Automatic feeding device

The utility model provides an automatic feeding device for centre gripping and transport work piece. Automatic feeding device includes the frame, sets up the benchmark fixture in the frame and is located benchmark fixture's both sides respectively and set up two pay -off subassemblies in the frame with sliding. Benchmark fixture includes the fixed base that sets up in the frame, sets up the first holder on the base and set up the pressing piece above first holder, first holder holding workpiece, and the pressing piece descends in order to compress tightly the work piece in the first holder. Delivery sheet that every pay -off subassembly is connected including the fixed pay -off driving piece that sets up in the frame, with the pay -off driving piece and set up the second holder on the delivery sheet, pay -off driving piece pass through the delivery sheet and drive the second holder and move for benchmark fixture, make one of them pay -off subassembly to benchmark fixture material loading, and messenger's anot