Press brake -- Testing of the accuracy
| Valid |
GB/T 14349-2011
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| GB/T 14349-1993 | English | 279 |
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3 days [Need to translate]
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Press brake-Testing of the accuracy
| Obsolete |
GB/T 14349-1993
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PDF similar to GB/T 14349-2011
Basic data | Standard ID | GB/T 14349-2011 (GB/T14349-2011) | | Description (Translated English) | Press brake -- Testing of the accuracy | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J62 | | Classification of International Standard | 25.120.10 | | Word Count Estimation | 10,182 | | Date of Issue | 2011-06-16 | | Date of Implementation | 2012-01-01 | | Older Standard (superseded by this standard) | GB/T 14349-1993 | | Quoted Standard | GB 10923-2009; GB/T 8170 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 9 of 2011 | | 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 plate bending machine precision test, test accuracy and test methods allowed values ??. This standard applies to general-purpose plate bending machine. | GB/T 14349-2011: Press brake -- 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.
Press brake. Testing of the accuracy
ICS 25.120.10
J62
National Standards of People's Republic of China
Replacing GB/T 14349-1993
Precision sheet metal bending machine
Issued on. 2011-06-16
2012-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Accordance with the standards GB/T 1.1-2009. Drafting Rules "Standardization Guide Part 1 standard structure and preparation of" given.
This standard replaces GB/T 14349-1993 "plate bending machine precision."
This standard compared with GB/T 14349-1993, the main changes are as follows.
--- Increasing the general requirements for accuracy test (see 3.1);
When --- modifications and additions to the work of the accuracy test specimen requirements (see 3.2);
--- Modify the preset test representation (see 3.1.1);
--- Modify and adjust the geometric accuracy (see 4.1);
--- Modify and adjust the working accuracy (see 4.2).
The standard proposed by China Machinery Industry Federation.
This standard by the National Forging Machinery Standardization Technical Committee (SAC/TC220) centralized.
This standard is drafted by. Shanghai punching machine tool factory, Tianshui Metalforming Machine Tool Co., Ltd., Anhui Sanli Machine Tool Manufacturing Co.,
Foshan City, South China Sea ACL Machine Co., Ltd., Shenyang Forging Machinery Co., Ltd. Hubei Tri-ring forging equipment.
The main drafters of this standard. Deming, Guo Wei, Cai Li Quan, Dao Bao, Yangcheng Shou, Chen Jin, Yue Chunjuan, Liu Binglian.
This standard replaces the standards previously issued as follows.
--- GB/T 14349-1993.
Precision sheet metal bending machine
1 Scope
This standard specifies the sheet metal bending machine accuracy test, test and test method precision allowable value.
This standard applies to general purpose plate bending machine.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB 10923-2009 accuracy test General Forging Machinery
GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment
3 inspection instructions
3.1 General requirements
3.1.1 Accuracy test should be adjusted before the installation of the horizontal plate bending machine, leveling machine after the longitudinal and transverse directions should not be more than 0.20 /
1000.
3.1.2 Geometric accuracy tests should be conducted under no load conditions.
3.1.3 accuracy should work full-load test after test.
3.1.4 accuracy of the inspection process, should not affect the accuracy of bodies and parts to be adjusted.
3.1.5 Accuracy Test and inspection gage amount shall comply with GB/T 10923 of.
3.1.6 When the actual measured length is less than a predetermined length tolerance, the actual measured length shall be converted, the conversion results by GB/T 8170 rounding
To m digits.
3.1.7 Specimen length, width limit deviation of ± 2mm, the specimen thickness limit deviation of ± 0.3mm.
3.2 Test conditions for precision work
3.2.1 The length of the specimen shall conform to the requirements of Table 1.
Table 1 millimeters
Table length L specimen length l
≤2000 L
> 2000 to 3200 2000
> 3200 ~ 50,003,000
> 50,004,000
3.2.2 The width of the specimen shall not be less than 100mm.
3.2.3 Specimen thickness shall comply with the requirements of Table 2.
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