After the grinding of the gear cutter, the radial clearance of the front edge of the tool, the adjacent joint difference of the chip flute, the maximum cumulative error of the chip flutes, and the parallelism between the front face of the cutter tooth and the axis of the bore hole must be checked. Under the premise of not affecting the gear strength, improve the high coefficient of addendum, increase 0.05 ~ 0.1m ,, improve the tool tooth top coefficient, avoid gear transmission tooth root interference. M = 1 ~ 2 gear tooth top repair round cutter, repair round amount R = 0.1 ~ 0.15m.

        Eliminate the top gear burr, improve the gear tooth top interference. The gear-cutting equipment should be checked once a year for accuracy, which can not meet the requirements and must be repaired. The operator should also be self-test, especially in the machine tool spindle radial clearance control in 0.01mm below the knife shaft diameter jump 0.005mm below the knife axis movement 0.008mm the following. Tool installation accuracy: tool radial runout control in the 0.003mm below the end surface runout 0.004mm below.