Corner cutting device for outer frame of wide filter

The utility model relates to the technical field of filter outer frame machining, in particular to a wide filter outer frame corner cutting device which comprises a saw blade and a machining table, the saw blade is provided with a driving part for driving the saw blade to rotate, the machining table is obliquely arranged, and the machining table and the driving part are arranged to horizontally move in the direction perpendicular to the axis of the saw blade; an abutting edge is arranged on the machining table, and one side, in the length direction, of the outer frame abuts against the abutting edge to limit the machining posture of the outer frame; a pressing strip is hinged to one side of the machining table and covers the machining table in the width direction, and a plurality of pressing pieces are arranged on the pressing strip in the length direction of the pressing strip. The outer frame can be placed on the whole breadth of the machining table, and the pressing strips covering the width direction of t