Indexable helical vertical milling cutter

Abstract

The invention discloses a novel indexable helical vertical milling cutter, which comprises a replaceable end head, an end cover locking bolt, a cutter body, end tooth blades, circumference tooth blades and blade pressing screws, wherein a 7:24 conical handle is arranged at the tail of the cutter body, a thread hole is formed in the end surface of the tail part of the cutter body; six right-handled helical cutting teeth are arranged at the front end of the cutter body; four circumference tooth blades are uniformly distributed on each cutting tooth; the circumference tooth blades are fixed on the helical cutting teeth of the cutter body through the blade pressing screws; another six right-handled helical cutting teeth, the helical degrees of which are the same with that of the helical cutting teeth of the cutter body, are arranged on the replaceable end head; two end tooth blades are uniformly distributed on each cutting tooth; the end tooth blades are fixed on the helical cutting teeth of the replaceable end head through the blade pressing screws; the replaceable end head is positioned by clamping a convex key with the groove of the cutting body and is fixed at the front end surface of the cutter body through the end cover locking bolt. The blades of the end head can be conveniently replaced; the milling cutter is suitable for rough machining of large forging and casting pieces of heavy equipment.

Description

Technical field: [0001] The invention relates to the technical field of machining tools, in particular to an indexable helical end mill. Background technique: [0002] End mills are mainly used on vertical milling machines to process grooves and step surfaces, and can also use profiles to process forming surfaces. The cutting teeth on the circumference of the end mill are peripheral teeth, and the cutting teeth on the end face are end teeth. End mills The end teeth of the end teeth are easily damaged, and how to improve the service life of the end teeth is an urgent problem to be solved. Invention content: [0003] The purpose of the present invention is to propose an improvement plan for the problems of insufficient end tooth strength and low service life of the existing end mills. The blade and the end-tooth blade adopt different square blades, the cutting tool is sharp and light, and can be used by ordinary CNC milling machines, which effectively improves the service l...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose an improvement plan for the problems of insufficient end tooth strength and low service life of the existing end mills. The blade and end-tooth blade adopt different square blades. The cutting tool is sharp and light. It can be used by ordinary CNC milling machines, which effectively improves the service life of the tool.

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