CN114310194A - Hub manufacturing method - Google Patents
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- CN114310194A CN114310194A CN202210054592.XA CN202210054592A CN114310194A CN 114310194 A CN114310194 A CN 114310194A CN 202210054592 A CN202210054592 A CN 202210054592A CN 114310194 A CN114310194 A CN 114310194A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 73
- 238000003466 welding Methods 0.000 claims abstract description 133
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000005266 casting Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 238000007730 finishing process Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention provides a method for manufacturing a wheel hub, which comprises the steps of welding a connecting piece on the inner wall of a wheel rim, placing the wheel rim with the connecting piece into a mould, and casting a spoke in the wheel rim so as to form an integrated wheel hub. The wheel rim and the wheel spoke can be made of different materials due to the fact that the connecting pieces are adopted for connection, structural strength can be guaranteed, welding points or welding seams formed when the connecting pieces and the connecting pieces are welded are completely covered after the wheel spoke is cast and molded, and the finally obtained wheel hub does not have any exposed connecting pieces, welding points or welding seams, so that the appearance is attractive, the connecting pieces, the welding points or the welding seams cannot be corroded due to exposure in the using process of a user, connection is firmer, structural strength cannot be weakened when the user uses the wheel hub for a long time, and corresponding safety problems are avoided. In addition, the spoke is usually complex in structure, and the spoke is integrally molded by casting in the method, so that the manufacturing is convenient and the production efficiency is high.
Description
Technical Field
The invention belongs to the technical field of electric vehicle component manufacturing, and particularly relates to a hub manufacturing method.
Background
A wheel is made up of a tire and a hub, which is a rotating bearing between the tire and the axle, typically consisting of a rim and spokes.
The traditional wheel hub is usually made of aluminum integrally formed or formed by mutually welding a plurality of formed steel pieces, the former is beautiful and has high manufacturing cost, the edge structural strength is insufficient, the wheel hub is easy to wear if being careless when a tire is replaced, the latter has low manufacturing cost and is not beautiful because of more welding seams, each part needs to be respectively machined and forged, and the manufacturing process is various. Although the prior art has a composite hub which combines the two, the manufacturing method and the final product still have a plurality of problems: firstly, the spoke of the composite hub is usually manufactured by a casting method, but because the spoke has a complex structure such as an axle hole, a mounting hole, a spoke and the like, the procedures such as punching, turning and the like are often required to be carried out for many times after casting, the manufacturing procedures are still multiple, and the production efficiency is low; secondly, because rim and spoke adopt different materials to make, the fusing point of different materials is different, directly welds unable structural strength of guaranteeing, consequently need connect through the connecting piece usually, among the prior art, the off-the-shelf connecting piece of wheel hub and solder joint expose outside, not only very pleasing to the eye, expose the part after long-time outdoor use and still easily produce the corruption, and influence connection structure's intensity, cause the potential safety hazard.
Disclosure of Invention
In order to solve the problems, the invention provides a method for manufacturing a hub, which adopts the following technical scheme:
the invention provides a method for manufacturing a hub, which is characterized by at least comprising the following steps: a welding process of welding the connecting piece on the inner wall of the rim made of the first preset material by laser welding; and a spoke manufacturing procedure, namely placing the wheel rim in a corresponding mould, pouring a second preset material into the mould, and then keeping the temperature and pressure for a preset time to form the wheel hub with the spoke, wherein the spoke covers the connecting piece and forms all welding positions when the connecting piece is welded with the wheel rim, and the welding positions are one or the combination of welding spots and welding seams.
The hub manufacturing method provided by the invention can also have the technical characteristics that the hub manufacturing method further comprises the following rim manufacturing steps before the welding step: a first rim process, namely cutting a metal plate into a metal belt with a preset length and a preset width by using a cutting device, wherein the preset length and the preset width correspond to the rim; in the rim process II, the metal belt is coiled along the length direction by adopting a coiling device to form a ring shape; a third step of welding two ends of the metal belt which is coiled together along the length direction by adopting welding equipment to form a metal ring; a rim process step of rolling the middle part of the metal ring to form a convex part protruding towards the inside of the metal ring along the radial direction of the metal ring; and a fifth step of processing the annular end parts on the two sides of the metal ring to form a curled edge, so that the wheel rim is manufactured.
The hub manufacturing method provided by the invention can also have the technical characteristics that the following cleaning procedures are also included between the welding procedure and the spoke manufacturing procedure: and cleaning and drying the rim welded with the connecting piece.
The hub manufacturing method provided by the invention can also have the technical characteristics that the method further comprises the following steps after the spoke pouring step: a deburring process, namely taking out the hub in the die and removing burrs on the hub; and a coating process, namely cleaning and drying the hub after the burrs are removed, and then coating.
The hub manufacturing method provided by the present invention may further include a technical feature that the first predetermined material is iron, and the second predetermined material is aluminum or resin.
The hub manufacturing method provided by the invention can also have the technical characteristics that the laser welding is linear welding to form a linear welding seam.
The method for manufacturing the wheel hub provided by the invention can also have the technical characteristics that the laser welding is curved welding, and a welding seam in a circular arc waveform or V-shaped waveform is formed.
The hub manufacturing method provided by the present invention may further have a technical feature in that a middle portion of an inner wall of the rim is projected toward a center of the rim, one end of the connecting member has a welding portion for welding to the middle portion of the inner wall of the rim, and the other end has an extending portion extending toward the center of the rim.
The method for manufacturing a wheel hub provided by the invention can also have the technical characteristics that the connecting piece is an L-shaped connecting piece, the cross section of the connecting piece is L-shaped, the L-shaped connecting piece is provided with two mutually vertical side parts which are respectively a welding part and an extending part, and a plurality of welding points or a welding line is formed between the corner of the L-shaped connecting piece and the middle part of the inner wall of the wheel rim.
The hub manufacturing method provided by the invention can also have the technical characteristics that the connecting piece is a straight connecting piece, the welding part and the extending part are respectively two end parts of the straight connecting piece, and a plurality of welding points or two welding lines are respectively formed between two sides of the welding part and the middle part of the inner wall of the rim.
Action and Effect of the invention
According to the hub manufacturing method, the connecting piece is welded on the inner wall of the rim, the rim with the connecting piece is placed in the mold, and the spoke is formed in the rim through casting, so that the integrated hub is formed. The wheel rim and the wheel spoke can be made of different materials due to the fact that the connecting pieces are adopted for connection, structural strength can be guaranteed, welding points or welding seams formed when the connecting pieces and the connecting pieces are welded are completely covered after the wheel spoke is cast and molded, and the finally obtained wheel hub does not have any exposed connecting pieces, welding points or welding seams, so that the appearance is attractive, the connecting pieces, the welding points or the welding seams cannot be corroded due to exposure in the using process of a user, connection is firmer, structural strength cannot be weakened when the user uses the wheel hub for a long time, and corresponding safety problems are avoided. In addition, the spoke usually has structures such as spokes, shaft holes, mounting holes and the like, the structure is complex, a plurality of steps such as punching, turning and the like are carried out in the traditional manufacturing method, and the spoke is integrally molded by casting in the method, so the manufacturing is convenient and the production efficiency is high.
Drawings
FIG. 1 is a flow chart of a method of manufacturing a hub according to one embodiment of the present invention;
FIG. 2 is a schematic structural view of a rim to be cast according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a connection structure of a rim and a spoke according to a first embodiment of the invention;
fig. 4 is a schematic view of a connection structure of a rim and a spoke in the second embodiment of the invention.
Reference numerals:
a rim 20; an inner wall 21; an inner wall middle portion 211; an outer wall 22; a spoke 30; spokes 33; a connecting member 40; a welding portion 41; an extension 42; a connection via 421; a solder joint 50; a mold 60; a cavity 61.
Detailed Description
In order to make the technical means, the creation features, the achievement objects and the effects of the invention easy to understand, the following description is made in detail for the hub manufacturing method of the invention with reference to the embodiments and the accompanying drawings.
< example one >
The embodiment provides a hub manufacturing method, which is used for manufacturing a composite hub for an electric vehicle or a motorcycle.
In the following description, it is to be noted that the terms "upper", "lower", "left", "right", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings.
Fig. 1 is a flow chart of a hub manufacturing method in an embodiment of the present invention.
As shown in fig. 1, the hub manufacturing method of the present embodiment mainly includes three steps, i.e., a rim manufacturing step, a welding step, and a spoke manufacturing step, in which a ring-shaped rim is manufactured, a connecting member is welded to an inner wall of the rim, and a spoke is cast and formed inside the rim by a mold. In addition, the hub manufacturing method of the present embodiment further includes a cleaning process, a finishing process, and a coating process.
The specific steps of each process will be described in detail in the order of production.
In step S1, a rim manufacturing process is performed.
The rim manufacturing process specifically comprises the following steps:
step S1-1, rim step one, cutting the metal plate into a metal strip having a predetermined length and a predetermined width corresponding to the rim using a cutting device.
The cutting equipment is a metal cutting machine in the prior art, the metal plate is made of iron, the preset length is the circumference of the rim, and the preset width is the width of the rim when the rim is flattened.
And step S1-2, in the rim step II, a metal belt is coiled along the length direction by adopting a coiling device to form a ring shape.
The coiling device is a coiling machine in the prior art, the coiling machine coils the metal belt into a coil shape along the length direction of the metal belt, and two short edges of the metal belt are matched.
And step S1-3, a third step of rim production, namely welding the two ends of the metal belt which is coiled together along the length direction by adopting welding equipment to form a metal ring.
The welding equipment is a linear welding machine in the prior art, two end parts (namely two short sides) of the metal belt along the length direction are welded together to form a metal ring, the part of the metal ring, welded together by the two end parts, is a welding part, and the welding part is possibly uneven and slightly protrudes outwards. Therefore, after the welding is completed, the welding portion is also subjected to flattening treatment, thereby obtaining a flattened metal ring.
Step S1-4, a rim step four, rolling the middle part of the metal ring to form a convex part protruding toward the inside of the metal ring in the radial direction of the metal ring.
In this embodiment, the middle of the metal ring is rolled by using a rim spinning machine in the prior art to form the convex portion, that is, a radial concave portion is formed on the outer wall of the rim facing outward, so that the tire can be conveniently mounted.
And step S1-5, a fifth step of rim, namely, processing the annular end parts at the two sides of the metal ring to form curled edges, thereby manufacturing the rim.
In this embodiment, the rim shaper in the prior art is adopted to crimp the annular end portions on both sides of the metal ring, so as to form a bead turned outwards, thereby facilitating the grasping of the tire.
Through the above steps, the iron rim is manufactured.
In step S2, a welding process is performed.
And a plurality of connecting pieces are sequentially welded on the inner wall of the iron rim by adopting laser welding.
In this embodiment, the material of connecting piece also is iron, and the material of connecting piece and rim is unanimous promptly to guarantee the welding effect, adopt the laser welding equipment among the prior art to carry out laser welding.
Fig. 2 is a schematic structural view of a rim to be cast in the embodiment of the present invention.
As shown in fig. 2, in the present embodiment, the number of the connecting members 40 is three, and the connecting members are mounted on the middle portion of the inner wall of the rim 20, that is, on the convex portion formed in the above-mentioned fourth rim step, according to a predetermined arrangement rule, wherein each connecting member 40 corresponds to one spoke of the spoke.
In the present embodiment, three connecting members 40 are welded to predetermined positions on the middle portion of the inner wall of the rim 20, respectively, using a laser welding apparatus in the related art.
Fig. 3 is a schematic view of the connection structure of the rim and the spoke in the embodiment of the invention.
As shown in fig. 2 and 3, the connecting member 40 is an L-shaped connecting member, and the cross section perpendicular to the extending direction thereof is L-shaped, and the connecting member 40 has two mutually perpendicular side portions, which are a welded portion 41 and an extended portion 42, respectively.
Wherein, welding part 41 is the even slice of thickness for the welding is in the inner wall middle part of rim 20, and welding part 41 has the radian with the inner wall middle part assorted of rim 20, thereby can laminate the inner wall middle part of rim 20 when the welding.
The extension 42 is also in the form of a sheet of uniform thickness, and when the connector 40 is attached to the center of the inner wall of the rim 20, the extension 42 extends generally toward the center of the rim 20 for the spokes to wrap around when the spokes are cast, thereby forming a fixed connection. The extending portion 42 is provided with three connecting through holes 421.
As shown in fig. 3, the connecting member 40 is welded to the center portion of the inner wall of the rim 20 by laser spot welding, and a plurality of welding spots 50 (only one of which is shown in the drawing, and the other welding spots are hidden due to the view angle) are formed between the outer side of the welded portion 41 and the center portion of the inner wall of the rim 20 at positions near the corners of the connecting member 40.
In addition, a linear laser welding may be used instead of the spot welding at a position between the outer side of the welding portion 41 and the middle portion of the inner wall of the rim 20, which is close to the corner of the connecting member 40, that is, at the position of the welding spot 50, thereby forming a linear welding seam, or a curved laser welding may be used, thereby forming a welding seam having a circular arc wave or a V-shaped wave shape.
Through the above steps, a rim with a plurality of connectors is obtained.
In step S3, a cleaning process is performed.
The rim with the connecting piece is cleaned and dried, so that dust and the like adhered to the rim in the manufacturing process are removed, the surfaces of the rim and the connecting piece are clean and flat, and a better fixed connection effect can be achieved after the subsequent casting process.
In step S4, a spoke manufacturing process is performed.
The spoke manufacturing process specifically comprises the following steps:
step S4-1, a spoke process I, namely, placing the rim in a corresponding mould in a mould pressing machine, and forming a cavity for casting and forming the spoke between the inner wall of the rim and the mould.
As shown in fig. 2, the rim 20 with the three connecting members 40 is placed on a mold 60 (only a lower mold of the mold is shown in the drawing), a convex portion of a middle portion of the mold 60 extends into the interior of the rim 20, and a cavity 61 for casting and forming spokes is formed between an inner wall of the rim 20 and the mold 60, wherein a middle portion of the cavity 61, i.e., an axle mounting portion corresponding to the middle portion of the spokes, three end portions extending outward from the middle portion of the cavity 61, i.e., three spokes, and the positions of the three connecting members 40 correspond to the end portions of the spokes, respectively.
And step S4-2, a spoke step II, wherein a plurality of screw seats are placed beside the position corresponding to the axle mounting part of the spoke in the die in advance, and the screw seats are arranged around the center circumference of the axle mounting part.
In this embodiment, the number of screw seats is three, and the screw seats are circumferentially disposed around the axle mounting portion, that is, at positions corresponding to the spokes in the mold 60.
And step S4-3, a spoke step III, pouring molten aluminum or resin into the cavity, and keeping the preset temperature and the preset pressure for a preset time to form the hub with the spoke.
As shown in fig. 3, in the present embodiment, the ends of the spokes 33 of the cast spoke 30 cover three connecting elements 40, all the welding points 50 or welding seams, and part of the inner wall middle portion 211 of the rim 20, i.e., the ends of the spokes 33 form a closed type coating for all the connecting elements 40, all the welding points 50 or welding seams, and the hub finished product does not have any exposed connecting elements 40, welding points 50 or welding seams.
During casting, molten aluminum or resin liquid also flows through the three connecting through holes 421 of the connecting member 40 and is finally formed at these positions, so that the ends of the spokes 33 form a complicated covering structure for the connecting member 40, thereby achieving a firm connection.
Meanwhile, as shown in fig. 3, the spokes 33 located at the left side portion of the extension 42 are significantly thicker than the right side portion thereof with respect to the extension 42 of the connecting member 40 and the extending direction thereof, and this arrangement makes the force transmitted from the spokes 33 act more on the left side portion thereof in the horizontal direction in fig. 3, and the connecting portion of the welding portion 41 to the inner wall middle portion 211 of the rim 20 is located substantially at the right side portion, and the welding point 50 or the welding bead is also located at the right side portion, so that the tensile force applied to the welding point 50 or the welding bead can be reduced, and the connecting structure can be more durable.
Through the procedures, the semi-finished product of the hub is obtained.
In step S5, a finishing process is performed.
The finishing process specifically comprises:
and step S5-1, finishing, namely, taking the semi-finished hub product out of the die and removing burrs of the semi-finished hub product.
In this embodiment, adopt the unhairing limit machine among the prior art to get rid of the deckle edge of wheel hub semi-manufactured goods, it has wheel hub to obtain the edge level and smooth.
And step S5-2, a finish machining process II, wherein a turning device is adopted to machine an internal thread hole in the center of each screw base.
In this embodiment, the turning device is also a device in the prior art, and therefore, the description is omitted.
In step S6, a coating process is performed.
And cleaning and drying the hub, and then coating. In this embodiment, the hub is coated by using the coating equipment and the coating process in the prior art, and therefore, the description is omitted.
And finally, sleeving a shaft sleeve in the shaft hole in the middle of the coated hub to obtain a final hub finished product.
< example two >
The present embodiment provides a method for manufacturing a wheel hub, which is different from the first embodiment in that the connecting member is a straight connecting member.
Fig. 4 is a schematic view of the connection structure of the rim and the spoke in the embodiment of the invention.
As shown in fig. 4, in the present embodiment, the connecting member 40 is a line-shaped connecting member, which is long and uniform in thickness, and the welding portion 41 is one end portion of the connecting member 40. Weld 41 also has a curvature that matches the inner wall center 211 of rim 20, and extension 42 is shaped as in the first embodiment.
In the welding, the welding portion 41 is welded to the inner wall middle portion 211 of the rim 20 by performing the above-described laser spot welding to form a plurality of welding spots, or performing the above-described linear welding or curved welding to form two welding lines, on both sides of the connecting portion between the welding portion 41 and the inner wall middle portion 211 of the rim 20.
Meanwhile, as shown in fig. 4, the thickness of the left portion of the spoke 33 located on the left side of the extension 42 is substantially the same as the thickness of the right portion thereof, with the extension 42 of the connecting member 40 and the extending direction thereof being taken as boundaries, such that the force transmitted from the spoke 33 is uniformly applied to the welding spots or the welding seams on both sides of the welding portion 41.
Examples effects and effects
According to the hub manufacturing method provided by the embodiment, the connecting piece is welded on the inner wall of the rim, the rim with the connecting piece is placed in the mold, and the spoke is formed in the rim by casting, so that the integrated hub is formed. The wheel rim and the wheel spoke can be made of different materials due to the fact that the connecting pieces are adopted for connection, structural strength can be guaranteed, welding points or welding seams formed when the connecting pieces and the connecting pieces are welded are completely covered after the wheel spoke is cast and molded, and the finally obtained wheel hub does not have any exposed connecting pieces, welding points or welding seams, so that the appearance is attractive, the connecting pieces, the welding points or the welding seams cannot be corroded due to exposure in the using process of a user, connection is firmer, structural strength cannot be weakened when the user uses the wheel hub for a long time, and corresponding safety problems are avoided. In addition, the spoke usually has structures such as spokes, shaft holes, mounting holes and the like, the structure is complex, a plurality of steps such as punching, turning and the like are carried out in the traditional manufacturing method, and the spoke is integrally molded by casting in the method, so the manufacturing is convenient and the production efficiency is high.
Specifically, before casting, the rim welded with the connecting piece is placed in the mold, a cavity for casting is formed between the inner wall of the rim and the mold, molten aluminum or resin liquid is then cast into the cavity, and the spoke is formed in heat preservation and pressure maintaining preset time, so that the formed spoke can completely cover the connecting piece, a welding point or a welding seam, and has a large contact area with the middle part of the inner wall of the rim, and the structural strength and the appearance attractiveness of a product are guaranteed.
In the first embodiment, the connecting member is an L-shaped connecting member, the contact area between the welding portion 41 of the L-shaped connecting member and the inner wall middle portion 211 of the rim 20 is larger, and more pressure from the rim 20 can be borne in an abutting manner, so that the number of welding points can be reduced while the strength of the connecting structure is ensured, the production time and the production cost are saved, and the production efficiency is improved.
In the second embodiment, the connecting piece is a straight connecting piece, has a symmetrical structure, is simple in structure and easy to produce, the two sides of the connecting piece can adopt the same welding mode during welding, and the end part of the finished spoke is uniformly stressed, so that the connecting structure is more convenient to produce and lower in cost while the strength of the connecting structure is ensured.
The above-described embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above-described embodiments.
In the above embodiment, after the spoke is cast, the bushing is installed in the axial hole in the center of the spoke, but in another aspect of the present invention, the bushing may be placed in advance in a predetermined axial hole portion before casting, so that the bushing is directly integrated with the spoke during casting.
In the above embodiment, for convenience of description, the steps are performed in the above order to complete the manufacture of one wheel hub, and in practical applications, a plurality of wheel rims may be prepared in advance, and the prepared wheel rims are stored and temporarily stored, and then are sequentially taken out of the warehouse to perform the welding step and the wheel spoke manufacturing step, or the wheel rims welded with the connecting members are stored and temporarily stored, and then are sequentially taken out of the warehouse to perform the wheel spoke manufacturing step.
Claims (10)
1. A method for manufacturing a hub, comprising at least the steps of:
a welding process of welding the connecting piece on the inner wall of the rim made of the first preset material by laser welding;
and a spoke manufacturing procedure, namely placing the wheel rim in a corresponding mould, pouring a second preset material into the mould, and then keeping the temperature and pressure for a preset time to form the wheel hub with the spoke, wherein the spoke covers the connecting piece and all welding positions formed when the connecting piece is welded with the wheel rim, and the welding positions are one or the combination of welding spots and welding seams.
2. The method of manufacturing a wheel hub according to claim 1, further comprising the following rim manufacturing process before the welding process:
a first rim process, namely cutting a metal plate into a metal belt with a preset length and a preset width by using a cutting device, wherein the preset length and the preset width correspond to the rim;
in the rim process II, the metal belt is coiled along the length direction by adopting a coiling device to form a ring shape;
a third step of welding two ends of the metal belt which is coiled together along the length direction by adopting welding equipment to form a metal ring;
a rim process step of rolling the middle part of the metal ring to form a convex part protruding towards the inside of the metal ring along the radial direction of the metal ring;
and a fifth step of processing the annular end parts on the two sides of the metal ring to form a curled edge, so that the wheel rim is manufactured.
3. The method of manufacturing a wheel hub according to claim 1, further comprising a cleaning process between the welding process and the spoke manufacturing process, the cleaning process including:
and a cleaning process, namely cleaning and drying the rim welded with the connecting piece.
4. The hub manufacturing method according to claim 1, further comprising, after the spoke casting process, the following process:
a finishing process, namely taking out the hub in the die and removing burrs on the hub;
and a coating process, namely cleaning and drying the hub after the burrs are removed, and then coating.
5. A method of manufacturing a wheel hub according to claim 2, wherein:
wherein the first predetermined material is iron and the second predetermined material is aluminum or resin.
6. A method of manufacturing a wheel hub according to claim 1, wherein:
wherein the laser welding is linear welding, forming the linear welding seam.
7. A method of manufacturing a wheel hub according to claim 1, wherein:
the laser welding is curve welding, and the welding seam in a circular arc shape wave shape or a V shape wave shape is formed.
8. A method of manufacturing a wheel hub according to claim 1, wherein:
wherein the middle part of the inner wall of the rim is protruded towards the center of the rim,
one end of the connecting piece is provided with a welding part for welding in the middle of the inner wall of the rim, and the other end of the connecting piece is provided with an extending part extending towards the center of the rim.
9. The hub manufacturing method according to claim 8, wherein:
wherein the connecting piece is an L-shaped connecting piece, the cross section of the connecting piece is L-shaped,
the L-shaped connecting piece is provided with two mutually vertical side parts which are respectively the welding part and the extending part,
a plurality of welding spots or a welding seam are formed between the corners of the L-shaped connecting piece and the middle part of the inner wall of the wheel rim.
10. The hub manufacturing method according to claim 8, wherein:
wherein the connecting piece is a straight connecting piece,
the welding part and the extending part are respectively two ends of the straight connecting piece,
the welding spots or the two welding lines are respectively formed between two sides of the welding part and the middle part of the inner wall of the rim.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115070351A (en) * | 2022-06-13 | 2022-09-20 | 浙江恒质新材料有限公司 | Hub manufacturing system |
CN115091123A (en) * | 2022-06-13 | 2022-09-23 | 浙江恒质新材料有限公司 | Hub manufacturing method |
CN115246003A (en) * | 2022-07-06 | 2022-10-28 | 杭州智南针信息科技有限公司 | Spoke feeding device of disc brake hub |
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CN214727870U (en) * | 2020-08-21 | 2021-11-16 | 台州恒质新材料有限公司 | Hub of motorcycle or electric vehicle |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115070351A (en) * | 2022-06-13 | 2022-09-20 | 浙江恒质新材料有限公司 | Hub manufacturing system |
CN115091123A (en) * | 2022-06-13 | 2022-09-23 | 浙江恒质新材料有限公司 | Hub manufacturing method |
CN115070351B (en) * | 2022-06-13 | 2024-02-23 | 浙江恒质新材料有限公司 | Hub manufacturing system |
CN115091123B (en) * | 2022-06-13 | 2024-04-19 | 浙江恒质新材料有限公司 | Hub manufacturing method |
CN115246003A (en) * | 2022-07-06 | 2022-10-28 | 杭州智南针信息科技有限公司 | Spoke feeding device of disc brake hub |
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