Full-automatic punching apparatus for PCB hard board

The invention relates to the field of perforating devices for circuit boards, and in particular, to a full-automatic punching apparatus for a PCB hard board. The full-automatic punching apparatus comprises a rotating mechanism, a linear driving mechanism, mounting racks, a turnover mechanism, a first clamping mechanism, a second clamping mechanism, a third clamping mechanism, and a punching mechanism, wherein the rotating mechanism is mounted on a frame; the linear driving mechanism is mounted on the rotating mechanism; a pair of the mounting racks is provided and is arranged on the linear driving mechanism; the turnover mechanism is rotatably mounted on the mounting racks; the first clamping mechanism is mounted on the turnover mechanism; the second clamping mechanism is mounted on the first clamping mechanism, and the moving direction of a working end is mutually perpendicular to the driving direction of the linear driving mechanism; the third clamping mechanism is mounted on the turnover mechanism; and the