The invention relates to the technical field of
numerical control lathes, in particular to a
numerical control lathe for hardware
machining, which comprises a lathe body, the lathe body specifically comprises a spindle box, a drilling
assembly is arranged in the spindle box, the drilling
assembly comprises a tool rest and a drilling tool, the tool rest is used for mounting and fixing the drilling tool, and the drilling tool is used for drilling hardware; a limiting groove is formed in the outer wall of the drilling tool, an adjusting
assembly is rotationally connected into the limiting groove, and a plurality of
chip breaking blades are arranged on the outer wall of the adjusting assembly and used for
cutting off long chips. A cavity is formed in the tool rest, and an auxiliary assembly is installed in the cavity and used for being in auxiliary fit with the
chip breaking blade. When hardware is drilled, a mounting plate is retracted into a limiting groove under the elastic action of a connecting spring, the mounting plate drives a
chip breaking blade to rotate into the hardware along with a drilling tool, long chips are
cut off by the chip breaking blade while the hardware is drilled, and the winding problem caused by too long chips is avoided.