Automatic feeding device for mechanical part machining

The automatic feeding device for mechanical part machining comprises a belt conveyor, a first fixing table, a second fixing table and a machining table which are sequentially arranged, a connecting column is movably arranged in the first fixing table, the end of the connecting column is fixedly connected with a supporting plate, a groove is formed in the first fixing table, and the second fixing table is fixedly connected with the supporting plate. A groove is formed in the second fixing table, the supporting plate corresponds to the groove, a rotating shaft is rotationally installed on the second fixing table, a first connecting plate is installed at the end of the rotating shaft, two sets of pneumatic suction nozzles are arranged at the lower end of the first connecting plate, and the pneumatic suction nozzles and the supporting plate are arranged in an aligned mode. According to the feeding device, the feeding efficiency is improved to a certain extent, the straightening mechanism is additionally arranged,