Machine tool product feeding device with stored material automatic detection function

The invention relates to the technical field of machine tool machining, and discloses a machine tool product feeding device with a stored material automatic detection function. Comprising a bottom plate and further comprises a ground rail arranged at the top of the bottom plate, a plurality of feeding trolleys used for storing blank materials are arranged at the top of the ground rail, and the top of the ground rail is fixedly connected with a rack; workpieces can be stored through the feeding trolleys, the number of the feeding trolleys can be properly increased or decreased according to the number of the machine tools and the field, each machine type can be independently placed on each feeding trolley, and the feeding trolleys correspond to the machine tools, so that the number of the machine tools can be increased or decreased, and the number of the machine tools can be increased or decreased according to the number of the machine tools. Negative pressure air is opened through the electromagnetic valve, th