CN111975347A - Assembling method of aluminum-steel-rubber composite structure wheel disc assembly - Google Patents
Assembling method of aluminum-steel-rubber composite structure wheel disc assembly Download PDFInfo
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- CN111975347A CN111975347A CN202010727545.8A CN202010727545A CN111975347A CN 111975347 A CN111975347 A CN 111975347A CN 202010727545 A CN202010727545 A CN 202010727545A CN 111975347 A CN111975347 A CN 111975347A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 78
- 239000010959 steel Substances 0.000 claims abstract description 78
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 61
- 238000005242 forging Methods 0.000 claims abstract description 44
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 36
- 238000003754 machining Methods 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 33
- 238000003466 welding Methods 0.000 claims description 17
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- 238000010073 coating (rubber) Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 8
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 5
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/32—Making machine elements wheels; discs discs, e.g. disc wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/007—Spot arc welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Forging (AREA)
Abstract
The invention belongs to the field of metal material processing, and relates to an assembly method of an aluminum-steel-rubber composite structure wheel disc assembly. The method comprises the following steps: isothermal die forging preparation aluminum alloy wheel disc forging → rough machining of wheel disc die forging → radial interference assembly of the wear-resistant steel ring and the aluminum alloy wheel disc → axial fixing and stopping assembly of the wear-resistant steel ring and the aluminum alloy wheel disc. The manufacturing method of the wheel disc assembly part can ensure the structural stability of steel-aluminum combination, prevent the abrasion-resistant ring from falling off, realize the light weight of the wheel disc part, ensure the abrasion resistance and the corrosion resistance of the aluminum alloy wheel disc and improve the reliability of the wheel disc assembly part.
Description
Technical Field
The invention belongs to the field of metal material processing and assembling, and particularly relates to an assembling method of a wheel disc assembly, in particular to an assembling method of an aluminum-steel-rubber composite structure wheel disc assembly.
Background
In order to realize light weight of the armored vehicle, wheel disc assembly parts serving as closing parts of the moving mechanism are replaced by cast steel parts and aluminum-steel integrated parts, in the existing aluminum-steel assembly process, a wear-resistant steel ring is tightly connected with a bogie wheel through a fastening bolt, and a connecting concave hole on the wear-resistant steel ring is welded and sealed, as shown in patent CN104129228A (assembling method of a tracked vehicle load-bearing wheel disc assembly).
But in the use process, the phenomenon that the wear-resistant steel ring is separated from the aluminum wheel disc due to the loosening of the fastening bolt is found in the wheel disc assembly with the assembly structure, so that the service life and the service life of the equipment are seriously influenced.
Therefore, in order to solve the above problems, it is necessary to develop an assembly method for improving the assembly bonding force between the aluminum alloy wheel disc and the wear-resistant steel ring.
Disclosure of Invention
The purpose of the invention is: the assembling method of the aluminum-steel-rubber composite structure wheel disc assembly is provided, the structural performance uniformity of the aluminum alloy wheel disc is improved, the problem that the abrasion-resistant steel ring and the aluminum alloy wheel disc structure are difficult to assemble is solved, and the structural reliability of parts of the wheel disc assembly is improved.
In order to solve the technical problem, the technical scheme of the invention is as follows:
the assembling method of the aluminum-steel-rubber composite structure wheel disc assembly is characterized in that the aluminum wheel disc and the wear-resistant steel ring are assembled and combined in a radial interference assembling mode, the wear-resistant steel ring and the aluminum wheel disc are axially combined in a steel wire thread insert assembling and stop bolt reinforcing mode, and a high-low temperature resistant rubber coating is coated on a combining interface of the wear-resistant steel ring and the aluminum wheel disc to prevent electrochemical corrosion of the combining interface of steel and aluminum.
The assembly method comprises the following steps:
step one, roughly processing a wheel disc die forging and a wear-resistant steel ring:
firstly, carrying out rough machining on an aluminum alloy wheel disc die forging and a wear-resistant steel ring so as to meet the interference assembly size: inner diameter D of wheel disc and wear-resisting ring in assembling contact0Wear-resisting steel ring external diameter D assembled with aluminum wheel disc in contact mode1Satisfies the following conditions: d1＝D0+(0.1～0.6)mm；
Step two, radial interference fit of the wear-resistant steel ring and the aluminum alloy wheel disc: the interference adopts the scheme of 'aluminum clad steel', the aluminum alloy wheel disc is transferred to a working platform, and the inner diameter D of the aluminum wheel disc is within 10s0Spraying a layer of high and low temperature resistant rubber coating on the surface, correspondingly assembling the wear-resistant steel ring and the hot aluminum alloy wheel disc together, completing the assembling process within 5s, and simultaneously pressing the plane of the wear-resistant ring to prevent warping until the aluminum alloy wheel disc is restored to the room temperature;
step three, axially fixing and stopping the wear-resistant steel ring and the aluminum alloy wheel disc for assembly: the method comprises the steps of machining a pre-buried hole in the axial direction in the position of a fixed shaft hole of an aluminum alloy wheel disc with a wear-resistant ring, fixedly screwing the aluminum wheel disc and the wear-resistant ring through a steel wire thread insert, spraying a layer of high and low temperature resistant rubber coating in the aluminum alloy shaft hole before installing the steel wire thread insert, and finally welding a bolt of the steel wire thread insert and the wear-resistant ring together in a spot welding mode to play a role in preventing the ring from falling off.
The specific scheme of the aluminum-clad steel scheme is one of the following two schemes:
one way of expanding an aluminum alloy wheel disc by heating is as follows:
heating the roughly processed aluminum alloy wheel disc parts to 90-100 ℃, preserving heat for 20-30 min, and controlling the inner diameter D of the contact position of the aluminum wheel disc and the wear-resistant steel ring0Expanded to be larger than the outer diameter D of the wear-resistant steel ring1。
The utility model provides a, adopts the mode that carries out low temperature shrinkage with wear-resisting steel ring:
placing the wear-resistant steel ring in a liquid nitrogen incubator at-120 ℃ to-130 ℃ for heat preservation for 8min to 10 min; controlling the outer diameter D of the wear-resistant steel ring1Smaller than the inner diameter D of the aluminum wheel disc at the contact position of the aluminum wheel disc and the wear-resistant steel ring0。
The two modes of the aluminum-clad steel scheme can be combined for use, and the size requirement of interference assembly can be met.
Preferably, the spraying speed of the rubber coating in the second step is 3000mm2/s～50000mm2/s。
Preferably, the third step of spot welding is manual argon arc welding, and the specific parameters are as follows: the argon arc welding current is 60-80A, and the arc voltage is controlled to be 8-20V.
The aluminum alloy wheel disc material in the assembly method is 7XXX aluminum alloy. The 7XXX aluminum alloys are prepared using isothermal mold sections.
The preparation method of the isothermal mold section comprises the following steps:
preparing an aluminum alloy wheel disc forging by isothermal die forging: the forging machine is an isothermal die forging press with the temperature of more than 10000T, the heating temperature of a die is 350-400 ℃, the initial forging temperature of isothermal die forging is 380-420 ℃, and the final forging temperature is more than or equal to 350 ℃; and carrying out solid solution aging treatment on the wheel disc, wherein a specific heat treatment system is formulated according to performance requirements.
Preferably, in the first step, the aluminum alloy wheel disc die forging and the wear-resistant steel ring are roughly machined to the size required by assembly by using a numerical control lathe and a machining center.
Preferably, in the second step, a flat plate tool is adopted to press the plane of the wear-resistant ring to prevent warping.
The invention has the beneficial effects that:
according to the assembling method of the aluminum-steel-rubber composite structure wheel disc assembly, the high-strength aluminum alloy wheel disc is prepared by the isothermal die forging process, the uniformity of the structural performance of the wheel disc is improved, the abrasion-resistant steel ring is combined with the aluminum alloy wheel disc without falling off by the radial interference assembly, the axial steel wire thread insert fixing and the spot welding stopping method, the structural reliability of parts of the wheel disc assembly is improved, and the electrochemical corrosion of a steel-aluminum combination interface is prevented by adopting the high-low temperature resistant special rubber coating.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Features of various aspects of embodiments of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. The following description of the embodiments is merely intended to better understand the present invention by illustrating examples thereof. The present invention is not limited to any particular arrangement or method provided below, but rather covers all product structures, any modifications, alterations, etc. of the method covered without departing from the spirit of the invention.
In the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention. The assembling method of the aluminum-steel-rubber composite structure wheel disc assembly adopts the isothermal die section to prepare the aluminum alloy wheel disc die forging with uniform tissue property and large size specification, adopts the radial interference assembling mode to realize the high-efficiency combination of the aluminum wheel disc and the steel wear-resisting ring, adopts the steel wire swivel nut assembling and the stop bolt method to reinforce the axial combination reliability of the wear-resisting ring and the aluminum wheel disc, and adopts the high-low temperature resistant special rubber coating to prevent the electrochemical corrosion of the steel-aluminum combination interface. The specific steps of the method of the present invention are described below with reference to specific examples.
Example 1:
1) preparing an aluminum alloy wheel disc forging by isothermal die forging: the forging machine is a 12500T hydraulic isothermal die forging press, 7A85 aluminum alloy with specification of phi 380mm multiplied by 500mm after homogenization treatment is adopted as an aluminum alloy wheel disc material, the heating temperature of a die is 400 ℃, the initial forging temperature of isothermal die forging is 380 ℃, and the final forging temperature is 372 ℃; the size of the forging piece is phi 570mm multiplied by 160 mm; carrying out T74 solution aging treatment on the 7A85 aluminum alloy wheel disc, wherein the specific heat treatment system comprises heat preservation at 475 ℃ for 4h, water quenching at room temperature, multiplying by 10h at 120 ℃ and multiplying by 14h at 157 ℃;
2) roughly processing the wheel disc die forging and the wear-resistant steel ring: firstly, a numerical control lathe and a machining device are adoptedRoughly machining the die forging of the aluminum alloy wheel disc into a part with the outer contour dimension phi 540mm multiplied by 140mm by a tool center, wherein the inner diameter dimension D of the wheel disc in assembling contact with the wear-resistant ring0Phi 520 mm; secondly, machining the wear-resistant steel ring to the size required by assembly by adopting a numerical control lathe, wherein the outer diameter D of the wear-resistant steel ring assembled in contact with the aluminum wheel disc1Phi 520.3 mm;
3) and (3) radial interference assembly of the wear-resistant steel ring and the aluminum alloy wheel disc: firstly, heating the roughly processed aluminum alloy wheel disc parts to 90 ℃, preserving heat for 25min, and expanding the inner diameter size of the contact position of the aluminum wheel disc and the wear-resistant steel ring to phi 520.4mm after heating. Transferring the heated aluminum alloy wheel disc to a working platform for 6s at 4050mm2Spraying a layer of high-low temperature resistant rubber coating on the inner diameter surface of the aluminum wheel disc at a speed of/s, correspondingly assembling the wear-resistant steel ring and the hot aluminum wheel disc together within 3s, and pressing the plane of the wear-resistant ring by using a flat tool to prevent warping after the assembly is finished until the aluminum wheel disc is restored to the room temperature of 25 ℃.
4) The wear-resistant steel ring and the aluminum alloy wheel disc are axially fixed and locked for assembly: the method comprises the steps of machining pre-buried holes in 8 fixed shaft holes of an aluminum alloy wheel disc provided with wear-resistant rings by a tapping machine along the axial direction, fixedly screwing the aluminum wheel disc and the wear-resistant rings by a steel wire thread insert with the specification of M6, spraying a layer of high and low temperature resistant rubber coating in the aluminum alloy shaft holes before installing the steel wire thread insert, and welding countersunk head bolts of the steel wire thread insert and the wear-resistant rings together by a manual argon arc welding mode to play a role in preventing the rings from falling off, wherein the argon arc welding current is 68A, and the arc voltage is controlled to be 12V. And finally, performing finish machining on the wheel disc assembly parts to the specified size requirement in a numerical control machining center.
Example 2:
1) preparing an aluminum alloy wheel disc forging by isothermal die forging: the forging machine is a 12500T hydraulic isothermal die forging press, 7050 aluminum alloy with the specification of phi 380mm multiplied by 550mm after homogenization treatment is adopted as an aluminum alloy wheel disc material, the heating temperature of a die is 400 ℃, the initial forging temperature of isothermal die forging is 400 ℃, and the final forging temperature is 380 ℃; the size of the forging is phi 590mm multiplied by 150 mm; carrying out T74 solution aging treatment on the 7050 aluminum alloy wheel disc, wherein the specific heat treatment system comprises heat preservation at 475 ℃ for 6h, water quenching at room temperature, multiplying by 10h at 120 ℃ and multiplying by 14h at 157 ℃;
2) roughly processing the wheel disc die forging and the wear-resistant steel ring: firstly, roughly machining an aluminum alloy wheel disc die forging into a part with the outer contour dimension phi 580mm multiplied by 140mm by adopting a numerical control lathe and a machining center, wherein the inner diameter dimension D of the wheel disc in assembly contact with the wear-resistant ring0Phi 580 mm; secondly, machining the wear-resistant steel ring to the size required by assembly by adopting a numerical control lathe, wherein the outer diameter D of the wear-resistant steel ring assembled in contact with the aluminum wheel disc1Phi 580.2 mm;
3) and (3) radial interference assembly of the wear-resistant steel ring and the aluminum alloy wheel disc: firstly, the wear-resistant steel ring is placed in a low-temperature liquid nitrogen environment to be cooled and shrunk to phi 579.2 mm. Transfer the aluminum alloy wheel to the work platform at 4500mm in 8s2Spraying a layer of high-low temperature resistant rubber coating on the inner diameter surface of the aluminum wheel disc at a speed of/s, correspondingly assembling the low-temperature state wear-resistant steel ring and the aluminum alloy wheel disc together within 4s, and pressing the plane of the wear-resistant ring by using a flat tool to prevent warping after the assembly is finished until the aluminum alloy wheel disc is restored to the room temperature of 20 ℃.
4) The wear-resistant steel ring and the aluminum alloy wheel disc are axially fixed and locked for assembly: the method comprises the steps of machining pre-buried holes in 8 fixed shaft holes of an aluminum alloy wheel disc provided with wear-resistant rings by a tapping machine along the axial direction, fixedly screwing the aluminum wheel disc and the wear-resistant rings by a steel wire thread insert with the specification of M8, spraying a layer of high and low temperature resistant rubber coating in the aluminum alloy shaft holes before installing the steel wire thread insert, and welding countersunk head bolts of the steel wire thread insert and the wear-resistant rings together by a manual argon arc welding mode to play a role in preventing the rings from falling off, wherein the argon arc welding current is 68A, and the arc voltage is controlled to be 12V. And finally, performing finish machining on the wheel disc assembly parts to the specified size requirement in a numerical control machining center.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (9)
1. An assembly method of an aluminum-steel-rubber composite structure wheel disc assembly is characterized in that: the assembling method adopts a radial interference assembling mode to assemble and combine the aluminum wheel disc and the wear-resistant steel ring, adopts a steel wire thread insert assembling and stop bolt method to reinforce the axial combination of the wear-resistant steel ring and the aluminum wheel disc, and adopts the method of smearing a high-low temperature resistant rubber coating on the combination interface of the wear-resistant steel ring and the aluminum wheel disc.
2. The method of assembling an aluminum-steel-rubber composite construction wheel disc assembly of claim 1, wherein: the assembling method comprises the following steps:
step one, roughly processing a wheel disc die forging and a wear-resistant steel ring:
carrying out rough machining on the aluminum alloy wheel disc die forging and the wear-resistant steel ring so as to meet the interference assembly size: inner diameter D of wheel disc and wear-resisting ring in assembling contact0Wear-resisting steel ring external diameter D assembled with aluminum wheel disc in contact mode1Satisfies the following conditions: d1＝D0+(0.1～0.6)mm；
Step two, radial interference fit of the wear-resistant steel ring and the aluminum alloy wheel disc:
the interference adopts the scheme of 'aluminum clad steel', the aluminum alloy wheel disc is transferred to a working platform, and the inner diameter D of the aluminum wheel disc is within 10s0Spraying a layer of high and low temperature resistant rubber coating on the surface, correspondingly assembling the wear-resistant steel ring and the hot aluminum alloy wheel disc together, completing the assembling process within 5s, and simultaneously pressing the plane of the wear-resistant ring to prevent warping until the aluminum alloy wheel disc is restored to the room temperature;
step three, axially fixing and stopping the wear-resistant steel ring and the aluminum alloy wheel disc for assembly:
the method comprises the steps of machining a pre-buried hole in the axial direction in the position of a fixed shaft hole of an aluminum alloy wheel disc with a wear-resistant ring, fixedly screwing the aluminum wheel disc and the wear-resistant ring through a steel wire thread insert, spraying a layer of high and low temperature resistant rubber coating in the aluminum alloy shaft hole before installing the steel wire thread insert, and finally welding a bolt of the steel wire thread insert and the wear-resistant ring together through a spot welding mode.
3. The method of assembling an aluminum-steel-rubber composite construction wheel disc assembly of claim 2, wherein: the specific scheme of the aluminum-clad steel scheme is as follows:
heating the roughly processed aluminum alloy wheel disc parts to 90-100 ℃, preserving heat for 20-30 min, and controlling the inner diameter D of the contact position of the aluminum wheel disc and the wear-resistant steel ring0Expanded to be larger than the outer diameter D of the wear-resistant steel ring1。
4. The method of assembling an aluminum-steel-rubber composite construction wheel disc assembly of claim 2, wherein: the specific scheme of the aluminum-clad steel scheme is as follows: placing the wear-resistant steel ring in a liquid nitrogen incubator at-120 ℃ to-130 ℃ for heat preservation for 8min to 10 min; controlling the outer diameter D of the wear-resistant steel ring1Smaller than the inner diameter D of the aluminum wheel disc at the contact position of the aluminum wheel disc and the wear-resistant steel ring0。
5. The method of assembling an aluminum-steel-rubber composite construction wheel disc assembly of claim 2, wherein: step two, the spraying speed of the rubber coating is 3000mm2/s～50000mm2/s。
6. The method of assembling an aluminum-steel-rubber composite construction wheel disc assembly of claim 2, wherein: the third step of spot welding is manual argon arc welding, and the specific parameters are as follows: the argon arc welding current is 60-80A, and the arc voltage is controlled to be 8-20V.
7. The method of assembling an aluminum-steel-rubber composite construction wheel disc assembly of claim 2, wherein: the aluminum alloy wheel disc material in the assembly method is 7XXX aluminum alloy.
8. The method of assembling an aluminum-steel-rubber composite construction wheel disc assembly of claim 7, wherein: the 7XXX aluminum alloys are prepared using isothermal mold sections.
9. The method of assembling an aluminum-steel-rubber composite construction wheel disc assembly of claim 8, wherein: the preparation method of the isothermal mold section comprises the following steps:
preparing an aluminum alloy wheel disc forging by isothermal die forging: the forging machine is an isothermal die forging press with the temperature of more than 10000T, the heating temperature of a die is 350-400 ℃, the initial forging temperature of isothermal die forging is 380-420 ℃, and the final forging temperature is more than or equal to 350 ℃; and carrying out solution aging treatment on the wheel disc.
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| CN202010727545.8A CN111975347B (en) | 2020-07-24 | 2020-07-24 | Assembling method of aluminum-steel-rubber composite structure wheel disc assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113427213A (en) * | 2021-06-29 | 2021-09-24 | 北京航空航天大学 | Manufacturing and assembling method of steel-aluminum composite train wheel |
| CN117620594A (en) * | 2024-01-26 | 2024-03-01 | 展祥科技(惠州)有限公司 | Automatic equipment for realizing stable assembly of plastic parts and hardware by local heating |
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| CN117620594A (en) * | 2024-01-26 | 2024-03-01 | 展祥科技(惠州)有限公司 | Automatic equipment for realizing stable assembly of plastic parts and hardware by local heating |
| CN117620594B (en) * | 2024-01-26 | 2024-03-29 | 展祥科技(惠州)有限公司 | Automatic equipment for realizing stable assembly of plastic parts and hardware by local heating |
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