JJG 39-2004 English PDF

US$469.00 · In stock
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JJG 39-2004: Verification Regulation of Comparators of Machine Type
Status: Valid

JJG 39: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 39-2004	469	Add to Cart	3 days	Verification Regulation of Comparators of Machine Type	Valid
JJG 39-1990	319	Add to Cart	3 days	Verification Regulation of Comparator of Machinery Type	Obsolete
JJG 39-1980	RFQ	ASK	3 days	(Chinese Industry Standard)	Obsolete

Similar standards

JJG 517   JJG 5   JJG 0061   JJG 34   JJG 30   JJF 039   

Basic data

Standard ID: JJG 39-2004 (JJG39-2004)
Description (Translated English): Verification Regulation of Comparators of Machine Type
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Classification of International Standard: 17.040
Word Count Estimation: 18,188
Date of Issue: 2004-09-21
Date of Implementation: 2005-03-21
Older Standard (superseded by this standard): JJG 39-1990
Quoted Standard: 2004 technical regulations issued by national metrology (industrial measurement 2005 Volume 15, Issue 1)
Regulation (derived from): 2004 technical regulations issued by national metrology (industrial measurement 2005 Volume 15, Issue 1)
Issuing agency(ies): State Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to indexing is 0. 5��m, 1��m, 2��m, 5��m, 10��m mechanical comparator (hereinafter referred to as comparator) of the initial verification, testing and use of follow-up inspection.

JJG 39-2004: Verification Regulation of Comparators of Machine Type

---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 Comparators of Machine Type National Metrology Verification Regulations of the People's Republic Mechanical comparator Released on.2004-09-21 2005-03-21 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Mechanical comparator calibration procedure Replace JJG 39-1990 This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 21,.2004, and It will take effect on March 21,.2005. Focal Point. National Geometric Quantity Engineering Measurement Technology Committee Drafted by. China Testing Technology Research Institute This regulation entrusts the National Geometric Quantity Engineering Parametric Measurement Technical Committee to explain Drafters of this procedure. Chen Yongkang (China Testing Technology Research Institute) Cao Jian (China Testing Technology Research Institute) Zhaoqing (China Testing Technology Research Institute)

table of Contents

1 Scope (1) 2 Citations (1) 3 Overview (1) 4 Metrology performance requirements (1) 4.1 Diameter of the clamping sleeve (1) 4.2 The relative position of the pointer and the indexing plate (2) 4.3 Pointer end and indexing line width (2) 4.4 Surface roughness of the working surface of the table and the measuring surface of the cap (2) 4.5 Flatness of work surface (3) 4.6 Adjustable Worktable Adjustability (3) 4.7 The perpendicularity of the fixed work surface to the measuring axis (3) 4.8 Force measurement (3) 4.9 The influence of the radial force on the indication value of the rod (3) 4.10 Repeatability (3) 4.11 indication error (4) 4.12 Return error (4) 5 General technical requirements (4) 5.1 Appearance (4) 5.2 Interaction of various parts (5) 6 measuring instrument control (5) 6.1 Verification conditions (5) 6.2 Verification project (5) 6.3 Verification method (6) 6.4 Processing of verification results (9) 6.5 verification period (9) Appendix A Analysis of Uncertainty of Measurement Errors of Mechanical Comparators (10) Appendix B Format of verification certificate and verification result page (13) Mechanical comparator calibration procedure

1 Scope

This procedure applies to mechanical comparators with indexing values of 0.5μm, 1μm, 2μm, 5μm, 10μm (see below) The first test, the subsequent test and the in-use test of the comparator.

2 Citations

JJF1001-1998 General measurement terms and definitions JJF1059-1999 Measurement Uncertainty Evaluation and Representation JJF1094-2002 Measuring instrument characteristic evaluation GB/T 6320-1997 lever gear comparator When using this procedure, care should be taken to use the current valid version of the above cited documents.

3 Overview

The comparator uses a lever and gear drive, a simple lever drive and a rack and pinion drive to position the rod in a straight line. A measuring instrument that shifts to a pointer angular displacement. Mainly used to measure the shape and position error of the part, and use the comparison method Measure the dimensions of the part. Its appearance is shown in Figures 1 and 2. Figure 1 lever gear type 1-pointer; 2-indexing disk; 3-zeroing device; 4-clamping sleeve; 5-stroke; 6-cap Figure 2 Lever or lever gear 1-division disk; 2-pointer; 3-case; 4-clamping sleeve; 5-stroke; 6-cap The comparator's workbench is divided into fixed and adjustable. The shape of the adjustable workpiece table is shown in Figure 3.

4 Metrological performance requirements

4.1 diameter of the clamping sleeve ......

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