CN110653728B - Grinding wheel with groove structure and preparation method - Google Patents
Grinding wheel with groove structure and preparation method Download PDFInfo
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- CN110653728B CN110653728B CN201910988969.7A CN201910988969A CN110653728B CN 110653728 B CN110653728 B CN 110653728B CN 201910988969 A CN201910988969 A CN 201910988969A CN 110653728 B CN110653728 B CN 110653728B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
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- 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
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
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- 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
- B24D18/0054—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by impressing abrasive powder in a matrix
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- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention provides a grinding wheel with a groove structure, which comprises: the grinding wheel comprises a grinding wheel base body (1), a metal material sheet (2) and an abrasive binding agent mixture (3); the metal material thin plate (2) is connected with the grinding wheel base body (1); abrasive bonding agent mixtures (3) are filled between the metal material thin plates (2); the grinding wheel base body (1) has conductivity; the sheet metal material (2) can be gradually removed during the electrolytic machining process, so as to form grooves, the depth of which is controlled by the electrolytic machining. The invention has low preparation cost and is convenient for realizing industrial production. When the grinding wheel is used for grinding, the grinding force can be reduced, and the cooling liquid enters the groove structure, so that the heat dissipation capacity can be enhanced; meanwhile, the grinding heat can be conducted out by the grinding wheel base body (1) and the metal material sheet (2), and the temperature of a grinding area is reduced.
Description
Technical Field
The invention relates to the field of grinding, in particular to a grinding wheel with a groove structure and a preparation method thereof.
Background
Grinding is a processing method for removing materials by using an abrasive, and has a very important position in the field of mechanical processing. The grinding machining is mainly used for finish machining, workpiece materials are removed in a micro-scale mode, and good dimensional accuracy and surface accuracy are obtained; the grinding process can also carry out heavy-load grinding, and quickly and massively remove workpiece materials. The grinding wheel is a grinding tool and consists of various grinding materials, various bonding agent materials and components. Common grinding wheel abrasives used in general are alumina or silicon carbide, while the abrasive of superabrasive grinding wheels is diamond or cubic boron nitride. The surface quality of the workpiece subjected to grinding is closely related to that of the grinding wheel. Due to plowing, scratching and cutting effects of grinding, the grinding force is large, and a large amount of heat can be generated in the grinding process. Because the material removal volume is little in the grinding process, the heat that the smear metal can take away is few, and most grinding heat is introduced into the work piece, can cause the work piece burn when serious, forms residual stress on the work piece surface, probably causes adverse effect. In the grinding process, cooling liquid needs to be introduced to reduce the grinding temperature, and the temperature of a workpiece grinding area is difficult to be effectively reduced by a conventional cooling mode.
The surface structured grinding wheel grinding technology adopts a grinding wheel with a regularly-arranged abrasive particle or groove structure to improve the grinding processing technology performance. Research shows that the grinding force can be effectively reduced by adopting the groove structured grinding wheel for grinding, the heat dissipation capacity of the cooling liquid can be enhanced by the groove structure, and grinding burn can be effectively inhibited. The reasonably distributed groove structure can improve the residual stress on the surface of the workpiece and improve the service performance of the workpiece. At present, a groove structure is processed on the grinding surface of a grinding wheel mainly by adopting a laser removal mode, and then the grinding wheel after finishing is used for grinding. Conventionally, a diamond grinding wheel with a microstructure and a preparation method thereof are disclosed in patent document CN201811360379.1, but in industrial production, the preparation of the groove structured grinding wheel is costly and inefficient.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a grinding wheel with a groove structure and a preparation method thereof.
According to the invention, the grinding wheel with the groove structure comprises: the grinding wheel comprises a grinding wheel base body 1, a metal material sheet 2 and an abrasive binding agent mixture 3;
the metal material sheet 2 is connected with the grinding wheel base body 1;
the abrasive bonding agent mixture 3 is filled between the metal material sheets 2;
the grinding wheel base body 1 has conductivity;
the abrasive bond mixture 3 is not conductive and cannot be removed by electrolytic machining;
the sheet of metal material 2 can be gradually removed during the electrolytic machining process, so as to form grooves, the depth of which is controlled by the electrolytic machining.
Preferably, the metal material sheet 2 forms an annular array structure with the grinding wheel base 1 as the center.
Preferably, the array structure of the sheet of metal material 2 corresponds to the array structure of the grooves.
Preferably, the width of the groove corresponds to the thickness of the sheet of metal material 2.
Preferably, the grooves are in a parallel groove structure, or in an inclined groove structure, or in a V-shaped groove structure, or in a crossed groove structure.
Preferably, the grooves and the sheet metal material 2 comprise the following combined conditions:
when the groove structure is a parallel groove structure, the metal material sheet 2 is a plane sheet, and the metal material sheet 2 is placed in parallel to the axis of the grinding wheel base body 1;
when the groove structure is an inclined groove structure, the metal material sheet 2 is a plane sheet, and an inclined angle exists between the metal material sheet 2 and the axis of the grinding wheel base body 1;
when the groove structure is a V-shaped groove structure, the metal material thin plates 2 are V-shaped thin plates, and a plurality of sawtooth line structures which are separated by preset distances are formed among the V-shaped thin plates;
when the groove structure is a cross groove structure, the metal material thin plate 2 is a V-shaped thin plate, and the V-shaped thin plates contact with each other to form a grid structure.
Preferably, the abrasive bond mixture 3 comprises a grinding wheel structure strengthening area close to the grinding wheel base 1 and a grinding wheel effective grinding area far away from the grinding wheel base 1;
in the structure strengthening area of the grinding wheel, the width of the abrasive material and bonding agent mixture 3 is larger than that of the metal material sheet 2;
in the effective grinding area of the grinding wheel, the width of the abrasive bonding agent mixture 3 is the same as that of the metal material sheet 2, and the abrasive bonding agent mixture is divided into a plurality of small areas connected with the structure strengthening area of the grinding wheel by the metal material sheet 2.
Preferably, the abrasive bond mixture 3 comprises a grinding wheel structure strengthening area close to the grinding wheel base 1 and a grinding wheel effective grinding area far away from the grinding wheel base 1;
the axial width of the grinding wheel structure strengthening area is greater than that of the effective grinding area of the grinding wheel, and the widths of the metal material sheets 2 in the grinding wheel structure strengthening area and the effective grinding area are consistent;
the abrasive and bonding agent mixture 3 in the effective grinding area of the grinding wheel is divided into a plurality of small areas connected with the structure strengthening area of the grinding wheel by the metal material sheet 2.
The invention provides a preparation method of a grinding wheel with a groove structure, which comprises the following steps:
step 1: connecting a metal material sheet 2 with a grinding wheel matrix 1;
step 2: placing the metal material thin plates 2 and the grinding wheel base body 1 in a grinding wheel die 5 and filling the grinding material and bonding agent mixture 3, so that the grinding material and bonding agent mixture 3 is filled between the metal material thin plates 2;
and step 3: carrying out grinding wheel solidification, and separating the grinding wheel from the grinding wheel mold 5 after the grinding wheel is solidified;
and 4, step 4: and performing electrolytic machining on the grinding wheel to form a groove.
According to the use method of the grinding wheel with the groove structure, provided by the invention, when the groove depth of the grinding wheel is smaller than a preset value, the metal material sheet 2 is gradually removed through electrolytic machining, so that the groove depth is correspondingly deepened.
Compared with the prior art, the invention has the following beneficial effects:
1. the metal material thin plate is subjected to electrolytic machining, a groove structure is formed after electrolytic machining, the shape of the groove structure is determined by the metal material thin plate, after the grinding wheel is worn, electrolytic machining is performed on the metal material thin plate again, the groove depth is increased, the grinding wheel can be continuously used, and the durability of the grinding wheel is improved.
2. The grinding wheel base body and the metal material sheet have good heat conductivity, heat in a grinding area can be conducted out, the temperature of the grinding area is reduced, grinding burn is effectively inhibited, the residual stress of the surface of a workpiece is improved, and the surface quality of the workpiece is improved.
3. The grinding wheel with the groove structure is low in preparation cost and convenient for realizing industrial production. When the grinding wheel is used for grinding, the grinding force can be reduced, and the cooling liquid enters the groove structure, so that the heat dissipation capacity can be enhanced.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view showing a groove structure of a grinding surface of a grinding wheel, wherein (a) is a parallel groove, (b) is an inclined groove, (c) is a V-shaped groove, and (d) is a cross groove;
FIG. 2 is a schematic view of a sheet structure of a metal material, wherein (a) is a flat sheet and (b) is a "V" -shaped sheet;
FIG. 3 is a schematic view of a sheet structure of a metal material, wherein (a) is a flat sheet and (b) is a "V" shaped sheet;
FIG. 4 is a schematic view of the connection between the grinding wheel base body with a parallel groove structure and a metal material sheet;
FIG. 5 is a schematic view of the connection between the grinding wheel base with the inclined groove structure and the metal material sheet;
FIG. 6 is a schematic view of the connection between the grinding wheel base body with V-shaped groove structure and the metal material sheet;
FIG. 7 is a schematic view of the connection between the grinding wheel base and the metal material sheet in the cross-grooved structure;
FIG. 8 is a schematic view of wheel solidification;
FIG. 9 is a schematic view of wheel solidification;
FIG. 10 is a schematic view of a grooved abrasive wheel assembly;
FIG. 11 is a schematic view of a groove structure of a grinding wheel;
FIG. 12 is a schematic view of a groove structure on the surface of a grinding wheel prepared by electrolytic machining;
FIG. 13 is a partial schematic view of a grinding wheel with a grooved structure;
the figures show that:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
According to the invention, the grinding wheel with the groove structure comprises: the grinding wheel comprises a grinding wheel base body 1, a metal material sheet 2 and an abrasive binding agent mixture 3; the metal material sheet 2 is connected with the grinding wheel base body 1; the abrasive bonding agent mixture 3 is filled between the metal material sheets 2; the grinding wheel base body 1 has conductivity; the abrasive binder mixture is not electrically conductive and cannot be removed by electrolytic machining; the sheet of metal material 2 can be gradually removed during the electrolytic machining process, so as to form grooves, the depth of which is controlled by the electrolytic machining. The metal material sheet 2 forms an annular array structure by taking the grinding wheel matrix 1 as a center. The array structure of the metal material thin plate 2 is consistent with the array structure of the grooves. The width of the groove corresponds to the thickness of the sheet of metal material 2. In a preferred embodiment, the abrasive binder mixture 3 includes an abrasive and a binder, and the abrasive binder mixture 3 may include additives according to the curing requirements of the abrasive and the binder. In the grinding process, the depth of the groove structure is gradually reduced along with the abrasion of the grinding wheel, the metal material sheet 2 is subjected to electrolytic machining after being used for a period of time, the depth of the groove is increased, and the grinding wheel can be reused.
Further, the trench is a parallel trench structure, or an inclined trench structure, or a V-shaped trench structure, or an intersecting trench structure, as shown in fig. 1. The grooves and the sheet metal material 2 comprise the following combined states: when the groove structure is a parallel groove structure, the metal material sheet 2 is a plane sheet, and the metal material sheet 2 is placed in parallel to the axis of the grinding wheel base body 1; when the groove structure is an inclined groove structure, the metal material sheet 2 is a plane sheet, and an inclined angle exists between the metal material sheet 2 and the axis of the grinding wheel base body 1; when the groove structure is a V-shaped groove structure, the metal material thin plates 2 are V-shaped thin plates, and a plurality of sawtooth line structures which are separated by preset distances are formed among the V-shaped thin plates; when the groove structure is a cross groove, the metal material thin plate 2 is a V-shaped thin plate, and the V-shaped thin plates contact with each other to form a grid structure. The abrasive material bonding agent mixture 3 comprises a grinding wheel structure strengthening area close to the grinding wheel base body 1 and a grinding wheel effective grinding area far away from the grinding wheel base body 1; in the structure strengthening area of the grinding wheel, the axial width of the abrasive and bonding agent mixture 3 is greater than that of the metal material sheet 2; in the effective grinding area of the grinding wheel, the axial width of the abrasive and binding agent mixture 3 is the same as that of the metal material sheet 2, and the abrasive and binding agent mixture is divided into a plurality of small areas connected with the structure strengthening area of the grinding wheel by the metal material sheet 2, so that the strength of the grinding wheel is improved, and the heat conduction of the grinding wheel is facilitated.
Furthermore, the trenches are parallel trench structures, or inclined trench structures, or V-shaped trench structures, or crossed trench structures, as shown in fig. 1. The grooves and the sheet metal material 2 comprise the following combined states: when the groove structure is a parallel groove structure, the metal material sheet 2 is a plane sheet, and the metal material sheet 2 is placed in parallel to the axis of the grinding wheel base body 1; when the groove structure is an inclined groove structure, the metal material sheet 2 is a plane sheet, and an inclined angle exists between the metal material sheet 2 and the axis of the grinding wheel base body 1; when the groove structure is a V-shaped groove structure, the metal material thin plates 2 are V-shaped thin plates, and a plurality of sawtooth line structures which are separated by preset distances are formed among the V-shaped thin plates; when the groove structure is a cross groove, the metal material thin plate 2 is a V-shaped thin plate, and the V-shaped thin plates contact with each other to form a grid structure. The abrasive material bonding agent mixture 3 comprises a grinding wheel structure strengthening area close to the grinding wheel base body 1 and a grinding wheel effective grinding area far away from the grinding wheel base body 1; the axial width of the grinding wheel structure strengthening area is greater than that of the effective grinding area of the grinding wheel, and the widths of the metal material sheets 2 in the grinding wheel structure strengthening area and the effective grinding area are consistent; the abrasive and bonding agent mixture 3 in the effective grinding area of the grinding wheel is divided into a plurality of small areas connected with the structure strengthening area of the grinding wheel by the metal material sheet 2. In a preferred embodiment, the grinding wheel is used for grinding, cooling liquid enters a groove structure of the grinding wheel, the heat dissipation capacity can be enhanced, meanwhile, the grinding wheel base body 1 and the metal material sheet 2 have good heat conductivity, grinding heat can be conducted out, the temperature of a grinding area is reduced, grinding burn is effectively inhibited, the residual stress of the surface of a workpiece is improved, and the surface quality of the workpiece is improved. In a preferred embodiment, in order to improve the strength of the grinding wheel, the width a of the metal material sheet 2 in the grinding wheel structure strengthening region in the grinding wheel axial direction is smaller than the grinding wheel grinding region width b. In a preferred embodiment, in order to improve the strength of the grinding wheel, the shape of the grinding wheel mold is set so that the axial width of the grinding wheel structure strengthening region is larger than the axial width of the effective grinding region of the grinding wheel, and the widths of the metal material thin plates 2 in the grinding wheel structure strengthening region and the effective grinding region are the same.
The invention provides a preparation method of a grinding wheel with a groove structure, which comprises the following steps:
step 1: connecting a metal material sheet 2 with a grinding wheel matrix 1;
step 2: placing the metal material thin plates 2 and the grinding wheel base body 1 in a grinding wheel die 5 and filling the grinding material and bonding agent mixture 3, so that the grinding material and bonding agent mixture 3 is filled between the metal material thin plates 2;
and step 3: carrying out grinding wheel solidification, and separating the grinding wheel from the grinding wheel mold 5 after the grinding wheel is solidified;
and 4, step 4: and performing electrolytic machining on the grinding wheel to form a groove.
According to the use method of the grinding wheel with the groove structure, which is provided by the invention, the grinding wheel with the groove structure is adopted, and when the depth of the groove of the grinding wheel is smaller than a preset value, the metal material sheet 2 is gradually removed through electrolytic machining, so that the depth of the groove is correspondingly deepened.
In a preferred embodiment, the grinding wheel with the groove structure and the preparation method thereof comprise the following steps:
a. connecting a metal material thin plate 2 with a grinding wheel base body 1, wherein the metal material thin plate 2 forms an annular array structure by taking the grinding wheel base body 1 as a center, the thickness of the metal material thin plate 2 is not less than 20 micrometers, and the preferable thickness of the metal material thin plate 2 is 100 micrometers-2 mm; arranging a placement position of the metal material sheet 2 according to a required grinding wheel grinding surface groove structure; when the groove structure is a parallel groove structure, the metal material sheet 2 is a plane sheet, as shown in fig. 2a, and the metal material sheet 2 is placed parallel to the axis of the grinding wheel base 1, as shown in fig. 4; when the groove structure is an inclined groove structure, the metal material sheet 2 is a planar sheet, as shown in fig. 2a, and the metal material sheet 2 has an inclined angle with the axis of the grinding wheel base 1, as shown in fig. 5; when the groove structure is a V-shaped groove structure, the metal material sheets 2 are V-shaped sheets, as shown in fig. 2b, a plurality of zigzag line structures are formed between the V-shaped sheets at predetermined intervals, as shown in fig. 6; when the groove structure is a cross groove, the metal material sheets 2 are V-shaped sheets, as shown in fig. 2b, and the V-shaped sheets contact with each other to form a grid structure, as shown in fig. 7; in order to improve the strength of the grinding wheel, the width a of the metal material thin plate 2 close to the grinding wheel base body in the axial direction of the grinding wheel is smaller than the width of the grinding wheel, the area is a grinding wheel structure strengthening area, the width b of the metal material thin plate close to the grinding surface of the grinding wheel is consistent with the width of a grinding area of the grinding wheel, the area is an effective grinding area of the grinding wheel, and the preferred size a/b is 1/5-4/5;
b. mixing an abrasive and a bonding agent, and adding an additive into the mixture according to the requirement to form an abrasive bonding agent mixture 3;
c. placing a grinding wheel matrix 1 and a metal material sheet 2 in a grinding wheel die 5; filling the abrasive bond mixture 3 in the grinding wheel mold 5, as shown in fig. 8; in the structure strengthening area of the grinding wheel, the axial width of the abrasive and bonding agent mixture 3 is larger than that of the metal material sheet 2; in the effective grinding area of the grinding wheel, the axial width of the abrasive bonding agent mixture 3 is the same as that of the metal material sheet 2, and the abrasive bonding agent mixture is divided into a plurality of small areas connected with the structure strengthening area of the grinding wheel by the metal material sheet 2;
d. selecting proper conditions according to different grinding materials and bonding agents to carry out grinding wheel solidification, and separating the grinding wheel 4 from the grinding wheel mold 5 after solidification;
e. dressing the grinding wheel 4 into a desired shape, as shown in fig. 10;
f. as shown in FIG. 12, the grinding wheel 4 is electrolytically machined, the grinding wheel base 1 is connected with the positive electrode of a power supply 8, the cathode tool 7 is connected with the negative electrode of the power supply 8 and the annular thin plate, the metal material thin plate 2 is an anode workpiece, the distance between the cathode tool 7 and the surface of the grinding wheel 4 is 5 mm-20 mm, and the electrolyte 6 is a high-pressure flowing electrolyte, preferably NaNO3The pressure of the electrolyte is 0.1MPa to 0.5MPa, and the power supply voltage is 20V to 30V; the electrolytic machining is performed after the power supply 8 is energized, the thin metal material plate 2 is removed by the electrolytic reaction, and the removed area is left with a groove structure, the depth of the groove is determined by the electrolytic machining time, and the preferable groove depth is 100 μm to 1mm, as shown in fig. 13.
g. And (f) after the grinding wheel is used for grinding, the depth of the groove on the grinding surface of the grinding wheel is gradually reduced, the metal material sheet 2 is subjected to electrolytic machining according to the method in the step f according to the requirement, the depth of the groove is increased, and the grinding wheel can be used for grinding again.
In a preferred embodiment, the grinding wheel with the groove structure and the preparation method thereof comprise the following steps:
a. connecting a metal material thin plate 2 with a grinding wheel base body 1, wherein the metal material thin plate 2 forms an annular array structure by taking the grinding wheel base body 1 as a center, the thickness of the metal material thin plate 2 is not less than 20 micrometers, and the preferable thickness of the metal material thin plate 2 is 100 micrometers-2 mm; arranging a placement position of the metal material sheet 2 according to a required grinding wheel grinding surface groove structure; when the groove structure is a parallel groove structure, the metal material sheet 2 is a plane sheet, and as shown in fig. 3a, the metal material sheet 2 is placed parallel to the axis of the grinding wheel base body 1; when the groove structure is an inclined groove structure, the metal material sheet 2 is a planar sheet, and as shown in fig. 3a, an inclined angle exists between the metal material sheet 2 and the axis of the grinding wheel base body 1; when the groove structure is a V-shaped groove structure, the metal material thin plates 2 are V-shaped thin plates, and as shown in fig. 3b, a plurality of sawtooth line structures separated by a predetermined distance are formed between the V-shaped thin plates; when the groove structure is a cross groove, the metal material thin plate 2 is a V-shaped thin plate, and as shown in fig. 3b, the V-shaped thin plates contact with each other to form a grid structure;
b. mixing an abrasive and a bonding agent, and adding an additive into the mixture according to the requirement to form an abrasive bonding agent mixture 3;
c. placing a grinding wheel matrix 1 and a metal material sheet 2 in a grinding wheel die 5; filling the abrasive bond mixture 3 in the grinding wheel mold 5, as shown in fig. 9; setting the shape of a grinding wheel mold 5, wherein the abrasive and binding agent mixture 3 comprises a grinding wheel structure strengthening area close to a grinding wheel base body 1 and a grinding wheel effective grinding area far away from the grinding wheel base body 1; the axial width of the reinforced area of the grinding wheel structure is larger than that of the effective grinding area of the grinding wheel, and the abrasive and bonding agent mixture 3 in the effective grinding area of the grinding wheel is divided into a plurality of small areas connected with the reinforced area of the grinding wheel structure by the metal material sheet 2.
d. Selecting proper conditions according to different grinding materials and bonding agents to carry out grinding wheel solidification, and separating the grinding wheel 4 from the grinding wheel mold 5 after solidification;
e. dressing the grinding wheel 4 into a desired shape, as shown in fig. 11;
f. as shown in FIG. 12, the grinding wheel 4 is electrolytically machined, the grinding wheel base 1 is connected with the positive electrode of a power supply 8, the cathode tool 7 is connected with the negative electrode of the power supply 8 and the annular thin plate, the metal material thin plate 2 is an anode workpiece, the distance between the cathode tool 7 and the surface of the grinding wheel 4 is 5 mm-20 mm, and the electrolyte 6 is a high-pressure flowing electrolyte, preferably NaNO3The pressure of the electrolyte is 0.1MPa to 0.5MPa, and the power supply voltage is 20V to 30V; the electrolytic machining is carried out after the power supply 8 is electrified, the metal material thin plate 2 is removed through electrolytic reaction, a groove structure is left in the removed area, the removal size of the metal material thin plate is determined according to the depth of the groove, the depth of the groove is determined by the electrolytic machining time, and the preferable depth of the groove is 100 micrometers-1 mm, as shown in FIG. 13.
g. And (f) after the grinding wheel is used for grinding, the depth of the groove on the grinding surface of the grinding wheel is gradually reduced, the metal material sheet 2 is subjected to electrolytic machining according to the method in the step f according to the requirement, the depth of the groove is increased, and the grinding wheel can be used for grinding again.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A grinding wheel having a grooved structure, comprising: the grinding wheel comprises a grinding wheel base body (1), a metal material sheet (2) and an abrasive binding agent mixture (3);
the metal material thin plate (2) is connected with the grinding wheel base body (1);
abrasive bonding agent mixtures (3) are filled between the metal material thin plates (2);
the grinding wheel base body (1) has conductivity;
the abrasive bond mixture (3) is not electrically conductive and cannot be removed by electrolytic machining;
the sheet metal material (2) can be gradually removed during the electrolytic machining process, so as to form grooves, the depth of which is controlled by the electrolytic machining.
2. The grooved structure grinding wheel according to claim 1, characterized in that the sheet metal material (2) forms an annular array structure centered on the grinding wheel base (1).
3. Grinding wheel with grooved structure according to claim 2, characterized in that the array of the sheet metal material (2) corresponds to the array of grooves.
4. The grinding wheel with groove structure according to claim 1, characterized in that the width of the groove corresponds to the thickness of the sheet metal material (2).
5. The grinding wheel having a groove structure according to claim 1, wherein the grooves are in a parallel groove structure, or in an inclined groove structure, or in a V-groove structure, or in a cross groove structure.
6. Grinding wheel with grooved structure according to claim 5, characterized in that said grooves and the sheet metal material (2) comprise, in combination:
when the groove structure is a parallel groove structure, the metal material thin plate (2) is a plane thin plate, and the metal material thin plate (2) is placed in parallel to the axis of the grinding wheel base body (1);
when the groove structure is an inclined groove structure, the metal material thin plate (2) is a plane thin plate, and an inclined angle exists between the metal material thin plate (2) and the axis of the grinding wheel base body (1);
when the groove structure is a V-shaped groove structure, the metal material thin plates (2) are V-shaped thin plates, and a plurality of sawtooth line structures which are separated by preset distances are formed among the V-shaped thin plates;
when the groove structure is a cross groove structure, the metal material thin plate (2) is a V-shaped thin plate, and the V-shaped thin plates are contacted with each other to form a grid structure.
7. The grooved structured grinding wheel according to claim 1, characterized in that the abrasive bond mixture (3) comprises a grinding wheel structure strengthening area close to the grinding wheel base (1) and a grinding wheel active grinding area far from the grinding wheel base (1);
the width of the metal material thin plate (2) in the grinding wheel structure strengthening area along the axial direction of the grinding wheel is smaller than that of the metal material thin plate (2) in the effective grinding area of the grinding wheel;
in the reinforcing area of the grinding wheel structure, the axial width of the abrasive bonding agent mixture (3) is greater than that of the metal material sheet (2);
in the effective grinding area of the grinding wheel, the axial width of the abrasive bonding agent mixture (3) is the same as that of the metal material sheet (2), and the abrasive bonding agent mixture is divided into a plurality of small areas connected with the grinding wheel structure strengthening area by the metal material sheet (2).
8. The grooved structured grinding wheel according to claim 1, characterized in that the abrasive bond mixture (3) comprises a grinding wheel structure strengthening area close to the grinding wheel base (1) and a grinding wheel active grinding area far from the grinding wheel base (1);
the axial width of the grinding wheel structure strengthening area is larger than that of the effective grinding area of the grinding wheel, and the axial widths of the metal material thin plates (2) in the grinding wheel structure strengthening area and the effective grinding area are consistent.
9. A method for manufacturing a grinding wheel having a groove structure, which is based on any one of claims 1 to 8, and comprises the steps of:
step 1: connecting a metal material sheet (2) with the grinding wheel base body (1);
step 2: placing the metal material sheets (2) and the grinding wheel base body (1) in a grinding wheel die (5) and filling an abrasive bonding agent mixture (3) so that the abrasive bonding agent mixture (3) is filled between the metal material sheets (2);
and step 3: carrying out grinding wheel solidification, and separating the grinding wheel from the grinding wheel mold (5) after the grinding wheel is solidified;
and 4, step 4: and performing electrolytic machining on the grinding wheel to form a groove.
10. A method for using a grinding wheel having a groove structure, characterized in that, when the groove depth of the grinding wheel is less than a predetermined value, a thin metal plate (2) is gradually removed by electrolytic machining to correspondingly deepen the groove depth by using the grinding wheel having a groove structure according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910988969.7A CN110653728B (en) | 2019-10-17 | 2019-10-17 | Grinding wheel with groove structure and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910988969.7A CN110653728B (en) | 2019-10-17 | 2019-10-17 | Grinding wheel with groove structure and preparation method |
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| CN110653728A CN110653728A (en) | 2020-01-07 |
| CN110653728B true CN110653728B (en) | 2021-06-04 |
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| GB2098892A (en) * | 1981-05-21 | 1982-12-01 | Nicco Machine Tool Co Ltd | Grinding wheel |
| CN107866756A (en) * | 2017-12-05 | 2018-04-03 | 长沙理工大学 | A kind of micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel and preparation method thereof in order |
| CN108381411A (en) * | 2018-03-09 | 2018-08-10 | 郑州磨料磨具磨削研究所有限公司 | A kind of the plating ultra-thin cutting slice and its manufacturing method of groove structure |
| CN208483732U (en) * | 2018-05-03 | 2019-02-12 | 深圳大学 | A kind of grinding wheel tool of very low power processing |
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| US8192257B2 (en) * | 2006-04-06 | 2012-06-05 | Micron Technology, Inc. | Method of manufacture of constant groove depth pads |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2098892A (en) * | 1981-05-21 | 1982-12-01 | Nicco Machine Tool Co Ltd | Grinding wheel |
| US4532019A (en) * | 1981-05-21 | 1985-07-30 | Nicco Machine Tool Company Ltd. | Grinding wheel and method for electrolytic and mechanical grinding |
| CN107866756A (en) * | 2017-12-05 | 2018-04-03 | 长沙理工大学 | A kind of micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel and preparation method thereof in order |
| CN108381411A (en) * | 2018-03-09 | 2018-08-10 | 郑州磨料磨具磨削研究所有限公司 | A kind of the plating ultra-thin cutting slice and its manufacturing method of groove structure |
| CN208483732U (en) * | 2018-05-03 | 2019-02-12 | 深圳大学 | A kind of grinding wheel tool of very low power processing |
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