Flexible coupling with forward and reverse rotation function

The invention discloses a flexible coupling with forward and reverse rotation functions. The flexible coupling comprises a coupling A joint, an electric spindle output end, an O-shaped rubber ring, a rubber column and a coupling B joint. A coupling A joint is mounted at the output end of the motorized spindle according to a 3 # Morse taper fit mode; the O-shaped rubber rings are mounted in clamping grooves of the coupling A joint and the coupling B joint and can tension the coupling A joint and the coupling B joint; the rubber columns are installed in anti-collision grooves of the coupler A connector and the coupler B connector to prevent the two connectors from colliding due to direct contact. The other end of the coupler B is connected with a driven shaft. The positive and negative rotation function is achieved in a 3 # Morse taper matching mode, axial vibration and radial vibration of the output end of the motorized spindle are effectively eliminated in a flexible rubber connecting and fixing mode, extra a