Aluminum milling tool with anti-sticking face coating

Abstract

The utility model belongs to milling cutter technical field especially, it is related to an aluminium milling cutter of preventing sticking tool face coating, to the existing in use, because the friction between the cutter and workpiece can produce heat, and most of the milling cutter uses inconveniently, lead to cutter temperature to be too high, the problem of wear and tear of cutter is improved, present and propose the following scheme, including milling cutter handle, the one end of milling cutter handle is connected with milling cutter body, the outer surface of milling cutter handle is equipped with the cooling mechanism for cooling milling cutter, the cooling mechanism includes water inlet part, and the water inlet part is covered and equipped in the outer surface of milling cutter handle, the utility model discloses the cooling liquid of outside enters to the water inlet part in through the water inlet, and enters to the inside of milling cutter handle through the through -hole, passes through the inside of connecting piece and fixed head, enters the flow cavity in the milling cutter body, and then carries out the cooling of milling cutter body, and the cooling liquid of carrying heat sprays out through the water outlet hole on the milling cutter body, realizes the function of heat dissipation.

Description

Technical Field

[0001] This utility model relates to an aluminum end mill, specifically an aluminum end mill with an anti-sticking coating, belonging to the field of technical end mills. Background Technology

[0002] Aluminum end mills are cutting tools specifically designed for machining non-ferrous metals such as aluminum alloys. They are primarily made of tool materials such as cemented carbide or high-speed steel. Also known as aluminum milling cutters, they are specialized cutting tools for machining non-ferrous metals such as aluminum alloys. They are mainly used for machining planes, internal holes, and grooves in various non-ferrous metals, and are widely used in aerospace, automotive manufacturing, electronics, and machinery manufacturing. Aluminum end mills are made from high-quality materials such as cemented carbide or high-speed steel, possessing high hardness and wear resistance, and can withstand large cutting forces and temperatures.

[0003] In existing technologies, such as the aluminum end mill disclosed in CN218487293U, there is a shank, a cutter head arranged coaxially with the shank, and an end cutting edge at the end of the cutter head. The outer circumference of the cutter head has three helical cutting edges with the same direction of rotation, and the end cutting edge has end teeth corresponding to each cutting edge. A chip removal groove is formed between two adjacent cutting edges. This reduces fluctuations during cutting operations, improving the stability of the cutting process. It also prevents chipping during straight-line cutting, thus reducing the risk of chipping and improving the operating efficiency and service life of the end mill.

[0004] Although the above technical solution can reduce the fluctuations generated during cutting operations and improve the stability of cutting operations by setting the adjacent helix angles unequally, the milling cutter generates heat due to the friction between the tool and the workpiece during use. However, most milling cutters are not convenient for heat dissipation during use, resulting in excessively high tool temperature and increased tool wear rate. In view of this, an aluminum milling cutter with an anti-sticking coating is provided to overcome the above defects. Utility Model Content

[0005] This invention addresses the problem that during use, the friction between the cutting tool and the workpiece generates heat, and most milling cutters are not convenient for heat dissipation, leading to excessively high tool temperatures and increased tool wear. Therefore, this invention provides an aluminum milling cutter with an anti-sticking coating.

[0006] The present invention achieves the above objectives through the following technical solution: an aluminum milling cutter with an anti-stick coating, comprising a milling cutter shank, one end of which is connected to a milling cutter body, and a cooling mechanism for cooling the milling cutter on the outer surface of the milling cutter shank.

[0007] The cooling mechanism includes a water inlet component, which is sleeved on the outer surface of the milling cutter shank. The outer surface of the water inlet component is connected to a water inlet. The outer wall of the milling cutter shank has a through hole that communicates with the water inlet component. A connector that communicates with the through hole is inserted into the inside of the milling cutter shank. A fixing head that is fixedly connected to the milling cutter body is fixed on one side of the connector. A water outlet hole is opened at the end of the milling cutter body.

[0008] As a further improvement of this utility model: a positioning rod is fixed on one side of the milling cutter body, and the end of the positioning rod is inserted into a positioning hole opened on the milling cutter shank.

[0009] As a further improvement of this utility model, the inner wall of the milling cutter shank is fixed with a sealing gasket that fits tightly against the fixing head.

[0010] As a further embodiment of this utility model: the outer surface of the milling cutter body is provided with a chip removal groove, and the outer surface of the milling cutter body is coated with an anti-stick coating, which is an amorphous thin film composed of diamond-like carbon elements.

[0011] As a further improvement of this utility model, the inner surface of the water inlet component is fixed with two limiting rings sleeved on the milling cutter shank.

[0012] As a further improvement of this utility model: a fixed bearing is provided on one side of the limiting ring and sleeved on the milling cutter shank, and a sealing ring is provided on one side of the fixed bearing and fixedly connected to the milling cutter shank.

[0013] As a further improvement of this utility model: the outer surface of the sealing ring is connected to a limiting groove formed on the water inlet, and two fixing rods are fixed on the outer surface of the water inlet.

[0014] As a further improvement of this utility model: fixing screws are installed at the ends of both fixing rods, and limiting bolts that are inserted and connected to the fixing head are installed on the outer wall of the milling cutter shank.

[0015] The beneficial effects of this utility model are: external coolant enters the water inlet through the water inlet, enters the inside of the milling cutter holder through the through hole, and then enters the flow chamber inside the milling cutter body through the inside of the connector and the fixing head, thereby cooling the milling cutter body. The coolant carrying heat is sprayed out through the water outlet on the milling cutter body to achieve the function of heat dissipation.

[0016] The anti-stick coating on the surface of the milling cutter body is a diamond-like carbon coating, an amorphous thin film composed of carbon elements. It has a good low coefficient of friction and anti-adhesion properties, effectively reducing friction and adhesion between the tool and the aluminum alloy, extending tool life, and improving machining accuracy and surface finish. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the milling cutter holder of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the milling cutter body of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the water inlet component of this utility model;

[0021] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Milling cutter holder; 2. Milling cutter body; 3. Water inlet; 31. Water inlet; 32. Through hole; 33. Connector; 34. Fixing head; 35. Water outlet; 36. Positioning rod; 37. Positioning hole; 38. Sealing gasket; 4. Chip removal groove; 5. Anti-stick coating; 6. Limiting ring; 7. Fixed bearing; 8. Sealing ring; 9. Limiting groove; 10. Fixing rod; 11. Fixing screw; 12. Limiting bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0024] like Figures 1 to 5 As shown, an aluminum milling cutter with an anti-stick coating includes a milling cutter shank 1, one end of which is connected to a milling cutter body 2, and the outer surface of the milling cutter shank 1 is provided with a cooling mechanism for cooling the milling cutter.

[0025] The cooling mechanism includes a water inlet 3, which is fitted onto the outer surface of the milling cutter shank 1. The outer surface of the water inlet 3 has a water inlet 31. The outer wall of the milling cutter shank 1 has a through hole 32 communicating with the water inlet 3. A connector 33 communicating with the through hole 32 is inserted into the inside of the milling cutter shank 1. A fixing head 34, which is fixedly connected to the milling cutter body 2, is fixed to one side of the connector 33. A water outlet 35 is opened at the end of the milling cutter body 2. A positioning rod 36 is fixed to one side of the milling cutter body 2, and the end of the positioning rod 36 is inserted into a positioning hole 37 on the milling cutter shank 1. A sealing gasket 38, which is tightly fitted to the fixing head 34, is fixed to the inner wall of the milling cutter shank 1. A chip removal groove 4 is opened on the outside of the milling cutter body 2. The outer surface of the milling cutter body 2 is coated with an anti-stick coating 5, which is an amorphous thin film composed of diamond-like carbon. The machine tool drives the milling cutter shank 1 to rotate. This drives the milling cutter body 2 to rotate and mill the workpiece. The chip removal groove 4 on the milling cutter body 2 facilitates the discharge of waste chips. The anti-stick coating 5 on the surface of the milling cutter body 2 is a diamond-like carbon coating, an amorphous thin film composed of carbon elements, which has extremely high hardness (up to 2200-5000HV) and wear resistance. At the same time, it has a good low coefficient of friction and anti-adhesion, effectively reducing friction and adhesion between the tool and the aluminum alloy, extending tool life, and improving machining accuracy and surface finish. The external coolant enters the water inlet 3 through the water inlet 31, enters the milling cutter holder 1 through the through hole 32, and then enters the flow cavity in the milling cutter body 2 through the inside of the connector 33 and the fixing head 34, thereby cooling the milling cutter body 2. The coolant carrying heat is sprayed out through the water outlet 35 on the milling cutter body 2 to achieve the function of heat dissipation. Example 2

[0026] In addition to all the technical features in Embodiment 1, this embodiment also includes: two limiting rings 6 fixed on the inner surface of the water inlet 3 and sleeved on the milling cutter shank 1; a fixed bearing 7 sleeved on the milling cutter shank 1 on one side of the limiting ring 6; a sealing ring 8 fixedly connected to the milling cutter shank 1 on one side of the fixed bearing 7; the outer surface of the sealing ring 8 connected to the limiting groove 9 opened on the water inlet 3; two fixing rods 10 fixed on the outer surface of the water inlet 3; fixing screws 11 installed at the ends of the two fixing rods 10; a limiting bolt 12 inserted into the fixing head 34 installed on the outer wall of the milling cutter shank 1; the limiting groove 9 provided on the water inlet 3, in cooperation with the sealing ring 8, can play a sealing role; the fixed bearing 7 can ensure that the water inlet 3 will not rotate when the milling cutter shank 1 rotates; the limiting ring 6 can reduce the displacement of the water inlet 3; by unscrewing the limiting bolt 12, the fixing of the fixing head 34 can be released; and the sealing gasket 38 can reduce the leakage of coolant during delivery.

[0027] Working Principle: Before using the aluminum milling cutter with the anti-stick coating, connect the milling cutter to the machine tool. Fix the milling cutter holder 1 to the output shaft of the machine tool, and then connect the end of the fixing rod 10 to the machine tool housing. Secure the fixing rod 10 with fixing screws 11. Connect the water inlet 31 on the water inlet 3 to the external coolant delivery pipe. During use, the machine tool drives the milling cutter holder 1 to rotate, which in turn drives the milling cutter body 2 to rotate and mill the workpiece. The chip removal groove 4 on the milling cutter body 2 facilitates the discharge of waste chips. The anti-stick coating 5 on the surface of the milling cutter body 2 is a diamond-like carbon coating, an amorphous thin film composed of carbon elements, which has extremely high hardness (up to 2200-5000HV) and wear resistance, while also having a good low coefficient of friction and anti-adhesion properties. This effectively reduces friction and adhesion between the tool and the aluminum alloy, extends tool life, and improves machining accuracy. The coolant enters the water inlet 3 through the inlet 31, then enters the end mill shank 1 through the through hole 32, and then enters the flow chamber inside the end mill body 2 through the connector 33 and the fixed head 34, thereby cooling the end mill body 2. The coolant carrying heat is sprayed out through the water outlet 35 on the end mill body 2 to achieve heat dissipation. The limiting groove 9 set on the water inlet 3, with the cooperation of the sealing ring 8, can play a sealing role. The fixed bearing 7 can ensure that the water inlet 3 will not rotate when the end mill shank 1 rotates. The limiting ring 6 can reduce the displacement of the water inlet 3. By unscrewing the limiting bolt 12, the fixing of the fixed head 34 can be released. The sealing gasket 38 can reduce the leakage of coolant during delivery. The positioning rod 36 and the positioning hole 37 facilitate the positioning and assembly of the end mill body 2 and the end mill shank 1.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An aluminum end mill with an anti-sticking coating, comprising an end mill shank (1), characterized in that: One end of the milling cutter holder (1) is connected to the milling cutter body (2), and the outer surface of the milling cutter holder (1) is provided with a cooling mechanism for cooling the milling cutter. The cooling mechanism includes a water inlet (3), which is sleeved on the outer surface of the milling cutter shank (1). The outer surface of the water inlet (3) is connected to a water inlet (31). The outer wall of the milling cutter shank (1) is provided with a through hole (32) that communicates with the water inlet (3). The inside of the milling cutter shank (1) is connected to a connector (33) that communicates with the through hole (32). One side of the connector (33) is fixed with a fixing head (34) that is fixedly connected to the milling cutter body (2). The end of the milling cutter body (2) is provided with a water outlet (35).

2. The aluminum end mill with an anti-sticking coating according to claim 1, characterized in that: A positioning rod (36) is fixed on one side of the milling cutter body (2), and the end of the positioning rod (36) is connected to a positioning hole (37) opened on the milling cutter shank (1).

3. The aluminum end mill with an anti-sticking coating according to claim 2, characterized in that: The inner wall of the milling cutter holder (1) is fixed with a sealing gasket (38) that fits tightly against the fixing head (34).

4. The aluminum end mill with an anti-sticking coating according to claim 1, characterized in that: The milling cutter body (2) has a chip removal groove (4) on its outside, and the outer surface of the milling cutter body (2) is coated with an anti-stick coating (5), which is an amorphous thin film composed of diamond-like carbon elements.

5. The aluminum end mill with an anti-sticking coating according to claim 4, characterized in that: The inner surface of the water inlet (3) is fixed with two limiting rings (6) that are sleeved on the milling cutter shank (1).

6. The aluminum end mill with an anti-sticking coating according to claim 5, characterized in that: One side of the limiting ring (6) is provided with a fixed bearing (7) sleeved on the milling cutter shank (1), and one side of the fixed bearing (7) is provided with a sealing ring (8) fixedly connected to the milling cutter shank (1).

7. The aluminum end mill with an anti-sticking coating according to claim 6, characterized in that: The outer surface of the sealing ring (8) is connected to a limiting groove (9) opened on the water inlet (3), and two fixing rods (10) are fixed on the outer surface of the water inlet (3).

8. The aluminum end mill with an anti-sticking coating according to claim 7, characterized in that: The ends of the two fixing rods (10) are each fitted with fixing screws (11), and the outer wall of the milling cutter shank (1) is fitted with limiting bolts (12) that are inserted and connected to the fixing head (34).

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