JB/T 9151.6-1999 JB/T 9151.6-1999 Fastener test methods Dimensions and geometric accuracy Rivets JB/T9151.6-1999 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 2000-01-01www.bzxz.net
Mechanical Industry Standard of the People's Republic of China
Method of verification for fastenes-Size and geometry Rivets
JB/T9151.6—[999
This standard specifies the test methods for the dimensions and geometric accuracy of products, and should be used in conjunction with the corresponding product specifications and basic standards. This standard provides two items that require the above test methods, and does not specify the arbitration method. If necessary, it should be agreed upon by both the supply and demand parties. This standard applies to items specified by national standards and industry standards, and non-standard parts are also used for reference. Note: The size codes used in this standard, except for those with a notice, are consistent with product specifications and basic standards. 2 References
The provisions contained in the following standards constitute the auxiliary text of this standard through the use of this standard. When this standard is published, the versions shown are valid. All standards will be revised. The parties using this standard should consider the possibility of using the latest versions of the following standards. 121426
GB/1216—1985
GB/T121919BS
GB/T 1957..--1981
GB/T6315—1996
JB/T8788-—1998
Vernier caliperVernier caliper
Outer diameter micrometer
Digital indicator
Smooth limit gauge
Vernier Hall angle gauge
3 Dimension test items, methods and fixtures
The test items, methods and fixtures of the ruler shall be as specified in Table 1. Table!
Test items and verification methods
Pole point or,
Use the lower point to measure
Needle diameter 4,
Use 0.12mm caliper to measure
Beijing Machinery Industry Week 1999-06-28 approved
CALT1216 specified
GHT1214.2 specified
Sub-test department: When the rod length is [
20mm, at 0.5 inch from the lamp holder] (less than 2mm): When the rod length is 1>20mm, at 0.5d and 0.5F from the lamp holder
2000-01-01 Actual filter
JB/T 9151.6—1999
Table (】
Measurement items Method
Needle height★point
Measure with 01.02mm caliper
Method 2;
Measure with special pass, stop gauge
Method 3:
(Only for melting nail head height)
Measure with special outer diameter gauge
Nail length!
Measure with 0.0mm caliper
Hole diameter 4
Method 1
Measure with 0.02mm caliper
Method 2:
And special pass, The stopper gauge is used to measure the hole depth. Force method: Use a 0.02mm caliper to measure the depth. Method 2: Use a special pass to measure the height. 4 Geometric accuracy test items, methods and test items with geometric accuracy, select and apply them according to Table 2. Note: The influence of shape error is ignored in the test method of coaxiality sag seat. Method 1: GB/T214.2 stipulates that the square flow 2 The caliper gauge should be folded according to the provisions of 1957. Method 3: GBT 1216 The following provisions of the sub-division scale reform GB/T 1214.2 The following provisions of the method t GB/T12142 The following provisions of the method 2: The detailed gauge shall comply with the provisions of GBIT 1957! : GH/T1214.2 The following provisions of the method 2: The detailed gauge shall comply with the provisions of GB 1957 and also meet the measurement of JB/T 9151.6—1999
Test items and test methods
Test of the axis of the supporting surface rod
Method 1:
Put the component into a V-shaped frame and make sure it is not pulled out (there should be no movement). Use a dial indicator to measure and read the maximum force shown on the indicator. Method 2:
Use a special angle caliper and a feeler gauge to measure the perpendicularity of the end surface of the nail rod to the axis of the cup. Use a universal angle ruler to measure the coaxiality of the door head to the axis of the nail rod
Method!
Put the whole piece on the frame and rotate it (no pulling or movement is allowed), and measure it with a dial indicator. The maximum value shown by the pointer is the measurement method 2:
Use a 0.02mm caliper to first measure the minimum crown height value of each line of the nail rod on the outer circle of the lamp holder, and then measure the surface distance of the opposite side. The difference between the two is the axial length of the fixed value hole () relative to the axis of the nail rod
Use a 0.02mm caliper to measure the minimum wall thickness value between the inner circle and the outer circle, and then measure the wall thickness value of the opposite side. The difference between the two is the measurement method! : GH1219 standard vernier and special V-shaped frame Method 2: JRITR788 standard room ruler and special angle card R/T6315 standard method! : CR/T1219 standard vernier without special V-shaped frame Method 2: GB/T 12142 standard B standard 1214.2 standard vernier measuring the maximum diameter should be 0.8 value of the meeting point diameter,
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