Hardware support machining paint spraying device

The utility model relates to the technical field of paint spraying devices, in particular to a hardware support machining paint spraying device which comprises an operation cabinet, a paint spraying bin is arranged in the operation cabinet, a cabinet door is connected to one side of the operation cabinet through hinges, and paint spraying heads are rotationally arranged at the lower ends of connecting columns through two sets of fixing plates. A hydraulic cylinder is arranged at the lower end of the paint spraying bin, a supporting frame is arranged at the top of the hydraulic cylinder, the height of the supporting frame is controlled by arranging the hydraulic cylinder, and the opening range of an auxiliary supporting frame is controlled through an electric telescopic rod so as to support and adapt to hardware of different specifications; a straight rack is driven by a linear motor to be meshed with an adjusting gear to control the angle of a paint spraying head, all-directional paint spraying is conducted o