Riveting process for manufacturing brake disc body

Abstract

The invention discloses a riveting process for brake disc body manufacturing, and relates to the technical field of brake disc manufacturing. The brake disc body structure comprises a cast iron ring, an aluminum cap and a riveting piece, the cast iron ring comprises a cast iron disc body, a cast iron ring body is arranged at the top of the cast iron disc body, and a cast iron annular groove is formed in the cast iron disc body and located on the outer side of the cast iron ring body; the aluminum cap comprises an aluminum disc body, an aluminum ring body is arranged below the aluminum disc body, the bottom of the aluminum ring body is enough to be inserted into the cast iron annular groove, and when the aluminum ring body is completely inserted into the cast iron annular groove, the top of the cast iron ring body does not make contact with the aluminum disc body. According to the riveting process for manufacturing the brake disc body, the cast iron ring and the aluminum cap which are relatively conventional in shape are connected in a riveting mode, the used parts are all conventional in shape, production can be completed only through simple pressurization and trepanning without a mold, the cost expenditure is reduced to a great extent, and the riveting process is suitable for large-scale production.

Description

Technical Field

[0001] The invention relates to the technical field of brake disc manufacturing, and in particular to a riveting process for manufacturing a brake disc body. Background Art

[0002] The brake disc is a braking device for braking and emergency braking of a car. The braking methods of a car can be divided into disc brakes and drum brakes. Disc brakes have better heat dissipation than drum brakes, and are not prone to thermal decay under high-speed braking, so their high-speed braking effect is good. Disc brakes are mainly composed of brake calipers and brake discs. The brake disc is a round disc and is the key to braking. With the development of the automobile industry, the performance requirements for brake discs are getting higher and higher.

[0003] In the prior art, brake discs are usually manufactured by melting, casting and welding. Among them, the melt casting method can produce an integrally formed brake disc, but each type of brake disc needs to prepare a corresponding mold, and because the shape of the brake disc is unconventional, the manufacturing cost of the mold is relatively high, the production cost is huge and the applicability is not strong; When welding is used, if large-area welding is used, it will undoubtedly greatly increase the cost. If partial spot welding is used, it will lead to poor stability of the brake disc, shortening the service life and posing certain safety hazards. There are many welding parameters. Even if the best electric welding solution is used, each brake disc requires a corresponding solution, and a large number of experimental tests are required to obtain the best solution. Therefore, with the development of the automotive industry, the welding method is gradually becoming unsuitable for the current environment. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a riveting process for manufacturing a brake disc body, which solves the problems existing in the prior art.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a brake disc body structure, including a cast iron ring, an aluminum cap and a riveted part; The cast iron ring comprises a cast iron disc, a cast iron ring body is arranged on the top of the cast iron disc, and a cast iron annular groove is arranged on the cast iron disc and on the outer side of the cast iron ring body; The aluminum cap includes an aluminum disk body, and an aluminum ring body is arranged below the aluminum disk body. The bottom of the aluminum ring body is sufficient to be inserted into the cast iron annular groove, and when the aluminum ring body is fully inserted into the cast iron annular groove, the top of the cast iron ring body does not contact the aluminum disk body.

[0006] Preferably, a mounting hole is opened on the aluminum plate body according to product requirements, and the cast iron ring and the aluminum cap are integrally formed.

[0007] A riveting process A for manufacturing a brake disc body, including the brake disc body structure described above, is specifically performed as follows: S11, purchased parts, including cast iron rings, aluminum caps and rivets; S12, putting the aluminum cap on the cast iron ring and making them relatively fixed, ensuring that the aluminum ring body is inserted into the cast iron annular groove, and there is a gap A between the bottom surface of the aluminum ring body and the bottom surface of the cast iron annular groove; S13, a limiting hole for inserting the rivet is opened on the aluminum ring body, the limiting hole passes through the aluminum ring body and the cast iron ring body at the same time, and when the plane where the bottom surface of the cast iron plate body is located is parallel to the horizontal plane, the center line of the limiting hole is parallel to the horizontal plane; S14, inserting the riveted part into the limiting hole; S15. Move the aluminum cap downward relative to the cast iron ring so that the spacing A is gradually reduced to a set value, thereby completing the production of the brake disc body.

[0008] A riveting process B for manufacturing a brake disc body includes the brake disc body structure described above, and the specific operations are as follows: S21, purchased parts, including cast iron rings, aluminum caps and rivets; S22, the aluminum cap is placed on the cast iron ring, and the two are relatively fixed, and it is necessary to ensure that the aluminum ring body is inserted into the cast iron annular groove, and there is no gap between the bottom surface of the aluminum ring body and the bottom surface of the cast iron annular groove; S23, a limiting hole for inserting the rivet is opened on the aluminum ring body, the limiting hole passes through the aluminum ring body and the cast iron ring body at the same time, and when the plane where the bottom surface of the cast iron plate body is located is parallel to the horizontal plane, the center line of the limiting hole is parallel to the horizontal plane; S24, inserting the riveted part into the limiting hole; S25. Define the outer side of the rivet as a fixed surface, and the inner side as a pressure surface. Apply pressure to the pressure surface in a direction perpendicular to the fixed surface. The intensity of the pressure is determined according to the size of the rivet and the limiting hole, as well as the material of the rivet and the product requirements, thereby completing the production of the brake disc body.

[0009] Preferably, in step S11 or step S21, when purchasing components, an aluminum plate with mounting holes or an aluminum plate without mounting holes can be selected. The specific selection depends on the estimated cost. When an aluminum plate without mounting holes is selected, it is necessary to perform additional drilling operations according to product requirements.

[0010] Preferably, in step S12, the size of the interval A is determined according to product requirements and usage of the fixing device.

[0011] Preferably, in step S13 or step S23, the number of limiting holes is determined according to process requirements, and the plurality of limiting holes are arranged in a ring shape with the central axis of the aluminum ring body as the axis, and the extension line of the center line of the limiting hole intersects with the central axis of the aluminum ring body.

[0012] Preferably, in step S15, the specific size of the set value is determined according to the process requirements. By default, it is 1 cm, and an error of ±0.1 cm is allowed.

[0013] (III) Beneficial effects The present invention provides a riveting process for manufacturing a brake disc body. It has the following beneficial effects: (1) The brake disc body is manufactured using a riveting process, which connects a relatively conventional cast iron ring and an aluminum cap. The shapes of the parts used are all conventional, and no mold is required. Production can be completed by simply applying pressure and drilling holes, which greatly reduces cost expenditure and is suitable for large-scale production.

[0014] (2) The riveting process used in the manufacture of the brake disc body has parameters that determine the stability between components, namely the number and type of rivets. The parameters are relatively simple. Compared with welding, a relatively safe solution can be obtained without a large number of experiments. This further reduces cost expenditure while ensuring product quality. At the same time, it can also be gradually improved as the demand of the automotive industry increases, thereby increasing the applicability of the entire production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a cross-sectional view of the cast iron ring of the present invention; Figure 2 is a top view of the cast iron ring of the present invention; Figure 3 is a cross-sectional view of the aluminum cap of the present invention; Figure 4 A top view of the aluminum cap of the present invention; Figure 5 is a schematic diagram of the change of the riveted parts in step S15; Figure 6 It is a schematic diagram of the pressure application of the riveted parts in step S25.

[0016] In the figure: 11, cast iron ring body; 12, cast iron annular groove; 13, cast iron disc body; 21, aluminum disc body; 22, aluminum ring body. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-6 ,The present invention provides a technical solution: a brake disc body structure, including a cast iron ring, an aluminum cap and a riveted part; The cast iron ring comprises a cast iron disc 13, a cast iron ring body 11 is arranged on the top of the cast iron disc 13, and a cast iron annular groove 12 is arranged on the cast iron disc 13 and outside the cast iron ring body 11; The aluminum cap includes an aluminum disk body 21, and an aluminum ring body 22 is arranged below the aluminum disk body 21. The bottom of the aluminum ring body 22 is sufficient to be inserted into the cast iron annular groove 12, and when the aluminum ring body 22 is fully inserted into the cast iron annular groove 12, the top of the cast iron ring body 11 does not contact the aluminum disk body 21. The aluminum disk body 21 is provided with a mounting hole according to product requirements, and the cast iron ring and the aluminum cap are both integrally formed.

[0019] A riveting process A for manufacturing a brake disc body, including the brake disc body structure described above, is specifically performed as follows: S11, purchased parts, the purchased parts include cast iron rings, aluminum caps and rivets, wherein when purchasing parts, an aluminum plate 21 with mounting holes or an aluminum plate 21 without mounting holes can be selected, and the specific selection is determined according to the estimated cost. When the aluminum plate 21 without mounting holes is selected, it needs to be drilled according to product requirements; S12, the aluminum cap is placed on the cast iron ring, and the two are relatively fixed, and the aluminum ring body 22 must be inserted into the cast iron annular groove 12, and there is a spacing A between the bottom surface of the aluminum ring body 22 and the bottom surface of the groove of the cast iron annular groove 12, wherein the size of the spacing A is determined according to product requirements and the use of the fixing equipment; S13, a limiting hole for inserting a rivet is opened on the aluminum ring body 22, the limiting hole passes through the aluminum ring body 22 and the cast iron ring body 11 at the same time, and when the plane where the bottom surface of the cast iron plate body 13 is located is parallel to the horizontal plane, the center line of the limiting hole is parallel to the horizontal plane, wherein the number of limiting holes is determined according to the process requirements, and the plurality of limiting holes are arranged in a circular array with the center axis of the aluminum ring body 22 as the axis, and the extension line of the center line of the limiting hole intersects with the center axis of the aluminum ring body 22; S14, inserting the riveted part into the limiting hole; S15. Move the aluminum cap downward relative to the cast iron ring so that the spacing A is gradually reduced to a set value, thereby completing the production of the brake disc body. The specific size of the set value is determined according to the process requirements. By default, it is 1 cm, and an error of ±0.1 cm is allowed.

[0020] A riveting process B for manufacturing a brake disc body includes the above-mentioned brake disc body structure, and the specific operations are as follows: S21, purchased parts, the purchased parts include cast iron rings, aluminum caps and rivets. When purchasing parts, an aluminum plate 21 with mounting holes or an aluminum plate 21 without mounting holes can be selected. The specific selection depends on the estimated cost. When the aluminum plate 21 without mounting holes is selected, it needs to be drilled according to product requirements. S22, the aluminum cap is placed on the cast iron ring, and the two are relatively fixed, and it is necessary to ensure that the aluminum ring body 22 is inserted into the cast iron annular groove 12, and there is no gap between the bottom surface of the aluminum ring body 22 and the bottom surface of the groove of the cast iron annular groove 12; S23, a limiting hole for inserting a rivet is opened on the aluminum ring body 22, the limiting hole passes through the aluminum ring body 22 and the cast iron ring body 11 at the same time, and when the plane where the bottom surface of the cast iron plate body 13 is located is parallel to the horizontal plane, the center line of the limiting hole is parallel to the horizontal plane, the number of limiting holes is determined according to the process requirements, and the plurality of limiting holes are arranged in a circular array with the center axis of the aluminum ring body 22 as the axis, and the extension line of the center line of the limiting hole intersects with the center axis of the aluminum ring body 22; S24, inserting the riveted part into the limiting hole; S25. Define the outer side of the rivet as a fixed surface, and the inner side as a pressure surface. Apply pressure to the pressure surface in a direction perpendicular to the fixed surface. The intensity of the pressure is determined according to the size of the rivet and the limiting hole, as well as the material of the rivet and the product requirements, thereby completing the production of the brake disc body.

[0021] It should be noted that the present application provides two riveting processes, namely a riveting process A for manufacturing a brake disc body and a riveting process B for manufacturing a brake disc body. The differences between the two are as follows: 1. In terms of stability, the riveting process A used in manufacturing the brake disc body is inferior to the riveting process B used in manufacturing the brake disc body; 2. The riveting process B used in the manufacture of the brake disc body is pressurized horizontally, and it is necessary to align the corresponding positions of the riveted parts. Therefore, the riveting process B used in the manufacture of the brake disc body is relatively superior to the riveting process A used in the manufacture of the brake disc body in terms of equipment cost and production efficiency.

[0022] In summary, the brake disc body is manufactured using a riveting process, in which relatively conventional cast iron rings and aluminum caps are connected by riveting. The shapes of the parts used are all conventional, and no molds are required. Production can be completed by simply pressurizing and drilling holes, which greatly reduces cost expenditure and is suitable for large-scale production.

[0023] The brake disc body is manufactured using a riveting process. The parameters that determine the stability between components are the number and model of rivets. The parameters are relatively simple. Compared with welding, a relatively safe solution can be obtained without a large number of experiments. This further reduces cost expenditure while ensuring product quality. At the same time, it can also be gradually improved as the demand of the automotive industry increases, increasing the applicability of the entire production line.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake disc body structure, characterized in that: Includes cast iron ring, aluminum cap and rivets; The cast iron ring comprises a cast iron disc (13), a cast iron ring body (11) is arranged on the top of the cast iron disc (13), and a cast iron annular groove (12) is arranged on the cast iron disc (13) and located outside the cast iron ring body (11); The aluminum cap comprises an aluminum disk body (21), an aluminum ring body (22) is arranged below the aluminum disk body (21), the bottom of the aluminum ring body (22) is sufficient to be inserted into the cast iron annular groove (12), and when the aluminum ring body (22) is completely inserted into the cast iron annular groove (12), the top of the cast iron ring body (11) does not contact the aluminum disk body (21).

2. The brake disc body structure according to claim 1, characterized in that: The aluminum plate (21) is provided with a mounting hole according to product requirements, and the cast iron ring and the aluminum cap are integrally formed.

3. A riveting process A for manufacturing a brake disc body, characterized in that: The brake disc body structure according to claim 1 is specifically operated as follows: S11, purchased parts, including cast iron rings, aluminum caps and rivets; S12, placing the aluminum cap on the cast iron ring and fixing the two relatively to each other, ensuring that the aluminum ring body (22) is inserted into the cast iron annular groove (12), and a spacing A exists between the bottom surface of the aluminum ring body (22) and the bottom surface of the groove of the cast iron annular groove (12); S13, a limiting hole for inserting a rivet is formed on the aluminum ring body (22), the limiting hole passing through the aluminum ring body (22) and the cast iron ring body (11) at the same time, and when the plane where the bottom surface of the cast iron plate body (13) is located is parallel to the horizontal plane, the center line of the limiting hole is parallel to the horizontal plane; S14, inserting the riveted part into the limiting hole; S15. Move the aluminum cap downward relative to the cast iron ring so that the spacing A is gradually reduced to a set value, thereby completing the production of the brake disc body.

4. A riveting process B for manufacturing a brake disc body, characterized in that: The brake disc body structure according to claim 1 is specifically operated as follows: S21, purchased parts, including cast iron rings, aluminum caps and rivets; S22, placing the aluminum cap on the cast iron ring and fixing the two relatively to each other, ensuring that the aluminum ring body (22) is inserted into the cast iron annular groove (12), and that there is no gap between the bottom surface of the aluminum ring body (22) and the bottom surface of the groove of the cast iron annular groove (12); S23, a limiting hole for inserting a rivet is formed on the aluminum ring body (22), the limiting hole passing through the aluminum ring body (22) and the cast iron ring body (11) at the same time, and when the plane where the bottom surface of the cast iron plate body (13) is located is parallel to the horizontal plane, the center line of the limiting hole is parallel to the horizontal plane; S24, inserting the riveted part into the limiting hole; S25. Define the outer side of the rivet as a fixed surface, and the inner side as a pressure surface. Apply pressure to the pressure surface in a direction perpendicular to the fixed surface. The intensity of the pressure is determined according to the size of the rivet and the limiting hole, as well as the material of the rivet and the product requirements, thereby completing the production of the brake disc body.

5. The riveting process for manufacturing a brake disc body according to any one of claims 3 or 4, characterized in that: In step S11 or step S21, when purchasing components from outside, an aluminum plate (21) with mounting holes or an aluminum plate (21) without mounting holes may be selected. The specific selection is determined based on the estimated cost. When an aluminum plate (21) without mounting holes is selected, additional drilling operations need to be performed on it according to product requirements.

6. The riveting process for manufacturing a brake disc body according to claim 3, characterized in that: In step S12, the size of the interval A is determined according to product requirements and usage of the fixing device.

7. The riveting process for manufacturing a brake disc body according to any one of claims 3 or 4, characterized in that: In step S13 or step S23, the number of the limiting holes is determined according to process requirements, and the plurality of limiting holes are arranged in a circular array with the central axis of the aluminum ring body (22) as the axis, and the extension line of the center line of the limiting hole intersects with the central axis of the aluminum ring body (22).

8. The riveting process for manufacturing a brake disc body according to claim 3, characterized in that: In step S15, the specific size of the set value is determined according to the process requirements. By default, it is 1 cm, and an error of ±0.1 cm is allowed.

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