Lost foam casting mould installation structure and installation method thereof

The invention provides a lost foam casting mould installation structure, and belongs to the technical field of lost foam casting moulds. The lost foam casting mould installation structure comprises aforming machine frame (1), an upper mould (2), a lower mould (3) and a mould locking part (4), the forming machine frame (1) comprises a movable plate (5) and a working table (6), the working table (6) is arranged below the movable plate (5), a mould arrangement cavity (7) is formed between the movable plate (5) and the working table (6), a plurality of upper connecting pins (8) are arranged on the side surface of the upper mould (2) along the periphery of the side surface of the upper mould (2), and lower connecting pins (9) are arranged on the side surface of the lower mould (3) along the periphery of the side surface of the lower mould (3), wherein the number and position of the lower connecting pins (9) correspond to that of the upper connecting pins (8) one to one. The lost foam casting mould installation str