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Novel Robotic Test Rig for Camshaft Geometry Measurement with a Collaborative Robot.

Agnieszka Sękala1, Jacek Królicki2, Tomasz Blaszczyk3

  • 1Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland.

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Summary
This summary is machine-generated.

This study introduces a novel robotic test stand for precise camshaft geometry measurement, enhancing preventive quality control in high-volume manufacturing. The system ensures repeatable, accurate measurements, improving inspection efficiency and standardization.

Keywords:
collaborative robot-based quality controlcomparative measurementspreventive quality controlquality control systemrobotic camshaft geometry measurementrobotic ultrasonic measurement

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Area of Science:

  • Robotics and Automation
  • Metrology and Quality Control
  • Mechanical Engineering

Background:

  • High-volume production demands efficient and reliable quality control methods for critical components like camshafts.
  • Traditional inspection methods for camshaft geometry can be time-consuming, prone to human error, and lack flexibility.
  • There is a need for automated, repeatable, and scalable solutions for preventive quality control in camshaft manufacturing.

Purpose of the Study:

  • To design and experimentally validate an innovative robotic test stand for automated measurement of camshaft cam geometry.
  • To develop a comprehensive measurement methodology for acquiring and processing geometric features critical to camshaft performance.
  • To assess the repeatability and accuracy of the robotic test stand by comparing its measurements with conventional metrology tools.

Main Methods:

  • Integration of a collaborative robot (cobot) with a specialized measurement setup for precise camshaft positioning.
  • Development of an automated data acquisition procedure and signal processing techniques to determine key cam geometry parameters.
  • Utilization of an indirect ultrasonic measurement model combined with a quadrant-based sensor strategy and 90° camshaft indexing for full-profile acquisition.

Main Results:

  • Experimental validation confirmed the robotic test stand's ability to provide repeatable measurement results.
  • Stable identification of critical geometric features was achieved across multiple trials.
  • High agreement was observed between measurements from the robotic stand and reference data from conventional metrology tools.

Conclusions:

  • The cobot-based test stand is suitable for preventive quality control in industrial camshaft production.
  • The proposed system offers a scalable, flexible, and efficient alternative to manual inspection and dedicated gauges.
  • This innovative approach enhances inspection throughput and standardizes quality control workflows in manufacturing environments.