Assembly tool and method for aligning magnetic ring of steering torque sensor

The invention discloses an assembly tool and method for aligning a magnetic ring of a steering torque sensor, and belongs to the technical field of steering torque sensor manufacturing. Comprising a driving lever assembly, a sensor left ring fixing unit and a sensor right ring fixing unit, the sensor left ring is fixedly connected with the torsion rod; the deflector rod assembly comprises a trapezoidal lead screw and a deflector rod fixedly connected with the sensor right ring fixing unit, a lead screw sliding block is fixedly connected with a horizontal deflector rod, and the horizontal deflector rod and the trapezoidal lead screw are located on the same horizontal plane and are axially perpendicular to each other; angle deviation sensors are arranged on the sensor right ring and the sensor left ring; the deflector rod is slidably connected with a deflector rod sleeve, and one end of the deflector rod sleeve is fixedly connected to the horizontal deflector rod through a knuckle bearing; the steering torque s