Multi-cutting-edge round nose milling cutter

Abstract

The invention provides a multi-blade round-nose milling cutter which comprises a cutter head part, a plurality of first blades, a plurality of second blades and a plurality of third blades, and the plurality of first blades, the plurality of second blades and the plurality of third blades are uniformly and spirally wound on the cutter head part respectively. The end portion of the first cutting edge, the end portion of the second cutting edge and the end portion of the third cutting edge are mutually staggered, and the multiple cutting edges are evenly arranged on the tool bit part in a mutually staggered mode, so that the abrasion degree of each cutting edge is reduced, and meanwhile smooth chip removal is guaranteed.

Description

technical field [0001] The invention relates to the field of machining tools, in particular to a multi-blade round nose milling cutter. Background technique [0002] The milling cutter is a rotary cutter with one or more cutter teeth. During operation, each cutter tooth cuts off the allowance of the workpiece intermittently. In order to facilitate the discharge of chips and slag, the existing milling cutter reduces the number of cutting edges. However, this will bring greater wear to the cutting edge and reduce the service life, while the existing milling cutter will share the wear pressure by adding more cutting edges, but this will reduce the chip flutes between the cutting edges, resulting in chip evacuation It is not smooth and even affects the milling efficiency. SUMMARY OF THE INVENTION [0003] The main purpose of the present invention is to reduce the wear degree of each cutting edge by adding a plurality of cutting edges in a layered and staggered form on a cutti...

AI Technical Summary

Problems solved by technology

[0002] Milling cutter is used for milling. It is a rotating tool with one or more cutter teeth. When working, each cutter tooth cuts off the allowance of the workpiece intermittently. In order to facilitate the discharge of slag, the existing milling cutter reduces the number of blades. But this will bring greater wear to the cutting edge and reduce the service life, while the existing milling cutter will share the wear pressure by adding more cutting edges, but this will reduce the chip removal groove between the cutting edges, resulting in chip removal Unsmooth, even affect the milling efficiency

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