JJG 472-2007 English PDF

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JJG 472-2007: Verification Regulation of Precise Angle Dividing Table
Status: Valid

JJG 472: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 472-2007	469	Add to Cart	3 days	Verification Regulation of Precise Angle Dividing Table	Valid
JJG 472-1997	559	Add to Cart	4 days	Verification Regulation of Precise Angle Dividing Table	Obsolete
JJG 472-1986	RFQ	ASK	3 days	Precise Angle Dividing Table	Obsolete

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JJG 818   JJG 517   JJG 0061   JJG 658   JJG 601   JJG 473   

Basic data

Standard ID: JJG 472-2007 (JJG472-2007)
Description (Translated English): Verification Regulation of Precise Angle Dividing Table
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Classification of International Standard: 17.040.01
Word Count Estimation: 18,125
Date of Issue: 2007-06-14
Date of Implementation: 2007-12-14
Older Standard (superseded by this standard): JJG 472-1997
Quoted Standard: AQSIQ Announcement No. 95 of 2007
Regulation (derived from): AQSIQ Announcement No. 95 of 2007
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to multi-tooth indexing table of initial verification, testing and use of follow-up inspection.

JJG 472-2007: Verification Regulation of Precise Angle Dividing Table

---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 Precise Angle Dividing Table State verification procedures People's Republic of China Multi-tooth indexing table Posted 2007-06-14 2007-12-14 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Multi-tooth indexing table test procedures Table Replacing JJG 472-1997 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine, 2007 June 14 ratification and From December 14, 2007 into effect. Focal point. the National Technical Committee geometric angle measurement Main drafting unit. Shanghai Institute of Measurement and Testing China State Shipbuilding Corporation sixth three hundred fifty-four Institute Participated in the drafting unit. China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology graduate School This procedure entrust the country to measure angles geometric measurement technology committee responsible for the interpretation The main drafters of this procedure. Pansy Ho (Shanghai Institute of Measurement and Testing) Guyao Zong (Shanghai Institute of Measurement and Testing) Zoujiu Gui (China State Shipbuilding Corporation sixth three hundred fifty-four Institute) Drafters participate. Xuerun Qiu (Shanghai Institute of Measurement and Testing) Nine Sun (China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Institute of Technology) Wu Gang (China State Shipbuilding Corporation sixth three hundred fifty-four Institute)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 metering performance requirements (3) Countertop surface roughness of 4.1 (3) 4.2 work surface flatness (3) Workbench 4.3 Parallelism of the bottom plane (3) 4.4 Maximum indexing interval error (3) 4.5 angle measurement repeatability (3) 4.6 Maximum indexing multi-tooth indexing table with a breakdown of the device interval error (4) 5 General technical requirements (4) 5.1 Appearance (4) 5.2 Interaction of each part (4) 6 Control of measuring instruments (4) 6.1 Verification condition (4) 6.2 Verification Project (4) 6.3 Verification Methods (5) 6.4 Verification Results Processing (9) 6.5 test cycle (9) Calculation Example (10) Appendix A maximum indexing table indexing polydentate test interval error Δ Appendix B multi-tooth indexing table angle measurement repeatability test sample calculation (12) Appendix C calibration certificate and test results notice (within the page) format (13) Multi-tooth indexing table test procedures

1 Scope

The order applies to more tooth dividing table of initial verification, subsequent verification and in-service inspection.

2 Citations

The regulations cited in the following documents. Q/JCJ005-2000 multi-tooth indexing table technical conditions JB/T 4316.1 ~ 4316.2-1999 straight-tooth chainring end JJF1001-1998 common measurement terms and definitions JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement JJF1094-2002 measuring instrument characteristics assessed technical specifications JJG 2057-2006 plane angle measuring instruments Verification System When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 Overview

Multi-tooth indexing table (hereinafter referred to as indexing tables) is formed by a diameter, number of teeth, tooth and other parameters identical to the plane Heart end composition and lifting gear plate locking mechanism. After two mutually engaging tooth plate, since the multi-tooth engagement of the average effect can be Dividing the value obtained high accuracy. Indexing tables can be used as an angle measurement apparatus, but also as a finishing round Indexing means. According indexing rotary axis operation, it is divided into vertical multi-tooth indexing table (work surface level) and horizontal rotary multi-tooth Indexing table (work surface vertical). Horizontal rotary multi-tooth indexing table is usually set up horizontal dual-use design, also tilted the axis of rotation When in use. Its shape is a schematic view of Figure 1 and Figure 2 respectively. In addition, there are multi-tooth indexing table with a breakdown of the device, the outer Shape is shown in Figure 3. 1 vertical multi-tooth indexing table schematic outline 1- lifter knob; 2- dial ring; 3- tooth plate; 5- fixed index line;; 4- countertops 6- under chainring ......

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