Numerical control punching machine capable of achieving accurate punching

The utility model discloses a numerical control punching machine capable of achieving accurate punching, and relates to the technical field of numerical control punching machines. Comprising a base and an operation table arranged at the top of the base, a punching device is arranged at the top of the operation table, a clamping assembly and a limiting assembly are arranged in the operation table, the clamping assembly comprises a transverse plate, a sliding groove is formed in the transverse plate, and the transverse plate is fixed to the inner wall of the operation table; a clamping plate is slidably mounted on the inner side of the sliding groove in the transverse plate. The clamping assembly is matched with the limiting assembly, when a metal plate is placed on the operation table, a control rod is pressed downwards, the control rod drives a sliding plate to move downwards, a clamping rod relieves limiting of a clamping plate, and the clamping plate rapidly moves towards the center of the operation table u