Grinding disc and grinding machine

Abstract

The utility model belongs to the technical field of grinding equipment, and discloses a grinding disc and a grinding machine. The grinding disc comprises a disc body, a connecting accessory and an abutting piece, a first boss is arranged on the surface of the disc body, so that a mounting face with a plane and a convex face is formed on the surface of the disc body, and the connecting accessory is attached to the mounting face; the abutting piece is located on the side, away from the installation face, of the connecting accessory, the abutting piece is connected to the disc body, the abutting piece abuts against the area, attached to the plane, of the connecting accessory, the area, attached to the convex face, of the connecting accessory is exposed, and the consumable can be bonded. According to the polishing disc, the connecting accessory is jacked up through the first boss, so that the area, attached to the first boss, of the connecting accessory is exposed, and the consumable can be firmly bonded; meanwhile, the connecting accessory is pressed on the plane through the abutting piece, so that the connecting accessory is not prone to being separated from the disc body, the working stability of the connecting accessory is improved, and the risk that the connecting accessory falls off is reduced.

Description

Technical Field

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

[0002] Grinding discs are mainly used to fix the consumables used for grinding. The consumables are generally sandpaper, grinding sheets or polishing sheets. The surface of the product is rubbed with the consumables with rough particles to improve the surface quality, smoothness and precision of the product.

[0003] Current consumables are generally detachably connected to the grinding disc to facilitate frequent replacement of the consumables. Specifically, a connecting accessory is connected to the grinding disc, which is generally the hook surface of Velcro, while the back of the consumable is a velvet surface that can be bonded to the Velcro and can be directly bonded to the connecting accessory.

[0004] Because grinding discs are typically coated, their surface is relatively smooth, affecting the stability of the connection between the Velcro and the disc. Furthermore, the addition of liquid polishing agents during the grinding process further increases the risk of the Velcro detaching from the disc. If the Velcro detaches during operation, not only does it require production to be halted, but it can also cause damage to the product and personnel. Therefore, these issues require urgent solutions. Utility Model Content

[0005] The purpose of the utility model is to provide a grinding disc and a grinding machine to improve the stability of the connection between the connecting accessories and the grinding disc, prevent the connecting accessories from falling off, improve production efficiency, and reduce damage to products and workers.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A grinding disc, comprising a disc body and a connecting accessory, wherein a first boss is provided on a surface of the disc body so that the surface of the disc body forms a mounting surface having a flat surface and a convex surface, and the connecting accessory is attached to the mounting surface;

[0008] The grinding disc also includes:

[0009] A pressing member is connected to the disk body and is located on the side of the connecting auxiliary member facing away from the mounting surface. The pressing member presses the area of ​​the connecting auxiliary member that is attached to the plane, so that the area of ​​the connecting auxiliary member that is attached to the convex surface is exposed and can be bonded with consumables.

[0010] Preferably, the pressing member comprises:

[0011] The first bosses are provided on the inner ring or outer ring of the pressure ring along the circumference of the pressure ring; and / or,

[0012] The first pressing piece is located between two adjacent first bosses, and a plurality of the first pressing pieces are provided.

[0013] Preferably, the pressure ring portion is coaxially arranged with the disc body, and the outer diameter of the pressure ring portion is greater than or equal to the diameter of the disc body.

[0014] Preferably, one first pressing portion is provided between two adjacent first bosses.

[0015] Preferably, the pressing member includes the pressing ring portion and the first pressing sheet portion; the pressing member further includes:

[0016] The second pressing piece is located in the inner ring of the pressing ring, the first boss is located between the second pressing piece and the pressing ring, and the first pressing piece is connected between the second pressing piece and the pressing ring.

[0017] Preferably, a second boss is further provided on the surface of the disc body, and an avoidance hole is provided in a region of the second pressing portion corresponding to the second boss.

[0018] Preferably, the first boss gradually decreases in a direction from approaching the disc body to away from the disc body.

[0019] Preferably, the pressing member is detachably connected to the disc body.

[0020] Preferably, the thickness of the pressing member is equal to the height of the first boss.

[0021] A grinder comprises a grinder body and a grinding disc, wherein the grinding disc is connected to an output shaft of the grinder body.

[0022] Beneficial effects of the utility model:

[0023] The grinding disc of the present invention lifts up the connecting accessory through the first boss on the disc body, so that the connecting accessory is exposed in the area where the connecting accessory is attached to the first boss, that is, the pressing piece does not cover the area where the connecting accessory is attached to the first boss, so that the connecting accessory is attached to the first boss area and can firmly adhere to the consumables, thereby ensuring the connection stability of the consumables; and the pressing piece is used to press the connecting accessory on the plane, so that the connecting accessory is not easy to separate from the disc body, and finally, without affecting the connection strength of the consumables, the working stability of the connecting accessory is improved, and the risk of the connecting accessory falling off is reduced, which helps to improve production efficiency and reduce safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the grinding disc of the utility model;

[0025] Figure 2 It is an exploded view of the grinding disc of the present utility model.

[0026] In the picture:

[0027] 1. Disc body; 11. First boss; 12. Second boss; 13. Mounting surface; 131. Plane; 132. Convex surface; 2. Pressing member; 21. Pressing ring; 22. First pressing piece; 23. Second pressing piece; 231. Avoidance hole. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0029] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0032] Refer to the following Figures 1 to 2The grinding disc and the grinding machine provided by the utility model are described.

[0033] The grinder includes a grinder body and a grinding disc. The grinder body is any device known in the art for surface treatment of workpieces, and its specific structure is omitted for clarity. The grinding disc is connected to an output shaft of the grinder body. The grinder body drives the grinding disc to rotate, thereby grinding, lapping, and polishing the product, thereby achieving surface treatment.

[0034] Currently, consumables on grinding discs are typically bonded and fixed via connecting accessories. Specifically, the connecting accessories are fixed to the grinding disc, and the consumables are bonded to the connecting accessories. However, during actual operation, the connection between the connecting accessories and the grinding disc is not stable, and there is a risk of the connecting accessories falling off. Therefore, this embodiment provides a grinding disc designed to improve the stability of the connection between the grinding disc body and the connecting accessories. Please refer to the following content of this embodiment for the specific structure of this grinding disc.

[0035] Reference Figure 1 and Figure 2 The grinding disc includes a disc body 1, a connecting auxiliary part (not shown in the figure) and a pressing part 2. The disc body 1, the connecting auxiliary part and the pressing part 2 are arranged in sequence. The connecting auxiliary part is attached to the surface of the disc body 1, and the pressing part 2 is pressed against the connecting auxiliary part and connected to the disc body 1. The connecting auxiliary part is pressed against the surface of the disc body 1 by the pressing part 2, so that the connecting auxiliary part is not easily separated from the disc body 1.

[0036] Specifically, the surface of the tray body 1 is connected to a first boss 11, forming a mounting surface 13 having a flat surface 131 and a convex surface 132. Flat surface 131 is the surface of the tray body 1, and convex surface 132 is the surface of the first boss 11 facing away from the tray body 1. The auxiliary connection component is attached to the mounting surface 13. A pressing member 2 is provided in the form of a sheet, pressing against the area of ​​the auxiliary connection component that contacts flat surface 131, thereby exposing the area of ​​the auxiliary connection component that contacts convex surface 132 and enabling bonding of the consumables.

[0037] Through the above-mentioned arrangement, the first boss 11 can lift the connecting accessory, exposing the area where the connecting accessory abuts the first boss 11. That is, the pressing member 2 does not cover the area where the connecting accessory abuts the convex surface 132, so that the area where the connecting accessory abuts the convex surface 132 can firmly adhere to the consumables. The pressing member 2 presses the connecting accessory against the flat surface 131, making it difficult for the connecting accessory to separate from the tray body 1, thus ensuring the stability of the connection accessory and the consumables. In addition, in this embodiment, the thickness of the pressing member 2 is equal to the height of the first boss 11, thereby ensuring that the area where the Velcro abuts the convex surface 132 is fully exposed for bonding the consumables.

[0038] For example, the connection auxiliary component in this embodiment is described using Velcro as an example. Velcro has a certain degree of flexibility and can conform to uneven mounting surfaces 13. Velcro also has multiple advantages, such as ease of use, strong adhesion, good durability, and strong adaptability. The consumable material in this embodiment uses sandpaper as an example. In other embodiments, the consumable material can also be a grinding sheet or polishing sheet, etc., which can be rotated according to the needs of the operation.

[0039] In addition, the disc body 1 in this embodiment is a circular disc, and multiple first bosses 11 are arranged along the circumference of the disc body 1. This embodiment takes four as an example, so that there is a certain contact surface between the Velcro and the sandpaper to improve the stability of the sandpaper connection.

[0040] The pressing member 2 includes a pressure ring portion 21 and / or a first pressing piece portion 22. Specifically, in this embodiment, the pressing member 2 includes the pressure ring portion 21 and the first pressing piece portion 22. The four first bosses 11 are located within the inner ring of the pressure ring portion 21. The annular pressure ring portion 21 ensures more uniform pressure on the Velcro strip, ensuring its stability. The pressure ring portion 21 is coaxially disposed with the disc body 1, and its outer diameter is greater than or equal to the diameter of the disc body 1. In this embodiment, the outer diameter of the pressure ring portion 21 is equal to the diameter of the disc body 1, allowing the pressure ring portion 21 to completely cover the edge of the Velcro strip, preventing the edge of the Velcro strip from warping, thereby extending the service life of the Velcro strip.

[0041] Furthermore, the first pressing piece 22 is located between two adjacent first bosses 11 and is connected to the inner ring of the pressure ring 21. There is one first pressing piece 22 between two adjacent first bosses 11. The multiple first pressing pieces 22 increase the pressing area of ​​the pressing member 2 against the Velcro, improving the pressing effect on the Velcro.

[0042] Optionally, in some other embodiments, the first boss 11 in this embodiment is also located on the outer ring of the pressure ring portion 21 ; in some other embodiments, the pressing member 2 may only include the pressure ring portion 21 or only include a plurality of first pressing sheet portions 22 .

[0043] Furthermore, the pressing member 2 also includes a second pressing piece 23, which is located on the inner ring of the pressing ring 21. The first boss 11 is located between the second pressing piece 23 and the pressing ring 21, and the first pressing piece 22 is connected between the second pressing piece 23 and the pressing ring 21. The second pressing piece 23 further increases the pressing area of ​​the pressing member 2 on the Velcro, while making the Velcro more evenly compressed, thereby further improving the pressing effect on the Velcro.

[0044] In addition, the middle area of ​​the disc body 1 is connected to the second boss 12, which is at the same height as the first boss 11. The second pressing piece 23 is provided with an avoidance hole 231 in the area corresponding to the second boss 12. In other embodiments, the second pressing piece 23 can also be directly provided in an annular shape.

[0045] It is worth noting that, in this embodiment, the first boss 11 gradually decreases in the direction from approaching the disk body 1 to away from the disk body 1, and the second boss 12 also gradually decreases in the direction from approaching the disk body 1 to away from the disk body 1, so that the roots of the first boss 11 and the second boss 12 can be larger than the tops, thereby improving the bearing capacity and stability of the first boss 11 and the second boss 12, and having the effect of dispersing stress and reducing local stress concentration.

[0046] To facilitate replacement of the Velcro strip after it becomes ineffective, the pressure piece 2 is detachably connected to the disc body 1. In this embodiment, each first pressing piece 22 is provided with a through hole. Screws are inserted through the through holes and threadedly connected to the disc body 1, thereby effectively securing the pressure piece 2 and facilitating its removal for replacement of the Velcro strip. It should be noted that the through holes in this embodiment are countersunk to accommodate the screw heads and prevent the screws from protruding from the pressure piece 2.

[0047] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A grinding disc, comprising a disc body (1) and connecting accessories, characterized in that: The surface of the disk body (1) is provided with a first boss (11), so that the surface of the disk body (1) forms a mounting surface (13) having a flat surface (131) and a convex surface (132), and the connecting auxiliary component is attached to the mounting surface (13); The grinding disc also includes: A pressing member (2) is connected to the disk body (1) and is located on the side of the connecting auxiliary member facing away from the mounting surface (13). The pressing member (2) presses the area where the connecting auxiliary member is attached to the plane (131), so that the area where the connecting auxiliary member is attached to the convex surface (132) is exposed and can be bonded to consumables.

2. The grinding disc according to claim 1, characterized in that: The pressing member (2) comprises: A pressure ring portion (21), wherein a plurality of first bosses (11) are provided on the inner ring or outer ring of the pressure ring portion (21) along the circumference of the pressure ring portion (21); and / or, A first pressing piece (22), wherein the first pressing piece (22) is located between two adjacent first bosses (11), and a plurality of the first pressing pieces (22) are provided.

3. The grinding disc according to claim 2, characterized in that: The pressure ring portion (21) is coaxially arranged with the disc body (1), and the outer diameter of the pressure ring portion (21) is greater than or equal to the diameter of the disc body (1).

4. The grinding disc according to claim 2, characterized in that: One of the first pressing pieces (22) is provided between two adjacent first bosses (11).

5. The grinding disc according to claim 2, characterized in that: The pressing member (2) comprises the pressing ring portion (21) and the first pressing sheet portion (22); the pressing member (2) further comprises: A second pressing piece (23), the second pressing piece (23) is located in the inner ring of the pressing ring (21), the first boss (11) is located between the second pressing piece (23) and the pressing ring (21), and the first pressing piece (22) is connected between the second pressing piece (23) and the pressing ring (21).

6. The grinding disc according to claim 5, characterized in that: The surface of the disc body (1) is further provided with a second boss (12), and the second pressing piece (23) is provided with an avoidance hole (231) in a region corresponding to the second boss (12).

7. The grinding disc according to any one of claims 1 to 6, characterized in that: The first boss (11) gradually decreases in size from approaching the disk body (1) to moving away from the disk body (1).

8. The grinding disc according to any one of claims 1 to 6, characterized in that: The pressing member (2) is detachably connected to the disc body (1).

9. The grinding disc according to any one of claims 1 to 6, characterized in that: The thickness of the pressing member (2) is equal to the height of the first boss (11).

10. A grinder, comprising a grinder body, characterized in that: The grinder further comprises a grinding disc as claimed in any one of claims 1 to 9, wherein the grinding disc is connected to an output shaft of the grinder body.

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