Industry-Verified Manufacturing Data (2026)

Precision Fixture

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Precision Fixture used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Precision Fixture is characterized by the integration of Base Plate and Locating Pins. In industrial production environments, manufacturers listed on CNFX commonly emphasize Aluminum alloy construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A specialized holding device designed for accurate positioning and secure clamping of components during RF shield assembly processes.

Product Specifications

Technical details and manufacturing context for Precision Fixture

Definition
A precision fixture is a critical component of the RF Shield Assembly Station that provides exact positioning, alignment, and secure clamping of RF shielding components during assembly operations. It ensures repeatable accuracy for consistent shield placement, proper contact between shield elements, and reliable electrical connections while preventing damage to delicate shielding materials.
Working Principle
The fixture uses precisely machined locating surfaces and adjustable clamping mechanisms to hold RF shield components in their exact required positions. It typically incorporates alignment pins, datum surfaces, and controlled clamping force to maintain component orientation during assembly operations such as soldering, welding, or mechanical fastening of RF shields to electronic assemblies.
Common Materials
Aluminum alloy, Stainless steel
Technical Parameters
  • Positioning accuracy tolerance for fixture locating features (mm) Per Request
Components / BOM
  • Base Plate
    Primary structural foundation providing mounting points and datum surfaces
    Material: Aluminum alloy
  • Locating Pins
    Precision-ground pins for exact component positioning and alignment
    Material: Stainless steel
  • Clamping Mechanism
    Adjustable system for securing components with controlled force
    Material: Stainless steel
  • Mounting Brackets
    Attachment points for securing fixture to assembly station
    Material: Steel
Engineering Reasoning
0.5-15 kN clamping force, 0.01-0.05 mm positioning accuracy, -20°C to 120°C operating temperature
Clamping force exceeds 18 kN causing permanent deformation, positioning accuracy degrades beyond 0.1 mm, temperature exceeds 150°C causing thermal expansion mismatch
Design Rationale: Yield strength of hardened steel (typically 800-1200 MPa) exceeded at 18 kN load, thermal expansion coefficient mismatch (11.7×10⁻⁶/°C for steel vs 23.1×10⁻⁶/°C for aluminum) at high temperatures
Risk Mitigation (FMEA)
Trigger Cyclic loading at 12-15 kN range during repeated assembly cycles
Mode: Fatigue crack initiation at clamping jaw root radius (stress concentration factor Kt=2.8)
Strategy: Implement shot peening surface treatment to induce compressive residual stresses of -400 to -600 MPa
Trigger Thermal cycling between -20°C and 120°C at 5 cycles/hour
Mode: Differential thermal expansion causing 0.08 mm positional drift at interface surfaces
Strategy: Incorporate Invar 36 alloy (CTE 1.3×10⁻⁶/°C) inserts at critical alignment points

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Precision Fixture.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 50 psi clamping pressure
other spec: Positioning accuracy: ±0.005 inches, Vibration tolerance: <5g RMS
temperature: -20°C to 150°C
Media Compatibility
✓ Aluminum RF shields ✓ Copper shielding components ✓ Stainless steel EMI enclosures
Unsuitable: Corrosive chemical bath environments
Sizing Data Required
  • Component maximum dimensions (LxWxH)
  • Required clamping force for secure hold
  • RF shield assembly process cycle time

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fixture Drift
Cause: Thermal expansion/contraction cycles causing dimensional instability, often from repeated heating during machining operations or ambient temperature fluctuations.
Clamping Force Degradation
Cause: Wear in clamping mechanisms (threads, wedges, or hydraulic seals) leading to insufficient holding force, typically from cyclic loading and particulate contamination.
Maintenance Indicators
  • Visible workpiece slippage or misalignment during operation
  • Unusual audible creaking or grinding from clamping components
Engineering Tips
  • Implement regular torque calibration and thermal compensation protocols to maintain clamping accuracy
  • Establish preventive cleaning and lubrication schedules for all moving parts, using manufacturer-specified lubricants

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ANSI B5.54 - Machine Tool Components DIN 6325 - Parallel Keys and Keyways
Manufacturing Precision
  • Bore: +/-0.01mm
  • Flatness: 0.05mm
Quality Inspection
  • Coordinate Measuring Machine (CMM) Verification
  • Surface Roughness Analysis

Factories Producing Precision Fixture

Verified manufacturers with capability to produce this product in China

✓ 96% Supplier Capability Match Found

P Procurement Specialist from Australia Jan 07, 2026
★★★★★
"Testing the Precision Fixture now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
T Technical Director from Singapore Jan 04, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
P Project Engineer from Germany Jan 01, 2026
★★★★★
"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this Precision Fixture meets all ISO standards."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

17 sourcing managers are analyzing this specification now. Last inquiry for Precision Fixture from UAE (1h ago).

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Frequently Asked Questions

What materials are used in the Precision Fixture and why?

The Precision Fixture uses aluminum alloy for lightweight durability and stainless steel for corrosion resistance and strength, ensuring precise, long-lasting performance in electronic manufacturing environments.

How does the Precision Fixture improve RF shield assembly processes?

It provides accurate positioning via locating pins and secure clamping through its mechanism, reducing assembly errors and increasing efficiency in RF shield production for computers and optical products.

What components are included in the Precision Fixture BOM?

The Bill of Materials includes a Base Plate for stability, Locating Pins for precision alignment, a Clamping Mechanism for secure holding, and Mounting Brackets for flexible installation in manufacturing setups.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

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