WANG Yi-fan, XUE Yu. Design of heavy calibre and high precision cam-varifocal mechanism[J]. Optics and precision engineering, 2007, 15(11): 1756-1759.DOI:
After analyzing the structure and finding the influence factors on the system precision
a slidable ball set of axis is added on the varifocal mechanism to solve the problem of bigger variation of optic axis in heavy calibre cam-varifocal system. By adjusting and measuring the structure
this method can control the variation of optic axis into 0.01 mm to meet the precision requirement in measurement system. The results show that the design of a heavy calibre and high precision cam-varifocal mechanism has been improved by the method of adding the sliable ball set of axis.