行业组件数据 · 2026

展示夹具/定位座

A precision positioning fixture used in Component Presentation Systems to securely hold and present components for automated assembly, inspection, or packaging operations.

技术定义与适配语境
典型 展示夹具/定位座 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 Presentation Fixture/Nest is a specialized industrial component designed as part of a Component Presentation System. It functions as a precision holding and positioning device that securely locates, orients, and presents individual parts or sub-assemblies to downstream automated processes such as robotic pick-and-place, vision inspection, or manual assembly stations. Its design ensures repeatable accuracy and stability, critical for maintaining production line cycle times and quality standards.

组件规格

定义
A Presentation Fixture/Nest is a specialized industrial component designed as part of a Component Presentation System. It functions as a precision holding and positioning device that securely locates, orients, and presents individual parts or sub-assemblies to downstream automated processes such as robotic pick-and-place, vision inspection, or manual assembly stations. Its design ensures repeatable accuracy and stability, critical for maintaining production line cycle times and quality standards.
工作原理
The fixture operates on the principle of positive location and constraint. A component is loaded into the nest, which is custom-machined or formed to match the component's critical features (e.g., datum surfaces, holes, contours). Mechanical features like pins, clamps, or vacuum ports actively or passively secure the part, eliminating degrees of freedom. The entire fixture, often mounted on a conveyor, rotary table, or linear slide, then presents the component at a precise, predefined station for the next operation.
材料
Typically aluminum (e.g.6061-T6) for lightweight rigidity and machinabilitysteel (e.g.AISI 4140) for high-wear applications or heavy componentsengineered plastics (e.g.Delrin/POMUHMW-PE) for non-marring surfacesor composite materials. Surface treatments like anodizing (aluminum) or nitriding (steel) are common for wear and corrosion resistance.
Interface
Standardized mounting pattern (e.g., grid of M6 or 1/4-20 threaded holes)
Load Capacity
1 kg to 50 kg (varies by design)
Repeatability
±0.02 mm typical
Clamping Force
Configurable (mechanical, pneumatic, vacuum)
Positional Accuracy
±0.05 mm to ±0.5 mm
Fixture Base Material
Aluminum 6061-T6
Operating Temperature
-10°C to +80°C (standard)
Locating Feature Material
Tool Steel or Carbide Inserts
标准
ISO 9001ISO 10218-2DIN 6325DIN 69893

行业分类与别名

展示夹具/定位座 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

Accumulation of debris or chips in locating pins or nest cavity.->Part sits incorrectly, causing misalignment for robotic pick or failed inspection.->Implement regular cleaning schedules; design fixtures with blow-off air jets or easy-clean features; use protective covers when not in operation.
Wear of precision locating surfaces (e.g., pins, V-blocks) over time.->Gradual loss of positional accuracy, leading to assembly errors or scrap.->Use hardened tool steel or carbide inserts for wear surfaces; establish preventive maintenance (PM) schedule for inspection and replacement; monitor process capability (Cpk) trends.
Failure of pneumatic clamp actuator or vacuum pump.->Part is not secured, leading to part drop or movement during presentation.->Incorporate pressure sensors to monitor clamp/vacuum status; design mechanical fail-safes (e.g., spring-loaded clamps); use redundant systems for critical applications.

工业生态与工程逻辑

0
Part mislocation or misorientation
1
Fixture wear leading to positional drift
2
Part damage from excessive clamping
3
Contamination (chips, debris) in nest features
4
Failure of pneumatic/vacuum holding systems

合规与检测

tolerance
Geometric tolerances per ASME Y14.5 or ISO 1101. Critical locating features typically held to IT7 or IT8 grade.
test method
Dimensional inspection via CMM (Coordinate Measuring Machine) or laser tracker to verify feature location and size. Functional testing with master parts to verify repeatability and clamping security under simulated cycle conditions.

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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

What is the difference between a fixture and a nest?

In this context, the terms are often used interchangeably. However, 'nest' typically refers to a cavity or form that cradles a part, while 'fixture' is a broader term for a device that holds and locates a workpiece for an operation. A Presentation Fixture/Nest combines both functions.

How do you ensure a fixture presents a component correctly every time?

Correct presentation is ensured through precision machining of locating features (3-2-1 principle), use of hardened wear surfaces, proper clamping force calculation, and integration with sensors (e.g., proximity or vision) to verify part presence and orientation before presentation.

Can one fixture handle multiple component variants?

Yes, through modular or adjustable designs. Common solutions include interchangeable nest inserts, adjustable locators, or programmable fixtures with servo-driven pins or clamps that reconfigure for different part numbers.

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CNFX Industrial Component Index · 机械和设备制造

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