Desert beetle-rice leaf bionic grinding wheel, production process and grinding system

Abstract

The application provides a desert beetle-rice leaf bionic grinding wheel, a production process and a grinding system, relates to the field of grinding processing, and aims at the problem that the efficiency of the surface of a base body participating in cooling is low due to the fact that the base body is not adjusted by a grinding element at present, adopts a super-hydrophobic layer on the outer circumferential surface of the grinding wheel base body, the super-hydrophobic layer is a bionic rice leaf surface structure, and hydrophilic abrasive grain clusters of hydrophilic protrusions on the back of a bionic desert beetle are further used on the surface of the grinding wheel. The super-hydrophobic surface with the bionic structure and the hydrophilic abrasive grain clusters with the bionic structure together realize efficient transportation of a cooling medium, improve the efficiency of the surface of the base body participating in cooling, and thus improve the grinding cooling effect of the whole grinding wheel.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of grinding processing, in particular to a desert beetle-rice leaf bionic grinding wheel, a production process and a grinding system. BACKGROUND

[0002] In the field of mechanical processing, grinding processing is widely used and can improve the machining accuracy of parts. Grinding processing is processed by the negative rake angle of abrasive grains, and the heat generated by the removal of unit material is much larger than that of other processing methods. A large amount of heat will cause damage to the workpiece, as cooling liquid is needed for cooling. However, during grinding processing, the high-speed rotation of the grinding wheel will generate air disturbance around the grinding wheel. This air disturbance will hinder the cooling liquid from entering the grinding area to participate in heat exchange, which will result in the cooling effect of the cooling liquid being unable to meet the demand, and will also cause quality defects of the workpiece and accelerate the wear of the grinding wheel. In addition, the traditional grinding wheel will bounce off the cooling liquid that contacts the grinding wheel during high-speed movement, resulting in poor cooling effect and decreased workpiece quality.

[0003] Chinese patent (application number: 201711265610.4) discloses a CVD diamond grinding wheel with surface ordered microstructure and a preparation method thereof. A diamond film is deposited on the outer circumferential surface of the grinding wheel hub, and a large number of and staggered ordered micro-grinding units are processed on the entire outer circumferential surface of the diamond film. The top surface of all the grinding units is waist-shaped. The grinding wheel of the present application can increase the effective grinding edge number of the grinding wheel during grinding, improve the chip formation efficiency and the removal rate of the surface material, and enhance the cutting performance.

[0004] Chinese patent (application number: 201711265544.0) discloses an ordered micro-groove structure multilayer superhard abrasive electroplated grinding wheel and a preparation method thereof. A large number of electroplated superhard abrasive layers containing multiple layers of abrasives are arranged in order on the outer circumferential surface of the grinding wheel hub. There are microgrooves between adjacent abrasive layers, with a width of only a few tens of microns, a depth of a few hundred microns, a length equal to the thickness of the grinding wheel, and a spacing of a few hundred microns. The present application is beneficial to solve the problems of grinding wheel blockage, difficulty of grinding fluid entering the grinding area, easy overlap of adjacent abrasive layers during electroplating of multiple abrasive layers, and poor consistency of abrasive layer structure. It can prevent workpiece burn, improve grinding efficiency and service life of the grinding wheel, and ensure grinding quality.

[0005] Chinese patent (application number: 202111532987.8) discloses a structured grinding wheel based on the combination of bionic ideas, including the bionic morphology and bionic arrangement of abrasive grain clusters. The bionic morphology of abrasive grain clusters is the fish scale structure of grass carp body surface, and the bionic arrangement of abrasive grain clusters is phyllotactic arrangement. The arrangement has excellent uniformity, making the grinding fluid utilization rate higher, the heat dissipation better, and the grinding chip blockage less during grinding processing of the grinding wheel.

[0006] Chinese patent (application number: 202210781585.X) discloses a method for preparing abrasive particles with ordered arrangement tool by mask method, the preparation method comprises: (1) laser cutting mask; (2) mask transfer; (3) electroplating abrasive; (4) taking out the electroplated substrate, flushing away the excess abrasive particles, and tearing off the mask plate; this method is suitable for 50-400μm abrasive particles, and can greatly shorten the process flow and significantly reduce the production cost.

[0007] Chinese patent (application number: 202110299919.5) discloses a super-fine abrasive particle cluster ordered arrangement electroplated grinding wheel and its preparation method, which comprises coating an insulating layer on a mechanical processing substrate, laser blind hole processing on the grinding wheel substrate, ultrasonic cleaning of the processed grinding wheel and electroplating abrasive particles, and then removing the insulating layer. The ordered arrangement abrasive particle cluster with different arrangement modes is prepared. This method is beneficial to increase the chip space, reduce the vibration in the grinding process, and improve the grinding quality.

[0008] Chinese patent (application number: 202210706253.5) discloses a self-transporting bone micro-grinding head of bionic desert beetle and its preparation process, which comprises a hydrophobic substrate or a substrate with a hydrophobic coating layer, the substrate has a hydrophobic surface, and the hydrophobic surface uniformly distributes a plurality of hydrophilic abrasive particles; the micro-grinding head is designed so that the micro-grinding head uses the combination of hydrophilic and hydrophobic to achieve the functions of rapid cooling and the like.

[0009] At present, the improvement of grinding elements improves the cooling effect during grinding, but for bionic structures, they are mostly applied to the outer abrasive particles directly contacting the workpiece, but the position of the substrate is not adjusted specifically, resulting in low efficiency of the substrate surface participating in cooling, and the synergistic cooling efficiency between the substrate and the outer abrasive particles is low. Compared with spherical grinding heads, the structure of the working area of the grinding wheel is not the same as that of the spherical grinding head, and the working environment is more complex. The surface structure will release more heat during grinding, and the current grinding wheel structure form is difficult to meet the cooling demand during grinding. SUMMARY

[0010] The purpose of the present application is to overcome the defects of the prior art, provide a desert beetle-rice leaf bionic grinding wheel, production process and grinding system, an ultrahydrophobic layer is used on the outer circumferential surface of the grinding wheel substrate, the ultrahydrophobic layer is a bionic rice leaf surface structure, and a bionic desert beetle back hydrophilic protrusion hydrophilic abrasive particle cluster is used on the surface of the grinding wheel. The ultrahydrophobic surface of the bionic structure and the hydrophilic abrasive particle cluster of the bionic structure together realize efficient transportation of the cooling medium, improve the efficiency of the cooling medium participating in cooling, effectively reduce the temperature of the grinding area, and meet the cooling demand of grinding processing.

[0011] The first purpose of the present application is to provide a desert beetle-rice leaf bionic grinding wheel, which adopts the following scheme:

[0012] include:

[0013] A substrate having a super hydrophobic layer provided on its outer circumferential surface;

[0014] Hydrophilic abrasive clusters are arranged on the super-hydrophobic layer on the outer circumference of the substrate;

[0015] Among them, the super-hydrophobic layer includes protruding structures arranged on the outer circumference of the substrate, with concave structures formed between the protruding structures, and stepped grooves of different depths imitating the surface of rice leaves are distributed on the surfaces of the protruding structures and the concave structures.

[0016] Furthermore, papillary microstructures are distributed on the surfaces of the convex structures and concave structures.

[0017] Furthermore, the hydrophilic abrasive clusters are arranged in a phylloses pattern on the outer circumferential surface of the substrate.

[0018] Furthermore, the hydrophilic abrasive clusters are arranged in a staggered order on the outer circumferential surface of the substrate.

[0019] Furthermore, the hydrophilic abrasive grain clusters are made of oxidized diamond abrasive grains, and the hydrophilic abrasive grain clusters are electroplated on the outer circumferential surface of the substrate.

[0020] A second object of the present invention is to provide a production process for a desert beetle-rice leaf bionic grinding wheel, comprising:

[0021] The drag-reducing microstructure pattern on the substrate surface is processed and the substrate surface is scanned by diffraction laser. Step grooves similar to the surface of rice leaves are formed on the substrate surface to obtain a super-hydrophobic layer.

[0022] After the processed substrate is cleaned, abrasive grains are electroplated on the super-hydrophobic layer on the outer circumference of the substrate in the form of abrasive grain clusters, forming hydrophilic abrasive grain clusters arranged in sequence on the outer circumference of the substrate.

[0023] Furthermore, before electroplating the abrasive grains, the abrasive grains are subjected to a hydrophilic treatment, and the abrasive grains are diamond abrasive grains.

[0024] Furthermore, a mask with sequentially arranged holes is used, the mask is pasted on the substrate, and the abrasive is fixed in the grinding holes with a binder. The abrasive in each hole forms a hydrophilic abrasive cluster. After the abrasive is initially fixed by electroplating, the mask is removed and finally electroplating is performed to thicken the abrasive.

[0025] Furthermore, the holes on the mask are arranged in phylloidal order or staggered order, so as to form hydrophilic abrasive grain clusters arranged in phylloidal order or hydrophilic abrasive grain clusters arranged in staggered order.

[0026] A third object of the present invention is to provide a grinding system utilizing a desert beetle-rice leaf bionic grinding wheel, comprising:

[0027] An atomizing nozzle is connected to the cooling liquid supply assembly;

[0028] A main shaft, the base body of the desert beetle-rice leaf bionic grinding wheel is installed at the output end of the main shaft;

[0029] A clamp is installed towards the main shaft for clamping the workpiece to be processed.

[0030] Compared with the prior art, the present application has the advantages and positive effects that:

[0031] (1) In view of the problem that the surface of the base body participates in the cooling with low efficiency due to the fact that the grinding element does not adjust the base body, a super-hydrophobic layer is adopted on the outer circumferential surface of the grinding wheel base body, the super-hydrophobic layer is a bionic rice leaf surface structure, and then a hydrophilic abrasive grain cluster of the hydrophilic protrusion on the back of the bionic desert beetle is used on the surface of the grinding wheel. The super-hydrophobic surface with bionic structure and the hydrophilic abrasive grain cluster with bionic structure together realize efficient transportation of the cooling medium, improve the efficiency of the base body surface participating in the cooling, and thus improve the grinding cooling effect of the entire grinding wheel.

[0032] (2) The super-hydrophobic surface of the bionic rice leaf is formed on the outer circumferential surface of the grinding wheel base body, so that the surface thereof increases the movement path of the grinding fluid, which is beneficial to the movement of the grinding fluid along the surface of the base body. After the abrasive grains are fixed on the outer circumferential surface of the base body, the grinding fluid can flow from the super-hydrophobic surface of the base body to the abrasive grain cluster area, accelerate the condensation of the grinding fluid on the hydrophilic abrasive grain cluster, and improve the efficiency of the cooling liquid participating in the cooling.

[0033] (3) The grinding wheel base body with a super-hydrophobic layer and the hydrophilic abrasive grain cluster are combined. During work, the grinding fluid preferentially contacts the abrasive grains and preferentially condenses at the abrasive grains. The abrasive grain cluster is limited to contact the workpiece, so that the grinding fluid in the abrasive grain cluster area directly participates in the cooling, thereby reducing the grinding processing temperature. At the same time, the grinding fluid contacting the super-hydrophobic layer of the outer circumferential surface of the base body flows to the hydrophilic abrasive grain area through the bionic rice leaf texture, thereby improving the efficiency of the grinding fluid participating in the cooling and further reducing the grinding processing temperature.

[0034] (4) The abrasive grains and the abrasive grain cluster are fixed in the form on the outer circumferential surface of the base body, and the abrasive grain cluster is arranged in phyllotaxis, which is beneficial to the discharge of grinding chips. The ordered arrangement of the abrasive grain cluster can improve the surface quality of the processed workpiece.

[0035] (5) The bionic grinding wheel is combined with the atomizing nozzle. Through the atomizing nozzle, the efficiency of the grinding fluid itself participating in the cooling is improved. At the same time, the hydrophilic and hydrophobic effects of the hydrophilic abrasive grain cluster of the bionic desert beetle back and the super-hydrophobic layer of the base body surface of the bionic rice leaf surface are utilized to improve the efficiency of the grinding fluid participating in the cooling. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application, and are incorporated herein by reference. The embodiments of the present application, together with its

[0037] Figure 1 A schematic diagram of the grinding system in Example 3 of the present application.

[0038] Figure 2 A flow chart of the preparation of the biomimetic grinding wheel in Examples 1-3 of the present application.

[0039] Figure 3 A schematic diagram of the biomimetic grinding wheel in Examples 1-3 of the present application.

[0040] Figure 4 A schematic diagram of the substrate surface after ultrafast laser processing in Examples 1-3 of the present application.

[0041] Figure 5 A schematic diagram of the substrate surface biomimetic rice leaf microstructure in Examples 1-3 of the present application.

[0042] Figure 6 A schematic diagram of the grinding wheel surface biomimetic papillary microstructure in Examples 1-3 of the present application.

[0043] Figure 7 A schematic diagram of the abrasive grain cluster phyllotactic arrangement on the outer circumferential surface of the substrate in Examples 1-3 of the present application.

[0044] Figure 8 A schematic diagram of another biomimetic grinding wheel in Examples 1-3 of the present application.

[0045] Figure 9 A schematic diagram of the substrate surface after laser processing in Examples 1-3 of the present application.

[0046] Figure 10 A schematic diagram of the abrasive grain cluster disordered arrangement on the outer circumferential surface of the substrate in Examples 1-3 of the present application.

[0047] Figure 11 A flow chart of the preparation of the biomimetic grinding wheel in Examples 1-3 of the present application.

[0048] Figure 12 A schematic diagram of the grinding system in Example 3 of the present application.

[0049] Figure 13 A schematic diagram of the liquid and gas circuits of the grinding system in Example 3 of the present application.

[0050] Figure 14 A circuit block diagram in Example 3 of the present application.

[0051] Figure 15Structure diagram of the atomizing nozzle in embodiment 3 of the present application.

[0052] Figure 16 Structure diagram of the atomizing nozzle in embodiment 3 of the present application.

[0053] In the figure, 1 is a workbench, 2 is a dynamometer, 3 is a dynamometer fixing screw, 4 is an information output interface, 5 is a clamp, 6 is a workpiece, 7 is a tangential positioning screw, 8 is a grinding wheel cover, 9 is a bionic grinding wheel, 10 is an atomizing nozzle, 11 is a magnetic chuck, 12 is a micro-lubrication delivery pipeline, 13 is a compressed air delivery pipeline, 14 is a workpiece positioning stopper, 15 is a radial positioning screw, 16 is a clamp fixing screw, 17 is a high-voltage wire, 18 is a power supply, 19 is a power-on device, 20 is a fixing screw hole, 21 is an electromagnet wire channel, 22 is an L-shaped needle electrode, 23 is an electrode groove, 24 is a liquid-gas outlet, 25 is a lower nozzle, 26 is an internal acceleration section, 27 is a liquid-gas mixing section, 28 is an insulating sleeve, 29 is a throttling hole, 30 is a liquid injection cavity, 31 is a gas channel, 32 is a gas channel interface, 33 is a liquid injection channel, 34 is a liquid injection channel interface, 35 is a high-voltage wire channel, 36 is an upper nozzle, 37 is an electrode plate, 38 is a sealing washer, 39 is a gas outlet, 40 is a high-voltage electrode wire passage, 41 is an annular electrode disc, 42 is a nozzle magnetic box, 43 is an electromagnet, 44 is a positioning chuck, 45 is an air compressor, 46 is a nanofluid storage tank, 47 is a gas storage tank, 48 is a liquid pump, 49 is a filter, 50 is a pressure gauge, 51 is a throttling valve I, 52 is a turbine flowmeter I, 53 is a turbine flowmeter II, 54 is a throttling valve II, 55 is a pressure regulating valve I, 56 is a pressure regulating valve II, 57 is an overflow valve, and 58 is a nanofluid recovery tank. DETAILED DESCRIPTION

[0054] Embodiment 1

[0055] In a typical embodiment of the present application, as shown in Figures 2-11 a desert beetle-rice leaf bionic grinding wheel is given.

[0056] The ordered arrangement of abrasive grains on the outer surface of the grinding wheel can facilitate the entry of grinding fluid into the grinding area and slow down the thermal damage of the workpiece during grinding, but the cooling effect is still difficult to meet the demand due to the limited delivery performance of the grinding wheel matrix and abrasive to the cutting fluid. The current improvement is mostly directed to the abrasive grains on the surface of the matrix, but the grinding cooling performance is limited.

[0057] Based on this, the present embodiment provides a desert beetle-rice leaf bionic grinding wheel, which combines animal bionics and plant bionics. The outer circumferential surface of the grinding wheel matrix adopts a hydrophobic surface of a bionic rice leaf, and the abrasive grains fixed outside the grinding wheel matrix adopt hydrophilic abrasive grains of the hydrophilic protrusions on the back of a bionic desert beetle. The self-transport of the cooling medium on the grinding wheel is realized, the efficiency of the cooling medium participating in cooling is improved, and the grinding cooling performance is improved.

[0058] The desert beetle-rice leaf bionic grinding wheel will be described in detail below with reference to the accompanying drawings.

[0059] Referring to Figure 3 , the desert beetle-rice leaf bionic grinding wheel comprises a base body and abrasive grains fixed on the outer circumferential surface of the base body. The abrasive grains are fixed on the base body in the form of abrasive grain clusters, and the abrasive grains are hydrophilic abrasive grains, thereby forming hydrophilic abrasive grain clusters on the outer circumferential surface of the base body, which are similar to the hydrophilic protrusions on the back of a bionic desert beetle. The outer circumferential surface of the base body is provided with a super-hydrophobic layer formed by a bionic rice leaf surface, and the base body and the abrasive grains jointly improve the cooling efficiency.

[0060] By designing the base body and the outer surface abrasive grains of the grinding wheel, and by using a combination of a hydrophobic surface and hydrophilic abrasive grains on the working surface, the rapid cooling effect is achieved. The base body surface of the grinding wheel is designed to have a structure similar to a bionic rice leaf surface, and hydrophilic abrasive grains similar to the hydrophilic protrusions on the back of a bionic desert beetle are used on the surface of the grinding wheel. The abrasive grains are uniformly arranged on the outer circumferential surface of the grinding wheel. By combining the super-hydrophobic surface of the bionic rice leaf and the hydrophilic protrusions on the back of the bionic desert beetle, the cooling medium is self-transported. The cooling medium is transported to the hydrophilic abrasive grain area through the hydrophobic surface and rapidly nucleates and drops, thereby improving the cooling efficiency of the cooling medium, effectively reducing the temperature of the grinding area, reducing the thermal damage to the workpiece, and improving the stability of the machined surface.

[0061] The super-hydrophobic layer comprises protrusions arranged on the outer circumferential surface of the base body, and the protrusions form recesses therebetween. The surfaces of the protrusions and the recesses are provided with stepped grooves similar to the surface of a bionic rice leaf and having different depths.

[0062] First, the outer circumferential surface of the base body is processed to obtain a base body surface drag-reducing microstructure, as shown in Figure 4 , and then a multi-layer groove is obtained by diffraction laser scanning. Different depth stepped grooves similar to the surface of a bionic rice leaf are formed in the area irradiated by the femtosecond laser, as shown in Figure 5 , thereby forming a multi-layer groove and a small papillary microstructure on the outer circumferential surface of the base body.

[0063] It can be understood that the multi-layer stepped groove and the papillary microstructure are formed at one time by diffraction laser scanning, and then a large-area periodic layered structure is obtained by raster scanning. The papillary microstructure on the outer circumferential surface of the base body is shown in Figure 6 .

[0064] The specific process for obtaining the bionic grinding wheel 9 is shown in Figure 3 . In this embodiment, it will not be described in detail, and the required base body super-hydrophobic layer of the bionic rice leaf and the hydrophilic abrasive grain cluster can be obtained.

[0065] Optionally, abrasive grains are distributed on the outer circumferential surface of the substrate in the form of abrasive grain clusters, and the abrasive grain clusters are uniformly distributed on the substrate in a phyllotactic arrangement, as shown in Figure 7 .

[0066] In other optional embodiments, abrasive grains are distributed on the outer circumferential surface of the substrate in the form of abrasive grain clusters, and in addition, the abrasive grain clusters are uniformly distributed on the substrate in a disordered arrangement, as shown in Figure 10 . The structure of the corresponding biomimetic grinding wheel 9 is shown in Figure 8 , and the structure of the super-hydrophobic layer obtained after laser processing of the substrate of the biomimetic grinding wheel 9 is shown in Figure 9 .

[0067] In this embodiment, the hydrophilic abrasive grain clusters use diamond abrasive grains treated by oxidation, and the hydrophilic abrasive grain clusters are electroplated on the outer circumferential surface of the substrate.

[0068] The abrasive grains use diamond abrasive grains, which have strong lipophilic and hydrophobic properties. By treating the diamond abrasive grains by oxidation, the diamond abrasive grains can be made to have hydrophilic properties, thereby meeting the requirements of the hydrophilic abrasive grain clusters. In addition, diamond is one of the hardest substances in nature, and its ultra-high hardness and high thermal conductivity are very suitable for grinding.

[0069] Embodiment 2

[0070] In another typical embodiment of the present application, a production process for a desert beetle-rice leaf biomimetic grinding wheel is given, as shown in Figures 2-11 .

[0071] The production process for the desert beetle-rice leaf biomimetic grinding wheel includes:

[0072] The surface of the substrate is processed to form a drag-reducing microstructure pattern, and the surface of the substrate is scanned by a diffractive laser, so that a stepped groove similar to the surface of a rice leaf is formed on the surface of the substrate, thereby obtaining a super-hydrophobic layer;

[0073] After the processed substrate is cleaned, abrasive grains are electroplated on the outer circumferential surface of the substrate in the form of abrasive grain clusters, thereby forming hydrophilic abrasive grain clusters arranged in order on the outer circumferential surface of the substrate; and a desert beetle-rice leaf biomimetic grinding wheel is obtained.

[0074] The desert beetle-rice leaf biomimetic grinding wheel includes a substrate and hydrophilic abrasive grain clusters. The outer circumferential surface of the substrate adopts a super-hydrophobic surface of a biomimetic rice leaf, and the hydrophilic abrasive grain clusters imitate the hydrophilic protrusions on the back of a desert beetle. The surface of the substrate is first processed by laser to form a pre-set drag-reducing pattern, and then a super-hydrophobic surface similar to the surface of a rice leaf is processed on the substrate of the grinding wheel by a femtosecond laser system based on the principle of optical diffraction, thereby obtaining a super-hydrophobic layer. The abrasive grains imitate the hydrophilic protrusions on the back of a desert beetle, and the abrasive grains are uniformly distributed on the substrate in the form of abrasive grain clusters arranged in a set arrangement.

[0075] The abrasive grains used are diamond abrasive grains. Diamond has strong oleophilic and hydrophobic properties. Diamond can be made hydrophilic by oxidation. At the same time, diamond is one of the hardest substances in nature. Its ultra-high hardness and high thermal conductivity are very suitable for grinding.

[0076] Specifically, such as Figure 2 As shown in FIG, the preparation process of the desert beetle-rice leaf bionic grinding wheel is as follows:

[0077] Step 1: Hydrophilize the diamond abrasive. Select diamond abrasives of similar size and structure and then hydrophilize them by soaking them in a chromic acid solution. This soaking in chromic acid will roughen the surface of the diamond abrasive, making it hydrophilic. This hydrophilization improves the bond with the substrate and enhances grinding performance.

[0078] Step 2: Processing the outer circumference of the substrate to create a pre-set drag-reducing microstructure pattern. The pattern is input into a computer control system and processed using ultrafast lasers.

[0079] Step 3: Super hydrophobic treatment of the grinding wheel substrate surface.

[0080] In the traditional method, a hydrophobic coating is often set on the outer circumferential surface of the substrate. The hydrophobic coating is made hydrophobic by chemical modification. The substrate with the nickel coating is immersed in a myristic acid solution to reduce the surface energy while trapping air, thereby preparing a hydrophobic coating with good wear resistance and corrosion resistance.

[0081] In this embodiment, laser is used to process the outer circumferential surface of the substrate. By adjusting different parameters of the laser and utilizing the optical diffraction principle to scan the substrate, a bionic super-hydrophobic surface similar to a rice leaf is processed. The hydrophobic structure of the bionic rice leaf surface is utilized to process a super-hydrophobic layer on the outer circumferential surface of the substrate, thereby achieving good hydrophobicity on the outer circumferential surface of the substrate.

[0082] Step 4: Pre-treat the grinding wheel after the outer surface is super-hydrophobicized, and pre-treat the grinding wheel with hydrophobic coating before pre-plating.

[0083] Step 5: Combine the hydrophilic abrasive clusters with the super-hydrophobic layer on the substrate surface. This embodiment uses the electroplating method, which can make the abrasive particles evenly distributed and effectively prevent the formation of nickel nodules. The hydrophilic abrasive particles are electroplated on the grinding wheel in the form of abrasive clusters. The complete flow chart is as follows: Figure 2 shown.

[0084] The diamond abrasive grains were hydrophilized by placing the diamond powder in a 10% chromic acid solution and stirring and soaking it for 11 hours. The treated diamonds exhibited hydrophilic properties and had less loss during the plating process, resulting in more complete plating.

[0085] The base body is made of aluminum alloy material, which can meet the requirement of grinding strength and has light weight.

[0086] The processing of the preset drag-reducing microstructure pattern on the outer circumferential surface of the base body comprises:

[0087] Before the surface drag-reducing microstructure processing, the base body is ultrasonically cleaned in ethanol for 15 minutes, and then dried with nitrogen. Then, the processing pattern of the outer circumferential surface of the base body is input into a laser processing system by using a computer. The outer circumferential surface of the base body is processed by microstructure through ultrafast laser.

[0088] When the drag-reducing microstructure pattern is processed, the laser processing parameters are as follows: laser wavelength 780 nm, frequency 1 kHz, pulse width 240 fs, focal length 50 mm, power 1 W, defocusing amount 0 mm, scanning speed 200 mm / min, and the spacing of the outer circumferential surface of the base body is d=0.25 mm, f=0.625 mm, and e=0.75 mm. Figure 4

[0089] The processing of the outer circumferential surface of the base body with a biomimetic super-hydrophobic layer comprises:

[0090] Before processing, the base body is also ultrasonically cleaned in ethanol for 15 minutes, and then dried with nitrogen.

[0091] A biomimetic rice leaf surface structure is generated on the surface of the aluminum alloy by using a magnified titanium sapphire femtosecond laser system (Spectra-Physics).

[0092] The central wavelength of the laser pulse is 800 nm. The size of the entrance spot is controlled by using a tunable aperture. The intensity of the laser incident on the surface of the base body is adjusted by using a G-L-T polarizer. The laser beam is focused on the surface of the base body by a convex lens with a focal length of 25.4 mm. The profile of the focused laser beam is approximately Gaussian distribution, and the diameter at the focal plane is about 30 μm.

[0093] As shown in Figure 4 , during operation, the energy density of the laser at the focal point is set to F=2.8 J / cm 2 , and the diameter of the incident spot is set to 12 mm. The laser performs raster scanning with a scanning pitch n=70-85 μm, a surface protruding structure c=0.5 mm, a=1 mm, h=7-13 μm, and a scanning speed of 1 mm / s. After the laser surface modification, the sample is ultrasonically cleaned with ethanol for 15 min, and dried with nitrogen flow.

[0094] Then, the sample is placed in a vacuum bag to prevent its surface from being contaminated. A multi-layer groove is obtained by using a diffraction laser scanning method.

[0095] ​According to the principle of light diffraction, when the laser spot before entering the lens is approximately equal to the lens aperture, diffraction occurs behind the lens. Due to the intensity of the diffraction laser, when the laser moves at a certain speed, different depth step grooves similar to rice leaf surface will be formed in the area irradiated by femtosecond laser Figure 5 . That is, the multi-level grooves and tiny papillary microstructures on the surface of the grinding wheel substrate can be formed at one time, and then a large area of periodic layered structure can be obtained by grating scanning. The papillary microstructure on the surface of the grinding wheel substrate is shown in Figure 6 .

[0096] Alternatively, as shown in Figure 11 , a super-hydrophobic layer can also be formed by processing a super-hydrophobic coating on the grinding wheel substrate.

[0097] Before electroplating abrasive grains on the substrate after processing the super-hydrophobic layer, the substrate after super-hydrophobic processing is cleaned, and the cleaning process includes:

[0098] (1) Organic solvent cleaning

[0099] Put the aluminum alloy substrate into the metal cleaning agent solution to remove oil until it is completely removed.

[0100] (2) Cleaning

[0101] (3) Alkaline solution chemical degreasing

[0102] Wax removal water or wax removal liquid produced by professional enterprises can be selected. Here are two solutions:

[0103] Sodium hydroxide (NaOH) 3g / L, sodium carbonate (Na2CO3) 30g / L, sodium dihydrogen phosphate (Na2HPO4) 30g / L, temperature control at 90-95℃, soaking for 60s.

[0104] Sodium hydroxide (NaOH) 30g / L; sodium carbonate (Na2CO3) 50g / L; sodium phosphate (Na3PO4) 70g / L; OP emulsifier 3-5g / L; temperature 60-70℃; time 20-30min.

[0105] (4) Cleaning

[0106] (5) Heavy metal immersion

[0107] Ferric chloride (FeCl3) 20g / L, hydrogen chloride (HCl) 25ml / L, temperature control at 85-95℃, soaking for 15s.

[0108] (6) Cleaning

[0109] (7) Pickling

[0110] Nitric acid (HNO3), hydrofluoric acid (HF) = 3:1, time 1-2 min.

[0111] (8) Zinc dipping

[0112] Zinc sulfate heptahydrate (ZnSO4·7H2O) 300 g / L, sodium hydroxide (NaOH) 300 g / L, temperature control at 15-30℃, soaking for 60-90 s.

[0113] (9) Secondary acid pickling

[0114] The first zinc dipping is removed with 50% nitric acid.

[0115] (10) Cleaning

[0116] (11) Secondary zinc dipping

[0117] The secondary zinc dipping solution is the same as the first zinc dipping solution, and the soaking time is 30-50 s, with temperature control at 15-30℃.

[0118] (12) Cleaning

[0119] Preparation for electroplating.

[0120] The hydrophilic abrasive particles are combined with the substrate with a super-hydrophobic layer through electroplating, and the hydrophilic abrasive particle clusters can be arranged in a phyllotactic arrangement on the super-hydrophobic layer of the substrate, comprising:

[0121] The mask method is used to achieve the ordered arrangement of the abrasive particles, which can improve the grinding performance of the tool. The mask with ordered arranged array holes is processed by laser, the mask is pasted on the substrate, the abrasive particle clusters are fixed in the holes with a binder, the abrasive particles in each hole form an abrasive particle cluster, and then the abrasive particles are preliminarily fixed by electroplating. The mask is removed, and electroplating is performed again. The electroplating bath composition: nickel sulfamate Ni(NH2SO3)·4H2O 370 g / L; sodium chloride NaCl 15 g / L; boric acid H3BO3 350 g / L; sodium dodecyl sulfate C 12 H 25-OSO3Na 0.1 g / L; primary brightener 0.7 g / L; secondary brightener 0.9 g / L; hydrophilic diamond particles, abrasive grain size range 44-150 μm. The plating procedure is as follows: the plating solution aged for 24 hours is ultrasonically treated for 10 min. Then it is mechanically stirred for 30 min, and then poured into a clean plating bath, and the plating process is continuously stirred, the plating solution is adjusted to pH 4.0 with 5% dilute sulfuric acid, the anode nickel is ultrasonically cleaned, and then connected to the positive pole of the power supply and placed in the plating solution, the laser-processed grinding wheel substrate is ultrasonically cleaned for 5 min, and then connected to the cathode and placed in the plating solution, the current density is 1.8 A / dm2, the stirring speed is 250 rpm / min, the plating solution temperature is 15°C, and the plating time is 10 min. The prepared grinding wheel is shown in Fig. 3.

[0122] The distribution parameters of abrasive grain clusters arranged in phyllotaxis on the outer circumferential surface of the substrate are as follows:

[0123]

[0124] In the formula:

[0125] R and H - coordinates of abrasive grain clusters on the cylindrical surface;

[0126] α, phyllotaxis divergence angle, i.e. the helix angle of two adjacent phyllotaxis points;

[0127] h, phyllotaxis coefficient;

[0128] n, the nth abrasive grain from the end surface of the substrate.

[0129] The arrangement of abrasive grains on the cylindrical surface is not continuous, but is discretely distributed on the outer circumferential surface of the substrate in a certain regularity. For the convenience of abrasive grain arrangement and calculation, the outer circumferential surface of the substrate is unfolded as shown in Fig. 3. When the diameter of the outer circumferential surface of the substrate is D and the height is H, the outer circumferential surface of the substrate is unfolded, and a coordinate system is established with the center of the diamond abrasive grain at the bottom end of the outer circumferential surface of the substrate as the origin. The position expression formula of the abrasive grain is: Figure 7

[0130]

[0131] In the formula:

[0132] X i - the horizontal coordinate of the ith abrasive grain cluster;

[0133] y i - the vertical coordinate of the ith abrasive grain cluster;

[0134] The number N of abrasive grain clusters on the cylindrical surface is:

[0135]

[0136] ​The density N1 of the abrasive grain cluster on the cylindrical surface is:

[0137]

[0138] The embodiment is to design a drag reduction pattern on the grinding wheel base, and then to process a microstructure similar to the surface of rice leaves by femtosecond laser to make the base have a hydrophobic ability similar to the surface of rice leaves. Hydrophilic abrasive grains are fixed on the surface of the base in the form of abrasive grain clusters by adopting phyllotaxis arrangement method through electroplating.

[0139] Through the hydrophilic condensation of the hydrophilic abrasive grain cluster and the self-transportation and condensation of the hydrophobic surface formed medium, the efficiency of the cooling medium participating in grinding is improved, the grinding processing temperature is reduced, and the surface quality of the processed workpiece is more stable.

[0140] In other optional embodiments, abrasive grains are distributed on the outer circumferential surface of the base in the form of abrasive grain clusters, and in addition, the abrasive grain clusters are uniformly distributed on the base in a disordered arrangement manner, as shown in Figure 10 The structure of the corresponding biomimetic grinding wheel 9 is shown in Figure 8 After laser processing of the base of the biomimetic grinding wheel 9, the structure of the super-hydrophobic layer is shown in Figure 9

[0141] Embodiment 3

[0142] In another embodiment of the present application, as shown in Figures 1-16 A grinding system using a desert beetle-rice leaf biomimetic grinding wheel is provided.

[0143] As shown in Figures 1-11 The grinding system uses the desert beetle-rice leaf biomimetic grinding wheel as in embodiment 1, and the desert beetle-rice leaf biomimetic grinding wheel can be processed by the production process as in embodiment 2.

[0144] As shown in Figure 12 The clamp 5 is installed on the dynamometer 2 through the clamp 5 fixing screw, the clamp 5 is provided with a positioning groove, the positioning groove is connected with a tangential positioning piece and a radial positioning piece, the tangential positioning piece and the radial positioning piece combine two adjacent side walls of the positioning groove to form a clamping part for accommodating the workpiece 6, the positioning groove is connected to the workbench 1 through the dynamometer 2, the dynamometer 2 is installed on the workbench 1 through the dynamometer fixing screw 3, the relative position of the dynamometer 2 and the workbench 1 can be adjusted after loosening the dynamometer fixing screw 3, and the relative position of the dynamometer 2 and the workbench 1 can be locked after tightening the dynamometer fixing screw 3 after adjusting the position of the dynamometer 2.

[0145] The dynamometer 2 is provided with an information output interface 4, which can be connected to an external data acquisition device through a data line.

[0146] ​The tangential positioning member adopts a tangential positioning screw 7, and the radial positioning member adopts a radial positioning screw 15 in combination with a workpiece positioning block 14. The tangential positioning member can adjust the size of the clamping portion along the axis direction of the tangential positioning screw 7, and the radial positioning member can adjust the size along the axis direction of the radial positioning screw 15, so as to adapt to workpieces 6 of different sizes.

[0147] The bionic grinding wheel 9 is connected to the main shaft, and the bionic grinding wheel 9 is externally provided with a grinding wheel cover 8. The outer side of the grinding wheel cover 8 is provided with a magnetic chuck 11. A compressed air conveying pipeline 13 and a micro-lubrication conveying pipeline 12 are respectively fixed on the magnetic chuck 11. The compressed air pipeline 13 and the micro-lubrication conveying pipeline 12 are respectively connected to an atomizing nozzle 10. Compressed air and lubricating liquid are respectively input into the atomizing nozzle 10 and output to the grinding position of the bionic grinding wheel 9 through the atomizing nozzle 10.

[0148] The atomizing nozzle 10 comprises a lower nozzle 25 and an upper nozzle 36 in opposite connection. The upper nozzle 36 is internally provided with a gas passage 31 in the radial direction. The gas passage 31 is circumferentially provided with a liquid injection cavity 30 located in the interior of the upper nozzle 36. The interior of the end of the upper nozzle 36 facing the lower nozzle 25 is provided with an annular groove. The liquid injection cavity 30 is connected to the annular groove through a throttling hole 29. The annular groove is provided with an electrode plate 37 arranged around the gas passage 31. The electrode plate 37 is connected with a high-voltage wire 17. The gas passage 31 penetrates through the annular groove and protrudes to the outer end face of the upper nozzle 36, forming a gas outlet 39.

[0149] The end of the gas passage 31 away from the outlet in the axial direction is a gas inlet. The position of the gas inlet forms a gas passage interface 31. The liquid injection cavity 30 is connected with a liquid injection passage 33. The end of the liquid injection passage 33 away from the liquid injection cavity 30 leads out to the outer side of the outer circumferential surface of the upper nozzle 36 and forms a liquid injection passage interface 34.

[0150] As shown in Figure 15 and Figure 16 , the annular electrode plate 37 and the circumferential inner wall of the annular groove are provided with an insulating sleeve 28. At the same time, the end face of the electrode plate 37 and the end face of the throttling hole 29 connected to the annular groove are also separated by the insulating sleeve 28, so that the electrode plate 37 and the upper nozzle 36 are electrically isolated.

[0151] The annular groove, the gas passage 31, the electrode plate 37 and the insulating sleeve 28 are coaxially arranged. A high-voltage wire passage 35 is provided on the upper nozzle 36 for the high-voltage wire 17 to pass through.

[0152] As shown in Figure 15As shown, a first stepped hole is provided at one end of the lower nozzle 25 facing the upper nozzle 36, and the large diameter section of the first stepped hole is connected to the upper nozzle 36. One end of the upper nozzle 36 extends into the large diameter section of the first stepped hole and abuts against the annular step surface of the first stepped hole through a sealing gasket 38; the small diameter section of the first stepped hole includes a liquid-gas mixing section 27 and an internal acceleration section 26 which are connected in sequence, the liquid-gas mixing section 27 is connected to the end opening of the annular groove, and the gas outlet 39 extends into the liquid-gas mixing section 27; the internal acceleration section 26 is a tapered section, and the end away from the liquid-gas mixing section 27 is the liquid-gas outlet 24.

[0153] A second stepped hole is formed at one end of the lower nozzle 25 away from the upper nozzle 36 . The second stepped hole includes a first section with a relatively large diameter and a second section with a relatively small diameter. The second section is connected to the liquid-gas outlet 24 .

[0154] An annular electrode disk 41 is provided in the second segment, with its inner ring forming an electrode groove 23. An L-shaped needle-shaped electrode 22 is provided at the end of the annular electrode disk 41 facing the first segment. A magnet is provided in the first segment, with its inner ring forming a nozzle magnetic box 42. The magnet can be an electromagnet 43, and an electromagnet wire channel 21 is provided on the side wall of the lower nozzle 25 corresponding to the first segment.

[0155] An annular positioning chuck is provided on the end surface of the lower nozzle 25 away from the upper nozzle 36 , and the positioning chuck fixes the electromagnet 43 in the second stepped hole. The positioning chuck 44 is installed on the lower nozzle 25 through the fixing threaded hole 20 and the threaded fastener.

[0156] The upper nozzle 36 and the lower nozzle 25 are connected by threaded connection, and the liquid-gas mixture outputted by the liquid-gas nozzle passes through the second stepped hole and is outputted to the outside of the atomizing nozzle 10 .

[0157] like Figure 13 As shown, the gas channel interface 31 on the upper nozzle 36 is connected to the turbine flowmeter I 52, the throttle valve I 51, the pressure regulating valve I, the air storage tank 47, the filter 49 and the air compressor 45 in sequence through a pipeline, wherein the air storage tank 47 is connected to a pressure gauge 50; the liquid injection channel interface 34 on the upper nozzle 36 is connected to the turbine flowmeter II 53, the throttle valve II 54, the pressure regulating valve II 56, the liquid pump 48 and the nanofluid storage tank 46 in sequence through a pipeline, and the pipeline between the throttle valve II 54 and the pressure regulating valve II 56 is also connected to the overflow valve 57, and the overflow channel of the overflow valve 57 is connected to the nanofluid recovery tank 58.

[0158] The electrode plate 37 is installed in the annular groove of the upper nozzle 36, the L-shaped needle electrode 22 and the electromagnet 43 are arranged in the lower nozzle 25, and the charging amount of the nanofluid droplet is increased, the upper nozzle 36 includes a liquid injection cavity 30, the nanofluid is output to the liquid injection cavity 30 through a liquid injection channel 33, the compressed air and the nanofluid are mixed in a liquid-gas mixing section 27 to form a bubble flow, the bubble flow enters an acceleration section, the pressure and flow rate of the bubble flow are increased, the bubble diameter is reduced, the bubble flow is squeezed and unstable, and the bubble flow is broken into smaller bubbles and droplets, the electrostatic atomization effect is improved, and the jet flow speed is increased when the liquid-gas outlet 24 is sprayed.

[0159] Due to the sudden drop in pressure to atmospheric pressure, the bubble will expand rapidly and burst to form the power of liquid droplet atomization, at the same time, the surrounding bubbles will be shocked and exploded and collide with each other to make the atomized particles extremely small, forming a good atomization effect output to the atomization nozzle 10.

[0160] The current is transmitted to the atomization nozzle 10 through the high-voltage wire 17, the high-voltage wire 17 is sequentially connected to the power supply 18 and the power-on device 19, and the structure and distribution of the power supply 18 and the power-on device 19 are as shown in Figure 14 .

[0161] The overall working process is that the workpiece 6 is placed on the fixture 5 and fixed, the liquid pump 48, the gas tank 47 and the power head are turned on, the control parameters are adjusted, the grinding wheel adopts the bionic grinding wheel 9 of the embodiment, the atomization nozzle 10 is turned on, and the work is started when the atomization effect is best.

[0162] In the embodiment, the bionic grinding wheel 9 and the atomization nozzle 10 are combined, the nanofluid is energized by the atomization nozzle 10, the cooling efficiency of the grinding fluid is improved, the self-transportation effect of the bionic grinding wheel 9 is used to further improve the cooling effect of the grinding fluid, and the machining quality of the workpiece 6 is further improved.

[0163] In the embodiment, the basic wetting principle is:

[0164] Young wetting equation:

[0165]

[0166] Where: θ Y represents the intrinsic contact angle of the material surface, γ SV , γ SL and γ LV are the solid-gas, solid-liquid and liquid-gas surface tensions respectively. When the liquid is unchanged (γ LV is unchanged), the intrinsic contact angle θY increases with the decrease of (γ SV -γ SL ), so the solid surface energy can be reduced and the contact angle can be increased.

[0167] Wenzel wetting model:

[0168] Young equation is to represent the smooth solid surface wetting, which is a kind of ideal state of solid surface, in real life almost does not exist, the real solid surface is rough, there are many microstructure on the surface, Wenzel found that the surface microstructure has important influence on wetting, so in the Young equation introduced roughness factor to obtain the real wetting state, Wenzel's model is the droplet completely into the solid surface microstructure, solid-liquid contact area increases, the equation is as follows:

[0169]

[0170] Where: roughness factor r represents the actual contact area and the ratio of the projected area, θ W Wenzel state of the actual contact angle. Wenzel wetting equation in the actual solid-liquid contact area is always greater than the projected area, so r is always greater than 1, so for θ Y <90° hydrophilic surface, θ W With the increase of r decreases; for θ Y >90° hydrophobic surface, θ W With the increase of r increases.

[0171] Cassie-Baxter wetting model

[0172] Wenzel equation droplet completely immersed in the microstructure, so there is a great adhesion between the droplet and the solid surface. Real wetting surface has many cases with very small adhesion can not be explained by Wenzel model, for example, lotus leaf surface. Cassie and Baxter observed that the droplet can not completely wet the surface with extremely rough microstructure, microstructure and air in the microstructure together support the droplet, thus showing a larger contact angle and lower adhesion phenomenon. After this model is named Cassie-Baxter wetting model, the equation is as follows:

[0173] cosθ C = f LS cosθ LS + f LV cosθ LV

[0174] Where: f LS and f LV respectively represent the area fraction of liquid-solid contact interface and liquid-gas contact interface, and f LS + f LV = 1. θ LS and θ LVLiquid-solid and liquid-air intrinsic contact angle, respectively. Since the liquid-air intrinsic contact angle is 180°, the Cassie-Baxter equation can be rewritten as:

[0175] cosθ C = f LS (cosθ LS +1)-1

[0176] From this formula, it can be seen that the liquid droplet contact angle is related to f, and the liquid droplet contact angle can be changed by changing the solid-liquid contact area.

[0177] Self-transport principle of hydrophilic abrasive particles and hydrophobic substrate:

[0178] The hydrophilic protrusions on the back of the desert beetle and the hydrophobic back surface have good self-transport ability. The principle is to collect water in the air by hydrophilic abrasive particles, condense into droplets, and then use gravity to make the water droplets flow through the hydrophobic surface of the back to the mouth. The formula for the uneven induced surface tension difference on the back of the beetle is:

[0179] δF = σ (cosθ1-cosθ2)

[0180] Where: δF is the surface tension difference, σ is the surface tension of water, θ1 and θ2 are the contact angles of water on the hydrophobic and hydrophilic regions, respectively.

[0181] The water collection efficiency formula is:

[0182]

[0183] Where: W C is the water collection efficiency, with a unit of g / m 2 / h; W is the total water collection mass, with a unit of g; S and H are the water collection area (m 2 ) and the total water collection time (h), respectively.

[0184] Based on the basic wetting principle, the self-transport of the cooling medium on the grinding wheel is divided into three processes: cooling medium droplet condensation, cooling medium droplet growth, and cooling medium droplet shedding. The specific process is that the cooling medium is sprayed to the grinding wheel surface through the atomizing nozzle 10 of micro-lubrication, the hydrophilic abrasive particle clusters on the outer circumferential surface of the grinding wheel preferentially contact the atomized cooling medium, the cooling medium preferentially nucleates and condenses on the abrasive particle clusters, the cooling medium that does not contact the abrasive particle clusters is sprayed on the super-hydrophobic surface, the super-hydrophobic surface has no strong adhesion, and the cooling medium will be self-transported through the small grooves on the surface to the abrasive particle cluster position, accelerating the growth of the liquid droplets at the abrasive particle cluster position, and then falling off under the action of gravity and the rotation force of the grinding wheel.

[0185] Through the combination of hydrophilic abrasive particle clusters and hydrophobic surfaces, the efficiency of the cooling medium participating in the grinding process is improved, the cooling medium absorbs heat through heat exchange, reduces the temperature during grinding, and improves the quality of the processed products.

[0186] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A desert beetle-rice leaf bionic grinding wheel, characterized in that: include: A substrate having a super hydrophobic layer provided on its outer circumferential surface; Hydrophilic abrasive clusters are arranged on the super-hydrophobic layer on the outer circumference of the substrate; The super-hydrophobic layer includes raised structures arranged on the outer circumference of the substrate, with recessed structures formed between the raised structures. The surfaces of the raised and recessed structures are distributed with stepped grooves of different depths that imitate the surface of rice leaves. The surfaces of the raised and recessed structures are also distributed with papillary microstructures. The hydrophilic abrasive cluster is a bionic hydrophilic protrusion on the back of a desert beetle, and is made of oxidized diamond abrasive grains. The hydrophilic abrasive cluster is electroplated on the outer circumference of the substrate; the hydrophilic abrasive cluster is arranged in phyllodectic or staggered order on the outer circumference of the substrate.

2. A production process for a desert beetle-rice leaf bionic grinding wheel, characterized in that: The method is implemented by using a desert beetle-rice leaf bionic grinding wheel as claimed in claim 1, comprising: The drag-reducing microstructure pattern on the substrate surface is processed and the substrate surface is scanned by diffraction laser. Step grooves similar to the surface of rice leaves are formed on the substrate surface to obtain a super-hydrophobic layer. After the processed substrate is cleaned, abrasive grains are electroplated on the super-hydrophobic layer on the outer circumference of the substrate in the form of abrasive grain clusters, forming hydrophilic abrasive grain clusters arranged in sequence on the outer circumference of the substrate.

3. The production process of the desert beetle-rice leaf bionic grinding wheel according to claim 2, characterized in that: Before electroplating the abrasive grains, the abrasive grains are subjected to a hydrophilic treatment, and the abrasive grains are diamond abrasive grains.

4. The production process of the desert beetle-rice leaf bionic grinding wheel according to claim 2, characterized in that: A mask with sequentially arranged holes is used, which is pasted on the substrate. The abrasive grains are fixed in the grinding holes with a binder. The abrasive grains in each hole form a hydrophilic abrasive cluster. After the abrasive grains are initially fixed by electroplating, the mask is removed and finally electroplating is performed to thicken the surface.

5. The production process of the desert beetle-rice leaf bionic grinding wheel according to claim 4, characterized in that: The holes on the mask are arranged in phylloidal order or staggered order, so as to form hydrophilic abrasive grain clusters arranged in phylloidal order or hydrophilic abrasive grain clusters arranged in staggered order.

6. A grinding system using the desert beetle-rice leaf bionic grinding wheel according to any one of claims 1, characterized in that: include: Atomizing nozzle, connected to the coolant supply assembly; The main shaft, the base of the desert beetle-rice leaf bionic grinding wheel is installed at the output end of the main shaft; The fixture is installed toward the spindle and is used to clamp the workpiece to be processed.

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