行业组件数据 · 2026

床身铸件

Bed casting is the foundational structural component of machine tools, providing rigidity and stability for precision machining operations.

技术定义与适配语境
典型 床身铸件 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

A bed casting is a large, rigid structural component typically made through casting processes that forms the base frame of machine tools such as lathes, milling machines, and grinders. It serves as the primary mounting surface for all other machine components including slides, spindles, and worktables, ensuring dimensional stability, vibration damping, and thermal consistency during machining operations. The casting's geometry and material properties are critical for maintaining alignment tolerances and supporting heavy loads while minimizing deflection.

组件规格

定义
A bed casting is a large, rigid structural component typically made through casting processes that forms the base frame of machine tools such as lathes, milling machines, and grinders. It serves as the primary mounting surface for all other machine components including slides, spindles, and worktables, ensuring dimensional stability, vibration damping, and thermal consistency during machining operations. The casting's geometry and material properties are critical for maintaining alignment tolerances and supporting heavy loads while minimizing deflection.
工作原理
The bed casting functions as the foundational structural element that provides geometric stability and rigidity to the entire machine tool system. It absorbs and dissipates cutting forces, vibrations, and thermal expansions through its massive construction and carefully designed ribbing patterns. The casting's precision-machined surfaces serve as reference planes for mounting linear guides, ball screws, and other critical components, ensuring accurate relative positioning between moving parts throughout the machine's operational life.
材料
Gray cast iron (GG20-GG30)ductile iron (GGG40-GGG70)or high-strength cast iron alloys with graphite flake structures for optimal vibration damping. Advanced applications may use polymer concrete composites or welded steel structures with internal damping materials.
Width
400-2000 mm
Height
300-1500 mm
Length
1000-10000 mm
Weight
500-15000 kg
Natural Frequency
50-200 Hz
Surface Roughness
Ra 1.6-3.2 μm
Thermal Stability
≤0.01 mm/°C
Flatness Tolerance
0.01-0.05 mm/m
Straightness Tolerance
0.005-0.02 mm/m
标准
ISO 10791ISO 230DIN 8602DIN 8606

行业分类与别名

床身铸件 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Improper heat treatment or residual stresses->Dimensional instability and warping over time->Implement proper stress relief annealing cycles and controlled cooling processes
Inadequate rib design or wall thickness->Excessive deflection under load leading to machining errors->Optimize casting design using FEA analysis and follow established design guidelines
Poor foundry practices->Internal defects reducing structural integrity->Implement rigorous quality control including NDT testing and material certification

工业生态与工程逻辑

0
Thermal deformation affecting accuracy
1
Casting defects (porosity, inclusions)
2
Stress-induced cracking over time
3
Wear on slideway surfaces
4
Corrosion in humid environments

合规与检测

tolerance
Geometric tolerances per ISO 1101, dimensional tolerances per ISO 2768-mK
test method
Coordinate measuring machine (CMM) inspection, laser interferometry for straightness, surface plate testing for flatness, modal analysis for vibration characteristics

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

Why is cast iron preferred for bed castings?

Cast iron provides excellent vibration damping properties due to its graphite microstructure, good machinability, thermal stability, and cost-effectiveness for large structural components.

How are bed castings manufactured?

Bed castings are typically produced through sand casting processes using patterns, followed by stress relief annealing, precision machining of mounting surfaces, and sometimes scraping or grinding for ultra-precision applications.

What maintenance do bed castings require?

Regular cleaning to prevent chip accumulation, periodic inspection for cracks or wear on slideways, protection from corrosion, and ensuring proper lubrication of mating surfaces.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 床身铸件

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URN:CNFX:ME:UNIT:BED_CASTING