Diamond grinding wheel with good heat dissipation performance

Abstract

The utility model relates to the technical field of diamond grinding wheels, in particular to a diamond grinding wheel with good heat dissipation performance. According to the technical scheme, the grinding wheel disc comprises a metal disc body and a grinding wheel disc body, the grinding wheel disc body is fixed to the periphery of the metal disc body, a rotating shaft mounting hole is formed in the center of the metal disc body, tooth grooves are formed in the outer surface of the grinding wheel disc body at equal intervals, and graphite filling blocks are fixed in the tooth grooves; the two sides of the metal disc are rotationally connected with annular sleeves, external water pipe connectors are fixed to the outer sides of the annular sleeves, water passing assemblies are arranged between the annular sleeves and the side wall of the metal disc, and flow guide plates are fixed in the cavity and fixed to the inner side wall of the cavity in a staggered mode. According to the tooth-shaped grinding wheel, on the basis that graphite is used as a partition to reinforce heat dissipation, an internal water cooling structure is further arranged, so that heat can be rapidly discharged, rapid cooling of the grinding wheel is achieved, meanwhile, the graphite can play a role in supporting and lubricating, and the defects of machined workpieces are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond grinding wheels, in particular to a diamond grinding wheel with good heat dissipation performance. Background Art

[0002] The diamond grinding wheel is a tool used for grinding, dressing and processing various materials, especially for hard materials. It achieves the purpose of grinding and dressing mainly through its own rotation and rapid friction with the workpiece surface.

[0003] Common diamond grinding wheels are divided into full-ring grinding wheels and toothed grinding wheels. During the working process of the grinding wheel, a large amount of heat is generated due to the high-speed friction between the grinding wheel and the workpiece. Among them, the heat dissipation performance of the full-ring grinding wheel is poor, the grinding amount of the grinding wheel is small, and the sharpness is poor, while the toothed grinding tool is prone to edge and corner collapse problems. In addition, during the working process, the common grinding wheel only relies on air heat dissipation, and its heat dissipation efficiency is relatively slow. To address the above problems, it is necessary to design a diamond grinding wheel with good heat dissipation effect. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and to provide a diamond grinding wheel with good heat dissipation performance.

[0005] The technical solution of the utility model is as follows: a diamond grinding wheel with good heat dissipation performance comprises a metal disc and a grinding wheel disc, wherein the grinding wheel disc is fixed on the periphery of the metal disc, a rotating shaft mounting hole is opened at the center position of the metal disc, tooth grooves are opened at equal intervals on the outer surface of the grinding wheel disc, graphite filling blocks are fixed in the tooth grooves, a cavity is arranged in the metal disc, annular sleeves are rotatably connected on both sides of the metal disc, an external water pipe interface is fixed on the outer side of the annular sleeve, a water inlet pipe and a water outlet pipe in the working process are connected by the external water pipe interface, a water-passing component is arranged between the annular sleeve and the side wall of the metal disc, a guide plate is fixed in the cavity, and the guide plate is staggered and fixed on the inner side wall of the cavity, so as to increase the flow distance of water cooling in the cavity and achieve the purpose of fully absorbing heat, the water-passing component comprises an annular groove, a connecting hole and a guide hole, the annular groove is opened on the outer side wall of the metal disc and its position is aligned with the annular sleeve, the connecting hole is opened on the inner side wall of the annular groove, and the guide hole is opened in the annular sleeve and its position is aligned with the external water pipe interface.

[0006] Preferably, limiting frames are fixed on both sides of the metal disk and located outside the annular sleeve, and the annular sleeve is rotatably connected in the limiting frames to ensure that the annular sleeve rotates stably outside the metal disk.

[0007] Preferably, a sealing gasket is fixed to the side of the annular sleeve close to the metal disk, and the sealing gasket abuts against the outer wall of the metal disk to reduce the risk of cooling water leakage.

[0008] Preferably, drainage holes are provided on both sides of the metal plate and aligned with the periphery of the cavity, and sealing plugs are clamped in the drainage holes to drain the remaining water in the cavity after the processing is completed.

[0009] Compared with the prior art, the utility model has the following beneficial technical effects: the toothed grinding wheel is provided with an internal water cooling structure on the basis of using graphite as a partition to enhance heat dissipation, so that heat can be quickly discharged to achieve rapid cooling of the grinding wheel. At the same time, graphite can also play a supporting and lubricating role to reduce the defects of the workpiece being processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the front appearance structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the side cutaway structure of the utility model;

[0012] Figure 3 This is a schematic diagram of the internal structure of the metal plate of the utility model;

[0013] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0014] Figure numerals: 1. metal plate; 11. shaft mounting hole; 12. cavity; 13. guide plate; 14. drainage hole; 15. annular groove; 16. connecting hole; 2. grinding wheel; 21. tooth groove; 22. graphite filling block; 3. annular sleeve; 31. guide hole; 32. sealing gasket; 33. limit frame; 34. external water pipe interface. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Example

[0017] like Figure 1-4 As shown, the utility model proposes a diamond grinding wheel with good heat dissipation performance, including a metal disc 1 and a grinding wheel disc 2, the grinding wheel disc 2 is fixed on the periphery of the metal disc 1, a shaft mounting hole 11 is opened at the center of the metal disc 1, and tooth grooves 21 are equidistantly opened on the outer surface of the grinding wheel disc 2, graphite filling blocks 22 are fixed in the tooth grooves 21, a cavity 12 is arranged in the metal disc 1, an annular sleeve 3 is rotatably connected on both sides of the metal disc 1, an external water pipe interface 34 is fixed on the outside of the annular sleeve 3, a water passing component is arranged between the annular sleeve 3 and the side wall of the metal disc 1, a guide plate 13 is fixed in the cavity 12, and the guide plate 13 is staggered and fixed on the inner wall of the cavity 12.

[0018] The water-passing assembly includes an annular groove 15, a connecting hole 16 and a guide hole 31. The annular groove 15 is provided on the outer wall of the metal plate 1 and is aligned with the annular sleeve 3. The connecting hole 16 is provided on the inner wall of the annular groove 15. The guide hole 31 is provided in the annular sleeve 3 and is aligned with the external water pipe interface 34. The metal plate 1 is fixed with a limiting frame 33 on both sides and located outside the annular sleeve 3. The annular sleeve 3 is rotatably connected in the limiting frame 33. A sealing gasket 32 ​​is fixed on the side of the annular sleeve 3 close to the metal plate 1. The sealing gasket 32 ​​is connected to the metal plate 1. The outer wall of the metal plate 1 is abutted, and drainage holes 14 are opened on both sides of the metal plate 1 and aligned with the outer periphery of the cavity 12. A sealing plug is clamped in the drainage hole 14. The cooling water of the water inlet pipe enters the annular groove 15 through the guide hole 31, and then enters the cavity 12 through the connecting hole 16. No matter how the metal plate 1 rotates, its cooling water can also freely enter and exit the cavity 12 to achieve a continuous cooling effect. After the operation is completed, the sealing plug can be opened to discharge the remaining water in the cavity 12.

[0019] In this embodiment, when the entire grinding wheel rotates at high speed to process the workpiece, the graphite filling block 22 embedded in the tooth groove 21 can play a supporting and lubricating role, reduce the defects of the workpiece being processed, and before processing, the external water pipe interface 34 on the annular sleeve 3 is connected to the water inlet pipe and the water outlet pipe respectively, wherein the water inlet pipe injects cooling water into the cavity 12, and the water flows through the guide plate 13 in the cavity 12, absorbs a large amount of heat, and then flows out from the water outlet pipe. The use of water cooling can achieve a good heat dissipation function. In this process, since the annular sleeve 3 is rotatably connected to both sides of the metal disk 1, the cooling water of the water inlet pipe enters the annular groove 15 through the guide hole 31, and then enters the cavity 12 through the connecting hole 16. No matter how the metal disk 1 rotates, its cooling water can also freely enter and exit the cavity 12 to achieve a continuous cooling effect, and after the operation is completed, the sealing plug can be opened to discharge the remaining water in the cavity 12 to avoid rapid internal corrosion caused by accumulated water.

[0020] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A diamond grinding wheel with good heat dissipation performance, comprising a metal disc (1) and a grinding wheel disc (2), characterized in that: The grinding wheel (2) is fixed on the periphery of the metal disk (1); a rotating shaft mounting hole (11) is provided at the center of the metal disk (1); tooth grooves (21) are provided at equal intervals on the outer surface of the grinding wheel (2); graphite filling blocks (22) are fixed in the tooth grooves (21); a cavity (12) is provided in the metal disk (1); an annular sleeve (3) is rotatably connected to both sides of the metal disk (1); an external water pipe interface (34) is fixed on the outer side of the annular sleeve (3); a water-passing component is provided between the annular sleeve (3) and the side wall of the metal disk (1); a guide plate (13) is fixed in the cavity (12), and the guide plate (13) is fixed on the inner wall of the cavity (12) in a staggered manner; The water-passing assembly comprises an annular groove (15), a connecting hole (16) and a guide hole (31); the annular groove (15) is provided on the outer wall of the metal plate (1) and is aligned with the annular sleeve (3); the connecting hole (16) is provided on the inner wall of the annular groove (15); and the guide hole (31) is provided in the annular sleeve (3) and is aligned with an external water pipe interface (34).

2. A diamond grinding wheel with good heat dissipation performance according to claim 1, characterized in that: Limiting frames (33) are fixed on both sides of the metal plate (1) and located outside the annular sleeve (3), and the annular sleeve (3) is rotatably connected in the limiting frames (33).

3. A diamond grinding wheel with good heat dissipation performance according to claim 1, characterized in that: A sealing gasket (32) is fixed on one side of the annular sleeve (3) close to the metal disk (1), and the sealing gasket (32) abuts against the outer wall of the metal disk (1).

4. The diamond grinding wheel with good heat dissipation performance according to claim 1, characterized in that: Drain holes (14) are provided on both sides of the metal plate (1) and aligned with the periphery of the cavity (12), and sealing plugs are clamped in the drainage holes (14).

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