Efficient pre-milling cutter with cooling air groove

Abstract

The utility model relates to the technical field of cutters, in particular to an efficient pre-milling cutter with cooling air grooves, which comprises a cutter body and a plurality of groups of air inlet grooves and chip grooves arranged on the cutter body, communicating channels for communicating the air inlet grooves and the chip grooves are arranged between the air inlet grooves and the chip grooves, and each air inlet groove comprises an opening part and a shielding part. The opening portion is in a horn shape, a tool apron is arranged on the tool body, a blade is detachably connected to the tool apron, the communicating channel comprises a first channel and a second channel, the first channel is arranged on the shielding portion, and the second channel is arranged on the chip groove. And the blade is made of a diamond material. And one end of the chip groove close to the edge of the cutter body is open. The shielding part forms a brim structure in front of the first channel and is used for increasing the air inlet amount and forming air pressure. The utility model solves the problem of cutter wear caused by cutting heat accumulation when a milling cutter is used for cutting a workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to an efficient pre-milling cutter with a cooling air groove. Background Art

[0002] In the fields of machining and manufacturing, cutting tools are indispensable key components. Milling cutters are mainly used for efficient cutting of hard materials and can maintain good performance under extreme working conditions. In the metal cutting industry, pre-milling cutters are usually used for preliminary shape machining of workpieces or removing excess materials to prepare for subsequent finer machining steps.

[0003] During the use of traditional pre-milling cutters, there are problems of cutting heat accumulation: if the heat generated during high-speed cutting cannot be dissipated in time, it will cause softening of the tool material and accelerate wear. Moreover, the chips generated during cutting may wrap around the tool, affecting the cutting effect and even causing tool damage.

[0004] Now, in order to solve the above technical problems, the utility model designs an efficient pre-milling cutter with a cooling air groove. Content of the Utility Model

[0005] The utility model provides an efficient pre-milling cutter with a cooling air groove, aiming to solve the problem of tool wear caused by cutting heat accumulation during cutting of workpieces with a milling cutter. The technical solution is as follows:

[0006] An efficient pre-milling cutter with a cooling air groove, characterized in that: it includes a cutter body and a plurality of groups of air inlet grooves and chip discharge grooves opened on the cutter body. A communication channel connecting the air inlet groove and the chip discharge groove is arranged between the air inlet groove and the chip discharge groove. The air inlet groove includes an open part and a shielding part. The open part is in a horn shape. A tool holder is arranged on the cutter body, and a cutting blade is detachably connected to the tool holder. The communication channel includes a first channel and a second channel. The first channel is arranged on the shielding part, and the second channel is arranged on the chip discharge groove.

[0007] Based on the above technical solution, the cutting blade is made of diamond material.

[0008] Based on the above technical solution, one end of the chip discharge groove close to the edge of the cutter body is open.

[0009] Preferably, the chip discharge groove is an arc-shaped groove.

[0010] Based on the above technical solution, the shielding part forms a brim structure in front of the first channel for increasing the air intake volume and forming air pressure.

[0011] Preferably, the diameter of the first channel is larger than the diameter of the second channel.

[0012] Advantageous Effects

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: on the one hand, the present pre-milling cutter can improve the cooling efficiency: the open part is designed in a horn shape, which can effectively increase the air intake volume and reduce the resistance when the air flow enters. The shielding part forms a brim structure in front of the first channel, increasing the wind pressure and helping to blow the cooling medium towards the chip removal groove. On the other hand, the present pre-milling cutter can also improve the chip removal performance: the air supply with this structure can assist in preventing the chips from being re-involved in the cutting area, ensuring the smooth progress of the machining process, helping the chips to be smoothly discharged from the chip removal groove, and reducing the accumulation of chips on the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0015] Figure 1 : Structural schematic diagram of the present utility model;

[0016] Figure 2 : Structural schematic diagram of the air inlet groove and the chip removal groove of the present utility model;

[0017] Figure 3 : Side view of the present utility model;

[0018] Figure 4 : Figure 3 Cross-sectional view taken along line B-B in

[0019] Figure 5 : Figure 4 Enlarged view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further illustrates the present utility model in conjunction with the drawings and examples:

[0021] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] As Figure 1 and Figure 2 shown, a high-efficiency pre-milling cutter with a cooling air groove, characterized in that: it includes a cutter body 1 and a plurality of groups of air inlet grooves 2 and chip discharge grooves 4 opened on the cutter body 1. A communication channel 3 connecting the air inlet groove 2 and the chip discharge groove 4 is provided between the air inlet groove 2 and the chip discharge groove 4. The air inlet groove 2 includes an open part 21 and a shielding part 22. The open part 21 is in a horn shape. A tool holder 5 is provided on the cutter body 1, and a blade 6 is detachably connected to the tool holder 5.

[0025] As Figures 3 to 5 shown, the communication channel 3 includes a first channel 31 and a second channel 32.

[0026] The horn-shaped open part 21 can increase the air intake. The opening area of the horn-shaped open part 21 gradually increases, which can effectively guide more air to flow in and increase the air intake. Compared with a straight cylindrical open part, the horn-shaped design can reduce the resistance when air enters, making the air flow smoother.

[0027] The design of the horn-shaped open part 21 helps to form a local high-pressure area at the air inlet, increasing the air pressure and helping to direct the cold air to the communication channel 3.

[0028] Furthermore, the horn-shaped open part 21 is easier to clean because its shape makes it not easy to accumulate dust or chips inside.

[0029] The blade 6 is made of diamond material.

[0030] One end of the chip fluting 4 near the edge of the tool body 1 is open. The open end can serve as the outlet for chips, facilitating the smooth discharge of chips, avoiding chip clogging of the tool, and reducing cutting resistance. The faster the chips are removed, the more the continuity and efficiency of the cutting process can be ensured. The chip fluting 4 is an arc-shaped fluting to facilitate better chip discharge.

[0031] The chip fluting 4 is an arc-shaped fluting. The arc-shaped chip fluting can better guide the chips to discharge smoothly along the fluting channel, reduce the accumulation of chips on the tool, and avoid chip re-rolling into the cutting area. The chips slide along the fluting wall, thereby improving the chip discharge efficiency and ensuring the continuity of the machining process.

[0032] The shielding part 22 forms an eaves structure in front of the first channel 31 for increasing the air intake volume and forming air pressure. The shielding part 22 has a relatively large opening, which can guide more air to enter, increase the air pressure entering the connecting channel 3, and help effectively transport the air to the cutting area.

[0033] The eaves structure formed by the shielding part 22 can increase the air volume entering the first channel 31, thereby increasing the air pressure, and can also better guide the air flow into the first channel 31 to ensure that the air can be smoothly transported to the cutting area, optimizing the air flow guidance.

[0034] The diameter of the first channel 31 is larger than that of the second channel 32. The larger diameter of the first channel can allow more air to enter, thereby increasing the air pressure entering the second channel.

[0035] During use, the high-efficiency pre-milling cutter starts to work, and a cooling medium such as compressed air is inhaled through the open part 21. The open part 21 is designed in a flared shape, which can effectively increase the air intake volume and reduce the resistance when the air flow enters. The shielding part 22 is located in front of the first channel 31 and forms an eaves structure, and its opening is larger than the aperture of the first channel 31, which helps to increase the air pressure entering the first channel.

[0036] Subsequently, the cooling medium (compressed air) passes through the first channel 31. The larger diameter of this channel can further increase the air pressure and optimize the air flow guidance. The diameter of the second channel 32 is smaller than that of the first channel 31, and this design helps to increase the air pressure and guide the cooling medium to the chip fluting.

[0037] As the cooling medium (compressed air) passes through the second channel 32, it is guided to the chip fluting 4. The chip fluting 4 is designed as an arc-shaped fluting, which helps the chips to discharge smoothly, reduces chip accumulation, and improves the chip discharge efficiency. The cooling medium continues to flow in the chip fluting 4, which can not only help the chips to be discharged from the chip fluting, but also take away the heat generated during the cutting process, reduce the temperature of the cutting area, and thus improve the cooling effect.

[0038] The above has described the present utility model by way of example, but the present utility model is not limited to the above specific embodiments. Any modification or variation based on the present utility model falls within the scope of protection claimed by the present utility model.

Claims

1. An efficient pre-milling cutter with a cooling air groove, characterized in that: It includes a tool body (1), and a number of groups of air inlet grooves (2) and chip removal grooves (4) opened on the tool body (1). A connecting channel (3) connecting the air inlet groove (2) and the chip removal groove (4) is provided between the air inlet groove (2) and the chip removal groove (4). The air inlet groove (2) includes an open part (21) and a shielding part (22). The open part (21) is in a flared shape. A tool holder (5) is provided on the tool body (1), and a blade (6) is detachably connected to the tool holder (5). The connecting channel (3) includes a first channel (31) and a second channel (32). The first channel (31) is provided on the shielding part (22), and the second channel (32) is provided on the chip removal groove (4).

2. The high-efficiency pre-milling cutter with a cooling air groove according to claim 1, characterized in that: The blade (6) is made of diamond material.

3. The high-efficiency pre-milling cutter with a cooling air groove according to claim 1, characterized in that: One end of the chip removal groove (4) close to the edge of the tool body (1) is open.

4. The high-efficiency pre-milling cutter with a cooling air groove according to claim 1, wherein: The chip removal groove (4) is an arc-shaped groove.

5. The high-efficiency pre-milling cutter with a cooling air groove according to claim 1, wherein: The shielding part (22) forms a brim structure in front of the first channel (31) for increasing the air intake volume and forming air pressure.

6. The high-efficiency pre-milling cutter with a cooling air groove according to claim 1, characterized in that: The diameter of the first channel (31) is larger than the diameter of the second channel (32).

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