Model used for describing gear processing by adopting generating method

The utility model discloses a model used for describing gear processing by adopting a generating method. The model comprises a cylindrical blank, a rear baffle plate, a sliding plate, a rubber rope, side baffle plates, a paper sheet, springs, an iron sheet provided with tooth bars, and a position-restricted driving mechanism. The cylindrical blank can carry out the relative rotation, and is horizontally disposed on the rear baffle plate, and the sliding plate can be moved relatively in a horizontal direction, and is disposed on the rear baffle plate. The side baffle plates are respectively fixedly disposed on two sides of the sliding plate, and the cylindrical blank is provided with a groove on the outer contour along the horizontal cross section. The rubber rope is winded on the groove, and two ends of the rubber rope are respectively connected with one end of each of the two springs, and in addition, the other ends of the springs are fixedly disposed on the side baffle plates. The paper sheet is fixedly dis