Grinding wheel bar and grinding equipment

Abstract

The grinding wheel rod comprises a cutter bar body and a grinding disc body, the grinding disc body is provided with a grinding end face, a connecting end face and a forming side face, the grinding end face and the connecting end face are oppositely arranged, the forming side face is arranged between the grinding end face and the connecting end face, the connecting end face is connected with the cutter bar body, and the grinding disc body is further provided with a first hole channel and a second hole channel. The first hole channel forms a first opening in the middle of the grinding end face, the second hole channel forms a second opening in the connecting end face and / or the forming side face, the second hole channel is communicated with the first hole channel, the grinding end face is a continuous grinding plane arranged around the first opening, and cooling liquid can enter and exit the grinding disc body from the second hole channel and the first hole channel which are communicated. The first opening is formed in the grinding end face, so that the chip removal and cooling effects are achieved, a grooving structure on the periphery of the grinding end face in the prior art can be omitted, the grinding end face is arranged to be a continuous grinding plane surrounding the first opening, the situation that the sand plating quality is affected by sharp corners is avoided, and the purpose of improving the product machining quality is achieved.

Description

Grinding wheels and grinding equipment Technical Field

[0001] This utility model belongs to the field of grinding technology, specifically relating to a grinding wheel and grinding equipment. Background Technology

[0002] To meet people's demands for personalized appearance and slimmer, lighter electronic products, many electronic products feature recessed designs on their glass covers. This allows for the placement of more components within a limited space, resulting in a more refined appearance and increased product recognizability. To ensure the quality of the recessed processing, the structural design of the grinding wheel used to create these recesses is particularly important.

[0003] As shown in Figure 1, the existing grinding wheel bar for machining grooves has grooves around the grinding surface at the top. However, grooving around the grooves will result in poor sand coating quality at the sharp corners of the grooves, and the surface roughness of the machined product will be poor, affecting the product processing quality. Summary of the Invention

[0004] To address the aforementioned defects or deficiencies, this utility model provides a grinding wheel and grinding equipment, aiming to solve the technical problem that the existing grinding wheel structure, due to the grooves around its perimeter, results in poor abrasive plating quality at the sharp corners of the grooves, thus affecting product processing quality.

[0005] To achieve the above objectives, the first aspect of this utility model provides a grinding wheel, wherein the grinding wheel includes a tool holder body and a grinding disc body; the grinding disc body has a grinding end face and a connecting end face disposed opposite to each other, and a shaped side face disposed between the grinding end face and the connecting end face, the connecting end face being connected to the tool holder body, and the grinding disc body also having a first channel and a second channel, the first channel having a first opening formed in the middle of the grinding end face, the second channel having a second opening formed on both the connecting end face and / or the shaped side face, the second channel communicating with the first channel; the grinding end face is a continuous grinding plane disposed around the first opening.

[0006] In one embodiment of this utility model, the number of second channels is at least two, and the at least two second channels are arranged sequentially at intervals along the direction surrounding the tool holder body, and each of them is connected to the first channel.

[0007] In one embodiment of the present invention, the first channel extends axially from the first opening along the grinding disc body, the second opening is located at the connection between the connecting end face and the forming side face, and has an end face opening on the connecting end face and a side face opening on the forming side face, the side face opening being radially connected to the first channel.

[0008] In one embodiment of the present invention, the diameter of the first channel is greater than the radial dimension from the central axis of the first channel to the inner periphery of the end face opening.

[0009] In one embodiment of the present invention, the orthographic projection shape of the end face opening of the second opening is set as a fan shape, and the inner arc edge and the outer arc edge of the fan shape are arranged alternately from the inside to the outside along the radial direction of the connecting end face.

[0010] In one embodiment of this utility model, the first waist edge of the end face opening is provided as a stop straight edge, and the second waist edge is provided as a guide arc edge, with the end of the guide arc edge near the forming side edge bent away from the first waist edge.

[0011] In one embodiment of this utility model, the total area of ​​all end face openings on the connecting end face accounts for 50% to 80% of the total area of ​​the connecting end face.

[0012] In one embodiment of this utility model, the total area of ​​all side openings on the formed side accounts for 20% to 80%, or 50% to 65% of the total area of ​​the formed side.

[0013] In one embodiment of this utility model, the ratio of the height of the side opening to the total height of the formed side is 0.5 to 0.8.

[0014] In one embodiment of the present invention, a sand-isolating groove is provided on the forming side, and a sand-plating layer is provided on the grinding wheel bar. The sand-plating layer includes an end-face sand-plating layer provided on the grinding end face and a side-face sand-plating layer provided on the forming side, with the side-face sand-plating layer located between the sand-isolating groove and the grinding end face.

[0015] In one embodiment of this utility model, the grinding wheel rod is designed as an integrally molded part.

[0016] To achieve the above objectives, a second aspect of this utility model provides a grinding device, wherein the grinding device includes a device body and a grinding wheel bar as described above, and the grinding wheel bar can be mounted on the device body via a tool holder body.

[0017] Through the above technical solution, the grinding wheel provided in this utility model embodiment has the following beneficial effects:

[0018] When using the aforementioned grinding wheel, the first channel of the grinding disc forms a first opening in the middle of the grinding end face, and the second channel forms a second opening on both the connecting end face and / or the forming side face. The second channel communicates with the first channel, allowing coolant to enter and exit the grinding disc through the connected second channel and the first channel, thereby achieving chip removal and cooling. This eliminates the need for the grooved structure around the grinding end face in the prior art, allowing the grinding end face to be set as a continuous grinding plane surrounding the first opening. Consequently, there will be no sharp corners affecting the sand coating quality, thus achieving the goal of improving product processing quality.

[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0021] Figure 1 is a schematic diagram of the structure of a grinding wheel in the prior art;

[0022] Figure 2 is a schematic diagram of the structure of the grinding wheel according to the first embodiment of the present invention;

[0023] Figure 3 is a cross-sectional structural diagram of the grinding wheel bar according to the first embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of the orthographic projection of the grinding wheel rod according to the first embodiment of the present invention;

[0025] Figure 5 is a structural schematic diagram of the grinding wheel rod from one perspective according to the second embodiment of the present invention;

[0026] Figure 6 is a structural schematic diagram of the grinding wheel rod from another perspective according to the second embodiment of the present invention;

[0027] Figure 7 is a schematic diagram of the orthographic projection of the grinding wheel rod according to the second embodiment of the present invention;

[0028] Figure 8 is a structural schematic diagram of the grinding wheel rod from one perspective according to the third embodiment of the present invention;

[0029] Figure 9 is a structural schematic diagram of the grinding wheel rod from another perspective according to the third embodiment of the present invention;

[0030] Figure 10 is a schematic diagram of the orthographic projection of the grinding wheel rod according to the third embodiment of the present invention;

[0031] Figure 11 is a structural schematic diagram of the grinding wheel rod from one perspective according to the fourth embodiment of the present invention;

[0032] Figure 12 is a structural schematic diagram of the grinding wheel rod from another perspective according to the fourth embodiment of the present invention;

[0033] Figure 13 is a schematic diagram of the orthographic projection of the grinding wheel rod according to the fourth embodiment of the present invention;

[0034] Figure 14 is a structural schematic diagram of the grinding wheel rod from one perspective according to the fifth embodiment of the present invention;

[0035] Figure 15 is a structural schematic diagram of the grinding wheel rod from another perspective according to the fifth embodiment of the present utility model;

[0036] Figure 16 is a schematic diagram of the orthographic projection of the grinding wheel rod according to the fifth embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures

[0038] 100 Tool holder body 200 Grinding disc body

[0039] 210 Grinding end face; 211 Connecting end face

[0040] 212 Formed side surface 220 First opening

[0041] 230 Second opening 231 End face opening

[0042] 232 Side opening 233 Inner curved edge

[0043] 234 Outer arc edge 235 First waist edge

[0044] 236 Second waistline 240 Sand-separating groove Detailed Implementation

[0045] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0046] The grinding wheel and grinding equipment of this utility model are described below with reference to the accompanying drawings.

[0047] As shown in Figures 2 to 4, this utility model provides a grinding wheel rod, wherein the grinding wheel rod includes:

[0048] Tool holder body 100;

[0049] The grinding disc 200 has a grinding end face 210 and a connecting end face 211 disposed opposite to each other, and a forming side face 212 disposed between the grinding end face 210 and the connecting end face 211. The connecting end face 211 is connected to the tool holder body 100. The grinding disc 200 also has a first channel and a second channel. The first channel has a first opening 220 formed in the middle of the grinding end face 210. The second channel has a second opening 230 formed on both the connecting end face 211 and / or the forming side face 212. The second channel communicates with the first channel.

[0050] The grinding end face 210 is a continuous grinding plane surrounding the first opening 220.

[0051] When the aforementioned grinding wheel is used, the first channel of the grinding disc 200 forms a first opening 220 in the middle of the grinding end face 210, and the second channel forms a second opening 230 on the connecting end face 211 and / or the forming side face 212. The second channel communicates with the first channel, allowing coolant to enter and exit the grinding disc 200 through the connected second channel and the first channel, thereby playing a role in chip removal and cooling. This eliminates the need for the grooved structure around the grinding end face 210 in the prior art, and sets the grinding end face 210 as a continuous grinding plane surrounding the first opening 220. Consequently, there will be no sharp corners affecting the sand coating quality, thus achieving the purpose of improving the product processing quality.

[0052] Specifically, to ensure dynamic balance, the central axes of the tool holder body 100, the grinding disc body 200, and the first channel can be located on the same straight line. Meanwhile, the second opening 230 of the second channel can be located only on the connecting end face 211, only on the forming side face 212, or it can extend across the connection between the connecting end face 211 and the forming side face 212, extending to both the connecting end face 211 and the forming side face 212. The end of the second channel away from the second opening 230 and the end of the first channel away from the first opening 220 are connected inside the grinding disc body 200.

[0053] In addition, the grinding end face 210 is set as a continuous grinding plane, which can be understood as the grinding end face 210 being fully enclosed in the circumferential direction along the first opening 220 and located in the same plane, so that the grinding end face 210 does not have any sharp corner positions.

[0054] In one embodiment of this invention, the number of second channels can be at least two. These at least two second channels are sequentially spaced along the direction surrounding the tool holder body 100 and are each connected to a first channel. This allows coolant to enter the first channel from at least one second channel and flow to the first opening 220 located in the center of the grinding end face 210. When the first channel is full of coolant, as the grinding wheel rotates, the coolant can flow out from the remaining second channels. This circulation of coolant accelerates the flow of coolant, thereby improving the chip removal rate and cooling rate.

[0055] Specifically, in the first embodiment shown in Figures 2 to 4, the number of second channels is three, and the three second channels are arranged in a sequentially spaced and evenly distributed manner around the tool holder body 100; in the second embodiment shown in Figures 5 to 7, the number of second channels is two, and the two second channels are arranged in a sequentially spaced and evenly distributed manner around the tool holder body 100; in the third embodiment shown in Figures 8 to 10, the number of second channels is four, and the four second channels are arranged in a sequentially spaced and evenly distributed manner around the tool holder body 100; in the fourth embodiment shown in Figures 11 to 13, the number of second channels is five, and the five second channels are arranged in a sequentially spaced and evenly distributed manner around the tool holder body 100; in the fifth embodiment shown in Figures 14 to 16, the number of second channels is six, and the six second channels are arranged in a sequentially spaced and evenly distributed manner around the tool holder body 100.

[0056] In one embodiment of this utility model, a first channel extends axially from a first opening 220 along the grinding disc body 200. A second opening 230 is located at the connection between the connecting end face 211 and the forming side face 212, and has an end face opening 231 on the connecting end face 211 and a side opening 232 on the forming side face 212. The side opening 232 is radially connected to the first channel. That is, in this utility model, the second opening 230 of the second channel is preferably arranged across the connection between the connecting end face 211 and the forming side face 212, so that a second opening 230 is provided in different directions, which increases the area of ​​the second opening 230 and facilitates the entry and exit of coolant. The cooling pipe for spraying coolant on the grinding equipment can be adjusted to be aligned with the end face opening 231, aligned with the side opening 232, or aligned with the junction of the end face opening 231 and the side opening 232.

[0057] In one embodiment of this utility model, the diameter of the first channel is greater than the radial dimension from the central axis of the first channel to the inner periphery of the end face opening 231, thereby creating a radial overlap area between the first channel and the end face opening 231, which allows the coolant to flow more quickly between the first channel and the end face opening 231. It should be noted that the inner periphery of the end face opening 231 is the periphery of the end face opening 231 located near the tool holder body 100.

[0058] In one embodiment of this utility model, the orthographic projection shape of the end face opening 231 of the second opening 230 is set as a fan shape, and the inner arc edge 233 and the outer arc edge 234 of the fan shape are arranged alternately from the inside to the outside along the radial direction of the connecting end face 211. Setting the end face opening 231 as a fan shape can be adapted to the design of the connecting end face 211 as an annular shape surrounding the tool holder body 100, so as to increase the area of ​​the end face opening 231 while ensuring strength. It should be noted that setting the end face opening 231 as a fan shape does not mean that it is strictly equivalent. As long as it is approximately fan-shaped, or slightly modified on the basis of fan shape, it should also fall within the protection scope of this utility model.

[0059] In one embodiment of this utility model, the first waist edge 235 of the end face opening 231 is provided as a stop straight edge, and the second waist edge 236 is provided as a flow-guiding arc edge. The end of the flow-guiding arc edge near the forming side 212 is bent away from the first waist edge 235. Specifically, when the rotation direction of the grinding wheel is set to be the same as the direction from the second waist edge 236 to the first waist edge 235 within the same end face opening 231, the second waist edge 236 is provided as a flow-guiding arc edge, allowing the coolant to enter the second opening 230 more fully. By providing the first waist edge 235 as a stop straight edge, the coolant entering the second opening 230 is stopped, preventing it from flowing out, thus allowing the coolant to flow fully into the first channel. More specifically, when the direction from the second waist edge 236 to the first waist edge 235 within the same end face opening 231 in this utility model is clockwise, the rotation direction of the grinding wheel can be clockwise, or both directions can be counterclockwise.

[0060] In one embodiment of this utility model, the total area of ​​all end face openings 231 on the connecting end face 211 accounts for 50% to 80% of the total area of ​​the connecting end face 211, so as to ensure both liquid inflow and structural strength at the same time.

[0061] In one embodiment of this utility model, the total area of ​​all side openings 232 on the formed side 212 accounts for 20% to 80%, or 50% to 60% of the total area of ​​the formed side 212. The proportion of the side openings 232 can be adjusted adaptively. A larger opening results in better cooling effect and less impact on the structural strength itself. For example, the total area of ​​all side openings 232 can be set to account for 20% to 80% of the total area of ​​the formed side 212. Preferably, the total area of ​​the side openings 232 can be set to account for 50% to 65% of the total area of ​​the formed side 212 to ensure better cooling effect and structural strength.

[0062] In one embodiment of this utility model, the ratio of the height of the side opening 232 to the total height of the formed side 212 is 0.5 to 0.8, which can ensure that more coolant enters the center of the grinding wheel while also making the grinding wheel more rigid.

[0063] In one embodiment of this utility model, a sand-isolating groove 240 is further provided on the forming side 212, and a sand-plating layer is further provided on the grinding wheel. The sand-plating layer includes an end-face sand-plating layer provided on the grinding end face 210 and a side-face sand-plating layer provided on the forming side 212, with the side-face sand-plating layer located between the sand-isolating groove 240 and the grinding end face 210. That is, by adding the sand-isolating groove 240, it is convenient to perform the sand-plating operation of the side-face sand-plating layer. Specifically, the sand-isolating groove 240 can be opened first, and then sand-plating can be performed. When sand-plating the forming side 212, the forming side 212 between the sand-isolating groove 240 and the grinding end face 210 can be sand-plated globally.

[0064] In one embodiment of this utility model, the grinding wheel is designed as a one-piece molded part to ensure structural strength and reliability. Specifically, the grinding wheel may be made of free-machining iron, among other things.

[0065] Furthermore, this utility model also provides a grinding device, which includes a device body and a grinding wheel as described above. The grinding wheel can be mounted on the device body via a tool holder 100. Since the grinding device adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0066] In the description of this utility model, it should be understood that 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. Therefore, 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, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] 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, an electrical connection, or a connection that allows communication between them; 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.

[0068] 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.

[0069] 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 grinding wheel rod, characterized in that, The grinding wheel includes: a tool holder body (100); a grinding disc body (200) having a grinding end face (210) and a connecting end face (211) disposed opposite to each other, and a forming side surface (212) disposed between the grinding end face (210) and the connecting end face (211). The connecting end face (211) is connected to the tool holder body (100). The grinding disc body (200) also has a first channel and a second channel. The first channel forms a first opening (220) in the middle of the grinding end face (210). The second channel forms a second opening (230) in both the connecting end face (211) and / or the forming side surface (212). The second channel communicates with the first channel. The grinding end face (210) is a continuous grinding plane disposed around the first opening (220).

2. The grinding wheel according to claim 1, characterized in that, The number of the second channel is at least two, and the at least two second channels are arranged at intervals along the direction surrounding the tool holder body (100), and each of them is connected to the first channel.

3. The grinding wheel according to claim 1 or 2, characterized in that, The first channel extends axially from the first opening (220) along the grinding disc body (200). The second opening (230) is located at the connection between the connecting end face (211) and the forming side face (212), and has an end face opening (231) on the connecting end face (211) and a side opening (232) on the forming side face (212). The side opening (232) is radially connected to the first channel.

4. The grinding wheel according to claim 3, characterized in that, The diameter of the first channel is greater than the radial dimension from the central axis of the first channel to the inner periphery of the end face opening (231).

5. The grinding wheel according to claim 3, characterized in that, The orthographic projection shape of the end face opening (231) of the second opening (230) is set as a fan shape, and the inner arc edge (233) and outer arc edge (234) of the fan shape are arranged alternately from the inside to the outside along the radial direction of the connecting end face (211); and / or, the first waist edge (235) of the end face opening (231) is set as a stop straight edge, and the second waist edge (236) is set as a guide arc edge, and the end of the guide arc edge near the forming side surface (212) is bent away from the first waist edge (235).

6. The grinding wheel according to claim 3, characterized in that, The total area of ​​all end face openings (231) on the connecting end face (211) accounts for 50% to 80% of the total area of ​​the connecting end face (211); and / or, the total area of ​​all side openings (232) on the shaped side face (212) accounts for 20% to 80%, or 50% to 65% of the total area of ​​the shaped side face (212).

7. The grinding wheel according to claim 3, characterized in that, The ratio of the height of the side opening (232) to the total height of the shaped side surface (212) is 0.5 to 0.

8.

8. The grinding wheel according to claim 1, characterized in that, The forming side (212) is also provided with a sand-isolating groove (240), and the grinding wheel is also provided with a sand-plating layer. The sand-plating layer includes an end face sand-plating layer provided on the grinding end face (210) and a side face sand-plating layer provided on the forming side (212). The side face sand-plating layer is located between the sand-isolating groove (240) and the grinding end face (210).

9. The grinding wheel according to claim 1, characterized in that, The grinding wheel is designed as a one-piece molded part.

10. A grinding device, characterized in that, The grinding equipment includes a main body and a grinding wheel according to any one of claims 1 to 9, wherein the grinding wheel can be mounted on the main body via the tool holder body (100).

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