This standard refers to the international standard ISO 6155/2-1986 "Turret and horizontal single-spindle automatic lathes - Precision testing - Part 2: Machining bars up to 25 mm in diameter and chucks up to 160 mm in diameter". JB/T 8327-1996 Instrument turret lathe precision JB/T8327-1996 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T 8327-96
Instrument Turret Lathe
1996-4-11 Issued by:
Ministry of Machinery Industry of the People's Republic of China
1990-10-01
Mechanical Industry Standard of the People's Republic of China
Precision of Instrument Turret Lathe
18/TB32796
This standard adopts the international standard 1S06155/2-1556 for single-spindle automatic lathes. Precision inspection-Part 2: Material diameter up to 2% mm and chuck diameter up to 160 mm. 1 Subject content and applicable scope
This standard specifies the requirements for the geometric structure and working conditions of instrument turret lathes and the inspection methods. This standard is applicable to ordinary instrument turret lathes with material diameter up to 25 mm. 2 Use standard
JE267 General rules for inspection of metallurgy and scratching machines 3 General requirements
3.1 Sign B2670 Article 3.1 Adjust the installation level of the machine tool, place a special bridge plate for metallurgy on the bed navigation, and place a spirit level on it. The level should only be within the range of D,M/1000 in both the longitudinal and lateral directions.3.1 During inspection, the actual inspection times can be arranged according to the inspection tools and the convenience of inspection, and the requirements of the heat inspection items. 3.3 When inspecting the working accuracy, the inspection of the test piece should be carried out after the vehicle is in operation. 3.4 When the actual length is different from the length specified in this standard, the tolerance should be converted according to the measurable length in accordance with the provisions of Article 2.3.1.1 of JH2670. When the conversion result is less than 0.005mm, the 0.005mm tolerance is still used. Approved by the Ministry of Industry on 1996-84-11
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