CN206122778U

CN206122778U - Cutting round nose milling cutter

Info

Publication number: CN206122778U
Application number: CN201621198137.3U
Authority: CN
Inventors: 夏步月; 王焱庆
Original assignee: Guangdong Vibration Cnc Tools Co Ltd
Current assignee: Guangdong Vibration Cnc Tools Co Ltd
Priority date: 2016-11-04
Filing date: 2016-11-04
Publication date: 2017-04-26
Anticipated expiration: 2026-11-04

Abstract

The utility model relates to a cutting round nose milling cutter, which comprises a body, be equipped with four cutting edges on the lateral wall of the one end of body, be close to the end of body on the cutting edge and locate to the fillet cutting edge, four cutting edges are heliciform evenly distributed, and the blade of every cutting edge and the distance of body axis are the radius of body, are equipped with cutting groove between two adjacent cutting edges, and every cutting groove is the heliciform and distributes, one section that is close to the fillet cutting edge on cutting groove's the groove face is equipped with secondary notch, secondary notch's length is the half of cutting edge length, secondary notch's groove face is body radial 40%~50% with the distance of body axis, circular arc butt joint between secondary notch's groove face and cutting groove's the groove face. The utility model discloses both had guaranteed that milling cutter had very big appearance and cuts the space, had guaranteed self intensity of body moreover, can not lead to in the course of working cutter warp with the phenomenon emergence of breaking to practice thrift ample resources and cost.

Description

One kind cutting round nose milling cutter

Technical field

This utility model is related to milling cutter technical field, more particularly to a kind of cutting round nose milling cutter.

Background technology

The processing of round nose milling cutter of the prior art is mainly based on roughing, and efficiency is mainly particular about in roughing, by Hold in present milling cutter and cut limited space, common normal cutting can only be met and used, once cutting width and cutting-in using big, hold Cut space just not much of that, be easy for generation card and cut, squeeze and cut, accumulate and cut the phenomenons such as tumor, ultimately result in cutting edge roundness and collapse scarce, cutter life Shorten, premature failure.If using undersized core thickness diameter, it is ensured that big appearance cuts space, but the intensity of cutter itself Again not enough, cutter can be caused in process to have deformation, gently then there are deformation, heavy then breaking in the type face of converted productss.

Utility model content

In view of this, it is necessary to provide one kind prevent card cut, squeeze cut, product cuts the phenomenons such as tumor, and prevents cutter from having change The cutting round nose milling cutter of shape or breaking phenomenon.

This utility model is achieved in that a kind of cutting round nose milling cutter, including body, the side wall of one end of the body Four blades are provided with, the end of close body is fillet blade on blade, and four blades are uniformly distributed in the shape of a spiral, The cutting edge of each blade is the radius of body with the distance of body axis, is provided with cutting slot between two adjacent blades, often Individual cutting slot is distributed in the shape of a spiral, and a section on the groove face of the cutting slot near fillet blade is provided with secondary groove, the secondary groove Length is 1/2nd of edge length, and the groove face of the secondary groove is the 40% ~ 50% of body radius with the distance of body axis, Circular arc is docked between the groove face of secondary groove and the groove face of cutting slot.

Further, the groove face of the cutting slot and the distance of the body axis are the 60% ~ 65% of body radius.

Further, the length of the blade is 2.5 times of the diameter of body.

The advantage of a kind of cutting round nose milling cutter that this utility model is provided is：This utility model is simple and reasonable, leads to Cross and secondary groove is being set near one section of fillet blade on the groove face of cutting slot, the length of the secondary groove is two points of edge length One of, the groove face of the secondary groove is the 40% ~ 50% of body radius with the distance of body axis, groove face and the cutting of the secondary groove Circular arc docking between the groove face of groove, it is ensured that there is milling cutter very big appearance to cut space, so as to be not in during use Card is cut, squeezes and cut, accumulate and cut the phenomenons such as tumor, and the groove face of cutting slot is arranged on body radius with the distance of the body axis 60% ~ 65%, so as to ensure that the self-strength of body, it is not result in that cutter distortion and the phenomenon of breaking are sent out in process It is raw, so as to save ample resources and cost.

Description of the drawings

Fig. 1 is a kind of structural representation of cutting round nose milling cutter of this utility model.

Specific embodiment

In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain This utility model, is not used to limit this utility model.

Fig. 1 is referred to, Fig. 1 is a kind of structural representation of cutting round nose milling cutter of this utility model.

A kind of cutting round nose milling cutter, including body 10, the side wall of one end of the body 10 is provided with four blades 11, the end of close body 10 is fillet blade 11a on blade 11, and four blades 11 are uniformly distributed in the shape of a spiral, often The cutting edge of individual blade 11 is the radius of body 10 with the distance of the axis of body 10, and between two adjacent blades 11 cutting is provided with Groove 12, each cutting slot 12 is distributed in the shape of a spiral, and a section on the groove face of the cutting slot 12 near fillet blade 11a is provided with pair Groove 13, the length of the secondary groove 13 is 1/2nd of the length of blade 11, groove face and the axis of body 10 of the secondary groove 13 Distance is the 40% ~ 50% of the radius of body 10, and circular arc is docked between the groove face and the groove face of cutting slot 12 of the secondary groove 13.

The groove face of the cutting slot 12 is the 60% ~ 65% of the radius of body 10 with the distance of the axis of the body 10.

The length of the blade 11 is 2.5 times of the diameter of body 10.

This utility model is simple and reasonable, by arranging secondary near one section of fillet blade on the groove face of cutting slot Groove, the length of the secondary groove is 1/2nd of edge length, and the groove face of the secondary groove is body with the distance of body axis The 40% ~ 50% of radius, circular arc is docked between the groove face of secondary groove and the groove face of cutting slot, it is ensured that milling cutter has very big appearance Cut space, so as to be not in during use card cut, squeeze cut, product cut the phenomenons such as tumor, and groove face and the institute of cutting slot The distance for stating body axis is arranged on the 60% ~ 65% of body radius, so as to ensure that the self-strength of body, in the course of processing In be not result in that the phenomenon of cutter distortion and breaking occurs, so as to save ample resources and cost.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit this utility model Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model Protection domain within.

Claims

1. a kind of cutting round nose milling cutter, including body（10）, it is characterised in that the body（10）The side wall of one end be provided with Four blades（11）, blade（11）Upper close body（10）End be fillet blade（11a）, four blades（11）It is in Helical form is uniformly distributed, each blade（11）Cutting edge and body（10）The distance of axis is body（10）Radius, it is adjacent Two blades（11）Between be provided with cutting slot（12）, each cutting slot（12）It is distributed in the shape of a spiral, the cutting slot（12）'s Near fillet blade on groove face（11a）One section be provided with secondary groove（13）, the secondary groove（13）Length be blade（11）Length 1/2nd, the secondary groove（13）Groove face and body（10）The distance of axis is body（10）The 40% ~ 50% of radius, it is described Secondary groove（13）Groove face and cutting slot（12）Groove face between circular arc docking.

2. one kind according to claim 1 cuts round nose milling cutter, it is characterised in that the cutting slot（12）Groove face and institute State body（10）The distance of axis is body（10）The 60% ~ 65% of radius.

3. one kind according to claim 1 cuts round nose milling cutter, it is characterised in that the blade（11）Length be body （10）2.5 times of diameter.