Workpiece punching and positioning device

The utility model relates to the technical field of punching, and discloses a workpiece punching and positioning device which solves the problems that in the prior art, workpiece punching and positioning are not accurate, and machining efficiency is low, the workpiece punching and positioning device comprises a base, a movable platform and flat tongs, and the flat tongs are driven by the movable platform to linearly move on a sliding rail. The movable platform is arranged on the base, the limiting nuts are arranged on the two sides of the movable platform, so that it is guaranteed that the flat tongs do not have movement deviation, deviation of workpiece punching is prevented, meanwhile, the first scale ruler and the second scale ruler are arranged on the side edges of the base and the movable platform correspondingly, and the moving distance of the movable platform each time can be accurately judged through the two scale rulers; and therefore, the precision of the punching distance of the workpiece is guaran