Tool rest feeding mechanism for numerical control lathe

The utility model belongs to the technical field of numerical control lathes, and particularly relates to a tool rest feeding mechanism for a numerical control lathe, which comprises a workbench, a fixing plate is fixedly connected to the rear position of the top of the workbench, and a transverse plate is fixedly welded to the top of the front face of the fixing plate. When the cutting knife is just in contact with the part, the part extrudes the cutting knife, the driving box drives the movable rod to slide upwards in the inner cavity of the cylinder, the movable rod drives the pulley to slide to extrude the driving block, the driving block drives the sliding cylinder to slide on the outer surface of the sliding column to extrude the compression spring, and the compression spring supports the sliding cylinder under counter-acting force; by means of the structure, the buffering box has the advantages that when the cutter is used for machining parts, the buffering performance is improved, and resource waste c