Cutting edge structure with arc sleeking edge, cutting blade and cutting tool

The utility model relates to a cutting edge structure with an arc sleeking edge, a cutting blade and a cutting tool, and the cutting edge structure with the arc sleeking edge comprises a main cutting edge and the arc sleeking edge, a tool nose arc is arranged between the main cutting edge and the arc-shaped sleeking edge; one end of the arc-shaped sleeking edge is tangent to the arc of the tool nose; in the using process, when the cutting edge of the cutting edge structure deviates from the cutting direction in the machining process, namely, a certain included angle is formed between the cutting edge and the machining face, due to the structural design of the arc-shaped sleeking edge, the arc sleeking edge and the arc sleeking edge of the cutting edge structure are not prone to falling off, and therefore the cutting edge is not prone to falling off. The arc-shaped sleeking edge can be kept to be attached to the auxiliary machining face, and therefore the surface machining quality is guaranteed. 本实用新型涉及一种具有圆弧修