High-precision structure numerical control machine tool with cooling function

The high-precision structure numerical control machine tool with the cooling function comprises a machine body, a control box, a main shaft box, a main shaft, a workbench and a main shaft heat dissipation box, the main shaft penetrates through the main shaft heat dissipation box, a first cooling pipe is arranged in the main shaft heat dissipation box and wound around the main shaft, a cutting fluid mixing box is further arranged in the main shaft heat dissipation box, and a second cooling pipe is arranged in the cutting fluid mixing box. The cutting fluid mixing box is provided with a fluid inlet pipe and a fluid outlet pipe, the fluid outlet pipe extends to the position below the spindle heat dissipation box and is connected with an annular pipe, the annular pipe is connected with a cutting fluid nozzle, a first connecting pipe is communicated between the first cooling pipe and the cutting fluid mixing box, and a flow adjusting valve is arranged on the first connecting pipe. The main shaft heat dissipation b