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JJF 1123-2004 English PDF

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JJF 1123-2004: Calibration Specification for Base circle pitch comparator
Status: Valid
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JJF 1123-2004English339 Add to Cart 3 days [Need to translate] Calibration Specification for Base circle pitch comparator Valid JJF 1123-2004

PDF similar to JJF 1123-2004


Standard similar to JJF 1123-2004

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Basic data

Standard ID JJF 1123-2004 (JJF1123-2004)
Description (Translated English) Calibration Specification for Base circle pitch comparator
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A52
Classification of International Standard 17.040
Word Count Estimation 13,150
Date of Issue 2004-06-04
Date of Implementation 2004-12-01
Older Standard (superseded by this standard) JJG 78-1982
Quoted Standard JJG 1001-1998; JJG 1059-1999; GB/Z 18620.1-2002
Issuing agency(ies) State Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to indexing is 1��m, modulus of 2mm ~ 20mm of base pitch comparator calibration.

JJF 1123-2004: Calibration Specification for Base circle pitch comparator

---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.
Calibration Specification for Base circle pitch comparator National Metrology Technical Specification of the People's Republic Base circular pitch comparator calibration specification Released on June.2004 Implementation of.2004-12-01 The General Administration of Quality Supervision, Inspection and Quarantine issued Base circular pitch comparator calibration specification Arator Replace JJG78-1982 This specification was approved by the General Administration of Quality Supervision, Inspection and Quarantine on June 4,.2004, and Implemented on December 1,.2004. Focal Point. National Geometric Length Measurement Technical Committee Drafting unit. Dongfeng Motor Corporation Metrology Institute This specification is interpreted by the focal point Drafters of this specification. Zheng Xu (Dongfeng Motor Corporation Metrology Institute)

table of Contents

1 Scope (1) 2 Citations (1) 3 Overview (1) 4 Measurement characteristics (2) 4.1 Front and rear proofing plane flatness (2) 4.2 Parallelism of front and rear proofing block working faces (2) 4.3 Research on the front and back proofing block working faces (2) 4.4 Coincidence of front and back proofing block working faces (2) 4.5 indicator table (2) 4.6 Repeatability (2) 4.7 indication error (2) 5 Calibration conditions (2) 5.1 Environmental conditions (2) 5.2 Calibration items and standards (2) 6 Calibration items and calibration methods (2) 6.1 Front and rear proofing plane flatness (3) 6.2 Parallelism of front and rear proofing block working faces (3) 6.3 Research on the front and back proofing block working faces (3) 6.4 Coincidence of front and back proofing block working faces (4) 6.5 indicator table (4) 6.6 Repeatability (4) 6.7 indication error (4) 7 Expression of calibration results (4) 8 re-study interval (4) Appendix A Contents of the Calibration Certificate (5) Appendix B Evaluation of Uncertainty in Measurement Error of Base Tooth Pitch Comparator (6) Base circular pitch comparator calibration specification

1 Scope

This specification is applicable to the calibration of a base pitch pitch comparator with a divisional value of 1 μm and a modulus of 2 mm to 20 mm.

2 Citations

The provisions contained in the following documents constitute provisions of this specification by reference in this specification. Publication of this specification The version shown is valid. All standards, specifications or procedures will be revised and all parties using this specification should Use the possibility of the latest version of the following literature. JJG1001-1998 General Measurement Terms and Definitions JJG1059-1999 Measurement uncertainty evaluation and representation GB/Z 18620.1-2002 Specification for the inspection of cylindrical gears - Part 1

3 Overview

The base circular pitch comparator is divided into two types, a touch blade type and a tangential type, according to the contact form of the contact claw and the tooth surface contact. For measuring the deviation of the base circle pitch of the external meshing spur gear and helical gear. When measuring the pitch of the base, the pitch of the base is determined by the basis of the gauge block and the proofing fixture. The comparator measures the claws to adjust so that the indicator is zero; then the positioning claws and the fixed claws of the base pitch controller Cross-pressure on the tooth surface to be measured, the movable claw is in contact with the other tooth surface, and the slightly oscillating base circular pitch comparator, on the indicator sheet The indication value of the turning point is the deviation of the pitch of the measured gear base. The shape of a typical base-tooth pitch comparator is shown in Figure 1 and Figure 2. Figure 1 touch blade type Figure 2 Tangential

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