Experimental and theoretical research of cams wearing of cams mechanism

Abstract

Experimental method of cam mechanisms with roller follower sizes measuring with digital photograph treatment results interpretation is studied. These results define displacement of cam mechanisms of bending automatic press. We have defined transfer functions of velocity and acceleration, which indicate the wear of cams. Method of recover of original cam profile by transfer function of velocity of follower of worn cam mechanism has been studied. Having compared original and worn profiles, the picture of cam wearing has been obtained. Based on functional analog of contact stress, obtained from the Hertz formula, the simulation model of cams wearing was constructed. Comparison of actual wear value and wear value was calculated by simulation model demonstrated its quality concurrence. Recommendations have been given on choosing the law of motion of follower framed by given cyclogram at cam recover. © Springer Science+Business Media B.V. 2009.