Ring grinding wheel

Abstract

The utility model discloses an annular grinding wheel, which belongs to the technology of mechanical precision machining grinding tools. In the existing precision machining, multiple clamping is labor-consuming and time-consuming, and it is difficult to take into account both surface quality and grinding efficiency when completing grinding at one time. The annular wheel body of the utility model includes a base part and a difference part that are made into one body. The base part and the difference part extend together to the outer annular surface or / and the inner annular surface so that the outer annular surface or / and the inner annular surface both include grinding surfaces with different grinding characteristics. The grinding surfaces with different grinding characteristics include a base grinding surface formed by the base part and a difference grinding surface formed by the difference part. During grinding, different grinding processes can be simultaneously realized by the same grinding wheel, the workpiece is clamped at one time, and different grinding processes are completed at one time. It is suitable for one-time positioning, and a grinding process that takes into account both efficiency and surface quality during grinding.

Description

Technical Field

[0001] The utility model belongs to the mechanical precision machining grinding tool technology, in particular to an annular grinding wheel. Background Art

[0002] Precision machining requires precision grinding. When multiple clamping is required, such as when rough grinding and fine grinding are performed separately, the repeated positioning and clamping of the grinding surface is labor-intensive and time-consuming.

[0003] When grinding is completed in one go, if the focus is on grinding efficiency, it will be difficult to ensure the grinding surface quality; if the focus is on grinding surface quality, the grinding efficiency will be lost.

[0004] The grinding process that can achieve one-time positioning and take both efficiency and surface quality into consideration during grinding is currently scarce.

[0005] The annular grinding wheel of the utility model is exactly the indispensable tool of this technology. Utility Model Content

[0006] The technical problem to be solved and the technical task proposed by the utility model are to overcome the defects of the existing grinding process that multiple clamping is labor-consuming and time-consuming, and it is difficult to take into account both the surface quality and the grinding efficiency when completing the grinding in one time, and to provide an annular grinding wheel suitable for one-time positioning, which takes into account both the efficiency and the surface quality during grinding.

[0007] To achieve the above-mentioned purpose, the annular grinding wheel of the utility model comprises an annular wheel body, the annular wheel body comprises an outer annular surface and an inner annular surface, and is characterized in that: the annular wheel body comprises a base portion and a difference portion which are made as one body, the base portion and the difference portion extend together to the outer annular surface and / or the inner annular surface so that the outer annular surface and / or the inner annular surface both comprise grinding surfaces with different grinding characteristics, and the grinding surfaces with different grinding characteristics comprise a base grinding surface formed by the base portion and a difference grinding surface formed by the difference portion.

[0008] The utility model provides grinding surfaces with different grinding characteristics on the outer ring surface or / and the inner ring surface, so that different grinding processes, such as rough grinding and fine grinding, can be simultaneously realized by the same grinding wheel during grinding, and the workpiece can be clamped at one time, and different grinding processes can be completed at one time. It is suitable for one-time positioning, and a grinding process that takes into account both efficiency and surface quality during grinding.

[0009] Preferably, the difference portion includes at least one, and each difference portion forms a corresponding difference grinding surface on the outer annular surface or / and the inner annular surface, thereby achieving a more precise grinding process.

[0010] Preferably, the base grinding surface and the differential grinding surface are evenly spaced on the circumference of the outer annular surface or / and the inner annular surface. During the grinding process, the base grinding surface and the differential grinding surface always work in a complementary manner, rather than tending to one type of grinding, to ensure grinding efficiency and quality.

[0011] Preferably, the outer annular surface and / or the inner annular surface is a continuous annular surface, so that grinding surfaces with different grinding characteristics can continuously grind the workpiece surface during the grinding process.

[0012] Preferably, a gap is provided between adjacent grinding surfaces with different grinding characteristics on the outer annular surface or / and the inner annular surface to play the role of chip accommodation and cooling.

[0013] Preferably, the different grinding characteristics are different particle sizes of the abrasive. Alternatively, the different grinding characteristics are different components of the abrasive. Alternatively, the different grinding characteristics are different porosities of the abrasive. Alternatively, the different grinding characteristics are different in at least one of the particle size, component and porosity of the abrasive. Accordingly, according to different grinding processing requirements, a grinding wheel configured with different grinding characteristics is selected to achieve higher grinding quality and grinding efficiency.

[0014] Preferably, the base part is continuously distributed, and the difference part is dispersed relative to the base part. Accordingly, the base part is used as a basis to form a support for the difference part, thereby ensuring the strength and rigidity of the entire annular wheel body and resisting deformation of the annular wheel body.

[0015] The annular wheel body of the utility model includes a base part and a differential part which are made into one body. The base part and the differential part extend together to the outer annular surface and / or the inner annular surface so that the outer annular surface and / or the inner annular surface both include grinding surfaces with different grinding characteristics. The grinding surfaces with different grinding characteristics include a base grinding surface formed by the base part and a differential grinding surface formed by the differential part. During grinding, different grinding processes can be simultaneously realized by the same grinding wheel, the workpiece is clamped at one time, and different grinding processes are completed at one time. It is suitable for one-time positioning, and a grinding process that takes into account both efficiency and surface quality during grinding.

[0016] The utility model provides a gap between adjacent grinding surfaces with different grinding characteristics on the outer annular surface or / and the inner annular surface to play the role of chip accommodation and cooling, thereby ensuring the performance of the grinding wheel and the grinding quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the appearance of a structure of an annular grinding wheel of the utility model;

[0018] Figure 2 It is a schematic diagram of the appearance of another structure of the annular grinding wheel of the utility model;

[0019] Figure 3 It is a schematic diagram of the axial orthographic projection of the annular grinding wheel of Example 1 of the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of the annular grinding wheel of Example 1 of the utility model;

[0021] Figure 5 It is a cross-sectional schematic diagram of the annular grinding wheel of Example 2 of the utility model;

[0022] Figure 6 It is a cross-sectional schematic diagram of the annular grinding wheel of Example 3 of the utility model;

[0023] Figure 7 It is a schematic diagram of the axial orthographic projection of the annular grinding wheel of Example 4 of the utility model;

[0024] Figure 8 It is a cross-sectional schematic diagram of an annular grinding wheel according to Embodiment 4 of the present utility model;

[0025] Fig. 9 It is a cross-sectional schematic diagram of the annular grinding wheel of Example 5 of the utility model;

[0026] Fig.10 It is a cross-sectional schematic diagram of the annular grinding wheel of Example 6 of the utility model;

[0027] Fig.11 It is a schematic diagram of the axial orthographic projection of the annular grinding wheel of Example 7 of the utility model;

[0028] Fig.12 It is a cross-sectional schematic diagram of the annular grinding wheel of Example 7 of the utility model;

[0029] Fig.13 This is a schematic diagram of the appearance of the annular grinding wheel of Example 8 of the utility model;

[0030] Fig.14 This is a schematic diagram of the appearance of the annular grinding wheel of Example 9 of the utility model;

[0031] Fig.15 It is a schematic diagram of an axial orthographic projection of an annular grinding wheel according to Embodiment 10 of the utility model;

[0032] Fig.16 for Fig.15 AA section view;

[0033] Description of the numbers in the figure:

[0034] 100 is an outer ring surface, 101 is an axial section profile of the outer ring surface;

[0035] 200 inner ring surface, 201 axial section profile of the inner ring surface;

[0036] 300 Ring wheel body:

[0037] 310 base part, 311 base grinding surface,

[0038] 320 difference part, 321 difference grinding surface,

[0039] 322 first difference portion, 323 first difference grinding surface,

[0040] 324 second difference portion, 325 second difference grinding surface,

[0041] 330 gap. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but may also include other technical features that are not clearly listed and can be included in the method or product.

[0044] In the description of the present utility model, it is necessary to understand that the technical features defined by the terms "first", "second" and the like with sequential concepts are only for the purpose of clearly describing the defined technical features so that the defined technical features can be clearly distinguished from other technical features, but do not represent such naming in actual implementation, and therefore cannot be understood as a limitation of the present utility model.

[0045] The present invention is described in detail below in conjunction with specific embodiments and drawings.

[0046] Example 1

[0047] like Figure 1-2 , Figure 3-4The annular grinding wheel shown has an outer annular surface 100 and an inner annular surface 200. The annular means that the axial projection of the inner and outer edges of the annular grinding wheel has a continuous or discontinuous arc. When the arc is continuous, it forms a complete circle, and when the arc is discontinuous, it is located on the same circle. Accordingly, the outer annular surface 100 is the outer ring boundary of the annular wheel body 300, and the inner annular surface 200 is the inner ring boundary of the annular wheel body 300, so that the annular wheel body 300 is defined between the outer annular surface 100 and the inner annular surface 200.

[0048] In this embodiment, the annular wheel body 300 includes a base portion 310 and a difference portion 320 that are made into one piece, wherein the base portion 310 and the difference portion 320 both contain abrasives, pore agents, and binders and are sintered into one piece. The difference between the base portion 310 and the difference portion 320 in any one of the abrasives, pore agents, and binders can make the base portion and the difference portion have differences in grinding characteristics. Accordingly, the base portion 310 and the difference portion 320 extend together to the outer annular surface 100 so that the outer annular surface 100 includes grinding surfaces with different grinding characteristics, and these grinding surfaces with different grinding characteristics include a base grinding surface 311 formed by the base portion 310 and a difference grinding surface 321 formed by the difference portion 320.

[0049] Moreover, the base grinding surface 311 and the difference grinding surface 321 are evenly spaced on the circumference of the outer annular surface 100. Their arc lengths are substantially equal. The outer annular surface 100 is a continuous annular surface. The base part 310 is continuously distributed and connected to form a complete area, and the difference part 320 is dispersed relative to the base part 310 along the outer annular surface 100 of the annular grinding wheel.

[0050] In this embodiment, the grinding surfaces with different grinding characteristics can be used for one of rough grinding, semi-finishing grinding and fine grinding, respectively, so that two types of grinding can be achieved with one grinding wheel.

[0051] In this embodiment, the axial cross-section (a cross-section obtained by cutting a plane passing through the axis) of the outer annular surface 100 has an arc shape, and the axial cross-section of the inner annular surface 200 has a straight line shape.

[0052] Example 2

[0053] like Figure 5 As shown, compared with Example 1, the difference between this embodiment and Example 1 is that a gap 330 is provided between adjacent grinding surfaces with different grinding characteristics of the outer annular surface 100. The rest of the structure of this embodiment is the same as that of Example 1 and will not be described in detail.

[0054] Example 3

[0055] like Figure 6As shown, compared with Example 1, the difference between this embodiment and Example 1 is that the difference portion 320 includes a first difference portion 322 and a second difference portion 324, and a first difference grinding surface 323 corresponding to the first difference portion 322 and a second difference grinding surface 325 corresponding to the second difference portion 324 are formed on the outer annular surface 100. Among them, the first difference portion 322 and the second difference portion 324 have differences in any one of abrasives, pore agents and adhesives, so that the first difference portion and the second difference portion have differences in grinding characteristics. In addition, a gap 330 is set between adjacent grinding surfaces with different grinding characteristics of the outer annular surface 100. The rest of the structure of this embodiment is the same as that of Example 1, and will not be repeated.

[0056] In other embodiments, the difference portion may include more than three types, and each difference portion forms a corresponding difference grinding surface on the outer annular surface 100 and / or the inner annular surface 200 .

[0057] In this embodiment, the grinding surfaces with different grinding characteristics can be used for one of rough grinding, semi-finishing grinding and fine grinding, respectively, so that three types of grinding can be achieved with one grinding wheel.

[0058] Example 4

[0059] like Figure 7-8 As shown, compared with Example 1, the difference between this embodiment and Example 1 is that the difference part 320 of this embodiment is dispersed along the inner annular surface of the annular grinding wheel relative to the base part 310. The rest of the structure of this embodiment is the same as that of Example 1 and will not be described in detail.

[0060] In this embodiment, the axial cross-sectional profile of the outer annular surface 100 is a straight line, and the axial cross-sectional profile of the inner annular surface 200 is an arc.

[0061] Example 5

[0062] like Fig. 9 As shown, compared with Example 2, the difference between this embodiment and Example 2 is that the difference part 320 of this embodiment is dispersed along the inner annular surface of the annular grinding wheel relative to the base part 310. The rest of the structure of this embodiment is the same as that of Example 2 and will not be described in detail.

[0063] In this embodiment, the axial cross-sectional profile of the outer annular surface 100 is a straight line, and the axial cross-sectional profile of the inner annular surface 200 is an arc.

[0064] Example 6

[0065] like Fig.10As shown, compared with Example 3, the difference between this embodiment and Example 3 is that the difference part 320 of this embodiment is dispersed along the inner annular surface of the annular grinding wheel relative to the base part 310. The rest of the structure of this embodiment is the same as that of Example 3 and will not be described in detail.

[0066] In this embodiment, the axial cross-sectional profile of the outer annular surface 100 is a straight line, and the axial cross-sectional profile of the inner annular surface 200 is an arc.

[0067] Example 7

[0068] like Figure 11-12 As shown, compared with Example 1, the difference between this embodiment and Example 1 is that the difference part 320 of this embodiment is also dispersed along the inner annular surface of the annular grinding wheel relative to the base part 310. The rest of the structure of this embodiment is the same as that of Example 1 and will not be described in detail.

[0069] The annular grinding wheel of this embodiment can grind the workpiece surface using the inner annular surface or the outer annular surface according to the requirements.

[0070] In this embodiment, the axial cross-sectional profile of the outer annular surface 100 is an arc, and the axial cross-sectional profile of the inner annular surface 200 is an arc.

[0071] In addition to the axial cross-sectional profile of the outer annular surface 100 and the axial cross-sectional profile of the inner annular surface 200 specifically shown in the above embodiments, the axial cross-sectional profile of the outer annular surface 100 is any one of a straight line, an arc, a triangle, a trapezoid, a hyperbola, an ellipse, etc., and the axial cross-sectional profile of the inner annular surface 200 is any one of a straight line, an arc, a triangle, a trapezoid, a hyperbola, an ellipse, etc. Fig.13 In the annular grinding wheel of the embodiment 8 shown, the axial section profile of the outer annular surface 100 is a straight line, and the axial section profile of the inner annular surface 200 is an arc; Fig.14 In the annular grinding wheel of the embodiment 9 shown, the axial cross-sectional profile of the outer annular surface 100 is a straight line, and the axial cross-sectional profile of the inner annular surface 200 is a triangle; Figure 15-16 In the annular grinding wheel of the embodiment 10 shown, the axial section profile 101 of the outer annular surface 100 is a straight line, and the axial section profile 201 of the inner annular surface 200 is an arc. To avoid redundancy, examples are not given one by one.

[0072] Taking precision screw grinding as an example, rough grinding and fine grinding are often required. If the same grinding wheel is used for grinding, and a grinding wheel with strong cutting function is selected, the ground product will have lower quality dimensional accuracy and surface accuracy; if a grinding wheel with high surface quality is selected, the grinding efficiency will be too slow. If the rough grinding and fine grinding are performed twice (using different grinding wheels), it is difficult to repeat the positioning of the two grindings.

[0073] By using the annular grinding wheel of the utility model, such as the annular grinding wheel of any of the aforementioned embodiments, only one-time positioning and clamping are required, and both efficiency and surface quality of the workpiece are taken into consideration during grinding.

[0074] High-speed grinding is the development direction of high-efficiency grinding and precision grinding. When the outer ring surface of the grinding wheel is used for industrial grinding, it is in a free state and lacks necessary support. It is easy to deform and be damaged by external forces. Therefore, due to the strength of the grinding wheel, the safe linear speed of the grinding wheel during grinding is maintained within 60m / s.

[0075] However, since it is easy to increase the spindle speed of the grinder, another advantage of the present invention is that the inner annular surface of the grinding wheel can be used to grind the workpiece at high speed. At this time, the outer diameter of the grinding wheel is tightened, so that the grinding wheel rotates at high speed along with the spindle of the grinder. When the inner annular surface of the grinding wheel contacts the surface of the workpiece for grinding, the external force of the entire grinding wheel is improved. Therefore, under the same strength, the same grinding wheel can easily overcome the strength limit of the grinding wheel, making the grinding wheel speed greater than 60m / s, achieving high-speed grinding, improving efficiency and quality.

[0076] When the annular grinding wheel of the utility model is used, a plurality of annular grinding wheels can be coaxially installed to cut or grind simultaneously.

Claims

1. An annular grinding wheel, comprising an annular wheel body (300), wherein the annular wheel body (300) has an outer annular surface (100) and an inner annular surface (200), wherein: The annular wheel body comprises a base portion (310) and a differential portion (320) which are formed as one body. The base portion (310) and the differential portion (320) extend together to an outer annular surface (100) or / and an inner annular surface (200) so that the outer annular surface or / and the inner annular surface both comprise grinding surfaces with different grinding characteristics. The grinding surfaces with different grinding characteristics comprise a base grinding surface (311) formed by the base portion (310) and a differential grinding surface (321) formed by the differential portion (320).

2. The annular grinding wheel according to claim 1, characterized in that: The difference portion (320) includes at least one, and each difference portion forms a corresponding difference grinding surface on the outer annular surface (100) or / and the inner annular surface (200).

3. The annular grinding wheel according to claim 1 or 2, characterized in that: The base grinding surface (311) and the differential grinding surface (321) are evenly spaced and distributed on the circumference of the outer annular surface (100) and / or the inner annular surface (200).

4. The annular grinding wheel according to claim 1 or 2, characterized in that: The outer annular surface (100) and / or the inner annular surface (200) are continuous annular surfaces.

5. The annular grinding wheel according to claim 1 or 2, characterized in that: A gap (330) is provided between adjacent grinding surfaces with different grinding characteristics of the outer annular surface (100) and / or the inner annular surface (200).

6. The annular grinding wheel according to claim 1 or 2, characterized in that: The different grinding characteristics are different grain sizes of abrasives.

7. The annular grinding wheel according to claim 1 or 2, characterized in that: The different grinding characteristics are due to the different components of the abrasive.

8. The annular grinding wheel according to claim 1 or 2, characterized in that: The different grinding characteristics are different porosities of abrasives.

9. The annular grinding wheel according to claim 1 or 2, characterized in that: The different grinding characteristics are at least one of the particle size, composition and porosity of the abrasive.

10. The annular grinding wheel according to claim 1 or 2, characterized in that: The base part (310) is distributed continuously, and the difference part (320) is distributed dispersedly relative to the base part.

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