Seat chassis knob quick screwing device

The utility model discloses a seat chassis knob quick screwing device which comprises a bottom plate, a protective cover is installed on the bottom plate, a motor fixing seat is arranged on one side of the bottom plate, a servo motor is arranged on the motor fixing seat, an output shaft is arranged on the servo motor, and an installation seat is connected to the output shaft of the servo motor. The machining speed of the rapid screwing device for the seat chassis knob is conveniently controlled, accurate adjustment is conducted, the installation efficiency of the seat chassis knob is improved, the to-be-machined knob on the to-be-machined chassis is inserted into the replaceable rotary ring by holding the to-be-machined chassis, and the servo motor drives the installation base and the replaceable rotary ring to rotate, so that the to-be-machined knob on the to-be-machined chassis is inserted into the replaceable rotary ring. And the to-be-processed knob is screwed into the to-be-processed chassis to complete