JJF 1124-2004 English PDF

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JJF 1124-2004: Calibration specification for Gear involute Measuring instruments
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1124-2004	319	Add to Cart	3 days	Calibration specification for Gear involute Measuring instruments	Valid

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Basic data

Standard ID: JJF 1124-2004 (JJF1124-2004)
Description (Translated English): Calibration specification for Gear involute Measuring instruments
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Classification of International Standard: 17.040
Word Count Estimation: 12,127
Date of Issue: 2004-06-04
Date of Implementation: 2004-12-01
Older Standard (superseded by this standard): JJG 91-1989; JJG 93-1981
Quoted Standard: JJF 1001-1998; JJF 1059-1999; GB/T 10095.1-2001
Issuing agency(ies): State Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to all kinds of gear measuring instruments involute measurement calibration, but does not include the home-tooth tester.

JJF 1124-2004: Calibration specification for Gear involute Measuring instruments

---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 Gear involute Measuring instruments National Metrology Technical Specification of the People's Republic Gear involute measuring instrument calibration specification Released on June.2004 Implementation of.2004-12-01 The General Administration of Quality Supervision, Inspection and Quarantine issued Gear involute measuring instrument calibration specification Instead of JJG91-1989 JJG93-1981 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 Main drafting unit. Zhejiang Institute of Quality and Technical Supervision and Testing China Institute of Metrology Participated in drafting unit. Hangzhou Advance Gearbox Group Co., Ltd. Hangzhou Iveco Automotive Transmission Co., Ltd. This specification is interpreted by the focal point The main drafters of this specification. Mao Zhenhua (Zhejiang Institute of Quality and Technical Supervision and Testing) Zhang Wei (China Institute of Metrology) Participate in the drafters. Ni Deguang (Hangzhou Advance Gearbox Group Co., Ltd.) Xu Chen (Hangzhou Iveco Automotive Transmission Co., Ltd.)

table of Contents

1 Scope (1) 2 Citations (1) 3 Overview (1) 3.1 Mechanical gear measuring instrument involute measurement principle (1) 3.2 Induction line measurement principle of numerical control gear measuring instrument (1) 4 Measurement characteristics (1) 4.1 Top and bottom coaxiality (1) 4.2 The indication error of the micrometric system (1) 4.3 Instrument tooth profile deviation (1) 4.4 Instrument tooth profile tilt deviation and its left and right tooth surface difference (1) 4.5 Instrument tooth profile total deviation and repeatability (1) 5 Calibration conditions (2) 5.1 Environmental conditions during calibration (2) 5.2 Calibration Standard (3) 5.3 Other requirements (3) 6 calibration items (4) 7 Calibration method (4) 7.1 Coaxiality of the top and bottom axis (4) 7.2 Indication error of micrometric system (4) 7.3 Instrument tooth profile deviation (4) 8 Expression of calibration results (5) 9 re-study interval (6) Appendix A Calibration Certificate Page Format (7) Gear involute measuring instrument calibration specification This specification specifies calibration items and calibration methods for involute measurement of gear measuring instruments. When being measured by the gear When the instrument has multiple measurement functions, it should be used together with other specifications to fully evaluate the measurement of its different functions. Sex.

1 Scope

This specification applies to the calibration of involute measurements of various gear measuring instruments, but does not include the upper profile inspection. instrument.

2 Citations

This specification refers to the following documents. JJF 1001-1998 General measurement terms and definitions JJF 1059-1999 Measurement Uncertainty Evaluation and Representation GB/T 10095.1-2001 Involute cylindrical gear precision - Part 1. Determining the deviation of the flanks Righteous allowable value Use of this specification should be done with the current valid version of the above cited documents.

3 Overview

Gear measuring instruments can be divided into mechanical and numerical control. 3.1 Mechanical gear measuring instrument involute measurement principle Mechanical gear measuring instruments are single disc type, grading disc type and lever disc type, etc. It is based on gear involute The principle of exhibition, the theoretical involute is generated by the mechanical mechanism, and the actual curve and theory of the device under test are opened by the sensor. The line trajectory is compared, and the difference is input to the recorder to give an involute deviation curve. Its structure is shown in Figure 1. 3.2 Induction line measurement principle of numerical control gear measuring instrument The numerical control gear measuring instrument adopts the principle of coordinate measurement, through the angle measuring device (circular grating, etc.) and the length measuring device (long Grating, etc.) The coordinate position of the point on the actual curve of the device under test is measured, and compared with the theoretical curve of the involute, the involute is obtained. Deviation curve. Its structure is shown in Figure 2.

4 Measurement characteristics

4.1 top and bottom coaxiality 4.2 The indication error of the micrometric system 4.3 Instrument tooth profile deviation 4.4 Instrument tooth profile tilt deviation and its left and right tooth surface differences 4.5 Instrument tooth profile total deviation and repeatability The above characteristics are listed in Table 1 for reference during calibration. ......

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