GB/T 5289.2-2021Test conditions for testing the accuracy of boring and milling machines with horizontal spindle - Part 2: Machines with movable column and fixed table (English PDF)
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
December 31, 2021
Implementation date
July 1, 2022
Scope
GB/T 5289.2-2021 (Test conditions for testing the accuracy of boring and milling machines with horizontal spindle - Part 2: Machines with movable column and fixed table) is available as an English-translated PDF.
GB/T 5289.2-2021 is the Chinese standard "Test conditions for testing the accuracy of boring and milling machines with horizontal spindle - Part 2: Machines with movable column and fixed table".
Its scope clause reads: This document specifies the geometric accuracy, numerical control positioning accuracy and repeatability of horizontal milling and boring machines with a column moving along the X axis and a fixed table Accuracy, inspection methods for working accuracy and corresponding tolerances.
This document applies to general purpose, ordinary precision, horizontal milling and boring machines (hereinafter referred to as machine tools) with a moving column and a fixed table.
This document only deals with the inspection of machine tool accuracy. It is not suitable for running inspection of machine tools (e.g. vibration, abnormal noise, creep of moving components line), nor does it apply to the inspection of machine tool characteristics (eg speed, feed), which are usually carried out before the accuracy inspection. Its clauses include terms and definitions.
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Document preview — GB/T 5289.2-2021
National Standard of the People's Republic of China
- Classification
- J 54
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Preface
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Definition of Motion Axis
- 5 Special parts
- 5.1 Headstock
- 5.2 Workbench
- 5.3 Spindle head
- 5.4 Flat disc
- 6 General Requirements
- 6.1 Units of measurement
- 6.2 Implementing Standard
- 6.3 Inspection sequence
- 6.4 Inspection item
- 6.5 Inspection tools
- 6.6 Software compensation
- 6.7 Working Accuracy Inspection
- 6.8 Minimum tolerance
- 7 Geometric accuracy test
- 7.1 Straightness and angular deviation of linear axes
- 7.2 Perpendicularity and parallelism between linear axes
- 7.3 Separate fixed table
- 7.4 Boring spindle
- 7.5 Milling axis
- 7.6 Movable rotary table
- 7.7 Indexing or rotary tables
- 8 CNC positioning accuracy and repeated positioning accuracy
- 9 Working Accuracy Inspection
- Appendix A (informative) Technical differences between this document and ISO 3070-2.2016 and their reasons
- Appendix B (Informative) Geometric Accuracy of Axis of Rotation
- Appendix C (normative) Inspection of horizontal discs
- References
1 Scope
This document specifies the geometric accuracy, numerical control positioning accuracy and repeatability of horizontal milling and boring machines with a column moving along the X axis and a fixed table
Accuracy, inspection methods for working accuracy and corresponding tolerances.
This document applies to general purpose, ordinary precision, horizontal milling and boring machines (hereinafter referred to as machine tools) with a moving column and a fixed table.
This document only deals with the inspection of machine tool accuracy. It is not suitable for running inspection of machine tools (e.g. vibration, abnormal noise, creep of moving components line), nor does it apply to the inspection of machine tool characteristics (eg speed, feed), which are usually carried out before the accuracy inspection.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.
GB/T 1182-2018 Product Geometric Specifications (GPS) Geometric Tolerance Shape, Orientation, Position and Runout Tolerance Marking (ISO 1101.2017, MOD)
ISO 230-1.2012 General rules for the inspection of machine tools - Part 1.Geometric accuracy of machine tools under unloaded or finishing conditions (Testcode conditions)
ISO 230-2.2014 General rules for the inspection of machine tools - Part 2.Determination of positioning accuracy and repeatability of CNC axes (Testcode controledaxes)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 boringboringoperation
Keep the workpiece from rotating, generate cutting energy through the rotation of the single-edged cutting tool, complete the main cutting process, and form different sizes and geometries
Machining operations for shaped holes.
Note 1.When boring, use the boring bar to install the boring head, and adjust the boring edge to a certain position according to the axis of the boring spindle, so that the cylindrical hole,
The diameter of conical, blind or through holes is machined to the required size.
Note 2.If the coaxial hole is located on the opposite side of the same workpiece, it can be processed by moving the boring shaft (if the hole processing of the entire workpiece can be completed), or it can be processed by moving the boring shaft.
Boring holes on the opposite side of the workpiece by rotating the table 180° (reverse boring).
3.2 milling operation
Keep the workpiece from rotating, generate cutting energy through the rotation of the tool with multiple cutting edges, complete the main cutting process, and form various geometric shapes.
GB/T 38193 | GB/T 4346 | JB/T 8490 | GB/T 4019 | GB/T 3933.1 | GB/T 5289.1 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 111 pages — is available in the English PDF.
Referenced standards
Normative references
ISO 1101.2017 · ISO 230
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Related Standards
GB/T 1182-2018 — Geometrical product specifications (GPS) -- Geometrical tolerancing -- Tolerances of form, orientation, location and run-out
GB/T 5289.1-2008 — Machine tools -- Test conditions for testing the accuracy of boring and milling machines with horizontal spindle -- Part 1: Machines with fixed column and movable table
GB/T 7251.4-2026 — Low-voltage switchgear and controlgear assemblies - Part 4: Particular requirements for assemblies for construction sites (ACS)
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