Supporting structure for automatic stock bin tool trays

The invention provides a supporting structure for automatic stock bin tool trays. The supporting structure mainly comprises an aluminum profile, strong angle pieces, the tool trays, polyethylene wear-resistant plates, chain wheels, a transmission chain, chain auxiliary plates and connecting pin shafts; and the aluminum profile and the strong angle pieces mutually cooperate to form an aluminum profile frame, the polyethylene wear-resistant plates are fixed in a groove of the aluminum profile frame to form a sliding rail of the tool trays, the transmission chain is installed on the chain wheels,the chain auxiliary plates are arranged on the transmission chain, and the tool trays are fixed to the chain auxiliary plates through the connecting pin shafts. According to the supporting structure,the chain is driven by the chain wheels to rotate, so that the tool trays slide on the sliding rail, and the supporting structure has the advantages of being simple in structure, low in cost, small in friction coefficient, lo