CN218396897U - Two-piece joined wheel manufacturing system - Google Patents
Two-piece joined wheel manufacturing system Download PDFInfo
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- CN218396897U CN218396897U CN202222163692.4U CN202222163692U CN218396897U CN 218396897 U CN218396897 U CN 218396897U CN 202222163692 U CN202222163692 U CN 202222163692U CN 218396897 U CN218396897 U CN 218396897U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The utility model discloses a manufacturing system of two joint-type wheels includes: a spoke molding device for molding a spoke of a wheel for a vehicle; a rim molding device for molding a rim of a vehicle wheel; a temporary assembling device for temporarily assembling the spoke and the rim; and a joining device for joining the joined portions of the spokes and the rim by friction stir welding. Furthermore, the present invention provides a method for manufacturing a two-piece bonded wheel, comprising: a spoke molding step of molding a spoke of a wheel for a vehicle; a rim molding step of molding a rim of a vehicle wheel; a temporary assembly step of temporarily assembling the spoke and the rim; and a joining step of performing friction stir welding on the joined portion of the spoke and the joined portion of the rim to join the spoke and the rim.
Description
Technical Field
The present invention relates to a system for manufacturing a two-piece bonded wheel, and more particularly, to a system for manufacturing a two-piece bonded wheel, which can stably bond a wheel disc and a rim and can automate the entire process.
Background
The wheel for a vehicle is to be manufactured by various methods according to its shape. Also, wheels for vehicles have recently exhibited a quantified tendency, and a tendency to increase durability.
The structure of a vehicle wheel includes a wheel disc and a rim, and a method of integrally molding the wheel disc and the rim in one piece has been widely used. Also, a two-piece wheel in which the engagement is achieved after separately manufacturing the spoke and the rim has been recently developed and used.
The two-piece wheel as described above has various advantages as compared with the conventional one-piece wheel, but has a problem in that many processes are required to be performed by manual work because the number of manufacturing processes is increased as compared with the one-piece wheel and automation is difficult. Therefore, the yield of the two-piece wheel is only inferior to that of the conventional one-piece wheel, and it is difficult to ensure competitiveness.
Furthermore, there is a problem that it is difficult to provide excellent joining strength between the rim and the spoke.
Therefore, a method for solving the problems as described above is required.
SUMMERY OF THE UTILITY MODEL
The utility model is used for solve as above the problem that exists among the prior art, the utility model aims to a can make whole process realize automaticly when shortening the manufacturing procedure of two joint formula wheels.
The object of the present invention is not limited to the above-mentioned object, and other objects not mentioned can be clearly understood by those skilled in the art to which the present invention pertains from the following description.
The present invention for achieving the above object is a system for manufacturing a two-piece joined vehicle wheel, comprising: a spoke molding device for molding a spoke of a wheel for a vehicle; a rim molding device for molding a rim of a vehicle wheel; a temporary assembling device for temporarily assembling the spoke and the rim; and a joining device for joining the joined portions of the spokes and the rim by friction stir welding.
Also, the temporary assembling apparatus may include: a spoke transfer line for transferring the spokes; a rim transfer line for transferring the rim; a temporary assembly table for performing a temporary assembly process of the spoke and the rim; a first transfer unit provided on the spoke transfer line, for transferring the spoke to a temporary assembly table and placing the spoke on a rim positioned on the temporary assembly table; a second transfer unit provided on the rim transfer line, for transferring the rim to the temporary assembly table; and a heating unit which is provided on the rim transfer line and heats and expands the rim.
Further, a plurality of depressed grooves which are hollowed when coupled to the spoke and partition walls which partition the plurality of depressed grooves may be formed at the coupling portion of the rim, and the temporary assembling apparatus may further include an application module which applies an adhesive resin to the partition walls.
Furthermore, the present invention may further include at least one of the following devices: an ultrasonic inspection device for performing ultrasonic inspection on a joint portion of the spoke and a joint portion of the rim that are joined to each other; a balance checking device for checking the balance of the wheel; and a leak inspection device for inspecting whether or not a fluid leaks from the joint portion of the spokes and the joint portion of the rim that are joined to each other.
Further, a method for manufacturing a two-piece joined vehicle wheel according to the present invention for achieving the above object includes: a spoke molding step of molding a spoke of a wheel for a vehicle; a rim molding step of molding a rim of a vehicle wheel; a temporary assembly step of temporarily assembling the spoke and the rim; and a joining step of performing friction stir welding on the joined portion of the spoke and the joined portion of the rim to join the spoke and the rim.
Also, the joining step may include: a first welding step of performing friction stir welding from an outer peripheral surface side of the rim toward the spoke direction; and a second welding step of performing friction stir welding from the wheel spoke direction toward the inner circumferential surface of the rim.
In this case, in the temporarily assembling step, the wheel disc and the rim may be temporarily assembled by shrink fitting.
Further, the temporarily assembling step may include: a heating step of heating the rim to expand the rim; a placing step of placing the spoke on the rim; and a cooling step of cooling the rim to compress the joint portion of the spoke along with contraction of the joint portion of the rim, thereby temporarily assembling the rim and the spoke with each other.
In addition, a plurality of concave grooves which are hollow when coupled to the spoke and a partition wall which partitions the plurality of concave grooves may be formed in the coupling portion of the rim, and an application step of applying a bonding resin to the partition wall may be further included before the placing step.
Before the placing step, a rotation angle detecting step of detecting a rotation angle of the spoke and the rim may be further included.
Further, after the joining step, an inspection step of performing an inspection of the wheel in which the spoke and the rim are joined may be further included.
Also, the checking step may include at least one of the following steps: an ultrasonic inspection step of performing ultrasonic inspection on a joint portion of the spoke and a joint portion of the rim that are joined to each other; a balance checking step of checking the balance of the wheel; and a leak inspection step of inspecting whether or not a fluid leaks from the joint portion of the spoke and the joint portion of the rim that are joined to each other.
The method and system for manufacturing a two-piece joined vehicle wheel according to the present invention for achieving the above object have the following effects.
First, the yield can be increased by minimizing the manufacturing process of the two-piece bonded wheel.
Second, the entire process for manufacturing the two-piece bonded wheel, which has been conventionally performed manually, can be automated.
Third, the joint stability and reliability between the rim and the spoke can be greatly improved by joining by temporary assembly and friction stir welding.
The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by the description in the claims of the present invention by those skilled in the art.
Drawings
Fig. 1 is a view showing a configuration in which a spoke is formed in a method of manufacturing a two-piece joined vehicle wheel according to an embodiment of the present invention.
Fig. 2 is a view showing a form of molding a rim in a method for manufacturing a two-piece bonded wheel according to an embodiment of the present invention.
Fig. 3 is a view showing an overall form of a temporary assembling device in a method for manufacturing a two-piece joined vehicle wheel according to an embodiment of the present invention.
Fig. 4 is a view showing a state in which a bonding resin is applied to a partition wall of a rim by an application module in a method for manufacturing a two-piece bonded wheel according to an embodiment of the present invention.
Fig. 5 and 6 are views showing a state in which the spokes are placed on the rim by the first transfer unit in the method for manufacturing the two-piece joined wheel according to the embodiment of the present invention.
Fig. 7 is a diagram showing a form of a joining device in a method for manufacturing a two-piece joined wheel according to an embodiment of the present invention.
Fig. 8 is a view showing a form in which friction stir welding is performed on a wheel in a method of manufacturing a two-piece joined wheel according to an embodiment of the present invention.
Fig. 9 is a view showing a mode of inspecting a bonding state of a wheel by an ultrasonic inspection apparatus in a method of manufacturing a two-piece bonded wheel according to an embodiment of the present invention.
Fig. 10 is a view showing a form of a wheel manufactured by a method for manufacturing a two-piece bonded wheel according to an embodiment of the present invention.
Detailed Description
Hereinafter, preferred embodiments of the present invention that can specifically achieve the objects of the present invention will be described with reference to the drawings. In describing the present embodiment, the same structures are given the same names and the same reference numerals, and additional description thereof will be omitted.
The utility model discloses a manufacturing method of two joint-type wheels roughly includes: a spoke molding step of molding a spoke of a wheel for a vehicle; a rim molding step of molding a rim of a vehicle wheel; a temporary assembly step of temporarily assembling the spoke and the rim; and a joining step of performing friction stir welding on the joining portion of the spoke and the joining portion of the rim to join them.
Further, the joining step may be followed by an inspection step of inspecting the wheel to which the spoke and the rim are joined.
Hereinafter, details of the above respective steps and respective manufacturing apparatuses for performing the processes as described above will be described.
Fig. 1 is a view showing a form in which a spoke 10 is molded in a method for manufacturing a two-piece joined vehicle wheel according to an embodiment of the present invention, and fig. 2 is a view showing a form in which a rim 20 is molded in a method for manufacturing a two-piece joined vehicle wheel according to an embodiment of the present invention.
As shown in fig. 1 and 2, a spoke molding step of molding a spoke 10 of a vehicle wheel and a rim molding step of molding a rim 20 of the vehicle wheel are first performed. It is needless to say that these steps may be performed independently or simultaneously.
Also, the steps described above may be performed by a spoke forming apparatus and a rim forming apparatus.
More specifically, in the spoke molding step described above, the first molded product shown in the upper half of fig. 1 can be obtained by melting and casting of the raw material, after which the unnecessary gate 11 portion will be removed.
Also, the configuration of wheel disc 10 engageable with rim 20 as shown in the lower half of fig. 1 may be formed by performing a heat treatment on wheel disc 10 as described above and performing a first machining.
The rim molding step described above is also the same as the spoke molding step described above, and the first molded product shown in the upper half of fig. 2 can be obtained by melting and casting of the raw material, after which the unnecessary gate 21 portion will be removed.
Thereafter, to form the overall shape and curvature of the rim, a flow-spinning step is performed, after which the form of rim 20 engageable with wheel disc 10, as shown in the lower half of fig. 2, may be formed by performing a heat treatment on rim 20 and performing a first machining.
The wheel disc 10 and the rim 20 may be made of a metal material such as aluminum or magnesium, or carbon fiber.
Next, a temporary assembling step of joining the disc 10 and the rim 20 is performed. This step can be performed by a temporary assembly device, the overall form of which is shown in fig. 3.
As shown in fig. 3, the temporary assembling apparatus of the present invention includes a spoke transfer line 50, a rim transfer line 60, a temporary assembling table, a first transfer unit 100, a second transfer unit 200, and a heating unit 220.
Also, in the present embodiment, the turnover unit 150, the first sensing module 120, the rotation module 250, and the temporary assembly auxiliary unit 300 composed of the second sensing module 310 and the coating module 320 are further included.
The first transfer line 50 is a component for transferring and supplying the spokes 10 molded in the previous step. In this case, in the present embodiment, since the spokes 10 are supplied so that the outer surfaces thereof face downward, the reversing unit 150 reverses the spokes 10 after gripping them.
The inverting unit 150 transfers the inverted spoke 10 to the downstream of the first transfer line 50, and then the first transfer unit 100 fixes and lifts the spoke 10.
The first transfer unit 100 includes: a first transfer frame 110 formed to be vertically and horizontally movable so as to transfer the wheel disc 10 to a temporary assembly table; and a rotatable first fixing member 105 provided to the first transfer frame 110 and coupled to a coupling hole formed at a central portion of the wheel disc 10.
That is, the first transfer frame 110 may lift the spoke 10 from the first transfer line 50 and transfer the spoke to a predetermined position, and the first fixing member 105 may rotate the spoke 10 as being inserted into the coupling hole of the spoke 10.
A first detection module 120 is provided at one side of the first transfer line 50, and the first detection module 120 detects the rotation angle of the spoke 10 by sensing the shape of the joint of the spoke 10. This is to allow the spokes 10 to be engaged at a precise position by making the relative rotation angles with respect to each other uniform during the subsequent joining of the spokes 10 to the rim 20.
On the other hand, in the process of executing the above-described steps, the step of transferring the rim 20 to the temporary assembling station as shown in fig. 6 and 7 is executed together. That is, while any of spokes 10 is being transferred, a preparation step necessary for temporarily assembling rim 20 to be joined thereto is also performed.
The second transfer line 60 is a component for transferring and supplying the rim 20 molded in the previous step.
In this case, a heating unit 220 for heating the rim 20 is provided on the second transfer line 60, and particularly, the heating unit 220 includes: a first heating module 220a for heating the inside of the rim 20; and a second heating module 220b for heating the outer side of the rim 20. Therefore, the outer side and the inner side of the rim 20 can be heated at the same time.
The first and second heater modules 220a and 220b heat the rim 20 at a low frequency, and the rim 20 expands in diameter by the low frequency expansion.
Thereafter, the second transfer unit 200 lifts the rim 20 heated as described above and transfers it to the rotation module 250 located at the temporary assembling station. In this embodiment, the temporary assembling station is located downstream of the second transfer line 60, and the second transfer unit 200 includes: a second transfer frame 202 formed to be vertically movable and horizontally movable; and a second fixing member 204 for holding the periphery of the rim 20.
In this case, in the present embodiment, the second transfer unit 200 further includes an auxiliary member 206, and the auxiliary member 206 performs an action of pushing the engaged wheels on the rotation module 250 of the temporary assembly table toward the other transfer line 70 in the process of transferring the rim 20 as described above. That is, the second transfer unit 200 may transfer the rim 20 for bonding and may transfer the temporarily assembled wheel to another process.
Then, the rotation angle required to perform engagement with wheel disc 10 is adjusted by rotating wheel rim 20 placed on rotation module 250. In order to perform this step, the temporary assembly support unit 300 is moved to the temporary assembly table side, and the second detection module 310 provided in the temporary assembly support unit 300 senses the shape of the joint portion of the rim 20.
On the other hand, the wheel to be manufactured in the present embodiment is a hollow sound-absorbing wheel, and road noise and the like are reduced by a hollow portion formed between wheel disc 10 and rim 20. Therefore, as shown in fig. 4, in the present embodiment, a plurality of concave grooves 25 and partition walls 24 are formed around the rim 20, the plurality of concave grooves 25 are hollow when being coupled to the wheel disc 10, and the partition walls 24 divide the plurality of concave grooves 25. In particular, the partition walls 24 described above are formed in a total of 4, and a valve for injecting air into a tire mounted later is mounted on one of them.
Therefore, it is necessary to precisely align the relative rotation angle between the disc 10 and the rim 20, and the first and second detecting modules 120 and 310 may sense the shape of the joint of the disc 10 and the rim 20, respectively, to precisely adjust the rotation angle with reference to the partition wall 24 for mounting the valve.
After the adjustment is completed, as shown in fig. 4, a step of applying an adhesive resin to the partition walls 24 of the rim 20 described above using the application module 320 will be performed. The above-described adhesive resin functions to prevent air leakage by sealing between wheel disc 10 and partition wall 24 while fixing rim 20 and wheel disc 10 to each other.
After adjustment of wheel disc 10 and wheel rim 20 is completed in the manner described above, the engagement step will be performed. As shown in fig. 5 and 6, the first transfer unit 100 fixing the disc 10 moves to the temporary assembly table side, and the disc 10 is positioned above the rim 20.
Thereafter, the first transfer unit 100 is lowered to place the joint portion 12 of the disc 10 on the joint portion 22 of the rim 20, and the disc 10 and the rim 20 are temporarily fixed by the adhesive resin.
In the state described above, the rim 20 is cooled to compress the joint portion of the rim 20 against the joint portion of the spoke 10 in accordance with contraction, thereby temporarily assembling the rim 20 and the spoke 10.
In this case, in the present embodiment, the rim 20 is naturally cooled, and it is needless to say that the rim 20 may be cooled by a separate cooling unit.
As described above, the present invention can realize the overall automation by the temporary assembly of the rim 20 and the wheel disc 10, and can minimize the manufacturing process of the two-piece joined wheel 1 while increasing the yield.
In addition, in the present invention, rim 20 and wheel disc 10 are temporarily assembled by using the shrink fitting method, and it goes without saying that various methods such as the forced fastening method may be adopted in addition to the above-described method.
In the above, the shrink-fitting step is explained, and the wheel temporarily assembled by shrink-fitting can be joined by the subsequent joining step.
Fig. 7 is a diagram showing a form of a joining device in a method for manufacturing a two-piece joined wheel according to an embodiment of the present invention. As shown in fig. 7, the joint device of the present embodiment includes a multi-joint unit 400, a wheel fixing unit 500, and a welding unit 600.
The multi-joint unit 400 includes: an activation unit 420 configured by a plurality of joints; and a grip portion 410 for gripping the wheel 1, wherein the articulated unit 400 performs an operation of transferring the wheel 1, which has completed the shrink-fitting process, to the wheel fixing unit 500 side.
The wheel fixing unit 500 includes a first fixing portion 510a and a second fixing portion 510b that fix both ends of the wheel 1. The first fixing portion 510a and the second fixing portion 510b may be formed to be able to rotate the wheel 1 fixed therebetween.
Therefore, as shown in fig. 8, the welding portion 610 of the welding unit 600 moves toward the wheel 1 and contacts with the wheel 1, and then the first fixing portion 510a and the second fixing portion 510b rotate the wheel 1, so that the welding portion 610 performs friction stir welding along the joint portion.
More specifically, the above-mentioned joining step may include: a first welding step of performing friction stir welding from the outer peripheral surface side of the rim 20 toward the spoke 10; and a second welding step of performing friction stir welding from spoke 10 toward the inner circumferential surface of rim 20.
That is, the disc 10 and the rim 20 can be joined by performing friction stir welding on the outer side and the inner side of the wheel 1, respectively.
As described above, the spoke 10 and the rim 20 are joined and integrated by the joining step, and then, a second working process of shaping the shape of the integrated wheel 1 can be performed.
The wheel 1 will be manufactured through the respective steps as described above, after which an inspection step of inspecting the wheel 1 as described above may also be performed. Also, the inspection step may include a plurality of inspection steps for inspecting the machining state and quality of the wheel 1.
Specifically, in the present embodiment, the checking step includes: an ultrasonic inspection step of performing ultrasonic inspection on the joined portion of the spoke 10 and the joined portion of the rim 20 joined to each other; a balance checking step of checking the balance of the wheel 1; and a leak inspection step of inspecting whether or not a fluid leaks from the joint portion of the spoke 10 and the joint portion of the rim 20 joined to each other. In the present embodiment, all the above inspection steps will be performed, but selection among these inspection steps may be made as appropriate.
Wherein the balance check step and the leakage check step are performed by a balance check device and a leakage check device, respectively.
The balance checking device checks whether the weight is uniformly distributed based on the center point of the wheel 1, and the wheel 1 with the inspection defect is subjected to a post-processing step to adjust the balance. The leak inspection device determines whether or not the fluid leaks by a helium leak detection method or the like, and screens the wheel 1 for good or bad conditions.
Further, fig. 9 shows an ultrasonic inspection apparatus for performing the ultrasonic inspection step, the ultrasonic inspection apparatus including: a rotation unit 710 for fixing the wheel 1 and rotating the wheel 1; and an ultrasonic release unit 720 for releasing an ultrasonic pulse to the joint portion of the wheel 1.
Whether the joint is good or poor can be determined by determining whether or not a discontinuous portion or the like is present between the joint portions of the rim and the spoke using such an ultrasonic inspection apparatus.
The wheel 1 subjected to the above respective inspection steps can be provided as a finished product as shown in fig. 10 after being coated.
In the above, it is understood that the preferred embodiments of the present invention can be embodied in other specific forms without departing from the spirit or scope of the present invention, which will be apparent to those skilled in the art. Therefore, the above embodiments should be understood as illustrative rather than restrictive, and the invention may be modified within the scope and equivalents of the appended claims without being limited to the foregoing description.
Claims (4)
1. A system for manufacturing a two-piece bonded wheel, comprising:
a spoke molding device for molding a spoke of a wheel for a vehicle;
a rim molding device for molding a rim of a vehicle wheel;
a temporary assembly device for temporarily assembling the spoke and the rim in a hot-shrink manner; and
and a joining device for joining the joined portions of the spokes and the rim by friction stir welding.
2. The system for manufacturing a two-piece joined wheel according to claim 1, wherein said temporary assembling means comprises:
a spoke transfer line for transferring the spokes;
a rim transfer line for transferring the rim;
a temporary assembly table for performing a temporary assembly process of the spoke and the rim;
a first transfer unit provided on the spoke transfer line, for transferring the spoke to a temporary assembly table and placing the spoke on a rim positioned on the temporary assembly table;
a second transfer unit provided on the rim transfer line, for transferring the rim to the temporary assembly table; and
and a heating unit which is provided on the rim transfer line and heats and expands the rim.
3. The system for manufacturing a two-piece bonded wheel according to claim 2,
a plurality of recessed grooves which are hollow when the rim is coupled to the spoke, and partition walls which partition the plurality of recessed grooves,
the temporary assembly apparatus further includes a coating module for coating the partition wall with a bonding resin.
4. The system for manufacturing a two-piece bonded wheel according to claim 1, further comprising at least one of:
an ultrasonic inspection device for performing ultrasonic inspection on a joint portion of the spoke and a joint portion of the rim that are joined to each other;
a balance checking device for checking the balance of the wheel; and
and a leakage inspection device for inspecting whether or not a fluid leaks from the joint portion of the spokes and the joint portion of the rim that are joined to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222163692.4U CN218396897U (en) | 2022-08-16 | 2022-08-16 | Two-piece joined wheel manufacturing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222163692.4U CN218396897U (en) | 2022-08-16 | 2022-08-16 | Two-piece joined wheel manufacturing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218396897U true CN218396897U (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222163692.4U Active CN218396897U (en) | 2022-08-16 | 2022-08-16 | Two-piece joined wheel manufacturing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218396897U (en) |
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2022
- 2022-08-16 CN CN202222163692.4U patent/CN218396897U/en active Active
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