Assembling tool for motor brush carrier

The utility model discloses an assembling tool for a motor brush carrier and solves a technical problem of fine assembly and accurate positioning of a brush carrier for fixing a brush of a motor. The assembling tool comprises a motor end cover (1) and a brush carrier (2). The motor end cover (1) is provided with a receding hole (11) and an end cover bearing chamber (6). The brush carrier (2) is equipped with a brush assembling hole (3). One end of a brush positioning mandrel (4) is provided with a cylindrical step end axle (7). The brush positioning mandrel (4) is provided with a through hole (9). The cylindrical step end axle (7) is arranged in the end cover bearing chamber (6). The inner-side front edge end face (8) on the end cover bearing chamber (6) is abutted against a cylindrical step vertical surface (5). A brush positioning rod (10) successively passes through the receding hole (11) and the through hole (9) to pass through the brush assembling hole (3). The assembling tool greatly improves the assembling precision of the brush and a rotor, and reduces incidence rate of burning of a collecting ring.