Main shaft cooling structure for automatic cutting instrument

The utility model relates to the technical field of auxiliary equipment of cutting instruments, and discloses a main shaft cooling structure for an automatic cutting instrument, which is characterized by comprising a base, a cutting instrument body arranged on the top surface of the base, a main shaft body arranged on the cutting instrument body, a sleeve fixedly connected to the cutting instrument body, and the sleeve sleeved on the outer side of the main shaft body. The sleeve is arranged on the main shaft body and rotationally connected with the main shaft body, a first cooling assembly is arranged on the sleeve and used for cooling the main shaft body in the sleeve, and a second cooling assembly is arranged on the cutting instrument body and used for cooling the main shaft body outside the sleeve. The main shaft cooling device is used for cooling a main shaft when the cutting instrument works and prolonging the service life of the main shaft. 本实用新型涉及切削仪辅助设备技术领域，公开了一种自动切削仪用主轴降温结构，其技术方案要点是包括底座，底座顶面上设置有切削仪本体