Wear-resistant hard alloy milling cutter

Abstract

The utility model relates to the technical field of milling cutters, in particular to a wear-resistant hard alloy milling cutter. According to the technical scheme, the cutter comprises hard alloy cutting edges, a cutter handle and a rotating ring, the hard alloy cutting edges are arranged at the positions, close to the lower surface, of the outer surface of the cutter handle in an annular array at equal intervals, and an oil storage cavity is formed in the position, above the hard alloy cutting edges, in the cutter handle; a plurality of communicating openings are formed in the positions, close to the upper surface, of the outer surface of the cutter handle in an annular array at equal intervals, a rotating ring is rotationally installed at the position, close to the upper surface, of the outer surface of the cutter handle, and an oil pipe is fixedly connected to the outer surface of the rotating ring. When the hard alloy milling cutter is used for cutting a workpiece, cutting oil is uniformly sprayed to the surface of the hard alloy blade, so that the cutting force and friction are reduced, the abrasion of the hard alloy blade is reduced, the cutting efficiency and the surface quality are improved, the temperature of the milling cutter is reduced, high-temperature deformation is avoided, and the processing quality and the wear resistance are improved; and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a wear-resistant hard alloy milling cutter. Background Art

[0002] A milling cutter is a commonly used metal cutting tool. It uses a rotating tool to cut the metal on the surface of the workpiece to achieve the processing purpose. A milling cutter is usually composed of a blade, a handle and a cutting part. The commonly used blade materials include carbide, high-speed steel, ceramics, etc. Different materials are suitable for different workpiece materials and processing requirements. Milling cutters can be used to process various metal materials and non-metallic materials, such as steel, aluminum, copper, alloys, etc., and can also be used to process parts of various shapes, such as planes, curved surfaces, gears, etc., and are therefore widely used in metal processing, machinery manufacturing, shipbuilding, aviation manufacturing and other fields.

[0003] At present, when a carbide milling cutter is cutting a workpiece at high speed, its blade will generate a lot of heat due to cutting friction, which will cause the blade to deform due to high temperature. It will also cause the blade to wear quickly, affecting the service life of the milling cutter. For this reason, we propose a wear-resistant carbide milling cutter. Utility Model Content

[0004] The utility model aims to provide a wear-resistant cemented carbide milling cutter, which has the advantages of evenly spraying cutting oil onto the surface of the cemented carbide blade during the process of the cemented carbide milling cutter cutting a workpiece, reducing cutting force and friction, reducing the wear of the cemented carbide blade, and improving cutting efficiency and surface quality, while reducing the temperature of the milling cutter to avoid high-temperature deformation, improving processing quality and wear resistance, and extending service life. It solves the problem that the existing cemented carbide milling cutter generates a large amount of heat due to cutting friction during the high-speed cutting of workpieces, thereby causing the blade to deform due to high temperature, and also causing rapid wear of the blade, affecting the service life of the milling cutter.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant cemented carbide milling cutter, comprising a cemented carbide blade, a shank and a rotating ring, wherein a plurality of cemented carbide blades are equidistantly arranged in a circular array on the outer surface of the shank near the lower surface, an oil storage chamber is arranged inside the shank above the cemented carbide blade, a plurality of connecting ports are equidistantly arranged in a circular array on the outer surface of the shank near the upper surface, a rotating ring is rotatably mounted on the outer surface of the shank near the upper surface, an oil pipe is fixedly connected to the outer surface of the rotating ring, and oil injection holes are arranged on the outer surface of the shank between two adjacent cemented carbide blades, and the oil injection holes are connected to the oil storage chamber.

[0006] Preferably, a connector is provided at one end of the tool handle close to the upper surface, and the tool handle is fixedly connected to the milling machine via the connector to drive the tool handle to rotate, and complete the cutting process of the workpiece through the carbide blade.

[0007] Preferably, the communication port is located inside the rotating ring, and the rotating ring and the oil storage chamber are connected through the communication port, and the cutting oil inside the oil pipe enters the oil storage chamber through the rotating ring and the communication port.

[0008] Preferably, annular protrusions are provided on the inner wall of the rotating ring near the upper surface and the lower surface, annular sealing grooves are provided on the outer surface of the shank above and below the connecting port, and the two annular protrusions are respectively located inside the two annular sealing grooves.

[0009] Preferably, the inner walls of the two annular protrusions are fixedly mounted with sealing rings, and the gap between the annular protrusion and the annular sealing groove of the sealing ring plays a sealing role to prevent the cutting oil from leaking from the gap between the annular protrusion and the annular sealing groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model achieves the effect of uniformly spraying cutting oil onto the surface of the carbide blade during the process of the carbide milling cutter cutting a workpiece by arranging a tool handle, a carbide blade, an oil storage chamber, an oil spray hole, a rotating ring, a connecting port and an oil pipe, thereby reducing the cutting force and friction, reducing the wear of the carbide blade, and improving the cutting efficiency and surface quality, while reducing the temperature of the milling cutter, avoiding high-temperature deformation, improving the processing quality and wear resistance, and extending the service life. The cutting oil is input into the rotating ring from the oil pipe and enters the oil storage chamber through the connecting port. When the carbide blade cuts the workpiece, the cutting oil inside the oil storage chamber is uniformly sprayed onto the carbide blade through the oil spray holes distributed in the annular array, thereby reducing the cutting force and friction, reducing the wear of the carbide blade, and improving the cutting efficiency and surface quality, while reducing the temperature of the milling cutter, avoiding high-temperature deformation, improving the processing quality and wear resistance, and extending the service life.

[0012] 2. The utility model provides a sealing ring to seal the gap between the annular protrusion and the annular sealing groove, thereby preventing cutting oil from leaking out of the gap between the annular protrusion and the annular sealing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0016] Figure 4 It is a partial three-dimensional schematic diagram of the knife handle of the utility model.

[0017] Figure numerals: 1. carbide blade; 2. handle; 3. rotating ring; 4. connector; 5. oil pipe; 6. oil storage chamber; 7. connecting port; 8. annular sealing groove; 9. sealing ring; 10. annular protrusion; 11. oil injection hole. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figure 1-Figure 4 As shown, the utility model proposes a wear-resistant cemented carbide milling cutter, comprising a cemented carbide blade 1, a shank 2 and a rotating ring 3. A plurality of cemented carbide blades 1 are equidistantly arranged in a circular array at the outer surface of the shank 2 near the lower surface. A connecting head 4 is arranged at one end of the shank 2 near the upper surface. The shank 2 is fixedly connected to the milling machine through the connecting head 4 to drive the shank 2 to rotate, and the cutting process of the workpiece is completed by the cemented carbide blade 1. An oil storage chamber 6 is arranged inside the shank 2 at a position above the cemented carbide blade 1. A plurality of connecting ports 7 are equidistantly arranged in a circular array at the outer surface of the shank 2 near the upper surface. A rotating ring 3 is rotatably installed at the outer surface of the shank 2 near the upper surface. The connecting port 7 is located inside the rotating ring 3, and the rotating ring 3 and the oil storage chamber 6 are connected through the connecting port 7. The cutting oil inside the oil pipe 5 enters the oil storage chamber 6 through the rotating ring 3 and the connecting port 7.

[0020] Annular protrusions 10 are provided on the inner wall of the rotating ring 3 near the upper surface and the lower surface, annular sealing grooves 8 are provided on the outer surface of the tool handle 2 at positions above and below the connecting port 7, and the two annular protrusions 10 are respectively located inside the two annular sealing grooves 8, and sealing rings 9 are fixedly installed on the inner walls of the two annular protrusions 10. The sealing rings 9 seal the gap between the annular protrusions 10 and the annular sealing grooves 8 to prevent cutting oil from seeping out of the gap between the annular protrusions 10 and the annular sealing grooves 8. An oil pipe 5 is fixedly connected to the outer surface of the rotating ring 3, and an oil injection hole 11 is provided on the outer surface of the tool handle 2 between two adjacent carbide blades 1, and the oil injection hole 11 is connected to the oil storage chamber 6.

[0021] When the utility model is in use, cutting oil is input from the oil pipe 5 into the rotating ring 3, and enters the oil storage chamber 6 through the connecting port 7. When the cemented carbide blade 1 cuts a workpiece, the cutting oil inside the oil storage chamber 6 is evenly sprayed onto the cemented carbide blade 1 through the oil spray holes 11 distributed in the annular array, thereby reducing the cutting force and friction, reducing the wear of the cemented carbide blade 1, and improving the cutting efficiency and surface quality. At the same time, the temperature of the milling cutter is reduced, high-temperature deformation is avoided, the processing quality and wear resistance are improved, and the service life is extended.

[0022] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A wear-resistant cemented carbide milling cutter, comprising a cemented carbide blade (1), a shank (2) and a rotating ring (3), characterized in that: The outer surface of the shank (2) is provided with a plurality of hard alloy blades (1) at equal intervals in a circular array near the lower surface, the interior of the shank (2) is provided with an oil storage chamber (6) at a position above the hard alloy blades (1), the outer surface of the shank (2) is provided with a plurality of connecting ports (7) at equal intervals in a circular array near the upper surface, the outer surface of the shank (2) is provided with a rotating ring (3) rotatably mounted near the upper surface, the outer surface of the rotating ring (3) is fixedly connected with an oil pipe (5), and the outer surface of the shank (2) is provided with oil injection holes (11) between two adjacent hard alloy blades (1), and the oil injection holes (11) are connected with the oil storage chamber (6).

2. The wear-resistant cemented carbide milling cutter according to claim 1, characterized in that: A connector (4) is provided at one end of the knife handle (2) close to the upper surface.

3. The wear-resistant cemented carbide milling cutter according to claim 1, characterized in that: The communication port (7) is located inside the rotating ring (3), and the rotating ring (3) and the oil storage chamber (6) are connected via the communication port (7).

4. The wear-resistant cemented carbide milling cutter according to claim 1, characterized in that: The inner wall of the rotating ring (3) is provided with annular protrusions (10) near the upper surface and the lower surface, and the outer surface of the knife handle (2) is provided with annular sealing grooves (8) above and below the connecting opening (7), and the two annular protrusions (10) are respectively located inside the two annular sealing grooves (8).

5. The wear-resistant cemented carbide milling cutter according to claim 4, characterized in that: Sealing rings (9) are fixedly mounted on the inner walls of the two annular protrusions (10).

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