Partition support block and elastic grinding element split-off grinding wheel

Abstract

The utility model relates to a kind of partition support block and elastic grinding piece split-off grinding wheel, belong to the field of grinding. Including: two oppositely arranged support surfaces, two The support surface one-to-one and circumferentially adjacent two elastic grinding pieces abut, the demarcation line separated from the elastic grinding piece is formed on the support surface, the demarcation line is fold line, curve, the straight line of the radial plane of cup-shaped grinding wheel is arranged at angle, or the straight line of the radial plane of peripheral grinding wheel is arranged at angle. The utility model is favorable to make the stress generated on demarcation line when grinding wheel works disperses, avoid elastic grinding piece fracture at demarcation line due to stress concentration, to cause grinding wheel failure.

Description

Technical Field

[0001] This utility model relates to the field of grinding, and in particular to a grinding wheel that combines a partition support block and an elastic grinding component. Background Technology

[0002] A flexible grinding wheel is composed of multiple flexible grinding elements and multiple spacer blocks that alternately abut against each other along the circumference of the grinding wheel base. All elements are mechanically fixed to the grinding wheel base, forming a cup-shaped grinding wheel by fixing them to one end face of the grinding wheel base, or a peripheral grinding wheel by fixing them to the outer circumference of the grinding wheel base. The flexible grinding elements and spacer blocks overlap and abut against each other, with a dividing line. For a cup-shaped grinding wheel, the dividing line is a straight line parallel to the reference plane of the grinding wheel base; for a peripheral grinding wheel, the dividing line is a straight line parallel to the central axis of the grinding wheel. During operation, the flexible grinding elements are subjected to periodically changing grinding forces. Under these conditions, stress concentration occurs at the dividing line, which can easily cause the flexible grinding elements to fracture at the stress concentration points, leading to grinding wheel failure. To prevent fracture, measures such as increasing the strength of the elastic substrate of the flexible grinding elements, for example, increasing its thickness, are needed. However, this increases the rigidity of the elastic substrate, making it unsuitable for flexible grinding. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a grinding wheel that combines a separating support block and an elastic grinding part, so as to solve the above-mentioned problem.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A dividing support block includes: two opposing support surfaces, each of the two support surfaces corresponding to and abutting against two circumferentially adjacent elastic grinding parts, and a dividing line separating the elastic grinding parts is formed on the support surface. The dividing line is a broken line, a curve, a straight line at an angle to the radial plane of the cup-shaped grinding wheel, or a straight line at an angle to the radial plane of the peripheral grinding wheel.

[0005] The beneficial effects of this utility model are: the dividing line is a broken line, a curve, a straight line set at an angle to the radial plane of the cup-shaped grinding wheel, or a straight line set at an angle to the radial plane of the peripheral grinding wheel. This makes it easier to make the dividing line a straight line that is not parallel to the reference plane of the cup-shaped grinding wheel base, or a straight line that is not parallel to the central axis of the peripheral grinding wheel. This disperses the stress generated on the dividing line when the grinding wheel is working, and avoids the elastic grinding parts from breaking at the dividing line due to stress concentration, thus preventing the grinding wheel from failing.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Another technical solution of this utility model to solve the above-mentioned technical problems is as follows: an elastic grinding component splicing grinding wheel, including multiple of the above-mentioned separating support blocks, multiple elastic grinding components and a grinding wheel base, wherein the multiple separating support blocks and multiple elastic grinding components alternately abut against each other in the circumferential direction to form a grinding ring fixedly installed on the grinding wheel base.

[0008] The beneficial effects of this utility model are: it helps to disperse the stress generated at the boundary line formed by the contact between the separating support block and the elastic grinding part when the grinding wheel is working, and avoids the elastic grinding part from breaking at the boundary line due to stress concentration, thereby causing the grinding wheel to fail.

[0009] Furthermore, the grinding ring is fixedly mounted on the end face of the grinding wheel base to form a cup-shaped grinding wheel.

[0010] The beneficial effect of adopting the above-mentioned further scheme is that it helps the partition support block in the cup-shaped grinding wheel to play the role of stress decomposition.

[0011] Furthermore, the grinding ring is fixedly installed on the outer peripheral surface of the grinding wheel base to form a peripheral grinding wheel.

[0012] The beneficial effect of adopting the above-mentioned further scheme is that it helps the partition support blocks in the peripheral grinding wheel to play a role in decomposing stress.

[0013] Furthermore, a fixing groove is provided on the end face of the grinding wheel base. The fixing groove is an annular groove. One end of the separating support block and one end of the elastic grinding element are adapted to and fixedly installed in the fixing groove.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the fixing groove is conducive to fixing one end of the partition support block and one end of the elastic grinding part to the end face or outer peripheral surface of the grinding wheel base, thereby forming a cup-shaped grinding wheel or a peripheral grinding wheel.

[0015] Furthermore, the elastic grinding element includes an elastic substrate and a grinding layer fixed on the circumferential sidewall of the elastic substrate. One end of the elastic substrate is fixedly connected to the grinding wheel matrix, and the support surface of the partition support block is in contact with the circumferential sidewall of the elastic substrate.

[0016] The beneficial effects of adopting the above-mentioned further solutions are: the elastic substrate helps the grinding wheel to form elastic grinding, and the rigid impact grinding is buffered by elastic deformation, which reduces the risk of damage to the grinding wheel and the workpiece and improves the safety of the grinding process.

[0017] Furthermore, the elastic substrate includes: a mounting section, an elastic transition section, and a working section. The mounting section and the working section are fixedly mounted at both ends of the elastic transition section in a one-to-one correspondence. The grinding layer is fixed on the circumferential sidewall of the working section. The mounting section is fixedly mounted on the grinding wheel base. The supporting surface is adapted and fitted to the mounting section, so that the dividing line on the supporting surface is the dividing line between the mounting section and the elastic transition section.

[0018] The beneficial effects of adopting the above-mentioned further solutions are: it helps to buffer the rigid impact of the grinding layer through the elastic deformation of the elastic transition section, thereby reducing the risk of damage to the grinding wheel and workpiece and improving the safety of the grinding process.

[0019] Furthermore, the grinding layer comprises a plurality of diamond particles and a binder, wherein the plurality of diamond particles are circumferentially fixed to the circumferential sidewall of the working section by the binder in a single layer.

[0020] The beneficial effects of adopting the above-mentioned further solution are: the diamond particles are set in a single layer in the binder, which is conducive to achieving the effect of grinding, cooling and chip removal at the same time, realizing rapid chip removal and instant cooling, which can significantly reduce the friction and frictional heat generated between the powder and the workpiece, and reduce the processing load.

[0021] Furthermore, the mounting section is wrapped with an injection molded part, and the elastic grinding part is wrapped with an injection molded part. Multiple injection molded parts circumferentially abut against each other to form a grinding ring fixedly installed on the grinding wheel base. Adjacent injection molded parts abut against each other and serve as a separation and support function.

[0022] The beneficial effects of adopting the above-mentioned further solutions are: it helps to utilize the elasticity of thermoplastic materials to buffer the stress state of elastic grinding parts and decompose the stress at the boundary line. Attached Figure Description

[0023] Figure 1 A partial structural schematic diagram of the cup-shaped grinding wheel provided in this embodiment of the utility model; Figure 2 for Figure 1 Top view; Figure 3 For along Figure 2 A schematic diagram after being cut open by the middle section line AA; Figure 4 This is a partial structural diagram of the peripheral grinding wheel provided in an embodiment of the present utility model; Figure 5 for Figure 4 Enlarged view of region B in the middle; Figure 6 A schematic diagram of the structure of the elastic grinding component of the peripheral grinding wheel provided in an embodiment of this utility model; Figure 7A side view of the elastic grinding element of the peripheral grinding wheel provided in an embodiment of this utility model; Figure 8 for Figure 7 Enlarged schematic diagram of region D in the middle; Figure 9 A schematic diagram of a cup-shaped grinding wheel elastic grinding component with an injection-molded part wrapped around the mounting section provided in an embodiment of this utility model; Figure 10 A schematic diagram of the peripheral grinding wheel elastic grinding component structure with an injection-molded part wrapped around the mounting section provided in this embodiment of the utility model; Figure 11 Front view of the partition support block provided in the embodiment of this utility model Figure 1 ; Figure 12 Front view of the partition support block provided in the embodiment of this utility model Figure 2 ; Figure 13 Front view of the partition support block provided in the embodiment of this utility model Figure 3 ; Figure 14 Front view of the partition support block provided in the embodiment of this utility model Figure 4 ; Figure 15 Front view of the partition support block provided in the embodiment of this utility model Figure 5 ; Figure 16 Front view of the partition support block provided in the embodiment of this utility model Figure 6 ; Figure 17 Front view of the partition support block provided in the embodiment of this utility model Figure 7 ; Figure 18 Front view of the partition support block provided in the embodiment of this utility model Figure 8 .

[0024] The attached diagram lists the components represented by each number as follows: 1. Separating support block; 2. Elastic grinding part; 3. Grinding wheel base; 4. Injection molded part; 11. Support surface; 12. Dividing line; 21. Elastic base plate; 22. Grinding layer; 31. Fixing groove; 211. Mounting section; 212. Elastic transition section; 213. Working section; 221. Diamond particles; 222. Bonding agent. Detailed Implementation

[0025] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0026] like Figures 1 to 18As shown, this embodiment provides a separating support block, including: two opposing support surfaces 11, each of which corresponds to and abuts against two circumferentially adjacent elastic grinding elements 2, and a dividing line 12 is formed on the support surface 11 to separate the elastic grinding elements 2, wherein the dividing line 12 is a broken line, a curve, a straight line at an angle to the radial plane of the cup-shaped grinding wheel, or a straight line at an angle to the radial plane of the peripheral grinding wheel.

[0027] It should be noted that in this embodiment, the circumferential, axial, and radial directions are based on the grinding ring formed by the alternating circumferential contact of the plurality of the partition support blocks 1 and the plurality of the elastic grinding elements 2. In the prior art, for cup-shaped grinding wheels, the dividing line is a straight line parallel to the reference surface of the grinding wheel base (i.e., a radial plane on the grinding wheel base perpendicular to the axis of the grinding wheel base). Therefore, in this embodiment, the dividing line 12 is a broken line, a curve, or is set at an angle to the radial plane of the cup-shaped grinding wheel, meaning that the dividing line 12 is not parallel to the reference surface of the cup-shaped grinding wheel base. For peripheral grinding wheels, the dividing line is a straight line parallel to the central axis of the grinding wheel. Therefore, in this embodiment, the dividing line 12 is a broken line, a curve, or is set at an angle to the radial plane of the peripheral grinding wheel, meaning that the dividing line 12 is not parallel to the central axis of the peripheral grinding wheel. The "radial plane" and "axial plane" are defined with the central axis of the grinding wheel or grinding ring as the reference. The "radial plane" is the plane perpendicular to the central axis, that is, the plane formed by cutting across the central axis. The "axial plane" is the plane passing through the central axis, that is, the plane formed by cutting along the central axis. The "radial plane" and "axial plane" are perpendicular to each other. In addition to a complete arc, a "curve" also includes a line formed by the smooth connection of multiple straight lines and multiple curved lines.

[0028] The beneficial effects of this utility model are: the dividing line is a broken line, a curve, a straight line set at an angle to the radial plane of the cup-shaped grinding wheel, or a straight line set at an angle to the radial plane of the peripheral grinding wheel. This makes it easier to make the dividing line a straight line that is not parallel to the reference plane of the cup-shaped grinding wheel base, or a straight line that is not parallel to the central axis of the peripheral grinding wheel. This disperses the stress generated on the dividing line when the grinding wheel is working, and avoids the elastic grinding parts from breaking at the dividing line due to stress concentration, thus preventing the grinding wheel from failing.

[0029] like Figures 1 to 5 As shown, this embodiment also provides an elastic grinding wheel, including multiple of the above-mentioned separating support blocks 1, multiple elastic grinding elements 2 and a grinding wheel base 3. The multiple separating support blocks 1 and the multiple elastic grinding elements 2 alternately abut against each other in the circumferential direction to form a grinding ring fixedly installed on the grinding wheel base 3.

[0030] The beneficial effects of this utility model are: it helps to disperse the stress generated at the boundary line formed by the contact between the separating support block and the elastic grinding part when the grinding wheel is working, and avoids the elastic grinding part from breaking at the boundary line due to stress concentration, thereby causing the grinding wheel to fail.

[0031] Preferred, such as Figure 1 As shown, the grinding ring is fixedly installed on the end face of the grinding wheel base 3 to form a cup-shaped grinding wheel.

[0032] The beneficial effect of adopting the above-mentioned preferred scheme is that it helps the partition support block in the cup-shaped grinding wheel to play the role of stress decomposition.

[0033] Preferred, such as Figure 4 As shown, the grinding ring is fixedly installed on the outer peripheral surface of the grinding wheel base 3 to form a peripheral grinding wheel.

[0034] The beneficial effect of adopting the above-mentioned preferred scheme is that it helps the partition support blocks in the peripheral grinding wheel to play a role in decomposing stress.

[0035] Preferred, such as Figure 1 and Figure 4 As shown, a fixing groove 31 is provided on the end face of the grinding wheel base 3. The fixing groove 31 is an annular groove. One end of the separating support block 1 and one end of the elastic grinding element 2 are adapted to and fixedly installed in the fixing groove 31.

[0036] The advantages of adopting the above preferred solution are: the fixing groove helps to fix one end of the partition support block and one end of the elastic grinding part to the end face or outer peripheral face of the grinding wheel base, thereby forming a cup-shaped grinding wheel or a peripheral grinding wheel.

[0037] Preferred, such as Figures 5 to 7 As shown, the elastic grinding component 2 includes an elastic substrate 21 and a grinding layer 22 fixed on the circumferential sidewall of the elastic substrate 21. One end of the elastic substrate 21 is fixedly connected to the grinding wheel base 3, and the support surface 11 of the partition support block 1 is in contact with the circumferential sidewall of the elastic substrate 21.

[0038] It should be noted that in this embodiment, the material hardness of the separating support block 1 is lower than that of the elastic substrate 21. The material of the separating support block 1 is a metal material or an organic engineering material, and the material of the elastic substrate 21 is spring steel.

[0039] The advantages of adopting the above-mentioned preferred solution are: the elastic substrate helps the grinding wheel to form elastic grinding, and the rigid impact grinding is buffered by elastic deformation, which reduces the risk of damage to the grinding wheel and the workpiece and improves the safety of the grinding process.

[0040] Preferred, such as Figure 5As shown, the elastic substrate 21 includes: a mounting section 211, an elastic transition section 212, and a working section 213. The mounting section 211 and the working section 213 are fixedly mounted at both ends of the elastic transition section 212 in a one-to-one correspondence. The grinding layer 22 is fixed on the circumferential sidewall of the working section 213. The mounting section 211 is fixedly mounted on the grinding wheel base 3. The support surface 11 is adapted to fit the mounting section 211, so that the dividing line 12 on the support surface 11 is the boundary between the mounting section 211 and the elastic transition section 212.

[0041] It should be noted that in this embodiment, the mounting section 211 is adapted to and fixedly installed in the fixing groove 31; "The support surface 11 is adapted and fitted to the mounting section 211" means that the shape and size of the support surface 11 are the same as the shape and size of the mounting section 211. In other words, when the partition support block 1 abuts against the elastic substrate 21, the support surface 11 on the partition support block 1 exactly overlaps with the mounting section 211 circumferentially. At this time, the overlapping part on the elastic substrate 21 is the mounting section 211, and the boundary between the mounting section 211 and the elastic transition section 212 is the dividing line 12 on the support surface 11.

[0042] The advantages of adopting the above-mentioned preferred solution are: it helps to buffer the rigid impact of the grinding layer through the elastic deformation of the elastic transition section, thereby reducing the risk of damage to the grinding wheel and workpiece and improving the safety of the grinding process.

[0043] Preferred, such as Figure 8 As shown, the grinding layer 22 includes a plurality of diamond particles 221 and a binder 222, and the plurality of diamond particles 221 are circumferentially fixed to the circumferential sidewall of the working section 213 by the binder 222 in a single layer.

[0044] The advantages of adopting the above-mentioned preferred solution are: the diamond particles are arranged in a single layer in the binder, which is conducive to achieving the effect of grinding, cooling and chip removal at the same time, realizing rapid chip removal and instant cooling, which can significantly reduce the friction and frictional heat generated between the powder and the workpiece, and reduce the processing load.

[0045] like Figure 9 and Figure 10 As shown, this utility model also provides another embodiment: the elastic grinding part 2 is wrapped with an injection molded part 4, and multiple injection molded parts 4 are circumferentially abutted to form a grinding ring fixedly installed on the grinding wheel base 3. Two adjacent injection molded parts 4 abut against each other and play a separating and supporting role.

[0046] It should be noted that, in another embodiment, for each elastic grinding part 2, the injection molded part 4 is wrapped around the mounting section 211 of the elastic grinding part 2. The injection molded part 4 is adapted and fixedly installed in the fixing groove 31. Multiple injection molded parts 4 circumferentially abut to form a grinding ring. There is no longer a separating support block 1 in the grinding ring. At this time, two adjacent injection molded parts 4 in the grinding ring abut to each other, and the two adjacent injection molded parts 4 act as separating support blocks 1. The dividing line formed between the injection molded part 4 and the elastic grinding part 2 is a broken line, a curve, a straight line set at an angle to the radial plane of the cup-shaped grinding wheel, or a straight line set at an angle to the radial plane of the peripheral grinding wheel. The boundary line between the mounting section 211 and the elastic transition section 212 is the dividing line. The injection molded part 4 is made of thermoplastic material.

[0047] The advantages of adopting the above preferred scheme are: it helps to utilize the elasticity of thermoplastic materials to buffer the stress state of the elastic grinding parts and decompose the stress at the boundary line.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A partition support block, characterized in that, include: Two opposing support surfaces (11) are provided, and the two support surfaces (11) correspond one-to-one with two circumferentially adjacent elastic grinding parts (2). A dividing line (12) is formed on the support surface (11) to separate the elastic grinding parts (2). The dividing line (12) is a broken line, a curve, a straight line at an angle to the radial plane of the cup-shaped grinding wheel, or a straight line at an angle to the radial plane of the peripheral grinding wheel.

2. A flexible grinding wheel for combining grinding parts, characterized in that, It includes multiple partition support blocks (1) as described in claim 1 above, multiple elastic grinding elements (2) and a grinding wheel base (3), wherein the multiple partition support blocks (1) and the multiple elastic grinding elements (2) are alternately abutted circumferentially to form a grinding ring fixedly installed on the grinding wheel base (3).

3. The elastic grinding wheel for combining grinding parts according to claim 2, characterized in that, The grinding ring is fixedly installed on the end face of the grinding wheel base (3) to form a cup-shaped grinding wheel.

4. The elastic grinding wheel for combining grinding parts according to claim 2, characterized in that, The grinding ring is fixedly installed on the outer circumferential surface of the grinding wheel base (3) to form a peripheral grinding wheel.

5. The elastic grinding wheel for combining grinding parts according to claim 2 or 3, characterized in that, The grinding wheel base (3) has a fixing groove (31) on its end face. The fixing groove (31) is an annular groove. One end of the separating support block (1) and one end of the elastic grinding part (2) are adapted to and fixedly installed in the fixing groove (31).

6. The elastic grinding wheel for combining grinding parts according to claim 2, characterized in that, The elastic grinding component (2) includes an elastic substrate (21) and a grinding layer (22) fixed on the circumferential sidewall of the elastic substrate (21). One end of the elastic substrate (21) is fixedly connected to the grinding wheel base (3), and the support surface (11) of the partition support block (1) is in contact with the circumferential sidewall of the elastic substrate (21).

7. The elastic grinding wheel for combining grinding parts according to claim 6, characterized in that, The elastic substrate (21) includes: a mounting section (211), an elastic transition section (212), and a working section (213). The mounting section (211) and the working section (213) are fixedly mounted at both ends of the elastic transition section (212) in a one-to-one correspondence. The grinding layer (22) is fixed on the circumferential sidewall of the working section (213). The mounting section (211) is fixedly mounted on the grinding wheel base (3). The support surface (11) is adapted to fit the mounting section (211) so that the dividing line (12) on the support surface (11) is the boundary between the mounting section (211) and the elastic transition section (212).

8. The elastic grinding wheel for combining grinding parts according to claim 7, characterized in that, The grinding layer (22) includes a plurality of diamond particles (221) and a binder (222), wherein the plurality of diamond particles (221) are circumferentially monolayered and fixed on the circumferential sidewall of the working section (213) by the binder (222).

9. The elastic grinding wheel for combining grinding parts according to claim 2, characterized in that, The elastic grinding part (2) is wrapped with an injection molded part (4). Multiple injection molded parts (4) abut circumferentially to form a grinding ring fixedly installed on the grinding wheel base (3). Two adjacent injection molded parts (4) abut against each other and serve as a separation and support function.

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