Valid

GB/T 45863-2025Test conditions for numerically controlled vertical surface broaching machines - Testing of the accuracy (English PDF)

数控立式外拉床检验条件精度检验

Preview PDF

This is a limited preview

Buy now to download the full PDF (77 pages)

Need quotation for your management?

Get a formal quotation for GB/T 45863-2025 in 30 minutes.

Issued by

State Administration for Market Regulation, Standardization Administration of China

Level / Type

National · Recommended

Issue date

August 1, 2025

Implementation date

February 1, 2026

Scope

GB/T 45863-2025 is the English-translated version of 数控立式外拉床检验条件精度检验.

GB/T 45863-2025 is the Chinese national standard for checking the accuracy of ordinary-precision CNC vertical surface broaching machines, the machines that cut the grooves and slots in turbine discs.

It names the components and axes, sets the general rules on units, reference standards, test order, tolerances, instruments and software compensation, then gives the checks and their tolerances: straightness of the linear motions, perpendicularity and parallelism between linear and rotary motions, the rotary table, the tool holder, positioning accuracy and repeatability of the CNC axes to GB/T 17421.2-2023, and working accuracy.

It leaves out running checks such as vibration, noise and creep, and parameter checks such as speed and feed rate. Builders and buyers use it at installation and acceptance.

Identical to ISO 19744:2020, it was issued on 1 August 2025 and has applied since 1 February 2026.

Found what you need?

Document preview — GB/T 45863-2025

National Standard of the People's Republic of China

ICS: 25.080.30
Classification: J 57

Issued by: State Administration for Market Regulation, Standardization Administration of China

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Component and axis naming
5 General Requirements
5.1 Units of measurement
5.2 Reference Standard
5.3 Inspection sequence
5.4 Inspection Item
5.5 Tolerances and minimum tolerances
5.6 Inspection Tools
5.7 Diagram
5.8 Software Compensation
5.9 Unverified axis
6 Geometric accuracy inspection
6.1 Straightness Error of Linear Motion
6.2 Perpendicularity/Parallelism Errors Between Linear/Rotary Motions
6.3 Rotary table
6.4 Tool holder
7 Positioning accuracy and repeatability test
7.1 Positioning of CNC linear axes
7.2 Positioning of CNC rotary axes
8 Working accuracy inspection
Appendix A (Informative) Terminology in Other Languages
Appendix B (Informative) Recommended Tests for External Surface Broaching
Reference

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is equivalent to ISO 19744:2020 "Test conditions for CNC external broaching machines - Accuracy test - Vertical external broaching machines".

The following minimal editorial changes have been made to this document.

--- To coordinate with the existing standard, the name of the standard is changed to "Test Conditions and Accuracy Test of CNC Vertical External Broaching Machines".

1 Scope

This document specifies the naming of components and axes, geometric accuracy inspection, CNC linear axis and rotary axis of ordinary precision CNC vertical external broaching machine.

Positioning accuracy and repeatability inspection, working accuracy inspection and corresponding tolerance requirements, etc.

This document describes the concepts, configurations, and features of CNC vertical broaching machines used for machining turbine disc grooves and recesses, and provides relevant terminology. and the name of the axis.

This document is applicable to the accuracy inspection of CNC vertical external broaching machines for machining turbine disc grooves and recesses, and is not applicable to the operation and maintenance of CNC vertical external broaching machines.

Rotation inspection (such as vibration, abnormal noise, creep of moving parts, etc.) and parameter inspection (such as speed, feed rate, etc.).

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document.

GB/T 17421.1-2023 General principles for inspection of machine tools Part 1: Geometric accuracy of machine tools under no-load or quasi-static conditions (ISO 230-1:2012, IDT)

GB/T 17421.2-2023 General rules for inspection of machine tools Part 2: Determination of positioning accuracy and repeatability of CNC axes (ISO 230-2:2014, IDT)

Note: GB/T 17421.7-2016 General rules for inspection of machine tools Part 7: Geometric accuracy of rotary axes (ISO 230-7:2006, IDT)

3 Terms and Definitions

The terms and definitions defined in GB/T 17421.1-2023, GB/T 17421.2-2023, ISO 230-7:2015 and the following apply This document.

The URLs for terminology databases used for standardization maintained by ISO and IEC are as follows. […]

3.1

The process of removing material by linear cutting by pushing or pulling a broach (3.2) across an outer surface.

NOTE The principal cutting motion is the relative translation of the broach with respect to the non-rotating workpiece, where the cutting forces are generated by the motion of the broach or the workpiece.

3.2 Broach

A cutting tool having multiple transverse cutting edges, each of increasing size.

3.3 Broaching machine

A machine tool for broaching.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 77 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

GB/T 42628-2023Machine tools safety - Sawing machines for cold metal

How to Download GB/T 45863-2025

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.