Automatic screw locking machine

The utility model discloses an automatic screw locking machine which comprises a rack. A turntable and a driving device driving the turntable to intermittently rotate in an indexing and stepping manner are arranged on the rack, multiple product clamps used for fixing workpieces are equidistantly arranged on the outer side of the periphery of the turntable, a workpiece feeding passage and a screw feeding passage are arranged on each product clamp, and an automatic workpiece feeding mechanism feeding workpieces into the workpiece feeding passages, an automatic screw feeding mechanism feeding screws into the screw feeding passages, an automatic screw locking device fixing the workpieces and screwing the screws into the workpieces, and an automatic discharging device taking the workpieces out of the product clamps are sequentially arranged the turntable. By automatic indexing rotating of the turntable, the automatic feeding mechanisms are adopted to automatically and sequentially place the workpieces and the screws into the product clamps respectively, and the screws are automatically locked by the automatic screw locking device, so that efficiency is greatly improved, the whole process is continuous while waiting is not needed, and manpower cost is lowered.