GB/T 33639-2025 English PDF - CNC Hydraulic Punching & Drilling Machine

Standard Catalog

The standard consists of the following main sections:

• Foreword

• Introduction

• 1 Scope

• 2 Normative References

• 3 Terms and Definitions

• 4 Technical Requirements

• 4.1 General Requirements

• 4.2 Appearance

• 4.3 Castings, Forgings and Weldments

• 4.4 Part Machining

• 4.5 Electrical System

• 4.6 Numerical Control (NC) System

• 4.7 Hydraulic, Pneumatic, Cooling and Lubrication Systems

• 4.8 Assembly

• 4.9 Noise

• 4.10 Safety Protection

• 4.11 No-Load and Load Operation Requirements

• 5 Accuracy

• 5.1 General Requirements

• 5.2 Geometric Accuracy Inspection

• 5.3 Positioning Accuracy and Repeatability Inspection of NC Axes

• 5.4 Working Accuracy Inspection

• 6 Test Methods

• 6.1 General Requirements

• 6.2 Appearance Inspection

• 6.3 Inspection of Castings, Forgings and Weldments

• 6.4 Part Machining Inspection

• 6.5 Electrical System Inspection

• 6.6 NC System Inspection

• 6.7 Hydraulic System Inspection

• 6.8 Pneumatic System Inspection

• 6.9 Lubrication System Inspection

• 6.10 Cleanliness Inspection

• 6.11 Assembly Inspection

• 6.12 Noise Inspection

• 6.13 Safety and Protection Inspection

• 6.14 Accuracy Inspection

• 6.15 No-Load Operation Test

• 6.16 Load Operation Test

• 7 Inspection Rules

• 7.1 Inspection Classification

• 7.2 Factory Inspection

• 7.3 Type Inspection