Automobile hub spinning die backing ring structure

Abstract

The utility model discloses an automobile hub spinning die backing ring structure which comprises a lower die, an inner die is fixed in the lower die in a threaded connection mode through a bolt, an ejection shaft is arranged at the center of the bottom of the lower die, one end of the ejection shaft penetrates through the inner die in a sliding mode and then is fixed with an ejection die in the inner die in a threaded connection mode through a bolt, and a casting blank assembly is arranged at the top of the ejection die. A first casting blank, a second casting blank and a third casting blank of the casting blank assembly are fixedly connected with the lower die in a screwed mode, the bottoms of the first casting blank, the second casting blank and the third casting blank are connected with a first rotating blank, a second rotating blank and a third rotating blank respectively, and the bottoms of the first rotating blank, the second rotating blank and the third rotating blank are connected with a first backing ring, a second backing ring and a third backing ring respectively. According to the lower die, the casting blank assemblies can be rapidly replaced according to the width requirements of rims of different sizes to conduct spinning machining on the hubs of different rim widths, the requirements of different rim specifications can be rapidly met by replacing the corresponding casting blank assemblies, rapidness and convenience are achieved, time and labor are saved, cost is saved, and the machining efficiency of the hubs is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive wheel spinning, and particularly relates to a structure of a spinning die cushion ring for an automotive wheel. Background Technique

[0002] At present, new energy vehicles are developing rapidly. With the increasing requirements for the lightweight of the body and the continuous extension of the endurance of new energy vehicles, the requirements for the rigidity, load capacity and lightweight of the wheels are becoming more and more strict. Simply put, as the vehicle becomes lighter, the wheels also need to become lighter, and the performance such as load and safety needs to be improved. Since new energy vehicles are equipped with larger wheel sizes and wider wheel spacings, the requirements for diverse production of spinning wheels are also getting higher and higher.

[0003] Currently, spin-cast wheels are generally selected for new energy vehicles. The spin-casting process (as shown in Figure 1 ) is described as using a mold to cast a wheel blank, and then the rim of the blank is made into a single rim width specification by a spinning cutter on a spinning machine. The thickness of the finished rim is about 5 mm. The weight of the wheel becomes lighter, the density increases, and the load and safety performance are improved. In order to increase the driving stability of new energy vehicles, wheels of the same size are equipped, and the rim width of the rear wheel is one specification larger than that of the front wheel. For example, if the front wheel is of the 2085 specification size, the corresponding rear wheel is of the 2090 specification size. This directly requires diverse specification parameters for the wheel spacing, and the requirements for multi-specification production of a spinning wheel mold by one machine are also getting higher and higher. However, when traditional spinning molds produce products with different rim width specifications, the entire spinning lower mold with relative dimensions needs to be replaced, which is time-consuming and laborious, and greatly reduces the processing efficiency of the wheels. Content of the Utility Model

[0004] The purpose of the utility model is to provide a structure of a spinning die cushion ring for an automotive wheel to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A structure of a spinning die cushion ring for an automotive wheel, comprising:

[0006] A lower mold, an inner mold is fixedly bolted inside the lower mold, a top-out shaft is arranged at the center of the bottom of the lower mold, one end of the top-out shaft slidably penetrates through the inner mold and is fixedly bolted to a top-out mold inside the inner mold, and a casting embryo assembly for spinning an automotive wheel is arranged at the top of the top-out mold. By fixedly bolting the first casting embryo, the second casting embryo, and the third casting embryo of the casting embryo assembly to the lower mold, different-sized first casting embryos, second casting embryos, and third casting embryos can be replaced when the lower mold spins different rim widths.

[0007] Preferably, the bottoms of the first casting embryo, the second casting embryo, and the third casting embryo are respectively connected to a first spinning embryo, a second spinning embryo, and a third spinning embryo.

[0008] Preferably, the bottoms of the first spinning embryo, the second spinning embryo, and the third spinning embryo are respectively connected with a first cushion ring, a second cushion ring, and a third cushion ring.

[0009] Preferably, an upper die is provided at the top of the ejector die.

[0010] Preferably, a spring is sleeved on the surface of the ejector shaft, and the two ends of the spring are respectively connected with the ejector shaft and the lower die.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: when the lower die is used to spin-dry the hubs with different sizes, the diversification of the rim width specifications can be realized by replacing the casting embryo components with the same hub size but different rim widths. When it is necessary to produce a rim width of 2085 specification size, the first casting embryo is placed on the top of the ejector die, and the first spinning embryo is sleeved on the surface of the lower die. The first cushion ring is installed on the lower die, and the bolt passing through the bolt hole at the bottom of the lower die is used to fix the first cushion ring, so as to fix the first casting embryo on the surface of the lower die. Thus, the hub blank is spin-dried by the spinning tool to spin-dry the hub, and a rim width of 2085 specification size is obtained. When it is necessary to produce a hub with a rim width of 2090 specification size, the bolt at the bottom of the lower die can be screwed to disassemble the first casting embryo, and the above operation is repeated to place the second casting embryo on the top of the ejector die, so that the hub blank is spin-dried by the spinning tool to obtain a rim width of 2090 specification size. When it is necessary to produce a hub with a rim width of 2010 specification size, the bolt at the bottom of the lower die can be screwed to disassemble the second casting embryo, and the above operation is repeated to place the third casting embryo on the top of the ejector die, so that the hub blank is spin-dried by the spinning tool to obtain a rim width of 2010 specification size. Therefore, the lower die can quickly replace the casting embryo components according to the requirements of different rim width sizes to spin-dry the hubs with different rim widths. By replacing the corresponding casting embryo components, the requirements of different rim specifications can be quickly solved, which is fast, convenient, time-saving, labor-saving, cost-saving, and greatly improves the processing efficiency of the hubs. Description of the Drawings

[0012] Figure 1 It is a structural schematic diagram of the prior art;

[0013] Figure 2 It is a structural schematic diagram of the present utility model;

[0014] Figure 3 It is a structural schematic diagram of the first casting embryo of the present utility model;

[0015] Figure 4 It is a structural schematic diagram of the second casting embryo of the present utility model;

[0016] Figure 5 It is a structural schematic diagram of the third casting embryo of the present utility model;

[0017] Figure 6This is a schematic structural diagram of the first spacer ring, the second spacer ring, and the third spacer ring of the present utility model.

[0018] In the figure: 1, lower die; 2, inner die; 3, ejection shaft; 4, ejection die; 5, first blank; 6, second blank; 7, third blank; 8, first swaged blank; 9, second swaged blank; 10, third swaged blank; 11, first spacer ring; 12, second spacer ring; 13, third spacer ring; 14, upper die; 15, spring; 16, rotary cutter; 17, blank assembly. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides a Figures 1-6 spacer ring structure for a rotary press die of an automobile wheel hub as shown, including:

[0021] A lower die 1, an inner die 2 is fixedly bolted inside the lower die 1, an ejection shaft 3 is provided at the center of the bottom of the lower die 1, one end of the ejection shaft 3 slidably penetrates through the inner die 2 and is fixedly bolted to an ejection die 4 inside the inner die 2, and a blank assembly 17 for rotary pressing an automobile wheel hub is provided at the top of the ejection die 4. By fixedly bolting the first blank 5, the second blank 6, and the third blank 7 of the blank assembly to the lower die 1, different-sized first blanks 5, second blanks 6, and third blanks 7 can be replaced when the lower die 1 is rotary pressing different rim width distances.

[0022] The bottoms of the first blank 5, the second blank 6, and the third blank 7 are respectively connected to a first swaged blank 8, a second swaged blank 9, and a third swaged blank 10, and the bottoms of the first swaged blank 8, the second swaged blank 9, and the third swaged blank 10 are respectively connected to a first spacer ring 11, a second spacer ring 12, and a third spacer ring 13; a blank with a 2085 specification size can be formed by the first blank 5, the first swaged blank 8, and the first spacer ring 11;

[0023] A blank with a 2090 specification size can be formed by the second blank 6, the second swaged blank 9, and the second spacer ring 12;

[0024] A blank with a 2010 specification size can be formed by the third blank 7, the third swaged blank 10, and the third spacer ring 13.

[0025] An upper die 14 is provided at the top of the ejection die 4, and the top of the lower die 1 is pressed by the upper die 14 to fix the wheel hub to be processed into the lower die 1.

[0026] A spring 15 is sleeved on the surface of the ejector shaft 3, and the two ends of the spring 15 are respectively connected to the ejector shaft 3 and the lower die 1. The ejector shaft 3 at the bottom of the lower die 1 can eject the hub in the lower die 1 after the lower die 1 spins the hub. When the ejector shaft 3 ejects, the spring 15 can be stretched, and a part of the impact force can be absorbed through the spring 15 to protect the ejector shaft 3 and the lower die 1.

[0027] For this automotive wheel hub spinning die spacer ring structure, when the lower die 1 is used to spin-process hubs of different sizes, the diversification of the rim width specifications can be achieved by replacing the blank casting components 17 with the same hub size but different rim widths. When it is necessary to produce a rim width of the 2085 specification size, the first blank casting 5 is placed on the top of the ejector die 4, and the first spinning blank 8 is sleeved on the surface of the lower die 1. The first spacer ring 11 is installed on the lower die 1 and fixed to the first spacer ring 11 by bolts passing through the bolt holes at the bottom of the lower die 1, so as to fix the first blank casting 5 on the surface of the lower die 1. Then, the hub blank is spin-processed by the spinning tool 16 to obtain a rim width of the 2085 specification size;

[0028] When it is necessary to produce a hub with a rim width of the 2090 specification size, the bolts at the bottom of the lower die 1 can be screwed to disassemble the first blank casting 5, and the above operation is repeated to place the second blank casting 6 on the top of the ejector die 4, and the bolts are screwed to fix the second spacer ring 12, so that the hub blank is spin-processed by the spinning tool 16 to obtain a rim width of the 2090 specification size;

[0029] When it is necessary to produce a hub with a rim width of the 2010 specification size, the bolts at the bottom of the lower die 1 can be screwed to disassemble the second blank casting 6, and the above operation is repeated to place the third blank casting 7 on the top of the ejector die 4, and the bolts are screwed to fix the third spacer ring 13, so that the hub blank is spin-processed by the spinning tool 16 to obtain a rim width of the 2010 specification size. Thus, the lower die 1 can quickly replace the blank casting components 17 according to the requirements of different rim widths to spin-process hubs of different rim widths. By replacing the corresponding blank casting components 17, the requirements of different rim specifications can be quickly solved, which is fast, convenient, time-saving, labor-saving, cost-saving, and greatly improves the processing efficiency of the hub.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spinning die backing ring structure for an automobile wheel hub, characterized in that: include: A lower mold (1) is provided, wherein an inner mold (2) is fixed in the lower mold (1) by bolts, an ejector shaft (3) is provided at the center of the bottom of the lower mold (1), one end of the ejector shaft (3) slides through the inner mold (2) and is fixed to an ejector mold (4) in the inner mold (2) by bolts, and a casting blank assembly (17) for spinning an automobile wheel hub is provided at the top of the ejector mold (4), and a first casting blank (5), a second casting blank (6), and a third casting blank (7) of the casting blank assembly are fixed to the lower mold (1) by bolts, so that the lower mold (1) can replace the first casting blank (5), the second casting blank (6), and the third casting blank (7) of different sizes when spinning different rim widths.

2. The automobile wheel hub spinning die backing ring structure according to claim 1, characterized in that: The bottoms of the first casting embryo (5), the second casting embryo (6) and the third casting embryo (7) are respectively connected to a first rotating embryo (8), a second rotating embryo (9) and a third rotating embryo (10).

3. The automobile wheel hub spinning die backing ring structure according to claim 2, characterized in that: The bottoms of the first rotary embryo (8), the second rotary embryo (9) and the third rotary embryo (10) are respectively connected with a first gasket ring (11), a second gasket ring (12) and a third gasket ring (13).

4. The automobile wheel hub spinning die backing ring structure according to claim 1, characterized in that: An upper mold (14) is provided on the top of the ejection mold (4).

5. The automobile wheel hub spinning die backing ring structure according to claim 1, characterized in that: A spring (15) is sleeved on the surface of the ejection shaft (3), and two ends of the spring (15) are respectively connected to the ejection shaft (3) and the lower mold (1).

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