Irregular cambered surface positioning line drawing device

The utility model discloses an irregular cambered surface positioning line drawing device, which belongs to the technical field of steel structures and comprises a guide reference component, a connecting rod is fixed on the guide reference component and connected with an adjusting slide rail, sleeve components are uniformly distributed on the surface of the adjusting slide rail, and the sleeve components are connected with a holder component. The sleeve assembly comprises a first sleeve, the first sleeve is arranged on the adjusting sliding rail in a sleeving mode, a through hole is formed in the surface of the first sleeve, a cylinder structure is arranged at the position of the through hole, a butterfly screw is arranged in the cylinder structure, the first sleeve is connected with a connecting plate, the connecting plate is connected with a second sleeve, and a clamping device assembly is arranged in the second sleeve and comprises a clamping screw rod. A clamping nut is arranged at the lower end of the cl