High-precision transmission device for robot

The utility model relates to the technical field of transmission devices, in particular to a high-precision transmission device for a robot, which is characterized in that a transmission cavity is formed in a box body, a heat dissipation groove is formed in one side of the box body, a transmission assembly is arranged in the transmission cavity, and an isolation screen is mounted in the transmission cavity and positioned below the transmission assembly; a liquid discharging pipe is installed at the inner bottom of the transmission cavity, and the transmission cavity is filled with lubricating liquid. The transmission assembly is simple in structure and novel in design, abrasion of the transmission assembly in the transmission process is reduced through the lubricating liquid filled in the transmission cavity, the service life of equipment is prolonged, the lubricating liquid in the transmission cavity is pumped into the heat dissipation pipe through the arrangement of the water pump and the liquid drainage pi