Multifunctional cutting insert and tool

Abstract

The invention discloses a multifunctional cutting insert and a tool, the cutting insert comprises a set square-shaped cutting insert body enclosed by an upper surface, a lower surface and three side surfaces for connecting the upper surface and the lower surface, the upper surface and the lower surface have same structure, the upper surface and the lower surface are composed of a plane and front insert surfaces, three side surfaces and each front insert surface are intersected to form three pair of cutting edge groups which are uniformly distributed at the edge of the cutting insert body, the cutting edge groups are composed of a main cutting edge, an auxiliary cutting edge and an angle cutting edge for connecting the main cutting edge and the auxiliary cutting edge, an included angle alpha of a projection line of the main cutting edge and the auxiliary cutting edge on a plane is in a range of greater or equal to 85 DEG and less than or equal to 95 DEG C, the auxiliary cutting edge is a protruding arc-shaped cutting edge, and the main cutting edge and the auxiliary cutting edge are intersected with the plane. The tool comprises a tool body, at least one tool groove is arranged on the tool body, and the multifunctional cutting insert is fixedly arranged in the tool groove through a fastener. The multifunctional cutting insert and the tool can be used for processing a step surface with 90 DEG and can be used for rapid feeding processing.

Description

technical field [0001] The invention relates to a milling blade and a cutter, in particular to a multifunctional milling blade and a cutter. Background technique [0002] During the milling process, when machining the step structure perpendicular to the plane and the side base surface, in order to avoid the interference between the tool and the side, the main cutting edge on the side of the tool and the minor cutting edge on the end face are required to be basically vertical. Cutting inserts are widely used in grooving and step surface processing of workpieces. [0003] In the milling process, in order to improve the cutting efficiency, the insert is required to have a higher cutting speed or cutting feed or cutting depth. Since increasing the cutting speed will quickly reduce the life of the cutting insert, the application is subject to greater constraints; although the large cutting depth can be relatively Greatly improves the cutting efficiency, but during the processing...

AI Technical Summary

Problems solved by technology

[0004] Due to the big difference in cutting between 90° step milling cutter and high feed milling cutter, the cutting inserts of these two types of milling cutters are generally not common

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