JJG 70-2004 English PDF

US$469.00 · In stock
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JJG 70-2004: Verification Regulation of Angle Gauge Blocks
Status: Valid

JJG 70: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 70-2004	469	Add to Cart	3 days	Verification Regulation of Angle Gauge Blocks	Valid
JJG 70-1993	279	Add to Cart	3 days	Verification Regulation of Angle Gauge	Obsolete
JJG 70-1980	RFQ	ASK	3 days	(Chinese Industry Standard)	Obsolete

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JJG 517   JJG 5   JJG 0061   JJG 62   JJG 60   JJF 070   

Basic data

Standard ID: JJG 70-2004 (JJG70-2004)
Description (Translated English): Verification Regulation of Angle Gauge Blocks
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Classification of International Standard: 17.040
Word Count Estimation: 18,187
Date of Issue: 2004-03-02
Date of Implementation: 2004-09-02
Older Standard (superseded by this standard): JJG 70-1993
Quoted Standard: JJF 1094-2002; JJF 1001-1998; JJF 1059-1999; JB/T 3325-1999
Regulation (derived from): Administration of Quality Supervision, Inspection and Quarantine of 2004 No. 24
Issuing agency(ies): State Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to angle block initial verification, testing and use of follow-up inspection.

JJG 70-2004: Verification Regulation of Angle Gauge Blocks

---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.
Verification Regulation of Angle Gauge Blocks National Metrology Verification Regulations of the People's Republic Angle block Released on.2004-03-02 2004-09-02 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Angle block verification procedure AngleGaug eBlocks Replace JJG 70-1993 This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on March 02,.2004, and Implemented on September 2,.2004. Focal Point. National Geometric Angle Measurement Technical Committee Drafting unit. Shanghai Institute of Metrology and Testing Technology This regulation entrusts the National Geometrical Angle Measurement Technical Committee to explain Drafters of this procedure. Wang Jian (Shanghai Institute of Metrology and Testing Technology) Gu Yaozong (Shanghai Institute of Metrology and Testing Technology) Xue Runqiu (Shanghai Institute of Metrology and Testing Technology)

table of Contents

1 Scope (1) 2 Citations (1) 3 Overview (1) 4 Metrological performance requirements (2) 5 General technical requirements (2) 6 measuring instrument control (2) 6.1 Verification conditions (2) 6.2 Verification project (3) 6.3 Verification method (3) 6.4 Verification result processing (7) 6.5 verification period (7) Appendix A Wide working face angle block (8) Appendix B Comparison method verifies the verticality of the angle block working face and the lower non-working face (9) Appendix C The method of numerically dividing the head to determine the deviation of the working angle value (10) Appendix D Example of Calculation of Operating Angle Angle Deviation of Digital Indexing Head Verification (11) Appendix E Certification Certificate Page Format (12) Appendix F Format of the verification result page (13) Angle block verification procedure

1 Scope

This procedure applies to the first verification, subsequent verification and in-use inspection of angle blocks.

2 Citations

This procedure refers to the following documents JJF1094-2002 measuring instrument characteristics evaluation JJF1001-1998 general measurement terms and definitions JJF1059-1999 Measurement Uncertainty Evaluation and Representation JB/T 3325-1999 angle gauge block and its accessories Use of this specification should be done with the current valid version of the above cited documents.

3 Overview

An angle block is a high-precision gauge that determines the angle value from the angle between two adjacent work planes. It can be used to check the angle. The indication error of the gage, the angle of the angle model and the part, and the angle of the precision machine tool during the machining process Line adjustment. Commonly used angle block types are type I and type II (as shown in Figure 1). Type I angle block has only one job Angle, both working faces are 70mm long and 5mm thick; Type II angle blocks have four working angles, and the long side of the working face is 70mm, short side is 50mm, thickness is 5mm. Such angle blocks typically have 94 blocks, 36 block groups, and 7 block groups. There is also a special angle block for wide working faces (see Appendix A). The angle block can be used alone or by means of a clamp, which can be used after combining two or more pieces into a desired angle. Type I 1-left working face; 2-right working face; 3-upper working face (with trademark, degree marking surface); 4-low non-working surface; 5-side (refer to the triangle angle block) Type II 1,2,3,4-working surface; 5-on non-working surface (with trademark, degree marking surface); 6-low non-working surface figure 1 ......

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