Paint spraying structure and sheet metal part machining device

The utility model relates to the technical field of sheet metal part processing, in particular to a paint spraying structure and a sheet metal part processing device.The paint spraying structure comprises a paint spraying assembly which is installed on a box body, clamping air cylinders are arranged on the two sides of the box body, the clamping air cylinders penetrate through the box body, piston rods of the clamping air cylinders are connected with an installation plate, and a check block is arranged on the lower side of the installation plate; a supporting plate is rotationally connected to the mounting plate, two sets of fixing plates are slidably connected to the supporting plate, and extrusion assemblies are arranged on the back faces of the fixing plates; the device has the beneficial effects that the two fixing plates are extruded through the extrusion assembly, it is guaranteed that in the overturning process, the two fixing plates clamp a sheet metal part, when the extrusion assembly moves backwards