Hard alloy milling cutter

Abstract

The utility model relates to the technical field of milling cutters, in particular to a hard alloy milling cutter. According to the technical scheme, the hard alloy milling cutter comprises hard alloy milling cutter blades, a sleeve and a hard alloy milling cutter handle, and the multiple hard alloy milling cutter blades are arranged on the outer surface, close to the lower surface, of the hard alloy milling cutter handle in an annular array at equal intervals. A sleeve is fixedly connected to the position, above the hard alloy milling cutter blade, of the outer surface of the hard alloy milling cutter handle in a sleeving mode, and a plurality of communicating openings are formed in the upper surface of the sleeve in an annular array at equal intervals. In the process that the hard alloy milling cutter rotates and cuts a workpiece, air is blown to the blade part, workpiece chips generated in the cutting process are blown away, the influence on workpiece machining is avoided, meanwhile, the machining precision of the workpiece is improved, the blade part of the hard alloy milling cutter is cooled, and the service life of the hard alloy milling cutter is prolonged. Therefore, abrasion of the blade part is reduced, and the service life of the hard alloy milling cutter is prolonged.

Description

Technical Field

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

[0002] A milling cutter is a cutting tool used for metal processing. It is usually composed of a cutter body, a carbide milling cutter handle, a cutting edge and a blade. It cuts metal workpieces by rotating the blade. It is often used for processing planes, curved surfaces, grooves, holes and other complex shapes. It is widely used in mechanical processing, aerospace, automobile manufacturing, mold manufacturing, electronic equipment and other industries. A carbide milling cutter refers to a milling cutter made of carbide, which has better strength and corrosion resistance.

[0003] At present, when a cemented carbide milling cutter is used to cut a workpiece, a large amount of workpiece debris will be generated and accumulated in the processing area of ​​the workpiece, which will affect the cutting of the workpiece by the cemented carbide milling cutter and reduce the processing accuracy of the workpiece. In addition, during the long-term cutting process of the cemented carbide milling cutter, the temperature of the blade is high and the wear is large, which reduces the service life. For this reason, we propose a cemented carbide milling cutter. Utility Model Content

[0004] The utility model aims to provide a cemented carbide milling cutter, which has the advantages that when the cemented carbide milling cutter rotates and cuts the workpiece, air is blown toward the blade to blow away the workpiece debris generated in the cutting process, thereby avoiding affecting the processing of the workpiece and improving the processing accuracy of the workpiece. It also has the advantage of cooling the blade of the cemented carbide milling cutter, thereby reducing the wear of the blade and delaying the service life of the cemented carbide milling cutter. It solves the problem that in the process of cutting the workpiece with the current cemented carbide milling cutter, more workpiece debris will be generated and accumulated in the processing area of ​​the workpiece, which will affect the cutting of the workpiece by the cemented carbide milling cutter and reduce the processing accuracy of the workpiece. In addition, in the process of long-term cutting processing of the cemented carbide milling cutter, the blade temperature is high, the wear is large, and the service life is reduced.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a carbide milling cutter, comprising a carbide milling cutter blade, a sleeve and a carbide milling cutter handle, wherein the outer surface of the carbide milling cutter handle is close to the lower surface and is provided with a plurality of carbide milling cutter blades equidistantly in a circular array, the outer surface of the carbide milling cutter handle is fixedly sleeved with a sleeve at a position above the carbide milling cutter blade, the upper surface of the sleeve is provided with a plurality of connecting ports equidistantly in a circular array, the upper surface of the sleeve is welded with an air inlet hood at a position above each connecting port, and the outer surface of each of the air inlet hoods is provided with an air inlet.

[0006] Preferably, a connecting end is provided at one end of the cemented carbide milling cutter handle away from the cemented carbide milling cutter blade, and the cemented carbide milling cutter handle and the milling machine are fixedly connected via the connecting end.

[0007] Preferably, the sleeve and the carbide milling cutter handle are fixedly connected by screws, and the sleeve connected by the screws is easy to disassemble and assemble, so as to facilitate the reuse of the sleeve.

[0008] Preferably, a shrinking tube is welded to the lower surface of the sleeve, and the air flow gap between the outer surface of the carbide milling cutter handle and the inner wall of the shrinking tube gradually decreases from top to bottom. When the air inside the sleeve passes through the shrinking tube, the flowing air is pressurized, so that the air can be better blown to the carbide milling cutter blade, and the debris produced by the workpiece processing can be better blown away.

[0009] Preferably, the necked tube is funnel-shaped.

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

[0011] 1. The utility model provides a carbide milling cutter handle, a carbide milling cutter blade, a sleeve, a connecting port, an air inlet cover and an air inlet, so that when the carbide milling cutter rotates and cuts the workpiece, air is blown to the blade, and the workpiece debris generated in the cutting process is blown away, thereby avoiding affecting the processing of the workpiece, and at the same time improving the processing accuracy of the workpiece, and cooling the blade of the carbide milling cutter, thereby reducing the wear of the blade and delaying the service life of the carbide milling cutter. The carbide milling cutter handle rotates and passes through the carbide milling cutter blade. When cutting the workpiece, the outside air also enters the air inlet hood through the air inlet, and enters the sleeve through the connecting port, and flows along the gap between the inner wall of the sleeve and the outer surface of the carbide milling cutter handle, and blows from top to bottom to the carbide milling cutter blade, so that the debris of the workpiece produced during the cutting process is blown away, avoiding the accumulation of workpiece debris in the processing area of ​​the workpiece and affecting the processing, and also improving the processing accuracy. At the same time, the flowing air can also take away the heat of the carbide milling cutter blade, so that the temperature of the carbide milling cutter blade is reduced, thereby reducing the wear of the carbide milling cutter blade and increasing the service life.

[0012] 2. The utility model achieves the effect of enabling the air inside the sleeve to be better blown toward the carbide milling cutter blade by arranging the shrinking tube. The air flow gap between the outer surface of the carbide milling cutter handle and the inner wall of the shrinking tube gradually decreases from top to bottom. When the air inside the sleeve passes through the shrinking tube, the flowing air is pressurized, so that the air is better blown toward the carbide milling cutter blade and the debris generated by the workpiece processing can be better blown away. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 It is a partial three-dimensional schematic diagram of the casing of the utility model;

[0015] Figure 3 It is a schematic diagram of the main structure of the utility model.

[0016] Figure numerals: 1. carbide milling cutter blade; 2. shrinking tube; 3. sleeve; 4. air inlet cover; 5. carbide milling cutter handle; 6. connecting end; 7. air inlet; 8. connecting port. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Embodiment 1

[0019] like Figure 1-Figure 3 As shown, a cemented carbide milling cutter proposed by the utility model comprises a cemented carbide milling cutter blade 1, a sleeve 3 and a cemented carbide milling cutter handle 5. A plurality of cemented carbide milling cutter blades 1 are arranged in a circular array at equal intervals on the outer surface of the cemented carbide milling cutter handle 5 near the lower surface. A connecting end 6 is arranged at one end of the cemented carbide milling cutter handle 5 away from the cemented carbide milling cutter blade 1. The cemented carbide milling cutter handle 5 is fixedly connected to a milling machine via the connecting end 6. A sleeve 3 is fixedly connected to the outer surface of the carbide milling cutter handle 5 at a position above the carbide milling cutter blade 1. The lower part of the sleeve 3 is opened, and the sleeve 3 and the carbide milling cutter handle 5 are fixedly connected by screws. The sleeve 3 connected by screws is easy to disassemble and assemble, so as to facilitate the reuse of the sleeve 3. A plurality of connecting ports 8 are equidistantly arranged on the upper surface of the sleeve 3 in a circular array. An air inlet hood 4 is welded on the upper surface of the sleeve 3 at a position above each connecting port 8, and an air inlet hood 7 is arranged on the outer surface of each air inlet hood 4.

[0020] When the utility model is in use, when the carbide milling cutter handle 5 rotates and cuts the workpiece through the carbide milling cutter blade 1, the outside air also enters the air inlet cover 4 through the air inlet 7, and enters the inside of the sleeve 3 along the connecting port 8, and flows along the gap between the inner wall of the sleeve 3 and the outer surface of the carbide milling cutter handle 5, and blows from top to bottom to the carbide milling cutter blade 1, so that the debris of the workpiece produced during the cutting process is blown away, avoiding the accumulation of workpiece debris in the processing area of ​​the workpiece and affecting the processing, and also improving the processing accuracy. At the same time, the flowing air can also take away the heat of the carbide milling cutter blade 1, so that the temperature of the carbide milling cutter blade 1 is reduced, thereby reducing the wear of the carbide milling cutter blade 1 and increasing the service life.

[0021] Embodiment 2

[0022] like Figure 1-Figure 3As shown, a cemented carbide milling cutter proposed by the utility model, compared with embodiment 1, this embodiment also includes that a shrinking tube 2 is welded on the lower surface of the sleeve 3, the shrinking tube 2 is funnel-shaped, and the air flow gap between the outer surface of the cemented carbide milling cutter handle 5 and the inner wall of the shrinking tube 2 gradually decreases from top to bottom.

[0023] In this embodiment, when the air inside the sleeve 3 passes through the shrinking tube 2, the shrinking tube 2 pressurizes the flowing air, so that the air is better blown toward the carbide milling cutter blade 1, and the debris generated by the workpiece processing can be better blown away.

[0024] 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 cemented carbide milling cutter, comprising a cemented carbide milling cutter blade (1), a sleeve (3) and a cemented carbide milling cutter handle (5), characterized in that: The outer surface of the carbide milling cutter handle (5) is provided with a plurality of carbide milling cutter blades (1) at equal intervals in a circular array near the lower surface; the outer surface of the carbide milling cutter handle (5) is fixedly sleeved with a sleeve (3) at a position above the carbide milling cutter blade (1); the upper surface of the sleeve (3) is provided with a plurality of connecting ports (8) at equal intervals in a circular array; an air inlet hood (4) is welded to the upper surface of the sleeve (3) at a position above each connecting port (8); and an air inlet (7) is provided on the outer surface of each of the air inlet hoods (4).

2. A cemented carbide milling cutter according to claim 1, characterized in that: The end of the cemented carbide milling cutter handle (5) facing away from the cemented carbide milling cutter blade (1) is provided with a connecting end (6).

3. A cemented carbide milling cutter according to claim 1, characterized in that: The sleeve (3) and the carbide milling cutter handle (5) are fixedly connected via screws.

4. A cemented carbide milling cutter according to claim 1, characterized in that: A shrinking tube (2) is welded to the lower surface of the sleeve (3).

5. A cemented carbide milling cutter according to claim 4, characterized in that: The necked tube (2) is funnel-shaped.

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