INDUSTRY COMPONENT

Chassis Fixture

A precision clamping device used to securely hold vehicle chassis components during assembly operations.

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Component Specifications

Definition
A specialized industrial fixture designed to accurately position and rigidly clamp automotive chassis components during assembly processes. It ensures dimensional stability, repeatability, and alignment for welding, fastening, or inspection operations at chassis assembly stations. The fixture typically incorporates adjustable clamps, locators, and supports to accommodate variations in chassis models while maintaining tight tolerances.
Working Principle
The chassis fixture operates on mechanical clamping principles using pneumatic, hydraulic, or manual actuators to apply controlled force. It employs precision locators (pins, blocks) to reference datums on the chassis, ensuring correct positioning. Clamping elements secure the chassis against these locators, preventing movement during assembly. Some advanced fixtures incorporate sensors to verify part presence and clamping force.
Materials
Primary structure: Steel (AISI 4140 or equivalent, hardened to 45-50 HRC). Locators and wear surfaces: Tool steel (D2 or A2, hardened to 58-62 HRC). Clamping arms: Alloy steel. Bushings: Bronze or hardened steel. Fasteners: Grade 8.8 or higher steel.
Technical Parameters
  • Repeatability ±0.1 mm
  • Actuation Type Pneumatic/Hydraulic/Manual
  • Clamping Force 500-5000 N per clamp
  • Weight Capacity Up to 1500 kg
  • Max Chassis Size 5000 x 2000 x 800 mm
  • Positioning Accuracy ±0.05 mm
Standards
ISO 9001, ISO/TS 16949, DIN 8580, DIN 86250

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Chassis Fixture.

chassis fixture automotive assembly fixture chassis clamping device welding fixture assembly station tooling vehicle chassis tooling Chassis Fixture in Motor Vehicle Manufacturing

Parent Products

This component is used in the following industrial products

Chassis Assembly Station

A specialized workstation within an automotive assembly line where the vehicle chassis is assembled and integrated with major components.

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Engineering Analysis

Risks & Mitigation
  • Misalignment due to wear or damage
  • Insufficient clamping force causing part movement
  • Fixture damage from overload or impact
  • Safety hazards from pinch points or unexpected actuation
FMEA Triads
Trigger: Worn locator pins or bushings
Failure: Poor positioning accuracy leading to assembly errors
Mitigation: Implement preventive maintenance schedule; use hardened materials; install wear sensors
Trigger: Clamping cylinder failure
Failure: Insufficient holding force causing part shift during assembly
Mitigation: Regular pressure checks; redundant clamping systems; force monitoring sensors

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Positioning: ±0.1 mm, Clamping force: ±5% of set value
Test Method
Coordinate Measuring Machine (CMM) verification, clamping force gauge testing, repeatability trials with master chassis

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a chassis fixture?

To securely hold and precisely position vehicle chassis components during assembly operations like welding, bolting, or inspection, ensuring dimensional accuracy and repeatability.

How often should chassis fixtures be calibrated?

Calibration should be performed every 6-12 months or after 10,000 cycles, depending on usage intensity and tolerance requirements. Regular daily checks for wear and damage are also recommended.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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Center casting Clamping Arm