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GB/T 4681-2007 English PDF

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Q: Should I purchase the latest version GB/T 4681-2007?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4681-2007 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$469.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 4681-2007: External cylindrical centerless grinding machines -- Testing of the accuracy
Status: Valid

GB/T 4681: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4681-2007	469	Add to Cart	3 days	External cylindrical centerless grinding machines -- Testing of the accuracy	Valid
GB/T 4681-1984	439	Add to Cart	4 days	External cylindrical centerless grinding machines--Testing of the accuracy	Obsolete

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Basic data

Standard ID: GB/T 4681-2007 (GB/T4681-2007)
Description (Translated English): External cylindrical centerless grinding machines -- Testing of the accuracy
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J55
Classification of International Standard: 25.080.50
Word Count Estimation: 18,197
Date of Issue: 2007-07-17
Date of Implementation: 2007-12-01
Older Standard (superseded by this standard): GB/T 4681-1984
Adopted Standard: ISO 3875-2004, MOD
Regulation (derived from): China National Standard Announcement 2007 No.7 (Total No.107) - National-Standard-Commission
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 geometrical precision centerless cylindrical grinding machine, work axis positioning accuracy and precision, Repeat positioning accuracy of test methods and corresponding tolerances. This standard applies to general purpose, ordinary precision centerless cylindrical grinding machine.

GB/T 4681-2007: External cylindrical centerless grinding machines -- 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.
External cylindrical centerless grinding machines. Testing of the accuracy ICS 25.080.50 J55 National Standards of People's Republic of China Replacing GB/T 4681-1984 Centerless cylindrical grinding machine accuracy test (ISO 3875.2004, Machinetools-Testconditionsforexternalcylindrical centrelessgrindingmachines-Testingoftheaccuracy, MOD) Posted 2007-07-17 2007-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 1 Machine Tool 3.1 Description 1 3.2 Terminology and naming axis 1 4 2 General requirements 4.1 Unit 2 4.2 Referring to GB/T 17421.1 and GB/T 17421.2 2 4.3 Test sequence 2 4.4 Test Item 2 4.5 Test Tool 2 4.6 Working accuracy test 2 4.7 Minimum tolerance 2 Geometric tests 3 5 5.1 Dresser 3 5.2 guide wheel dresser 4 5.3 carriage 5 5.4 wheel spindle 6 5.5 guide wheel spindle 7 8 6 Operating accuracy test 7 positioning accuracy and repeatability 10 7.1 Manual or automatic linear axis (non-NC axis) positioning accuracy of 10 NC linear axis positioning accuracy of 7.2 11 List 142,004 technical differences and their causes. Appendix A (informative) This standard and ISO 3875

Foreword

This revised standard adopts ISO 3875.2004 "centerless cylindrical grinding machine tools Test conditions for precision testing" (in English). This standard is based on ISO 3875.2004 re-drafted. This standard and ISO 3875.2004 as compared to the technical content amended as follows. --- About the technical differences between the provisions relating to the margin of a single vertical line identification; --- Gives a list of those technical differences and their causes in Appendix A for reference. For ease of use, this standard also made the following editorial changes. --- In order to be consistent with other standards, the standard name will be changed to "centerless cylindrical grinding machine accuracy test"; --- "This International Standard" be replaced by "this standard"; "." --- With a decimal point instead of a comma as the decimal point, ""; --- To ISO 3875.2004 and other international standards referenced with have been adopted in place of the corresponding international standard for our country standard; --- Increasing the reference standard GB/T 19660-2005; --- Increase in Appendix A (informative); --- Remove the ISO 3875.2004 Foreword and Introduction; --- Remove the "Found bias" Tolerance a bar. This standard replaces GB/T 4681-1984 "precision centerless grinding machine." Compared with GB/T 4681-1984, the main changes are as follows. --- Increased Chapter 2, "Normative references"; --- Increased Chapter 3, "the machine structure." And supporting this standard criteria used are. --- JB/T 9905.1-1999 "centerless cylindrical grinding machine series model"; --- JB/T 9905.2-1999 "centerless cylindrical grinding machine technical conditions." Appendix A of this standard is an informative annex. The standard proposed by China Machinery Industry Federation. The standard metal cutting machine tools by the National Standardization Technical Committee (SAC/TC22) centralized. This standard was drafted. Wuxi internal grinder Institute. The main drafters of this standard. summer red, Huang Guoqing. This standard replaces the standards previously issued as follows. --- JB/T 1466-1974; --- GB/T 4681-1984. Centerless cylindrical grinding machine accuracy test

1 Scope

The standard reference GB/T 17421.1 and GB/T 17421.2 provides centerless cylindrical grinding machine geometric accuracy, precision and axis Positioning accuracy, repeatability of the test methods and corresponding tolerance. This standard applies to general purpose, general precision centerless cylindrical grinding machine.

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 17421.1-1998 Test code for machine tools - Part 1. under no-load or finishing conditions Geometric accuracy of machines (Eqv ISO 230-1.1996) GB/T 17421.2-2000 Test code for machine tools - Part 2. CNC axis positioning accuracy and repeatability of determination (Eqv ISO 230-2.1997) GB/T 19660-2005 Industrial automation systems and integration - Numerical control of machines and motion coordinate system named (ISO 841. 2001, IDT)

3 machine structure

3.1 Description Sub-machine overhang and Double-bearing. Type Ⅰ machine means supporting the wheel spindle in the wheel side (overhang formula). Machine type Ⅱ refers wheel spindle bearing wheel on both sides (double-bearing). 3.2 Terminology and naming axis This standard gives the terminology of the main components of the machine, according to GB/T 19660-2005 named axis. Terminology and naming axis in Figure 1 And Table 1. Example 1 centerless cylindrical grinding machine ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 4681-2007_English be delivered?

Answer: Upon your order, we will start to translate GB/T 4681-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 4681-2007_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 4681-2007_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 4681-2007?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4681-2007 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.