JB/T 7421.2-2006
ActiveDrilling and milling machines-Part 2: Specifications
铣钻床 第2部分: 技术条件
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 技术要求 → 4 检验与验收 → 5 包装 → 6 制造厂的保证 Foreword → 1 Scope → 2 Normative References → 3 Technical Requirements → 4 Inspection and Acceptance → 5 Packaging → 6 Manufacturer's Guarantee
Scope
1 Scope This part specifies the technical requirements, inspection and acceptance, packaging, and manufacturer's guarantee for drilling and milling machines. This part applies to drilling and milling machines with a maximum drilling diameter not greater than 50 mm and a worktable width not greater than 400 mm.
1 范围 本部分规定了铣钻床的技术要求、检验与验收、包装及制造厂的保证。 本部分适用于最大钻孔直径不大于50mm、工作台面宽度不大于400mm的铣钻床。
Keywords
Application Summary AI generated
Manufacturers and inspection agencies of drilling and milling machines use this standard to ensure product technical performance and quality meet requirements. It is used to regulate the design, manufacturing, inspection, and acceptance processes of the machines, ensuring safety and reliability. This standard is important for improving product quality and customer satisfaction in the industry.
铣钻床的制造商和检验机构使用本标准来确保产品的技术性能和质量符合要求。它用于规范机床的设计、制造、检验和验收流程，保证设备的安全性和可靠性。该标准对提升行业产品质量和用户满意度具有重要意义。
AI Summary AI generated
This standard JB/T 7421.2-2006 is the specifications part for drilling and milling machines, replacing the 1994 version. It specifies technical requirements, inspection and acceptance, packaging, and manufacturer's guarantee. Key changes include expanded scope (max drilling diameter to 50mm, worktable width to 400mm), noise limit set to 85dB(A), stricter bearing temperature rise requirements, and added chapters on packaging and manufacturer's guarantee. The standard is under the jurisdiction of the National Metal-Cutting Machine Tool Standardization Technical Committee, with Hangzhou West Lake Bench Drilling Machine Co., Ltd. as the main drafter.
本标准JB/T 7421.2-2006是铣钻床的技术条件部分，代替了1994年版本。它规定了铣钻床的技术要求、检验与验收、包装及制造厂保证等内容。主要变化包括适用范围扩大（最大钻孔直径增至50mm，工作台面宽度增至400mm），噪声限值改为85dB(A)，轴承温升要求更严格，并增加了包装和制造厂保证章节。标准由全国金属切削机床标准化技术委员会归口，杭州西湖台钻有限公司主要起草。
Key Sentences extracted from text
本部分代替 JB/T 7421.2-1994《铣钻床 技术条件》。
本部分适用于最大钻孔直径不大于50mm、工作台面宽度不大于400mm的铣钻床。
整机噪声声压级改为85dB(A)。
机床空运转试验中轴承温度改为不超过70°C,温升不超过40°C。
取消具体的附件和工具，仅作'机床应备有保证基本性能的附件和工具'要求。
This part replaces JB/T 7421.2-1994 'Drilling and milling machines—Technical conditions'.
This part applies to drilling and milling machines with a maximum drilling diameter not greater than 50 mm and a worktable width not greater than 400 mm.
The overall noise sound pressure level is changed to 85 dB(A).
In the no-load test of the machine tool, the bearing temperature shall not exceed 70°C, and the temperature rise shall not exceed 40°C.
Specific accessories and tools are cancelled, only requiring that 'the machine tool shall be equipped with accessories and tools to ensure basic performance'.
Standard Timeline
Changes from replaced version:
- 适用范围最大钻孔直径增至50mm，工作台面宽度增至400mm
- 章条结构进行了调整，原第3-6章合并为第3章，原第7-9章合并为第4章
- 增加了第5章'包装'
- 增加了第6章'制造厂的保证'
- 取消具体的附件和工具，仅作基本要求
- 整机噪声声压级改为85dB(A)
- 手轮、手柄操纵力按最大钻孔直径进行分类
- 机床空运转试验中轴承温度改为不超过70°C，温升不超过40°C
- 增加机床安全卫生检查条款
- Maximum drilling diameter increased to 50mm, worktable width increased to 400mm
- Chapter structure adjusted: original chapters 3-6 merged into chapter 3, original chapters 7-9 merged into chapter 4
- Added chapter 5 'Packaging'
- Added chapter 6 'Manufacturer's Guarantee'
- Specific accessories and tools cancelled, only basic requirements retained
- Overall noise sound pressure level changed to 85dB(A)
- Handwheel and handle operating force classified by maximum drilling diameter
- In no-load test, bearing temperature changed to not exceed 70°C, temperature rise not exceed 40°C
- Added machine tool safety and hygiene inspection clauses