Rough grinding carriage

The utility model belongs to the technical field of glass processing equipment, and particularly discloses a rough grinding carriage which comprises a carriage assembly and a driving assembly, and the carriage assembly comprises a fixed carriage and a sliding carriage; the driving assembly comprises a gearbox connected to one end of the fixed carriage, a motor and an adjusting handle, the motor and the adjusting handle are arranged outside the gearbox, a driving gear is rotationally arranged in the gearbox and connected with the motor, one side of the driving gear is in toothed connection with a driven gear, one side of the driven gear is in toothed connection with a manual gear, and the manual gear is connected with the adjusting handle. One end of the driven gear is connected with a lead screw, the end, away from the driven gear, of the lead screw penetrates through the fixed carriage and is located in the sliding groove, and a lead screw nut is arranged on the lead screw in a sliding mode and connected wit