Contact finger spring screwing tool

The invention relates to the technical field of contact finger spring assembly, in particular to a rotary mounting tool for a contact finger spring. The rotary installation tool for the contact finger spring comprises a pressing mechanism used for pressing one end of an outer spring and a rotating mechanism used for driving the other end of the outer spring to rotate in the direction opposite to the rotating direction of the outer spring, the pressing mechanism and the rotating mechanism get close to each other and get away from each other through a guide mechanism, and the rotating mechanism comprises a first vertical plate. A driving gear, an auxiliary gear, a transmission gear and a gear shaft are rotationally assembled on the first vertical plate, the driving gear is the same as the auxiliary gear, and the driving gear transmits power to the auxiliary gear through the transmission gear, so that the driving gear and the auxiliary gear rotate in the same direction; the gear shaft comprises a rotating shaft