Polishing machine supporting device

The utility model discloses a supporting device of a grinding machine. The device structurally comprises an oil cylinder, a support, a slewing bearing and a gear motor, a telescopic rod of the oil cylinder is hinged to the support; a cavity is formed in the middle of the support. A clamping seat, a push plate and a spring are arranged in the cavity; the clamping seat is locked at the top of the cavity; a containing groove is formed in the middle of the clamping base, polishing abrasive leather is arranged on the containing groove, the push plate is connected into the cavity in a sliding mode,an adjusting push rod is arranged on the push plate, the spring is connected between the clamping base and the push plate, the slewing bearing is arranged above the support, the gear motor is connected with a driving gear, the driving gear is arranged in the slewing bearing, and the drive plate is provided with a friction plate. After the technical scheme is adopted, the supporting device of the grinding machine facilitat