Grinding disc and grinding device

Abstract

According to the grinding disc and the grinding device, at least one grinding disc is assembled in the grinding device provided with a power source, each grinding disc comprises a connecting part and at least two dispersing parts, the connecting part is in transmission connection with the power source, and the dispersing parts are fixedly connected with the connecting part and distributed in the circumferential direction of the connecting part. A dispersing space is defined by the opposite side faces of every two adjacent dispersing parts and the circumferential side face of the connecting part, each dispersing part is provided with a movement track rotating in the circumferential direction of the connecting part, and each dispersing space is used for transferring the position where grinding materials in the grinding device are located. The dispersion spaces provide accommodating positions for grinding materials in the grinding device, the grinding disc is driven to rotate along with the power source, each dispersion space also rotates, part of the grinding materials are accommodated in the dispersion spaces, and the grinding materials are driven to be dispersed in the grinding cavity; the problems of non-uniform abrasion and poor machining effect caused by excessive concentration of grinding materials in a specific area are solved, and the grinding uniformity and machining stability of the grinding device can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding, and in particular relates to a grinding disc and a grinding device. Background Art

[0002] A grinding device is a device used to grind the surface of an object, and is commonly used in industrial fields such as metal processing, glass processing, and ceramic processing. The grinding device in the related art usually includes a built-in abrasive, a motor, and a grinding tool. The motor is connected to the grinding tool in a transmission manner. The motor acts as a power source to drive the grinding tool to rotate, so that the built-in abrasive moves. The abrasive has a high hardness and cuts and rubs the surface of the object, thereby achieving precise control of the shape, roughness, and size of the object.

[0003] However, the granular abrasive will aggregate under the influence of centrifugal force during the movement, and the grinding area of ​​the object will be greatly reduced after the abrasive is aggregated. The grinding tool used in the related art can only play the role of stirring the abrasive, and the abrasive driven is small, making it difficult to achieve uniform dispersion of the abrasive in the grinding device, resulting in uneven grinding and poor grinding effect. Utility Model Content

[0004] The technical purpose of the utility model is to provide a grinding disc and a grinding device, aiming to solve the problem of poor grinding effect caused by the inability to evenly disperse abrasives.

[0005] In order to solve the above technical problems, the utility model is implemented as follows: a grinding disc is assembled in a grinding device equipped with a power source, comprising:

[0006] A connecting portion, drivingly connected to the power source;

[0007] At least two dispersion parts, each of which is fixedly connected to the connecting part and arranged along the circumference of the connecting part, the opposite side surfaces of the two adjacent dispersion parts and the circumferential side surfaces of the connecting part enclose a dispersion space, each dispersion part has a motion trajectory rotating along the circumference of the connecting part, and each dispersion space is used to transfer the position of the abrasive in the grinding device.

[0008] In some embodiments of the utility model, the cross-section of each of the dispersion spaces along the axial direction of the grinding disc is trapezoidal.

[0009] In some embodiments of the utility model, a dispersion angle is provided between two opposite side walls of two adjacent dispersion spaces, and the dispersion angle is 30° to 90°.

[0010] In some embodiments of the utility model, at least two of the dispersion angles are the same or different.

[0011] In some embodiments of the utility model, the connecting position between each of the dispersing portion and the connecting portion is chamfered.

[0012] In some embodiments of the utility model, the connecting portion is provided with a connecting hole, the connecting hole is plug-fitted with the transmission shaft of the power source, the surrounding wall of the connecting hole is provided with a limiting groove, the transmission shaft of the power source is provided with a convex portion, and the convex portion is snap-fitted with the limiting groove.

[0013] The utility model also provides a grinding device, wherein at least one grinding disc as described above is arranged in the grinding device.

[0014] Compared with the prior art, the grinding disc and grinding device in the utility model have the following beneficial effects:

[0015] The utility model provides a grinding disc and a grinding device, wherein at least one grinding disc is installed in a grinding device equipped with a power source, each grinding disc includes a connecting portion and at least two dispersing portions, the connecting portion is connected to the power source by transmission, each dispersing portion is fixedly connected to the connecting portion and arranged along the circumference of the connecting portion, the opposite sides of the two adjacent dispersing portions and the circumferential side of the connecting portion enclose a dispersing space, each dispersing portion has a motion trajectory rotating along the circumference of the connecting portion, and each dispersing space is used to transfer the position of the abrasive in the grinding device. Each dispersing space provides a accommodating position for the abrasive in the grinding device, as the power source drives the connecting portion to rotate, the dispersing portion is driven to rotate, and each dispersing space also rotates. The abrasive in the grinding device is usually granular, and the granular abrasive will aggregate when moving in the grinding device. The dispersing space contains part of the abrasive and drives the abrasive to be dispersed in the grinding chamber, avoiding the problem of uneven wear and poor processing effect caused by excessive concentration of abrasive in a specific area, and helping to improve the grinding uniformity and processing stability of the grinding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the grinding disc in one embodiment of the utility model;

[0017] Figure 2 yes Figure 1 Side view of the grinding disc in FIG.

[0018] In the accompanying drawings, each reference numeral represents:

[0019] 100, grinding disc; 11, connecting part; 111, connecting hole; 112, limiting groove; 12, dispersion part; 13, dispersion space. DETAILED DESCRIPTION

[0020] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. 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, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] Please refer to Figure 1 and Figure 2 The utility model provides a grinding disc 100 and a grinding device (not shown), wherein at least one grinding disc 100 is installed in a grinding device equipped with a power source (not shown), each grinding disc 100 includes a connecting portion 11 and at least two dispersion portions 12, the connecting portion 11 is transmission-connected to the power source, each dispersion portion 12 is fixedly connected to the connecting portion 11 and arranged circumferentially along the connecting portion 11, the opposite sides of two adjacent dispersion portions 12 and the peripheral side surfaces of the connecting portion 11 enclose a dispersion space 13, each dispersion portion 12 has a motion trajectory rotating along the circumference of the connecting portion 11, and each dispersion space 13 is used to transfer the position of the abrasive in the grinding device.

[0024] Each dispersion space 13 provides a storage position for the abrasive in the grinding device. As the power source drives the connecting part 11 to rotate, the dispersion part 12 is driven to rotate, and each dispersion space 13 also rotates. The abrasive in the grinding device is usually granular, and the granular abrasive will aggregate when moving in the grinding device. The dispersion space 13 contains part of the abrasive and drives the abrasive to be dispersed in the grinding chamber, avoiding the problem of uneven wear and poor processing effect caused by excessive concentration of abrasive in a specific area. It helps to improve the processing uniformity and stability of the grinding device, and at the same time can also reduce the wear between the abrasive and the grinding disc 100, and extend the service life of the equipment.

[0025] Abrasives can be materials with high hardness and good wear resistance, such as corundum, zircon, silicon carbide, aluminum oxide, boron carbide, etc. Abrasives are hard particles used to grind the surface of workpieces. Through the interaction between the abrasive and the workpiece surface, the unsaturated layer, oxide scale, burrs, etc. on the surface of the material can be removed, thereby achieving precise control of the surface roughness, shape and size of the workpiece.

[0026] The dispersion of the abrasive determines the processing range and area of ​​the workpiece, which can ensure that the abrasive particles evenly contact and act on the workpiece surface during the grinding process, avoiding surface quality problems caused by uneven wear. By controlling the dispersion of the abrasive, fine processing of the workpiece surface can be achieved, and processing accuracy and dimensional control capabilities can be improved.

[0027] Furthermore, in order to enhance the dispersion of the abrasive, a plurality of grinding discs 100 may be provided in the grinding device, and two adjacent grinding discs 100 are arranged at intervals. To avoid mutual interference between the plurality of grinding discs 100, the plurality of grinding discs 100 can simultaneously drive more abrasive to move.

[0028] In this embodiment, the cross section of each dispersion space 13 along the axial direction of the grinding disc 100 is a trapezoid. The trapezoidal dispersion space 13 has the characteristic of a large entrance, and the arc length of the dispersion space 13 close to the connection portion 11 is smaller than the arc length away from the connection portion 11, and the arc length changes continuously. When the abrasive approaches the grinding disc 100, the large entrance of the dispersion space 13 can be conducive to more effectively receiving and transferring the abrasive in the grinding device, so that the abrasive can flow and transfer smoothly, and can reduce the problems of uneven processing and low efficiency caused by abrasive blockage or excessive concentration.

[0029] At the same time, the inner wall of the trapezoidal dispersion space 13 changes continuously in a straight line, so that the abrasive is gradually released and evenly distributed in the dispersion space 13, avoiding the abrasive retention when the abrasive needs to be released, thereby effectively controlling the distribution of the abrasive on the grinding disc 100, and improving the dispersion effect of the abrasive in the grinding chamber, thereby improving the grinding efficiency and processing quality.

[0030] The outer side surfaces of the plurality of dispersed parts arranged on the connecting part may be arc-shaped, and the outer side surfaces of the arc-shaped parts may be arc-shaped.

[0031] In other embodiments, the dispersion space 13 may be in a shape with a large entrance and a small bottom, such as a fan shape, a triangle, etc., or other shapes that meet the requirements, which are not limited here.

[0032] Specifically, there is a dispersion angle between two opposite side walls of two adjacent dispersion spaces 13, and the dispersion angle is 30° to 90°. The dispersion angle can be 30°, 40°, 50°, 60°, 70°, 80°, 90°, etc. If the dispersion angle is too large, the entrance of the dispersion space 13 is too wide, and the abrasive entering the dispersion space 13 is easy to escape, and it is difficult to disperse with the rotation of the grinding disc 100. If the dispersion angle is too small, the entrance of the dispersion space 13 is too narrow, and the abrasive entering the dispersion space 13 is too little, and the grinding disc 100 drives the abrasive to disperse in an inefficient manner, and it is difficult to achieve the expected dispersion effect, and the abrasive is prone to aggregation.

[0033] In some embodiments, at least two dispersion angles are the same or different. Multiple dispersion angles can be set to different angles, and the design of different angles can be adjusted according to specific needs and processing requirements, thereby enhancing the processing flexibility of the grinding disc 100 and the grinding device. For workpieces of different shapes or sizes, the angle can be flexibly adjusted to obtain better processing effects.

[0034] Please refer to Figure 1 , in order to facilitate the chamfering of the connection position between each dispersion part 12 and the connection part 11 of the abrasive. By designing the chamfering of the connection position, the stress concentration phenomenon at the connection position between the connection part 11 and the dispersion part 12 can be effectively reduced, and the stress concentration that may occur at the sharp corner can be avoided, which helps to improve the fatigue resistance and durability of the grinding disc 100.

[0035] At the same time, the chamfer design can reduce the sudden change between the connecting portion 11 and the dispersing portion 12, and the connection between the two can achieve a smooth transition, which is convenient for the abrasive to be introduced into and released from the dispersing space 13, thereby improving the transfer efficiency of the abrasive and enhancing the dispersing effect of the abrasive in the grinding chamber.

[0036] Please refer to Figure 2 The connecting portion 11 is provided with a connecting hole 111, which is plug-fitted with the transmission shaft of the power source. The peripheral wall of the connecting hole 111 is provided with a limiting groove 112, and the transmission shaft of the power source is provided with a convex portion, which is snap-fitted with the limiting groove 112.

[0037] The power source can be in the form of an electric motor or the like. The snap-fitting fit between the limit groove 112 on the connecting hole 111 and the protrusion on the transmission shaft can realize a secure transmission connection between the power source and the connecting part 11, thereby avoiding relative sliding between the grinding disc 100 and the transmission shaft, which would result in lower power transmission efficiency. At the same time, it can also ensure the correct position of the transmission shaft in the connecting hole 111, thereby avoiding deviation or falling off of the transmission device during operation, and improving the stability and reliability of the transmission.

[0038] In combination with the embodiment in which multiple grinding discs 100 need to be assembled in the above-mentioned grinding device, the clamping fit design of the limiting groove 112 and the protrusion can simplify the installation process of the power source and the connecting part 11. The operator only needs to insert the protrusion into the limiting groove 112 to complete the connection, without the need for additional tools or complicated operations, thereby improving the installation efficiency and convenience of multiple grinding discs 100.

[0039] The snap-fit ​​design of the limiting groove 112 and the protrusion can increase the bearing capacity between the connecting part 11 and the power source. Through the design of the limiting groove 112, the axial and radial loads generated during transmission can be effectively shared, the stress concentration on the connecting part 11 is reduced, and the service life of the grinding disc 100 is extended.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding disc, mounted in a grinding device equipped with a power source, characterized in that: include: A connecting portion, drivingly connected to the power source; At least two dispersion parts, each of which is fixedly connected to the connecting part and arranged along the circumference of the connecting part, the opposite side surfaces of the two adjacent dispersion parts and the circumferential side surfaces of the connecting part enclose a dispersion space, each dispersion part has a motion trajectory rotating along the circumference of the connecting part, and each dispersion space is used to transfer the position of the abrasive in the grinding device.

2. The grinding disc according to claim 1, characterized in that The cross section of each of the dispersion spaces along the axial direction of the grinding disc is trapezoidal.

3. The grinding disc according to claim 1, characterized in that There is a dispersion angle between two opposite side walls of two adjacent dispersion spaces, and the dispersion angle is 30° to 90°.

4. The grinding disc according to claim 3, characterized in that The angles of at least two of the dispersion angles are the same or different.

5. The grinding disc according to claim 1, characterized in that The connecting position between each of the dispersing portion and the connecting portion is chamfered.

6. The grinding disc according to claim 1, characterized in that The connecting portion is provided with a connecting hole, the connecting hole is plug-fitted with the transmission shaft of the power source, the peripheral wall of the connecting hole is provided with a limiting groove, the transmission shaft of the power source is provided with a convex portion, and the convex portion is snap-fitted with the limiting groove.

7. A grinding device, characterized in that: The grinding device is provided with at least one grinding disc as described in any one of claims 1 to 6, and two adjacent grinding discs are arranged at intervals.

Images