CN216325414U

CN216325414U - Milling cutter for machining outer contour of mobile phone shell

Info

Publication number: CN216325414U
Application number: CN202122609646.8U
Authority: CN
Inventors: 王习武; 孙学书
Original assignee: Chanqzhou Xixiashu Tool Research Institute Co ltd
Current assignee: Chanqzhou Xixiashu Tool Research Institute Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-04-19
Anticipated expiration: 2031-10-28

Abstract

The utility model discloses a milling cutter for machining the outer contour of a mobile phone shell, which comprises a cutter handle and a cutter head, wherein the cutter head is arranged at the end part of the cutter handle, the cutter head is provided with a plurality of blade mounting grooves which are arranged in a centrosymmetric manner, blades are fixed in the mounting grooves, and the blades are provided with cutting grooves for cutting. The utility model has simple structure, one-time processing and forming around the mobile phone shell, time and labor saving, high production efficiency, smooth transition around the mobile phone shell, comfortable hand feeling and suitability for further popularization and application.

Description

Milling cutter for machining outer contour of mobile phone shell

The technical field is as follows:

the utility model relates to the technical field of cutters, in particular to a milling cutter for machining the outer contour of a mobile phone shell.

Background art:

among the prior art, the requirement of cell phone case outward appearance will be high more and more, and the roughness of original cell phone case processing is difficult once only to reach the requirement, and outside profile dimension required precision guarantees within 0.01mm, need divide thick smart twice processing in most times, need polish after the machining moreover and just can guarantee the requirement.

The utility model has the following contents:

aiming at the problems, the utility model provides the milling cutter which can be processed and formed at one time, is time-saving and labor-saving and has high production efficiency and is used for processing the outer contour of the mobile phone shell.

The utility model is realized by the following technical scheme:

the utility model provides a milling cutter for processing of cell-phone casing outline, includes handle of a knife and tool bit, the tip of handle of a knife is located to the tool bit, the tool bit has a plurality of blade mounting grooves that are central symmetry and set up, and the mounting groove internal fixation has a blade, the blade has the cutting flutes that is used for the cutting, cutting flutes one side plane is the cutting face, and the opposite side plane is the face of weld, the limit sword on the cutting face is the cutting edge, the cutting edge is including left end face cutting edge, left R cutting edge, excircle contour cutting edge, right R cutting edge and the right-hand member face cutting edge that sets gradually.

Preferably, the inner wall of the cutting flute includes a first relief surface and a second relief surface, the first relief surface intersecting the second relief surface.

In order to increase the chip containing space on the premise of ensuring the cutting strength of the blade, the inclination angle of the first rear corner surface is smaller than that of the second rear corner surface.

In order to smooth the surface of the product and to ensure the strength of the insert, the insert is made of PCD diamond material.

In order to facilitate production and manufacture, the knife handle and the knife head are of an integrally formed structure.

In order to prevent the cutter point from being subjected to impact force and causing brittle damage, the inclination angle of the cutting edge is 8-12 degrees.

The utility model has the beneficial effects that: compared with the prior art, the milling cutter for machining the outer contour of the mobile phone shell is simple in structure, the periphery of the mobile phone shell is machined and formed at one time, time and labor are saved, the production efficiency is high, the periphery of the mobile phone shell can be transited smoothly and feels comfortable, and the milling cutter is suitable for further popularization and application.

Description of the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the tool holder of the present invention;

fig. 3 is a schematic view of the blade structure of the present invention.

In the figure: the cutting tool comprises a tool handle 1, a tool blade mounting groove 2, a tool blade 3, a cutting groove 4, a cutting surface 5, a welding surface 6, a left end face cutting edge 7, a left R cutting edge 8, an excircle outline cutting edge 9, a right R cutting edge 10, a right end face cutting edge 11, a first rear corner face 12 and a second rear corner face 13.

The specific implementation mode is as follows:

the following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the utility model.

As shown in fig. 1-3, a milling cutter for processing mobile phone case outline, handle of a knife 1 and tool bit including integrated into one piece, the tip of handle of a knife 1 is located to the tool bit, the tool bit has a plurality of blade mounting grooves 2 that are central symmetry and set up, and the mounting groove internal fixation has and makes blade 3 by PCD diamond material, blade 3 has cutting flutes 4 that are used for the cutting, 4 side planes of cutting flutes are cutting face 5, and the opposite side plane is weld face 6, the limit sword on the cutting face 5 is the cutting edge, the cutting edge is including left end face cutting edge 7, left R cutting edge 8, excircle profile cutting edge 9, right R cutting edge 10 and the right-hand member face cutting edge 11 that sets gradually.

As shown in fig. 3, the inner wall of the cutting flute 4 includes a first rear corner surface 12 and a second rear corner surface 13, the first rear corner surface 12 intersects with the second rear corner surface 13, the inclination angle of the first rear corner surface 12 is smaller than that of the second rear corner surface 13, the small inclination angle of the first rear corner surface 12 can ensure the strength of the blade 3 during cutting, and the large inclination angle of the second rear corner surface 13 can increase the chip containing space;

since a large impact force is applied to the cutting edge at the cutting start point, the cutting edge is inclined at an angle of 10 ° in order to prevent the cutting edge from being brittle and damaged by the impact force.

When the mobile phone shell machining device is used for machining, the milling cutter rotates and mills the periphery of the mobile phone shell in an interpolation feed mode by being matched with a machine tool, one-time machining forming can be achieved, production efficiency is high, surface quality is good, and precision is high.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides a milling cutter for processing of cell-phone casing outline, includes handle of a knife and tool bit, the tip of handle of a knife, its characterized in that are located to the tool bit: the tool bit has a plurality of blade mounting grooves that are centrosymmetric setting, and the mounting groove internal fixation has the blade, the blade has the cutting flutes that is used for the cutting, cutting flutes one side plane is the cutting face, and the opposite side plane is the face of weld, the limit sword on the cutting face is the cutting edge, the cutting edge is including left end face cutting edge, left R cutting edge, excircle contour cutting edge, right R cutting edge and the right-hand member face cutting edge that sets gradually.

2. The milling cutter for machining the outer contour of the mobile phone shell as claimed in claim 1, wherein: the inner wall of the cutting groove comprises a first rear angle surface and a second rear angle surface, and the first rear angle surface is intersected with the second rear angle surface.

3. The milling cutter for machining the outer contour of the mobile phone shell as claimed in claim 2, wherein: the inclination angle of the first rear corner face is smaller than that of the second rear corner face.

4. The milling cutter for machining the outer contour of the mobile phone shell as claimed in claim 1, wherein: the blade is made of PCD diamond material.

5. The milling cutter for machining the outer contour of the mobile phone shell as claimed in claim 1, wherein: the knife handle and the knife head are of an integrally formed structure.

6. The milling cutter for machining the outer contour of the mobile phone shell as claimed in claim 1, wherein: the inclination angle of the cutting edge is 8-12 degrees.