Diamond grinding working ring and composite grinding wheel

Abstract

The invention relates to a diamond grinding working ring and a combined type grinding wheel, the working ring comprises an annular working ring body, the working ring body is composed of a plurality of tooth pieces which are evenly distributed at intervals, and a through cooling channel is formed between every two adjacent tooth pieces; a plurality of plating layers are arranged on the surfaces of one sides of the tooth pieces at intervals, and a plurality of diamonds are arranged in the plating layers at intervals. The plurality of plating layers and the plurality of diamonds in the plating layers respectively form a plurality of working layers, the plurality of diamonds are respectively arranged in a single-layer mode, and the area between every two adjacent working layers is a non-working layer; the thickness h of each plating layer, the width B of the working layer, the width delta of the non-working layer and the particle size b of each diamond meet the following relational expression: 0.5 * b < = delta < 2 * b; b < = h < 1.5 * b; b < = B < 3 * b. The working environment condition of the diamond particles is good, the structure of immediate grinding, immediate cooling and immediate discharging is adopted, the phenomenon of powder chip blockage is eliminated, the grinding effect is good, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of grinding wheels, in particular to a diamond grinding working ring and a composite grinding wheel. Background Art

[0002] The existing thin-flaked, spliced ​​cup-shaped grinding wheel for edge grinding is a relatively advanced product. This metal-bonded grinding wheel, produced using powder metallurgy, is used for both coarse and fine grinding processes. Compared to integral grinding wheels, it offers improved cooling and chip removal, high sharpness, long life, and superior machining quality. However, the manufacturing process for thin-flaked teeth requires numerous steps, complex molds, high costs, significant equipment investment, and high energy consumption. When manufacturing thin-flaked teeth with structures, the interference of bulk density and the powder metallurgy process's suppression of powder fluidity make it difficult to ensure a balanced sintering density across all parts of the thin-flaked teeth to meet design standards, resulting in inadequate structural performance. The strength of the forces required to withstand the thin-flaked teeth is constrained by the powder formulation, which in turn affects their circumferential thickness. It's generally difficult to achieve a circumferential diamond count of less than or equal to one grain at any radial point on each thin-flaked tooth's working surface, so powder chips easily create diamond pile-like obstructions, leading to blockage.

[0003] Blockage, particularly in grinding wheels with finer diamond grit, can have difficult-to-overcome negative effects, manifesting as high grinding and frictional heat, which can easily cause burns and chipping on the workpiece's grinding surface. Diamond grit requires a high exposed height to accommodate chip storage, removal, and cooling, necessitating a strong binding agent. This can lead to a decrease in self-sharpening properties, limiting the sharpness of the grinding wheel. Manufacturing flake teeth with two or more composite grit sizes in the same radial direction is highly complex and costly. Similar issues exist with flaked, spliced ​​peripheral grinding wheels used for edge grinding. Summary of the Invention

[0004] The invention provides a diamond grinding working ring and a composite grinding wheel, aiming to solve the problems in the prior art.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A diamond grinding working ring comprises an annular working ring body, the working ring body being composed of a plurality of evenly spaced tooth plates, with a through cooling channel formed between two adjacent tooth plates; a plurality of plating layers being spaced apart on one side surface of the plurality of tooth plates, wherein a plurality of diamonds are spaced apart within each of the plurality of plating layers; the plurality of plating layers and the plurality of diamonds therein respectively form a plurality of working layers, wherein the plurality of diamonds are each provided as a single layer, and the area between two adjacent working layers is a non-working layer;

[0007] The thickness h of each coating layer, the width B of the working layer, the width δ of the non-working layer, and the particle size b of each diamond satisfy the following relationship:

[0008] 0.5×b≤δ<2×b;

[0009] b≤h<1.5×b;

[0010] b≤B<3×b;

[0011] Wherein, the thickness of each coating layer h (nm) and the width of the working layer B (cmm),

[0012] The particle size b (nm) of each diamond and the width δ (cmm) of the non-working layer. The beneficial effects of the present invention are as follows: the diamond contained in the coating layer on the tooth piece is a single layer of diamond, the manufacturing cycle is short, the coating area of ​​the tooth piece is small, it is suitable for mass production, and the cost is reduced. Compared with powder metallurgy products, a large amount of binder powder can be saved; the design of the coating layer thickness can improve the holding force of the diamond; the use of electroplating or chemical plating processes can easily achieve the setting of a single layer of diamond, and it is convenient to realize a tooth piece with a single layer of small-particle size (such as nanometer) diamond abrasive grains; compared with products with powder metallurgy binders, the overall diamond concentration of the grinding wheel can be greatly reduced, reducing the material cost of diamond.

[0013] The cooling channel between the teeth is also a chip removal channel, which can be used for gas or liquid cooling media to achieve a dry and wet dual-use and internal cooling mode.

[0014] The working environment conditions of the diamond abrasive grains in the present invention are good. The single-layer diamond abrasive grain design causes micro-grooves between the diamond abrasive grains on the working surface of the tooth plate to be automatically formed. The micro-grooves between the abrasive grains and the cooling / chip removal channels together construct a functional microstructure that can grind, cool and remove chips immediately (the working abrasive grains during grinding are immediately cooled, and the chips generated by grinding are immediately discharged). This greatly reduces the heat loss of the diamond and eliminates the chip clogging phenomenon. The present invention is suitable for finer diamond abrasive grains, has a good grinding effect, a long service life and a low cost.

[0015] The present invention realizes a functional structural design of a grinding tool with a single abrasive grain as the design object, which is conducive to expanding the application of diamond grinding tools in high-speed and high-precision machining.

[0016] On the basis of the above technical solution, the present invention can also be improved as follows.

[0017] Furthermore, the multiple tooth plates are divided into an inner tooth group and an outer tooth group, and the multiple tooth plates in the inner tooth group are evenly spaced circumferentially; the multiple tooth plates in the outer tooth group are evenly spaced circumferentially and are located outside the inner tooth group.

[0018] The beneficial effects of adopting the above further solution are simple structure, reasonable distribution of multiple teeth, and the ability to achieve multi-segment and multi-grain size seamless transition grinding, which is convenient for processing.

[0019] Furthermore, the width of the plurality of tooth plates in the plurality of inner tooth groups is greater than, equal to, or smaller than the width of the plurality of tooth plates in the plurality of outer tooth groups.

[0020] The beneficial effect of adopting the above further solution is that the sizes of the multiple teeth are reasonably designed, which can not only realize the multi-segment and multi-grain seamless transition grinding of the workpiece, but also save consumables and reduce costs.

[0021] Furthermore, the plurality of tooth pieces extend respectively along the axial direction of the working ring body, and the end surfaces at one end thereof are combined to form the end working surface of the working ring body.

[0022] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and the end surface formed at one end of the multiple teeth is used as the end surface working surface to facilitate grinding the workpiece and convenient processing.

[0023] Furthermore, the plurality of tooth pieces extend radially along the working ring body, and the end surfaces at one end thereof are combined to form a circumferential working surface of the working ring body.

[0024] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and the end surface formed at one end of the multiple teeth is used as the circumferential working surface to facilitate grinding the workpiece and convenient processing.

[0025] Furthermore, a plurality of the non-working layers are respectively provided with micro grooves at one end corresponding to the working surface of the working ring body.

[0026] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and the micro-grooves of the non-working layer are conducive to mechanical crushing, load reduction, and increased grinding wheel life.

[0027] Furthermore, the plated surfaces on the plurality of tooth plates are respectively in the form of a planar tooth plate structure or a wavy tooth plate structure.

[0028] The beneficial effect of adopting the above-mentioned further scheme is that the wavy-shaped tooth plate is beneficial to increasing the rigidity and strength of the tooth plate base, thereby reducing the thickness of the tooth plate base, which is beneficial to improving the self-sharpening property of the grinding wheel; increasing the circumferential width of the wavy-shaped electroplated tooth plate can reduce the number of tooth plates, simplify the assembly structure and reduce the assembly cost; the shape of the tooth plate is reasonably designed, which is convenient for grinding workpieces and easy to process.

[0029] Furthermore, the lower ends of the inner sides of the plurality of tooth plates are respectively fixedly connected with a fixing portion.

[0030] The beneficial effect of adopting the above further solution is that the structure of the tooth piece is reasonably set, and the tooth piece is conveniently assembled by utilizing the fixed portion, which makes assembly easy.

[0031] Furthermore, the widths of the plurality of working layers and / or the widths of the plurality of non-working layers are consistent or inconsistent.

[0032] The beneficial effect of adopting the above-mentioned further scheme is that the concentration of the working layer and the orderly arrangement of diamonds can be adjusted by setting the width; the size of the working layer and the non-working layer is set reasonably, which can achieve better sharpness of the teeth while also adjusting the wear resistance of different positions to achieve shape preservation and anti-deformation functions, and is conducive to chip removal and cooling.

[0033] The present invention also relates to a composite grinding wheel, comprising a grinding wheel base and a pressure plate, and also comprising the diamond grinding working ring as described above, wherein the working ring body is mounted on one side of the grinding wheel base; the pressure plate is located on the side of the working ring body away from the grinding wheel base and presses the working ring body tightly.

[0034] The beneficial effect of adopting the above further solution is that the present invention also provides a composite grinding wheel, in which the diamond abrasives have a good working environment condition, a structure of grinding, cooling and discharging immediately, eliminating the phenomenon of powder chip blockage, having a better grinding effect and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention;

[0036] Figure 2 for Figure 1 Enlarged view of E in the middle;

[0037] Figure 3 This is a front view of the first embodiment of the present invention;

[0038] Figure 4 for Figure 3 Cross-sectional view along the AA axis;

[0039] Figure 5 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention;

[0040] Figure 6 for Figure 5 Enlarged view of middle F;

[0041] Figure 7 This is a front view of a second embodiment of the present invention;

[0042] Figure 8 for Figure 7 Cross-sectional view along the BB direction;

[0043] Figure 9A perspective view of the tooth plates according to the first embodiment and the second embodiment of the present invention;

[0044] Figure 10 It is a front view of the tooth plate in the first embodiment and the second embodiment of the present invention;

[0045] Figure 11 One of the partial cross-sectional views of the tooth plate according to the first embodiment and the second embodiment of the present invention;

[0046] Figure 12 This is a second partial cross-sectional view of the tooth plate according to the first embodiment and the second embodiment of the present invention;

[0047] Figure 13 This is a schematic diagram of the three-dimensional structure of the third embodiment of the present invention;

[0048] Figure 14 for Figure 13 Enlarged view of middle G;

[0049] Figure 15 This is a front view of a third embodiment of the present invention;

[0050] Figure 16 for Figure 15 Cross-sectional view in CC direction;

[0051] Figure 17 This is a schematic structural diagram of a tooth piece 1 in a third embodiment of the present invention;

[0052] Figure 18 This is a schematic structural diagram of the tooth plate 2 in the third embodiment of the present invention;

[0053] Figure 19 Schematic diagram of the overall structure of the fourth embodiment of the present invention;

[0054] Figure 20 This is a partial structural diagram of a fourth embodiment of the present invention;

[0055] Figure 21 for Figure 20 Enlarged view of middle H;

[0056] Figure 22 This is a front view of a fourth embodiment of the present invention;

[0057] Figure 23 for Figure 22 Cross-sectional view along the DD direction.

[0058] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0059] 1. Working ring body; 2. Tooth; 3. Cooling channel; 4. Coating layer; 5. Diamond; 6. Working layer; 7. Non-working layer; 8. End working surface; 9. Circumferential working surface; 10. Micro groove; 11. Consolidation part; 12. Grinding wheel base; 13. Pressure plate; 14. Blade. DETAILED DESCRIPTION

[0060] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0062] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0063] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0064] Example 1

[0065] like Figures 1 to 23As shown, this embodiment provides a diamond grinding working ring, including an annular working ring body 1, the working ring body 1 is composed of a plurality of evenly spaced tooth plates 2, and a through cooling channel 3 is formed between two adjacent tooth plates 2; a plurality of plating layers 4 are provided on one side surface of the plurality of tooth plates 2, and a plurality of diamonds 5 are spaced apart in the plurality of plating layers 4; the plurality of plating layers 4 and the plurality of diamonds 5 therein respectively form a plurality of working layers 6, and the plurality of diamonds 5 are respectively provided in a single layer, and the area between two adjacent working layers 6 is a non-working layer 7;

[0066] The thickness h of each of the coating layers 4, the width B of the working layer 6, the width δ of the non-working layer 7, and the particle size b of each of the diamonds 5 satisfy the following relationship:

[0067] 0.5×b≤δ<2×b;

[0068] b≤h<1.5×b;

[0069] b≤B<3×b;

[0070] The thickness h of each of the coating layers 4 (units can reach nm) and the width of the working layer 6 are

[0071] The thickness B (unit can reach cm), the particle size b of each diamond 5 (unit can reach nm) and the width δ (unit can reach cm) of the non-working layer 7. The coating layer can be achieved by electroplating or chemical plating process.

[0072] The diamonds contained in the coating layer on the tooth piece are single-layer diamonds, with a short manufacturing cycle and a small coating area on the tooth piece, which is suitable for mass production and reduces costs. Compared with powder metallurgy products, a large amount of binder powder can be saved. The design of the coating layer thickness can improve the holding force of the diamond. The use of electroplating or chemical plating processes can easily achieve the setting of a single-layer diamond, and it is convenient to realize a tooth piece with a single layer of small-particle size (such as nanometer) diamond abrasive grains. Compared with products with powder metallurgy binders, the overall diamond concentration of the grinding wheel can be greatly reduced, reducing the material cost of diamonds.

[0073] The cooling channel between the teeth is also a chip removal channel, which can be used for gas or liquid cooling media to achieve a dry and wet dual-use and internal cooling mode.

[0074] Preferably, in this embodiment, the plurality of teeth 2 are preferably electroplated teeth.

[0075] In addition, this embodiment is suitable for brazing diamond tooth segments produced by brazing and chemical plating processes (brazing has a strong ability to hold diamond abrasive grains, which can meet the requirements of large margin and fast rough grinding).

[0076] In this embodiment, the working environment conditions of the diamond abrasives are good, and the single-layer diamond abrasive design causes micro-grooves to automatically form between the diamond abrasives on the working surface of the tooth. The micro-grooves between the abrasives and the cooling / chip removal channels together construct a functional microstructure that can grind, cool and remove chips immediately (the working abrasives during grinding are cooled immediately, and the chips generated by grinding are discharged immediately), which greatly reduces the heat loss of diamonds and eliminates the chip clogging phenomenon. It is suitable for finer diamond abrasives, has good grinding effect, long service life and low cost.

[0077] This embodiment realizes a functional structural design of a grinding tool with a single abrasive grain as the design object, which is conducive to expanding the application of diamond grinding tools in high-speed and high-precision machining.

[0078] Example 2

[0079] Based on Example 1, in this embodiment, the multiple tooth plates 2 are divided into an inner tooth group and an outer tooth group, and the multiple tooth plates 2 in the inner tooth group are evenly spaced circumferentially; the multiple tooth plates 2 in the outer tooth group are evenly spaced circumferentially, and are located on the outside of the inner tooth group.

[0080] This solution has a simple structure, and the multiple teeth 2 are reasonably distributed, which can realize multi-segment and multi-grain size seamless transition grinding processing, and is easy to process.

[0081] Preferably, in this embodiment, the plurality of tooth plates 2 in the outer tooth group and the plurality of tooth plates 2 in the inner tooth group can be staggered in sequence, or can be relatively distributed one by one. The latter is preferred. When staggered, the coolant has poor fluidity. The specific scheme is designed according to production requirements.

[0082] Based on the above solution, the working ring body 1 can be a single ring structure (see Figures 1 to 4 ), or a bicyclic structure (see Figures 5 to 18 ), the formation scheme of the multiple teeth 2 in the inner tooth group and the multiple teeth 2 in the outer tooth group in the double ring structure is as follows:

[0083] Solution 1: The multiple teeth 2 in the working ring body 1 have the same structure, and the multiple teeth 2 are divided into two groups. The multiple teeth 2 in the two groups are staggered in sequence; the outer sides of the multiple teeth 2 in one group are respectively cut off to form the multiple teeth 2 in the inner tooth group, and the inner sides of the multiple teeth 2 in the other group are respectively cut off to form the multiple teeth 2 in the outer tooth group (see Figures 5 to 12 ).

[0084] Solution 2: The multiple teeth 2 in the working ring body 1 are divided into two groups. The structures of the multiple teeth 2 in the two groups are different, and the multiple teeth 2 in the same group have the same structure; the multiple teeth 2 in one group are evenly spaced around the circumference, and the multiple teeth 2 in the other group are evenly spaced around the circumference, which are located outside the teeth 2 in one group (see Figures 13 to 18 ).

[0085] Example 3

[0086] On the basis of Example 2, in this embodiment, the width of the plurality of tooth plates 2 in the plurality of inner tooth groups is greater than, equal to, or less than the width of the plurality of tooth plates 2 in the plurality of outer tooth groups.

[0087] The sizes of the multiple teeth 2 are reasonably designed, which can not only realize the multi-segment and multi-grain seamless transition grinding of the workpiece, but also save consumables and reduce costs.

[0088] Example 4

[0089] On the basis of any one of embodiments 1 to 3, in this embodiment, the plurality of tooth pieces 2 extend along the axial direction of the working ring body 1, and the end faces of one end thereof are combined to form the end face working surface 8 of the working ring body 1 (refer to Figures 1 to 18 ).

[0090] This solution has a simple structure and a reasonable design. The end surface formed at one end of the plurality of tooth pieces 2 is used as the end surface working surface to facilitate grinding of workpieces and facilitate processing.

[0091] Example 5

[0092] On the basis of any one of embodiments 1 to 3, in this embodiment, the plurality of tooth pieces 2 extend radially along the working ring body 1, and the end faces of one end thereof are combined to form the circumferential working surface 9 of the working ring body 1 (refer to Figures 19 to 23 ).

[0093] This solution has a simple structure and a reasonable design. The end surface formed by one end of the plurality of tooth plates 2 is used as a circumferential working surface to facilitate grinding of workpieces and facilitate processing.

[0094] The above-mentioned embodiment 4 and embodiment 5 are parallel schemes. The end surface of the working ring in embodiment 4 is the working surface, and the circumferential surface of the working ring in embodiment 5 is the working surface.

[0095] Example 6

[0096] On the basis of Example 4 or Example 5, in this embodiment, a plurality of non-working layers are respectively provided with micro grooves 10 at one end corresponding to the working surface of the working ring body 1 .

[0097] The scheme has a simple structure and reasonable design. The micro-grooves in the non-working layer are conducive to mechanical crushing, reducing load and increasing the life of the grinding wheel.

[0098] Example 7

[0099] On the basis of the above embodiments, in this embodiment, the plated surfaces on the plurality of tooth pieces 2 are respectively in the form of a planar tooth piece structure or a wavy tooth piece structure.

[0100] The wavy-shaped tooth piece is beneficial to increasing the rigidity and strength of the tooth piece base, thereby reducing the thickness of the tooth piece base, which is beneficial to improving the self-sharpening property of the grinding wheel; increasing the circumferential width of the wavy-shaped electroplated tooth piece can reduce the number of teeth, simplify the assembly structure and reduce the assembly cost; the shape of the tooth piece is reasonably designed, which is convenient for grinding workpieces and easy to process.

[0101] Example 8

[0102] On the basis of the above embodiments, in this embodiment, the lower ends of the inner sides of the plurality of tooth pieces 2 are respectively fixedly connected with a fixing portion 11 .

[0103] The structure of the tooth piece 2 is reasonably set up, and the solidification part is used to facilitate the assembly of the tooth piece 2, which is convenient for assembly.

[0104] Based on the above solution, when the tooth piece is fixed, the tooth piece base forms a backing structure relative to the diamond particles. This is beneficial to reduce the shedding of diamonds, improve the ability to hold diamond particles, and increase the service life of the grinding wheel.

[0105] Example 9

[0106] On the basis of the above embodiments, in this embodiment, the width and / or

[0107] The widths of the plurality of non-working layers 7 may be consistent or inconsistent.

[0108] This solution can adjust the concentration of the working layer and the orderly arrangement of diamonds by setting the width; the dimensions of the working layer 6 and the non-working layer 7 are set reasonably, which can achieve better sharpness of the teeth while also adjusting the wear resistance of different positions to achieve shape preservation and anti-deformation functions, and is conducive to chip removal and cooling.

[0109] Example 10

[0110] On the basis of the above embodiments, this embodiment also provides a composite grinding wheel, including a grinding wheel base 12 and a pressure plate 13, and also includes the diamond grinding working ring as described above, wherein the working ring body 1 is installed on one side of the grinding wheel base 12; the pressure plate 13 is located on the side of the working ring body 1 away from the grinding wheel base 12, and presses the working ring body 1 tightly.

[0111] Preferably, in this embodiment, the above-mentioned pressure plate 13 is preferably a circular plate-like structure, and a plurality of blades 14 are fixedly installed on its circumference at uniform intervals along its circumference. The plurality of blades 14 rotate with the grinding wheel, which can help the cooling medium to flow through the cooling channel to the grinding area (i.e., the area where the grinding wheel and the workpiece are in contact), thereby realizing an internal cooling mode; at the same time, the setting of the blades 14 is conducive to improving the fluidity of the cooling medium, increasing the flow rate of the cooling medium through the cooling channel, and improving the cooling effect.

[0112] In addition, the grinding wheel base, pressure plate and positioning parts are all stamped parts or precision die-cast parts, among which the multiple blades on the pressure plate are completed by stamping or die-casting. The manufacturing cost is low, the precision is high, and the interchangeability is good.

[0113] This embodiment also provides a composite grinding wheel, in which the diamond abrasive grains have good working environment conditions, a functional microstructure that grinds, cools and discharges immediately, eliminates the phenomenon of powder chip blockage, is suitable for finer diamond abrasive grains, has good grinding effect, long life and low cost.

[0114] Under certain conditions, this invention can be suitable for dry grinding of heat-sensitive workpieces that are difficult to achieve with liquid cooling. Specifically, it utilizes a copper or copper alloy substrate with high thermal conductivity and electroplated copper, or a multi-layer composite of copper and nickel. (The use of a highly thermally conductive substrate and plating facilitates the dissipation of grinding heat.)

[0115] In addition, the present invention is also applicable to dry grinding of non-metallic brittle and hard materials that are not suitable for liquid cooling, such as ceramics and graphite. (Dry grinding can eliminate the water circulation system and drying equipment, reducing processing costs).

[0116] The beneficial effects of the present invention are as follows:

[0117] Compared with powder metallurgy products, material costs are greatly reduced;

[0118] The equipment required for the production of electroplated gears is simple, the area of ​​the electroplated gears is small, and it is suitable for large-scale electroplating production with low fixed asset investment;

[0119] The structure of the present invention eliminates the phenomenon of powder blockage;

[0120] The micro-grooves can achieve large-scale mechanical crushing with low processing load;

[0121] Toothed grinding wheel working ring realizes intermittent grinding and high sharpness;

[0122] Diamond abrasive grains have good working environment conditions and have a functional microstructure that can be ground, cooled and discharged immediately;

[0123] The setting of the blades is conducive to improving the fluidity of the cooling medium, increasing the flow of the cooling medium through the cooling channel, realizing the internal cooling mode, improving the cooling effect, and also facilitating rapid chip removal;

[0124] Most components of the grinding wheel are processed by stamping or die-casting, which is simple to manufacture, high precision, good interchangeability and low cost;

[0125] Grinding wheel assembly is suitable for automated production lines to achieve low-cost large-scale production of grinding wheels;

[0126] The workpiece processing quality is stable, and it is also suitable for brazing process, chemical plating process of gear pieces, and also suitable for dry grinding of water-sensitive materials (such as graphite, ceramics, etc.).

[0127] The composite grinding wheel can effectively reduce the number of grinding wheels in multi-head continuous grinding equipment, saving energy and reducing consumption.

[0128] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0129] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0130] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A diamond grinding working ring, characterized by: The invention comprises an annular working ring body (1), wherein the working ring body (1) is composed of a plurality of tooth plates (2) distributed at uniform intervals, and a through cooling channel (3) is formed between two adjacent tooth plates (2); a plurality of plating layers (4) are provided on one side surface of the plurality of tooth plates (2), and a plurality of diamonds (5) are provided in the plurality of plating layers (4); the plurality of plating layers (4) and the plurality of diamonds (5) therein respectively form a plurality of working layers (6), and the plurality of diamonds (5) are respectively provided in a single layer, and the area between two adjacent working layers (6) is a non-working layer (7); The thickness h of each of the coating layers (4) and the width B of the working layer (6) The width δ of the non-working layer (7) and the particle size b of each diamond (5) satisfy the following relationship: 0.5×b≤δ<2×b; b≤h<1.5×b; b≤B<3×b; Wherein, the thickness h (nm) of each of the coating layers (4) and the working layer (6), the width B (cmm), the particle size b (nm) of each diamond (5), and the width δ (cmm) of the non-working layer (7).

2. The diamond grinding working ring according to claim 1, characterized in that: The plurality of tooth pieces (2) are divided into an inner tooth group and an outer tooth group, wherein the plurality of tooth pieces (2) in the inner tooth group are evenly spaced in the circumferential direction; and the plurality of tooth pieces (2) in the outer tooth group are evenly spaced in the circumferential direction and are located outside the inner tooth group.

3. The diamond grinding working ring according to claim 2, characterized in that: The width of the plurality of tooth plates (2) in the plurality of inner tooth groups is greater than, equal to, or smaller than the width of the plurality of tooth plates (2) in the plurality of outer tooth groups.

4. The diamond grinding working ring according to claim 1, characterized in that: The plurality of tooth pieces (2) extend respectively along the axial direction of the working ring body (1), and the end faces of one end thereof are combined to form an end face working surface (8) of the working ring body (1).

5. The diamond grinding working ring according to claim 1, characterized in that: The plurality of tooth pieces (2) extend respectively along the radial direction of the working ring body (1), and the end faces at one end thereof are combined to form a circumferential working surface (9) of the working ring body (1).

6. The diamond grinding working ring according to claim 4 or 5, characterized in that: A plurality of the non-working layers (7) are respectively provided with microgrooves (10) at one end corresponding to the working surface of the working ring body (1).

7. The diamond grinding working ring according to any one of claims 1 to 5, characterized in that: The plated surfaces on the plurality of tooth pieces (2) are respectively in the form of a planar tooth piece structure or a wavy tooth piece structure.

8. The diamond grinding working ring according to any one of claims 1 to 5, characterized in that: The lower ends of the inner sides of the plurality of tooth pieces (2) are respectively fixedly connected with a fixing portion (11).

9. The diamond grinding working ring according to any one of claims 1 to 5, characterized in that: The widths of the plurality of working layers (6) and / or the widths of the plurality of non-working layers (7) are consistent or inconsistent.

10. A composite grinding wheel comprising a grinding wheel base (12) and a pressure plate (13), characterized in that: It also includes a diamond grinding working ring as described in any one of claims 1 to 9, wherein the working ring body (1) is installed on one side of the grinding wheel base (12); the pressure plate (13) is located on the side of the working ring body (1) away from the grinding wheel base (12) and presses the working ring body (1).

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