行业组件数据 · 2026

测针杆

Precision shaft connecting stylus tip to tactile probe body for coordinate measuring machines (CMM).

技术定义与适配语境
典型 测针杆 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 cylindrical or tapered precision component that serves as the structural connection between the stylus tip and the probe body in tactile coordinate measuring systems. It transmits mechanical contact signals from the measurement tip to the probe's sensing mechanism while maintaining dimensional stability, rigidity, and alignment accuracy under measurement forces.

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组件规格

定义
A cylindrical or tapered precision component that serves as the structural connection between the stylus tip and the probe body in tactile coordinate measuring systems. It transmits mechanical contact signals from the measurement tip to the probe's sensing mechanism while maintaining dimensional stability, rigidity, and alignment accuracy under measurement forces.
工作原理
The stylus shaft functions as a rigid mechanical link that transfers contact forces from the measurement tip to the probe's deflection sensing system. When the stylus tip contacts a workpiece surface, minimal deflection occurs through the shaft, which is detected by strain gauges or optical sensors in the probe head, converting physical contact into precise coordinate data.
材料
High-strength stainless steel (AISI 440C17-4PH)tungsten carbideceramic (zirconia)or titanium alloys. Surface finish: Ra ≤ 0.2 μm. Hardness: 58-62 HRC for steel≥85 HRA for carbide.
Length
20-100 mm
Weight
2-50 g
Diameter
1.5-8 mm
Max Load
0.1-1 N
Thread Type
M2, M3, M4, or proprietary quick-change
Straightness
≤2 μm/100 mm
标准
ISO 10360ISO 15530DIN 32877

行业分类与别名

测针杆 的常用贸易名称、技术标识和检索关键词。

stylus shaftCMM probe shafttactile probe componentmetrology shaftcoordinate measuring machine partsprecision measurement components测针杆Stylus shaft机械和设备制造 测针杆

上级产品

该组件会出现在以下整机或工业产品中。

测量探针（测头）
一种用于坐标测量机（CMM）的精密接触式传感器，通过物理接触采集制造零件的尺寸数据。
查看产品详情 ->
触觉测针
一种用于尺寸测量和表面轮廓扫描的精密接触式传感器组件。
查看产品详情 ->

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Excessive measurement force or accidental impact->Permanent shaft bending or fracture->Implement force limits in CMM software, use protective covers, and train operators on proper probing techniques
Thread wear from frequent mounting/dismounting->Loose connection causing measurement drift->Use torque-limiting tools, implement scheduled thread inspection, and consider quick-change systems with wear-resistant materials
Thermal gradients in measurement environment->Dimensional changes affecting measurement accuracy->Use low thermal expansion materials (carbide, ceramic), implement temperature compensation, and maintain stable environment (±1°C)

工业生态与工程逻辑

兼容对象
Coordinate Measuring Machines (CMM)CNC machine tool probes3D scanning systemsRoundness testersSurface roughness testers
可替换件
RenishawHexagonZeissMitutoyoMahrKeyence
0
Shaft bending under excessive force
1
Thread wear causing mounting instability
2
Thermal expansion affecting accuracy
3
Material fatigue from cyclic loading
4
Contamination affecting surface contact

合规与检测

tolerance
Geometric tolerances per ISO 1101: Straightness ≤0.002 mm, Circularity ≤0.001 mm, Position ≤0.005 mm
test method
Coordinate measuring machine verification per ISO 10360, roundness testing per ISO 12181, surface roughness per ISO 4287

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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。

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检修盖
A removable cover providing access to internal components of a draft gear housing for maintenance and inspection.

常见问题

What is the primary function of a stylus shaft in tactile probing?

The stylus shaft transmits contact forces from the measurement tip to the probe's sensing system while maintaining precise alignment and minimal deflection to ensure accurate coordinate measurement data.

How do material choices affect stylus shaft performance?

Materials impact rigidity, weight, thermal stability, and wear resistance. Stainless steel offers good balance, tungsten carbide provides maximum stiffness, ceramics reduce weight, and titanium alloys offer strength with lighter weight for longer shafts.

What are critical tolerances for stylus shafts?

Straightness (≤2 μm/100 mm), diameter consistency (±5 μm), thread concentricity (≤10 μm TIR), and surface finish (Ra ≤0.2 μm) are critical for measurement accuracy and repeatability.

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