Vibration cutter and vibration cutter laser cladding process thereof

Abstract

The invention belongs to the technical field of vibration cutter manufacturing processes, and particularly relates to a vibration cutter and a vibration cutter laser cladding process thereof.The vibration cutter laser cladding process includes the following steps that high-hardness and high-abrasion-resistance materials such as alloy steel are selected; the hardness of the cutter body material is increased to a certain extent by a quenching process; and the powder alloy is uniformly cladded to the blade of the vibration cutter through laser cladding equipment. And a special machine tool and a special fixture are adopted before, so that the vibration cutter blank is mounted on laser cladding equipment. According to the method, raw materials of alloy steel materials are selected to be subjected to quenching treatment and surface treatment, then the blade faces of the alloy steel raw materials are evenly cladded with powder alloy through laser cladding equipment, then the cladded vibration cutter is subjected to annealing and polishing treatment, and therefore the blade and the cutter body of the vibration cutter obtained after accurate grinding are fully fused, and the vibration cutter quality is improved. The hardness and wear resistance of the alloy at the cutting edge are ensured, and the strength and toughness of the cutter body are also ensured, so that the service life of the vibration cutter is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of vibration tool manufacturing technology, and specifically relates to a vibration tool and a vibration tool laser cladding process thereof. Background Art

[0002] The vibrating knife cutter is part of an automatic cutting machine, which is a tool commonly used to cut various materials. Its principle is based on the high-frequency vibration of the vibrating knife. The following is a brief description of the working principle of the vibrating knife cutter: The oscillating knife (automatic cutting knife) is the core component of the oscillating knife cutting machine. It is usually driven by a motor and converts linear motion into oscillating motion through a connecting rod mechanism. The frequency of the oscillating knife is usually between thousands and tens of thousands of times per minute. At present, conventional oscillating knives on the market are usually made of a single metal material with consistent overall hardness and toughness.

[0003] The vibrating motion of the oscillating knife (automatic cutting machine cutter) causes it to produce high-frequency violent vibrations when it contacts the material. When the oscillating knife contacts the material to be cut, the material begins to be sheared and cut due to the vibration and shock.

[0004] The oscillating knife (automatic cutting machine cutter) cuts the material by high-frequency vibration. Compared with traditional cutting methods, the oscillating knife cutter reduces the resistance during cutting. This is because the oscillating knife can easily penetrate the material during the cutting process, reducing the friction and resistance during cutting, making cutting easier and more efficient.

[0005] Vibrating knives (automatic cutting machine knives) have been widely used in the fields of clothing manufacturing, furniture manufacturing, textile industry, medical equipment manufacturing, handicraft production, electronic appliances, etc., such as the processing and manufacturing of leather, luggage, cloth, plastic, paper, etc. The traditional design of vibrating knives often adopts a single alloy material for one-piece molding. This structure limits the durability of its cutting blade part, making it difficult for the tool to maintain a good cutting effect and life after long-term use. If the vibrating knife is made of high-alloy materials as a whole, it will not only be costly, but also lead to a large amount of unnecessary waste of high-quality materials. In addition, in the manufacturing process of traditional vibrating knives, due to the overall quenching process, the hardness of the knife body is relatively high, the brittleness is relatively large, and the toughness is insufficient. The unstable phenomenon of the knife body breaking is prone to occur during use. Summary of the invention

[0006] The purpose of the present invention is to provide a vibrating tool and a vibrating tool cladding process thereof. The traditional vibrating knife (automatic cutting machine cutter) is often designed to be integrally formed with a single alloy material. This structure limits the durability of the cutting blade, making it difficult for the tool to maintain a good cutting effect and life after long-term use. If the entire vibrating knife (automatic cutting machine cutter) is made of high-alloy materials, it will not only be costly, but also lead to a large amount of unnecessary waste of high-quality materials. In addition, in the manufacturing process of the traditional vibrating knife (automatic cutting machine cutter), due to the overall quenching process, the hardness of the knife body is relatively high, the brittleness is relatively large, and the toughness is insufficient, which makes it easy for the knife body to break during use.

[0007] To achieve the above object, the present invention provides the following technical solution: a vibrating tool and a vibrating tool cladding process thereof, comprising the following steps: S1. Raw material preparation: Select materials with high hardness and high wear resistance, such as high-speed steel and tool steel.

[0008] S2. Quenching: Use an advanced high-frequency induction heating furnace to uniformly heat the vibrating knife (automatic cutting bed knife) to above the critical temperature, and then immediately immerse it in the quenching medium to ensure rapid cooling from the surface to the core.

[0009] S3, surface treatment: remove burrs on the surface of the quenched steel material, and then straighten and grind the steel material.

[0010] S4. Grinding and cleaning: Place the roughly ground steel raw material into the grinder for grinding, and at the same time clean and remove the oil and rust on the surface.

[0011] S5, Laser Cladding: The powder alloy is evenly clad to the blade of the vibration knife (automatic cutting bed cutting knife) through the laser cladding equipment. Before that, a special machine tool special fixture is used to install the vibration knife (automatic cutting bed cutting knife) blade blank on the laser cladding equipment.

[0012] S6. Surface reprocessing: Use a special cutting machine to cut off the excess raised parts on the surface of the vibrating knife (automatic cutting machine cutter) after cladding.

[0013] S7, primary annealing: placing the clad vibrating knife (automatic cutting machine knife) into an annealing furnace for primary annealing.

[0014] S8. Debugging inspection: Check the internal particles of the vibrating knife (automatic cutting machine knife) after the initial annealing and the bonding condition of the cladding surface.

[0015] S9. Rough grinding of surface: Rough grinding of the alloy steel surface of the blade of the oscillating knife (automatic cutting machine cutter) and the back of the oscillating knife (automatic cutting machine cutter).

[0016] S10, secondary annealing: performing secondary annealing on the vibrating knife after rough grinding.

[0017] S11. Tool handle trimming: Use a special cutting machine to cut off the tool handle of the vibration knife (automatic cutting machine cutter) after secondary annealing.

[0018] S12, Drilling installation holes: Drill holes in the tool handle using a special drilling machine.

[0019] S13, fine grinding of vibration knife: the vibration knife (automatic cutting machine knife) is finely processed and ground after the knife handle is cut off.

[0020] S14, quality inspection: The polished vibration knife (automatic cutting machine knife) shall be subjected to quality inspection, including size inspection, hardness test and wear resistance test.

[0021] As a preferred vibrating tool and its vibrating tool laser cladding process of the present invention, the powder alloy in the laser cladding in S5 is composed of nickel (Ni), chromium (Cr), molybdenum (Mo), silicon (Si), vanadium (V), tungsten (W) and other elements, wherein the other elements include manganese (Mn), phosphorus (P), copper (Cu) and tin (Sn), and these elements affect the properties of the powder alloy in different combinations, such as changing the hardness, toughness, wear resistance or machinability.

[0022] As a preferred embodiment of a vibrating tool and its vibrating tool laser cladding process of the present invention, a high-power laser cladding machine is used in the laser cladding process in S5, wherein during cladding, the cladding speed and cladding thickness parameters need to be controlled to ensure the uniformity and quality of the cladding layer.

[0023] As a preferred embodiment of the vibrating tool and the vibrating tool laser cladding process thereof of the present invention, during the laser cladding process in S5, the tool is assembled on a special fixture, wherein the special fixture is a cube fixture.

[0024] As a preferred vibrating tool and its vibrating tool laser cladding process of the present invention, the S4 grinding and cleaning removes oil, rust impurities and oxide layer on the surface of the vibrating tool raw material to ensure that the tool surface is clean so that the powder alloy cladding material can be firmly attached to the blade in the subsequent S5 laser cladding process.

[0025] As a preferred embodiment of a vibrating tool and its vibrating tool laser cladding process of the present invention, in the S2 quenching process, the quenching medium can be selected from different media according to the process, such as water, brine, oil, and polymer solution.

[0026] As a preferred vibrating tool and its vibrating tool laser cladding process of the present invention, the S12 fine grinding vibrating tool process performs fine machining and grinding on the back of the vibrating tool, the blade tip bevel, two large surfaces and the powder alloy surface, wherein the rotation speed is: 20,000 to 40,000 rpm.

[0027] A vibrating tool, according to any one of the vibrating tool laser cladding processes described in claims 1-7, wherein one end of the tool handle is connected to a blade body, the end of the tool handle opposite to the blade body is connected to a mounting plate, and a blade is provided on one side of the blade body.

[0028] As a preferred embodiment of a vibrating tool and its vibrating tool laser cladding process of the present invention, the surface length of the blade is 3 mm, and the handle, blade body and mounting plate are made in one piece.

[0029] Compared with the prior art, the present invention has the following beneficial effects: The present invention first selects the raw material of alloy steel material for quenching treatment, while ensuring that the knife body has a certain strength and hardness, taking into account the toughness of the knife body, so that the vibration knife (automatic cutting machine cutter) can be greatly reduced in the process of use. At the same time, the raw material is surface treated to remove the burrs and impurities on the surface of the alloy steel raw material, and then the oil and rust on the surface of the alloy steel material are cleaned, and the cladding position of the knife body is polished to ensure that the cladding position is clean and free of foreign matter. The knife body is fixed by a special clamp, and a special laser cladding equipment is used to start laser cladding of the raw material knife body, so that the corresponding powder alloy is evenly clad at the corresponding position, and then the clad vibration knife (automatic cutting machine cutter) is annealed and polished, so that the blade and the blade of the finely ground vibration knife (automatic cutting machine cutter) are fully integrated. The vibration knife (automatic cutting machine cutter) produced by this process ensures that the blade has sufficient sharpness and wear resistance, while taking into account the toughness of the knife body, greatly improving the service life of the vibration knife (automatic cutting machine cutter). BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the vibrating knife of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the vibrating knife of the present invention; Figure 3 It is a schematic diagram of the vibrating knife cladding process flow of the present invention.

[0031] In the figure: 1. handle; 2. blade; 3. tip; 4. mounting plate; 5. blade. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-3 The present invention provides the following technical solution: a vibration tool and a vibration tool cladding process thereof, comprising the following steps: S1. Raw material preparation: Select materials with high hardness and high wear resistance, such as alloy steel.

[0034] S2. Quenching: Use an advanced high-frequency induction heating furnace to uniformly heat the vibrating knife (automatic cutting bed knife) to above the critical temperature, and then immediately immerse it in the quenching medium to ensure rapid cooling from the surface to the core.

[0035] S3, surface treatment: remove burrs on the surface of the quenched steel material, and then straighten and grind the steel material.

[0036] S4. Grinding and cleaning: Place the roughly ground steel raw material into the grinder for grinding, and at the same time clean and remove the oil and rust on the surface.

[0037] S5, Laser Cladding: The powder alloy is evenly clad to the blade of the vibration knife (automatic cutting bed cutting knife) through the laser cladding equipment. Before that, a special machine tool and special fixture are used to install the vibration knife (automatic cutting bed cutting knife) blade blank on the laser cladding equipment.

[0038] S6. Surface reprocessing: Use a special cutting machine to cut off the excess raised parts on the surface of the vibrating knife (automatic cutting machine cutter) after cladding.

[0039] S7, primary annealing: placing the clad vibrating knife (automatic cutting machine knife) into an annealing furnace for primary annealing.

[0040] S8. Debugging inspection: Check the internal particles of the vibrating knife (automatic cutting machine knife) after the initial annealing and the bonding condition of the cladding surface.

[0041] S9. Rough grinding of surface: Rough grinding of the alloy steel surface of the blade of the oscillating knife (automatic cutting machine cutter) and the back of the oscillating knife (automatic cutting machine cutter).

[0042] S10, secondary annealing: perform secondary annealing on the vibrating knife (automatic cutting machine cutting knife) after rough grinding.

[0043] S11. Tool handle trimming: Use a special cutting machine to cut off the tool handle of the vibration knife (automatic cutting machine cutter) after secondary annealing.

[0044] S12, Drilling installation holes: Drill holes in the tool handle using a special drilling machine.

[0045] S13, fine grinding of vibration knife: the vibration knife (automatic cutting machine knife) is finely processed and ground after the knife handle is cut off.

[0046] S14, quality inspection: The polished vibration knife (automatic cutting machine knife) shall be subjected to quality inspection, including hardness test and wear resistance test.

[0047] Preferably, the powder alloy in the laser cladding in S5 is composed of nickel (Ni), chromium (Cr), molybdenum (Mo), silicon (Si), vanadium (V), tungsten (W) and other elements, wherein the other elements include manganese (Mn), phosphorus (P), copper (Cu) and tin (Sn), and these elements affect the properties of the powder alloy in different combinations, such as changing the hardness, toughness, wear resistance or machinability.

[0048] Preferably: a high-power laser cladding machine is used in the laser cladding process in S5, wherein during cladding, the cladding speed and cladding thickness parameters need to be controlled to ensure the uniformity and quality of the cladding layer.

[0049] Preferably: during the laser cladding process in S5, the tool is assembled on a special fixture, wherein the special fixture is a cubic fixture, and the corresponding position can be adjusted according to different cladding shapes. In addition, the role of the laser is to melt and combine the cladding material and the surface of the tool body to be clad by high-temperature heating. During the cladding process, it is necessary to pay close attention to the cladding state of the tool and the distribution of the cladding material. The cladding layer after cladding is quickly solidified by heating or other means to improve its hardness and wear resistance. The laser cladding process specifically includes: 1. Surface pretreatment of the vibrating knife (automatic cutting machine cutter), cleaning the surface dirt, and ensuring that there are no impurities in the cladding area; 2. Selecting a suitable cladding layer material, according to the material, performance requirements and working environment of the workpiece, select a suitable cladding layer material, specifically for this scheme, select powder alloy; 3. The sample obtains the appropriate process parameters, and the optimal laser power, scanning speed, spot size and other process parameters are determined through experiments to ensure the quality and performance of the cladding layer; 4. Laser cladding, pre-set or synchronously feed the cladding material into the molten pool, use the laser beam to melt, and form a metallurgical cladding layer; 5. Post-processing, the cladding layer is subjected to necessary grinding and polishing to meet the use requirements of the workpiece.

[0050] Optimum: S4 grinding and cleaning removes oil, rust and impurities on the surface of the vibrating knife (automatic cutting machine knife) raw material to ensure that the tool surface is clean so that the powder alloy cladding material can be firmly attached to the blade in the subsequent S5 laser cladding process.

[0051] Preferably: in the S2 quenching process, the quenching medium can be selected from different media according to the process, such as water, brine, oil, polymer solution.

[0052] Preferably, during the S12 fine grinding of the vibration knife, the back of the vibration knife (automatic cutting machine cutting knife), the bevel of the blade tip, the two major surfaces and the powder alloy surface are finely ground, wherein the rotation speed is: 20,000 to 40,000 rpm.

[0053] Preferably: a vibrating tool, according to any one of the vibrating tool cladding processes of claims 1-8, one end of the handle 1 is connected to the blade 2, the end of the handle 1 opposite to the blade 2 is connected to the mounting plate 4, and a blade 5 is provided on one side of the blade 2 and the tip 3.

[0054] Preferably, the surface length of the blade 5 is 3 mm, and the handle 1, the blade body 2, the blade tip 3 and the mounting plate 4 are made in one piece, which saves materials and improves the wear resistance and overall strength of the vibration knife (automatic cutting machine knife).

[0055] The advantages of the vibration knife manufacturing process of the present invention are: first, the raw material of the alloy steel material is selected for quenching treatment and surface treatment to remove burrs on the surface of the alloy steel raw material, and then a grinder is used to remove burrs and impurities on the surface of the alloy steel raw material, and the vibration knife (automatic cutting machine cutter) with burrs removed is placed in a grinder for grinding, and the oil and rust on the surface of the alloy steel material are cleaned to ensure the stability of subsequent cladding, and then the blade surface of the alloy steel raw material is evenly clad with powder alloy by laser cladding equipment, so that the clad powder alloy is fully integrated with the alloy steel blade body. In addition, compared with traditional vibration cladding, the laser cladding used uses a high-energy laser beam to micro-melt the surface of the workpiece and completely melt the alloy powder to form a dense coating metallurgically bonded to the substrate. This bonding method has high strength, dense interface structure, fine grains, no holes, cracks or defects. The cladding vibrating knife (automatic cutting knife) is then annealed and polished, so that the blade and the blade body of the finely ground vibrating knife (automatic cutting knife) are fully integrated, ensuring that the blade has sufficient sharpness and wear resistance while taking into account the toughness of the blade body. The finely ground vibrating knife (automatic cutting knife) is then tested for hardness and wear resistance. In addition, the wear resistance and durability of the blade of the vibrating knife (automatic cutting knife) produced by this process are linearly improved, thereby increasing the service life of the vibrating knife (automatic cutting knife).

[0056] Finally, it should be noted that the above description 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 replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vibrating tool cladding process, characterized in that: The following steps are involved: S1. Raw material preparation: Select materials with high hardness and high wear resistance, such as high-speed steel, tool steel, etc. S2, quenching: Use an advanced high-frequency induction heating furnace to uniformly heat the vibrating knife to above the critical temperature, and then immediately immerse it in the quenching medium to ensure rapid cooling from the surface to the core; S3, surface treatment; Remove burrs and oxide layers from the surface of the quenched steel, and then straighten and grind the steel; S4, grinding and cleaning: the rough-ground steel raw material is placed in the grinder for grinding, and the surface oil and rust are cleaned and removed at the same time; S5, Laser Cladding: The powder alloy is evenly clad onto the blade of the vibrating knife through the laser cladding equipment. Before that, a special machine tool and special fixture are used to install the vibrating knife blank on the laser cladding equipment; S6. Surface reprocessing: Use a special cutting machine to cut off the extra raised parts on the surface of the vibration knife after cladding; S7, primary annealing: placing the clad vibrating knife into an annealing furnace for primary annealing; S8, debugging inspection: detect the condition of particles inside the vibrating knife after the initial annealing; S9, Rough grinding surface: Rough grinding of the alloy steel surface of the vibration knife blade and the back of the vibration knife; S10, secondary annealing: performing secondary annealing on the vibrating knife after rough grinding; S11, tool holder trimming: cutting off the vibrating tool holder after secondary annealing by a special cutting machine; S12, drilling installation holes: drilling holes in the tool handle position using a special drilling machine; S13, fine grinding the vibration knife: fine grinding the vibration knife after the knife handle is cut off; S14, quality inspection: The polished vibration knife is subjected to quality inspection, including hardness test and wear resistance test.

2. A vibrating tool laser cladding process according to claim 1, characterized in that: The powder alloy in the laser cladding in S5 is composed of nickel (Ni), chromium (Cr), molybdenum (Mo), silicon (Si), vanadium (V), tungsten (W) and other elements, wherein the other elements include manganese (Mn), phosphorus (P), copper (Cu) and tin (Sn). These elements affect the properties of the powder alloy in different combinations, such as changing the hardness, toughness, wear resistance or machinability.

3. A vibrating tool laser cladding process according to claim 1, characterized in that: A high-power laser cladding machine is used in the laser process in S5, wherein during cladding, the cladding speed and cladding thickness parameters need to be controlled to ensure the uniformity and quality of the cladding layer.

4. A vibrating tool laser cladding process according to claim 1, characterized in that: During the laser process in S5, the tool is mounted on a special fixture, wherein the special fixture is a cube fixture.

5. A vibrating tool cladding process according to claim 1, characterized in that: The S4 grinding and cleaning removes oil, rust impurities and oxide layer on the surface of the vibrating knife raw material to ensure that the surface of the tool is clean so that the cladding material of the powder alloy can be firmly attached to the blade in the subsequent S5 laser cladding process.

6. A vibrating tool laser cladding process according to claim 1, characterized in that: During the S2 quenching process, the quenching medium can be selected from different media according to the process, such as water, brine, oil, and polymer solution.

7. A vibrating tool laser cladding process according to claim 1, characterized in that: During the S12 fine grinding of the vibration knife, the back of the vibration knife, the bevel of the blade tip, the bevel of the blade, the two major surfaces and the powder alloy surface are finely machined and ground, wherein the rotation speed is: 20,000 to 40,000 revolutions per minute.

8. A vibrating tool, according to any one of claims 1-7, characterized in that: One end of the knife handle (1) is connected to a blade body (2) and a blade tip (3); the end of the knife handle (1) opposite to the blade body (2) is connected to a mounting plate (4); and a blade (5) is provided on one side of the blade body (2) and the blade tip (3).

9. A vibrating tool and a vibrating tool laser cladding process according to claim 8, characterized in that: The surface length of the blade (5) is 3 mm, and the handle (1), blade body (2), blade tip (3) and mounting plate (4) are integrally manufactured.

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