The invention belongs to the field of
metal tube
machining, and particularly discloses a
metal bent tube production device. The
metal bent tube production device comprises a
machine frame, wherein a
tube bending mechanism, a gripper mechanism, a centering mechanism, a
tube bending mechanism rotating shaft, a rotating rod and a fixing part are arranged on the
machine frame; the
machine frame is further provided with a clamping mechanism, and the clamping mechanism is connected with a switch; the centering mechanism comprises a
standard test piece, three sliding sleeves sleeve the standard testpiece, a first connecting rod is hinged between every two adjacent sliding sleeves, a middle vertical rod is vertically fixed in the middle of a second connecting rod, the two middle vertical rods arein crossed sliding connection, and a
lantern ring is arranged at the crossed position, a first transmission mechanism is connected between the
lantern ring and the rotating shaft, and the second connecting rod is arranged between the
lantern ring and the sliding sleeve, and a second transmission mechanism is connected between the second connecting rod and a rotating rod; and the switch comprisesa first conductive sheet and a second conductive sheet. According to the metal bent tube production device, when the device is adopted for
tube bending forming
machining, a metal tube can be machinedwithout changing a tube bending machine, and bending of two sections of different-
diameter arcs can be carried out on the metal tube only by one device.