Assembly fixture for motor brush carrier

The invention discloses an assembly fixture for a motor brush carrier. The assembly fixture for the motor brush carrier achieves the technical effects of fine assembly and accurate locating of the brush carrier for fixing an electric brush in a motor. The assembly fixture comprises a motor end cover (1) and the electric brush carrier (2). The motor end cover (1) is provided with a receding hole (11) and an end cover bearing chamber (6). The electric brush carrier (2) is provided with an electric brush assembly hole (3). One end of an electric brush locating core shaft (4) is provided with a cylindrical step end shaft (7). The electric brush locating core shaft (4) is provided with a through hole (9). The cylindrical step end shaft (7) is arranged in the end cover bearing chamber (6). An inner check mouth end face (8) on the end cover bearing chamber (6) abuts against a cylindrical step vertical surface (5). An electric brush locating rod (10) penetrates through the receding hole (11) and the through hole (9) in sequence and then is connected with the electric brush assembly hole (3) in a penetrating mode. The assembly fixture substantially improves the assembly accuracy of the electric brush and a rotor and lowers the occurrence rate of collecting ring ablation accidents.