Design of roundness measurement model with multi-systematic error for cylindrical components with large radius

Area of Science:

• Metrology and Measurement Science
• Mechanical Engineering
• Manufacturing Technology

Background:

• Accurate roundness measurement is critical for cylindrical component quality.
• Traditional models often neglect multiple systematic errors, limiting precision.
• Existing methods struggle with components exhibiting large radii.

Purpose of the Study:

• To develop an advanced roundness measurement model incorporating multi-systematic errors.
• To analyze the impact of eccentricity, probe offset, probe tip radius, and tilt error on roundness measurement.
• To enhance the accuracy of roundness measurements for cylindrical components, particularly those with large radii.

Main Methods:

• Design of a novel roundness measurement model integrating eccentricity, probe offset, probe tip radius, and tilt error.
• Analysis of systematic error effects and component radius influence on measurement accuracy.
• Experimental validation using a high-precision rotating spindle instrument and a standard cylindrical component on a roundness measuring machine.

Main Results:

• The proposed model demonstrates improved accuracy compared to the traditional limacon model.
• An accuracy increase of approximately 2.2 μm was achieved for components with a radius around 37 mm.
• The model effectively accounts for multi-systematic errors in roundness measurement.

Conclusions:

• The developed roundness measurement model offers superior accuracy, especially for large-radius cylindrical components.
• The method facilitates error separation, calibration, and comparison in metrology applications.
• This approach advances the precision and reliability of roundness metrology for industrial components.