Assembly method for gear housing of micro direct-current motor in automobile window regulator

The invention discloses an assembly method for a gear housing of a micro direct-current motor in an automobile window regulator. The method comprises the following steps of S1, judging the product appearance of a gear housing by adopting an appearance detection mechanism; S2, measuring the internal depth of a gear housing main body by adopting a depth detection mechanism, and determining whether asealing ring is arranged on a center column on the gear housing main body or not; S3, detecting the airtightness of semipermeable membrane paper on the outer surface of the gear housing by adopting an airtightness detection mechanism; S4, mounting a cushion pad, an inner gasket and an inner bearing on the gear housing by adopting a cushion pad assembling mechanism, an inner gasket assembling mechanism and an inner bearing assembling mechanism respectively; S5, detecting a part position in the gear housing main body with a position detection mechanism; S6, mounting a spherical bearing with a spherical bearing assembli