CN212329782U

CN212329782U - Milling cutter structure

Info

Publication number: CN212329782U
Application number: CN202020225815.0U
Authority: CN
Inventors: 杨燕松
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-30
Filing date: 2020-02-28
Publication date: 2021-01-12
Anticipated expiration: 2030-02-28
Also published as: TWM581952U

Abstract

The utility model discloses a milling cutter structure, including cutter body and a plurality of cutting teeth, cutter body's central authorities are equipped with the perforation, and a plurality of cutting teeth set up in cutter body's outer fringe with being separated by fixed interval each other, and each cutting tooth has top surface, cutting face and the back separately, and the relative both sides limit of top surface connects cutting face and back respectively, and the cutting face is the concave arc face, and the connecting wire of top surface and cutting face forms the cutting edge, and the back of cutting face and adjacent cutting tooth forms the chip groove. The utility model discloses a milling cutter structure borrows by the cutting face of concave cambered surface, and the chip groove has bigger accommodation space, and the piece of cutting also discharges along the cutting face of cambered surface more easily.

Description

Milling cutter structure

Technical Field

The present invention relates to a cutting tool, and more particularly, to a milling cutter structure.

Background

Milling cutters are cutting tools commonly used in milling machines or machining machines to perform milling operations. As the mill rotates, the object to be cut is fed into the mill, and each tooth of the mill sequentially cuts off a small piece of material to produce a large amount of debris. Whether the milling cutter has an effective chip removal capability is of considerable importance in the machining process, and if the chip removal capability is not good, chips become jammed in the grooves of the milling cutter, not only making it difficult for the milling cutter to continue to perform cutting, but also causing the milling cutter to vibrate, wear and overheat.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an effectively get rid of clastic milling cutter structure.

To achieve the above and other objects, the present invention provides a milling cutter structure, comprising: the center of the cutter body is provided with a through hole; and the cutting teeth are arranged on the outer edge of the cutter body at fixed intervals, each cutting tooth is provided with a top surface, a cutting surface and a back surface, two opposite side edges of the top surface are respectively connected with the cutting surface and the back surface, the cutting surface is a concave arc surface, a connecting line of the top surface and the cutting surface forms a cutting edge, and chip grooves are formed on the cutting surface and the back surfaces of the adjacent cutting teeth.

Optionally, the plurality of cutting teeth are integrally formed on an outer edge of the tool body.

Optionally, the included angle between the top surface and the cutting surface is acute.

Optionally, an included angle between the top surface and the back surface is an obtuse angle.

Optionally, the length of the back surface is longer than the line connecting the cutting edge to the bottom of the flute.

Therefore, the utility model discloses a milling cutter structure compares in prior art, has the cutting face of concave cambered surface, has not only increaseed the space of chip groove, can hold more pieces, and concave cambered surface also helps the piece to remove along the cutting face, makes the piece not stay in the chip groove and can discharge smoothly from the milling cutter structure, prolongs milling cutter's life.

For a further understanding of the nature and technical content of the invention, reference should be made to the following detailed description of the invention and to the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the invention.

Drawings

Fig. 1 is a schematic use view of a milling cutter structure according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a milling cutter structure according to an embodiment of the present invention.

Fig. 3 is a schematic plan view of a milling cutter structure according to an embodiment of the present invention.

Reference numerals:

100 milling cutter structure

1 tool body

11 perforation

2 cutting tooth

21 top surface

22 cutting surface

23 back side of

24 cutting edge

F chip groove

H-shaped knife handle

W workpiece to be processed

Detailed Description

In order to fully understand the present invention, the following detailed description is given with reference to the accompanying drawings. The objects, features and functions of the present invention will be apparent to those skilled in the art from the disclosure of the present specification. It is to be noted that the present invention may be practiced or applied in other embodiments and that various modifications and changes may be made in the details of the description without departing from the spirit of the invention. In addition, the drawings attached to the present invention are only for simple schematic illustration and are not drawn to actual dimensions. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the claims of the present invention. The description is as follows:

as shown in fig. 1, the utility model provides a milling cutter structure 100, detachably set up on handle of a knife H in order to rotate along with handle of a knife H for the cutting waits to process thing W.

As shown in fig. 2 and 3, the milling cutter structure 100 includes a cutter body 1 and a plurality of cutting teeth 2. The center of the cutter body 1 is provided with a through hole 11 for being sleeved on the cutter handle H.

A plurality of cutting teeth 2 are provided at the outer edge of the tool body 1 at a fixed interval from each other. Each of the cutting teeth 2 has a top surface 21, a cutting surface 22, and a back surface 23, and opposite sides of the top surface 21 are connected to the cutting surface 22 and the back surface 23, respectively. The cutting face 22 is a concave arc face, a connecting line of the top face 21 and the cutting face 22 forms a cutting edge 24, and the cutting face 22 and a back face 23 of the adjacent cutting tooth 2 form a chip removal groove F.

When the milling cutter structure 100 rotates, the cutting edge 24 of each cutting tooth 2 sequentially cuts the workpiece W, and the cut chips enter the chip discharge grooves F along the cutting surface 22 of the concave arc surface and then are removed. The concave arcuate cutting surface 22 increases the volume of the flute F to accommodate more debris (in other words, to make the flute F less susceptible to clogging), and the concave arcuate surface also facilitates the movement of debris along the cutting surface 22 without the debris remaining in the flute F.

Through the test, the iron fillings colour temperature that its cut out of milling cutter structure 100 that traditional did not have the concave cambered surface is blue (high temperature), and the utility model discloses an iron fillings colour temperature that its cut out of milling cutter structure 100 that has the concave cambered surface is white. That is, the milling cutter structure 100 of the present invention can maintain the state processing of the lowest temperature and the low resistance, and maintain the fastest feed rate, the lowest friction, and the cutting with the minimum force. The milling cutter has the advantages that the stable and excellent cutting process can be kept from the beginning to the end of the service life of the milling cutter, and compared with the traditional milling cutter, the milling cutter has longer service life, quicker chip removal, lighter cutting force and quicker feed rate, is an excellent improved milling cutter and has importance and advancement.

Further, in one embodiment, as shown in fig. 1-3, the cutting tooth 2 is integrally formed on the outer edge of the tool body 1. Therefore, the cutting teeth 2 are not required to be connected to the cutter body 1 through other means, the cutting teeth 2 are not separated, the cutting teeth are more durable, and the number of components and the assembly procedure are reduced.

Further, in one embodiment, as shown in fig. 2 and 3, the included angle between the top surface 21 and the cutting surface 22 is acute, such that the cutting edge 24 is formed to facilitate cutting.

The included angle between the top surface 21 and the back surface 23 is an obtuse angle, and the length of the back surface 23 in the flute F is longer than the line connecting the cutting edge 24 to the bottom of the flute F. By such a design, the opening direction of the chip discharge groove F has an oblique direction relative to the radial direction of the milling cutter structure 100, and when the oblique direction is in the rotation direction of fig. 1, the cut chips are more easily released from the chip discharge groove F.

The present invention has been disclosed in terms of preferred embodiments, but those skilled in the art will recognize that such embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of the invention. It should be noted that all changes and substitutions equivalent to those of the described embodiments are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention is defined by the following claims.

Claims

1. A milling cutter structure, characterized in that the milling cutter structure comprises:

the center of the cutter body is provided with a through hole; and

the cutting teeth are arranged on the outer edge of the cutter body at fixed intervals, each cutting tooth is provided with a top surface, a cutting surface and a back surface, two opposite side edges of the top surface are respectively connected with the cutting surface and the back surface, the cutting surface is a concave arc surface, a connecting line of the top surface and the cutting surface forms a cutting edge, and chip removal grooves are formed in the cutting surface and the back surface of the adjacent cutting tooth.

2. The milling cutter structure of claim 1, wherein the cutting teeth are integrally formed on an outer edge of the cutter body.

3. The milling cutter structure according to claim 1, wherein the included angle between the top surface and the cutting surface is acute.

4. The milling cutter structure according to claim 3, wherein the included angle between the top and back faces is obtuse.

5. The milling cutter structure according to claim 1, wherein the length of the back surface is longer than a line connecting the cutting edge to the bottom of the flute.