Motor-driven screw pulling mechanism

The utility model discloses a motor drive screw pulling mechanism which comprises a rack, a carriage crane, a motor device and a screw pulling piece, the carriage crane can be installed on the rack in a front-and-back horizontal moving mode, and the rack is provided with a rack guide rail which extends in the front-and-back direction and is located below the carriage crane. The motor device is installed on the upper side of the carriage traveling crane, an output shaft of the motor device extends to the lower side of the carriage traveling crane and is provided with a driving gear correspondingly meshed with the rack guide rail in a transmission mode, and the screw drawing piece is installed on the carriage traveling crane. The motor-driven screw pulling mechanism is compact in structure, high in space utilization rate, capable of stably and efficiently pulling the screw, constant and accurate in force application and capable of well preventing the screw from being damaged. 本实用新型公开了一种电机驱动拔螺杆机构，包括台架、拖板行车、电机装置和