Curved glass cutting device

The invention discloses a curved glass cutting device, and relates to the technical field of glass cutting. The device comprises an operation table, supporting columns and a portal frame. Guide railsare installed on the two sides of the operation table correspondingly. A limiting plate is arranged on one side of each guide rail; a screw rod is rotationally mounted between each limiting plate anda baffle plate; and the plurality of supporting columns are evenly installed on the operation table. Each supporting column comprises a fixed pipe fixed to the operation table. A suction pipe is sleeved in each fixed pipe; a sucker is fixed at the upper end of each suction pipe; a sucker is fixed at the upper ends of the suction pipes; the bottom ends of two vertical rods of the portal frame are slidably mounted on the guide rails; a sliding rod is sleeved with a sliding block; and a cutter is fixed on a telescopic rod below the sliding block. The supporting columns are uniformly arranged on the operation table, springs arranged on the supporting columns in a sleeving mode are used for enabling spring curved glass to be tightly attached to the bottom face of the glass under extrusion of the spring curved glass, meanwhile, the cutter on the portal frame above completes cutting of the curved glass, the glass cannot move when a user cuts the glass, and the cutting quality and the cuttingefficiency of the curved glass are improved.