JJF 1109-2003 Runout Tester Calibration Specification JJF1109-2003 Standard download decompression password: www.bzxz.net
This specification applies to the calibration of gear runout testers and runout testers.

Metrology technical specification of the People's Republic of China JJF1109—2003
Calibration Specification for Concentricity Tester Issued on 2003-09-23
Implementation on 2004-03-23
Issued by the General Administration of Quality Supervision, Inspection and Quarantine JJF 1109--2003
Calibration Specification for Concentricity Tester
JJF 1109—2003
Replaces JJG 88—1983
This specification was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 23, 2003, and came into effect on March 23, 2004.
Responsible unit:
Main drafting unit:
Participating drafting unit:
National Technical Committee for Geometric Length Metrology Beijing Institute of Metrology
China National Institute of Metrology
This specification is entrusted to the responsible unit for interpretation
Main drafter of this specification:
Cui Zhenxiao
Participating drafter:
JJF 11092003
(Beijing Institute of Metrology)
(Beijing Institute of Metrology)
(China National Institute of Metrology)
(China National Institute of Metrology)
References
Metrological characteristics
Indicator table
JJF 1109—2003
Parallelism of the center line of two tips to the longitudinal movement of the slide plate
Parallelism indication error of the center line of the fixed tip and the movable tip to the guide rail
5 Calibration conditions
5.1 Environmental conditions
Standard instruments and other main equipment
6 Calibration items and calibration methods
Calibration of indicator gauges
Parallelism of the center line of two tips to the longitudinal movement of the slide plate
Parallelism indication error of the center line of the fixed tip and the movable tip to the guide rail
7 Expression of calibration results
8 Time interval for recalibration
Appendix A Format of the calibration certificate
1 Scope
JJF 1109—2003
Calibration Specification for Runout Tester
This specification applies to the calibration of gear runout tester and runout tester. 2 References
The texts contained in the following documents constitute the provisions of this specification through citation in this specification. When this specification is published, the versions shown are valid: All standards, specifications or specifications will be revised, and the parties using this specification should explore the possibility of using the latest versions of the following documents: JJF1001—1998 General Metrology Terms and Definitions JJF1059—1999 Evaluation and Expression of Measurement Uncertainty GB/T 10095,2-2001 Involute cylindrical gears - Precision Part 2: Definition and allowable values ​​of radial comprehensive deviation and radial runout
GB/T13924-1992 Involute cylindrical gear precision inspection specification GB/T15481-2000 General requirements for the competence of calibration and inspection laboratories JG34-1996 Verification procedure for indicating gauges (micrometers and dial gauges) JG39-1990 Verification procedure for mechanical comparators 3 Overview
This type of instrument is mainly used to measure the radial runout of the gear ring of cylindrical gears, bevel gears, and worm gears, as well as the radial circular runout of rotating parts such as shafts and disks, see Figures 1 and 2. Figure 1 Gear runout tester
Metrological characteristics
JJF 1109-2003
Figure 2 Runout tester
4.1 Indicator
The dial gauge and mechanical comparator used in the instrument shall comply with the requirements of the verification regulations of JJC34-1996 and JJG39-1990 respectively.
4.2 Parallelism of the center line of the two tops to the longitudinal movement of the slide plate The parallelism of the center line of the two tops of the gear runout tester to the longitudinal movement of the slide plate shall not exceed 0.010mm in the vertical direction and 0.015mm in the horizontal direction over a length of 100mm.4.3 Positioning repeatability
The positioning repeatability of the gear runout tester shall not exceed 1m. 4.4 Parallelism of the center line of the fixed top and the movable top to the guide rail The parallelism of the center line of the two tops of the runout tester to the guide rail shall not exceed the requirements of Table 1. Table 1
Measurement length
Parallelism (horizontal direction)wwW.bzxz.Net
Parallelism (vertical direction)
For instruments with special requirements, calibration shall be carried out in accordance with the index requirements provided by the instrument manufacturer or determined by the user according to needs.
4.5 Indication error
The indication error of the run-out checker (equipped with a sub-meter) shall not exceed ±5ml Note: Calibration does not make a conclusion on whether it is qualified or not. The above requirements are for reference only. 5 Calibration conditions
5.1 Environmental conditions
Temperature requirements: (20±5),
5.2 Standard instruments and other main equipment
Standard indicator: graduation value is 1um
Special table stand;
JJF 1109 2003
Standard spindle: straightness is greater than 2um, the outer circle of the spindle and the circular runout of the center hole is not more than 2um; eccentric shaft: eccentricity is (20～30)um, the expanded uncertainty of its measurement value is not more than 1um (h=3), the outer circle of the shaft relative to the center hole is not more than 1um, see Figure 3, Figure 3 Eccentric shaft
Other non-circular shafts that meet the above requirements are allowed to be used. 6 Calibration items and calibration methods
Before calibration, it is necessary to confirm that there are no appearance defects and mechanical failures that affect the correct implementation and calibration results of the calibration. 6.1 Calibration of the indicator
Carry out according to the corresponding calibration process.
6.2 Parallelism of the center line of the two items to the axial movement of the slide plate When calibrating the gear runout tester, use two standard mandrels with a length difference of 100mm to calibrate at three different positions of the slide plate. Put the standard mandrel between the two tops, use the magnetic table holder to make the measuring head of the standard indicator contact vertically with the upper surface of the standard mandrel, or almost contact with the side surface of the standard mandrel, move the slide plate longitudinally, and the maximum difference in the change of the indicated value should meet the requirements of 4.2:
6.3 Positioning repeatability
When calibrating the gear runout tester, put the standard core between the two tops, align the measuring head of the standard indicator with the same position of the standard mandrel, repeatedly press the measuring handle, and measure in reverse for no less than 10 times. The worst value of the change of the indicated value should meet the requirements of 4.3.
6.4 Parallelism of the fixed item and the movable top center connecting the guide rails. Install a standard mandrel with a length corresponding to the measuring range between the two tips of the deflection tester. Make the measuring head of the standard indicator contact vertically with the upper surface of the standard mandrel in the vertical plane, or contact horizontally with the side surface of the standard mandrel in the horizontal plane. Move the meter stand and record the maximum change in the indication of the indicator in the full range. The average value of the two measured readings should meet the requirements of 4.4:
For deflection testers with a larger measuring range, the force method of segmented detection is also adopted. It is carried out at the two ends and three positions in the middle of the instrument. The results should also meet the requirements of the corresponding length in 4.4. 6.5 Minimum error
6.5.1 When calibrating the gear runout tester, place the eccentric shaft between the two tops, adjust the measuring head so that it is in vertical contact with the generatrix, rotate the eccentric shaft for one circle, and note the maximum change of the indicator gauge: perform three measurements, and compare the average value of the three measurements with the actual eccentricity of the eccentric wheel. The difference should meet the requirements of 4.5. The calibration of the indication error is allowed to be carried out on standard gears of grade 4 or above. 6.5.2 When calibrating the runout tester, place the eccentric shaft between the two tops, adjust the indicator gauge so that the measuring rod is in vertical contact with the generatrix of the side surface (horizontal) of the eccentric shaft, and after finding the maximum point, rotate the eccentric shaft for one circle, and note the maximum change of the indicator gauge. Perform three measurements, and compare the average value of the three measurements with the actual eccentricity of the eccentric shaft. The difference should meet the requirements of 4.5. Requirements
Expression of calibration results
The calibration results should be reflected in the calibration certificate or calibration report. The calibration certificate should at least include the following information: 1) Title: Calibration Certificate:
2) Name and address of the laboratory, place where the calibration was performed (if different from the address of the laboratory); 3) Unique identification of the calibration certificate (such as serial number) and identification on each page to ensure that the certificate can be clearly identified as belonging to the calibration certificate; 4) Name and address of the customer;
5) Statement on the use of this specification as the basis for calibration; 6) Description, status and clear identification of the calibration items; 7) Calibration date;
g) Calibration results with measurement units;
9) Signatures of the calibrator, verifier and approver; 10) Environmental conditions;
11) Statement on the measurement uncertainty and (or) compliance of the calibration results with the recommendations of this specification; 12) Evidence of measurement traceability.
Recalibration time interval
The recommended recalibration time interval is 1 year.
Appendix A
Calibration certificate number:
Calibration basis document:
Calibration standard name:
Calibration validity period:
JJF 1109...2003
Calibration certificate page format
Temperature:
Humidity:
Calibration items
Indicator table
Parallelism of the center line of the two items to the longitudinal movement of the slide Customized repeatability
Parallelism of the center line of the fixed item and the movable item to the rail Indication error
Measurement uncertainty of the indication error is:
Important statement:
Calibration results
This result is only valid for the calibrated instrument. Without the written approval of the calibration unit, partial reproduction of the certificate is not allowed:
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