T/ZZAS 028-2023 Active Group standards

T/ZZAS 028-2023 parallel-drill milling center

Publish Date: 2023-09-01 Implement Date: 2023-09-10 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZZAS 028-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: CNC machine tools

Publish Date: 2023-09-01

Implement Date: 2023-09-10

Scope

Main technical content: 4. General requirements 4.1 This standard is a specific supplement to GB/T 9061–2006, GB/T 25373–2010, GB/T 25376–2010, and JB/T 8801–2017. When inspecting machine tools according to this standard, the remaining relevant inspection items not specified in this document in the aforementioned standards should also be inspected. 4.2 The order of inspection items in this standard does not indicate the actual inspection sequence. Inspections can be conducted according to the machine tool assembly process. 4.3 All linear dimensions, deviations, and corresponding tolerances in this standard are expressed in millimeters (mm); angle dimensions are expressed in degrees (°), and angle deviations and corresponding tolerances are represented by ratios. When necessary, they can be expressed in micro-radians (μrad) or arcseconds (″). The equivalent relationship of expressions is shown in Equation (1): 0.010/1000 = 10×10-6 = 10μrad ≈ 2(1) 4.4 The geometric accuracy of this standard can be verified using the same indicators and other inspection tools with at least the same accuracy. The indicators should have a resolution of 0.001mm. 4.5 When the actual measured length differs from the length specified in this standard, the tolerance shall be converted according to the provisions of GB/T 17421.1–1998, Section 2.3.1.1, based on the measurable length. If the conversion result is less than 0.005mm, it shall still be calculated as 0.005mm.