Aluminum alloy wheel and manufacturing method thereof

Abstract

The present invention discloses an alloy aluminum wheel, which relates to the technical field of guide wheels, and includes a wheel body formed by die casting, wherein a mounting hole is provided in the center of the wheel body, and mounting rings are extended from the outer edges of both ends of the mounting hole along the axial direction of the wheel body, and the periphery of the wheel body forms a functional part; the alloy aluminum wheel also includes a heat-resistant ring which is inserted into the mounting ring and coaxial with the mounting ring, and the heat-resistant ring and the wheel body are die-cast as a whole. The present invention mainly solves the problem that a rotating shaft or bearing passing through the mounting ring will generate high temperature when rotating at high speed, which easily causes the mounting ring and mounting hole of the alloy aluminum wheel to deform; the rotating shaft or bearing is inserted into the heat-resistant ring, and the heat-resistant ring contacts the rotating shaft or bearing, thereby avoiding direct contact between the mounting ring on the wheel body and the rotating shaft or bearing, and the mounting ring and the mounting hole are not easily heated, so that the alloy aluminum wheel can be used with a high-temperature rotating shaft or bearing and is not easily deformed.

Description

Technical Field

[0001] The invention relates to the technical field of guide wheels, and in particular to an alloy aluminum wheel and a manufacturing method thereof. Background Art

[0002] Alloy aluminum wheels are widely used in industrial production, and have evolved into various forms such as guide wheels, take-up wheels, wire storage wheels and meter wheels to adapt to applications such as annealing machines, wire drawing machines, optical cable equipment and cable equipment.

[0003] The commonly used alloy aluminum wheel includes a wheel body. A mounting hole for installing a rotating shaft or a bearing is opened in the middle of the wheel body. The circumference of the mounting hole extends axially toward the wheel body to form a mounting ring to adapt to bearings with a larger axial length or multiple bearings stacked in use. The outer circumferential surface of the wheel body is the functional part. The use of functional parts with different structures can derive various forms such as guide wheels, take-up wheels, wire storage wheels and meter wheels.

[0004] The alloy aluminum wheel is integrally die-casted from an aluminum alloy material to ensure the mechanical strength of the alloy aluminum wheel. In actual applications, it is found that the shaft or bearing passing through the mounting ring will generate high temperature when rotating at high speed, and the aluminum alloy material is generally difficult to withstand high temperature. After long-term use, the mounting ring and mounting hole of the alloy aluminum wheel are easily deformed, affecting the strength and dynamic balance performance of the alloy aluminum wheel. Summary of the invention

[0005] One of the purposes of the present invention is to provide an alloy aluminum wheel that can be used with a high-temperature rotating shaft or bearing and is not easily deformed.

[0006] Another object of the present invention is to provide a method for manufacturing an alloy aluminum wheel. The alloy aluminum wheel manufactured by the method can be used in conjunction with a high-temperature rotating shaft or bearing and is not easily deformed.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an alloy aluminum wheel, comprising a wheel body formed by die-casting, a mounting hole is opened in the center of the wheel body, mounting rings are extended from the outer edges of both ends of the mounting hole along the axial direction of the wheel body, and the periphery of the wheel body forms a functional part; the alloy aluminum wheel also includes a heat-resistant ring inserted in the mounting ring and coaxial with the mounting ring, and the heat-resistant ring and the wheel body are die-cast as a whole.

[0008] In the above technical solution, the outer ring of the heat-resistant ring forms a locking groove, the inner ring of the installation ring forms a locking rib matching the locking groove, and the locking rib of the installation ring is locked into the locking groove of the heat-resistant ring.

[0009] In the above technical solution, a plurality of weight-reducing holes are provided on the wheel body with the mounting hole as the symmetric center.

[0010] In the above technical solution, the functional part is a wire storage part.

[0011] In the above technical solution, the functional part is the extraction part.

[0012] In the above technical solution, the functional part is a wire part.

[0013] A method for manufacturing an alloy aluminum wheel, used for making the above-mentioned alloy aluminum wheel, which uses a die-casting mold, the die-casting mold comprising a front mold core, a rear mold core and two core pulls; the mold cavity of the front mold core is provided with a first central cylinder for forming a mounting hole, a first groove for forming a mounting ring, a first die-casting annular surface for forming a wheel body and a first functional cavity for forming a functional part in sequence from the inside to the outside; the mold cavity of the rear mold core is provided with a second central cylinder for forming a mounting hole, a second groove for forming a mounting ring, a second die-casting annular surface for forming a wheel body and a second functional cavity for forming a functional part in sequence from the inside to the outside; each core pull is provided with a die-casting half ring on the inner side, and the two core pulls are connected to each other. The front mold core and the rear mold core are opposite to each other and can be inserted into the mold cavity from between the front mold core and the rear mold core; after the front mold core, the rear mold core and the core pulling are combined, the first central cylinder and the second central cylinder are coaxial, and there is no gap between the first central cylinder and the second central cylinder, the first groove and the second groove are coaxial, the first die-casting ring surface and the second die-casting ring surface are coaxial, and there is a gap between the first die-casting ring surface and the second die-casting ring surface and they are parallel to each other, the first functional cavity and the second functional cavity are opposite to each other, and the two die-casting half rings on the core pulling are combined with each other to form a die-casting ring, and the die-casting ring is located between the first functional cavity and the second functional cavity;

[0014] The alloy aluminum wheel manufacturing method comprises the following steps:

[0015] S1, putting a heat-resistant ring on the first central cylinder of the front mold core or the second central cylinder of the rear mold core;

[0016] S2, combining the front mold core, the rear mold core and two core pulling pieces in the die casting mold;

[0017] S3, pressurizing the molten alloy material and injecting it into the cavity of the die-casting mold;

[0018] S4, after the alloy material is cooled, the front mold core, the rear mold core and the two core pulling pieces in the die-casting mold are opened, and the mold is demolded to obtain an alloy aluminum wheel blank;

[0019] S5, processing the alloy aluminum wheel blank to obtain a finished alloy aluminum wheel.

[0020] In the above technical solution, step S5 specifically includes:

[0021] S5.1, Rough machining: remove the die-casting nozzle, runner and excess scraps connected to the alloy aluminum wheel blank;

[0022] S5.2, finishing: clamping the alloy aluminum wheel blank body on a CNC lathe to finish the surface of the alloy aluminum wheel blank body;

[0023] S5.3. Surface treatment: The surface of the alloy aluminum wheel blank is treated to obtain a finished alloy aluminum wheel.

[0024] In the above technical solution, the front mold core is on the first die-casting ring surface, with the first central cylinder as the center of symmetry, and is provided with a plurality of first material-reducing cylinders for forming weight-reducing holes; the rear mold core is on the second die-casting ring surface, with the second central cylinder as the center of symmetry, and is provided with a plurality of second material-reducing cylinders for forming weight-reducing holes; after the front mold core, the rear mold core and the core pulling are combined, the first material-reducing cylinder and the second material-reducing cylinder are coaxial, and there is no gap between the first material-reducing cylinder and the second material-reducing cylinder.

[0025] Compared with the prior art, the beneficial effects of the present invention are: 1. When using the alloy aluminum wheel, the rotating shaft or bearing is inserted into the heat-resistant ring, and the heat-resistant ring contacts the rotating shaft or bearing, thereby avoiding direct contact between the mounting ring on the wheel body and the rotating shaft or bearing, and the mounting ring and the mounting hole are not easily heated, so that the alloy aluminum wheel can be used with a high-temperature rotating shaft or bearing and is not easily deformed.

[0026] 2. In this alloy aluminum wheel manufacturing method, the wheel body, mounting ring and functional parts are integrally die-cast, and the material is different from that of the heat-resistant ring. The material cost is lower than that of the heat-resistant ring. During molding, the alloy material is heated to a lower temperature to meet the die-casting requirements of the wheel body, mounting ring and functional parts. The process cost is also lower than that of the heat-resistant ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional view of the alloy aluminum wheel in the first embodiment of the present invention.

[0028] Figure 2 This is an exploded view of the alloy aluminum wheel in Example 1 of the present invention.

[0029] Figure 3 It is a cross-sectional view of the alloy aluminum wheel in the first embodiment of the present invention.

[0030] Figure 4 It is a cross-sectional view of three stacked alloy aluminum wheels in Example 1 of the present invention.

[0031] Figure 5 This is a three-dimensional view of the die-casting mold in the first embodiment of the present invention.

[0032] Figure 6This is an exploded view of the die-casting mold in Example 1 of the present invention.

[0033] Figure 7 Another exploded view of the die-casting mold in the first embodiment of the present invention.

[0034] Figure 8 It is a cross-sectional view of the die-casting mold in the first embodiment of the present invention.

[0035] Fig. 9 for Figure 8 A is a partial enlarged view of the figure.

[0036] Fig.10 This is a three-dimensional view of the alloy aluminum wheel in the second embodiment of the present invention.

[0037] Fig.11 It is a cross-sectional view of the alloy aluminum wheel in the second embodiment of the present invention.

[0038] Fig.12 It is a three-dimensional view of the die-casting mold in the second embodiment of the present invention.

[0039] Fig.13 This is an exploded view of the die-casting mold in the second embodiment of the present invention.

[0040] Fig.14 It is a three-dimensional view of the rear mold core in the second embodiment of the present invention.

[0041] Fig.15 It is a cross-sectional view of the die-casting mold in the second embodiment of the present invention.

[0042] Fig.16 This is a three-dimensional view of the alloy aluminum wheel in the third embodiment of the present invention.

[0043] Fig.17 It is a cross-sectional view of the alloy aluminum wheel in the third embodiment of the present invention.

[0044] Fig.18 This is a three-dimensional view of the die-casting mold in the third embodiment of the present invention.

[0045] Fig.19 This is an exploded view of the die-casting mold in Example 3 of the present invention.

[0046] Fig. 20 This is a three-dimensional view of the rear mold core in the third embodiment of the present invention.

[0047] Fig.21 This is a cross-sectional view of the die-casting mold in the third embodiment of the present invention.

[0048] Fig. 22 for Fig.21 A partial enlarged view of B.

[0049] The accompanying drawings are marked as follows: 1, heat-resistant ring; 11, clamping groove; 21, wheel body; 22, mounting hole; 23, mounting ring; 24, weight-reducing hole; 25, wire storage part; 251, retaining wall; 252, clamping part; 253, assembly edge; 26, lead-in part; 261, retaining wall; 262, wire groove; 27, wire part; 271, retaining wall; 28, clamping rib; 3, front mold core; 31, first central cylinder; 32, first die-casting ring surface; 33. First annular bevel; 34. First groove; 35. First annular cavity; 36. First subtractive cylinder; 37. Runner; 38. Casting gate; 4. Back mold core; 41. Second central cylinder; 42. Second die-cast annular surface; 43. Second annular bevel; 44. First groove; 45. Second annular cavity; 46. Second subtractive cylinder; 47. Annular groove; 48. Square groove; 5. Core pulling; 51. Die-cast half ring; 52. Gap. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] The present invention provides an alloy aluminum wheel, comprising a wheel body 21 formed by die casting, wherein a mounting hole 22 is opened at the center of the wheel body 21, and the mounting hole 22 is a circular hole coaxial with the wheel body 21; mounting rings 23 are extended from the outer edges of both ends of the mounting hole 22 along the axial direction of the wheel body 21, and the mounting rings 23 are arranged to axially extend the mounting hole 22, so that the mounting hole 22 has a longer installation length, so that the alloy aluminum wheel can be adapted to multiple bearings or bearings with a longer length, and the axial matching length between the alloy aluminum wheel and the rotating shaft can be increased, and the alloy aluminum wheel is not prone to axial deviation during rotation; the outer periphery of the wheel body 21 forms a functional part, such as a wire storage part 25, a lead-in part 26 and a wire guide part 27, so that the alloy aluminum wheel has the functions of storing wires, separating parallel wires and guiding the direction of the wires.

[0052] In order to enable this alloy aluminum wheel to be used in conjunction with a high-temperature rotating shaft or bearing, this alloy aluminum wheel also includes a heat-resistant ring 1; the heat-resistant ring 1 is made of a high-temperature resistant metal material, such as ferrite heat-resistant steel, nickel-based high-temperature alloy and copper; the heat-resistant ring 1 is inserted into the mounting ring 23 and is coaxial with the mounting ring 23, and the heat-resistant ring 1 and the wheel body 21 are die-cast as one.

[0053] When this alloy aluminum wheel is in use, the shaft or bearing is inserted into the heat-resistant ring 1, and the heat-resistant ring 1 contacts the shaft or bearing, avoiding direct contact between the mounting ring 23 on the wheel body 21 and the shaft or bearing. The mounting ring 23 and the mounting hole 22 are not easily heated, so that this alloy aluminum wheel can be used with a high-temperature shaft or bearing and is not easily deformed. At the same time, the wheel body 21, the mounting ring 23 and the functional part are integrally die-cast, and the material is different from the heat-resistant ring 1, so the material cost is lower than that of the heat-resistant ring 1. During molding, the alloy material is heated to a lower temperature to meet the die-casting requirements of the wheel body 21, the mounting ring 23 and the functional part, and the process cost is also lower than that of the heat-resistant ring 1.

[0054] Furthermore, the outer ring of the heat-resistant ring 1 forms a locking groove 11. Specifically, the locking groove 11 is an inner concave portion arranged on the outer ring of the heat-resistant ring 1. The locking groove 11 is arranged around the heat-resistant ring 1 and is integrally formed with the heat-resistant ring 1; the inner ring of the mounting ring 23 forms a locking rib 28 matching the locking groove 11, and the locking rib 28 and the mounting ring 23 are integrally die-cast; the locking rib 28 of the mounting ring 23 is inserted into the locking groove 11 of the heat-resistant ring 1; the locking rib 28 and the locking groove 11 are arranged so that the heat-resistant ring 1 is not easily dislocated from the mounting ring 23 during rotation.

[0055] Furthermore, a plurality of weight-reducing holes 24 are provided on the wheel body 21 with the mounting hole 22 as the symmetrical center to save metal materials.

[0056] The present invention also provides a method for manufacturing an alloy aluminum wheel, which is used to manufacture the alloy aluminum wheel.

[0057] The alloy aluminum wheel manufacturing method uses a die-casting mold, which includes a front mold core 3, a rear mold core 4 and two core pulls 5; the materials of the front mold core 3, the rear mold core 4 and the core pulls 5 are all hot working die steel, such as steel type H13; the front mold core 3 and the rear mold core 4 are both formed with cavities by turning or laser processing.

[0058] The cavity of the front mold core 3 is provided with the following from the inside to the outside:

[0059] A first central cylinder 31, used to form the mounting hole 22;

[0060] A first groove 34 for forming the mounting ring 23;

[0061] A first die-cast annular surface 32, used for forming the wheel body 21;

[0062] A first functional cavity, used for forming a functional part;

[0063] The cavity of the rear mold core 4 is provided with the following from the inside to the outside:

[0064] A second central cylinder 41 is used to form the mounting hole 22;

[0065] A second groove 44 for forming the mounting ring 23;

[0066] The second die-casting annular surface 42 is used for forming the wheel body 21;

[0067] The second functional cavity is used for molding the functional part.

[0068] The first die-casting annular surface 32 is a flat horizontal surface on the front mold core 3, and the second die-casting annular surface 42 is a flat horizontal surface on the rear mold core 4. The front mold core 3 is also provided with a pouring gate 38 and a runner 37. The pouring gate 38 is opened on the side of the front mold core 3, and the two ends of the runner 37 are connected to the pouring gate 38 and the first functional cavity. In addition, square grooves 48 are respectively opened on both sides of the rear mold core 4, and the square grooves 48 are connected to the mold cavity for the two core pulls 5 to be inserted.

[0069] A die-cast half ring 51 is provided on the inner side of each core pulling piece 5, and the die-cast half ring 51 is formed by turning or laser processing. The two core pulling pieces 5 are opposite to each other and can be inserted into the mold cavity from between the front mold core 3 and the rear mold core 4; that is, the two core pulling pieces 5 are respectively inserted into the square grooves 48 on both sides of the rear mold core 4 until the two core pulling pieces 5 are against each other, at which time, the die-cast half ring 51 reaches the periphery of the mold cavity.

[0070] After the front mold core 3, the rear mold core 4 and the core pulling 5 are combined, the first central cylinder 31 and the second central cylinder 41 are coaxial, and there is no gap 52 between the first central cylinder 31 and the second central cylinder 41, the first groove 34 and the second groove 44 are coaxial, the first die-casting ring surface 32 and the second die-casting ring surface 42 are coaxial, and there is a gap 52 between the first die-casting ring surface 32 and the second die-casting ring surface 42 and they are parallel to each other, the first functional cavity and the second functional cavity are opposite to each other, and the die-casting half rings 51 on the two core pulling 5 are combined with each other to form a die-casting ring, and the die-casting ring is located between the first functional cavity and the second functional cavity.

[0071] The alloy aluminum wheel manufacturing method comprises the following steps:

[0072] S1, putting the heat-resistant ring 1 on the first central cylinder 31 of the front mold core 3 or the second central cylinder 41 of the rear mold core 4;

[0073] The inner ring radius of the heat-resistant ring 1 is the same as the outer radius of the first central cylinder 31 or the second central cylinder 41, so that the heat-resistant ring 1 can be just put on the first central cylinder 31 of the front mold core 3 or the second central cylinder 41 of the rear mold core 4; the outer ring radius of the heat-resistant ring 1 is smaller than the outer ring radius of the first groove 34 of the front mold core 3 or the second groove 44 of the rear mold core 4, so that the heat-resistant ring 1 can be located in the first groove 34 of the front mold core 3 or the second groove 44 of the rear mold core 4.

[0074] S2, combining the front mold core 3, the rear mold core 4 and the two core pullers 5 in the die-casting mold;

[0075] In this step, the front mold core 3, the rear mold core 4 and the two core pullers 5 are respectively installed on the corresponding mold frames, and then the mold frame is installed on the die-casting machine. During die-casting, the die-casting machine combines the front mold core 3, the rear mold core 4 and the two core pullers 5, so that the cavities of the front mold core 3 and the rear mold core 4 are combined, and the two core pullers 5 are respectively inserted from both sides until the die-casting half ring 51 reaches the cavity and is combined into a die-casting ring.

[0076] S3, pressurizing the molten alloy material and injecting it into the cavity of the die-casting mold;

[0077] In this embodiment, the alloy material is an aluminum alloy; the alloy material is first heated to a molten state, and then passed into a die-casting machine, the molten alloy material is pressurized by the die-casting machine, and then injected into the die-casting mold from the pouring port 38 of the front mold core 3 until the alloy material reaches the cavity.

[0078] The alloy material enters the cavity of the first groove 34 and the second groove 44 to form the mounting ring 23; the alloy material cannot enter the heat-resistant ring 1 to form the mounting hole 22 that passes through the mounting ring 23, and the alloy material enters the positioning groove 11 of the heat-resistant ring 1 to form the positioning rib 28 in the mounting ring 23; the alloy material enters the cavity between the first die-casting ring surface 32 and the second die-casting ring surface 42 to form the flat wheel body 21 of the alloy aluminum wheel and make the two surfaces of the wheel body 21 flat; the alloy material enters the first functional cavity and the second functional cavity, and cooperates with the die-casting ring to form the functional part of the alloy aluminum wheel.

[0079] S4, after the alloy material is cooled, the front mold core 3, the rear mold core 4 and the two core pullers 5 in the die-casting mold are opened, and the mold is demolded to obtain the alloy aluminum wheel blank;

[0080] After the alloy material is cooled, the heat-resistant ring 1 is die-casted as one with the wheel body 21. In this step, in some possible embodiments, the die-casting machine separates the front mold core 3 and the rear mold core 4, and simultaneously separates the two core pulls 5 by using the inclined guide pillars to open the mold cavity, and uses the ejector pin to eject the alloy aluminum wheel embryo body, so that the alloy aluminum wheel embryo body can be demolded; in other possible embodiments, the die-casting machine first separates the front mold core 3 and the rear mold core 4, and then uses the hydraulic cylinder to pull the two core pulls 5 apart to open the mold cavity, and uses the ejector pin to eject the alloy aluminum wheel embryo body, so that the alloy aluminum wheel embryo body can be demolded.

[0081] S5. Processing the alloy aluminum wheel embryo to obtain a finished alloy aluminum wheel.

[0082] Specifically, step S5 includes:

[0083] S5.1. Rough machining: The alloy aluminum wheel blank can be punched to remove the die-casting nozzles, runners and excess scraps connected to the alloy aluminum wheel blank. Of course, manual shearing can also be used to remove the die-casting nozzles, runners and excess scraps connected to the alloy aluminum wheel blank.

[0084] S5.2, finishing: clamping the alloy aluminum wheel blank body on a CNC lathe to finish the surface of the alloy aluminum wheel blank body;

[0085] S5.3, Surface treatment: Treat the surface of the alloy aluminum wheel embryo to obtain a finished alloy aluminum wheel. Specifically, the surface of the alloy aluminum wheel embryo can be subjected to black anodizing, aluminum anodizing, sandblasting oxidation, baking paint and other surface treatment processes to meet different usage requirements. For example, the surface of the alloy aluminum wheel embryo is subjected to aluminum anodizing, and the alloy aluminum wheel embryo is placed in a corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as an anode, and electrolysis is performed under specific conditions and an applied current. The alloy aluminum wheel embryo at the anode is oxidized to form a thin aluminum oxide layer with a thickness of 5 to 20 microns on its surface, and the surface hardness can reach HV300 to HV500.

[0086] Hereinafter, three embodiments are provided to further illustrate the technical solutions of the present invention. The technical solutions in the three embodiments are all optimizations or specific descriptions based on the above technical solutions.

[0087] Embodiment 1:

[0088] See also Figure 1-Figure 4 This embodiment provides an alloy aluminum wheel, whose functional part is a wire storage part 25.

[0089] The alloy aluminum wheel includes a wheel body 21, and a mounting hole 22 is opened in the middle of the wheel body 21; mounting rings 23 are extended from the outer edges of both ends of the mounting hole 22 along the axial direction of the wheel body 21 to adapt to more bearings; a plurality of weight-reducing holes 24 are opened on the wheel body 21 with the mounting hole 22 as the symmetric center to save metal materials; the outer peripheral surface of the wheel body 21 is a wire storage portion 25, and both sides of the wire storage portion 25 are retaining walls 251, wherein the top of the retaining wall 251 on one side is a clamping portion 252, and the top of the retaining wall 251 on the other side is axially folded to form an assembly edge 253; when the alloy aluminum wheels need to be stacked for use, the clamping portion 252 of the previous alloy aluminum wheel can be clamped into the assembly edge 253 of the next alloy aluminum wheel.

[0090] This alloy aluminum wheel also includes a heat-resistant ring 1; the heat-resistant ring 1 is made of a high-temperature resistant metal material, such as ferrite heat-resistant steel, nickel-based high-temperature alloy and copper; the heat-resistant ring 1 is inserted into the mounting ring 23 and is coaxial with the mounting ring 23, and the heat-resistant ring 1 and the wheel body 21 are die-cast as a whole.

[0091] Furthermore, the outer ring of the heat-resistant ring 1 forms a locking groove 11. Specifically, the locking groove 11 is an inner concave portion arranged on the outer ring of the heat-resistant ring 1. The locking groove 11 is arranged around the heat-resistant ring 1 and is integrally formed with the heat-resistant ring 1; the inner ring of the mounting ring 23 forms a locking rib 28 matching the locking groove 11, and the locking rib 28 and the mounting ring 23 are integrally die-cast; the locking rib 28 of the mounting ring 23 is inserted into the locking groove 11 of the heat-resistant ring 1; the locking rib 28 and the locking groove 11 are arranged so that the heat-resistant ring 1 is not easily dislocated from the mounting ring 23 during rotation.

[0092] See also Figure 5-Figure 9 In the die-casting mold, the first functional cavity is a first annular slope 33 inclined toward the solid side of the front mold core 3. The first annular slope 33 is a flat slope for forming the wire storage portion 25 and the clamping portion 252; the second functional cavity is a second annular slope 43 inclined toward the solid side of the rear mold core 4 and an annular groove 47 surrounding the second annular slope 43. The second annular slope 43 is a flat slope for forming the wire storage portion 25. The position of the annular groove 47 is lower than the bottom of the second annular slope 43 and is used to form the assembly edge 253; after the front mold core 3, the rear mold core 4 and the core pulling 5 are combined, the first annular slope 33 and the second annular slope 43 are symmetrical with the joint surface of the front mold core 3 and the rear mold core 4 as the center.

[0093] Furthermore, the front mold core 3 is provided with a plurality of first material-reducing cylinders 36 for forming weight-reducing holes 24 on the first die-casting annular surface 32, with the first central cylinder 31 as the center of symmetry; the rear mold core 4 is provided with a plurality of second material-reducing cylinders 46 for forming weight-reducing holes 24 on the second die-casting annular surface 42, with the second central cylinder 41 as the center of symmetry; after the front mold core 3, the rear mold core 4 and the core pulling 5 are combined, the first material-reducing cylinder 36 and the second material-reducing cylinder 46 are coaxial, and there is no gap 52 between the first material-reducing cylinder 36 and the second material-reducing cylinder 46.

[0094] This embodiment also provides a method for manufacturing an alloy aluminum wheel, which is used to manufacture the above-mentioned alloy aluminum wheel. The method uses the above-mentioned die-casting mold and includes the following steps:

[0095] S1, putting the heat-resistant ring 1 on the first central cylinder 31 of the front mold core 3;

[0096] S2, combining the front mold core 3, the rear mold core 4 and the two core pullers 5 in the die-casting mold;

[0097] In this step, the front mold core 3, the rear mold core 4 and the two core pulling pieces 5 are respectively installed on the corresponding mold frames, and then the mold frames are installed on the die-casting machine. During die-casting, the die-casting machine combines the front mold core 3, the rear mold core 4 and the two core pulling pieces 5, combines the mold cavities of the front mold core 3 and the rear mold core 4, and inserts the two core pulling pieces 5 from both sides until the die-casting half ring 51 reaches the mold cavity.

[0098] S3. Pressurize the molten alloy material and inject it into the cavity of the die-casting mold.

[0099] In this embodiment, the alloy material is an aluminum alloy; the alloy material is first heated to a molten state, and then passed into a die-casting machine, the molten alloy material is pressurized by the die-casting machine, and then injected into the die-casting mold from the pouring port 38 of the front mold core 3 until the alloy material reaches the cavity.

[0100] The alloy material enters the cavity of the first groove 34 and the second groove 44 to form the mounting ring 23; the alloy material cannot enter the heat-resistant ring 1 to form the mounting hole 22 that passes through the mounting ring 23, and the alloy material enters the positioning groove 11 of the heat-resistant ring 1 to form the positioning rib 28 in the mounting ring 23; the alloy material enters the cavity between the first die-casting ring surface 32 and the second die-casting ring surface 42 to form the flat wheel body 21 of the alloy aluminum wheel and make the two surfaces of the wheel body 21 flat; the alloy material enters the first annular bevel 33, the second annular bevel 43 and the cavity between the die-casting ring to form the wire storage part 25 and the clamping part 252; the alloy material also enters the annular groove 47 of the rear mold core 4 to form the assembly edge 253; the alloy material cannot enter the first material-reducing cylinder 36 and the second material-reducing cylinder 46 to form the weight-reducing hole 24 that passes through the wheel body 21.

[0101] S4, after the alloy material is cooled, the front mold core 3, the rear mold core 4 and the two core pullers 5 in the die-casting mold are opened, and the mold is demolded to obtain the alloy aluminum wheel blank.

[0102] After the alloy material is cooled, the heat-resistant ring 1 is die-casted as one with the wheel body 21. In this step, the die-casting machine separates the front mold core 3 and the rear mold core 4, and simultaneously uses the inclined guide pins to separate the two core pullers 5, so that the cavity is opened, and the alloy aluminum wheel embryo is ejected using an ejector pin, so that the alloy aluminum wheel embryo is demolded.

[0103] S5. Processing the alloy aluminum wheel embryo to obtain a finished alloy aluminum wheel.

[0104] Specifically, step S5 includes:

[0105] S5.1. Rough machining: The alloy aluminum wheel blank can be punched to remove the die-casting nozzles, runners and excess scraps connected to the alloy aluminum wheel blank. Of course, manual shearing can also be used to remove the die-casting nozzles, runners and excess scraps connected to the alloy aluminum wheel blank.

[0106] S5.2, finishing: clamping the alloy aluminum wheel blank body on a CNC lathe to finish the surface of the alloy aluminum wheel blank body;

[0107] S5.3, Surface treatment: Treat the surface of the alloy aluminum wheel embryo to obtain a finished alloy aluminum wheel. Specifically, the surface of the alloy aluminum wheel embryo can be subjected to black anodizing, aluminum anodizing, sandblasting oxidation, baking paint and other surface treatment processes to meet different usage requirements. For example, the surface of the alloy aluminum wheel embryo is subjected to aluminum anodizing, and the alloy aluminum wheel embryo is placed in a corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as an anode, and electrolysis is performed under specific conditions and an applied current. The alloy aluminum wheel embryo at the anode is oxidized to form a thin aluminum oxide layer with a thickness of 5 to 20 microns on its surface, and the surface hardness can reach HV300 to HV500.

[0108] The finished alloy aluminum wheel after processing is used as a wire storage wheel.

[0109] Embodiment 2:

[0110] See also Figure 10-11 This embodiment provides an alloy aluminum wheel, whose functional part is the extraction part 26.

[0111] The alloy aluminum wheel includes a wheel body 21, and a mounting hole 22 is opened in the middle of the wheel body 21; mounting rings 23 are extended from the outer edges of both ends of the mounting hole 22 along the axial direction of the wheel body 21 to accommodate more bearings; a plurality of weight-reducing holes 24 are opened on the wheel body 21 with the mounting hole 22 as the symmetric center to save metal materials; both sides of the outer peripheral edge of the wheel body 21 extend axially outward symmetrically to form a lead-in portion 26, and a plurality of retaining walls 261 are arranged side by side on the lead-in portion 26, and a wire groove 262 is provided between every two retaining walls 261.

[0112] This alloy aluminum wheel also includes a heat-resistant ring 1; the heat-resistant ring 1 is made of a high-temperature resistant metal material, such as ferrite heat-resistant steel, nickel-based high-temperature alloy and copper; the heat-resistant ring 1 is inserted into the mounting ring 23 and is coaxial with the mounting ring 23, and the heat-resistant ring 1 and the wheel body 21 are die-cast as a whole.

[0113] Furthermore, the outer ring of the heat-resistant ring 1 forms a locking groove 11. Specifically, the locking groove 11 is an inner concave portion arranged on the outer ring of the heat-resistant ring 1. The locking groove 11 is arranged around the heat-resistant ring 1 and is integrally formed with the heat-resistant ring 1; the inner ring of the mounting ring 23 forms a locking rib 28 matching the locking groove 11, and the locking rib 28 and the mounting ring 23 are integrally die-cast; the locking rib 28 of the mounting ring 23 is inserted into the locking groove 11 of the heat-resistant ring 1; the locking rib 28 and the locking groove 11 are arranged so that the heat-resistant ring 1 is not easily dislocated from the mounting ring 23 during rotation.

[0114] See also Figure 12-Figure 15In the die-casting mold, the first functional cavity is the first annular cavity 35, which is a circular cavity surrounding the first die-casting ring surface 32, and its bottom position is deeper into the front mold core 3 than the first die-casting ring surface 32; the second functional cavity is the second annular cavity 45, which is a circular cavity surrounding the second die-casting ring surface 42, and its bottom position is deeper into the rear mold core 4 than the second die-casting ring surface 42.

[0115] There are more than two die-cast half rings 51 on each core puller 5 , and there is a gap 52 between every two die-cast half rings 51 . Moreover, the gap 52 between each die-cast half ring 51 of the core puller 5 is uniform.

[0116] Furthermore, the front mold core 3 is provided with a plurality of first material-reducing cylinders 36 for forming weight-reducing holes 24 on the first die-casting annular surface 32, with the first central cylinder 31 as the center of symmetry; the rear mold core 4 is provided with a plurality of second material-reducing cylinders 46 for forming weight-reducing holes 24 on the second die-casting annular surface 42, with the second central cylinder 41 as the center of symmetry; after the front mold core 3, the rear mold core 4 and the core pulling 5 are combined, the first material-reducing cylinder 36 and the second material-reducing cylinder 46 are coaxial, and there is no gap 52 between the first material-reducing cylinder 36 and the second material-reducing cylinder 46.

[0117] This embodiment also provides a method for manufacturing an alloy aluminum wheel, which is used to manufacture the above-mentioned alloy aluminum wheel. The method uses the above-mentioned die-casting mold and includes the following steps:

[0118] S1, putting the heat-resistant ring 1 on the second central cylinder 41 of the rear mold core 4;

[0119] S2, combining the front mold core 3, the rear mold core 4 and the two core pullers 5 in the die-casting mold;

[0120] In this step, the front mold core 3, the rear mold core 4 and the two core pulling pieces 5 are respectively installed on the corresponding mold frames, and then the mold frames are installed on the die-casting machine. During die-casting, the die-casting machine combines the front mold core 3, the rear mold core 4 and the two core pulling pieces 5, combines the mold cavities of the front mold core 3 and the rear mold core 4, and inserts the two core pulling pieces 5 from both sides until the die-casting half ring 51 reaches the mold cavity.

[0121] S3. Pressurize the molten alloy material and inject it into the cavity of the die-casting mold.

[0122] In this embodiment, the alloy material is an aluminum alloy; the alloy material is first heated to a molten state, and then passed into a die-casting machine, the molten alloy material is pressurized by the die-casting machine, and then injected into the die-casting mold from the pouring port 38 of the front mold core 3 until the alloy material reaches the cavity.

[0123] The alloy material enters the cavity of the first groove 34 and the second groove 44 to form the mounting ring 23; the alloy material cannot enter the heat-resistant ring 1 to form the mounting hole 22 that passes through the mounting ring 23, and the alloy material enters the positioning groove 11 of the heat-resistant ring 1 to form the positioning rib 28 in the mounting ring 23; the alloy material enters the cavity between the first die-casting ring surface 32 and the second die-casting ring surface 42 to form the flat wheel body 21 of the alloy aluminum wheel and make the two surfaces of the wheel body 21 flat; the alloy material enters the cavity of the first annular cavity 35 and the second annular cavity 45 to form the lead-in portion 26 extending axially from the outer periphery of the wheel body 21, and the alloy material also enters the gap 52 between each two die-casting half rings 51 to form multiple retaining walls 261 on the lead-in portion 26; the alloy material cannot enter the first reduction cylinder 36 and the second reduction cylinder 46 to form the weight-reducing hole 24 that passes through the wheel body 21.

[0124] S4, after the alloy material is cooled, the front mold core 3, the rear mold core 4 and the two core pullers 5 in the die-casting mold are opened, and the mold is demolded to obtain the alloy aluminum wheel blank.

[0125] After the alloy material is cooled, the heat-resistant ring 1 is die-casted as one with the wheel body 21. In this step, the die-casting machine first separates the front mold core 3 and the rear mold core 4, and then uses a hydraulic cylinder to pull the two core pullers 5 apart to open the cavity, and uses an ejector pin to eject the alloy aluminum wheel embryo body, so that the alloy aluminum wheel embryo body can be demolded.

[0126] S5. Processing the alloy aluminum wheel embryo to obtain a finished alloy aluminum wheel.

[0127] Specifically, step S5 includes:

[0128] S5.1. Rough machining: The alloy aluminum wheel blank can be punched to remove the die-casting nozzles, runners and excess scraps connected to the alloy aluminum wheel blank. Of course, manual shearing can also be used to remove the die-casting nozzles, runners and excess scraps connected to the alloy aluminum wheel blank.

[0129] S5.2, finishing: clamping the alloy aluminum wheel blank body on a CNC lathe to finish the surface of the alloy aluminum wheel blank body;

[0130] S5.3, Surface treatment: Treat the surface of the alloy aluminum wheel embryo to obtain a finished alloy aluminum wheel. Specifically, the surface of the alloy aluminum wheel embryo can be subjected to black anodizing, aluminum anodizing, sandblasting oxidation, baking paint and other surface treatment processes to meet different usage requirements. For example, the surface of the alloy aluminum wheel embryo is subjected to aluminum anodizing, and the alloy aluminum wheel embryo is placed in a corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as an anode, and electrolysis is performed under specific conditions and an applied current. The alloy aluminum wheel embryo at the anode is oxidized to form a thin aluminum oxide layer with a thickness of 5 to 20 microns on its surface, and the surface hardness can reach HV300 to HV500.

[0131] The finished alloy aluminum wheel after processing is used as a guide wheel.

[0132] Embodiment three:

[0133] See also Figure 16-Figure 17 This embodiment provides an alloy aluminum wheel, whose functional part is the wire part 27.

[0134] The alloy aluminum wheel includes a wheel body 21, and a mounting hole 22 is opened in the middle of the wheel body 21; mounting rings 23 are extended from the outer edges of both ends of the mounting hole 22 along the axial direction of the wheel body 21 to adapt to more bearings; the outer peripheral surface of the wheel body 21 is a wire portion 27, and both sides of the wire portion 27 are retaining walls 271, and the wire portion 27 is the functional part of the guide wheel.

[0135] This alloy aluminum wheel also includes a heat-resistant ring 1; the heat-resistant ring 1 is made of a high-temperature resistant metal material, such as ferrite heat-resistant steel, nickel-based high-temperature alloy and copper; the heat-resistant ring 1 is inserted into the mounting ring 23 and is coaxial with the mounting ring 23, and the heat-resistant ring 1 and the wheel body 21 are die-cast as a whole.

[0136] Furthermore, the outer ring of the heat-resistant ring 1 forms a locking groove 11. Specifically, the locking groove 11 is an inner concave portion arranged on the outer ring of the heat-resistant ring 1. The locking groove 11 is arranged around the heat-resistant ring 1 and is integrally formed with the heat-resistant ring 1; the inner ring of the mounting ring 23 forms a locking rib 28 matching the locking groove 11, and the locking rib 28 and the mounting ring 23 are integrally die-cast; the locking rib 28 of the mounting ring 23 is inserted into the locking groove 11 of the heat-resistant ring 1; the locking rib 28 and the locking groove 11 are arranged so that the heat-resistant ring 1 is not easily dislocated from the mounting ring 23 during rotation.

[0137] See also Figure 18-Figure 22In the die-casting mold, the front core 3 and the rear core 4 are provided with at least two cavities; the first functional cavity is a first annular slope 33 inclined toward the solid side of the front core 3, the first annular slope 33 is a flat slope, and is used to form the retaining wall 271; the second functional cavity is a second annular slope 43 inclined toward the solid side of the rear core 4, the second annular slope 43 is a flat slope, and is used to form the retaining wall 271; the inner side of each core pull 5 is provided with a trapezoidal semi-ring corresponding to the number of cavities. In this embodiment, the front core 3 and the rear core 4 are provided with two cavities, and accordingly, in each core pull 5, two die-casting semi-rings 51 are provided; the flow channel 37 is sequentially connected to the first annular slope 33 in the two cavities. In other embodiments, the cavity can be set to three or four, and accordingly, in each core pull 5, three or four die-casting semi-rings 51 are provided; the flow channel 37 is sequentially connected to the first annular slope 33 in each cavity.

[0138] This embodiment also provides a method for manufacturing an alloy aluminum wheel, which is used to manufacture the above-mentioned alloy aluminum wheel and can form multiple alloy aluminum wheels at one time. The method uses the above-mentioned die-casting mold and includes the following steps:

[0139] S1, putting the heat-resistant ring 1 on the first central cylinder 31 of the front mold core 3;

[0140] In this embodiment, the front mold core 3 has more than two cavities, and a heat-resistant ring 1 is sleeved on the first central cylinder 31 in each cavity.

[0141] S2, combining the front mold core 3, the rear mold core 4 and the two core pullers 5 in the die-casting mold;

[0142] In this step, the front mold core 3, the rear mold core 4 and the two core pulling pieces 5 are respectively installed on the corresponding mold frames, and then the mold frames are installed on the die-casting machine. During die-casting, the die-casting machine combines the front mold core 3, the rear mold core 4 and the two core pulling pieces 5, combines the mold cavities of the front mold core 3 and the rear mold core 4, and inserts the two core pulling pieces 5 from both sides until the die-casting half ring 51 reaches the mold cavity.

[0143] S3. Pressurize the molten alloy material and inject it into the cavity of the die-casting mold.

[0144] In this embodiment, the alloy material is an aluminum alloy; the alloy material is first heated to a molten state, and then passed into a die-casting machine, the molten alloy material is pressurized by the die-casting machine, and then injected into the die-casting mold from the pouring port 38 of the front mold core 3 until the alloy material reaches the cavity.

[0145] The alloy material enters the cavity of the first groove 34 and the second groove 44 to form the mounting ring 23; the alloy material cannot enter the heat-resistant ring 1 to form the mounting hole 22 that passes through the mounting ring 23, and the alloy material enters the positioning groove 11 of the heat-resistant ring 1 to form the positioning rib 28 in the mounting ring 23; the alloy material enters the cavity between the first die-casting ring surface 32 and the second die-casting ring surface 42 to form the flat wheel body 21 of the alloy aluminum wheel and make the two surfaces of the wheel body 21 flat; the alloy material enters the cavity between the first annular bevel 33, the second annular bevel 43 and the die-casting ring to form the wire portion 27.

[0146] S4, after the alloy material is cooled, the front mold core 3, the rear mold core 4 and the two core pullers 5 in the die-casting mold are opened, and the mold is demolded to obtain the alloy aluminum wheel blank.

[0147] After the alloy material is cooled, the heat-resistant ring 1 is die-casted as one with the wheel body 21. In this step, the die-casting machine separates the front mold core 3 and the rear mold core 4, and simultaneously uses the inclined guide pins to separate the two core pullers 5, so that the cavity is opened, and the multiple alloy aluminum wheel blanks are ejected using ejectors, so that the alloy aluminum wheel blanks can be demolded.

[0148] S5. Processing the alloy aluminum wheel embryo to obtain a finished alloy aluminum wheel.

[0149] Specifically, step S5 includes:

[0150] S5.1. Rough machining: The alloy aluminum wheel blank can be punched to remove the die-casting nozzles, runners and excess scraps connected to the alloy aluminum wheel blank. Of course, manual shearing can also be used to remove the die-casting nozzles, runners and excess scraps connected to the alloy aluminum wheel blank.

[0151] S5.2, finishing: clamping the alloy aluminum wheel blank body on a CNC lathe to finish the surface of the alloy aluminum wheel blank body;

[0152] S5.3, Surface treatment: Treat the surface of the alloy aluminum wheel embryo to obtain a finished alloy aluminum wheel. Specifically, the surface of the alloy aluminum wheel embryo can be subjected to black anodizing, aluminum anodizing, sandblasting oxidation, baking paint and other surface treatment processes to meet different usage requirements. For example, the surface of the alloy aluminum wheel embryo is subjected to aluminum anodizing, and the alloy aluminum wheel embryo is placed in a corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as an anode, and electrolysis is performed under specific conditions and an applied current. The alloy aluminum wheel embryo at the anode is oxidized to form a thin aluminum oxide layer with a thickness of 5 to 20 microns on its surface, and the surface hardness can reach HV300 to HV500.

[0153] The finished alloy aluminum wheel after processing is used as a guide wheel.

[0154] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An alloy aluminum wheel, comprising a die-cast wheel body, a mounting hole is provided at the center of the wheel body, mounting rings are extended from both ends of the mounting hole along the axial direction of the wheel body, and the periphery of the wheel body forms a functional part; characterized in that: It also includes a heat-resistant ring that is inserted into the mounting ring and coaxial with the mounting ring, and the heat-resistant ring is die-casted as a whole with the wheel body; The manufacturing method of the alloy aluminum wheel uses a die-casting mold, and the die-casting mold includes a front mold core, a rear mold core and two core pulls; The cavity of the front mold core is provided with a first central cylinder for forming a mounting hole, a first groove for forming a mounting ring, a first die-casting annular surface for forming a wheel body, and a first functional cavity for forming a functional part in sequence from the inside to the outside; The cavity of the rear mold core is provided with, from inside to outside, a second central cylinder for forming a mounting hole, a second groove for forming a mounting ring, a second die-casting annular surface for forming a wheel body, and a second functional cavity for forming a functional part; A die-casting half ring is provided on the inner side of each core puller, and two core pullers are opposite to each other and can be inserted into the mold cavity from between the front mold core and the rear mold core; After the front mold core, the rear mold core and the core pulling are combined, the first central cylinder and the second central cylinder are coaxial, and there is no gap between the first central cylinder and the second central cylinder, the first groove and the second groove are coaxial, the first die-casting ring surface and the second die-casting ring surface are coaxial, and there is a gap between the first die-casting ring surface and the second die-casting ring surface and they are parallel to each other, the first functional cavity and the second functional cavity are opposite to each other, and the two die-casting half rings on the core pulling are combined with each other to form a die-casting ring, and the die-casting ring is located between the first functional cavity and the second functional cavity; The alloy aluminum wheel manufacturing method comprises the following steps: S1, putting a heat-resistant ring on the first central cylinder of the front mold core or the second central cylinder of the rear mold core; S2, combining the front mold core, the rear mold core and two core pulling pieces in the die casting mold; S3, pressurizing the molten alloy material and injecting it into the cavity of the die-casting mold; S4, after the alloy material is cooled, the front mold core, the rear mold core and the two core pulling pieces in the die-casting mold are opened, and the mold is demolded to obtain an alloy aluminum wheel blank; S5, processing the alloy aluminum wheel blank to obtain a finished alloy aluminum wheel.

2. The alloy aluminum wheel according to claim 1, characterized in that: The outer ring of the heat-resistant ring forms a locking groove, the inner ring of the installation ring forms a locking rib matching the locking groove, and the locking rib of the installation ring is locked in the locking groove of the heat-resistant ring.

3. The alloy aluminum wheel according to claim 1, characterized in that: The wheel body is provided with a plurality of weight-reducing holes with the mounting hole as the symmetric center.

4. The alloy aluminum wheel according to claim 1, characterized in that: The functional part is a wire storage part.

5. The alloy aluminum wheel according to claim 1, characterized in that: The functional part is the extraction part.

6. The alloy aluminum wheel according to claim 1, characterized in that: The functional portion is a wire portion.

7. The method for manufacturing an alloy aluminum wheel according to claim 1, characterized in that: Step S5 specifically includes: S5.1, Rough machining: remove the die-casting nozzle, runner and excess scraps connected to the alloy aluminum wheel blank; S5.2, finishing: clamping the alloy aluminum wheel blank body on a CNC lathe to finish the surface of the alloy aluminum wheel blank body; S5.

3. Surface treatment: The surface of the alloy aluminum wheel blank is treated to obtain a finished alloy aluminum wheel.

8. The method for manufacturing an alloy aluminum wheel according to claim 1, characterized in that: The front mold core is provided with a plurality of first material-reducing cylinders for forming weight-reducing holes on the first die-casting annular surface, with the first central cylinder as the symmetry center; The rear mold core is provided with a plurality of second material-reducing cylinders for forming weight-reducing holes on the second die-casting annular surface, with the second central cylinder as the symmetry center; After the front mold core, the rear mold core and the core pulling are combined, the first subtractive cylinder and the second subtractive cylinder are coaxial, and there is no gap between the first subtractive cylinder and the second subtractive cylinder.

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