Clamping device for medium and large complex pitched roof

The invention discloses a clamping device for medium and large complex pitched roofs, and relates to the technical field of clamping jigs. The clamping device comprises a base, a fixed seat and a movable seat, the fixed seat and the movable seat are oppositely arranged at the two ends of the base, a rotating column and a positioning hole are arranged on the fixed seat, a locking mechanism is arranged at the end, facing the movable seat, of the rotating column, and a locking piece is arranged at the other end of the rotating column; an adjusting guide rail is arranged on the base and extends from the movable seat to the fixed seat, and the movable seat is connected to the adjusting guide rail in a sliding mode; a jacking mechanism is arranged on the movable seat, and a jacking end is arranged at the end, facing the locking mechanism, of the jacking mechanism, so that a workpiece can be jacked and fixed through the locking mechanism and the jacking end; by means of the technical scheme, the technical problem th