Numerical control lathe

A numerically controlled lathe aims to solve the problem of low lubricating efficiency. According to the technical scheme, a bed body comprises a rear baffle, a self-lubricating structure is arranged in a sliding block and comprises a liquid storage tank and a liquid drainage structure, an opening is formed in the bottom of the liquid storage tank, the liquid drainage structure comprises an outer shell and an inner ball, a pipeline is arranged on the outer shell, a spherical groove is formed in the inner wall of the pipeline, and the inner ball rotates in the spherical groove. A channel is formed in the inner ball, the channel corresponds to the pipeline in position and is equal to the pipeline in size, a rotating rod is fixed to the outer surface of the inner ball, the center line of the rotating rod is perpendicular to the center line of the channel, the other end of the rotating rod penetrates out of the outer shell and the sliding block and is fixedly provided with a gear, and a strip-shaped groove used f