JB/T 9151.7-1999 JB/T 9151.7-1999 Fastener test methods Dimensions and geometric accuracy Retaining rings JB/T9151.7-1999 Standard download decompression password: www.bzxz.net

1CS 2E.060.01
Mechanical Industry Standard of the People's Republic of China
.[B/T 9151.1~9151.7-1999
Method of verification for fastenesSizeandgeometry
Published on 1999-06-28
State Machinery Industry Bureau
Implemented on 2000-01-01
Mechanical Industry Standard of the People's Republic of China
Method of verification for fastenesSizeandgeometryRings
JB/T 9151.7—2999
BJ13002.7—90
This standard specifies the test methods for the size, geometry and accuracy of retaining nets, and should be used in conjunction with the corresponding product standards and base standards: This standard provides two or more test methods for the items, and specifies the method. If necessary, the supplier and the supplier should reach an agreement. This standard applies to the specifications specified in the national standards and industry standards. Non-standard parts can be used for reference. Note: The size codes used in this standard are consistent with the product standards and rate standards except for those specified. 2 References
The provisions contained in the following standards constitute the provisions of this standard by being referenced in this standard. When this standard is revised, the versions shown are all effective. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 959.1—1986
GB/T959.2—1986
GE/T1214.2-.1996wwW.bzxz.Net
GB/T12161985
GB/T1219—1985
GR/T3934—1983
Technical conditions for scanning rings Elastic retaining rings
Technical conditions for scanning drawings Wire retaining rings
Vernier calipers Vernier calipers
Outer diameter and minute ruler
Digital indicator
Ordinary corrugated plate gauge
3 Dimension test items, methods and inspection tools
Dimension test items, methods and inspection tools shall be as specified in Table 1. Table 1
Inner spot d
Method! ：
Test function change test method
Use U12mm ruler to measure
Method 2:
For the locking shaft ring, use a light band to measure the outer diameter D of the stop gauge
0.02mm caliper
Figure National Machinery Industry Bureau 1999-06-28 approved 42
Method 2:
Plug gauge should comply with the specifications of GB/T1957
G1214.2 caliper
2000-01-01 actual compensation
Original S joint H
JB/T 9151.7—1999
Table 1 (end)
Test group Test method
Initially measure the opening with a 0.02 mm caliper
Measure with a 0.02 mm caliper
Measure with a special gauge
Measure with a percentage gauge (needle probe)
Measure the hole with a 0.02 mm caliper or indirectly measure the middle and major diameters of the implosion effect
Measure the through end with your hand The thread production specification shall be screwed into the internal thread diameter of the lower part, and should be able to pass the single medium light
of the internal explosion effect. The stop end shall be screwed into the internal thread of the workpiece by hand at a rate of one thread pitch (calculated from the expansion specification). The small light
of the internal explosion effect shall be screwed into the internal thread of the upper part by hand, and should pass smoothly. The distance between the stop end and the internal thread of the T-part shall not be greater than 0.35D. The test items, methods and specifications of the geometric precision test items, methods and inspection tools shall be as specified in Table 2. Table
Test items and test methods
Parallelism of shoulder and end faces
G gauge is H scale
B:12142 caliper
GB/T1214.2 caliper
Width gauge should conform to GB/T1957
OB/T1219 caliper
GB/1214.2 caliper
GB/T3934 frequency
Comparison
(GB/T3934 frequency
This rule
GF/T 3934-1983 Appendix A
determined wine, stop production
GR/T1219 specified percentage
Place the stopper on any inspection platform and measure it with a dial indicator. The maximum value shown by the in-and-out pin is the measured value
Elastic stopper gauge
Method 1:
Send the drawing to the gauge and it should pass smoothly. Method 2:
Place the stopper drawing on the inspection platform and use a 0.mm caliper to measure the height between the highest point of the stopper and the plane of the platform
Table and inspection work
Option 1:
CB/T959.1 and GBT 959.2
Fangse 2:
GR/T1214.2
ruler, inspection flat piece
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