CN118023848A - Production method of high-strength light rim - Google Patents
Production method of high-strength light rim Download PDFInfo
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- CN118023848A CN118023848A CN202410128626.4A CN202410128626A CN118023848A CN 118023848 A CN118023848 A CN 118023848A CN 202410128626 A CN202410128626 A CN 202410128626A CN 118023848 A CN118023848 A CN 118023848A
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- rim
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 230000004323 axial length Effects 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 6
- 238000007514 turning Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 230000030279 gene silencing Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a production method of a high-strength light rim, which comprises the following steps: preparing a cylindrical blank of the rim unit; one end edge of a cylindrical blank of the rim unit is outwards turned to form a turned edge A; processing the annular sleeve blank into an annular boss with one end having a cylinder mouth inner diameter matched with the outer diameter of the rim cylinder blank and the other end being provided with a coaxial center and protruding outwards; processing the annular boss to form a concentric tread to obtain an annular sleeve; the annular sleeve is sleeved on the cylindrical blank of the rim unit, so that a cylinder opening at one end of the tread is contacted with the flanging A; the edge of the flanging A is folded and then contacted with the tread to be fixed; the cylindrical blank of the rim unit is turned inwards at one end far away from the turned-over edge A to form a turned-over edge B; and splicing and fixing the two cylindrical blanks of the rim units into a rim through the flange B. As can be seen from the above process, the production method of the high-strength light rim has few production procedures and is convenient for enterprises to rapidly produce; the production cost investment is relatively small.
Description
Technical Field
The invention relates to the technical field of rim processing production, in particular to a production method of a high-strength lightweight rim.
Background
The hub is the rotating part of the wheel core, which is connected with the inner profile steel of the tire through the upright post, namely, the metal part which supports the center of the tire and is arranged on the shaft. Also called rim, steel rim, wheels and tyre bell. The hub has various types according to the diameter, width, forming mode and materials.
The hub is generally fixedly connected by the hub and the spoke coaxial center. For the hub, the weight of the hub affects the energy consumption of the vehicle, and the increase of the weight of the hub leads to the increase of the energy consumption of the vehicle, so that the control requirement on the weight in the production process of the hub is high, and therefore, the person skilled in the art needs to reduce the respective weight as much as possible at the rim and spoke angles. Also, since the hub is the only part of the vehicle that contacts the ground, its strength requirements are very high, whereas the lighter the weight of the hub, the lower the strength relative thereto under conventional techniques or conventional constructions. So that an effective balance point cannot be achieved between the light weight and high strength of the current hub. The wheel hub comprises a wheel spoke and a wheel rim, and the weight reduction of the wheel spoke can be effectively controlled through the structural modeling of the wheel spoke and the metal consumption; however, the rim has the problems that the weight reduction difficulty is high because the materials of the rim are relatively fixed and the thickness requirement of the rim is standard, and the rim is particularly required to be compatible with the mechanical properties, so that the technical problem which needs to be solved by the technicians in the field is how to produce the rim with high strength and light weight.
In addition, in the existing manufacturing technology of the hub, a hub blank is cast through molten aluminum, and then machining is carried out to obtain a hub product. In order to achieve the aim of weight reduction of the hub, the wall thickness of the rim is required to be controlled to be relatively thin. However, the thinner rim cavity slows down the flow of molten aluminum, which results in a very rapid solidification and thus in an inability of the molten aluminum to flow down smoothly to the bottom of the cavity, eventually leading to scrap. If the problem is to be solved, the technical scheme is that the temperature of the aluminum liquid is increased, so that the aluminum liquid is ensured not to solidify before the bottom of the cavity is completely filled. However, the increase in the temperature of the aluminum liquid results in an increase in the grain size of the aluminum, which in turn results in a lower strength of the solidified aluminum, limiting the service life of the hub. Therefore, for hubs with higher strength requirements, the method cannot be applied, the casting can only be performed by ensuring enough thickness of the hub blank rim at present, and then the cast blank is machined to obtain thinner rim wall thickness, but the production mode needs enough machining allowance for cutting, so that the waste of aluminum materials and the increase of production cost are caused.
Disclosure of Invention
The invention aims at: the method overcomes the defects of the prior art, and provides a production method of the high-strength light rim, which has few production procedures and is convenient for enterprises to rapidly produce; in addition, the equipment involved in the production process only needs one or two of stamping equipment and spinning equipment, welding equipment and cutting equipment, so that the production cost investment is relatively small.
The technical scheme adopted by the invention is as follows:
the production method of the high-strength light rim comprises the following steps:
s1, preparing a cylindrical blank of a rim unit with a circular section according to the circumferential length and the axial length of the cylindrical blank of the rim;
S2, turning over the edge of a cylinder mouth at one end of the cylindrical blank of the rim unit outwards to form a flanging A;
s3, preparing an annular sleeve blank for matching and matched connection with the cylindrical blank of the rim unit obtained in the step S1;
s4, processing the annular sleeve blank into an outwardly protruding annular boss with one end having a cylinder mouth inner diameter matched with the outer diameter of the rim cylindrical blank and the other end being coaxially arranged through flaring or necking;
S5, necking the bending part of the arc surface of the annular boss and the arc surface of the annular boss to form a concentric tread, and forming a concentric protruding ring between the tread and the bending part of the arc surface of the annular boss to further obtain an annular sleeve;
s6, sleeving and fixing the annular sleeve obtained in the step S5 on the outer side wall of the rim unit cylindrical blank provided with the flanging obtained in the step S2, and enabling a nozzle at one end of the annular sleeve, which is provided with the tread, to be in contact with the flanging A of the rim unit cylindrical blank;
s7, turning the edge of the flanging A of the cylindrical blank of the rim unit obtained in the step S6 to one side of the tread, and enabling the edge of the flanging A to be in contact with and fixed on the tread;
S8, according to the axial length of the rim, the cylindrical blank of the rim unit obtained in the step S7 is turned inwards to form a flanging B away from a cylinder opening at one end of the flanging A;
S9, according to the axial length of the rim, the flanges B of the two rim unit cylindrical blanks, which are obtained in the step S8 and are matched with the axial length of the rim, are subjected to concentric splicing and fixing, so that the rim is obtained, and a tire accommodating groove is formed between the outer side walls of the two rim unit cylindrical blanks and an arc slope plate connected with the annular boss and the annular sleeve.
In a further improvement of the invention, in the step S6, the nozzle at one end of the annular sleeve, which is provided with the tread, is welded and fixed with the flange a of the cylindrical blank of the rim unit.
According to a further improvement scheme, a cylinder mouth at one end of the annular sleeve, which is provided with a tread, is welded, sealed and fixed with a flanging A of a cylindrical blank of the rim unit.
In a still further improvement of the present invention, in the step S6, the nozzle at the end of the annular sleeve far from the tread is welded and fixed to the outer side wall of the cylindrical blank of the rim unit.
According to a further improvement scheme, a cylinder port at one end of the annular sleeve far away from the tread is welded, sealed and fixed with the outer side wall of the cylindrical blank of the rim unit.
According to a further improved scheme, when a cylinder opening at one end of an annular sleeve, which is used for containing a tire tread, is welded and sealed and fixed with a flanging A of a rim unit cylindrical blank, and the cylinder opening at the other end of the annular sleeve, which is far away from the tire tread, is welded and sealed and fixed with the outer side wall of the rim unit cylindrical blank, a silencing device is fixed in an annular cavity surrounded by the annular sleeve, the rim unit cylindrical blank and the flanging, and a vent pipe of the silencing device penetrates out from an arc slope plate connected with the annular boss and the annular sleeve.
In a further improvement of the present invention, in the step S7, the edge of the flange a is welded and fixed with the tread.
According to a further improvement scheme, the edge of the flanging A is welded, sealed and fixed with the tread.
In a further development of the invention, in step S9, the flanges B of the two rim unit cylindrical blanks are sealed and fixed by welding.
The invention has the beneficial effects that:
Firstly, the production method of the high-strength light rim has few production procedures and is convenient for enterprises to rapidly produce; in addition, the equipment involved in the production process only needs one or two of stamping equipment and spinning equipment, welding equipment and cutting equipment, so that the production cost investment is relatively small.
Secondly, the production method of the high-strength light rim effectively reduces the weight of the rim due to the cavity structure at the positions of the tire tread at the two ends of the rim; in addition, the tire tread is directly welded and fixed with the flanging A, and the flanging A is bent and then fixed with the tire tread, so that the strength of the tire tread position to be assembled is improved very high in mechanical property.
Thirdly, according to the production method of the high-strength light rim, the corresponding cylinder mouth of the tread is welded and fixed with the flanging A, the cylinder mouth of the annular sleeve far away from one end of the tread is welded and fixed with the outer side wall of the cylindrical blank of the rim unit, and finally the flanging A is bent and then welded and fixed with the tread, so that the production efficiency of the rim is further improved, the welding process is very convenient and simple, the production and processing difficulty is further reduced, and the production convenience is improved.
Fourth, the production method of the high-strength lightweight rim of the invention can be suitable for processing the cylindrical blanks of the rim units for rims with different offset distances, and finally, the two corresponding cylindrical blanks of the rim units are welded and fixed to obtain the required rim.
Fifth, according to the production method of the high-strength lightweight rim, the annular sleeves at the two ends of the rim in the axial direction and the annular cavities respectively formed between the cylindrical blanks of the rim units at the side of the annular sleeves can be fixed with the silencers, so that the silencing hub can be conveniently modified and produced.
Sixth, the production method of the high-strength lightweight rim of the application adopts the cylindrical blank of the rim unit to prepare the rim, so that the thickness of the rim is relatively low, the weight of the rim is reduced, and the strength of the rim can be effectively ensured; therefore, the contradiction between the thickness of the rim and the strength of the rim, which is not solved in the rim casting process, can not exist.
Drawings
FIG. 1 is a schematic diagram of the production process of the present invention.
Detailed Description
As can be seen from fig. 1, the method for producing the high-strength lightweight rim comprises the following steps:
The method comprises the following steps:
s1, preparing a cylindrical blank of a rim unit with a circular section according to the circumferential length and the axial length of the cylindrical blank of the rim;
S2, turning over the edge of a cylinder mouth at one end of the cylindrical blank of the rim unit outwards to form a flanging A;
s3, preparing an annular sleeve blank for matching and matched connection with the cylindrical blank of the rim unit obtained in the step S1;
s4, processing the annular sleeve blank into an outwardly protruding annular boss with one end having a cylinder mouth inner diameter matched with the outer diameter of the rim cylindrical blank and the other end being coaxially arranged through flaring or necking;
S5, necking the bending part of the arc surface of the annular boss and the arc surface of the annular boss to form a concentric tread, and forming a concentric protruding ring between the tread and the bending part of the arc surface of the annular boss to further obtain an annular sleeve;
s6, sleeving and fixing the annular sleeve obtained in the step S5 on the outer side wall of the rim unit cylindrical blank provided with the flanging obtained in the step S2, and enabling a nozzle at one end of the annular sleeve, which is provided with the tread, to be in contact with the flanging A of the rim unit cylindrical blank;
s7, turning the edge of the flanging A of the cylindrical blank of the rim unit obtained in the step S6 to one side of the tread, and enabling the edge of the flanging A to be in contact with and fixed on the tread;
S8, according to the axial length of the rim, the cylindrical blank of the rim unit obtained in the step S7 is turned inwards to form a flanging B away from a cylinder opening at one end of the flanging A;
S9, according to the axial length of the rim, the flanges B of the two rim unit cylindrical blanks, which are obtained in the step S8 and are matched with the axial length of the rim, are subjected to concentric splicing and fixing, so that the rim is obtained, and a tire accommodating groove is formed between the outer side walls of the two rim unit cylindrical blanks and an arc slope plate connected with the annular boss and the annular sleeve.
In the step S6, the nozzle at one end of the annular sleeve, where the tread is mounted, is welded and fixed with the flange a of the cylindrical blank of the rim unit.
And a cylinder mouth at one end of the annular sleeve, which is provided with a tread, is welded, sealed and fixed with a flanging A of the cylindrical blank of the rim unit.
In the step S6, the cylinder mouth of the annular sleeve far away from one end of the tread is welded and fixed with the outer side wall of the cylindrical blank of the rim unit.
And a cylinder mouth at one end of the annular sleeve far away from the tread is welded, sealed and fixed with the outer side wall of the cylindrical blank of the rim unit.
When the cylinder mouth at one end of the annular sleeve, which is used for containing the tire tread, is welded and sealed and fixed with the flanging A of the cylindrical blank of the rim unit, and the cylinder mouth at one end of the annular sleeve, which is far away from the tire tread, is welded and sealed and fixed with the outer side wall of the cylindrical blank of the rim unit, a silencing device is fixed in an annular cavity surrounded by the annular sleeve, the cylindrical blank of the rim unit and the flanging, and a vent pipe of the silencing device penetrates out from an arc slope plate connected with the annular boss and the annular sleeve.
In the step S7, the edge of the flange a is welded and fixed with the tread.
The edge of the flanging A is welded, sealed and fixed with the tread.
In the step S9, the flanges B of the two rim unit cylindrical blanks are sealed and fixed by welding.
At the moment, annular sleeves at the two axial ends of the rim respectively form annular cavities with cylindrical blanks of the rim units at the side where the annular sleeves are positioned; a muffler may be secured within the annular cavity.
The annular sleeve is welded and fixed with the flange A corresponding to the cylinder opening of the end where the tread is positioned, and the edge of the flange A is welded and fixed with the outer side wall of the tread after being bent, so that the cylinder opening of the tread of the annular sleeve can be welded and fixed with the rim cylindrical blank, and the strength between the cylinder opening of the annular sleeve corresponding to the end where the tread is positioned and the flange A is effectively improved; according to the different offset distances, the axial distances between the turned-up edges B and the turned-up edges A of the two cylindrical blanks of the rim units are different, and then the turned-up edges B of the two cylindrical blanks of the rim units are welded and fixed.
Claims (5)
1. The production method of the high-strength light rim is characterized by comprising the following steps of:
s1, preparing a cylindrical blank of a rim unit with a circular section according to the circumferential length and the axial length of the cylindrical blank of the rim;
S2, turning over the edge of a cylinder mouth at one end of the cylindrical blank of the rim unit outwards to form a flanging A;
s3, preparing an annular sleeve blank for matching and matched connection with the cylindrical blank of the rim unit obtained in the step S1;
s4, processing the annular sleeve blank into an outwardly protruding annular boss with one end having a cylinder mouth inner diameter matched with the outer diameter of the rim cylindrical blank and the other end being coaxially arranged through flaring or necking;
S5, necking the bending part of the arc surface of the annular boss and the arc surface of the annular boss to form a concentric tread, and forming a concentric protruding ring between the tread and the bending part of the arc surface of the annular boss to further obtain an annular sleeve;
s6, sleeving and fixing the annular sleeve obtained in the step S5 on the outer side wall of the rim unit cylindrical blank provided with the flanging obtained in the step S2, and enabling a nozzle at one end of the annular sleeve, which is provided with the tread, to be in contact with the flanging A of the rim unit cylindrical blank;
s7, turning the edge of the flanging A of the cylindrical blank of the rim unit obtained in the step S6 to one side of the tread, and enabling the edge of the flanging A to be in contact with and fixed on the tread;
S8, according to the axial length of the rim, the cylindrical blank of the rim unit obtained in the step S7 is turned inwards to form a flanging B away from a cylinder opening at one end of the flanging A;
S9, according to the axial length of the rim, the flanges B of the two rim unit cylindrical blanks, which are obtained in the step S8 and are matched with the axial length of the rim, are subjected to concentric splicing and fixing, so that the rim is obtained, and a tire accommodating groove is formed between the outer side walls of the two rim unit cylindrical blanks and an arc slope plate connected with the annular boss and the annular sleeve.
2. The method for producing a high-strength lightweight rim according to claim 1, characterized in that: in the step S6, the nozzle at one end of the annular sleeve, where the tread is mounted, is welded and fixed with the flange a of the cylindrical blank of the rim unit.
3. The method for producing a high-strength lightweight rim according to claim 1, characterized in that: in the step S6, the cylinder mouth of the annular sleeve far away from one end of the tread is welded and fixed with the outer side wall of the cylindrical blank of the rim unit.
4. The method for producing a high-strength lightweight rim according to claim 1, characterized in that: in the step S7, the edge of the flange a is welded and fixed with the tread.
5. The method for producing a high-strength lightweight rim according to claim 1, characterized in that: in the step S9, the flanges B of the two rim unit cylindrical blanks are sealed and fixed by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410128626.4A CN118023848A (en) | 2024-01-30 | 2024-01-30 | Production method of high-strength light rim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410128626.4A CN118023848A (en) | 2024-01-30 | 2024-01-30 | Production method of high-strength light rim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118023848A true CN118023848A (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410128626.4A Pending CN118023848A (en) | 2024-01-30 | 2024-01-30 | Production method of high-strength light rim |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118023848A (en) |
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2024
- 2024-01-30 CN CN202410128626.4A patent/CN118023848A/en active Pending
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