CN216096612U

CN216096612U - Three-edge milling cutter for aluminum alloy processing

Info

Publication number: CN216096612U
Application number: CN202122891850.3U
Authority: CN
Inventors: 王辉
Original assignee: Zhejiang Dewei Cemented Carbide Manufacturing Co ltd
Current assignee: Zhejiang Dewei Cemented Carbide Manufacturing Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-03-22
Anticipated expiration: 2031-11-22

Abstract

The utility model relates to the technical field of milling equipment, in particular to a three-edge milling cutter for processing aluminum alloy, which comprises: the cutter comprises a cutter handle, wherein one end of the cutter handle extends to form a cutter head, three spiral blades rotating in the same direction are formed at the front end of the cutter head and uniformly arranged around the axis of the cutter handle, the core thickness of the cutter head is 42% of the outer diameter of the cutter head, the first peripheral tooth back angle of each spiral blade is 13-17 degrees, and the second peripheral tooth back angle of each spiral blade is 31-35 degrees. Through the cell type design of revising the tool bit, enlarge first week tooth relief angle, revise the core thickness of tool bit for 42% of tool bit external diameter simultaneously, increased the sharpness of cutter, promoted three-edge milling cutter and increased the chip removal effect of three-edge tool bit when milling efficiency to the aluminum alloy, made the chip removal more smooth and easy. Milling efficiency and timely chip removal through promoting the aluminum alloy can also reduce the cutter that causes high temperature to lead to when the chip removal is untimely when milling fast and treat the wearing and tearing of machined part, prevent the tipping, increase the cutter life-span, guaranteed the machining precision of treating the machined part.

Description

Three-edge milling cutter for aluminum alloy processing

Technical Field

The utility model relates to the technical field of milling equipment, in particular to a three-edge milling cutter for processing aluminum alloy.

Background

At present, the processing of aluminum alloy is mainly high-speed processing, and a high-speed processing cutter needs to meet the requirements on rigidity, chip removal, service life and roughness. The aluminum alloy material has lower strength and softer surface hardness. Easily form cutting burs, the plastic deformation amount is small during cutting, the chips are not easy to curl, the occupied space is large, and the chip removal is influenced. When the milling cutter in the prior art has more cutting edges, the milling cutter has poor chip removal effect when milling an aluminum alloy part and cannot be used during rough milling. And the cutting edge of the milling cutter is few, so that the chip removal requirement can be met, but the milling efficiency is extremely low.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to overcome the defect that the milling cutter has poor chip removal effect and low efficiency when an aluminum alloy structural member is milled in the prior art, and provides the three-edge milling cutter for processing the aluminum alloy.

In order to solve the above technical problems, the present invention provides a three-edge milling cutter for processing aluminum alloy, comprising:

the cutter comprises a cutter handle, wherein one end of the cutter handle extends to form a cutter head, three spiral blades rotating in the same direction are formed at the front end of the cutter head and evenly distributed around the axis of the cutter handle, the core thickness of the cutter head is 42% of the outer diameter of the cutter head, the first peripheral tooth back angle of each spiral blade is 13-17 degrees, and the second peripheral tooth back angle of each spiral blade is 31-35 degrees.

Optionally, the helical blade has a first peripheral tooth clearance angle of 15 ° and a second peripheral tooth clearance angle of 32 °.

Optionally, the helix angle of the helical cutting edge is 37 ° to 38 °.

Optionally, the helical edge has a helix angle of 38 °.

Optionally, the helical cutting edge has a width of 30% of the outer diameter of the cutting head and a width of 8% of the outer diameter of the cutting head.

Optionally, the outer diameter of the cutting head is 0.8 mm-6.0 mm.

Optionally, the helical blade has a length of 5mm to 35 mm.

Optionally, the surface of the tool bit is coated with a high silicon chromium coating, and the thickness of the high silicon chromium coating is 1.5-2.5 μm.

Optionally, the rotation directions of the three helical blades are all right-handed.

Optionally, the roundness of the tool shank is not greater than 2 microns.

The technical scheme of the utility model has the following advantages:

1. the utility model provides a three-edge milling cutter for processing aluminum alloy, which comprises: the cutter comprises a cutter handle, wherein one end of the cutter handle extends to form a cutter head, three spiral blades rotating in the same direction are formed at the front end of the cutter head and uniformly arranged around the axis of the cutter handle, the core thickness of the cutter head is 42% of the outer diameter of the cutter head, the first peripheral tooth back angle of each spiral blade is 13-17 degrees, and the second peripheral tooth back angle of each spiral blade is 31-35 degrees. Through the cell type design of revising the tool bit, enlarge first week tooth relief angle, revise the core thickness of tool bit for 42% of tool bit external diameter simultaneously, increased the sharpness of cutter, promoted three-edge milling cutter and increased the chip removal effect of three-edge tool bit when milling efficiency to the aluminum alloy, made the chip removal more smooth and easy. Milling efficiency and timely chip removal through promoting the aluminum alloy can also reduce the cutter that causes high temperature to lead to when the chip removal is untimely when milling fast and treat the wearing and tearing of machined part, prevent the tipping, increase the cutter life-span, guaranteed the machining precision of treating the machined part.

2. The helical angle of the helical cutting edge of the three-edge milling cutter for processing the aluminum alloy is 38 degrees. The cutter body strength can be guaranteed while the milling efficiency is improved, and a better chip removal effect is achieved.

3. The three-edge milling cutter for processing the aluminum alloy, provided by the utility model, has the advantages that the surface of the cutter head is coated with the high-silicon chromium coating, and the thickness of the high-silicon chromium coating is 1.5-2.5 mu m. The strength of the cutter head is enhanced, and the milling efficiency and the machining precision are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a side view of a three-edge milling cutter for aluminum alloy processing provided in an embodiment of the present invention.

Fig. 2 is a top view of a cutter head provided in an embodiment of the present invention.

Description of reference numerals: 1. a knife handle; 2. a cutter head; 3. a helical blade; 4. a helix angle; 5. the core is thick; 6. a first peripheral tooth relief angle; 7. a second peripheral tooth relief angle; 8. a width of the blade; 9. the edge is wide.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Examples

As shown in fig. 1 and fig. 2, the three-edge milling cutter for processing aluminum alloy according to the present embodiment is used for milling an aluminum alloy piece, and includes: the tool comprises a cylindrical tool handle 1 and a tool bit 2 formed by extending forwards at one end of the tool handle 1, wherein the tool bit 2 and the tool handle 1 are of an integrally formed structure. The total length of the milling cutter is 50 mm-50.5 mm, and the total length of the milling cutter in the embodiment is 50.5 mm.

The front end of the cutter head 2 is formed with three spiral blades 3 rotating in the same direction, and the three spiral blades 3 rotate in the right direction. The three spiral blades 3 are uniformly arranged around the axis of the cutter handle 1, the core thickness 5 of the cutter head 2 is 42% of the outer diameter of the cutter head 2, the first peripheral tooth relief angle 6 of each spiral blade 3 is any value from 13 degrees to 17 degrees, and the second peripheral tooth relief angle 7 of each spiral blade 3 is any value from 31 degrees to 35 degrees. In the present embodiment, the helical blade 3 has a first peripheral tooth clearance angle 6 of 15 ° and a second peripheral tooth clearance angle 7 of 32 °.

The helix angle 4 of the helical cutting edge 3 is any value from 37 to 38. In the present embodiment, the helix angle 4 of the helical cutting edge 3 is 38 °.

The outer diameter of the cutter head 2 is any one of 0.8mm to 6.0 mm. In this embodiment, the cutting head 2 has an outer diameter of 6 mm. The width 9 of the helical blade 3 is 30% of the outer diameter of the tip 2, and the width 8 of the blade is 8% of the outer diameter of the tip 2.

The length of the helical blade 3 is any one of 5mm to 35 mm. In the present embodiment, the helical blade 3 has an edge length of 35 mm.

In order to improve the strength of the cutter head 2, the surface of the cutter head 2 is coated with a high silicon-chromium coating, and the thickness of the high silicon-chromium coating is 1.5-2.5 microns. In this example, the coating thickness was 2 μm.

The diameter of the knife handle 1 is 6mm, and the roundness of the knife handle 1 is not more than 2 mu m.

As an alternative embodiment, the tip diameter of the cutting head 2 is 0.8mm and the edge length of the helical cutting edge 3 is 5 mm. The tool bit 2 and the tool handle 1 are in smooth transition through a conical section.

As an alternative embodiment, the cutting head 2 is conical, the diameter of the front end of the cutting head 2 being smaller than the diameter of the rear end of the cutting head 2.

As an alternative embodiment, the cutting head 2 has an outer diameter of 5 mm. The width of the helical blade 3 is 30% of the outer diameter of the tip 2, and the width 8 of the blade is 8% of the outer diameter of the tip 2. The first peripheral tooth clearance angle 6 is 15 °, and the second peripheral tooth clearance angle 7 is 31 °.

As an alternative embodiment, the first peripheral tooth clearance angle 6 is 16 °, and the second peripheral tooth clearance angle 7 is 33 °.

As an alternative embodiment, the first peripheral tooth clearance angle 6 is 17 °, and the second peripheral tooth clearance angle 7 is 35 °.

Through the cell type design of revising tool bit 2, enlarge first week tooth relief angle 6, revise the core thickness 5 of tool bit 2 for 42% of 2 external diameters of tool bit simultaneously, increased the sharpness of cutter, promoted three-edge milling cutter and increased the chip removal effect of three-edge tool bit 2 when milling efficiency to the aluminum alloy, made the chip removal more smooth and easy. Milling efficiency and timely chip removal through promoting the aluminum alloy can also reduce the cutter that causes high temperature to lead to when the chip removal is untimely when milling fast and treat the wearing and tearing of machined part, prevent the tipping, increase the cutter life-span, guaranteed the machining precision of treating the machined part.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A three-edge milling cutter for processing aluminum alloy is characterized by comprising:

the cutter comprises a cutter handle (1), one end of the cutter handle (1) extends to form a cutter head (2), three spiral blades (3) rotating in the same direction are formed at the front end of the cutter head (2), the three spiral blades (3) are uniformly distributed around the axis of the cutter handle (1), the core thickness (5) of the cutter head (2) is 42% of the outer diameter of the cutter head (2), the first peripheral tooth back angle (6) of each spiral blade (3) is 13-17 degrees, and the second peripheral tooth back angle (7) is 31-35 degrees.

2. The three-edge milling cutter for aluminum alloy processing according to claim 1, wherein the helical blade (3) has a first peripheral tooth clearance angle (6) of 15 ° and a second peripheral tooth clearance angle (7) of 32 °.

3. Three-edge milling cutter for aluminum alloy machining according to claim 1 or 2, wherein the helix angle (4) of the helical cutting edge (3) is 37 ° to 38 °.

4. The three-edge milling cutter for aluminum alloy machining according to claim 3, wherein the helix angle (4) of the helical cutting edge (3) is 38 °.

5. The three-edge milling cutter for aluminum alloy machining according to claim 1 or 2, wherein the width of the helical cutting edge (3) is 30% of the outer diameter of the insert (2), and the width (8) of the cutting edge is 8% of the outer diameter of the insert (2).

6. The three-edge milling cutter for aluminum alloy machining according to claim 1 or 2, wherein the outer diameter of the cutter head (2) is 0.8mm to 6.0 mm.

7. The three-edge milling cutter for aluminum alloy processing according to claim 1 or 2, wherein the helical blade (3) has a blade length of 5mm to 35 mm.

8. The three-edge milling cutter for aluminum alloy machining according to claim 1 or 2, wherein the surface of the cutter head (2) is coated with a high silicon chromium coating, and the thickness of the high silicon chromium coating is 1.5 μm to 2.5 μm.

9. The three-edge milling cutter for aluminum alloy processing according to claim 1 or 2, wherein the three helical blades (3) are all right-handed in the rotational direction.

10. The three-edge milling cutter for aluminum alloy processing according to claim 1 or 2, wherein the roundness of the shank (1) is not more than 2 μm.