Plate edge trimmer

The utility model relates to the technical field of plate processing, and discloses a plate edge trimmer which comprises a base, a control panel and a dust collection device are installed on the outer side of the base, two sets of symmetrical second lifting rails are fixed to the base, second sliding blocks are connected into the two sets of second lifting rails in a sliding mode, and hydraulic cylinders are fixed into the second lifting rails. The movable end of the hydraulic cylinder is fixed to the bottom of the second slider. According to the plate edge trimming machine, the first connecting frame and the second connecting frame are slidably connected to the bottom frame and the top frame correspondingly, so that the positions of the first connecting seat and the second connecting seat can be flexibly controlled conveniently, the position of the positioning clamp frame is adjusted according to the area of a plate, and the plate is clamped and fixed in cooperation with the limiting frame; and the front, ba