Bending device for brake pipe with electric upsetting connector body of railway wagon

The invention discloses a brake pipe bending device of a railway wagon electric upsetting connector body. The brake pipe bending device is composed of a bending die assembly driven by a pipe bending machine tool, a movable clamp assembly, a chuck device and a follow-up block. The bending die assembly comprises a bending die and a bending die insert; the movable clamp assembly comprises a movable clamp and a clamp insert; the chuck device is a holding claw mechanism capable of being opened and closed and is formed by combining six clamping arms in a central symmetry mode in the axial direction. And the follow-up block moves along with the chuck device. According to the brake pipe bending device, the profiling chuck device is adopted, the chuck device is a holding claw mechanism capable of being opened and closed, a chuck is arranged in a clamping groove matched with a section step of a connector body, clamping and fixing are stable and reliable in the clamping, feeding, moving and pipe bending processes of the