From the date of entry into force of this standard, JB/GQ 1056-85 "Precision of Piston Lathes" shall be invalidated. This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of piston lathes. This standard is applicable to precision machining piston lathes with piston machining diameters of 50 to 150 mm. JB/T 8487-1996 Precision inspection of piston lathes JB/T8487-1996 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T8487-96
Piston Lathe
1996-11-0 Release
Precision Inspection
1997-01-01 Implementation
Ministry of Machinery Industry of the People's Republic of China
IB/T8487-96
This standard is based on the effective standard E/Q1C55-85, and is proposed by the National Metallurgical Machinery Standard of the People's Republic of China. This standard is attributed to Shenyang Lathe Research Institute, and the drafting unit of this standard is: Liuji Lathe Research Institute. Scope
Mechanical Industry Standard of the People's Republic of China
Piston Lathe Precision Inspection
This standard specifies the requirements for the accuracy and working accuracy of the lathe and the inspection method. This standard applies to fine machining lathes with a live plug and straightness of 0~1Gmm. 2. Reference standard
JR/T848796
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is issued, the original versions are valid. All standards are revised publicly. Parties using this standard should discuss the possibility of using non-latest versions of the following standards. 2G70 Precision Inspection Rules for Warm Cutting Machine Tools 3-Design Requirements
3.1 Refer to 3.1 in JI2670~82. The horizontal level should be adjusted. The horizontal level should be within the range of 0.06/10. 3.2 The inspection items listed in this standard are not in the order of inspection items. It does not mean that the inspection sequence is changed. Generally, the inspection can be carried out according to the installation inspection tools and the inspection sequence.
3.3 When the actual measured length is different from the length specified in this standard, the tolerance should be calculated according to the requirements of 2.3.1.1 in B267C52. When the calculated result is less than 0.05mm, it should still be calculated as 0.06mm. Approved by the Ministry of Anti-corrosion Machinery Industry with a 10% discount Www.bzxZ.net
1997-01-01 Implementation
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