Some standard content:
UDC 535.B22
National Standard of the People's Republic of China
GB 3719--88
Tool microscope
Tnulmaker's microscope
1988-01-08 Issued
National Standard Issued
1989-01-01. Implementation
National Standard of the People's Republic of China
Tool microscope
Toolmakers microscope
UDC535.822
CBatg88
Compared with GB3718-83
This standard applies to tool microscopes which measure the length and angle of workpieces (including screw-type components) by rectangular coordinates or jagged coordinates. Basic parameters and dimensions
The basic parameters and dimensions of the sensor shall comply with the provisions in the table 1
Starting position
Longitudinal and transverse micrometers
Day appearance
Formation ratio
Working weight
Central product magnification unit
Mirror magnification
Environmental magnification
The central area relative to the magnification ratio is the straightness of the forged object (mm). Technical requirements
The surface of the instrument should be beautiful, and the following requirements must be guaranteed: 4
The surface of the micrometer should not be peeling
Sensitive micrometer
0 - 50
The paint should not have oil rolling and the color on the side of the product should be uneven; c. There should be no burrs on the surface of the parts, and the sharp edges of the external parts should be padded. Large-scale microscope
0 ~ 154
0 - 50
o -- t5n
10 ≤: 30×, 50×
3×-5×
2G.67 6.514.0
d: The joints of the external parts should be neat and smooth without unevenness. 2.2 There should be no rust, scratches, obvious damage, or other defects that affect the measurement on the working surface of the instrument. Universal tool microscope
2. The surface of the optical parts should not have obvious changes, spots, water, zero points and other defects. The bonding surface of the optical parts should not have air filtration and debonding.
National Machinery Industry Association approved 9-01-1 on December 28, 1987
GB371988
2:4 "All instrument fixing parts should ensure the fixing accuracy. All engravings on the instrument should meet the following requirements: The technical conditions for engraving should comply with GB1784 "General Technical Specifications for Optical Reticles" and GB17 85 "Optical Instruments - Models and Symbols" 2.6 The movement and rotation of each active part of the instrument should be smooth, without any jamming, looseness or total jump. The optical system of the instrument should be clear.
The optical micrometer device should not have obvious parallax. 2.8
The horizontal meter scale should be parallel to the moving direction of the longitudinal and horizontal slides (worktables) respectively, and should not have obvious deflection. 2.9
2, 10 The vertical meter scale should be on the moving surface of the longitudinal and horizontal slides (worktables) respectively. On the entire length of the variable meter scale, all 2.11 The main technical indicators of the instrument shall comply with the provisions in Table 2: ... The maximum error limit of the optical measuring device is km
, the net moving straightness of the seat (including the workpiece) is: the angle) in the surface plane is too flat, the sliding damage (worktable), the moving line (micrometer) in the vertical direction is independent of the original, the square is still high, the vertical straightness of the whole moving (worktable) is fast and the two pairs of systems, the micrometer seat (worktable) movement is m
, small tools
, large tools
, on a length of 1m
, ±0.7
h,10 mm long seat. ≤ 2
Universal tool display
On 1 mm long
:±0.5
Longitudinal:
Directional:≤5
GB 3719 08
Continued Table 2
Small tool display
Parallelism of the moving surface of the workbench (workbench) to the longitudinal direction
Center continuous maximum error
When the stand is in the "share" position, the verticality of the moving direction of the microscope to the workbench when the stand is in the "pregnant" position. When the stand is in the "pregnant" position, the moving direction of the microscope to the workbench surface
When the stand is in the " "When the microscope is in the "position", the rotation of the microscope in the moving process
When standing in the "flat" position, the comprehensive influence of the microscope light extraction and the light grain on the straightness of the worktable is divided into the longitudinal parallelism Hm
and the inner card:
The inner needle and the outer needle are held back when the original needle rod rotates.
The sub-cohesion of the two needles in the horizontal plane m| |tt||When the distance between the needle and the measuring plate is 20mm
The distance between the needle axis of the hole meter frame and the measuring plate is larger
When the vertical column of the measuring frame moves [within the range of 0\～=12\], in the plane of the center of the measuring frame, the position displacement of the aiming point of the measuring mirror (single displacement)
The front displacement
The horizontal plane of the positioning center axis of the measuring device without center movement (within the range of 01~±12) (Single) Large tool digital mirror Wheel effect Reading display Universal tool mirror Optical digital Reading effect: Reading display On 100mm long # When using the angle measuring day, 1× and 3× objects, when the wheel is used, the chain of each object should not be twisted by 0.15%. a Strictly use the measuring block for inspection, both sides Please clarify 4G
,
GB3719-88
Continue Table 2
Small industrial opening
Effective town
The center axis of the scorpion system slide (industrial stop) in the vertical plane of the dream square
The actual installation of the V-frame at different distances
Accurate angle eyepiece angle measurement room medical
When the angle dial is located at "", the state of the longitudinal slide seat is disturbed by the people (Workbench) moving direction parallel to the angle measurement cross intersection and the coincidence of the pressure plate rotation center μm
Thanks to the angle eyepiece, the workbench and the optical machine to restore the measurement reputation
The horizontal scale of the eyepiece cross is in the "pregnant" position. When the horizontal scale is in the direction of the sliding seat (workbench), the horizontal scale is close to the movement of the sliding seat (workbench).
The double eyepiece double image is adjacent to the series difference
The optical positioning
When the trajectory of the optical locator is subverted When the worktable plane is accurate, the positioner is in the position of the corner stone. The measuring force of the optical positioner is limited by the measurement force of the optical positioner. The second transmission table or the surface of the table can be adjusted by the vertical and horizontal virtual movement of the worktable. The parallelism between the self-positioning center of the worktable and the calibration center of the worktable is pr. The Y-shaped frame is palm-shaped;
When the height between the Y-type and the frame is 75mm;
When the length of the large plastic tool is 10mm,
When the V-type frame is 150mm:
Object surface:
<1/6 of the critical value
The positioning double engraved lines should be on the largest spacing between the lines on the angle-eliminating mirror plate
0.1 ±3.03wwW.bzxz.Net
Diameter: ≤20
100
Accuracy of the dividing head
Parallelism of the dividing head needle axis gauge to the moving direction of the seat (workbench)
Radial diagram of the dividing head needle when rotating with the main shaft
The end face of the external fixed head shaft moves
The parallelism of the axis velvet at the top of the high pin to the moving direction of the workbench is μm
GB3719-88
Type tool display
The distance between the top needle gauge and the upper core surface of the auxiliary measuring knife washer is m
The radial reading fee of the high top needle pre-needle
The positiveness of the base level
Optical selection
Hematological instrument display
Optical slow chapter
On 100mm: <15
After the instrument adjusts the pen level, the circular level should not leak water or not. The calibration limit error of the instrument is mm. Note: -
Measure length.
The range of height between the two markings on the ruler is m. The working speed of the digital instrument should not be lower than 60m/s. The main safety indicators of the instrument should comply with the provisions of Table 3. Continuous test voltage: 1G000>1 (maintain for 1 minute) Interference: 5 points: ≤5 (peak value) The digital instrument should have a certain interference resistance. After the instrument is interfered, the last digit of the indication should not exceed plus or minus one 2.14. When the instrument is packed and transported, it should comply with the requirements of ZBY002 Basic environmental conditions and test methods for instrument transportation and storage under transportation and frequency storage conditions.
Among them,
9. High temperature: +55
b. Low temperature, -40°C,
Drop coefficient: 260mm
GB71988
According to the needs of users, the manufacturer should ensure that all (variable parts) meet the accessories in Table 4. Table 4
Angle measurement
Smoke desire to grab numbness
National spot wheel self-environment
And the most and sleep
1 × physical key
× physical chain
5x objective lens
10× physical structure
Top frame
Sick needle frame
No center tool
2-way measuring instrument G8609385
a, ruler is 25mm
b, size is 50m
c, size 75r
Measuring block ears
Plane working chamber
En working meeting
Dividing mouse head
Optical positioner
Tool measuring device
Regular rod
Bulb centering study
Reverse lighting device
Synchronous lighting device
Angle measurement has been confirmed Light device
All kinds of work items
Bulbs
Small tools
Microscope
Large tools Digital mirror
Light symptom display
Optical continuous
Product display
Trust: "+" table warp users need, Chuangchu factory skin can full screen (European part) supply, *" loss indicates that this type of instrument does not have this Appendix 3 Test (test) method
3, 1 When the instrument is tested, the requirements for indoor temperature are shown in Table 5. 6
The temperature change should not be exceeded
The error of the receiver and the control should not exceed the time h of the average temperature of the beans being tested
GB 719B8
Small tool
Star micrometer
20 ±3℃
Large tool microscope
Lack of wheel and digital display
Universal tool microscope
Optical reading
Optical reading
202℃
Inspection of the instrument's appearance quality, optical surface quality and imaging quality. 3.2
Daily test:
3.3 Interaction test of the instrument structure and end points
3,4 Accuracy test of the instrument (longitudinal and lateral), 34.1 Inspection tool
Digital display
Standard separation plate, the separation length shall not be less than the measurement range of the instrument under test. The division value is 1㎡, and the control limit error is = (0.2+152)um.
Note: "" is the distance between any two scale lines on the scale, m. 3, 4.2 Method
Set the standard scale on the central part of the instrument workbench so that it is parallel to the workbench travel direction, and the instrument is in the "learning" position. Use the double scale in the wheel mirror to calibrate the scale of the standard glass scale, and record the reading from the micrometer in the longitudinal direction. Then check one point every 25m, and record the value of each point from the micrometer in the longitudinal direction. The effective numerical difference between any two points should not exceed the provisions of this standard. The instrument should be inspected horizontally according to the above-mentioned method. The forward and reverse travels of the working body should be inspected and should meet the requirements of this standard. During the inspection, each point should be read repeatedly, and the arithmetic mean value should be taken as the measured value. The measured value should be corrected according to the correction table of the standard glass scale.
3,5 The accuracy and return error test of the longitudinal and transverse micrometer 3.5.1 Test tools
The same as Article 3.4.1.
3.5.2 Test method
In the range of 25mm to 25mm, check two 5mm test points, the method is the same as Article 3.1.2. The difference in the indications at the micrometer-pulling point during the three-way and reverse stroke tests is the return error. 3.5,1 When using the gauge block, the indication error test of the instrument longitudinal and transverse directions 3.5,1 The same as Article 3.1.1.
3.6, 2 Inspection We sent
Fix the standard scale on the instrument on the center of the workbench, parallel to the workbench scale stroke, and connect it to the micro-operator at the "zero" position (or 26mm㎡), and use the double-engraved velvet cat in the eyepiece to align the scale of the standard glass scale. And record the reading on the longitudinal micro-screw 7
GA3719-88
support as the starting reading, and then place pads of 25, 50, 75, [U center and .125mm (for small tools) in the longitudinal direction between the plate and the measuring lamp! The microscope is 25 and 50mm (with the power tool provided by the instrument to be controlled), and the double-line scale in the environment is full of lines. The readings of the corresponding points are recorded from the longitudinal direction. The readings of the control points and the starting point of the instrument shall not exceed the provisions of this standard. The instrument must also be tested in the same direction. During the test, each point is also reversed and the average value is taken as the measured value, and then the measurement is corrected by the standard scale.
3, in order to make sure the leakage of the horizontal filling milk plate, 3.7.1 inspection work J
a" use of the tube
h, with a special workbench with right lan;
c. The scale is 1.00, 1.2, 1., 1.u6, 1., 1.1u, :.2u.1.3c, 1..1.m, 1.60., 7u... . 1.9n.2.a = all the solution
3, 7.2 more comprehensive method
will be with optical tube, with light and with three balls of work storage special month! The single line of the optical stop is respectively fixed on the mirror and parallel to the longitudinal direction of the seat, and the center of the spherical surface is aligned with the three steel balls of the three working tables (the center line of the measurement is aligned with the plane of the three steel balls), and then the 15 mother blocks mentioned in Article 57 are installed for frequency measurement 024060,80,190.200,3010050, 65, 780u, 90u1000Jm15 points for cavity inspection. Each point should be calibrated and read four times, and the technical average is taken as the optimum measurement point. The error between any two points should not exceed the technical standard. The test method for the longitudinal direction is the same as that for the longitudinal direction.
3，8 In the course of longitudinal and transverse optical measurement, first check any line on the micrometer scale, align it four times in each direction and read the numbers. The average of the readings in the positive direction and the average of the four readings in the reverse direction should not exceed the standard error of the machine 3，9 In the course of longitudinal and transverse optical measurement, first check any line on the micrometer scale on the micrometer scale, align it four times in each direction and read the numbers four times in the positive direction and read the numbers four times in the reverse direction. The average of the readings in the positive direction and the average of the four readings in the reverse direction should not exceed the standard error of the machine 3，9 In the course of longitudinal and transverse optical measurement, first check whether the micrometer scale on the micrometer scale is at "zero". If the micrometer scale is not in the middle of the tenth pair of double scale lines, check whether the micrometer scale is in the middle of the tenth pair of double scale lines. If it is not in the middle, an error will occur.
The inspection work should be carried out in five consecutive positions of the micrometer scale. If an error is found, press the magnification formula! ) calculate the JB-
Wu Zhongsa,
the state of the m.2
with, um
the six old meters used for Chinese medicine, the tea branch line exceeds the Li meter point, the cable is corrected, and the straightness (and value) of the movement is checked according to (the table) 3.10
3,10,1 inspection work
self point: Wei Ying not in"
b, plane reflection late.
3..10.2 inspection Wan sent
will be self-calibrated instrument and Large (or small) work! The display is made on the same level, and the reflection key is placed on the instrument workbench: facing the microscope, the white standard is installed on the instrument, and the white standard is moved separately, and the quality is removed from the workbench. The change of the indicated value in the official standard 8
CF3719-28
point instrument is observed at the same time, and the difference between the maximum indicated value and the minimum indicated value is taken as the measured value. In the required straight and horizontal planes; the straightness collision shall meet the requirements of this standard. 3, 11 levels, straightness (line value) inspection of sliding (workbench) movement 3 .11:1 Test
a. Special ruler: Length should be 1m, working surface flatness should not exceed 3, torque: not too low.
3.11..2 Test method
Set the half ruler as the instrument working part (final center position), make the workpiece workpiece and the workbench directly under the workbench, make the measuring head of the torque measuring instrument set on the recovery and scan the surface of the ruler, adjust the working table (or ruler), make the two ends of the ruler parallel to the longitudinal travel of the slide seat (workbench), move the ridge rate (working part) between positive and negative, and The maximum change of the measured value is the horizontal straightness. Turn the ruler 90 degrees, and put the working surface on the ruler. And the micrometer is in contact with the working surface of the ruler. Adjust the ruler so that the working surface of the ruler is almost the same as the sliding table (working table), and move the table (working table) in the opposite direction. The maximum change of the value read on the micrometer is the straightness when measuring in the vertical direction. The method of measuring in the horizontal direction is the same as that of the horizontal direction, and the micrometer is 3. 12. 1. Test [!
Day: Right angle iron: The length should be large enough to be tested on the instrument workbench. The straightness error should not exceed 2", and the straightness should not exceed .m
. Torque measurement: The accuracy should not be lower than m.
3.12.2 Test method
Select a point angle to fix on the instrument (pay attention to the full stroke test), so that the torque storage fixed on the mirror can be used to make the test single head and the self-iron The long side of the working surface is connected, and the straight iron is adjusted to make the long side of the ear finger missing in the horizontal mu half of the longitudinal inquiry 1 process, and then the other side of the straight lock is used to check the parallelism of the horizontal stroke between the slide book (workbench). Small micro, the length should not exceed! m
Large T-tool modification: the grid quality is (, mm, the length of m should not exceed
7mmk should not exceed 5.5H
Universal common product: the length should be m.
3.13 Gold net to the object weight for longitudinal, appropriate direction to bring out (workbench) appropriate surface medicine parallel inspection 3. 13. 1 Inspection [1
, four flat rulers, the length is the person on the inspection instrument will be under the workbench, the flatness of the work does not exceed! The two working surfaces cannot exceed 1.m
b, lower scale,
3,13,2 inspection method
Place the four-meter scale on the enterprise storage table, make the lower scale on the fixed orthodox top and the flat surface of the work surface, move the slide, and show the maximum change ratio of the lower scale value. For the universal mirror of the factory, the horizontal requirement is to be connected in two different positions in front of and behind the limited evidence table, and the horizontal requirement is to be inspected in three positions: A, B, and C. For large and small microscopes, the requirements are left, right (horizontal), front, and back (vertical) positions to obtain the largest position. 3.14T Make a glass table and inspect the length of the moving surface of the workbench 1 in the longitudinal and axial directions. 3.14.1 Inspect the measuring scale. 8.14.2 Inspection method GB571988 The special bracket with the measuring scale is fixed on the table, so that the measuring head of the measuring scale is in contact with the table surface, and the measuring head moves longitudinally and longitudinally. The maximum change of the thousandth value is read as the value. 3.15 Magnification error inspection of central microscope 3.15.1 According to the inspection tool, the scale value is 1m, and the inspection limit error is 3um. 3.15.2 Inspection method Use the angle eyepiece At the same time, place the standard scale on the instrument working surface and use the central display lens as the reference. For 1× and 3× objective lenses, make the two scale lines 5.4mm apart in the eyepiece coincide with the corresponding scale lines on the scale. If they do not coincide, align the workbench and read the error from the micrometer device (the correction value of the scale should be taken into account). Use the wheel to align the sundial, use the wheel to aim at the double-sided mark in the eyepiece, and check the rest according to the above method. 3.16 When the vertical position is at the "zero" position, when the display lens bracket moves on the vertical position, its moving direction is perpendicular to the workbench glass from the table surface. 8.16.1 Inspection tools
1, right angle iron: same as Article 3.12.1
b on the scale.
8 ,18,2 Inspection method
Fix the right angle iron on the receiver workbench (the short side working surface of the right angle iron contacts the glass table of the workbench), make the two dial heads of the micrometer fixed on the microscope (the disc axis passes through the center axis of the microscope) touch the long side working surface of the right angle iron, move the microscope frame, and measure the vertical and upward changes by 4X and 4 respectively, and calculate the total error by =-4. Small tool microscope: The total error should not exceed 0.088tim on a length of 100mm. Universal tool microscope: The total error should not exceed 0.06mm on a length of 100mm. 3,11 When the vertical pull is in the 4" position, the moving direction of the microscope is checked for the verticality of the glass table of the workbench. 3.17.1 Inspection tools
Same as 3.18.1.
3.17.2 Inspection method
Same as 3.16.2, use the micro-motion mechanism to raise (or lower) the collar for inspection. For small and human-type tool microscopes, the total error on the 16.mm length should not exceed 0.014mml universal tool, and the total error on the 16mm length should not exceed 0.009mmml3, 18 when the vertical position is zero, the microscope screen is moving through the rotation inspection 318.1 Inspection tools.
day. Crosshair points such as plate: the parallelism of the two sides should not be false 1. b. Parallel products with a thickness of 40mm.
3. 18, 2 Inspection method
Put a ten-line graticule on the instrument workbench (on the scale line): Use the central microscope to align the image of the graticule with the horizontal scale line of the goniometer eyepiece, then place a parallel flat display with a height of 40mm on the graticule, and raise the display to make the image of the crosshairs of the secondary graticule re-aligned in the eyepiece. If the image is not parallel to the horizontal scale line, turn the goniometer handwheel to make it parallel, and the rotation amount of the ten-line on the goniometer eyepiece is taken as the measured value. When the stand is in the "love" position, the central display axis and the optical axis have a combined effect on the verticality of the working surface 3.19
3.18, 1:
Testing tools
The scale is 2mm and m.
3.T9.2 Inspection method
GD 3T19 --88
Grind the 2m and 2mmmm blocks together (the surface size is 30mm and need to be grinded 23 times on the E workbench, and the light will be rotten) In the small position of Guangzhou Road, when the wine passes through the center, it will appear that it is burning, and then you will press the button after the M 2 central card disappears. The images of the two measuring surfaces of the mm gauge should not be equally clear (for example, if the same side of the measuring block appears twice, it is the grinding error of the measuring block on the teeth. This inspection should be performed on two mutually perpendicular surfaces. 2. Check the direction of movement of the original needle holder clockwise (worker) 3.20.1 Special small potassium, the length should be six. The distance between the tester and the working table should not exceed 2m, and the radial circle drawn by the center of the indicator should not be moved beyond 2m!
h thousand liter table. Inspection method
Install the zero axis on the pre-ejector pin frame, install a lower measuring head and a monthly decay strip on the mirror, move the longitudinal movable seat, and separate the measuring head and the special small axis. The two main points are connected in the horizontal plane, and the difference between the two subtractions is the difference in the vertical plane. After heating, the lower end of the meter and the two ends of the guard are in contact with each other in the vertical plane, and the difference between the two readings is changed. The test is the knitting benefit within the class surface. When the needle density and needle bar are at different positions, they should meet the requirements of this standard: 3.21 Predicted radial diagram follow-up inspection
3.2t. 1. Inspection tools
2. One special small shaft with a thimble hole and an outer collar needle: the technical requirements are the same as Article 3.20, F. The h twist joint is tested to make juice. The push should not stay in um.
3, 21.2 Inspection method
Install the special trolley on the needle frame, attach a durable gauge channel with a micrometer on the mirror, and use the measuring head of the micrometer In contact with one end of the special small shaft, the rotating item is inspected, and the error can be detected by the micrometer. 3. When the needle 22 is rotated together with the thimble support. Radial runout inspection. 3.22.1 Inspection tool
Same as Section 3.21.1
5.22: 2 inspection method
The special small shaft is installed on the needle. The above table of Ruishang has a special change frame for the micrometer. The measuring head for measuring the total is connected to the end of the special small shaft. Turn the thimble rod for inspection. The misalignment can be read from the micrometer (if the needle and The meter is also in two parts. The position of the meter in the jacking hole should be rotated 0 times for inspection, and the position of the meter should be used as the illumination value). ||3.23 Check the coincidence of the two needles in the original plane. Align the angles in the mirror at 90 (or 27), so that the distance between the two needles is 20m1m1 - Use a modified mirror to show the case. , adjust the instrument so that the image of a jacked-up 6 is aligned with the previous mark of the measurement target, and then read out the adjustment, then move closer to the base to complete the concentration of the other needle 6. Align the image with the 60 mark on one side of the dating sunglass and record the number again from the horizontal age wheel. The two readings are the coincidence error of the two items at that position, and then change the thimble. As soon as I heard about it, I sent it to the company for inspection
3. The deviation of the distance between the 24 original needle holder tax meter and the upper surface of the single tool pad was checked according to 324.1 inspection|| tt||Article 3.21. 1-
3.24, 2 Lightness Inspection Methods
Put the special small shaft on the quality needle holder, and install a point channel with an efficiency measurement on the mirror : The measuring knife is installed at the center position of the surface, and then a suitable size of five-dimensional measuring marks are placed on the pad surface, so that the measuring head is connected with the measuring head, and the lower setting is started.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.