CN208146982U

CN208146982U - Cold quadravalence bores compound tool in a kind of Integral alloy

Info

Publication number: CN208146982U
Application number: CN201820338539.1U
Authority: CN
Inventors: 刘新平; 王建峰; 韩会斌; 吴立谦
Original assignee: HEBEI GAOGONG TOOL CO Ltd
Current assignee: HEBEI GAOGONG TOOL CO Ltd
Priority date: 2018-03-13
Filing date: 2018-03-13
Publication date: 2018-11-27
Anticipated expiration: 2028-03-13

Abstract

The utility model relates to quadravalences cold in a kind of Integral alloy to bore compound tool, including cutter hub, cutter hub includes knife handle and cutter head, the knife handle and cutter head are structure as a whole, the knife handle and cutter head are ladder-like, the stepped locations of the ladder-like cutter head are along the circumferential direction installed there are four cutting tip, and it is uniformly distributed, the end face of opposite two teeth of the cutting edge of 4 blades guarantees in the same plane, guarantee cutter stress balance when cutting, improve cutting precision, the blade for processing diameter by being equipped with several layers difference on cutter hub, the processing of stepped hole can once be completed, it ensure that the concentricity of Kong Yukong well, and guarantee the depth in each hole, cooling medium sprocket hole is equipped with inside cutter hub, save process time, improve machining accuracy, it greatly improves work efficiency.

Description

Cold quadravalence bores compound tool in a kind of Integral alloy

Technical field

The utility model relates to field of machining, in particular to cold quadravalence bores compound tool in a kind of Integral alloy.

Background technique

With the development of machinery industry, user is to the processing quality of engineering goods, process reliability, delivery date of cutter etc. Requirements at the higher level are proposed, the cutter head that the machining of general stepped hole requires replacement different-diameter is process, thus not It can guarantee the concentricity in hole well, and the time as consumed by tool changing causes processing efficiency low.

Utility model content

In order to solve the defects of prior art with deficiency, the utility model embodiment provided cold four in a kind of Integral alloy Rank bores compound tool.

The technical solution is as follows：Cold quadravalence bores compound tool in a kind of Integral alloy, including cutter hub, the cutter hub include Knife handle and cutter head, the knife handle and cutter head are structure as a whole, the knife handle and cutter head be it is ladder-like, the ladder-like cutter head is equipped with Several ladders are equipped with several groups cutting tip, every group of bite in the endface position of the cutter head and the stepped locations The number of piece has several and is even number, is distributed uniformly and circumferentially, opposite two cutting edges of every group of cutting tip The end face of tooth in the same plane, guarantees cutter stress balance when cutting, improves cutting precision, the blade and cutter hub end face Vertical angle is 8 °, and the ligament width of the sword tooth of the cutting tip is 0.2-0.25mm, and relief angle is 10 °；

The angle of ladder gradient and horizontal plane on the cutter head is 20 °；

The inner hub location of the cutter hub is equipped with cooling medium sprocket hole, and the sprocket hole is through the logical of entire cutter hub Hole, or point hole being provided on cooling medium sprocket hole towards the position of every group of cutting tip is equipped in the center.

Preferably, the ladder of cutter head is four.

Preferably, cutting tip is four groups, and the number of every group of cutting tip is four.

Preferably, circular runout≤0.01mm of the knife handle to common axis.

Preferably, circular runout≤0.01mm of the cutting edge tooth to common axis.

Preferably, the ligament surface roughness Ra value of cutting edge is not more than 0.1 μm.

Preferably, cutter hub uses hard alloy one-pass molding.

The utility model proposes Integral alloy in cold quadravalence bore compound tool, it is different by being equipped with several layers on cutter hub The blade for processing diameter, can once complete the processing of stepped hole, ensure that the concentricity of Kong Yukong well, and can guarantee each The depth in hole.Multiple tool changing just achievable processing is needed, upgrading to a procedure be can be completed, and save tool change time, Improve product processing quality and working efficiency.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 is that cold quadravalence bores compound tool structural schematic diagram in the Integral alloy provided in the present embodiment；

Fig. 2 is the A of Fig. 1 to partial view.

Specific embodiment

It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type embodiment is described in further detail.

The utility model proposes quadravalences cold in a kind of Integral alloy to bore compound tool, as shown in Figure 1 and Figure 2, including cutter hub 1, Cutter hub includes knife handle 3 and cutter head 2, and knife handle 3 and cutter head 2 are structure as a whole, and knife handle 3 and cutter head 2 are ladder-like, the ladder of cutter head 2 It is four, the angle beta of ladder gradient and horizontal plane is 20 °.On the head of cutter head 2 and the position edge of the first, second, third ladder Circumferencial direction is equipped with four groups of cutting tips, and the number of every group of cutting tip is four and is uniformly distributed, every group of cutting tip Opposite two teeth of cutting edge in the same plane, guarantee cutter stress balance when cutting, cutting precision are improved, inside cutter hub Equipped with cooling medium sprocket hole 4, it is more suitable for high revolving speed cutting.

Cold quadravalence bores compound tool and uses whole hard alloy one-pass molding in Integral alloy provided by the utility model, resists Heat deformability is strong, and using zero helical angle, cutter hub is rigidly good, and in the unchanged situation of cutter manufacture precision, machining accuracy reaches To H7, H8,1 μm of circularity, taper <, the Ra value of surface roughness reaches 0.4 μm hereinafter, reamer processing can be substituted.

This cutter is ground various cutting angles by Digital Program Control, and digital tool microexamination dimensional accuracy reaches 0.1μm。

Important technological parameters when process tool

The ligament surface roughness Ra value of cutting edge is not more than 0.1 μm.

Circular runout≤0.01mm of the shank to common axis.

Circular runout≤0.01mm of the blade part to common axis.

The ligament width L of cutting edge is 0.2-0.25mm, and relief angle δ is 10 °, and the gradient γ of blade end face and horizontal axis is 5 °, the vertical angle α of cutting edge sword tooth and cutter hub end face is 10 °.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims

1. cold quadravalence bores compound tool in a kind of Integral alloy, including cutter hub, the cutter hub include knife handle and cutter head, the knife handle Be structure as a whole with cutter head, which is characterized in that the knife handle and cutter head be it is ladder-like, the ladder-like cutter head is equipped with several ranks Ladder is equipped with several groups cutting tip, the number of every group of cutting tip in the endface position of the cutter head and the stepped locations There are several and be even number, is distributed uniformly and circumferentially, the end face of opposite two cutting edge teeth of every group of cutting tip In the same plane, guarantee cutter stress balance when cutting, improve cutting precision, the vertical angle of the blade and cutter hub end face It is 8 °, the ligament width of the sword tooth of the cutting tip is 0.2-0.25mm, and relief angle is 10 °；

The inner hub location of the cutter hub is equipped with cooling medium sprocket hole, and the sprocket hole is the through-hole through entire cutter hub, Or point hole being provided on cooling medium sprocket hole towards the position of every group of cutting tip is equipped in the center.

2. cold quadravalence bores compound tool in Integral alloy according to claim 1, which is characterized in that the ladder of the cutter head It is four.

3. cold quadravalence bores compound tool in Integral alloy according to claim 1, which is characterized in that the cutting tip is Four groups, the number of every group of cutting tip is four.

4. cold quadravalence bores compound tool in Integral alloy according to claim 1, which is characterized in that the knife handle is to public Circular runout≤0.01mm of axis.

5. cold quadravalence bores compound tool in Integral alloy according to claim 1, which is characterized in that the cutting edge tooth pair Circular runout≤0.01mm of common axis.

6. cold quadravalence bores compound tool in Integral alloy according to claim 1, which is characterized in that the cutting edge it is tough Belt surface roughness Ra value is not more than 0.1 μm.

7. cold quadravalence bores compound tool in Integral alloy according to claim 1, which is characterized in that the cutter hub is using hard Matter alloy one-pass molding.