Flexible tool and assembling method for car roof full-length camber beam framework module

The invention relates to the field of railway vehicle technologies and manufacturing methods, and discloses a flexible tool and an assembling method for a car roof full-length camber beam framework module. The flexible tool comprises a basic device, an adjusting device, a supporting device, a positioning device and a pressing device; the adjusting device comprises a transverse adjusting mechanism and a longitudinal adjusting mechanism which are arranged on the basic device; the supporting device comprises a plurality of supporting plates and a seat plate, the seat plate is arranged at the output end of the longitudinal adjusting mechanism, the supporting plates are rotationally arranged on the seat plate, and the supporting plates are combined to form an arc-shaped supporting surface to serve as a carrier of the framework module; the pressing device is used for pressing the bent beam; the longitudinal adjusting mechanism drives the seat plate to move to adjust the radian of the camber beam; and the positionin