Some standard content:
HCS 25.060,20
Machinery Industry Standard of the People's Republic of China
JB/T10028-1999
Roundaess measuring instrument
Roundaess measuring instrument1999-05-20 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
JR/T10028-1999
This standard is designed on the basis of 2BJ42030-89 Roundaess measuring instrument. This standard is consistent with the technical content of ZBJ42030·89, and has been re-edited according to relevant regulations. This standard replaces the standard of July 1420.3089. This standard was proposed and approved by the Technical Committee of Standardization of Jinguo Measuring Instruments. The responsible unit for the drafting of this standard: Shanghai Machinery Factory. The main drafter of this standard: Xin Yumin,
This standard was first issued in 1989,
Mechanical Industry Standard of the People's Republic of China
Roundness measuring instrument
Roundnesn measuring instrumentThis standard specifies the classification, basic symbol number, technical requirements, test force method and inspection gauge of roundness measuring instruments. This standard is applicable to all kinds of roundness measuring instruments.
Referenced standards
B/10028-1999
Daigu Z142030—B9
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T [S464-1995 General Technical Conditions for Packaging of Receivers and Instruments 3 Definitions
This standard adopts the following definitions:
3.1 The sensor, amplifier, filter, and auxiliary output device of the instrument in the egg measuring system
. If the instrument is equipped with a computer, the computer is also included in this system.
3.2 Recording profile
The actual wheel age instrument recorder obtains the observation, which is a kind of indicator wheel. 3.3 Calibration block
The calibration ruler is a small flat hanging body on a circular body. The chord height value of the small flat surface on the radial section of the circular hanging body is the calibration value of the calibration ruler, which is used to check the performance of the instrument. 3.4 Calibration Decision
Elliptical calibration block is an elliptical calibration tool for measuring cross section. It is installed in the grid column and its major and minor axis radius is about 10± (not marked).
4 Instrument classification and basic parameters
4.1 Classification
4.1.1 Receivers are divided into sensor rotating type and worktable rotating type according to the structure type. 4.1.1 The instrument calibration function is divided into ordinary type and multifunctional type. Ordinary type is mainly used to measure the error of the roundness: multifunctional type can measure the error of the grid column and the error of the straightness in addition to the error of the rigidity. 4.1.3 Receivers are divided into A, B, and I according to the error. 4.2 Basic parameters
4.2.1 Main parameters
Approved by the State Bureau of Machinery Industry on May 20, 1999 and implemented on January 1, 2000
JB/T10028-1999
Only the most measurable true diameter and the measurable true diameter of the instrument shall be used as the main parameters of the reader 4.2.2 Bandpass range of the spectral analyzer
1-[5;1-50:1~150:1~300:(1-1500;15-500;15.-1500 taught/r. Note: The pseudo-rings in brackets must be enclosed. 4.2.3 Radius series of various standard probes
0.25mm; 0.8mm: 2.5mm; 8mm: 25mm4. 2.4 Static pressure of the probe
The static pressure of the probe should be adjustable within the range of 0.1-0.25°C. 5 Technical requirements
5.1 Environmental conditions
The instrument should be placed in a room with a temperature of 20+5°C (the temperature change per hour should not exceed 65% of the specified value and the temperature should be less than 0.1°C). The surrounding area should be free of dust, vibration, elasticity, airflow, corrosive gas and strong magnetic field that may affect the measurement. Table
Error category of receiverwwW.bzxz.Net
Change of temperature width per hour
5.2 Appearance
5.2.1 The working surface of the nozzle should not be rusted or rusted, the surface of the chain should be flat and uniform, without spots, peeling, etc., and the joints of external parts should be neat.
5.2.1 For parts with inscriptions and inscriptions, the text and pattern should be clear and uniform. 5.2.3 No There is oil leakage.
5.3 Interaction and relative position
5.3.1 The movable parts of the instrument should move smoothly within the specified range. 5.3.2 The actions of various buttons, operating parts and limit devices should be flexible, reliable and functional. 5.3.3 The measuring time of the instrument should pass through the main rotation center. 5.3.4 The recording range should be consistent with the indication range of the centering table. 5.4 The conversion error of the amplifier
The adjacent gears should not be greater than 3%. The relative relative error of any gear to the calibration gear should not be greater than 5%. 5.5 Calibration error
The calibration error should not be greater than 1%
5.6 Measurement system indication error
The measurement system indication error should not be greater than the specified value in Table 2. 5.7 Measurement system sensitivity range
The sensitivity of the measuring system should not be greater than the specified value in Table 2. 5.8 The return error of the measuring system should not exceed the requirements of Table 2. 2 Instrument error category Measurement system error Test system linear error Measurement system see the whole Measurement system, instrument error can be linear error JB/Tt0028—1999
±[1% of full blood phase + measured
2% of full extraction
±(1.25% of the final range + 3.5% of the reward
value
2.5% of the full original range
±(1.25% of the parent range + 4.5% of the reward)
2.5% of the measuring range
Note: Workbench rotary gyroscope The instrument bottom error also increases the part related to the height of the measuring surface from the factory workbench. 5.9 The linear identification error of the measuring system shall not exceed the specified value in Table 2. 5.10 When there is no input disk, the recorded image of the measuring system shall be a network connected end to end, and the root width of the recorded image shall not be greater than 0.015m. 5.11 The indication stability of the measuring system shall not be greater than 4%. 5.12 The radial error of the instrument shall not exceed the specified value in Table 2. 3.13 The recording wheel shall be connected end to end, there shall be no obvious error in the radial direction, and the circumferential error (or re-spin) shall not be less than 0.8mm. 5.14 - The measurement weight shall not be greater than 0.tm for multi-functional type and not greater than 0.15μm for ordinary type. 5.15 The radial error of the rotary pattern machine at maximum load and eccentric load should be less than or equal to the specified value in Table 2 when the load and eccentric load are increased. 5.16 Instrument axial error
Instrument axial error should not be greater than the specified value of instrument radial error in Table 2. 5.17 Straightness of sensor lifting movement
The true line tolerance of the multifunctional sensor perpendicular to the lifting movement of the lower table (within any 100mm range) is shown in Table 3. Straightness tolerance
5.18 Perpendicularity of the main working surface of the working table to the reference rotary axis
The vertical single tolerance of the main exposed working surface of the sensor to the reference axis is 0.01mm within a measuring length of 100mm. (Test method
6. Test conditions
1999-10028
The instrument is tested under the environmental conditions specified in 5.1. 6.2 External run , the interaction and mutual position
are checked by visual inspection and manual distance. .3 Conversion error of amplifier
Taking 1000 times and 5000 times as an example, the magnification is "11M000", remove the matching solution (variable limit sensor probe movement) and adjust the output adjustment knob to make the centering dial pointer coincide with the left scale line of the dial, and record the first circle image: then set the magnification to "5000", record the second image; set the magnification to "1000m\", turn the output adjustment knob to make the centering dial pointer coincide with the right scale line, and record the third image; then set the magnification to "5000" to record the fourth image. Obtain the ratio of the radial distance between the first image and the second and fourth images, and then the conversion error of the magnification between the adjacent gears can be obtained according to formula (1):The ratio of the spacing to the signal number × 100% The ratio of the fire repair effect to the north
Use the same method to check the conversion error of each adjacent file. The conversion error of the total file relative to the calibration file is the algebraic sum of the conversion errors of each adjacent file between the arbitrary file and the calibration file. h4 calibration error
The instrument is equipped with a short rod, the oscillator is set to the \1-500 file, and the instrument magnification needs to be at the "2000" file. Then the instrument can be tested by dynamic or static methods. Dynamic method: After the calibration block of about 10μm is accurately aligned with the instrument's calibration axis, record its recorded accuracy at the middle position of the recording range: and read its measured value. Static method: Use a micro-feed device or a disk block to feed the sensor head about 10μm in the measuring direction, and record the images before and after the feeding at the middle position of the recording range. The distance between them is the measured value. The calibration error is calculated according to formula (2): measured value = actual value
actual value
where: actual value = the calibration value of the calibration block, the actual feed value of the micro-feed sensor or the measuring block. 65 Egg measuring system indication error
The instrument is equipped with a disk pair, the filter is set to the "1~0" position, and the indication error is tested by dynamic method or static method. Dynamic method:
In each gear of the instrument, measure the calibration value of the calibration block equivalent to the value of 20mm on the recording paper of that gear, and record its recording rate at the middle position of the recording range. The difference between the measured value and the calibration value is the error value. Note: When using the dynamic method to check the 1000U times and 1000U tube with a display of 1, the allowable limit value of the required system is within the specified lower limit of 2 and less than 1% of the value.
Static method
In each gear of the instrument, use the micro-feed sensor head to feed the equivalent of 20mm on the recording paper, and record the image before and after feeding, respectively, at the middle position of the recording: the radial difference between the image and the feed is the difference. 6.6 Sensitivity of the measuring system
Set the instrument magnification to the highest setting for normal use of the instrument, use a micro feed device with a sensitivity not greater than one-half of the instrument's sensitivity, give the sensor a displacement of 0.1m, then record the image, and continue to feed in the same feeding direction for the specified sensitivity as specified in Table 2 JE/T10028-1999, then the recorded image must have a visible radial displacement at the corresponding position. 6.7 Return error of the pressure measuring system
Set the instrument magnification to the highest setting for normal use of the instrument, use a micro feed device with a return error not greater than one-half of the instrument's return error, give the sensor head a displacement of more than U.μm in both directions, then record the image. At the same time, continue to feed about 4.4m in the feeding direction, and then return to the position before the second feed. The measured value is the diameter difference of the image recorded by the film before the first feeding. In the inspection between the two traces, the larger measured value is the fixed value: 6.8 Measuring system linear error
The short measuring rod is installed on the instrument, the filter is set to "1-500", and the output adjustment knob is in the middle position. Use the dynamic method or static method to check the linear error of the instrument magnification at the high, minimum and "20" gears. Dynamic method:
At each magnification of the instrument, measure the calibration value and place it on the calibration block with a value of 10mm on the recording paper of that gear, and use the sensor to change its working position. Record a recording wheel at the inner, middle and outer positions of the recording range (the highest magnification of the instrument is not allowed to use the output adjustment button at the same time), and take the maximum difference between them as the error value. Dynamic method:
At each magnification level of the measuring instrument, make the recording range at the single, middle and outer positions of the recording range, and use the micro-feeding device to feed the sensor probe on the recording paper with a feed amount of 10mm. In three feedings, the maximum difference between the radial direction of the recorded image before and after feeding is the error value.
6.9 Recording image of the measurement system without input Install the instrument on the measuring rod, and use the limit frame and other methods to limit the movement of the probe, set the filter to the "1-500" gear, and set the instrument magnification to the highest gear for normal use of the instrument, and take the images recorded near the inner and outer edges of the recording range as the inspection object. 6.10 Indication stability of measuring system
Set the instrument magnification to "2000", filter to "1-500", and use dynamic method or static method to check the indication stability of the measuring system.
Dynamic method:
After the electrical part of the instrument is turned on for 0.5h, measure the calibration block of about 101m, record a display wheel, and take the average value of a measured value as the output. Then turn on the machine again, record another display wheel, and take the average value of a measured value as the output. The indication stability error is calculated according to formula (3):
Static method:
Ha-H1x100%
After the electrical part of the instrument is turned on for 0.5h, the micro-adjustment device gives the transmitter and the transmitter a signal at a time. The probe is 10m away from the same place, and the average value of the radial difference before and after the trace is obtained on the recorded image. Then the same method is used to obtain the average value after the instrument is turned on for 4h. Then the indication stability error is calculated according to the same formula of the dynamic method: 6. Instrument radial error
Set the polarizer to the highest gear for normal use of the instrument, and the filter to the "1-500" gear. After accurately adjusting the center of the standard hemisphere, record the position of the recording wheel in the measuring range. The roundness error obtained by the small area method is the instrument radial error. When necessary, the error of the standard hemisphere can be removed, and the instrument can be expanded to a high measurement height. 5
6.12 Recording wheel
JB/T 10028—1999
The recorded profile of the radial error of the test instrument should be connected end to end, with obvious radial misalignment, and the circumferential gap (or weight) should not exceed 0.8 mm
6.13 Test disc reproducibility
The test method in 6.11 is the same as that in 6.11. On the same test strip, the maximum lateral displacement of the recording wheel recorded on the same recording paper is the error value.
6.14 The radial error of the instrument under large load and eccentric load is calculated by 6. 11. Check the radial error of the instrument using the test method specified in 6.15. Instrument axial error adjustment
Set the instrument magnification to the setting for the instrument, set the instrument tube to "1-50", use the sensor probe or the measuring shoulder probe to contact the surface of the product (or the top of the ball) that is precisely perpendicular to the axis of rotation of the sub-base, and minimize the probe rotation radius. Evaluate the radial difference of the recorded image according to the smallest area to find the axial error of the instrument data. 6.16. Sensor lifting motion straightness
Select the appropriate instrument magnification and filter mode, and set the standard The standard cylindrical angle ruler is placed on the workbench and coaxial with the reference rotation axis. The straightness error value evaluated under the minimum condition is used as the verification value. When the straightness error of the standard cylindrical angle ruler exceeds the requirement, the standard cylindrical angle ruler can be rotated 180 degrees and the measuring direction can be changed. The same straight line is measured separately. The points of the corresponding points on the two parallel recording curves are connected to form the error. The straightness error evaluated under the minimum condition is used as the verification value.
6.1? The main working surface of the workbench is perpendicular to the reference axis. Use the sensor probe or the measuring table to measure the main working table, and take the ratio of the eccentricity of the center of the recorded image relative to the rotation center of the recording paper (or one-half of the micrometer pointer) and the rotation radius of the probe as the calibration value. 1A This instrument transportation and storage test
The instrument shall be packaged according to 15464 and factory requirements for this test, or 1 related zinc parts (such as spindle, sensor, other related parts of the high-precision linear motion, various electrical boxes and computing systems, etc.) shall be tested. After the related parts are tested, they should still be installed on the instrument. After the instrument has been tested in all tests (or after the sea test), the relevant technical requirements shall still meet the requirements of the standard. 6.18.1 High temperature test
The drum test piece shall be gradually heated to 55t2℃ (the heating rate shall not exceed 19/min) with the test environment, and maintained for 8h. Then gradually cool down to the instrument working temperature and take it out.
6.18.4 Low temperature test
The test environment is gradually cooled to -40℃, and the cooling speed is not fast. After that, keep the temperature until the instrument working temperature and take it out:
6.18.3 Wet heat test
The test piece is heated to 55℃=2℃ in the test environment within 4h, and the relative humidity is 95%, and it is kept outside for 1h. Then the temperature is reduced to 25℃±3℃ within 3h, and it is kept until the end of 24h. 6. 18. 4 Transportation test
The test piece is loaded into a 1.4t car (the loading is about one-third of the full load), and it is driven on a three-level highway for 200km1, and the speed is 30-40km/h-
Test rules
7.1. All devices are subject to factory inspection. The tests for factory inspection are carried out in accordance with the methods specified in 6.2-6.17. 7.2. Type inspection. The type inspection of the instrument is generally carried out when new products are trial-produced, product packaging has major changes, or when the national supervisory agency makes a request. The type inspection items are carried out in accordance with the methods specified in 6.2-6.18. Marking and packaging. 8.1. The name, model and year of manufacture of the instrument are marked on the receiver. 8.2. The packaging of the receiver shall comply with the provisions of GB154.
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