Casting process of large diesel engine cylinder body

The invention discloses a casting process of a large diesel engine cylinder body. The casting process comprises the following steps: manufacturing a sand box and a sand core; a lower box is placed on the supporting frame through a box overturning shaft, an anti-overturning support is installed at the bottom of the lower box, core setting operation is carried out, and a crankshaft cavity sand core part and a cylinder sleeve box sand core part are in a horizontal state; hoisting the upper box to the lower box, carrying out mold closing operation, and fastening the upper box and the lower box; the anti-overturning support is disassembled, the sand box is overturned, the crankshaft cavity sand core part is located at the top of the sand box, and the cylinder sleeve box sand core part is located at the bottom of the sand box; a pouring cup is installed, the molding process is completed, and casting operation is conducted; and casting operation is completed to obtain a casting. According to the casting process prov