Knife rest guide rail for center-moving type numerical control lathe

The utility model discloses a tool rest guide rail for a center-moving type numerical control lathe, which belongs to the technical field of numerical control lathes and is characterized in that the surface of a guide rail body is in rolling connection with a connecting seat, a left roller and a right roller which are symmetrical, a clamping groove is formed in the center of the connecting seat, and the inner wall of the clamping groove is rotatably connected with a supporting ball; according to the tool rest guide rail for the center-moving type numerical control lathe, the moving position of the connecting base can be firmly fixed through the left roller, the right roller, the left guide strip and the right guide strip which are symmetrical, abrasion is reduced, lubricating oil does not need to be added, and the tool rest guide rail for the center-moving type numerical control lathe is simple in structure, convenient to use and high in practicability. The use cost of the guide rail is greatly reduced, the c