CN108188945B - Slice tooth split type diamond grinding wheel and manufacturing method - Google Patents
Slice tooth split type diamond grinding wheel and manufacturing method Download PDFInfo
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- CN108188945B CN108188945B CN201810201963.6A CN201810201963A CN108188945B CN 108188945 B CN108188945 B CN 108188945B CN 201810201963 A CN201810201963 A CN 201810201963A CN 108188945 B CN108188945 B CN 108188945B
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- 238000000227 grinding Methods 0.000 title claims abstract description 158
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 90
- 239000010432 diamond Substances 0.000 title claims abstract description 90
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 62
- 238000003754 machining Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 241000446313 Lamella Species 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 14
- 238000012545 processing Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 12
- 239000000428 dust Substances 0.000 description 8
- 239000002131 composite material Substances 0.000 description 7
- 238000004663 powder metallurgy Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with cooling provisions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/009—Tools not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention relates to a slice tooth split type diamond grinding wheel and a manufacturing method thereof, wherein the slice tooth split type diamond grinding wheel comprises a base body with an annular structure, a plurality of slice teeth and a pressing plate, wherein the slice teeth are radially spliced to form the annular structure along the base body on the base body, and a groove body is formed between the upper parts of two adjacent slice teeth; the pressing plate is of an annular structure, is connected with the base body through bolts and presses the plurality of thin sheet teeth. Compared with the prior art, the narrower and more the tank body is, the better the cooling effect is and the good chip removal effect is; meanwhile, the technical scheme of the application is low in processing difficulty and convenient for mass production.
Description
Technical Field
The invention relates to the technical field of metal bond diamond grinding, in particular to a slice tooth split type diamond grinding wheel and a manufacturing method thereof.
Background
The metal bond diamond grinding wheel is generally manufactured by adopting a powder metallurgy sintering process.
In order to improve the sharpness of the diamond grinding wheel during processing, the chip capacity, chip removal and cooling capacity of the diamond grinding wheel in the working process need to be improved, the tooth-shaped grinding wheel with a groove body is adopted, the intermittent (impact) grinding function is utilized to improve the grinding efficiency, a groove body structure which is beneficial to chip removal (chip capacity) and water supply (water supply) is arranged on a working layer of the diamond, and the tooth-shaped diamond grinding wheel with the groove body is manufactured by one-step molding in a mode preset by a die.
In the powder metallurgy process, hot press sintering molding is required by a die, so that the thermal strength requirement of the die is high. The trough body is usually made of graphite mold, cast iron mold, alloy mold and other material, and the water gap block is pre-set inside the mold, hot pressed and sintered, and the water gap block is disassembled (pulled out) for forming.
The common metal or alloy nozzle block is not easy to deform and break when the mold is disassembled (pulled). Graphite nozzle block, fragile. In order to meet the strength requirement, the nozzle block needs to have enough physical sectional area in all directions, especially on the main bearing surface. Thus, the volume of the nozzle block must be large, resulting in a large gap between the diamond teeth (i.e., a large width of the groove), which is advantageous for cooling the material being machined, but has very limited cooling effect on the diamond working layer. In intermittent grinding, the grinding wheel is large in impact force and large in runout, so that the surface roughness of a workpiece is increased.
Under the condition that the geometric dimension of the grinding wheel is restrained, the larger the volume occupied by the groove body is, the larger the number is, and the smaller the volume of the diamond working layer is. Therefore, when the volume of the nozzle block is limited by the manufacturing process conditions such as strength and the like and cannot be excessively small, the number of grooves provided is objectively limited in order to ensure that the diamond working layer has a sufficient volume (i.e., ensure a sufficient life). Limiting the number of grooves and further limiting the thickness of the diamond working teeth without space in the circumferential direction. Thus, the circumferential chip removing path is long, the accumulated amount of the dust is large, the heating value of the grinding wheel during working is also large, and the situation is more serious when the quick or high-speed feeding processing is performed-! It is generally necessary to increase the particle size of diamond to improve the chip holding space and alleviate the above situation, but the increase in particle size is disadvantageous for the reduction of the surface roughness of the workpiece.
The wider and smaller the groove body, the smaller the outer surface area (including the grinding surface and the non-grinding surface) of the grinding wheel working layer entity, namely the smaller the area acted by the cooling water, the poorer the cooling effect.
The diamond grinding wheel is manufactured by adopting a powder metallurgy process, in the high-temperature and high-pressure manufacturing process, the fluidity of metal powder (bonding agent) is poor, if the die structure is too complex, the pressure transmission is affected, and the compactness of the diamond grinding wheel is uneven to generate performance deviation, so that some complex structures cannot be manufactured by adopting the powder metallurgy process. Some special structures, such as thin, sharp, long, thin, net-shaped teeth, etc., cannot meet the technological requirements of the mold material under the hot-pressing condition, so that the mold cannot be finished or cannot be economically manufactured in a preset mold mode.
The diamond grinding wheel product manufactured by the prior art process can realize that the number of the arranged groove bodies is small and the occupied volume of the groove bodies is large through die presetting, and the diamond teeth are simple and thick in shape and very limited in effect. If a post-processing mode is adopted, the processing difficulty is generally high, and the cost is increased.
With the continuous development of technology, high-quality high-speed high-efficiency processing is inevitable, and the prior art products are difficult to adapt.
Disclosure of Invention
The invention aims to provide the slice tooth split type diamond grinding wheel which has the advantages of reliable manufacturing process, simple and practicable structure, feasible function realization, low manufacturing cost, high efficiency, energy conservation and safety and the manufacturing method.
The technical scheme for solving the technical problems is as follows: the slice tooth split type diamond grinding wheel comprises a base body with an annular structure, a plurality of slice teeth and a pressing plate, wherein the slice teeth are radially split and overlapped along the base body to form an annular structure on the base body, and a groove body is formed between the upper parts of two adjacent slice teeth; the pressing plate is of an annular structure, is connected with the base body through bolts and presses the plurality of thin sheet teeth.
Further, the plurality of the sheet teeth includes a plurality of sheet teeth a and a plurality of sheet teeth B, the sheet teeth a are staggered with the plurality of sheet teeth B, and when the sheet teeth a and the sheet teeth B are adjacently combined, the lower portions of the sheet teeth a and the lower portions of the sheet teeth B constitute an interlocking structure.
Further, a limit groove arranged along the inner edge of the base ring is arranged in the base; the lower parts of the plurality of sheet teeth are embedded into the limiting groove, and the upper parts of the plurality of sheet teeth are made of diamond.
Further, the section of the pressing plate, which is close to the end face of the flake teeth, is inclined and is matched and close to the end face of the flake teeth, and a filling body embedded in the pressing plate is arranged at the annular end face of the pressing plate, which is close to the flake teeth.
Further, each of the foil teeth is remote from the end of the base ring, which end is provided on one side with a first projection connected thereto.
Further, a plurality of first ribs are connected to the side wall of each of the plurality of teeth adjacent to the other teeth.
Further, a plurality of second bumps are connected to a side wall of each of the plurality of sheet teeth.
Further, the plurality of sheet teeth comprise a plurality of sheet teeth C and a plurality of sheet teeth D, the plurality of sheet teeth C are continuously spliced and overlapped to form a first abrasive body, the plurality of sheet teeth D are continuously spliced and overlapped to form a second abrasive body, and the plurality of first abrasive bodies and the plurality of second abrasive bodies are spliced into an annular structure in a staggered manner on the substrate; the width of the thin sheet tooth C near one end in the base body is larger than the width of the thin sheet tooth D near the other end in the base body.
Further, an outer ring of an annular structure formed by a plurality of the sheet teeth is closely attached to the edge of the base body; the groove body is positioned between two adjacent sheet teeth; the pressing plate is annularly arranged at the upper end of the base body.
Further, the side wall, close to one end of the base ring, of each sheet tooth is provided with a meshing position, two adjacent sheet teeth are meshed with each other through the meshing position, the lower end face of the pressing plate is inclined downwards from the inner ring to the outer ring of the pressing plate, and a plurality of sheet teeth are limited; and one end of each sheet tooth, which is far away from the base ring, is provided with a grinding structure.
Further, the shape of the groove body is processed according to the grinding structure and the machining allowance of each point in the axial direction of the groove body, so that the circumferential accumulated length of the diamond layer of each point in the axial direction of the groove body and the corresponding machining allowance are in a positive relation.
A manufacturing method of a slice tooth split type diamond grinding wheel comprises the following steps:
s1, manufacturing sheet teeth according to a set structure, so that the ratio of the radial average length to the circumferential average width of the sheet teeth is more than 2.5 times;
s2, the main pressing surface of the flake teeth is vertically related to the grinding working surface; the main pressing surface of the flake teeth is made into a non-grinding working surface, and the main pressing surface is the surface with the largest flake tooth area;
s3, a plurality of sheet teeth are spliced and overlapped between the main pressing surfaces to form an annular structure;
s4, fixedly connecting the plurality of thin sheet teeth to the substrate through the pressing plate and the bolts.
The beneficial effects of the invention are as follows:
1. under the condition that the solid volume of the diamond working layer is not affected, the narrower and the larger the groove body is, the larger the outer surface area (including a grinding surface and a non-grinding surface) of the grinding wheel working layer is, the larger the area acted by cooling water is, and the better the cooling effect is.
2. The more the number of the groove bodies is, the narrower the circumferential width of the diamond teeth is, so that the dust discharge path is short, the dust accumulation amount is small, the friction amount of the metal binding agent on the abrasive body is small, the grinding heat is low, the high-speed feeding processing is facilitated, and the application of the non-high-temperature-resistant formula is facilitated to be expanded.
3. The number of the groove bodies is large, the dust discharge path is short, the dust accumulation amount is small, the required dust containing space is small, the requirement on the exposed height of the diamond is low, and the characteristic is favorable for obtaining better processing quality by adopting relatively finer diamond.
4. The diamond layer is easy to realize through the structural processing of the sheet teeth, the grinding surface is worn out quickly locally to form a circumferential broaching groove, a new groove body is formed on the grinding surface by the broaching groove, and a net-shaped groove body is formed on the grinding surface by the broaching groove and the groove body formed by splicing and stacking, so that the radial discharging path of the powder is shortened, the pressure of the grinding surface during grinding is improved, and the sharpness and the service life of the grinding wheel are further improved.
5. Is favorable for dry grinding.
6. The diamond layer is easy to realize similar orderly arrangement structure, the sharpness and the service life of the grinding wheel are improved, and the diamond layer is more suitable for rough grinding.
7. The double-ring or multi-ring structure function is presented, and the technical effect of the prior art is exerted or exceeded.
8. The sheet tooth-shaped grinding wheel which is difficult to integrally process can be conveniently realized by being decomposed into sheet single teeth and spliced and consolidated.
9. The circumferential arc length of the flake teeth is short, the flake teeth are adapted to splice and stack structures with various diameters, same ring width and same ring height, corresponding molds are not required to be manufactured according to the diameters one by one for production, the feeding difficulty and the processing difficulty of the molds are greatly reduced, and the automatic mass production is facilitated.
Drawings
FIG. 1 is a front view of a wafer-toothed split diamond grinding wheel of the present invention with respect to example 1;
FIG. 2 is a cross-sectional view of a wafer-toothed split diamond grinding wheel according to the invention with respect to example 1;
FIG. 3 is a top view of a wafer-tooth segment diamond grinding wheel of the present invention with respect to the lower arrangement of the plurality of wafer teeth of example 1;
FIG. 4 is a top view of a segment-toothed split diamond grinding wheel according to the invention with respect to segment A of example 1;
FIG. 5 is a top view of a segment-toothed split diamond grinding wheel according to the invention with respect to segment B of example 1;
FIG. 6 is a schematic view of a segment-toothed split diamond grinding wheel according to the present invention with respect to a part of the segment teeth of example 1;
FIG. 7 is a front view of a split diamond grinding wheel with respect to the teeth of example 1 according to the present invention;
FIG. 8 is a front view of a wafer-toothed split diamond grinding wheel according to the invention with respect to example 2;
FIG. 9 is a schematic view showing the structure of a segment-toothed split diamond grinding wheel according to the present invention with respect to a part of the segment teeth in example 2;
FIG. 10 is a front view of a wafer-toothed split diamond grinding wheel of the present invention with respect to example 3;
FIG. 11 is a schematic view showing the structure of a segment-toothed split diamond grinding wheel according to the present invention with respect to a part of the segment teeth in example 3;
FIG. 12 is a front view of a split diamond grinding wheel with respect to the teeth of example 3 according to the present invention;
FIG. 13 is a front view of a wafer-toothed split diamond grinding wheel of the present invention with respect to example 4;
FIG. 14 is a schematic view showing the structure of a segment-toothed split diamond grinding wheel according to the present invention with respect to a part of the segment teeth in example 4;
FIG. 15 is a front view of a split diamond grinding wheel with respect to the teeth of example 4 according to the present invention;
FIG. 16 is a front view of a wafer-toothed split diamond grinding wheel of the present invention with respect to example 5;
FIG. 17 is a front view of a wafer-toothed split diamond grinding wheel according to the invention, with respect to a portion of the first abrasive body and the second abrasive body of example 5;
FIG. 18 is a top view of a segment-toothed split diamond grinding wheel according to the invention, with respect to a portion of the first abrasive body and the second abrasive body of example 5;
FIG. 19 is a front view of a wafer-toothed split diamond grinding wheel of the present invention with respect to example 6;
FIG. 20 is a cross-sectional view of a wafer-toothed split diamond grinding wheel according to the invention with respect to example 6;
FIG. 21 is a schematic view showing the structure of a segment-toothed split diamond grinding wheel according to the present invention with respect to a part of the segment teeth in example 6;
fig. 22 is a front view of a segment-faced diamond grinding wheel of the present invention with respect to the segment of example 6.
In the drawings, the list of components represented by the various numbers is as follows:
1. a base body 2, sheet teeth 3, a pressing plate 4, a groove body 5, a limit groove 6, a filling body 7, a first lug 8, a first convex pattern 9 and a groove, 10, second convex blocks 11, first abrasive bodies 12, second abrasive bodies 13, meshing positions 14, grinding structures 15 and concave pattern structures.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Example 1:
as shown in fig. 1 to 7, the slice tooth split diamond grinding wheel comprises a base body 1 with an annular structure, a plurality of slice teeth 2 and a pressing plate 3, wherein a limit groove 5 arranged along the inner edge of the base body 1 ring is arranged in the base body 1; a plurality of flake teeth 2 are radially spliced and overlapped along the base body 1 to form an annular structure on the base body 1, and the lower parts of the flake teeth 2 are embedded into the limit grooves 5; a groove body 4 is formed between the upper parts of two adjacent sheet teeth 2; the pressing plate 3 is in an annular structure, and the pressing plate 3 is connected with the base body 1 through bolts and presses the plurality of thin sheet teeth 2; the upper portions of the plurality of the sheet teeth 2 are made of diamond.
A plurality of single thin tooth plates 2 are spliced and fixedly combined into an abrasive body, and the abrasive body is in an annular structure.
The tank body 4 is a water tank, a chip removal tank, a gas flow tank or other functional tanks for circulating cooling water; wherein the groove body 4 is radial, axial, inclined, circumferential, grid or compound.
Each surface of the thin tooth sheet 2 can be a plane or a curved surface, and can also be a composite surface with convex patterns or concave patterns, and the convex patterns or the concave patterns are combined; but also a perforated face.
In various embodiments, the embossments and embossments of the sheet tooth surface 2 are provided in a dot, block, line, bar or grid form, and in a combination of dot, block, line, bar and grid forms. The groove body 4 of each embodiment is formed by plain, concave, convex or concave-convex compound patterns on two adjacent thin tooth sheets 2.
Grinding wheel size of this embodiment: the diameter of the grinding wheel is 152 mm, the inner diameter of the grinding wheel is 118 mm, the ring width of the grinding wheel is 17 mm, and the height of the grinding wheel is 20 mm. The height of the chip teeth 2 was 14 mm, wherein the height of the upper portion of the chip teeth 2 was 8 mm and the height of the lower portion of the chip teeth 2 was 6 mm.
The plurality of the flake teeth 2 are 180 teeth, the width of the groove body 4 is 0.5 mm, and the average tooth width of the flake teeth 2 is: ((152 pi-180 x 0.5)/180+ (118 pi-180 x 0.5)/180)/2=1.856 millimeters.
The end face area of the grinding wheel is as follows: 7210 square mm, the area of the tank body 4 is: 1530 mm, the end face of the tank body 4 has the following ratio: 21.2%.
The flake teeth 2 are manufactured by adopting a powder metallurgy process, the feeding direction surface and the main pressing surface are the same as the largest area surface, and as the average thickness of the flake teeth 2 is only 1.856 mm, the simple unidirectional pressing is adopted, the existing die presetting integral manufacturing technology requires bidirectional pressing, the die height is greatly reduced, and the feeding is simple and easy.
As shown in fig. 2 to 7, the shape of the thin sheet teeth 2 is easy to assemble and solidify, the thin sheet teeth 2 are laminated and glued, and the thin sheet teeth 2 are solidified to form an annular structure on the base body 1; after the plurality of sheet teeth 2 are overlapped, a groove body 4 is formed between the upper parts of two adjacent sheet teeth 2, and the width of the groove body 4 is 0.5 millimeter;
the plurality of the sheet teeth 2 comprise a plurality of sheet teeth A and a plurality of sheet teeth B, wherein the sheet teeth A and the plurality of sheet teeth B are arranged in a staggered way, and when the sheet teeth A and the sheet teeth B are adjacently combined, the lower parts of the sheet teeth A and the lower parts of the sheet teeth B form an interlocking structure;
the section of the pressing plate 3, which is close to the end face of the flake teeth 2, is inclined and is matched and close to the end face of the flake teeth 2, a filling body 6 embedded in the pressing plate 3 is arranged at the annular end face of the pressing plate 3, which is close to the flake teeth 2, the filling body 6 has plastic deformation capability, and the filling body 6 is made of aluminum alloy, copper alloy and other materials; the pressing plate 3 is fixedly connected on the base body 1 through glue, and is processed after shaping, sharpening and the like to form a finished product.
Compared with the prior art, the method comprises the following steps:
in the first technical scheme, the existing die presets a good level of the whole manufacturing technology, the average width of the groove body 4 can be controlled to be about 1.5 mm under the condition of economy, the number of teeth is 64 teeth, and then the average tooth width is as follows: ((152 pi-64 x 1.5)/64+ (118 pi-64 x 1.5)/64)/2= 5.127 mm; the area of the end face of the grinding wheel is as follows: 7210 square millimeters, cell body 4 area is: 1632 square millimeters, the end face of the tank body 4 has the following ratio: 22.6%.
In the second prior art, if the number of teeth is increased to 120 teeth in the prior art, the average tooth width is: ((152 pi-120 x 1.5)/120+ (118 pi-120 x 1.5)/120)/2=2.034 mm; the area of the end face of the grinding wheel is as follows: 7210 square mm, the area of the tank body 4 is: 1632 square millimeters, the end face of the tank body 4 has the following ratio: 42.4%. Obviously, in the second prior art, due to the limitation of manufacturing difficulty of the width of the groove body 4, only the number of teeth is increased, the occupied proportion of the groove body 4 is increased, and the physical space of the diamond layer is occupied, so that the service life of the tool is directly influenced.
Comparison and explanation:
ratio of the tooth width of the first prior art to the tooth width of the present embodiment: 5.127/1.856=2.76 times, i.e. the breading discharge path of the first prior art version is equal to 2.76 times the breading discharge path of the present embodiment. The ratio of the number of teeth of the present embodiment to the number of teeth of the first prior art: 180/64=2.81 times, i.e., the tooth circumferential cooling surface area of this embodiment is equal to 2.81 times the tooth circumferential cooling surface area of the first prior art.
Due to the advantages, the graphite particles or other equivalent particles with pore-forming and lubricating effects are not needed to be put into the binding agent of the product, the effective duty ratio of the diamond layer is increased, and the service life can be prolonged by about 10-25% compared with the prior art.
The product of the embodiment is simple and easy in manufacturing process, and has the advantages of quick chip removal, good cooling, easy manufacture and greatly improved performance. As shown in fig. 8, the surface of the thin sheet tooth 2 of the product of the invention is not provided with a local supporting structure, so the product is more suitable for grinding wheels with smaller grinding quantity and low requirement on the strength of the thin sheet tooth 2.
Example 2:
as shown in fig. 8 to 9, in the present embodiment, a wafer-tooth split diamond grinding wheel comprises a base 1 having a ring-shaped structure, a plurality of wafer teeth 2, and a platen 3, wherein a limit groove 5 is provided in the base 1 along the inner edge of the base 1; a plurality of flake teeth 2 are radially spliced and overlapped along the base body 1 to form an annular structure on the base body 1, and the lower parts of the flake teeth 2 are embedded into the limit grooves 5; a groove body 4 is formed between the upper parts of two adjacent sheet teeth 2; the pressing plate 3 is in an annular structure, and the pressing plate 3 is connected with the base body 1 through bolts and presses the plurality of thin sheet teeth 2; the upper parts of the plurality of the thin sheet teeth 2 are made of diamond;
each foil tooth 2 is remote from the end of the ring of base 1, which end is provided on one side with a first lug 7 connected thereto.
Grinding wheel size of this embodiment: the diameter of the grinding wheel is 152 mm, the inner diameter of the grinding wheel is 118 mm, the ring width of the grinding wheel is 17 mm, and the height of the grinding wheel is 20 mm; the radial width of the first protruding block 7 is 2 mm, the protruding height of the first protruding block 7 is 0.5 mm, and the first protruding block 7 has a local supporting function on two adjacent sheet teeth 2; the number of teeth of the flake teeth 2 is 180 teeth, and the width of the groove body 4 is 0.5 millimeter.
The flake teeth 2 are manufactured by adopting a powder metallurgy process, the feeding direction surface is the same as the main pressing surface, and the surface with the largest area is simply pressed in a one-way; the shape of the flake teeth 2 is easy to assemble and solidify, the flake teeth 2 are spliced and glued, and an annular structure is formed on the base body 1 by solidifying; and after being overlapped, the plurality of the flake teeth 2 are fixedly connected to the base body 1, and the finished tool is formed by shaping, sharpening and the like.
Comparison and explanation:
compared with the technical scheme of the embodiment 1, the technical scheme of the embodiment of the invention has the advantages that the first lug 7 forms a local supporting structure for two adjacent thin sheet teeth 2, and is equivalent to a continuous tooth structure, so that the jump and impact caused by intermittent grinding are eliminated, and the local supporting structure is positioned at the outer diameter of the annular structure formed by a plurality of thin sheet teeth 2; when the workpiece is machined, the part of the grinding wheel close to the outer diameter contacts the workpiece, so that the impact strength of the sheet teeth 2 at the outer diameter is greatly enhanced, and the rough grinding and the powerful machining are facilitated.
According to the technical scheme provided by the embodiment of the invention, the groove body 4 is formed when the plurality of thin sheet teeth 2 are spliced to form an internal tooth structure, and cooling water is more likely to stay in the groove body 4, so that a better cooling effect is achieved.
Example 3:
as shown in fig. 10 to 12, in the present embodiment, a wafer-tooth split diamond grinding wheel comprises a base 1 having a ring-shaped structure, a plurality of wafer teeth 2, and a platen 3, wherein a limit groove 5 is provided in the base 1 along the inner edge of the base 1; a plurality of flake teeth 2 are radially spliced and overlapped along the base body 1 to form an annular structure on the base body 1, and the lower parts of the flake teeth 2 are embedded into the limit grooves 5; a groove body 4 is formed between the upper parts of two adjacent sheet teeth 2; the pressing plate 3 is in an annular structure, and the pressing plate 3 is connected with the base body 1 through bolts and presses the plurality of thin sheet teeth 2; the upper parts of the plurality of the thin sheet teeth 2 are made of diamond; a plurality of first ribs 8 are connected to the side wall of each sheet tooth 2 close to the other sheet tooth 2;
grinding wheel size of this embodiment: the diameter of the grinding wheel is 152 mm, the inner diameter of the grinding wheel is 118 mm, the ring width of the grinding wheel is 17 mm, and the height of the grinding wheel is 20 mm; the first convex patterns 8 are vertical triangular patterns, the height of the triangular patterns is 0.6 millimeter, and the distance between the plane formed by the triangular pattern protruding peaks of each sheet tooth 2 and the circumferential plane of the adjacent sheet tooth 2 is 0.3 millimeter; the number of teeth of the flake teeth 2 is 180 teeth, and the narrowest part of the groove body 4 is 0.3 mm.
The annular structure formed by splicing and solidifying a plurality of flake teeth 2 is in an annular structure formed by splicing and solidifying the flake teeth, the total length of the accumulated diamond circumference at the upper part of the flake teeth 2 is uneven and is changed in fluctuation, the shorter the total length of the accumulated diamond circumference is, the more easily worn out the diamond is, each flake tooth 2 forms a groove 9 formed by the rapid wear out at the upper end of the flake teeth 2 on the circumference of each point of the annular structure along the radial direction, and the grooves 9 can drain water and shorten the discharging path of dust in the radial direction; the grooves 9 and the adjacent groove bodies 4 form a net structure, so that the cooling chip removal effect is improved, and once the grooves 9 are formed, the grooves are always present until the diamond layer is consumed.
Comparison and explanation:
compared with the prior art, the net structure formed by the grooves 9 appears through abrasion, so that the influence on the strength of the sheet teeth, which is brought by manufacturing the circumferential groove body through integral molding of the die in the prior art, is avoided, the strength of the sheet teeth 2 is maintained, the heat dissipation capacity of the grinding wheel is greatly improved, and the grinding wheel is more suitable for high-speed processing. The structure has great significance for developing grinding tools without cooling water, and the structure principle is also suitable for the application of grinding blocks on the diamond grinding disc.
Example 4:
as shown in fig. 13 to 15, in the present embodiment, a wafer-tooth split diamond grinding wheel comprises a base 1 having a ring-shaped structure, a plurality of wafer teeth 2, and a platen 3, wherein a limit groove 5 is provided in the base 1 along the inner edge of the base 1; a plurality of flake teeth 2 are radially spliced and overlapped along the base body 1 to form an annular structure on the base body 1, and the lower parts of the flake teeth 2 are embedded into the limit grooves 5; a groove body 4 is formed between the upper parts of two adjacent sheet teeth 2; the pressing plate 3 is in an annular structure, and the pressing plate 3 is connected with the base body 1 through bolts and presses the plurality of thin sheet teeth 2; the upper parts of the plurality of the thin sheet teeth 2 are made of diamond; a plurality of second protrusions 10 are connected to one side wall of each of the sheet teeth 2, and the second protrusions 10 are circular or semicircular.
Grinding wheel size of this embodiment: the diameter of the grinding wheel is 152 mm, the inner diameter of the grinding wheel is 118 mm, the ring width of the grinding wheel is 17 mm, and the height of the grinding wheel is 20 mm; the second projections 10 have a projection height of 0.4 mm and a diameter of 1 mm, and the peaks of the projection heights of the plurality of second projections 10 of the sheet teeth 2 contact the adjacent sheet teeth 2, and the adjacent two sheet teeth 2 are mutually supported by the plurality of second projections 10;
the number of teeth of the flake teeth 2 is 240 teeth, the widest part of the groove body 4 is 0.4 mm, and the average tooth width is: ((152 pi-240 x 0.4)/240+ (118 pi-240 x 0.4)/240)/2=1.367 mm.
The area of the end face of the grinding wheel is as follows: 7210 square mm, the area of the tank body 4 is about: 1632 square millimeters, the grinding wheel end face of the groove body 4 has the following proportion: 22.6%.
Comparing the technical products:
in the first technical scheme, the existing die presets a better level of the whole manufacturing technology, the average width of the groove body 4 can be controlled to be about 1.5 mm under the condition of economy, the number of teeth is 64 teeth, and then the average tooth width is as follows: ((152 pi-64 x 1.5)/64+ (118 pi-64 x 1.5)/64)/2= 5.127 mm; the area of the end face of the grinding wheel is as follows: 7210 square mm, the cell body 4 area is about: 1632 square millimeters, the end face of the tank body 4 has the following ratio: 22.6%.
Ratio of the tooth width of the first prior art to the tooth width of the present embodiment: 5.127/1.367=3.75 times, namely the breading discharging path in the first technical proposal is equal to 3.75 times of the breading discharging path in the embodiment, and the breading discharging path is the groove body 4; the ratio of the number of teeth of the present embodiment to the number of teeth of the first prior art: 240/64=3.75 times, i.e., the tooth circumferential cooling surface area of this embodiment is equal to 3.75 times the tooth circumferential cooling surface area of the first prior art.
The average thinness of the flake teeth 2 of the embodiment is 1.367 mm, the flake teeth 2 are contacted with the plane of the adjacent flake teeth 2 by adopting the second convex blocks 10, so that mutual support is realized, and the rigidity of the grinding wheel is greatly improved; the present embodiment may employ various bumps or grooves, or a composite structure of the two.
Compared with the embodiment 1, the dust removing path of the technical scheme of the embodiment is reduced by 26.4 percent; compared with the embodiment 1, the circumferential cooling surface area of the technical scheme of the embodiment is improved by 33.3 percent through calculation; the grinding wheel diameter is 152 mm, the sheet teeth 2 are 240 teeth, and the width of the groove body 4 is 0.4 mm, which is difficult to finish for the existing integral manufacturing technology. Due to the advantages, the application space and the application field of the fine-particle diamond grinding wheel are greatly expanded.
Example 5:
as shown in fig. 16 to 18, in the present embodiment, a wafer-tooth split diamond grinding wheel comprises a base 1 having a ring-shaped structure, a plurality of wafer teeth 2, and a platen 3, wherein a limit groove 5 is provided in the base 1 along the inner edge of the base 1; a plurality of flake teeth 2 are radially spliced and overlapped along the base body 1 to form an annular structure on the base body 1, and the lower parts of the flake teeth 2 are embedded into the limit grooves 5; a groove body 4 is formed between the upper parts of two adjacent sheet teeth 2; the pressing plate 3 is in an annular structure, and the pressing plate 3 is connected with the base body 1 through bolts and presses the plurality of thin sheet teeth 2; the upper parts of the plurality of the thin sheet teeth 2 are made of diamond;
the plurality of sheet teeth 2 comprise a plurality of sheet teeth C and a plurality of sheet teeth D, the plurality of sheet teeth C are continuously spliced and overlapped to form a first abrasive body 11, the plurality of sheet teeth D are continuously spliced and overlapped to form a second abrasive body 12, and the plurality of first abrasive bodies 11 and the plurality of second abrasive bodies 12 are spliced in a staggered mode to form an annular structure on the base body 1; the width of the sheet tooth C near one end in the base 1 is larger than the width of the other end thereof, and the width of the sheet tooth D near one end in the base 1 is smaller than the width of the other end thereof.
Grinding wheel size of this embodiment: the diameter of the grinding wheel is 152 mm, the inner diameter of the grinding wheel is 118 mm, the ring width of the grinding wheel is 17 mm, and the height of the grinding wheel is 20 mm.
The number of teeth of the flake teeth 2 is 180 teeth, the widest part of the groove body 4 is 1 mm, and the narrowest part is 0.5 mm; 5 sheet teeth C are continuously spliced and overlapped to form a first abrasive body 11, 5 sheet teeth D are continuously spliced and overlapped to form a second abrasive body 12, and 18 first abrasive bodies 11 and 18 second abrasive bodies 12 are spliced and overlapped in a staggered mode to form an annular structure on the base body 1.
Comparing the technical products:
according to the technical scheme, a plurality of sheet teeth C are continuously spliced to form a first abrasive body 11, a plurality of sheet teeth D are continuously spliced to form a second abrasive body 12, a plurality of first abrasive bodies 11 and a plurality of second abrasive bodies 12 are spliced into an annular structure in a staggered manner on a base body 1 to form a composite grinding ring, and a dominant or recessive double-ring or multiple-ring structure is realized.
The shapes of the grinding surfaces of the first abrasive body 11 and the second abrasive body 12 are different, the areas of the inner ring part and the outer ring part of each section of the formed composite grinding ring are different, and the pressure intensity and the abrasion of each first abrasive body 11 or each second abrasive body 12 are different when in operation, so that the grinding surfaces of the composite grinding ring have dominant shape height differences; if different binding agents are adopted for the flake teeth C and the flake teeth D, the inner ring part and the outer ring part of each section of the composite grinding ring are stressed differently during grinding due to different performances, and the grinding surface of the composite grinding ring is subjected to hidden stress intensity differences; the height difference and the strength difference form radial and axial frequency vibration grinding, and the double-ring or multi-ring structure function is presented, so that the technical effect of the prior art is exerted or exceeded.
Example 6:
as shown in fig. 19 to 22, in the present embodiment, a laminated tooth split diamond grinding wheel comprises a base 1 having a ring-shaped structure, a plurality of laminated teeth 2 and a pressing plate 3, wherein the laminated teeth 2 are laminated along the base 1 to form a ring-shaped structure on the base 1, and an outer ring of the ring-shaped structure is tightly attached to the edge of the base 1; the middle parts between two adjacent thin sheet teeth 2 form a groove body 4, the shape of the groove body 4 is processed according to the grinding structure 14 and the machining allowance of each point in the axial direction of the groove body 4, so that the circumferential accumulated length of the diamond layer of each point in the axial direction of the groove body 4 and the corresponding machining allowance form a positive relation, and the grinding structure 14 resists deformation; the pressing plate 3 is annularly arranged at the upper end of the base body 1, and the pressing plate 3 is connected with the base body 1 through bolts and presses the plurality of thin sheet teeth 2.
Grinding wheel size of this embodiment: the diameter of the grinding wheel is 150 mm, the diamond ring width of the grinding wheel is 10 mm, the opening of the grinding wheel is 12 mm, the grinding wheel is suitable for processing a workpiece by 10 mm, and the height of the grinding wheel is 23 mm.
The narrowest point of the groove body 4 is 0.2 mm when the grinding wheel is in contact with the workpiece.
The number of teeth of the grinding wheel is 276 teeth, and the average circumferential working width of the teeth is as follows: ((150pi-276.2)/276+ (130pi-276.2)/276)/2=1.394 mm.
The sheet teeth 2 are manufactured by adopting a powder metallurgy process, the feeding direction surface is the same as the main pressing surface, and the average thickness of the sheet teeth 2 is only 1.394 mm, so that the sheet teeth are manufactured by adopting simple unidirectional pressing, the existing die presetting integral manufacturing technology requires bidirectional pressing, the die height is greatly reduced, and the feeding is simple and easy. The shape of the flake teeth 2 is easy to assemble and solidify, after a plurality of flake teeth 2 are spliced and overlapped, the middle parts between two adjacent flake teeth 2 form a groove body 4, and when workpieces are contacted, the narrowest part of the groove body 4 is 0.2 mm. The sheet teeth 2 are provided with engagement positions 13 on the side wall close to one end in the ring of the base body 1, two adjacent sheet teeth 2 are engaged with each other through the engagement positions 13, the lower end face of the pressing plate 3 is inclined downwards from the inner ring to the outer ring of the pressing plate 3, a plurality of sheet teeth 2 are limited, and a plurality of sheet teeth 2 are prevented from flying out in the grinding process. The filler 6 is used as an auxiliary material, an adhesive, or the like to fix the plurality of sheet teeth 2 to the base 1, and the sheet teeth are shaped, sharpened, or the like to form a finished tool.
The end of each flake tooth 2 far away from the ring of the matrix 1 is provided with a grinding structure 14, when the workpiece to be ground is concave, the end face of each flake tooth 2 close to the other flake tooth 2 is in a convex pattern structure, when the workpiece to be ground is convex, the end face of each flake tooth 2 close to the other flake tooth 2 is in a concave pattern structure 15, and the grinding structure 14 can be concave patterns, convex patterns or concave-convex compound patterns.
Compared with the prior art, the product comprises:
the technical scheme of the embodiment is simple and easy in manufacturing process, realizes integral presetting of the thin sheet teeth 2 which are difficult to manufacture, realizes a narrow tooth structure which greatly shortens the powder chip discharging path, realizes a groove body 4 which is rapidly refrigerated, and greatly improves the performance of grinding wheel products.
A manufacturing method of a slice tooth split type diamond grinding wheel comprises the following steps:
s1, manufacturing the flake teeth 2 according to a set structure, so that the ratio of the radial average length to the circumferential average width of the flake teeth 2 is more than 2.5 times;
s2, the main pressing surface of the flake teeth 2 is in vertical relation with the grinding working surface; the main pressing surface of the flake teeth is made into a non-grinding working surface, and the main pressing surface is the surface with the largest flake tooth area;
s3, a plurality of thin sheet teeth 2 are spliced and overlapped between the main pressing surfaces to form an annular structure;
s4, fixedly connecting the plurality of thin sheet teeth 2 to the base body 1 through the pressing plate 3 and bolts.
According to the scheme, graphite particles (or equivalent particles) with pore-forming and lubricating effects are not required to be added; the thin sheet teeth 2 with the same specification are matched and overlapped with various diameter structures, and corresponding molds are not required to be manufactured according to the diameters one by one for production.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (11)
1. A wafer-tooth split diamond grinding wheel, characterized in that: the device comprises a base body (1) with an annular structure, a plurality of thin sheet teeth (2) and a pressing plate (3), wherein the thin sheet teeth (2) are radially overlapped along the base body (1) to form an annular structure on the base body (1), and a groove body (4) is formed between the upper parts of two adjacent thin sheet teeth (2); the pressing plate (3) is of an annular structure, and the pressing plate (3) is connected with the base body (1) through bolts and presses the plurality of thin sheet teeth (2).
2. A wafer-tooth-split diamond grinding wheel according to claim 1, wherein: the plurality of the sheet teeth (2) comprises a plurality of sheet teeth A and a plurality of sheet teeth B, wherein the sheet teeth A and the plurality of sheet teeth B are arranged in a staggered way, and when the sheet teeth A and the sheet teeth B are adjacently combined, the lower parts of the sheet teeth A and the lower parts of the sheet teeth B form an interlocking structure.
3. A wafer-tooth-split diamond grinding wheel according to claim 1, wherein: a limit groove (5) which is arranged along the inner edge of the base body (1) is arranged in the base body (1); the lower parts of the plurality of sheet teeth (2) are embedded into the limit groove (5), and the upper parts of the plurality of sheet teeth (2) are made of diamond.
4. A wafer-tooth-split diamond grinding wheel according to claim 1, wherein: the section of the pressing plate (3) close to the end face of the flake tooth (2) is inclined and is matched and close to the end face of the flake tooth (2), and a filling body (6) embedded in the pressing plate (3) is arranged at the annular end face of the pressing plate (3) close to the flake tooth (2).
5. A split-wafer diamond grinding wheel according to any one of claims 1 to 4, wherein: each lamella tooth (2) is remote from the end in the ring of the base body (1), which end is provided on one side with a first lug (7) connected thereto.
6. A split-wafer diamond grinding wheel according to any one of claims 1 to 4, wherein: a plurality of first ribs (8) are connected to the side wall of each sheet tooth (2) close to the other sheet tooth (2).
7. A split-wafer diamond grinding wheel according to any one of claims 1 to 3, wherein: a plurality of second protruding blocks (10) are connected to one side wall of each sheet tooth (2).
8. A split-wafer diamond grinding wheel according to any one of claims 1, 3 or 4, wherein: the plurality of sheet teeth (2) comprise a plurality of sheet teeth C and a plurality of sheet teeth D, the plurality of sheet teeth C are continuously spliced and overlapped to form a first abrasive body (11), the plurality of sheet teeth D are continuously spliced and overlapped to form a second abrasive body (12), and the plurality of first abrasive bodies (11) and the plurality of second abrasive bodies (12) are spliced into an annular structure in a staggered manner on the base body (1); the width of the thin sheet tooth C near one end in the base body (1) is larger than the width of the thin sheet tooth D near the other end, and the width of the thin sheet tooth D near one end in the base body (1) is smaller than the width of the thin sheet tooth D near the other end.
9. A wafer-tooth-split diamond grinding wheel according to claim 1, wherein: an outer ring of an annular structure formed by a plurality of sheet teeth (2) is tightly attached to the edge of the base body (1); the pressing plate (3) is annularly arranged at the upper end of the base body (1);
the side wall, close to one end in the ring, of the base body (1) of each sheet tooth (2) is provided with a meshing position (13), two adjacent sheet teeth (2) are meshed with each other through the meshing position (13), the lower end face of the pressing plate (3) is inclined downwards from the inner ring to the outer ring of the pressing plate (3), and the plurality of sheet teeth (2) are limited; one end of each thin sheet tooth (2) far away from the ring of the matrix (1) is provided with a grinding structure (14).
10. A wafer-tooth-split diamond grinding wheel according to claim 9, wherein: the shape of the groove body (4) is processed according to the grinding structure (14) and machining allowance of each point in the axial direction of the groove body (4), so that the circumferential accumulated length of the diamond layer of each point in the axial direction of the groove body (4) and the corresponding machining allowance are in a positive relation.
11. The manufacturing method of the slice tooth split type diamond grinding wheel is characterized by comprising the following steps of:
s1, manufacturing the thin sheet teeth (2) according to a set structure, so that the ratio of the radial average length to the circumferential average width of the thin sheet teeth (2) is more than 2.5 times;
s2, the main pressing surface of the flake teeth (2) is in vertical relation with the grinding working surface; the main pressing surface of the flake teeth is made into a non-grinding working surface, and the main pressing surface is the surface with the largest flake tooth area;
s3, a plurality of sheet teeth (2) are spliced and stacked between the main pressing surfaces to form an annular structure;
s4, fixedly connecting the plurality of thin sheet teeth (2) to the substrate (1) through the pressing plate (3) and bolts.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201963.6A CN108188945B (en) | 2018-03-12 | 2018-03-12 | Slice tooth split type diamond grinding wheel and manufacturing method |
| KR1020207026595A KR102396879B1 (en) | 2018-03-12 | 2019-03-12 | Abrasive Tools and Manufacturing Methods |
| US16/979,853 US20210370472A1 (en) | 2018-03-12 | 2019-03-12 | Abrasive tool and fabrication method therefor |
| JP2020570622A JP7105507B2 (en) | 2018-03-12 | 2019-03-12 | Abrasive tool and its manufacturing method |
| PCT/CN2019/077871 WO2019174581A1 (en) | 2018-03-12 | 2019-03-12 | Polishing device and manufacturing method |
| EP19767677.8A EP3766637B1 (en) | 2018-03-12 | 2019-03-12 | Abrasive tool and fabrication method therefor |
| EP19767319.7A EP3766636A4 (en) | 2018-03-12 | 2019-03-12 | Polishing device and manufacturing method |
| PCT/CN2019/077870 WO2019174580A1 (en) | 2018-03-12 | 2019-03-12 | Abrasive tool and fabrication method therefor |
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| CN201810201963.6A CN108188945B (en) | 2018-03-12 | 2018-03-12 | Slice tooth split type diamond grinding wheel and manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3766637B1 (en) * | 2018-03-12 | 2024-04-17 | Guilin Champion Union Diamond Co., Ltd. | Abrasive tool and fabrication method therefor |
| CN109202756B (en) * | 2018-11-15 | 2024-04-02 | 珠海市世创金刚石工具制造有限公司 | Staggered tooth diamond grinding wheel |
| CN109940467B (en) * | 2019-03-12 | 2023-12-08 | 桂林创源金刚石有限公司 | Polishing device and manufacturing method |
| CN212095976U (en) * | 2020-03-30 | 2020-12-08 | 桂林创源金刚石有限公司 | High-rotation-speed cup-shaped grinding wheel |
| CN110919554B (en) * | 2019-12-19 | 2024-04-16 | 宋京新 | Combined multifunctional electroplating grinding wheel |
| EP4082719A4 (en) * | 2019-12-27 | 2024-01-24 | Guilin Champion Union Diamond Co., Ltd. | Spliced chamfering device |
| CN111113286B (en) * | 2020-01-13 | 2024-07-30 | 宋京新 | Split cup-shaped grinding wheel for electroplated steel wire teeth |
| CN111113285B (en) * | 2020-01-13 | 2024-07-23 | 宋京新 | Split type peripheral grinding wheel for electroplated steel wire teeth |
| CN112706085B (en) * | 2020-12-24 | 2022-03-18 | 湖南三安半导体有限责任公司 | Thinned grinding wheel and assembly thereof, thinned silicon carbide substrate, thinning method and application |
| CN113370087A (en) * | 2021-06-28 | 2021-09-10 | 江苏亚达工具有限公司 | High-stability diamond grinding wheel |
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Denomination of invention: A thin tooth assembled diamond grinding wheel and its manufacturing method Granted publication date: 20230801 Pledgee: Bank of China Limited by Share Ltd. Guilin branch Pledgor: GUILIN CHAMPION UNION DIAMOND Co.,Ltd. Registration number: Y2024980000744 |