JB/T 10006-1999 This standard is a revision of ZB J42 003-87 "Internal Micrometer". During the revision, only the editorial modification was made according to the relevant regulations, and the main technical content was not changed. This standard specifies the type and size, technical requirements, marking and packaging of internal micrometers. This standard is applicable to internal micrometers with a graduation value of 0.01mm, a micrometer screw pitch of 0.5mm, a range of 25mm, and a measuring range of up to 150mm. This standard was first issued in 1987. JB/T 10006-1999 Internal Micrometer JB/T10006-1999 Standard Download Decompression Password: www.bzxz.net

[CS25.060.20
Machinery Industry Standard of the People's Republic of China
JB/T10006-1999
Inside micrometer
Inside mierometer
Published on 1999-05-20
National Bureau of Machinery Industry
Implemented on 2000-01-01
JB/T106-I
This standard is revised on the basis of ZBJ4201-87 Inside micrometer: This standard is consistent with the technical requirements of ZBJ42003-87, only the relevant provisions have been re-edited. Appendix A of this standard is the appendix of the standard.
This standard replaces ZBJ42003B7 from the date of implementation. The standard is proposed and managed by the National Technical Committee for Standardization of Measuring Instruments. The responsible drafting units of this standard are: Senhai Tool Factory, Shanghai Shiju Tool Factory, Jiangxi Tool Factory, Chengdu Mechanic Tool Factory, Beijing Second Tool Factory. The main drafters of this standard are: Li Jinghua, Wang Rongbi, Li Weiguo, Jin Mingzuo, Luo Dizhuang, Gao Xiangjun. This standard was first issued in 198.
Machinery Industry Standard of the People's Republic of China
Inside micrometer
Inside micrometer
This standard specifies the type and size, technical requirements, marking and packaging of inside micrometers. JB/T10006--1999
B142003:87
This standard applies to inside micrometers with a graduation value of 0.mm, a micro screw diameter of 0.5mm, a stroke of 25mm, and a measurement range of up to 150mm. The following definitions are adopted in the standard.
2.1 Internal measurement - micrometer
It has a circular measuring surface, suitable for measuring the internal scale of the micrometer, 2.2 Indication error
The difference between the scale indication value and the actual decomposition distance between the two circular measuring disks: 3 Types and sizes
3.1 The types of measuring micrometers are shown in Figures 1, 2 and 3 (the figures are only for illustration and do not show the detailed structure). The measuring range is 5-10mm, 25-.50mm, 50-.75mm, 75--100mm, 100-125mm and 125-150mm. State Complete Pipe Request
National Machinery Industry Week 199 9-05-20 Application of dynamic quantity system Differential dynamic force measurement 2000-01-01 Standard: JB/T10006—1999 Measurement method of differential dynamic force measurement 3.2 The engraved numbers on the internal diameter of the differential gauge sleeve shall comply with the requirements of Table 1 unless otherwise specified below. Table 1
25-50,135-150
75-100
100--125
33 The internal measuring scale should have a measuring force concentration and a device for tightening the micrometer slow rod. 4 Technical requirements
4.1 The internal measuring scale should not have any external defects that affect its use. 34,
4.2 The movement of the micrometer support of the internal measuring scale should be semi-stable, and the image should be taken with a seven-card tape. The axial and radial dislocation of the movable measuring claws shall not exceed 0.01mm, and the inertia shall be greater than 0.07mm. 4.3 The locking device of the internal measuring micrometer shall be able to ensure that the measuring micrometer rod is firmly locked. When locked, the distance between the two measuring surfaces shall not be greater than 0.002mm. 4.4 The width of the scale lines on the fixed scale and the differential sleeve shall be 0.15-0.2cm, and the difference in scale line width shall not be greater than 0.02mm. 4.5 When the internal measuring micrometer is aligned with the zero position, the distance from the end face of the differential sleeve cone to the pressure line of the fixed sleeve shall not be greater than 0.05cm, and the distance shall not be greater than 0.10mm.
4.6 The distance from the vertical scale surface of the internal micrometer fixed sleeve to the continuous edge of the differential chain surface is not more than (.40mm, 4, the internal micrometer measuring surface is inlaid with carbide. If the measuring surface is made of steel, its hardness should not be less than: 766H (-62HRC
4.8 The surface roughness R value of the measuring disk of the internal micrometer is U.16p4.9 The radius of the measuring disk of the internal micrometer should be less than one-half of the inner micrometer surface.4.10 The measuring force when the internal micrometer centroid surface contacts the plane should not exceed the requirements of Table 2. Table 2||tt| |5.-30,25-50
50-75.75-100.100-125125-150
Change of measuring force
4.11 The error of the internal micrometer, the parallelism of the two arc measuring surfaces and the deformation of the measuring claws when subjected to 10 force should not exceed the requirements of Table 3,
Training range
75--100
100~125
125-150
Reading difference
Parallelism of the two kitchen tile measuring surfaces
The internal micrometer should be equipped with a zero adjustment tool and a calibration tool. The dimensional deviation of the calibration tool, the columnar tolerance or the parallelism tolerance of the two measuring surfaces (referring to the measurement of the calibration tool when it is a flat surface) is shown in Table 4.4.13 The surface roughness measured by the calibration tool should not be less than 76611V (62IIRC) 4.14 The surface modulus R value of the calibration tool measurement is 0.08mM. Standard size 100,125 JB/T10006—1999 5.1 The markings on the micrometer shall include: a) manufacturer’s name or registered trademark; b) product name; and normal measuring range. 5.2 The nominal scale of the micrometer shall be marked on its surface. 5.3 The packaging box of the micrometer shall include: a) manufacturer’s name or registered trademark; b) product name and normal measuring range.
Example Dudu public certificate
Two continents egg surface flatness tolerance
S.4 The inner measurement should be processed and packed before packaging, and the product should not be lost in transportation due to poor packaging. S.5 The internal measuring scale shall be verified to meet the requirements of this standard. A product certificate shall be attached. The product certificate shall have the standard number, product serial number and factory date of this standard.
JB/T10006—1999
Appendix A
【Notes on the Standard】
Testing method of internal measuring scale
This appendix is ​​about the testing method of internal measuring scale for factory inspection. AI indication error
Measure the inner dimensions of the internal measuring scale composed of the special ring gauge with the size listed in Table A, or the special gauge block of the scale with the size of the first grade (or 4 grades) 10 sets and the measuring accessories in turn. The difference between the scale indication value of the inner measuring scale and the distance between its two measuring surfaces is the indication error.
25-5n
75-100
100--125
125-150
Method: The size of the special ring is verified by the chemical comparison method with 4-grade blocks. The axial clearance of the A2 movable measuring claw is measured on the special ring gaugebzxz.net
1524, and the axial clearance of the movable claw is checked by hand. If there is any discrepancy, the axial clearance value is measured on the special tester. The radial clearance of the A3 movable measuring claw is also checked by hand. If there is any discrepancy, the radial clearance value of the movable measuring claw is measured on the special tester at 10mm away from the inner end face of the movable measuring claw. A4 Force measurement and force change
The force measurement and force change value measured by the micrometer is measured by the dynamometer 1. A5 The radius and the parallel connection of the two circular measuring surfaces are measured by the lever micrometer:
A6 The relative swing of the two measuring melons
The fixed measuring claws are installed on the special inspection fixture, so that the measuring head of the lever dial indicator is in contact with one side of the moving measuring disk (near the top end). When 2V force is applied to each side of the movable disk claw (near the top end), the difference between the two readings on the micrometer is the relative swing of the two measuring melons, s
A? Measuring the deformation of the claw when it is subjected to a force of 10N
J/T699y
Install the movable measuring claw inside the micrometer on a special inspection fixture (make the fixed measuring claw lower than the movable measuring claw), then make the measuring head of the lever micrometer contact the measuring disk surface of the fixed measuring claw and read the readings. When a force of 10N is applied in a direction parallel to the axis of the micrometer screw and at both ends, count backwards on the lever micrometer. The difference between the two numbers is the deformation degree when the claw is not subjected to a force of [G]. Measure on the measuring side (1mm away from the fort).
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.