Aiming at tooth surface accuracy of bevel gear by face hobbing

the tooth surface error measuring is studied on domestic gear measurement center.The measuring principle is analyzed

and the measuring area and measuring path are planned

and the mathematical model of the bevel gear is established

and the theoretical tooth surface is calculated.The coordinates of probe radius and deformation are compensated

through coordinate transformation between work system and measuring machine system

and the theoretical coordinates of probe center which are used to control measuring movement are obtained

and the tooth surface error equation is established according to actual measured data.Finally the measuring software of tooth surface accuracy is developed on domestic gear measurement center

and the result demonstrates that the measuring method is feasible and correct by measuring experiment.