Numerical control follow tool device for lathing slender steps

The utility model provides a numerical control follow tool device for lathing slender steps, belongs to the technical field of shaft part machining, and aims at solving the problems that a traditional tool bit control device needs to be controlled manually, time and labor are wasted, deviation is prone to occurring, a large number of chippings are generated in the machining process, and cleaning is troublesome. Comprising a baseplate; the transverse control mechanism is mounted on the top surface of the bottom plate; the bottom of the pushing device is connected with the transverse control mechanism; the bottom of the vertical sliding mechanism is connected with a pushing device; the cutting head can be controlled to transversely and longitudinally slide, a machining position can be conveniently positioned, meanwhile, the diameter of a machining shaft can be controlled, the device is placed under the machining shaft, chips can be borne, follow-up chip cleaning is facilitated, and the device is simple in struc