CN216828834U

CN216828834U - Tungsten steel double-edge milling cutter

Info

Publication number: CN216828834U
Application number: CN202123449203.3U
Authority: CN
Inventors: 袁安红
Original assignee: Huizhou Lizuan Technology Co ltd
Current assignee: Huizhou Lizuan Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-28
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a tungsten steel double-edge milling cutter, which comprises a cutter handle and a cutting part, wherein the rear end of the cutting part is connected with one end of the cutter handle, the cutting part is provided with a first side cutting edge and a second side cutting edge, the front end of the cutting part is provided with a first end cutting edge and a second end cutting edge, the first end edge is connected with the first side cutting edge, the second end edge is connected with the second side cutting edge, the first end edge and the second end edge are arranged asymmetrically in length, the first side cutting edge and the second side cutting edge are arranged asymmetrically, the first end edge and the first side cutting edge are larger, the product can be cut, the second end edge and the second side cutting edge are slightly smaller than the first end edge and the first side cutting edge, burrs and the like generated on the surface of the product in the cutting process can be removed, one machining procedure is reduced, one clamping is reduced, the stability and the efficiency are improved, and the rejection rate is reduced.

Description

Tungsten steel double-edge milling cutter

Technical Field

The utility model relates to a machining equipment technical field specifically is a tungsten steel twolip milling cutter.

Background

A milling cutter is a cutting tool generally used in a milling machine or a processing machine to perform a milling operation, the milling cutter leaves burrs on the surface of a product after processing the product, and static electricity is generated during processing, the static electricity causes some metal chips to be adsorbed on the surface of the product to form burrs, and the burrs cause the product to be manually removed after the processing, which causes a reduction in the production efficiency of the product and also affects the stability of the product quality, and moreover, since a process is added and the milling cutter is manually operated, which increases the rejection rate and reduces the proportion of qualified products, application No. CN201520767284.7 discloses a gang end mill which has both a long end face side cutting edge and a chip breaking function, has a wide application range and is convenient to use, and the side cutting edge is sharp and has sufficient strength, but the milling cutter cannot remove the burrs and the chips, the processed product can only be manually deburred, which leads to reduction of production efficiency of the product and easy occurrence of waste products.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a tungsten steel twolip milling cutter.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tungsten steel twolip milling cutter, includes handle of a knife and cutting portion, the rear end of cutting portion and the one end of handle of a knife are connected, be provided with first side cutting edge and second side cutting edge on the cutting portion, the front end of cutting portion is provided with first end sword and second end sword, first end sword and first side cutting edge are connected, second end sword and second side cutting edge are connected, first side cutting edge is greater than second side cutting edge to the distance at cutting portion center 0.05mm, first side cutting edge and second side cutting edge are the spiral setting, be provided with the chip groove of spiral extension between first side cutting edge and the second side cutting edge.

Preferably, the first side cutting edge has a first helix angle and the second side cutting edge has a second helix angle, the first and second helix angles each being 29-31 degrees.

In a further preferred mode, the first side cutting edge and the second side cutting edge are both provided with a land, a peripheral edge is arranged on the land, and the width of the peripheral edge is 0.17mm-0.19 mm.

In a further preferred aspect, each of the first side cutting edge and the second side cutting edge has a rake angle of 24 degrees to 26 degrees, each of the peripheral edges has a monday relief angle, each of the land has a monday relief angle, each of the monday relief angles is 14 degrees to 16 degrees, and each of the monday relief angles is 27 degrees to 29 degrees.

In a further preferred embodiment, each of the first and second end blades has an end blade rake angle of 5 to 7 degrees, each of the first and second end blades has an end blade width of 0.39 to 0.41mm, each of the first and second end blades has an end-first relief angle of 7 to 9 degrees and an end-second relief angle of 21 to 25 degrees.

In a further preferred embodiment, the first and second end edges each have an edge inclination angle, and the second edge inclination angle is 1 to 2 degrees.

Preferably, the handle, the cutting part, the first side cutting edge, the second side cutting edge, the first end edge and the end edge are integrally formed, and the handle, the cutting part, the first side cutting edge, the second side cutting edge, the first end edge and the second end edge are made of tungsten steel.

(III) advantageous effects

Compared with the prior art, the utility model provides a tungsten steel twolip milling cutter possesses following beneficial effect:

the utility model discloses in, first end sword and the asymmetric setting of second end cutting part, first end sword and first cutting sword are bigger than second end sword and second cutting edge slightly, in the cutting, the effect is the processing product, second end sword and second cutting edge are little, can not play the effect of cutting, but can be used for shaving hair and the burr of sticking on the product, the smooth finish improves after processing on the surface that makes the product, needn't finish at the product, remove the hair round pin at the manual work, make the stability and the efficiency of processing improve, and because one process that reduces, in the time of processing, also can reduce one centre gripping process, the rejection rate also has the decline.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the cutting portion of the present invention;

FIG. 3 is a schematic structural view of a first side cutting edge of the present invention;

FIG. 4 is a schematic structural view of the front end of the cutting portion of the present invention;

FIG. 5 is a schematic side view of the cutting portion of the present invention;

FIG. 6 is a schematic cross-sectional view of the first end blade of the present invention;

fig. 7 is a schematic structural view of the first end blade tip according to the present invention.

In the figure: 1. a knife handle; 2. a cutting portion; 3. a first side cutting edge; 4. a second side cutting edge; 5. a first end blade; 6. a second end blade; 7. a chip groove; 8. a first helix angle; 9. a second helix angle; 10. a blade back; 11. a peripheral edge; 13. a first relief angle; 14. a cycle clearance angle; 15. an end blade rake angle; 16. terminating a relief angle; 17. end secondary relief angles; 18. the edge inclination angle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1 to 7, a tungsten steel double-edge milling cutter includes a cutter handle 1 and a cutting part 2, a rear end of the cutting part 2 is connected to one end of the cutter handle 1, the cutting part 2 is provided with a first side cutting edge 3 and a second side cutting edge 4, a front end of the cutting part 2 is provided with a first end edge 5 and a second end edge 6, the first end edge 5 is connected to the first side cutting edge 3, the second end edge 6 is connected to the second side cutting edge 4, a distance from the first side cutting edge 3 to a center of the cutting part 2 is 0.05mm greater than a distance from the second side cutting edge 4 to the center of the cutting part 2, the first side cutting edge 3 and the second side cutting edge 4 are both spirally arranged, and a chip discharge groove 7 spirally extending is formed between the first side cutting edge 3 and the second side cutting edge 4.

In the present embodiment, the first side cutting edge 3 has a first helix angle 8, the second side cutting edge 4 has a second helix angle 9, and both the first helix angle 8 and the second helix angle 9 are 29-31 degrees. The first helix angle 8 and the second helix angle 9 are at an angle of 30 degrees with an error of no more than 1 degree, e.g. the first helix angle 8 is 29.32 degrees and the second helix angle 9 is 30.52 degrees

In the embodiment, the first side cutting edge 3 and the second side cutting edge 4 are both provided with a land 10, the land 10 is provided with a peripheral edge 11, and the width of the peripheral edge 11 is 0.17mm-0.19 mm. The peripheral edge 11 is a transition region between the land 10 and the first side cutting edge 3 or the second side cutting edge 4, and has a width of 0.18mm with a tolerance of not more than 0.01mm, for example, the peripheral edge 11 of the first side cutting edge 3 is 0.175mm, and the peripheral edge 11 of the second side cutting edge 4 is 0.183 mm.

In the present embodiment, each of the first side cutting edge 3 and the second side cutting edge 4 has a rake angle 12, the rake angle 12 is 24 to 26 degrees, each of the peripheral edges 11 has a peripheral relief angle 13, the land 10 has a peripheral relief angle 14, the peripheral relief angle 13 is 14 to 16 degrees, and the peripheral relief angle 14 is 27 to 29 degrees. The rake angle 12 is 25 degrees, the error is not more than 1 degree, 24.3 degrees or 25.8 degrees, the angle between the peripheral edge 11 and the tangent line of the second side cutting edge 4 of the first side cutting edge 3 is a first clearance angle 13, the angle is 15 degrees, the error is not more than 1 degree, the angle between the land 10 and the tangent line of the second side cutting edge 4 of the first side cutting edge 3 is a second clearance angle 14, the angle is 28 degrees, the error is not more than 1 degree, the special angle between the first clearance angle 13 and the second clearance angle 14 ensures that the first side cutting edge 3 or the second side cutting edge 4 has enough sharpness, the angle between the two first clearance angles 13 can be 15.6 degrees or 14.3 degrees, and the angle between the two second clearance angles 14 can be 27.6 degrees or 28.5 degrees.

In the present embodiment, the first end edge 5 and the second end edge 6 each have an end edge rake angle 15, the end edge rake angle 15 is 5 degrees to 7 degrees, the first end edge 5 and the second end edge 6 each have an end edge width, the end edge width is 0.39mm to 0.41mm, the first end edge 5 and the second end edge 6 each have an end-to-end relief angle 16 and an end-to-end relief angle 17, the end-to-end relief angle 16 is 7 degrees to 9 degrees, and the end-to-end relief angle 17 is 21 degrees to 25 degrees. The end edge rake angle 15 degree is 6 degrees, the error is no more than 1 degree, the end edge width is 0.4, the error is no more than 0.01mm, when making first end edge 5 have sufficient intensity, compromise the sharpness, end one back angle 16 is 8 degrees, the error is no more than 1 degree, end two back angle 17 is 23 degrees, the error is no more than 2 degrees, two end one back angles 16 can be 7.35 degrees or 8.56 degrees, two end two back angles 17 can be 21.8 degrees or 24.6 degrees, the end edge width can be 0.368mm or 0.404mm, two end edge rake angles 15 can be 5.7 degrees or 6.3 degrees

In the present embodiment, the first end edge 5 and the second end edge 6 each have an edge rake angle 18, and the second edge rake angle 18 is each 1 degree to 2 degrees. The angle of the edge inclination angle 18 is 1.5 degrees, the error is not more than 0.5 degrees, and the angle can be 1.5 degrees or 1.68 degrees

In this embodiment, the shank 1, the cutting portion 2, the first side cutting edge 3, the second side cutting edge 4, the first end edge 5, and the second end edge 6 are integrally formed, and the shank 1, the cutting portion 2, the first side cutting edge 3, the second side cutting edge 4, the first end edge 5, and the second end edge 6 are made of tungsten steel. The integral forming has enough strength, and the tungsten steel material also provides enough strength.

Example 2:

referring to fig. 1-7, in use, the tool shank 1 is mounted on a designated clamping mechanism of a machine tool, the machine tool is driven by the machine tool to carry out high speed machining, the first end edge 5 and the first side cutting edge 3 of the cutting part 2 contact with a product to machine the product, the size of the first end edge 5 and the first side cutting edge 3 determines the size of the product to be machined, generated metal debris is discharged from a chip discharge groove 7 to prevent the metal debris from influencing the cutting work, the second end edge 6 and the second side cutting edge 4 are smaller than the first end edge 5 and the first side cutting edge 3 by a little 0.05mm, and the cutting function cannot be achieved in the cutting process, but burrs and burrs generated in the machining process of the surface of the product and burrs due to electrostatic adhesion are removed, so that the surface of the product has a high degree of finish, the manual operation is not needed to remove the burrs and the burrs, and the clamping is not performed any more, the stability and the efficiency are improved, and the rejection rate is reduced.

In all the above-mentioned embodiments, the connection between two components may be selected from welding, bolt and nut fit connection, bolt or screw connection or other known connection methods according to actual situations, which are not repeated herein, and it is preferable to consider welding in the above description, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a tungsten steel twolip milling cutter, includes handle of a knife (1) and cutting part (2), the rear end of cutting part (2) is connected its characterized in that with the one end of handle of a knife (1): be provided with first side cutting edge (3) and second side cutting edge (4) on cutting portion (2), the front end of cutting portion (2) is provided with first end sword (5) and second end sword (6), first end sword (5) and first side cutting edge (3) are connected, second end sword (6) and second side cutting edge (4) are connected, first side cutting edge (3) are greater than second side cutting edge (4) to the distance at cutting portion (2) center by 0.05mm, first side cutting edge (3) and second side cutting edge (4) are the spiral setting, be provided with spiral extension's chip groove (7) between first side cutting edge (3) and second side cutting edge (4).

2. A tungsten steel double-edged milling cutter as set forth in claim 1, wherein: the first side cutting edge (3) has a first helix angle (8), the second side cutting edge (4) has a second helix angle (9), and the first helix angle (8) and the second helix angle (9) are both 29-31 degrees.

3. A tungsten steel double-edged milling cutter as set forth in claim 2, wherein: the cutting edge structure is characterized in that the first side cutting edge (3) and the second side cutting edge (4) are both provided with an edge back (10), a peripheral edge (11) is arranged on the edge back (10), and the width of the peripheral edge (11) is 0.17-0.19 mm.

4. A tungsten steel double-edged milling cutter as set forth in claim 3, wherein: the first side cutting edge (3) or the second side cutting edge (4) is provided with a front angle (12), the front angle (12) ranges from 24 degrees to 26 degrees, the peripheral edge (11) is provided with a peripheral relief angle (13), the land (10) is provided with a peripheral relief angle (14), the peripheral relief angle (13) ranges from 14 degrees to 16 degrees, and the peripheral relief angle (14) ranges from 27 degrees to 29 degrees.

5. The tungsten steel double-edged milling cutter according to claim 4, wherein the first end edge (5) and the second end edge (6) each have an end edge rake angle (15), the end edge rake angle (15) is 5 to 7 degrees, the first end edge (5) and the second end edge (6) each have an end edge width, the end edge width is 0.39 to 0.41mm, each of the first end edge (5) and the second end edge (6) has an end-to-end relief angle (16) and an end-to-end relief angle (17), the end-to-end relief angle (16) is 7 to 9 degrees, and the end-to-end relief angle (17) is 21 to 25 degrees.

6. A tungsten steel double-edged milling cutter as set forth in claim 5, wherein: the first end edge (5) and the second end edge (6) are provided with edge inclination angles (18), and the edge inclination angles (18) are all 1-2 degrees.

7. A tungsten steel double-edged milling cutter as claimed in claim 6, wherein: the cutting tool comprises a tool shank (1), a cutting part (2), a first side cutting edge (3), a second side cutting edge (4), a first end edge (5) and a second end edge (6) which are integrally formed.