Composite milling cutter with multiple inner grooves

Abstract

The utility model relates to the technical field of precision machining tools, and discloses a composite multi-inner-groove milling cutter which comprises a cutter handle, a cutter body is fixedly arranged at the front end of the cutter handle, a stabilizing groove is formed in the middle of the front end face of the cutter body, an open hole is formed in the middle of the rear end in the stabilizing groove, and a plurality of cutting edges are fixedly arranged on the periphery of the cutter body. A plurality of chip containing grooves are formed in the positions, among the multiple cutting edges, of the periphery of the cutter body, the cutter body comprises an outer layer, a material layer is fixedly arranged on the inner side of the outer layer, and a base layer is fixedly arranged on the inner side of the material layer. When the cutter body is used, vibration and noise can be reduced, machining stability can be improved, the cutter body has high strength and temperature resistance, drilled chippings can be contained through the chipping containing groove, the chippings are prevented from splashing, the service life is prolonged, the utilization rate of the cutter body is improved, and the cutter body is convenient to use. And in the machining process, breakage and damage are not likely to happen.

Description

Technical Field

[0001] The utility model relates to the technical field of precision machining tools, in particular to a composite multi-inner groove milling cutter. Background Art

[0002] Precision machining is a high-precision manufacturing process designed to produce parts or components with strict size, shape and surface quality requirements. This processing method is often used to manufacture precision instruments, precision mechanical parts, automotive parts and aerospace parts. Milling cutters are a commonly used tool when performing processing. Milling cutters are mainly used for milling operations on milling machines. Milling cutters usually consist of a cutter body and a blade, and their design can be adapted to different milling operations and processing requirements.

[0003] The existing milling cutter drills at the position that needs to be processed during use, so as to be continuous and replaced according to the processing requirements. However, the milling cutter is prone to surface wear during use, and its service life is short, so it cannot be used continuously.

[0004] Therefore, the utility model provides a composite multi-inner groove milling cutter to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a composite multi-inner groove milling cutter, which increases the service life of the cutter body, reduces vibration and noise when the cutter body is in use, improves processing stability, and has higher strength and temperature resistance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite multi-inner groove milling cutter, comprising a handle, a cutter body is fixedly arranged at the front end of the handle, a stabilizing groove is opened in the middle of the front end surface of the cutter body, an opening is opened in the middle of the rear end of the stabilizing groove, a plurality of blades are fixedly arranged around the cutter body, and a plurality of chip grooves are opened around the cutter body between the plurality of blades;

[0007] The blade body comprises an outer layer, a material layer is fixedly arranged on the inner side of the outer layer, and a base layer is fixedly arranged on the inner side of the material layer;

[0008] Through the above technical solution, the tool body is arranged at the front end of the tool handle, so that the stabilizing groove opened at the front end of the tool body and the opening opened in the middle of the inner side of the stabilizing groove, the middle opening can reduce weight, dissipate heat, and reduce vibration, the stabilizing groove can reduce vibration and noise, and improve processing stability, the blades arranged around the tool body and the chip grooves opened between the blades, the multiple blade design can improve processing efficiency, and the chip grooves can accommodate the drilled chips to prevent the chips from splashing and extend the service life;

[0009] The outer layer in the knife body layering improves the wear resistance of the knife body during drilling, prevents the internal corrosion after the wear-resistant layer is damaged, and protects the inside of the knife body. The material layer on the inner side of the outer layer can enhance the strength and temperature resistance of the knife body during use, improves the hardness of the knife body during use, and increases the service life of the knife body.

[0010] Further, the outer layer comprises a wear-resistant layer, and an anti-corrosion layer is fixedly arranged inside the wear-resistant layer;

[0011] Through the above technical solution, the wear resistance during drilling is improved by the wear-resistant layer in the outer layer, and the anti-corrosion layer arranged inside the wear-resistant layer prevents the inside of the cutter body from being corroded after the wear-resistant layer is damaged.

[0012] Furthermore, the material layer includes a reinforcement layer, a heat-resistant layer is fixedly disposed inside the reinforcement layer, and a hardness layer is fixedly disposed inside the heat-resistant layer;

[0013] Through the above technical scheme, the overall strength of the cutter body is improved by setting a reinforcing layer in the material layer, the heat-resistant layer is set so that the cutter body can resist the high temperature of the drilling surface during drilling, and the hardness layer is set to improve the overall hardness of the cutter body.

[0014] Further, the material used for the wear-resistant layer in the outer layer is a diamond coating, and the material used for the anti-corrosion layer in the outer layer is an aluminum coating;

[0015] Through the above technical scheme, the diamond coating has excellent wear resistance and abrasion resistance, and is suitable for occasions with high requirements on the surface of cutting tools, molds and parts. It can significantly extend the service life of tools and workpieces. It has a smooth surface and a low friction coefficient, which can reduce cutting force and friction loss, improve processing efficiency and reduce energy consumption. The aluminum coating is applied inside the wear-resistant layer by spraying or coating to form an aluminum protective layer. Aluminum has good corrosion resistance and can effectively protect the internal material of the tool body from oxidation and corrosion.

[0016] Furthermore, the material of the strengthening layer in the material layer is cemented carbide, the material of the temperature-resistant layer in the material layer is high-speed steel, and the material of the hardness layer in the material layer is alumina ceramic;

[0017] Through the above technical solutions, cemented carbide has very high hardness, often exceeding that of traditional steel, good chemical stability, strong resistance to corrosion and oxidation, low thermal expansion coefficient and good processing performance, and can be processed with high precision. High-speed steel can maintain high hardness and strength at high temperatures and is not easy to soften or lose cutting performance. Therefore, it is suitable for high-speed cutting and high-temperature processing environments. Alumina ceramics have high hardness and wear resistance.

[0018] Further, a plurality of the blades are curved;

[0019] Through the above technical solution, the curved blade can better drill the processed surface.

[0020] Further, the spacing between the plurality of chip grooves and the plurality of cutting edges is the same;

[0021] Through the above technical solution, the debris is better stored during processing and the drilling process is made more stable.

[0022] The utility model has the following beneficial effects:

[0023] 1. The utility model proposes a composite multi-inner groove milling cutter, which is provided with a cutter body at the front end of the cutter handle, so that the stabilizing groove opened at the front end of the cutter body and the opening opened in the middle part of the inner side of the stabilizing groove, the middle opening can reduce weight, dissipate heat, and reduce vibration, the stabilizing groove can reduce vibration and noise, and improve processing stability, and the multiple blades are designed to improve processing efficiency through the blades arranged around the cutter body and the chip grooves opened between the blades, and the chip grooves can accommodate the drilled chips to prevent the chips from splashing and extend the service life.

[0024] 2. The composite multi-inner groove milling cutter proposed by the utility model is layered by being arranged on the cutter body. The material layer on the outside of the base layer can enhance the strength and temperature resistance of the cutter body during use, thereby improving the hardness of the cutter body during use. The outer layer arranged on the outside of the material layer can improve the wear resistance of the cutter body during drilling, and prevent the internal corrosion after the wear-resistant layer is damaged, thereby protecting the inside of the cutter body and improving the service life of the cutter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the axial side of the utility model;

[0026] Figure 2 This is a schematic diagram of the knife body structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the material layer structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the outer structure of the utility model.

[0029] Legend:

[0030] 1. Tool handle; 2. Tool body; 3. Blade; 4. Chip groove; 5. Stabilizing groove; 6. Opening; 201. Outer layer; 202. Material layer; 203. Base layer; 20101. Wear-resistant layer; 20102. Anti-corrosion layer; 20201. Reinforcement layer; 20202. Heat-resistant layer; 20203. Hardness layer. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-4 The utility model provides an embodiment: a composite multi-inner groove milling cutter, including a handle 1, a cutter body 2 is fixedly arranged at the front end of the handle 1, a stabilizing groove 5 is opened in the middle of the front end surface of the cutter body 2, and an opening 6 is opened in the middle of the rear end inside the stabilizing groove 5, and a plurality of blades 3 are fixedly arranged around the cutter body 2, and a plurality of chip grooves 4 are opened around the cutter body 2 between the plurality of blades 3. By setting the cutter body 2 at the front end of the handle 1, the stabilizing groove 5 opened at the front end of the cutter body 2 and the opening 6 opened in the middle of the inner side of the stabilizing groove 5, and the middle opening 6 can reduce weight, dissipate heat, and reduce vibration. The stabilizing groove 5 can reduce vibration and noise and improve processing stability. By setting the blades 3 around the cutter body 2 and the chip grooves 4 opened between the blades 3, the design of multiple blades 3 can improve processing efficiency, and the chip grooves 4 can accommodate drilled chips to prevent chip splashing and extend service life.

[0033] The blade body 2 includes an outer layer 201, a material layer 202 is fixedly arranged on the inner side of the outer layer 201, and a base layer 203 is fixedly arranged on the inner side of the material layer 202. The outer layer 201 in the layering of the blade body 2 can improve the wear resistance of the blade body 2 during drilling, and prevent the internal corrosion after the wear-resistant layer 20101 is damaged, thereby protecting the inside of the blade body 2. The material layer 202 on the inner side of the outer layer 201 can enhance the strength and temperature resistance of the blade body 2 during use, thereby improving the hardness of the blade body 2 during use and increasing the service life of the blade body 2.

[0034] The outer layer 201 includes a wear-resistant layer 20101, and an anti-corrosion layer 20102 is fixedly arranged on the inner side of the wear-resistant layer 20101. The wear-resistant layer 20101 in the outer layer 201 improves the wear resistance during drilling. The anti-corrosion layer 20102 arranged on the inner side of the wear-resistant layer 20101 prevents the inside of the cutter body 2 from being corroded after the wear-resistant layer 20101 is damaged. The material layer 202 includes a reinforcing layer 20201, and a heat-resistant layer 20202 is fixedly arranged on the inner side of the reinforcing layer 20201. A hardness layer 20203 is fixedly arranged on the inner side of the heat-resistant layer 2202. The reinforcing layer 20201 in the material layer 202 improves the overall strength of the cutter body 2. The heat-resistant layer 20202 allows the cutter body 2 to resist the high temperature of the drilling surface during drilling. The hardness layer 20203 improves the overall hardness of the cutter body 2.

[0035] The material used for the wear-resistant layer 20101 in the outer layer 201 is diamond coating, and the material used for the anti-corrosion layer in the outer layer 201 is aluminum coating. The diamond coating has excellent wear resistance and abrasion resistance, and is suitable for occasions with high requirements on the surface of cutting tools, molds and parts. It can significantly extend the service life of tools and workpieces. It has a smooth surface and a low friction coefficient, which can reduce cutting force and friction loss, improve processing efficiency and reduce energy consumption, and increase the drilling speed of the tool body 2 on the surface of the processed parts. The aluminum coating is applied to the inside of the wear-resistant layer 20101 by spraying or coating to form an aluminum protective layer. Aluminum has good corrosion resistance and can effectively protect the internal material of the tool body 2 from oxidation and corrosion.

[0036] The material of the reinforcing layer 20201 in the material layer 202 is cemented carbide, the material of the heat-resistant layer 20202 in the material layer 202 is high-speed steel, and the material of the hardness layer 20203 in the material layer 202 is alumina ceramic. Cemented carbide has a very high hardness, often exceeding that of traditional steel, good chemical stability, strong resistance to corrosion and oxidation, low thermal expansion coefficient and good processing performance, and can be processed with high precision. High-speed steel can maintain high hardness and strength at high temperatures and is not easy to soften or lose cutting performance. Therefore, it is suitable for high-speed cutting and high-temperature processing environments. Alumina ceramics have high hardness and wear resistance, which improves the overall resistance and hardness of the cutter body 2, thereby increasing the service life of the cutter body 2 and ensuring continuous use.

[0037] The multiple blades 3 are curved, and the curved blades 3 can better drill the processed surface. The multiple chip grooves 4 are at the same distance from the multiple blades 3, so that the chips are better stored during processing and the drilling process of the tool body 2 is more stable.

[0038] Working principle: by installing it on the tool handle 1, the tool body 2 at the front end of the tool handle 1 can be used to process and drill the part surface. The blade 3 and the chip groove 4 can reduce the splash of debris during drilling and make drilling more efficient. By opening a stabilizing groove 5 at the front end of the tool body 2 and an opening 6 in the middle of the inner side of the stabilizing groove 5, the middle opening 6 can reduce weight, dissipate heat, and reduce vibration. The stabilizing groove 5 can reduce vibration and noise, improve processing stability, and the service life of the tool body 2 is increased by layering the tool body 2.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite multi-inner groove milling cutter, comprising a shank (1), characterized in that: A knife body (2) is fixedly arranged at the front end of the knife handle (1); a stabilizing groove (5) is provided in the middle of the front end surface of the knife body (2); an opening (6) is provided inside the stabilizing groove (5) near the middle of the rear end; a plurality of blades (3) are fixedly arranged around the knife body (2); and a plurality of chip grooves (4) are provided around the knife body (2) between the plurality of blades (3); The blade body (2) comprises an outer layer (201), a material layer (202) is fixedly arranged on the inner side of the outer layer (201), and a base layer (203) is fixedly arranged on the inner side of the material layer (202).

2. A composite multi-inner groove milling cutter according to claim 1, characterized in that: The outer layer (201) comprises a wear-resistant layer (20101), and an anti-corrosion layer (20102) is fixedly arranged on the inner side of the wear-resistant layer (20101).

3. The composite multi-inner groove milling cutter according to claim 1, characterized in that: The material layer (202) comprises a reinforcing layer (20201), a heat-resistant layer (20202) is fixedly arranged on the inner side of the reinforcing layer (20201), and a hardness layer (20203) is fixedly arranged on the inner side of the heat-resistant layer (20202).

4. The composite multi-inner groove milling cutter according to claim 1, characterized in that: The material used for the wear-resistant layer (20101) in the outer layer (201) is a diamond coating, and the material used for the anti-corrosion layer in the outer layer (201) is an aluminum coating.

5. The composite multi-inner groove milling cutter according to claim 1, characterized in that: The material of the reinforcing layer (20201) in the material layer (202) is cemented carbide, the material of the heat-resistant layer (20202) in the material layer (202) is high-speed steel, and the material of the hardness layer (20203) in the material layer (202) is alumina ceramic.

6. The composite multi-inner groove milling cutter according to claim 1, characterized in that: The plurality of blades (3) are curved.

7. The composite multi-inner groove milling cutter according to claim 1, characterized in that: The spacings between the plurality of chip grooves (4) and the plurality of cutting edges (3) are the same.

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