CN204997127U

CN204997127U - Molding cutter

Info

Publication number: CN204997127U
Application number: CN201520775368.5U
Authority: CN
Inventors: 李伟秋
Original assignee: Guangzhou Huizhuan Tools Co Ltd
Current assignee: Conprofe Technology Group Co Ltd; Smartguy Intelligent Equipment Co Ltd Guangzhou Branch
Priority date: 2015-09-30
Filing date: 2015-09-30
Publication date: 2016-01-27
Anticipated expiration: 2025-09-30

Abstract

The utility model provides a molding cutter, including blade disc and handle of a knife, the handle of a knife sets firmly on the axial lead at blade disc middle part, evenly seted up 4 edges of a knife on the blade disc, every the plumb line direction of the axial lead of edge of a knife edge blade disc is the gradually angle of release degree at 60 degrees angles, every the rigid coupling has the diamond and forms the cutting edge on the medial surface of the edge of a knife, outer end facial height in the outer terminal surface of the edge of a knife of diamond. The utility model discloses molding cutter through evenly seted up 4 edges of a knife on the blade disc and on the edge of a knife welding diamond form the cutting edge, the arc contour accuracy of the cell -phone casing of processing is high, makes the exquisite and save material of this molding cutter structure through every edge of a knife along the structural design that the plumb line direction of the axial lead of blade disc is the gradually angle of release degree at 60 degrees angles.

Description

A kind of forming cutter

Technical field

The utility model relates to a kind of cutter, particularly relates to a kind of forming cutter.

Background technology

Forming cutter is used to process the special tool that non-forming face not in place could not be processed or process to plain cutter.Forming cutter is applied to the various non-ferrous metal of high-speed cutting, nonmetal, and particularly, particularly, forming cutter is used for the chamfering of processing mobile phone housing or curved profile.Current forming cutter is when the curved profile of processing mobile phone surface of shell, and edge wear is large, and the curved profile precision on the handset shell surface after processing is low; Secondly, this forming cutter structure bulky, waste material.

Summary of the invention

In view of the above, the utility model is necessary to provide that a kind of processing mobile phone housing curved profile precision is high, the forming cutter of delicate structure.

The technical scheme that the utility model provides is as follows: a kind of forming cutter, comprise cutterhead and handle of a knife, described handle of a knife is installed on the axial line in the middle part of cutterhead, described cutterhead evenly offers 4 edges of a knife, each described edge of a knife is the involuted angle degree at 60 degree of angles along the vertical line direction of the axial line of cutterhead, the medial surface of each described edge of a knife is connected with diamond and forms blade, described adamantine outer face is higher than the outer face of the edge of a knife.

Further, the top end face of described cutterhead is also installed with a top along the direction of axis line of cutterhead, described top comprises the top of cone-shaped structure and is integrally formed in the bottom of cylindrical-shaped structure of headstage ground, the top of the cone-shaped structure of described top offers draw-in groove, be installed with arc shape diamond in described draw-in groove, the bottom diameter of the cylindrical-shaped structure of described top is 5mm.

Further, the top end face of described cutterhead distributes to bottom face along involute, and the bottom face diameter of described cutterhead is 29mm.

Further, described handle of a knife is the cylindrical rod-like structure that diameter is 16mm, length is 44mm.

Further, described in be installed in the handle of a knife of cutterhead bottom one end form the rounding of 1mm, the other end of described handle of a knife offers the chamfering of 1mm × 45 degree.

Compared with prior art, the utility model forming cutter forms blade by evenly offering 4 edges of a knife and weld diamond on cutterhead on the edge of a knife, the curved profile precision of handset shell of processing is high, and the structural design be the involuted angle degree at 60 degree of angles along the vertical line direction of the axial line of cutterhead by each edge of a knife makes this forming cutter delicate structure and saving material.

Accompanying drawing explanation

Fig. 1 is the front view of the utility model forming cutter;

Fig. 2 is the side view of the utility model forming cutter.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually, below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.

Refer to shown in Fig. 1, a kind of forming cutter, comprise cutterhead 10 and handle of a knife 20, handle of a knife 20 is installed on the axial line in the middle part of cutterhead 10.

The top end face of cutterhead 10 distributes to bottom face along involute, and the bottom face diameter of cutterhead 10 is 29mm.

Consult Fig. 2, cutterhead 10 evenly offers 4 edges of a knife 11, each edge of a knife 11 is the involuted angle degree at 60 degree of angles along the vertical line direction of the axial line of cutterhead 10, the medial surface of each edge of a knife 11 offers groove (not shown), be connected with diamond 12 in groove and form blade, in order to the curved profile of processing mobile phone surface of shell.Particularly, diamond 12 is welded in the groove on the medial surface of the edge of a knife 11, and in conjunction with consulting Fig. 1, the outer face of diamond 12 is higher than the outer face of the edge of a knife 11.

The top end face of cutterhead 10 is also installed with a top 13 along the direction of axis line of cutterhead 10, in order to lean handset shell, ensures the concentricity of processing mobile phone housing curved profile, improve the machining accuracy of handset shell.Top 13 comprises the top of cone-shaped structure and is integrally formed in the bottom of cylindrical-shaped structure of headstage ground, the bottom diameter of the cylindrical-shaped structure of top 13 is 5mm, the top of the cone-shaped structure of top 13 offers draw-in groove (not shown), is installed with arc shape diamond 14 in draw-in groove.

Adopt adamantine benefit: 1. adamantine hardness can reach 8000HV, be 8-12 times of carbide alloy;

2. adamantine thermal conductivity factor is 700W/mK, and be 1.5-9 times of carbide alloy, even higher than PCBN and copper, therefore the transmission of diamond cutter heat is rapid;

3. adamantine coefficient of friction is generally only 0.1-0.3 (coefficient of friction of carbide alloy is 0.4-1), and therefore diamond cutter significantly can reduce cutting force;

4. adamantine thermal coefficient of expansion is only 0.9 × 10 ^-6-1.18 × 10 ^-6, be only equivalent to 1/5 of carbide alloy, therefore diamond cutter thermal deformation is little, and machining accuracy is high;

5. diamond cutter and the affinity between non-ferrous metal and nonmetallic materials very little, in process, chip does not form built-up edge on point of a knife.

Handle of a knife 20 is installed on the axial line in the middle part of cutterhead 10, handle of a knife 20 adopts carbon tool steel to make, consult Fig. 1, handle of a knife 20 for diameter be 16mm, length is the cylindrical rod-like structure of 44mm, the one end being installed in the handle of a knife 20 of cutterhead 10 bottom forms the rounding of 1mm, and the other end of handle of a knife 20 offers the chamfering of 1mm × 45 degree.

During the curved profile of forming cutter processing mobile phone surface of shell, lathe drives handle of a knife 20 to rotate, and cutterhead 10 is along with rotation, blade on cutterhead 10 is at handset shell Surface Machining curved profile, diamond 12 hardness on blade is large, and wear extent is little, and the precision of the curved profile on handset shell surface is high.

In sum, the utility model forming cutter forms blade by evenly offering 4 edges of a knife and weld diamond on cutterhead on the edge of a knife, the curved profile precision of handset shell of processing is high, and the structural design be the involuted angle degree at 60 degree of angles along the vertical line direction of the axial line of cutterhead by each edge of a knife makes this forming cutter delicate structure and saving material.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. a forming cutter, comprise cutterhead (10) and handle of a knife (20), described handle of a knife (20) is installed on the axial line at cutterhead (10) middle part, it is characterized in that: described cutterhead (10) evenly offers 4 edges of a knife (11), each described edge of a knife (11) is the involuted angle degree at 60 degree of angles along the vertical line direction of the axial line of cutterhead (10), the medial surface of each described edge of a knife (11) is connected with diamond (12) and forms blade, the outer face of described diamond (12) is higher than the outer face of the edge of a knife (11).

2. forming cutter according to claim 1, it is characterized in that: the top end face of described cutterhead (10) is also installed with a top (13) along the direction of axis line of cutterhead (10), described top (13) comprises the top of cone-shaped structure and is integrally formed in the bottom of cylindrical-shaped structure of headstage ground, the top of the cone-shaped structure of described top (13) offers draw-in groove, be installed with arc shape diamond (14) in described draw-in groove, the bottom diameter of the cylindrical-shaped structure of described top (13) is 5mm.

3. forming cutter according to claim 1, is characterized in that: the top end face of described cutterhead (10) distributes to bottom face along involute, and the bottom face diameter of described cutterhead (10) is 29mm.

4. forming cutter according to claim 1, is characterized in that: described handle of a knife (20) for diameter be 16mm, length is the cylindrical rod-like structure of 44mm.

5. forming cutter according to claim 4, it is characterized in that: described in be installed in the handle of a knife (20) of cutterhead (10) bottom one end form the rounding of 1mm, the other end of described handle of a knife (20) offers the chamfering of 1mm × 45 degree.