In wheel swing error detection line system

Harmonic analysis method is applied for axial and radial run-out error nature analysis and judgment which affords scientific evidence for improving wheel machining accuracy. At first, this paper introduces the constitute, hardware structure and working principle of wheel swing error detection line system. Through moving mean filter method, axial and radial run-out error of detected wheel is filtered digitally and impact of external noise for detected data is reduced; Secondly Fourier series expansion method is applied to the actual wheel contour harmonic characteristic analysis and the contour characteristics are digitized; finally the actual wheel contour of some component is acquired digitally on detection equipment, and the reason of axial and radial run-out error is analyzed and judged with harmonic Analysis method. This system is applied to the actual wheel production line, which is operated steadily and reliably for 100% axial and radial run-out error of parts online detection. The system detection error is less than 0.1mm.