Surface heat treatment device for hydraulic pipe fitting machining

The utility model relates to the related technical field of hydraulic pipe fittings, in particular to a surface heat treatment device for hydraulic pipe fitting machining, which comprises a frame, a fixing plate, a cooling mechanism and a heating mechanism, the inner side surface of the frame is fixedly connected with the fixing plate, and the cooling mechanism is arranged on the lower surface of the frame. And a heating mechanism is arranged on the upper surface of the fixing plate. Through the arrangement of an electric box, a first connecting piece, a supporting frame, an air cylinder, a protective shell, a motor, a rotating shaft, a rotating disc, a second connecting piece and a heating coil, when a pipe fitting is heated, the hydraulic pipe fitting is firstly placed on the second connecting piece, then the motor is started to drive the rotating disc to rotate through the rotating shaft, and then rotation is stopped when the hydraulic pipe fitting reaches the position below the heating coil; then the air