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Design of a Multi-Point Kinematic Coupling for a High Precision Telescopic Simultaneous Measurement System.

Raquel Acero1,2, Juan José Aguilar1,2, Francisco Javier Brosed1,2

  • 1Department of Design and Manufacturing Engineering, University of Zaragoza, María de Luna 3, 50018 Zaragoza, Spain.

Sensors (Basel, Switzerland)
|October 13, 2021
PubMed
Summary
This summary is machine-generated.

A novel multi-point kinematic coupling enhances machine tool verification by enabling simultaneous operation of telescopic arms. This design achieves high precision measurements with repeatability below ±1.2 µm.

Keywords:
interferometrykinematic couplingmachine toolmultilaterationtelescopic system

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Area of Science:

  • Metrology and Measurement Science
  • Mechanical Engineering
  • Precision Engineering

Background:

  • Machine tool verification requires high-precision measurement systems.
  • Existing systems face challenges with simultaneous operation and collision avoidance.
  • Telescopic arm measurement systems demand robust and accurate kinematic couplings.

Purpose of the Study:

  • To design a novel multi-point kinematic coupling for a high-precision multi-telescopic arm measurement system.
  • To enable simultaneous operation and accurate registration of three telescopic arms to a sphere.
  • To ensure collision avoidance and precise alignment during machine tool volumetric verification.

Main Methods:

  • Design and simulation of a multi-point kinematic coupling.
  • Integration with a multi-telescopic arm measurement system.
  • Experimental validation of the coupling's performance and repeatability.

Main Results:

  • The multi-point kinematic coupling allows simultaneous operation of three telescopic arms.
  • Repulsion forces ensure finger interlacing and avoid collisions during machine tool travel.
  • Simulations show minimal deformation under load, ensuring measurement precision.
  • Experimental results demonstrate repeatability values below ±1.2 µm.

Conclusions:

  • The developed multi-point kinematic coupling is suitable for high-precision volumetric verification of machine tools.
  • The design ensures accurate, collision-free operation of multi-telescopic arm systems.
  • The achieved repeatability meets stringent requirements for precision metrology.