CN221834139U - A double-layer grinding wheel - Google Patents

Abstract

The utility model provides a double-grinding-layer grinding wheel which comprises a mounting base, wherein a first grinding layer and a second grinding layer are arranged on one end face of the mounting base in an inner-outer concentric manner, the first grinding layer and the second grinding layer are closely connected, the outer side faces of the first grinding layer and the second grinding layer are positioned in the same plane, the first grinding layer is a metal bonding agent or a resin bonding agent, and the second grinding layer is polyurethane or rubber. The grinding wheel is concentrically provided with the first grinding layer and the second grinding layer, the end face of the grinding wheel is a working face during grinding, the second grinding layer on the outermost layer is firstly subjected to fine grinding, the grinding particle size is larger, the efficiency is high, the grinding wheel continues to feed, the first grinding layer is subjected to grinding and polishing, the grinding particle size is smaller, the polishing precision is high, the grinding wheel is not required to be replaced in the whole process by adopting one-time grinding, the same grinding wheel has the functions of fine grinding and polishing, the station of equipment is reduced, fine grinding and polishing can be completed by one-time grinding, and the polishing efficiency is improved.

Description

A double-layer grinding wheel

Technical Field

The utility model relates to the technical field of grinding wheels, in particular to a grinding wheel with double grinding layers.

Background Art

Grinding wheel is also called bonded abrasive. Grinding wheel is a bonded abrasive with a certain strength and abrasives bonded into a certain shape by a bonding agent. It is generally composed of abrasive, bonding agent and pores, which are often called the three elements of bonded abrasives. According to the different classifications of bonding agents, common ones are ceramic (bond) grinding wheel, resin (bond) grinding wheel and rubber (bond) grinding wheel. Resin grinding wheel is the most widely used and widely used abrasive tool. When used, it rotates at high speed and can be used for rough grinding, semi-finishing grinding and fine grinding of the outer circle, inner circle, plane and various profiles of metal or non-metal workpieces, as well as grooving and cutting. Most of the working surfaces of the grinding wheel are on the outer surface of its circumference, but a small part of them have their working surfaces on their end planes. When used to grind the end faces of ceramics or glass plates, the working surface of the grinding wheel is on its end plane. Grinding wheels can be divided into many types of grinding wheels according to their particle size, and the processing precision of grinding wheels of different particle sizes is different.

However, the grinding wheels currently used for end plane work have a unique particle size. The larger the particle size, the higher the grinding efficiency, but the lower the precision. For some products that need to improve grinding efficiency and grinding precision, they can only be ground once with a grinding wheel with a large particle size, and then use a grinding wheel with a small particle size to grind again at the next station, resulting in low grinding efficiency and an increase in the number of stations of the grinding equipment.

Utility Model Content

In view of the above problems, the utility model provides a grinding wheel with double grinding layers to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

A double-grinding-layer grinding wheel comprises a mounting base, wherein a first grinding layer and a second grinding layer are concentrically arranged inside and outside an end surface of the mounting base, the first grinding layer and the second grinding layer are tightly connected, and the outer side surfaces of the first grinding layer and the second grinding layer are located in the same plane, the first grinding layer contains a metal binder and diamond abrasive particles, or contains a resin binder and diamond abrasive particles, and the second grinding layer contains polyurethane and diamond abrasive particles, or contains rubber and diamond abrasive particles, and the particle size of the diamond abrasive particles in the first grinding layer is smaller than that in the second grinding layer.

Preferably, the ratio of the thickness of the first grinding layer to the thickness of the second grinding layer is 1-1.5.

Preferably, the thickness of the first grinding layer is 10-20 mm, and the thickness of the second grinding layer is 5-15 mm.

Beneficial effects of the utility model:

The grinding wheel of the utility model is concentrically provided with a first grinding layer and a second grinding layer, and the outer side surfaces of the first grinding layer and the second grinding layer are located in the same plane. During grinding, the end surface of the grinding wheel is the working surface, and the outermost second grinding layer is first finely ground, and its grinding particles have a larger particle size and high efficiency. The grinding wheel continues to feed, and the first grinding layer is then ground and polished, and its grinding particles have a smaller particle size and high grinding accuracy. The grinding process is performed once, and the grinding wheel does not need to be replaced during the whole process. The same grinding wheel has the functions of fine grinding and polishing, which reduces the number of workstations of the equipment, and can complete fine grinding and polishing in one grinding, thereby improving the grinding efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of this embodiment.

DETAILED DESCRIPTION

The technical solution of the utility model is described below in conjunction with the accompanying drawings and embodiments.

1 , a double-grinding-layer grinding wheel of the utility model comprises a mounting base 1, the mounting base 1 is made of stainless steel, a through hole is provided in the middle thereof, a first grinding layer 2 and a second grinding layer 3 are provided concentrically inside and outside the end surface of the mounting base 1, the first grinding layer 2 and the second grinding layer 3 are both annular, the first grinding layer 2 is on the inner side of the second grinding layer 3, the outer circle of the first grinding layer 2 and the inner circle of the second grinding layer 3 are tightly connected, the outer side surfaces of the first grinding layer 2 and the second grinding layer 3 are located in the same plane, which is a working surface, the first grinding layer 2 contains metal binder and diamond abrasive particles, or contains resin binder and diamond abrasive particles, and has high grinding efficiency, the second grinding layer 3 contains polyurethane and diamond abrasive particles, or contains rubber and diamond abrasive particles, the particle size of the diamond abrasive particles of the first grinding layer 2 is smaller than that of the second grinding layer 3, and the specific particle size is selected according to demand.

As a preferred solution, the ratio of the thickness of the first grinding layer 2 to the second grinding layer 3 is 1-1.5. Within this range, fine grinding followed by polishing can achieve a better effect between grinding efficiency and grinding accuracy.

As a preferred solution, the thickness of the first grinding layer 2 is 10-20 mm, and the thickness of the second grinding layer 3 is 5-15 mm. The thickness mentioned above refers to the thickness along the radial direction.

When the grinding wheel is in operation, it is installed on the grinder, the end face of the grinding wheel is the working face, the second grinding layer 3 is ground first, and the grinding object is glass, stone, ceramics and other materials. After the second grinding layer 3 is ground, the first grinding layer 2 continues to grind the product. The grinding wheel does not need to be replaced during the whole process. The same grinding wheel has the functions of fine grinding and polishing, which reduces the number of workstations of the equipment. Fine grinding and polishing can be completed in one grinding, thereby improving the grinding efficiency.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims (3)

1. A double-grinding-layer grinding wheel, comprising a mounting base, characterized in that: a first grinding layer and a second grinding layer are concentrically arranged inside and outside an end surface of the mounting base, the first grinding layer and the second grinding layer are tightly connected, the outer side surfaces of the first grinding layer and the second grinding layer are located in the same plane, the first grinding layer contains a metal binder and diamond abrasive particles, or contains a resin binder and diamond abrasive particles, the second grinding layer contains polyurethane and diamond abrasive particles, or contains rubber and diamond abrasive particles, and the particle size of the diamond abrasive particles in the first grinding layer is smaller than that in the second grinding layer. 2. A double-grinding-layer grinding wheel according to claim 1, characterized in that the ratio of the thickness of the first grinding layer to the thickness of the second grinding layer is 1-1.5. 3. A double-grinding-layer grinding wheel according to claim 1, characterized in that the thickness of the first grinding layer is 10-20 mm, and the thickness of the second grinding layer is 5-15 mm.