Forming grinding wheel dressing equipment for piston ring grinding machining and dressing method of forming grinding wheel dressing equipment

The invention discloses forming grinding wheel dressing equipment for piston ring grinding machining and a dressing method of the forming grinding wheel dressing equipment, and particularly relates to the field of piston ring machining.The forming grinding wheel dressing equipment for piston ring grinding machining comprises a machining table and a mounting table, and a grinding machine and a shaping machine are arranged on the mounting table; the shaping machine is mounted on the mounting table through a Y-axis feeding mechanism and an X-axis feeding mechanism, a machining grinding wheel is mounted on the grinding machine, a plurality of groups of chamfering grooves are formed in the circumferential surface of the machining grinding wheel, the chamfering grooves are of V-shaped groove structures, a finishing wheel is mounted on the grinding machine, and chamfering pieces are fixedly mounted at the positions, corresponding to the chamfering grooves, of the finishing wheel; and a cooling cover is arranged abov