Multi-point supporting type casting machining tool

The utility model discloses a multi-point supporting type casting machining tool. The multi-point supporting type casting machining tool comprises a tool body and a multifunctional machining mechanism. According to the multi-point supporting type casting machining tool, the supporting column is connected to the bottom end of the tool body, the multifunctional machining mechanism is arranged at the upper end of the tool body, and when the multi-point supporting type casting machining tool needs to be used, a worker places a casting needing to be machined on the tool body, a handle is shaken, and the multi-point supporting type casting machining tool is machined. A handle rotates with a rotating shaft as the circle center, a first rotating gear moves on a first straight tooth, a rotating rod is driven to rotate, a second rotating gear moves on a second straight tooth, clamping plates are driven to be close to each other, two sets of clamps are matched, a casting needing to be machined is fixed, and a worker can