Grinding wheel with groove structure and preparation method
阅读说明：本技术 具有沟槽结构的砂轮及制备方法 (Grinding wheel with groove structure and preparation method ) 是由 姚振强 侯志保 宋嘉诚 樊启泰 于 2019-10-17 设计创作，主要内容包括：本发明提供了一种具有沟槽结构的砂轮,包括：砂轮基体(1)、金属材料薄板(2)以及磨料结合剂混合物(3)；所述金属材料薄板(2)与砂轮基体(1)连接；所述金属材料薄板(2)之间填充有磨料结合剂混合物(3)；所述砂轮基体(1)具有导电性；所述金属材料薄板(2)在电解加工过程中可逐渐被去除,从而形成沟槽,沟槽的深度由电解加工控制。本发明制备成本低,便于实现工业化生产。使用这种砂轮进行磨削加工,可以降低磨削力,冷却液进入沟槽结构,可以增强散热能力；同时砂轮基体(1)和金属材料薄板(2)可以将磨削热量传导出去,降低磨削区域温度。(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.)
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 structure strengthening area of the grinding wheel, the width of the abrasive 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 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 preparation method of a grinding wheel with a groove structure is characterized by comprising the following steps:
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.
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
the
the abrasive
the grinding
the
the sheet of
Preferably, the
Preferably, the array structure of the sheet of
Preferably, the width of the groove corresponds to the thickness of the sheet of
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
when the groove structure is a parallel groove structure, the
when the groove structure is an inclined groove structure, the
when the groove structure is a V-shaped groove structure, the metal material
when the groove structure is a cross groove structure, the metal material
Preferably, the
in the structure strengthening area of the grinding wheel, the width of the abrasive material and
in the effective grinding area of the grinding wheel, the width of the abrasive
Preferably, the
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
the abrasive and
The invention provides a preparation method of a grinding wheel with a groove structure, which comprises the following steps:
step 1: connecting a
step 2: placing the metal material
and step 3: carrying out grinding wheel solidification, and separating the grinding wheel from the grinding
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
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
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
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
The invention provides a preparation method of a grinding wheel with a groove structure, which comprises the following steps:
step 1: connecting a
step 2: placing the metal material
and step 3: carrying out grinding wheel solidification, and separating the grinding wheel from the
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
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
b. mixing an abrasive and a bonding agent, and adding an additive into the mixture according to the requirement to form an abrasive
c. placing a
d. selecting proper conditions according to different grinding materials and bonding agents to carry out grinding wheel solidification, and separating the
e. dressing the
f. as shown in FIG. 12, the
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
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
b. mixing an abrasive and a bonding agent, and adding an additive into the mixture according to the requirement to form an abrasive
c. placing a
d. Selecting proper conditions according to different grinding materials and bonding agents to carry out grinding wheel solidification, and separating the
e. dressing the
f. as shown in FIG. 12, the
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
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.
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