Movable telescopic punching device

The utility model relates to a movable telescopic punching device which comprises an installation frame and a guide column assembly, and a driving space is formed between the installation frame and the guide column assembly. And the sliding block slides on the guide column assembly, a driving boss is arranged on one side of the sliding block, and a mounting boss is arranged on the other side of the sliding block. The driving air cylinder is fixed to the mounting frame, at least part of the driving air cylinder is located in the driving space, and an output shaft of the driving air cylinder is connected to the driving boss; and the punching assembly is mounted on the mounting boss and linearly reciprocates along the guide column assembly along with the sliding block. The punching assembly is driven by the driving air cylinder to linearly reciprocate along the guide column assembly, the punching assembly can conduct linkage punching by controlling the driving air cylinder, and the punching control effect is goo