Industry-Verified Manufacturing Data (2026)

Positioning Fixture

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Positioning Fixture used in the Motor Vehicle Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

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

A specialized clamping device that precisely holds and positions trailer frame components during robotic welding operations.

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Product Specifications

Technical details and manufacturing context for Positioning Fixture

Definition
A critical component of the Trailer Frame Welding Robot system that securely clamps and accurately positions trailer frame structural elements (such as beams, crossmembers, and brackets) in the correct spatial orientation and alignment to ensure precise, consistent, and high-quality robotic welding. It eliminates manual positioning errors and enables automated, repeatable welding processes.
Working Principle
The fixture uses mechanical clamps (often hydraulic or pneumatic) activated by the robot control system to grip the workpiece. It incorporates precisely machined locating pins, stops, and surfaces that reference the trailer frame components against a fixed datum, ensuring all parts are held in their exact designated welding positions before and during the welding cycle.
Common Materials
Carbon Steel, Alloy Steel
Technical Parameters
  • Positioning accuracy (typically ±0.1mm to ±0.5mm) and repeatability of the fixture locating points. (mm) Per Request
Components / BOM
  • Base Plate
    Provides a rigid, flat foundation for mounting all other fixture components and locating the entire assembly within the robot cell.
    Material: steel
  • Locating Pin
    Precisely positions the workpiece by engaging with pre-drilled holes in the trailer frame components, defining primary location.
    Material: hardened steel
  • Clamp Arm
    Movable arm that applies force to hold the workpiece firmly against the locating surfaces and pins.
    Material: steel
  • Support Block
    Provides additional vertical support to the workpiece to prevent sagging or vibration during welding.
    Material: steel
Engineering Reasoning
0.02-0.05 mm positioning tolerance, 150-300 N clamping force, 20-80°C operating temperature
Clamping force drops below 100 N, positioning tolerance exceeds 0.1 mm, temperature exceeds 120°C
Design Rationale: Thermal expansion mismatch between fixture steel (α=12×10⁻⁶/°C) and aluminum frame components (α=23×10⁻⁶/°C) causing dimensional drift, hydraulic pressure loss below 5 MPa leading to insufficient clamping force
Risk Mitigation (FMEA)
Trigger Hydraulic fluid contamination with 15 μm particles exceeding ISO 4406 18/16/13 cleanliness code
Mode: Spool valve sticking causing 40% reduction in clamping force
Strategy: Install 10 μm absolute filtration with differential pressure monitoring at 0.3 MPa warning threshold
Trigger Cyclic loading at 0.5 Hz frequency exceeding 10⁷ cycles at 250 N amplitude
Mode: Fatigue crack initiation at fixture baseplate fillet welds (stress concentration factor Kt=2.8)
Strategy: Implement shot peening to induce 400 MPa compressive residual stress at critical weld locations

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Positioning Fixture.

robotic welding positioning fixture trailer frame motor vehicle manufacturing clamping device carbon steel trailer frame fixture precision locating pin support block automated welding fixture for automotive components

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max clamping force: 5000 N, Max hydraulic pressure: 200 bar
other spec: Positioning accuracy: ±0.1 mm, Repeatability: ±0.05 mm, Vibration tolerance: ≤5 g RMS
temperature: 0°C to 50°C (operating), -20°C to 70°C (storage)
Media Compatibility
✓ Steel trailer frame components ✓ Aluminum structural members ✓ Pre-coated metal parts
Unsuitable: Corrosive chemical exposure environments
Sizing Data Required
  • Component dimensions and geometry
  • Required clamping force for welding stability
  • Robotic welding cell layout constraints

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wear-induced misalignment
Cause: Repeated clamping cycles cause wear on contact surfaces and locating pins, leading to positional drift and reduced accuracy.
Fatigue failure of clamping components
Cause: Cyclic loading from repeated actuation leads to material fatigue in critical components like jaws, actuators, or fasteners.
Maintenance Indicators
  • Visible wear marks, scoring, or deformation on locating surfaces and clamping components
  • Audible grinding, clicking, or excessive vibration during clamping operations
Engineering Tips
  • Implement regular precision calibration checks using certified measurement tools to detect and correct positional drift before it affects production quality
  • Establish a preventive maintenance schedule for lubrication of moving parts and replacement of wear components based on documented cycle counts rather than time intervals

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ANSI B5.54-2005 - Methods for Performance Evaluation of Computer Numerically Controlled Machining Centers DIN 6325-1 - Workholding Fixtures - Part 1: Modular Fixture Systems
Manufacturing Precision
  • Positional Accuracy: +/-0.01mm
  • Surface Flatness: 0.05mm per 300mm
Quality Inspection
  • Coordinate Measuring Machine (CMM) Verification
  • Repeatability Test with Dial Indicator

Factories Producing Positioning Fixture

Verified manufacturers with capability to produce this product in China

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✓ 98% Supplier Capability Match Found

P Project Engineer from Singapore Feb 19, 2026
★★★★★
"Standard OEM quality for Motor Vehicle Manufacturing applications. The Positioning Fixture arrived with full certification."
Technical Specifications Verified
S Sourcing Manager from Germany Feb 16, 2026
★★★★★
"Great transparency on the Positioning Fixture components. Essential for our Motor Vehicle Manufacturing supply chain."
Technical Specifications Verified
P Procurement Specialist from Brazil Feb 13, 2026
★★★★★
"The Positioning Fixture we sourced perfectly fits our Motor Vehicle Manufacturing production line requirements."
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.”

18 sourcing managers are analyzing this specification now. Last inquiry for Positioning Fixture from Germany (1h ago).

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Frequently Asked Questions

What makes this positioning fixture suitable for robotic welding operations?

This fixture features precise locating pins and clamp arms that securely hold trailer frame components in exact positions, ensuring consistent weld quality and repeatability in automated manufacturing environments.

How does the carbon steel and alloy steel construction benefit motor vehicle manufacturing?

Carbon steel provides excellent strength and durability for the base structure, while alloy steel components offer enhanced wear resistance and precision for clamping elements, ensuring long service life in demanding production settings.

What components are included in the BOM and how do they function together?

The BOM includes a base plate for stability, clamp arms for secure holding, locating pins for precise positioning, and support blocks for structural reinforcement. These components work together to create a rigid, repeatable fixturing system for trailer frame assembly.

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.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Motor Vehicle Manufacturing sector.

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