CN205684798U - Efficiently minute surface milling cutter - Google Patents

Abstract

The utility model provides a high-efficiency mirror milling cutter, which includes a handle and a cutting part; There are several peripheral teeth, and several peripheral teeth are formed on the peripheral side of the cutting part, the chip removal groove is formed between the connected peripheral teeth, the end teeth of any peripheral tooth form the end teeth, and any peripheral tooth includes the front A flank and a flank, the flank includes a first arc flank and a second arc flank, the intersection line of the first arc flank and the rake face forms the The cutting edge of the teeth. The high-efficiency mirror milling cutter of the utility model is suitable for high-speed, high-efficiency, and high-precision cutting, and has remarkable economic and social effects. Specifically, in the high-efficiency mirror milling cutter of the present invention, the first circular arc flank has the advantages of small clearance and narrow width. At the same time, the combination of the second arc flank can make the cutting edge of the whole milling cutter sharp and strong.

Description

Efficient mirror milling cutter

technical field

The utility model relates to a milling cutter, in particular to a high-efficiency mirror milling cutter.

Background technique

At present, the existing milling cutters for external hard alloy aluminum all adopt linear flank or single arc flank structure. Among them, the linear flank milling cutter has a larger flank clearance and a sharper edge, which will reduce the strength of the cutting edge. In order to increase the strength of the cutting edge, it is necessary to reduce the clearance of the flank, so that the strength of the cutting edge is improved. However, while the strength of the cutting edge is improved, the cutting edge of the cutting tool will not be sharp, which will cause vertical lines on the surface of the processed workpiece. In addition, due to the extremely high requirements on the surface of the workpiece, vertical and horizontal lines that can be seen by the naked eye cannot appear.

Therefore, the linear flank has the following disadvantages: (1) Due to the large clearance of the flank, the strength of the milling cutter edge is reduced, especially when the milling cutter has a large cutting width allowance, the insufficient strength of the cutting edge will seriously reduce the strength of the milling cutter. Tool life and affect the surface quality of the workpiece;

(2) When the surface quality requirements of the workpiece are extremely high, in order to meet the requirements, the linear flank milling cutter is usually made into an unequal structure. Because only if it is made into an unequal structure, can the phenomenon of resonance caused by the sharp cutting edge be compensated. However, the unequal structure only solves the phenomenon of vertical lines on the surface of the workpiece caused by resonance, but the cutting edge is still sharp, so the service life of the tool is not high.

Therefore, in view of the above problems, it is necessary to propose a further solution.

Utility model content

The purpose of the utility model is to provide a high-efficiency mirror milling cutter to overcome the deficiencies in the prior art.

In order to achieve the purpose of the above utility model, the utility model provides a high-efficiency mirror milling cutter, which includes a handle and a cutting part;

The cutting part is located at the end of the tool handle, and the cutting part includes: peripheral teeth, end teeth and chip removal grooves, the peripheral teeth are several, and several peripheral teeth are formed on the peripheral side of the cutting part Above, the chip removal groove is formed between the connected peripheral teeth, and the end teeth are formed at the end of any peripheral tooth, and any peripheral tooth includes a rake surface and a flank surface, and the flank surface includes a first arc relief cutter and the second arc flank, the intersection line of the first arc flank and the rake face forms the cutting edge of the peripheral tooth.

As an improvement of the high-efficiency mirror milling cutter of the utility model, the handle is a cylindrical handle.

As an improvement of the high-efficiency mirror milling cutter of the present utility model, any peripheral tooth extends along the peripheral side of the cutting part in a helical form.

As an improvement of the high-efficiency mirror milling cutter of the present utility model, the intersection line of one side of the first circular arc flank and the rake face forms the cutting edge of the peripheral tooth, and the other side and the second circular arc Tangent to the arc flank.

As an improvement of the high-efficiency mirror milling cutter of the present invention, the width of the first circular arc flank is smaller than the width of the second circular arc flank.

As an improvement of the high-efficiency mirror milling cutter of the present utility model, the chip removal groove is an ordinary groove or a formed groove.

As an improvement of the high-efficiency mirror milling cutter of the utility model, the groove surface of the chip removal groove is a polished surface.

Compared with the prior art, the beneficial effect of the utility model is that the high-efficiency mirror milling cutter of the utility model is suitable for high-speed, high-efficiency, and high-precision cutting, and the economic benefit and social effect are remarkable. Specifically, in the high-efficiency mirror milling cutter of the present invention, the first circular arc flank has the advantages of small clearance and narrow width. At the same time, the combination of the second arc flank can make the cutting edge of the whole milling cutter sharp and strong. Compared with the existing milling cutter, the cutting speed of the high-efficiency mirror milling cutter of the utility model can be increased by more than 60%, and the feed rate can be increased by 100%, and the appearance of the processed product has no horizontal and vertical lines.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments recorded in the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is the front view of the partial structure of a specific embodiment of the high-efficiency mirror milling cutter of the present invention;

Fig. 2 is a side view of a specific embodiment of a high-efficiency mirror milling cutter of the present invention;

FIG. 3 is an enlarged cross-sectional view of the portion circled A in FIG. 2 .

detailed description

The utility model will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the utility model, and those of ordinary skill in the art can perform functions, methods, or structures based on these implementations. The above equivalent transformation or replacement all belong to the protection scope of the present utility model.

As shown in FIGS. 1-3 , the high-efficiency mirror milling cutter of the present invention includes a tool handle 10 and a cutting part 20 . Wherein, the cutting part 20 is located at the end of the handle 10, and the two are integrally formed. Preferably, the handle 10 is a cylindrical handle.

The cutting part 20 is used for cutting when the milling cutter is working. The cutting part 20 includes: peripheral teeth 21, end teeth 22 and chip removal grooves 23, wherein the peripheral teeth 21 are several, and several peripheral teeth 21 are formed on the peripheral side of the cutting part 20, and the peripheral teeth 21 are connected to each other. The chip removal grooves 23 are formed between the teeth 21 . The chip flute 23 can be designed into a chip space with different widths according to the diameter of the milling cutter. Preferably, the chip removal groove 23 is a common groove or a shaped groove, and the groove surface of the chip removal groove 23 is a polished surface. In addition, the end teeth 22 are formed at the end of any peripheral tooth 21 .

Any peripheral tooth 21 extends along the peripheral side of the cutting portion 20 in a helical form, specifically, any peripheral tooth 21 includes a rake surface 210 and a flank surface, and the flank surface includes a first arc flank surface 211 and the second arc flank 212 , the intersection line of the first arc flank 211 and the rake face 210 forms the cutting edge of the peripheral tooth 21 . Wherein, the intersection line of one side of the first arc flank 211 and the rake face 210 forms the cutting edge of the peripheral tooth 21 , and the other side is tangent to the second arc flank 212 .

Further, the first arc flank 211 is the main cutting edge, used for cutting and squeezing, and the second arc flank 212 is the auxiliary cutting edge, mainly to ensure that there is sufficient clearance on the flank of the peripheral edge At the same time, the strength of the peripheral blade is guaranteed.

In the above embodiments, the width of the first arc flank 211 is a constant value, which does not change with the change of the back width, let alone the change of the diameter. At the same time, the width of the first arc flank 211 is smaller than the width of the second arc flank 212 . The first arc flank 211 has the advantages of small clearance and narrow width. Therefore, since the gap of the first arc flank 211 is small, it can play a role of squeezing light, and the narrow width makes the tool cut briskly. At the same time, the combination of the second arc flank 212 can make the cutting edge of the whole milling cutter sharp and strong.

Next, compare the cutting conditions of the high-efficiency mirror milling cutter of the present utility model and the traditional milling cutter, and the cutting conditions include: cutting speed, feed speed, processing method, and cutting efficiency. Specifically, the working conditions of the cutting test are: in the vertical machining center, the spindle type is BT40, external cooling, and the processed material is extruded aluminum 6063. The comparison results of the cutting conditions between the two are shown in Table 1 below:

Table 1

It can be seen from Table 1 that the high-efficiency mirror milling cutter of the utility model is suitable for high-speed, high-efficiency, high-precision cutting, the cutting speed can be increased by more than 60%, and the feed can be increased by 100%.

In summary, the high-efficiency mirror milling cutter of the utility model is suitable for high-speed, high-efficiency, and high-precision cutting, and has remarkable economic and social effects. Specifically, in the high-efficiency mirror milling cutter of the present invention, the first circular arc flank has the advantages of small clearance and narrow width. At the same time, the combination of the second arc flank can make the cutting edge of the whole milling cutter sharp and strong. Compared with the existing milling cutter, the cutting speed of the high-efficiency mirror milling cutter of the utility model can be increased by more than 60%, the feed can be increased by 100%, and the appearance of the processed product has no horizontal and vertical lines.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. A high-efficiency mirror milling cutter, characterized in that, said high-efficiency mirror milling cutter comprises a handle and a cutting portion; The cutting part is located at the end of the tool handle, and the cutting part includes: peripheral teeth, end teeth and chip removal grooves, the peripheral teeth are several, and several peripheral teeth are formed on the peripheral side of the cutting part Above, the chip removal groove is formed between the connected peripheral teeth, and the end teeth are formed at the end of any peripheral tooth, and any peripheral tooth includes a rake surface and a flank surface, and the flank surface includes a first arc relief cutter and the second arc flank, the intersection line of the first arc flank and the rake face forms the cutting edge of the peripheral tooth. 2. The high-efficiency mirror milling cutter according to claim 1, wherein the shank is a cylindrical shank. 3. The high-efficiency mirror milling cutter according to claim 1, characterized in that, any one of the peripheral teeth extends in a helical manner along the peripheral side of the cutting portion. 4. The high-efficiency mirror milling cutter according to claim 1, characterized in that, the intersection line between one side of the first arc flank and the rake face forms the cutting edge of the peripheral tooth, and the other side Tangent to the second arc flank. 5. The high-efficiency mirror milling cutter according to claim 1, characterized in that, the width of the first arc flank is smaller than the width of the second arc flank. 6. The high-efficiency mirror milling cutter according to claim 1, characterized in that, the chip removal groove is an ordinary groove or a formed groove. 7. The high-efficiency mirror milling cutter according to claim 1, characterized in that, the groove surface of the chip removal groove is a polished surface.