Low density resinoid grinding wheel

Abstract

The utility model discloses a low density resin grinding wheel belongs to resin grinding wheel technical field, including the core, the front and back of core are provided with buckle cover no.

Description

Technical Field

[0001] This utility model belongs to the field of resin grinding wheel technology, and specifically relates to a low-density resin grinding wheel. Background Technology

[0002] Resin grinding wheels are made by adding resin materials to abrasives. They are suitable for high-strength, heavy-duty grinding environments and have the characteristics of certain elasticity, low heat resistance, and good self-sharpening properties.

[0003] According to the patent announcement number CN221871674U, a low-density resin grinding wheel for grinding soft metals is a known prior art. Although the patent has low-density wear-resistant particles to achieve good grinding, the technical solution of the patent still has the following defects in actual use: the patent uses a simple two-layer structure of glass fiber mesh and low-density wear-resistant particles, but its heat dissipation effect and strength are not good during grinding, which greatly reduces the service life of the grinding wheel. Utility Model Content

[0004] The purpose of this invention is to provide a low-density resin grinding wheel to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-density resin grinding wheel, comprising a core, wherein a first cover and a second cover are respectively provided on the front and back sides of the core, the first cover and the second cover have the same structure and are symmetrically distributed about the core, a mesh liner is sleeved on the outside of the core, the mesh liner is inserted into the gap between the first cover and the second cover, and a resin grinding wheel surface one and a resin grinding wheel surface two are arranged sequentially from the inside to the outside on the outer side of the mesh liner, the first resin grinding wheel surface being located inside the second resin grinding wheel surface.

[0006] In a preferred embodiment, the core includes a substrate, a bushing is provided in the middle of the substrate, and the two ends of the bushing protrude from the outside of the substrate; The outer wall of the substrate is provided with several through stress grooves.

[0007] In a preferred embodiment, the substrate is provided with an integrally formed connecting piece on the outside, and mesh liners are provided on both sides of the connecting piece. The first and second snap-on covers are respectively snapped onto the outer surface of the connecting piece to fix the mesh liners.

[0008] In a preferred embodiment, both the first and second covers have through holes in their middle portions, and the outer walls of the first and second covers have several annularly distributed through ventilation slots.

[0009] In a preferred embodiment, the ventilation slot is an arc-shaped structure, the ventilation slot passes through the first and second covers, and the ventilation slot is inclined.

[0010] In a preferred embodiment, the thickness of the first resin grinding wheel surface is twice the thickness of the second resin grinding wheel surface.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This low-density resin grinding wheel, through the core made of high-strength steel material, ensures the stability of the grinding wheel during installation and achieves a stable support effect during resin grinding wheel surface grinding operations. The mesh liner, multi-layer resin grinding wheel surface and core are fixedly connected by the first and second snap covers, which further improves the connection strength. This low-density resin grinding wheel features stress grooves on the substrate to reduce thermal stress and microcracks during grinding. Ventilation slots on the cover allow air to pass through when the grinding wheel rotates at high speed, effectively cooling the wheel and extending tool life. Attached Figure Description

[0012] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is an exploded view of the front of the structure of this utility model; Figure 3 This is a front view of the structure of this utility model; Figure 4 This is a half-sectional view of the structure of this utility model; Figure 5 The structure of this utility model Figure 4 Enlarged image.

[0013] In the figure: 1. Core; 11. Substrate; 12. Bushing; 13. Connecting piece; 14. Stress groove; 2. Cover 1; 21. Through hole; 22. Ventilation slot; 3. Cover 2; 4. Mesh liner; 5. Resin grinding wheel surface 1; 6. Resin grinding wheel surface 2. Detailed Implementation

[0014] The present invention will be further described below with reference to the embodiments.

[0015] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0016] Please see Figure 1 , Figure 2 and Figure 3This utility model provides a low-density resin grinding wheel, including a core 1, the core 1 including a base plate 11, a bushing 12 provided in the middle of the base plate 11, the two ends of the bushing 12 protruding from the outside of the base plate 11, a plurality of through stress grooves 14 provided on the outer wall of the base plate 11, an integrally formed connecting piece 13 provided on the outside of the base plate 11, and mesh liners 4 provided on both sides of the connecting piece 13, and a first cover 2 and a second cover 3 respectively fastened to the outer surface of the connecting piece 13 to fix the mesh liners 4.

[0017] In this embodiment, the substrate 11 and the bushing 12 are an integral structure, so that the shaft can be inserted into the inside of the bushing 12 to complete the installation when the resin grinding wheel is used. The protruding structure of the bushing 12 prevents the first cover 2 and the second cover 3 from contacting the nut when it is pre-tightened with the nut. The stress groove 14 provided on the substrate 11 reduces thermal stress and microcracks during the grinding process. The first cover 2 and the second cover 3 can also be a mesh cloth structure similar to the mesh liner 4. After the abrasive and binder are dispersed on its surface, the first cover 2 and the second cover 3 are formed by high pressure.

[0018] Please see Figure 2 and Figure 3 The core 1 has a first cover 2 and a second cover 3 on its front and back sides, respectively. The first cover 2 and the second cover 3 have the same structure and are symmetrically distributed about the core 1. Both the first cover 2 and the second cover 3 have a through hole 21 in the middle. The through hole 21 allows the first cover 2 and the second cover 3 to be fitted onto the outside of the substrate 11, achieving a close connection between the first cover 2 and the second cover 3 and the connecting piece 13. Several annularly distributed through ventilation slots 22 are provided on the outer wall of the first cover 2 and the second cover 3. The ventilation slots 22 have an arc-shaped structure and obliquely penetrate the first cover 2 and the second cover 3. The oblique angle of the ventilation slots 22 is 30-60°, and the preferred oblique angle of the ventilation slots 22 is 30°.

[0019] In this embodiment, the connecting piece 13 extends outward from the substrate 11, so that the mesh liner 4 is laid on both sides of the connecting piece 13, thereby allowing the first cover 2 and the second cover 3 to be placed outside the connecting piece 13 and cover the mesh liner 4. The placement of the first cover 2 and the second cover 3 here ensures the stability and strength of the connection between the first cover 2 and the second cover 3, the mesh liner 4, the connecting piece 13 and the substrate 11. At the same time, the ventilation slots 22 provided on the first cover 2 and the second cover 3 allow external air to flow from inside the ventilation slots 22 when the resin grinding wheel rotates at high speed, which can drive the heat generated during grinding by the grinding wheel and achieve the purpose of auxiliary heat dissipation.

[0020] Please see Figure 1 , Figure 4 and Figure 5The core 1 is fitted with a mesh liner 4, which is made of high-strength glass fiber mesh to bond with the abrasive and form a structure for grinding. The mesh liner 4 is fitted into the gap between the first cover 2 and the second cover 3. On the outer side of the mesh liner 4, from the inside to the outside, there are resin grinding wheel surface 5 and resin grinding wheel surface 6. The resin grinding wheel surface 5 is located inside the resin grinding wheel surface 6. The abrasive and the bonding agent are placed on the mesh liner 4 and formed by pressing. The thickness of the resin grinding wheel surface 5 is twice the thickness of the resin grinding wheel surface 6. The bonding agent is made of resin material. The abrasive is one of alumina, silicon carbide, diamond, etc., and hollow filler is added to the abrasive particles.

[0021] In this embodiment, since the thickness of resin grinding wheel surface 5 is greater than the thickness of resin grinding wheel surface 6, a stepped resin grinding wheel surface is formed. The outer resin grinding wheel surface 6 can be used in a limited way. At the same time, this stepped structure also improves the overall strength and stability of the grinding wheel. The hollow filler added to the abrasive is glass microspheres, which achieves the low density characteristic of the resin grinding wheel, thereby improving the performance of the resin grinding wheel.

[0022] The working principle and usage process of this utility model are as follows: First, prepare for the production of the grinding wheel. Prepare the abrasive, which can be selected from alumina, silicon carbide, diamond, etc., and prepare the resin material binder. Next, place the core 1 at the center of the corresponding mold, and position the first cover 2 and the second cover 3 on both sides of the core 1. Specifically, first place the first cover 2 in the mold, lay the mesh lining 4 on the upper surface of the first cover 2, place the core 1 on top of the first cover 2, lay the second layer of mesh lining 4, and then place the second cover 3 on the upper surface of the core 1. The first cover 2 and the second cover 3 can be fixed on the core 1 using high-strength adhesive to form an integral structure. Finally, the abrasive is placed inside the mold and spread on the outer surface of the mesh liner 4. The mold is driven by a press to form a resin grinding wheel surface 5 with a thickness of resin grinding wheel surface 6 on the mesh liner 4. Then, the formed grinding wheel is subjected to subsequent hardening, balancing and dressing processes to achieve the production of low-density resin grinding wheels.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-density resin grinding wheel, comprising a core (1), characterized in that: The front and back sides of the core (1) are respectively provided with a first cover (2) and a second cover (3). The first cover (2) and the second cover (3) have the same structure and are symmetrically distributed about the core (1). The core (1) is covered with a mesh liner (4). The mesh liner (4) is inserted into the gap between the first cover (2) and the second cover (3). The outer side of the mesh liner (4) is provided with a resin grinding wheel surface (5) and a resin grinding wheel surface (6) from the inside to the outside. The resin grinding wheel surface (5) is located inside the resin grinding wheel surface (6).

2. The low-density resin grinding wheel according to claim 1, characterized in that: The core (1) includes a substrate (11), and a bushing (12) is provided in the middle of the substrate (11), with both ends of the bushing (12) protruding outside the substrate (11). The outer wall of the substrate (11) is provided with a plurality of through stress grooves (14).

3. The low-density resin grinding wheel according to claim 2, characterized in that: The substrate (11) is provided with an integrally formed connecting piece (13) on the outside. Both sides of the connecting piece (13) are provided with mesh liners (4). The first buckle (2) and the second buckle (3) are respectively fastened to the outer surface of the connecting piece (13) for fixing the mesh liners (4).

4. The low-density resin grinding wheel according to claim 1, characterized in that: Both the first cover (2) and the second cover (3) are provided with through holes (21) in the middle, and a number of annularly distributed through ventilation slots (22) are provided on the outer wall of the first cover (2) and the second cover (3).

5. A low-density resin grinding wheel according to claim 4, characterized in that: The ventilation slot (22) is an arc-shaped structure. The ventilation slot (22) passes through the first cover (2) and the second cover (3). The ventilation slot (22) is inclined.

6. The low-density resin grinding wheel according to claim 1, characterized in that: The thickness of the resin grinding wheel surface one (5) is twice the thickness of the resin grinding wheel surface two (6).

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