Sand tile type grinding wheel suitable for grinding double end faces of carbon-ceramic brake disc

Abstract

The utility model relates to the technical field of superhard material grinding, and discloses an abrasive tile type grinding wheel suitable for double-end-face grinding of a carbon-ceramic brake disc. The grooves are distributed in the inner edge and the outer edge of the grinding wheel body in a mirror image mode. The first friction units are uniformly distributed on a groove in the outer edge of the grinding wheel main body to form a disc-shaped structure; the second friction units are uniformly distributed on the groove in the inner edge of the grinding wheel main body to form a disc-shaped structure; according to the abrasive tile type grinding wheel, refined grinding of the double end faces of the brake disc can be achieved; height difference exists between the bottom surface of the friction unit and the bottom surface of the grinding wheel main body, so that the friction unit can be ground for continuous use after being abraded, and the maintenance cost of the grinding wheel is greatly reduced; the grinding wheel adopts a sand tile type structure to replace a common integral plane type grinding wheel, a series of problems existing in an existing common grinding wheel can be solved, grinding wheel parts are detachable, and operation is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of superhard material grinding, for example, to an abrasive grinding wheel suitable for double-end surface grinding of carbon-ceramic brake discs. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] In recent years, as the public's demand for a more refined driving experience has grown, carbon-ceramic brake discs, a key component of the braking system, have become a new favorite in the market. Their excellent performance is poised for a breakout year, driven not only by their high performance but also by their aesthetic appeal. Both ends of carbon-ceramic brake discs are made of silicon carbide, resulting in a mirror-like finish after fine grinding. However, silicon carbide's hardness is second only to diamond in nature, so grinding silicon carbide requires a diamond grinding wheel specifically designed for this material. Currently, due to technical and wheel design limitations, no diamond grinding wheel is suitable for grinding carbon-ceramic brake discs. Most grinding wheels on the market are flat, resulting in numerous grinding marks on the disc surface, affecting its appearance. The high surface roughness also reduces performance when rubbing against the brake pad. Furthermore, the flat design of the grinding wheel makes it impossible to repair damaged wheels, increasing production costs. Therefore, a grinding wheel suitable for grinding the end faces of carbon-ceramic brake discs is undoubtedly an excellent solution to these problems. Utility Model Content

[0004] The present application provides a tile-type grinding wheel suitable for double-end surface grinding of carbon-ceramic brake discs, which replaces ordinary integral flat grinding wheels and is used for fine grinding of double-end surfaces of carbon-ceramic brake discs. The grinding wheel can effectively solve the problem that a large number of grinding marks on the surface of carbon-ceramic brake discs affect the appearance, the problem that high surface roughness leads to reduced performance when matching and rubbing with brake pads, and the problem that the grinding wheel is integrally flat and cannot be repaired when damaged, resulting in increased production costs, thereby ensuring the overall safety performance of carbon-ceramic brake discs.

[0005] Provided is an abrasive grinding wheel suitable for double-end grinding of carbon-ceramic brake discs, comprising:

[0006] The grinding wheel body has a disc-shaped structure; multiple grooves are mirror-distributed on the inner and outer edges of the grinding wheel body; multiple first friction units are evenly distributed on the grooves on the outer edge of the grinding wheel body to form a disc-shaped structure; multiple second friction units are evenly distributed on the grooves on the inner edge of the grinding wheel body to form a disc-shaped structure; the top surfaces of the first friction units and the second friction units are lower than the top surface of the grinding wheel body; the bottom surfaces of the first friction units and the second friction units protrude from the bottom surface of the grinding wheel body.

[0007] Optionally, the first friction unit and the second friction unit are connected to the screw holes on the groove through fastening screws.

[0008] Optionally, the first friction unit and the second friction unit are rectangular structures.

[0009] Optionally, the bottom surfaces of the first friction unit and the second friction unit have inwardly recessed friction grooves.

[0010] Optionally, the grinding wheel body is a chrome corundum grinding wheel.

[0011] Optionally, both ends of the inner side of the groove are provided with rounded corners.

[0012] Optionally, chamfers are provided at both ends of the outer side of the groove.

[0013] Optionally, both ends of the inner side surfaces of the first friction unit and the second friction unit are provided with rounded corners.

[0014] The present application provides an abrasive grinding wheel suitable for double-end surface grinding of carbon-ceramic brake discs, which can achieve the following technical effects:

[0015] (1) The main structure of the grinding wheel is mirrored with multiple grooves along the inner and outer edges, which increases the number of friction units that can be installed and improves the grinding effect;

[0016] (2) Multiple friction units are symmetrically distributed on the inner and outer edges of the grinding wheel body, which can achieve fine grinding of the double-end faces of the brake disc; the grooves on the bottom surface of the friction unit can effectively reduce the working area of the grinding wheel, reduce friction resistance, and further improve the grinding effect;

[0017] (3) There is a height difference between the bottom surface of the friction unit and the bottom surface of the grinding wheel body. This design allows the friction unit to be repaired and continued to be used after wear, greatly reducing the maintenance cost of the grinding wheel;

[0018] (4) The grinding wheel adopts a sand tile structure to replace the ordinary integral flat grinding wheel, which can solve a series of problems existing in the existing ordinary grinding wheels. In addition, the grinding wheel parts are detachable and easy to operate.

[0019] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0021] Figure 1This is a schematic diagram of the structure of the abrasive grinding wheel provided by an embodiment of the present disclosure;

[0022] Figure 2 is a schematic diagram of an assembled abrasive grinding wheel structure provided by an embodiment of the present disclosure;

[0023] Figure 3 is a top view of the abrasive grinding wheel structure provided by an embodiment of the present disclosure;

[0024] Figure 4 is a side view of the abrasive grinding wheel structure provided by an embodiment of the present disclosure;

[0025] Reference numerals:

[0026] 1. Grinding wheel body; 1-1. Grinding wheel outer edge groove; 1-2. Grinding wheel inner edge groove; 1-3. Screw hole; 2. First friction unit; 2-1. First through hole; 3. Second friction unit; 3-1. Second through hole; 4. Fastening screw; 5. Friction groove. DETAILED DESCRIPTION

[0027] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0028] In the specification and claims of the embodiments of the present disclosure and the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions.

[0029] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0030] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0031] Unless otherwise stated, the term "plurality" means two or more.

[0032] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0033] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0034] Combine Figure 1-4 As shown, a tile-type grinding wheel suitable for double-end surface grinding of carbon-ceramic brake discs includes a grinding wheel body 1, a first friction unit 2, a second friction unit 3 and a fastening screw 4;

[0035] The grinding wheel body 1 is made of 40Cr material, with a diameter of 400-600mm, an overall width of 20-30mm, and an overall height of 40-50mm. The 40Cr material ensures permanent use without damage. Maintenance only requires disassembly and regrinding of worn friction elements before reinstallation, significantly reducing production costs and extending the wheel's lifespan by 10-15 times that of conventional grinding wheels.

[0036] Specifically, the grinding wheel body 1 is a disc-shaped structure to meet the requirements of brake disc grinding. The grinding wheel body 1 is provided with a grinding wheel outer edge groove 1-1 and a grinding wheel inner edge groove 1-2 along the inner and outer edges, respectively. The inner ends of the grooves are designed with rounded corners with a radius of R1-R2; the outer ends of the grooves are designed with chamfers with a radius of C1-C2, which improves the mechanical strength of the grooves.

[0037] Two symmetrical screw holes 1-3 are designed in the middle of the groove. The size of the screw holes 1-3 is M6 / M8, which are used to fix the friction unit through the fastening screw 4.

[0038] The first friction unit 2 is evenly distributed on the outer edge groove 1-1 of the grinding wheel to form a disc-shaped structure; the second friction unit 3 is evenly distributed on the inner edge groove 1-2 of the grinding wheel to form a disc-shaped structure; wherein, both ends of the inner side surfaces of the first friction unit 2 and the second friction unit 3 are provided with rounded corners, and the rounded corner size is R1-R2. The rounded corners are mainly designed to match the rounded corners on the inner and outer edge grooves of the grinding wheel body to ensure that the friction unit and the grinding wheel body 1 are installed in coordination with each other without interference.

[0039] A first through hole 2-1 is symmetrically opened in the middle of the first friction unit 2, and a second through hole 3-1 is symmetrically opened in the middle of the second friction unit 3. The through hole sizes are both φ6 / φ8. The through holes are designed to fasten the screw 4 through the friction unit and the screw hole 1-3, thereby fixing the friction unit to the grinding wheel body 1.

[0040] In this embodiment, the first friction unit 2 and the second friction unit 3 are rectangular structures with a thickness of 20-30 mm, an overall height of 60-80 mm, and a number of 30-40; when the first friction unit and the second friction unit are installed in conjunction with the grinding wheel body, there is a height difference between the top and bottom surfaces of the friction unit and the top and bottom surfaces of the grinding wheel body 1. Specifically, the top surfaces of the first friction unit 2 and the second friction unit 3 are 10-20 mm lower than the top surface of the grinding wheel body 1, and the bottom surfaces of the first friction unit 2 and the second friction unit 3 protrude 30-40 mm from the bottom surface of the grinding wheel body 1; the design of the bottom surface height difference allows the friction unit to be repaired and continued to be used after wear, and a single grinding wheel can repair the friction unit 10-15 times, greatly reducing maintenance costs.

[0041] The bottom surfaces of the first friction unit 2 and the second friction unit 3 are provided with 2-3 inwardly concave friction grooves 5, and the designed depth of the friction grooves 5 is 5-15mm. The friction grooves 5 can effectively reduce the working area of the grinding wheel, reduce friction resistance, and improve the grinding effect.

[0042] The installation and use of the abrasive grinding wheel are as follows: First, place the grinding wheel body 1 horizontally. Next, align the first friction unit 2 with the outer edge groove 1-1 of the grinding wheel body 1, with the screw hole 1-3 concentrically aligned with the first through-hole 2-1. Next, align the second friction unit 3 with the inner edge groove 1-2 of the grinding wheel body 1, with the screw hole 1-3 concentrically aligned with the second through-hole 3-1. Finally, insert the fastening screw 4 sequentially through the first through-hole 2-1 (or second through-hole 3-1) and the screw hole 1-3 to complete the assembly of the friction unit. During use, the bottom surface of the grinding wheel friction unit contacts the double end surfaces of the carbon-ceramic brake disc. The grinding wheel rotates clockwise and the carbon-ceramic brake disc rotates counterclockwise, and the two frictionally cooperate to grind the double end surfaces of the carbon-ceramic brake disc.

[0043] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A sand tile grinding wheel suitable for double end surface grinding of carbon ceramic brake disc, characterized in that: include: The main body of the grinding wheel is a disc-shaped structure; A plurality of grooves are mirror-imaged and distributed on the inner and outer edges of the grinding wheel body; A plurality of first friction units are evenly distributed on the grooves on the outer edge of the grinding wheel body to form a disc-shaped structure; A plurality of second friction units are evenly distributed on the groove on the inner edge of the grinding wheel body to form a disc-shaped structure; The top surfaces of the first friction unit and the second friction unit are lower than the top surface of the grinding wheel body; and the bottom surfaces of the first friction unit and the second friction unit are protruding from the bottom surface of the grinding wheel body.

2. The abrasive grinding wheel according to claim 1, characterized in that The first friction unit and the second friction unit are connected to the screw holes on the groove through fastening screws.

3. The abrasive grinding wheel according to claim 1, characterized in that The first friction unit and the second friction unit are rectangular structures.

4. The abrasive grinding wheel according to claim 1, wherein: The bottom surfaces of the first friction unit and the second friction unit have inwardly recessed friction grooves.

5. The abrasive grinding wheel according to claim 1, characterized in that The grinding wheel main body is a chrome corundum grinding wheel.

6. The abrasive grinding wheel according to claim 1, characterized in that Rounded corners are provided at both ends of the inner side of the groove.

7. The abrasive grinding wheel according to claim 1, characterized in that Both ends of the outer side of the groove are provided with chamfers.

8. The abrasive grinding wheel according to claim 1, wherein: Both ends of the inner side surfaces of the first friction unit and the second friction unit are provided with rounded corners.

Images