JB/T 8774.8-1998 JB/T 8774.8-1998 Machine tool electrical system accessories Rubber, PVC cable plastic pipe joints JB/T8774.8-1998 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/F8774.1--8774.15—1998
Machine Tool Electrical System Accessories
1998-07-17 Issued
State Machinery Industry Bureau
1998-12-01 Implementation
JIR/T 8774. 81998
This standard is formulated on the basis of summarizing many years of experience in producing machine tool electrical system accessories such as slow-changing heads and quick-changing heads with oxygen-free cables. Products produced according to this standard shall comply with (22.1 [61. Machinery industry electrical equipment part 1 Qitong H technical killing parts
Education and relevant provisions,
This international standard will only be proposed for the national Jinmingfang cutting machine standardization technical egg, this standard is the Ministry of Machinery Industry Beijing Rock Machine Research Institute March 3: This standard is issued by: Ministry of Machinery Industry Beijing Machinery Research Institute, Beijing No. 1 Machine Tool 1 Beijing No. 2 Machine Tool Limited! bzxZ.net
1 Scope
Machinery Industry Standard of the People's Republic of China
Machine tool electrical system accessories
Rubber, polyvinyl chloride cable climbing pipe joint J8/T 8774.81998
The six standards specify the list of electrical accessories for machine tools, technical requirements, test and inspection, etc. The standard is applicable to the three systems of machine tools, such as the fixed electric wires, polyurethane outlet connectors, and other mechanical outlet systems, and can also be used as a reference.
No. 2 Standard
The second standard contains new provisions, which will become international standard texts when cited in the standard. The versions shown are all valid. All standard parts will be revised soon. All parties using this standard should pay attention to the latest version of the following standards.CB17-81
CB 730Y-87
GB12673—90
HG/T2579-94
3 Structure
Through thread tolerances and fits (diameter 135" non-threaded sealed pipe threads
rain please one butylene one styrene 2 ene AS? period
() type rubber tree material Part 1: for the current through-age pressure system dance head station god example see 1.
Main dimensions
The main dimensions of the connection are shown in Table 2 and Table 1: China Machinery Industry Bureau 199817 approved Zhejiang
1913-implemented
Transmission head short test specification
M2t×1. 5
M2t×1. 5
M3J×2
M33×2
M51×2
5 embedding
JB/T8774.8
electric nominal outer diameter
12--16
3C ·-23
whether the connection is confirmed by the name, the change entity bad effect specification 4 and the standard guide to indicate the head type A kidney connection beauty specification = M13X]. 5 is marked as, smart connector M12×1.5JB/T3774.8-JS9 lifting head end specification = G type A pipe frequency connector mark: pipe connector core B/8774.8158
fall head body strength general specification M12 ×1.5 B-type screen transfer specification: pipe dial 3M12×1.5JB/T84.1
Joint thread effect specification: (the mark of the die head is: pipe head/T5774.8--1398
6 Technical requirements
6.1 The material of the head should meet the requirements of B125/2: 62 and the material strength should meet the requirements of H/T257. 6.3 The joint is also considered as a pass-through test, and the room meets the requirements of B19, the grade of the product, the explosion rate is the same as the grade (157HC7, the screw effect tolerance is the same as the grade A, the heart. 4 The line port of the control head should have sufficient wind or example angle, 5 The internal surface of the light should not have any smart model and the brick chain of the matching platform. Point damage and pregnancy effect are flat and lack of bacteria. 6.6 Six frequency control is tight, that is, JD/E 74. N
The force method of the pipe joint should not be easy to eliminate the head. 6.7
7 Test and inspection
7.1 Inspection materials, dimensions (sampling), processing quality, etc., should comply with the provisions of Section 4 and Chapter 6: 7.2 Pulling test
Install the electric lock on the pipe joint F., and pull along the line for 1och, keep it for 1min, and there should be no friction between the electric relay and the joint.
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