Water mill edge grinding wheel

Abstract

The invention relates to the technical field of grinding wheel equipment, in particular to a water mill edge grinding wheel which comprises a metal base body and a tool bit. The tool bit is connected to the metal base body in a sintering mode. The tool bit comprises a first tool body and a second tool body, and the first tool body and the second tool body are each of an annular structure. The inner peripheral side of the second cutter body is fixedly connected with the outer peripheral side of the first cutter body, and the hardness of the first cutter body is larger than that of the second cutter body. The matrix of the second cutter body is soft relative to the matrix of the first cutter body, corner chipping or corner collision cannot be caused in the large-size grinding process, the ground ceramic tile can be guided to stably enter the grinding area of the first cutter body, and the grinding precision and the machined finished product yield are improved. The carcass of the first cutter body is harder, the overall abrasion resistance is better, and the service life of the whole water mill edge grinding wheel can be prolonged. The combination of the first cutter body and the second cutter body can be perfectly compatible, sharpness and abrasion resistance are ensured, the multi-sample requirement of ceramic tile processing is met, and compatibility is higher.

Description

Technical Field

[0001] The invention relates to the technical field of grinding wheel equipment, in particular to a water-mill edging wheel. Background Art

[0002] A water-abrasive squaring wheel, also known as a diamond squaring wheel, is a type of grinding tool that uses diamond as its primary abrasive. It exhibits extremely high hardness and wear resistance. Water-abrasive squaring wheels are widely used in the precision machining and surface treatment of various materials, such as polishing ceramic products like tiles and porcelain, or polishing and grinding stone materials like marble and granite. With the booming development of the architectural ceramics industry, tile processing factories are continuously improving processing efficiency through technological innovation to enhance their market competitiveness, while also continuously exploring ways to reduce costs and increase efficiency in the use of abrasive tools. Against this backdrop, water-abrasive wheels, as core components in tile grinding processes, face increasingly stringent performance requirements.

[0003] Currently, the industry generally adopts a technical solution to extend the life of water grinding wheels by increasing the wear resistance of the grinding wheel carcass. While this solution meets the durability requirements of water grinding wheels to a certain extent, it also leads to a series of technical problems: First, the increased carcass hardness easily causes tile surface cracking during the grinding process, seriously affecting the processing yield rate; second, the excessively high carcass hardness reduces the sharpness of the grinding tool, resulting in a narrow range of applicable tile sizes and poor compatibility. Summary of the Invention

[0004] In order to solve the technical defects mentioned in the above background technology, the purpose of the present invention is to provide a water mill edging wheel.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A water-mill edging wheel comprises: a metal base and a cutter head; the cutter head is sintered and connected to the metal base; the cutter head comprises a first cutter body and a second cutter body, the first cutter body and the second cutter body are both arranged as an annular structure, the inner circumference of the second cutter body is fixedly connected to the outer circumference of the first cutter body, and the hardness of the first cutter body is greater than that of the second cutter body.

[0007] By adopting this technical solution, the second blade body is softer than the first blade body, preventing chipping or corner collision during large-scale grinding. It also guides the tile being ground smoothly into the grinding area of ​​the first blade body, improving grinding precision and the yield rate of the finished product. The first blade body has a harder body and better overall wear resistance, which can extend the service life of the entire water-based grinding wheel and save costs. The combination of the first and second blade bodies is perfectly compatible and ensures sharpness and wear resistance, meeting the diverse sample requirements of tile processing and providing higher compatibility.

[0008] Furthermore, the raw materials of the first blade body include a first metal powder, which includes the following components in mass percentage: 10-35% copper powder, 40-70% iron powder, 2-10% nickel powder, 2-14% tin powder, 2-10% cobalt powder, 2-10% zinc powder, and 0-8% graphite particles.

[0009] Furthermore, the raw materials of the second blade body include a second metal powder, which includes the following components in mass percentage: 30-55% copper powder, 20-40% iron powder, 2-10% nickel powder, 2-14% tin powder, 2-10% cobalt powder, 2-10% zinc powder, and 0-8% graphite particles.

[0010] Furthermore, the first blade body and the second blade body both include diamonds, and the weight proportion of the diamonds in the first blade body and the second blade body is 1-5%.

[0011] Furthermore, the weight proportion of diamonds in the first blade body is greater than or equal to the weight proportion of diamonds in the second blade body, which can improve the wear resistance of the first blade body.

[0012] Furthermore, the diameter of the diamond grains in the first blade body is greater than or equal to the diameter of the diamond grains in the second blade body, which can improve the cutting sharpness of the first blade body.

[0013] Furthermore, the width of the second blade along the diameter direction is less than or equal to the width of the first blade along the diameter direction, which can ensure the effect of grinding corners during processing and ensure the service life of the product.

[0014] Furthermore, the second blade body, facing away from the first blade body, is provided with a plurality of open grooves spaced apart along the circumference. The length of the grooves is aligned with the thickness of the second blade body. This allows the second blade body to withstand greater grinding loads, effectively improving processing performance and resolving the problem of traditional edge grinding wheels being prone to surface and corner chipping under high-speed operation. The grooves also enhance the sharpness of the second blade body, resulting in better edge grinding results.

[0015] In summary, the beneficial effects of the present invention are:

[0016] The second blade body of the present invention is softer than the first blade body, preventing chipping or corner collision during large-scale grinding. It also guides the tile being ground smoothly into the grinding area of ​​the first blade body, improving grinding precision and the yield rate of the finished product. The first blade body has a harder body and better overall wear resistance, which can extend the service life of the entire water-based grinding wheel and save costs. The combination of the first and second blade bodies is perfectly compatible and ensures both sharpness and wear resistance, meeting the multi-sample requirements of tile processing and providing higher compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of an embodiment of a water-mill edging wheel of the present invention;

[0018] Figure 2 It is a front view of another embodiment of the water mill edging wheel of the present invention.

[0019] Description of reference numerals in the figures:

[0020] 1. Water-grinding edging wheel; 2. Metal base; 3. Cutting head; 31. First cutting body; 32. Second cutting body; 33. Groove. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention are within the scope of protection of the present invention.

[0022] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0023] In the description of the present invention, if words such as "several" are used, they mean one or more; "more" means two or more; "greater than," "less than," and "exceed" are understood to exclude the number itself; and "above," "below," and "within" are understood to include the number itself. The terms "first," "second," and "third" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number of the indicated technical features, or as implicitly specifying the order of the indicated technical features.

[0024] The following is combined with Figure 1-2 , the embodiments of the present invention are described in further detail.

[0025] A water mill edging wheel 1, such as Figure 1 、 2As shown, it includes a metal base 2 and a blade head 3. The blade head 3 is sintered and connected to the metal base 2. The blade head 3 includes a first blade body 31 and a second blade body 32. The first blade body 31 and the second blade body 32 are both arranged in an annular structure. The inner circumference of the second blade body 32 is fixedly connected to the outer circumference of the first blade body 31. The hardness of the first blade body 31 is greater than that of the second blade body 32.

[0026] The second blade body 32 has a softer body than the first blade body 31, which prevents chipping or corner collision during large-scale grinding. It also guides the ground tile smoothly into the grinding area of ​​the second blade body 32, improving grinding accuracy and the yield rate of the finished product. The first blade body 31 has a harder body and better overall wear resistance, which can extend the service life of the entire water-grinding edge grinding wheel 1 and save costs. The combination of the first blade body 31 and the second blade body 32 is perfectly compatible and ensures sharpness and wear resistance, meeting the multi-sample requirements of tile processing and having higher compatibility.

[0027] In some embodiments, the raw materials for the first blade body 31 include a first metal powder, which comprises the following components, calculated by mass percentage: 10-35% copper powder, 40-70% iron powder, 2-10% nickel powder, 2-14% tin powder, 2-10% cobalt powder, 2-10% zinc powder, and 0-8% graphite particles. The remaining raw material is diamond, where the proportion of diamond can be 1-5%. The sum of the above components of the first metal powder and the total proportion of diamond is 100%. The matrix of the first blade body 31 is iron-based, which has high hardness and strong wear resistance, effectively ensuring a long service life.

[0028] More preferably, the mass proportions of the components of the first metal powder are copper powder 14-30%, iron powder 45-70%, nickel powder 5-7%, tin powder 5-12%, cobalt powder 3-8%, zinc powder 3-8%, graphite particles 3-5%, and the diamond content is set to 2-4.5%. The sum of the total weight ratios of the above components is 100%.

[0029] In some embodiments, the raw materials for the second blade body 32 include a second metal powder, which comprises the following components by mass percentage: 30-55% copper powder, 20-40% iron powder, 1-8% nickel powder, 2-14% tin powder, 2-10% cobalt powder, 2-10% zinc powder, and 0-8% graphite particles. The remaining raw material is diamond, where the proportion of diamond can be 1-5%. The sum of the above components of the first metal powder and the total proportion of diamond is 100%. The second blade body 32 has a copper-based matrix. The copper-based matrix has low hardness, a soft matrix, and good toughness. The combination of the copper-based matrix and diamond can achieve better sharpness, ensuring sufficient cutting depth when the second blade body 32 first contacts the product being processed, and achieving a better grinding effect.

[0030] More preferably, the mass proportions of the components of the second metal powder are copper powder 44-51%, iron powder 28-40%, nickel powder 3-8%, zinc powder 3-8%, tin powder 3-8%, cobalt powder 3-8%, and graphite particles 3-5%. The diamond content is set to 2-4.5%. The sum of the total weight ratios of the above components is 100%, and the grinding sharpness is better.

[0031] In some embodiments, the weight ratio of diamonds in the first blade body 31 is greater than or equal to the weight ratio of diamonds in the second blade body 32 , which can improve the wear resistance of the first blade body 31 .

[0032] Specifically, the diameter of the diamond particles in the first blade body 31 is greater than or equal to the diameter of the diamond particles in the second blade body 32 , which can improve the cutting sharpness of the first blade body 31 and extend its service life.

[0033] The hardness between the first blade body 31 and the second blade body 32 is changed by changing the content of copper powder, iron powder and diamond, thereby adapting to more types of products and improving compatibility and the yield of polished products.

[0034] In some embodiments, the width of the second blade 32 along the diameter direction is less than or equal to the width of the first blade 31 along the diameter direction, which can ensure the effect of grinding corners during processing and ensure the service life of the product.

[0035] In some embodiments, please refer to Figure 2 The second blade body 32, facing away from the first blade body 31, is provided with a plurality of open grooves 33 spaced along the circumference. The length of the grooves 33 is aligned with the thickness of the second blade body 32. The second blade body 32 can withstand greater grinding loads, effectively improving processing performance and resolving the problem of traditional edge grinding wheels prone to surface and corner chipping under high motor speeds. The grooves 33 also enhance the sharpness of the second blade body 32, resulting in better edge grinding results.

[0036] Example 1

[0037] Step S1: clean the surface of the metal substrate 2 to remove any oil stains or rust; weigh and prepare the corresponding raw materials according to the formula of the water-grinding squaring wheel 1;

[0038] The raw materials of the first blade body 31 include the following components in parts by weight: 10 parts of copper powder, 70 parts of iron powder, 2 parts of nickel powder, 2 parts of tin powder, 2 parts of cobalt powder, 2 parts of zinc powder, 8 parts of graphite particles, and 4 parts of diamond.

[0039] The raw materials of the second blade body 32 include the following components in parts by weight: 30 parts of copper powder, 40 parts of iron powder, 10 parts of cobalt powder, 8 parts of nickel powder, 2 parts of tin powder, 2 parts of zinc powder, 5 parts of graphite particles, and 3 parts of diamond.

[0040] The raw materials of the first blade 31 and the corresponding wetting agent are placed in a three-dimensional mixer for mixing, and then taken out after two hours for use. Simultaneously, the raw materials of the second blade 32 and the corresponding wetting agent are placed in another three-dimensional mixer for mixing, and then taken out after two hours for use. The weight of each wetting agent can be set to 1 part.

[0041] Step S2, mold assembly: assembling the cold-pressed ring powder into a mold in sequence;

[0042] Step S3, cold pressing: placing the assembled mold under a four-column hydraulic press, cold pressing at a pressure of 1200 kN, and maintaining the pressure for one minute;

[0043] Step S4, hot pressing and sintering: placing the assembled mold in a resistance bell furnace and performing sintering and hot pressing according to set process parameters;

[0044] Step S5, demoulding: After the product is demoulded, it undergoes processes such as fine turning and sharpening to fully expose the diamond.

[0045] Example 2

[0046] Step S1: clean the surface of the metal substrate 2 to remove any oil stains or rust; weigh and prepare the corresponding raw materials according to the formula of the water-grinding squaring wheel 1;

[0047] The raw materials of the first blade body 31 include the following components in parts by weight: 35 parts of copper powder, 40 parts of iron powder, 2 parts of nickel powder, 14 parts of tin powder, 2 parts of cobalt powder, 5 parts of zinc powder, and 2 parts of diamond.

[0048] The raw materials of the second blade body 32 include the following components in parts by weight: 55 parts of copper powder, 20 parts of iron powder, 5 parts of zinc powder, 6 parts of tin powder, 10 parts of cobalt powder, 2 parts of nickel powder, 1 part of graphite particles, and 1 part of diamond.

[0049] The raw materials of the first blade 31 and the corresponding wetting agent are placed in a three-dimensional mixer for mixing, and then taken out after two hours for use; simultaneously, the raw materials of the second blade 32 and the corresponding wetting agent are placed in another three-dimensional mixer for mixing, and then taken out after two hours for use;

[0050] Step S2, mold assembly: assembling the cold-pressed ring powder into a mold in sequence;

[0051] Step S3, cold pressing: placing the assembled mold under a four-column hydraulic press, cold pressing at a pressure of 1200 kN, and maintaining the pressure for one minute;

[0052] Step S4, hot pressing and sintering: placing the assembled mold in a resistance bell furnace and performing sintering and hot pressing according to set process parameters;

[0053] Step S5, demoulding: After the product is demoulded, it undergoes processes such as fine turning and sharpening to fully expose the diamond.

[0054] Example 3

[0055] Step S1: clean the surface of the metal substrate 2 to remove any oil stains or rust; weigh and prepare the corresponding raw materials according to the formula of the water-grinding squaring wheel 1;

[0056] The raw materials of the first blade body 31 include the following components in parts by weight: 20 parts copper powder, 50 parts iron powder, 4.4 parts cobalt powder, 6 parts nickel powder, 8 parts tin powder, 5 parts zinc powder, 3 parts graphite particles, and 3.6 parts diamond.

[0057] The raw materials of the second blade body 32 include the following components in parts by weight: 42.5 parts of copper powder, 30 parts of iron powder, 3 parts of cobalt powder, 5 parts of nickel powder, 8 parts of tin powder, 4 parts of zinc powder, 4 parts of graphite particles, and 3.2 parts of diamond.

[0058] The raw materials of the first blade 31 and the corresponding wetting agent are placed in a three-dimensional mixer for mixing, and then taken out after two hours for use; simultaneously, the raw materials of the second blade 32 and the corresponding wetting agent are placed in another three-dimensional mixer for mixing, and then taken out after two hours for use;

[0059] Step S2, mold assembly: assembling the cold-pressed ring powder into a mold in sequence;

[0060] Step S3, cold pressing: placing the assembled mold under a four-column hydraulic press, cold pressing at a pressure of 1200 kN, and maintaining the pressure for one minute;

[0061] Step S4, hot pressing and sintering: placing the assembled mold in a resistance bell furnace and performing sintering and hot pressing according to set process parameters;

[0062] Step S5, demoulding: After the product is demoulded, it undergoes processes such as fine turning and sharpening to fully expose the diamond.

[0063] Example 4

[0064] Step S1: clean the surface of the metal substrate 2 to remove any oil stains or rust; weigh and prepare the corresponding raw materials according to the formula of the water-grinding squaring wheel 1;

[0065] The raw materials of the first blade body 31 include the following components in parts by weight: 10 parts of copper powder, 62 parts of iron powder, 8 parts of cobalt powder, 10 parts of nickel powder, 2 parts of tin powder, 2.5 parts of zinc powder, 0.5 parts of graphite particles, and 5 parts of diamond.

[0066] The raw materials of the second blade body 32 include the following components in parts by weight: 35 parts of copper powder, 40 parts of iron powder, 8 parts of cobalt powder, 8 parts of nickel powder, 2 parts of tin powder, 2.5 parts of zinc powder, 0.5 parts of graphite particles, and 4 parts of diamond.

[0067] The raw materials of the first blade 31 and the corresponding wetting agent are placed in a three-dimensional mixer for mixing, and then taken out after two hours for use; simultaneously, the raw materials of the second blade 32 and the corresponding wetting agent are placed in another three-dimensional mixer for mixing, and then taken out after two hours for use;

[0068] Step S2, mold assembly: assembling the cold-pressed ring powder into a mold in sequence;

[0069] Step S3, cold pressing: placing the assembled mold under a four-column hydraulic press, cold pressing at a pressure of 1200 kN, and maintaining the pressure for one minute;

[0070] Step S4, hot pressing and sintering: placing the assembled mold in a resistance bell furnace and performing sintering and hot pressing according to set process parameters;

[0071] Step S5, demoulding: After the product is demoulded, it undergoes processes such as fine turning and sharpening to fully expose the diamond.

[0072] Example 5

[0073] Step S1: clean the surface of the metal substrate 2 to remove any oil stains or rust; weigh and prepare the corresponding raw materials according to the formula of the water-grinding squaring wheel 1;

[0074] The raw materials of the first blade body 31 include the following components in parts by weight: 15 parts of copper powder, 55 parts of iron powder, 5 parts of cobalt powder, 8 parts of nickel powder, 4 parts of tin powder, 4 parts of zinc powder, 2 parts of graphite particles, and 4 parts of diamond.

[0075] The raw materials of the second blade body 32 include the following components in parts by weight: 39.2 parts of copper powder, 35 parts of iron powder, 5 parts of cobalt powder, 7 parts of nickel powder, 4 parts of tin powder, 4 parts of zinc powder, 2 parts of graphite particles, and 3.8 parts of diamond.

[0076] The raw materials of the first blade 31 and the corresponding wetting agent are placed in a three-dimensional mixer for mixing, and then taken out after two hours for use; simultaneously, the raw materials of the second blade 32 and the corresponding wetting agent are placed in another three-dimensional mixer for mixing, and then taken out after two hours for use;

[0077] Step S2, mold assembly: assembling the cold-pressed ring powder into a mold in sequence;

[0078] Step S3, cold pressing: placing the assembled mold under a four-column hydraulic press, cold pressing at a pressure of 1200 kN, and maintaining the pressure for one minute;

[0079] Step S4, hot pressing and sintering: placing the assembled mold in a resistance bell furnace and performing sintering and hot pressing according to set process parameters;

[0080] Step S5, demoulding: After the product is demoulded, it undergoes processes such as fine turning and sharpening to fully expose the diamond.

[0081] Example 6

[0082] Step S1: clean the surface of the metal substrate 2 to remove any oil stains or rust; weigh and prepare the corresponding raw materials according to the formula of the water-grinding squaring wheel 1;

[0083] The raw materials of the first blade body 31 include the following components in parts by weight: 25 parts of copper powder, 45 parts of iron powder, 3 parts of cobalt powder, 5 parts of nickel powder, 9 parts of tin powder, 6 parts of zinc powder, 4 parts of graphite particles, and 3 parts of diamond.

[0084] The raw materials of the second blade body 32 include the following components in parts by weight: 46.2 parts of copper powder, 25 parts of iron powder, 2 parts of cobalt powder, 4 parts of nickel powder, 9 parts of tin powder, 6 parts of zinc powder, 5 parts of graphite particles, and 2.8 parts of diamond.

[0085] The raw materials of the first blade 31 and the corresponding wetting agent are placed in a three-dimensional mixer for mixing, and then taken out after two hours for use; simultaneously, the raw materials of the second blade 32 and the corresponding wetting agent are placed in another three-dimensional mixer for mixing, and then taken out after two hours for use;

[0086] Step S2, mold assembly: assembling the cold-pressed ring powder into a mold in sequence;

[0087] Step S3, cold pressing: placing the assembled mold under a four-column hydraulic press, cold pressing at a pressure of 1200 kN, and maintaining the pressure for one minute;

[0088] Step S4, hot pressing and sintering: placing the assembled mold in a resistance bell furnace and performing sintering and hot pressing according to set process parameters;

[0089] Step S5, demoulding: After the product is demoulded, it undergoes processes such as fine turning and sharpening to fully expose the diamond.

[0090] Example 7

[0091] Step S1: clean the surface of the metal substrate 2 to remove any oil stains or rust; weigh and prepare the corresponding raw materials according to the formula of the water-grinding squaring wheel 1;

[0092] The raw materials of the first blade body 31 include the following components in parts by weight: 29 parts copper powder, 40 parts iron powder, 2 parts cobalt powder, 3 parts nickel powder, 11 parts tin powder, 7 parts zinc powder, 6 parts graphite particles, and 2 parts diamond.

[0093] The raw materials of the second blade body 32 include the following components in parts by weight: 47.7 parts of copper powder, 20 parts of iron powder, 1.5 parts of cobalt powder, 3 parts of nickel powder, 11 parts of tin powder, 8 parts of zinc powder, 7 parts of graphite particles, and 1.8 parts of diamond.

[0094] The raw materials of the first blade 31 and the corresponding wetting agent are placed in a three-dimensional mixer for mixing, and then taken out after two hours for use; simultaneously, the raw materials of the second blade 32 and the corresponding wetting agent are placed in another three-dimensional mixer for mixing, and then taken out after two hours for use;

[0095] Step S2, mold assembly: assembling the cold-pressed ring powder into a mold in sequence;

[0096] Step S3, cold pressing: placing the assembled mold under a four-column hydraulic press, cold pressing at a pressure of 1200 kN, and maintaining the pressure for one minute;

[0097] Step S4, hot pressing and sintering: placing the assembled mold in a resistance bell furnace and performing sintering and hot pressing according to set process parameters;

[0098] Step S5, demoulding: After the product is demoulded, it undergoes processes such as fine turning and sharpening to fully expose the diamond.

[0099] Comparative Example 1

[0100] The difference from Example 3 is that the raw materials of the first blade body 31 include 40 parts of copper powder and 30 parts of iron powder.

[0101] Comparative Example 2

[0102] The difference from Example 3 is that the raw materials of the second blade body 32 include 17.8 parts of copper powder and 55 parts of iron powder.

[0103] Comparative Example 3

[0104] The difference from Example 3 is that the raw materials of the first blade body 31 are: 6 parts of copper powder and 64 parts of iron powder;

[0105] Comparative Example 4

[0106] The difference from Example 3 is that the raw materials of the second blade body 32 include 60 parts of copper powder and 16 parts of iron powder.

[0107] Examples 1-7 and Comparative Examples 1-4 were prepared by weighing raw materials in the proportions shown in the table below, and the products were prepared according to the steps in Examples 1-7. For details, see Tables 1 and 2:

[0108] Table 1: Raw material ratios of the first blade body 31 of Examples 1-7 and Comparative Examples 1-4

[0109]

[0110] Table 2: Ratio of raw materials for the second blade body 32 of Examples 1-7 and Comparative Examples 1-4

[0111]

[0112] Working conditions: Using an edging wheel to process a ceramic workpiece measuring 800×800×10mm. Testing items include sharpness, motor load during use, and service life. Eleven water-grinding edging wheels 1, manufactured using a unified process, were installed on the polishing machine. The thickness of the workpiece before entering the plate and the thickness of the plate after being processed by the water-grinding edging wheel 1 were measured. The thickness difference was calculated as the processing size and the result was recorded in mm. For example, if the thickness before processing was 30mm and the thickness after processing was 25mm, the processing size was 5mm. The larger the processing size, the higher the sharpness.

[0113] The sharpness of the water-grinding edging wheel 1 can be judged by recording the load of the motor during use; the load of the motor can be determined according to the current, and the result is recorded in A;

[0114] The service life refers to the maximum time limit of the continuous use of the water-grinding edging wheel 1, which is calculated in hours.

[0115] The specific results are shown in Table 3 below.

[0116] Table 3 is the performance test data of the water-mill edging wheel 1 in each example

[0117]

[0118] According to the contents of Table 3 above, the water-mill edging wheel 1 prepared in Example 3 of the present invention has good sharpness, significantly reduced motor load, and long service life. The workpiece feels smooth, without chipping or porcelain chipping; at the same time, the sparks generated during operation are concentrated and do not disperse. On the same edging machine, the processing size of ceramic workpieces is large and the sharpness is good; the reduction in motor load during use is also significant. After installing the water-mill edging wheel 1 prepared by the present invention, the motor load is controlled at 5-8A. Compared with the traditional edging wheel, the motor load reaches 6-12A when used. The present invention greatly reduces the motor load. It can be seen that the water-mill edging wheel 1 prepared by the present invention has excellent sharpness performance.

[0119] In addition, by properly adjusting the ratio of metal powder to diamond, the overall strength and hardness of the water-grinding squaring wheel 1 and the toughness of the second blade 32 can be adjusted, thereby improving the wear resistance and service life of the water-grinding squaring wheel 1 .

[0120] Compared with Example 3, in Example 1, the iron powder content of the first blade 31 is significantly increased and the copper powder content is significantly reduced. The iron powder content of the second blade 32 is higher than the copper powder content, so that the first blade 31 and the second blade 32 have high hardness and longer service life. At the same time, the grinding sharpness of the cutter head 3 is reduced, which will affect the cutting amount of the first blade 31 and the second blade 32 when they just come into contact with the processed product, resulting in the possibility of chipping during the grinding process.

[0121] Compared with Example 3, in Examples 2, 6, and 7, the difference between the iron powder content and the copper powder content of the first blade 31 is smaller, and the difference between the iron powder content and the copper powder content of the second blade 32 is larger. The copper powder content of the first blade 31 is higher, which reduces the hardness of the first blade 31 and affects its service life. However, its toughness is increased, the sharpness is better, and the motor load is significantly reduced. The quality of the polished product is better, the grinding effect is better, and the phenomenon of chipping of corners and surfaces is effectively avoided.

[0122] Compared with Example 3, in Examples 4 and 5, the difference between the iron powder content and the copper powder content of the first blade 31 is relatively large, and the difference between the iron powder content and the copper powder content of the second blade 32 is relatively small. The first blade 31 has a high iron powder content and a low copper powder content, which makes the first blade 31 have high hardness and a longer service life. The second blade 32 has good toughness and can also effectively ensure the cutting amount of the second blade 32 when it just contacts the processed product. The grinding effect is better, but the sharpness is relatively poor.

[0123] Compared with Example 3, in Comparative Example 1, the ratio of the copper powder content to the iron powder content of the first blade 31 is adjusted, and the copper powder content is higher than the iron powder content. The sharpness, motor load, product grinding effect and other performances of the two are not much different, but the service life of the water-grinding edging wheel 1 prepared in Comparative Example 1 is shorter.

[0124] Compared with Example 3, in Comparative Example 2, the iron powder content of the second blade 32 is greater than the copper powder content, the hardness of the second blade 32 is higher, and the toughness is poorer. Although the service life is increased, the sharpness, motor load, product polishing effect and other performance are all worse than those of Example 3.

[0125] Compared with Example 3, the difference between the content of copper powder and iron powder in the first blade body 31 of Comparative Example 3 is larger, and the copper powder content is less than 10%, which makes the overall toughness of the first blade body 31 poor. Although the service life is increased, the sharpness, motor load, product grinding effect and other performance are all worse than those of Example 3.

[0126] Compared with Example 3, in Comparative Example 4, the difference between the content of copper powder and iron powder in the second blade 32 is large, the content of iron powder is too low, the toughness of the second blade 32 is better, and the performance in terms of sharpness, motor load, product polishing effect, etc. is good, but the service life is short and the cost is high.

[0127] Therefore, the present invention improves the working performance of the cutter head 3 by adjusting the hardness of the first cutter body 31 and the hardness of the second cutter body 32, so that it will not cause chipping or collision of corners during large-size grinding. It can be perfectly compatible and ensure sharpness and wear resistance, meeting the multi-sample requirements of tile processing. The overall wear resistance is better, which can extend the service life of the entire water-grinding edging wheel 1, which is conducive to cost savings.

[0128] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A water mill edging wheel, characterized in that: include: A metal base (2) and a cutter head (3); the cutter head (3) is sintered and connected to the metal base (2); the cutter head (3) comprises a first cutter body (31) and a second cutter body (32), the first cutter body (31) and the second cutter body (32) are both arranged in an annular structure, the inner peripheral side of the second cutter body (32) is fixedly connected to the outer peripheral side of the first cutter body (31), and the hardness of the first cutter body (31) is greater than the hardness of the second cutter body (32).

2. The water mill edging wheel according to claim 1, characterized in that: The raw material of the first blade body (31) includes a first metal powder, which includes the following components in percentage by mass: 10-35% copper powder, 40-70% iron powder, 2-10% nickel powder, 2-14% tin powder, 2-10% cobalt powder, 2-10% zinc powder, and 0-8% graphite particles.

3. The water mill edging wheel according to claim 1, characterized in that: The raw material of the second blade body (32) includes a second metal powder, which includes the following components in percentage by mass: 30-55% copper powder, 20-40% iron powder, 2-10% nickel powder, 2-14% tin powder, 2-10% cobalt powder, 2-10% zinc powder, and 0-8% graphite particles.

4. The water mill edging wheel according to claim 2 or 3, characterized in that: The first blade body (31) and the second blade body (32) both further comprise diamonds, and the weight proportion of the diamonds in the first blade body (31) and the second blade body (32) is 1-5%.

5. The water mill edging wheel according to claim 4, characterized in that: The weight proportion of diamonds in the first blade body (31) is greater than or equal to the weight proportion of diamonds in the second blade body (32).

6. The water mill edging wheel according to claim 4, characterized in that: The particle size diameter of the diamond in the first blade body (31) is greater than or equal to the particle size diameter of the diamond in the second blade body (32).

7. The water mill edging wheel according to claim 1, characterized in that: The width of the second blade body (32) along the diameter direction is less than or equal to the width of the first blade body (31) along the diameter direction.

8. The water mill edging wheel according to claim 1, characterized in that: The second blade body (32) is provided with a plurality of open grooves (33) spaced apart along the circumferential direction on the peripheral side away from the first blade body (31), and the length direction of the grooves (33) is arranged in the same direction as the thickness direction of the second blade body (32).

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