Process for manufacturing rim using t-shaped plate

Abstract

A process for manufacturing a rim using a T-shaped plate, comprising: using a T-shaped aluminum plate for blanking (S1) to manufacture an initial blank; forming a second flat surface by means of cylinder forming (S2), flattening (S3) and leveling (S4), and welding (S6); grinding (S7) and re-rounding (S8) a welded area to form a formed cylindrical blank, and performing end cutting (S9) on two end faces in the axial direction to form an end-cut cylindrical blank; performing flaring and expansion forming (S10) on the end-cut cylindrical blank to form an initial rim, thereby improving the precision during rim manufacturing; spinning (S11) the initial rim to form a first semi-finished rim (12); performing solution and aging treatment on the first semi-finished rim (12) to shorten the time for rim manufacturing, and performing secondary spinning to form a second semi-finished rim; and then machining (S13) to form a finished rim, and inspecting (S14) dimension parameters of the finished rim. The process for manufacturing a rim using a T-shaped plate can improve the precision of rim manufacturing, shorten the time for rim manufacturing, improve the yield, and save costs.

Description

A process for making wheel rims using T-shaped sheet metal Technical Field

[0001] This invention belongs to the field of wheel processing, specifically relating to a process for manufacturing wheel rims using T-shaped sheet metal. Background Technology

[0002] Ordinary sheet metal, after being spun into shape using existing processes, cannot be used to process connecting discs or welding bosses. For example, if a wheel rim is spun into shape using ordinary sheet metal, then cut open and welded with an aluminum ring in the middle, the connecting disc or welding boss can be processed using the aluminum ring material. This involves many steps: after the wheel rim is spun into shape, it needs to be cut open, processed to form a composite joint, processed to form an aluminum ring, and then composited and welded to the aluminum ring, resulting in a longer production cycle and increased production costs; material costs also increase, as cutting, processing the aluminum ring, composited, and welded to the wheel rim after spun results in excess material, increasing material costs; the product undergoes two composite and welding processes, increasing the cumulative error of the product and making it difficult to guarantee the precision after processing; the product is welded twice, reducing its strength and increasing the risk of air leakage or cracking during subsequent use.

[0003] Therefore, designing a process for manufacturing wheel rims using T-shaped sheet metal, which can improve the precision of wheel rim manufacturing, shorten the manufacturing time, increase the yield, and save costs, is an urgent problem to be solved. Summary of the Invention

[0004] Based on this, the present invention aims to overcome the shortcomings of the prior art and provide a process for manufacturing wheel rims using T-shaped sheet metal. The process involves using T-shaped aluminum sheets to create an initial blank; then rolling, flattening, and flushing to form a second flat surface; welding the second flat surface; grinding and rounding the weld joint to form a shaped cylindrical material; cutting off both ends of the shaped cylindrical material along the axial direction to form end-cut cylindrical material; flaring and expanding the end-cut cylindrical material in a trumpet shape to form an initial wheel rim, improving the precision of the wheel rim manufacturing process; spinning the initial wheel rim to form a first semi-finished wheel rim; subjecting the first semi-finished wheel rim to solution aging treatment to shorten the wheel rim manufacturing time, and then subjecting it to a second spinning treatment to form a second semi-finished wheel rim; finally, machining the second semi-finished wheel rim to form a finished wheel rim, and inspecting its dimensional parameters. This process improves the precision of wheel rim manufacturing, shortens the manufacturing time, increases the yield rate, and saves costs.

[0005] The first technical solution provided by this invention:

[0006] A process for manufacturing wheel rims using T-shaped sheet metal includes:

[0007] Cutting: The T-shaped aluminum sheet is cut according to the preset size to form the initial blank;

[0008] Rolling involves rolling the initial blank inward into a cylindrical shape to form an initial cylindrical processed material, with both ends of the initial cylindrical processed material joined together and the protruding part of the initial blank located on the inner circle of the initial cylindrical processed material.

[0009] Flattening: Flatten the two ends of the initial cylindrical material that are joined together to form the first flat surface;

[0010] Flush: The first flat surface is flushed to form the second flat surface, and the gap in the middle of the second flat surface is ≤0.3mm;

[0011] Cleaning: Clean the second flat surface to remove dirt;

[0012] Direct welding involves using a direct welding machine to weld the cleaned second flat surface to form a welded cylinder.

[0013] Grinding: Grinding the weld joints of the welded cylinder material;

[0014] Rounding involves rounding the polished welded cylindrical material to form a shaped cylindrical material.

[0015] End cutting involves removing the two ends of the formed cylindrical material along the axial direction to form an end-cut cylindrical material.

[0016] Flaring and expanding involves expanding and deforming the end-cut cylindrical material in a trumpet shape to form the initial rim.

[0017] Spinning: The initial rim is spun into shape to form the first semi-finished rim.

[0018] Heat treatment involves solution aging of the first semi-finished wheel rim, followed by a second spinning process to form the second semi-finished wheel rim.

[0019] Machining: The second semi-finished wheel rim is machined to form the finished wheel rim;

[0020] Inspection involves checking the dimensional parameters of the finished wheel rim.

[0021] Furthermore, the flaring and expanding step includes:

[0022] Given the initial diameter D0 of the cylindrical material cut at the measuring end and the length L of the cylindrical material cut at the measuring end, the theoretical initial diameter D of the rim is calculated using the following formula. 理 D 理 =D0+k×ΔP×L, where k represents a material-related coefficient and ΔP represents the change in applied pressure;

[0023] Measure the actual diameter D of the initial rim 实 Calculate the actual diameter D of the initial rim. 实 Theoretical diameter D of the initial rim 理 The accuracy error q,

[0024] Determine if the precision error q is less than 0.1%; if the precision error q is less than or equal to 0.1%, output the first precision signal; if the precision error q is greater than 0.1%, output the second precision signal.

[0025] Furthermore, the flaring and expanding step includes:

[0026] Measure the force F applied to the end-cut cylindrical material, measure the force-bearing area A of the end-cut cylindrical material, and calculate the change in applied pressure ΔP according to the formula.

[0027] Upon receiving the first precision signal, the actual diameter D of the initial rim is determined. 实 Correct, and output a stable signal to keep the force F applied to the end-cut cylindrical material stable; receive the second accuracy signal, and then determine the actual diameter D of the initial rim. 实 If there is an error, an adjustment force signal will be output to adjust the force F applied to the end-cut cylindrical material.

[0028] Furthermore, the flaring and expanding step also includes:

[0029] Measure the initial rim flare angle θ1, compare it with the preset initial rim flare angle θ2, and calculate the angular deviation δ between the initial rim flare angle θ1 and the preset initial rim flare angle θ2.

[0030] Determine if the angle deviation δ is less than 0.1%; if the angle deviation δ is less than or equal to 0.1%, output the first deviation signal; if the angle deviation δ is greater than 0.1%, output the second deviation signal.

[0031] Furthermore, the flaring and expanding step includes:

[0032] Upon receiving the first deviation signal, it is determined that the initial flaring angle θ1 of the wheel rim is correct, and a pass command is sent to allow the spinning step to proceed; upon receiving the second deviation signal, it is determined that the initial flaring angle θ1 of the wheel rim is incorrect, and a pause command is sent to adjust the initial flaring angle θ1 of the wheel rim.

[0033] Based on the pause command, determine whether the initial rim flare angle θ1 is too large or too small; if the initial rim flare angle θ1 is too large, then perform positive flare correction on the initial rim; if the initial rim flare angle θ1 is too small, then perform reverse flare correction on the initial rim.

[0034] Furthermore, the detection steps include:

[0035] Measure the outer diameter R1 of the finished wheel rim, measure the inner diameter R2 of the inner ring mounting area of ​​the finished wheel rim, and calculate the width W0 of the finished wheel rim, where W0 = R1 - R2; compare whether the width W0 of the finished wheel rim is within the preset finished wheel rim width range [W min W max ];

[0036] If the width W0 of the finished wheel rim is within the preset finished wheel rim width range [W min W max If the width W0 of the finished wheel rim is less than the preset minimum width W0 of the finished wheel rim, then the first width signal is output; if the width W0 of the finished wheel rim is less than the preset minimum width W0 of the finished wheel rim, then the first width signal is output. min If the width W0 of the finished wheel rim is greater than the preset maximum width W of the finished wheel rim, then the second width signal will be output; max Then the third width signal will be output.

[0037] Furthermore, the detection steps include:

[0038] Upon receiving the first width signal, it is determined that the width W0 of the finished wheel rim is correct, and a width detection pass command is sent.

[0039] Upon receiving the second width signal, it is determined that the width W0 of the finished wheel rim is too small, and a first machining parameter adjustment command is sent to adjust the parameters of the machining steps.

[0040] Upon receiving the third width signal, it is determined that the width W0 of the finished wheel rim is too large, and a second machining parameter adjustment command is sent to adjust the parameters of the machining steps.

[0041] Furthermore, the detection steps include:

[0042] Measure the radial runout J1 of the finished wheel rim, measure the axial runout J2 of the finished wheel rim, and calculate the total runout S of the finished wheel rim.

[0043] Compare whether the overall runout S of the finished wheel rim is within the preset overall runout range of the finished wheel rim [0, S]. max ];

[0044] If the total runout S of the finished wheel rim is within the preset range of total runout of the finished wheel rim [0, S], then... max If the total runout S of the finished wheel rim is greater than the preset maximum value S of the total runout S of the finished wheel rim, then the first comprehensive runout signal will be output; if the total runout S of the finished wheel rim is greater than the preset maximum value S of the total runout S of the finished wheel rim, then the first comprehensive runout signal will be output. max Then the second comprehensive jitter signal will be output.

[0045] Furthermore, the detection steps include:

[0046] Upon receiving the first comprehensive runout signal, the comprehensive runout S of the finished wheel rim is determined to be correct, and a comprehensive runout detection pass command is sent.

[0047] Upon receiving the second comprehensive runout signal, it is determined that the comprehensive runout S of the finished wheel rim is too large, and a correction command is sent to compress and / or stretch the finished wheel rim to adjust the comprehensive runout S of the finished wheel rim to be within the preset comprehensive runout range [0, S]. max ]between.

[0048] Furthermore, the detection steps include:

[0049] Measure the surface roughness Ra1 of the finished wheel rim; compare it with the surface roughness Ra2 of the preset finished wheel rim; calculate the surface roughness ratio γ of the finished wheel rim surface roughness Ra1 to the preset surface roughness Ra2, where...

[0050] Determine whether the roughness ratio γ is less than or equal to the preset roughness ratio γ0;

[0051] If the roughness ratio γ is less than or equal to the preset roughness ratio γ0, then the first roughness signal is output; if the roughness ratio γ is greater than the preset roughness ratio γ0, then the second roughness signal is output.

[0052] Upon receiving the first roughness signal, it is determined that the roughness Ra1 of the finished wheel rim is correct, and a roughness detection pass command is sent; upon receiving the second roughness signal, it is determined that the roughness Ra1 of the finished wheel rim is too large, and a polishing command is sent to polish the finished wheel rim to adjust the roughness Ra1 of the finished wheel rim to be less than or equal to the preset roughness ratio γ0.

[0053] The beneficial effects of this invention are as follows:

[0054] The process involves using T-shaped aluminum plates to create the initial blank; then rolling, flattening, and flushing to form a second flat surface; welding the second flat surface; grinding and re-rounding the weld joint to form a shaped cylindrical material; cutting off both ends of the shaped cylindrical material along the axial direction to form end-cut cylindrical material; flaring and expanding the end-cut cylindrical material into a trumpet shape to form the initial rim, improving the precision of the rim manufacturing process; spinning the initial rim to form the first semi-finished rim; solution-aging the first semi-finished rim to shorten the rim manufacturing time, and then performing a second spinning process to form the second semi-finished rim; finally, machining the second semi-finished rim to form the finished rim, and inspecting its dimensional parameters. This process improves the precision of rim manufacturing, shortens the manufacturing time, increases the yield, and saves costs. Attached Figure Description

[0055] Figure 1 is a flowchart illustrating the process of manufacturing wheel rims using T-shaped sheet metal according to an embodiment of the present invention;

[0056] Figure 2 is a schematic diagram of the initial blank structure in the process of making wheel rims using T-shaped plates according to an embodiment of the present invention;

[0057] Figure 3 is a schematic diagram of the initial cylindrical material structure in the process of making wheel rims using T-shaped plates according to an embodiment of the present invention;

[0058] Figure 4 is a schematic diagram of the structure after the initial cylindrical material is flattened in the process of making wheel rims using T-shaped plates according to an embodiment of the present invention.

[0059] Figure 5 is a schematic diagram of the welded cylinder structure in the process of making wheel rims using T-shaped plates according to an embodiment of the present invention;

[0060] Figure 6 is a schematic diagram of the flaring and expanding state of the process of making wheel rims using T-shaped plates according to an embodiment of the present invention;

[0061] Figure 7 is a schematic diagram of the spinning process of making wheel rims using T-shaped sheet metal according to an embodiment of the present invention.

[0062] Explanation of reference numerals in the attached drawings: S1, cutting; S2, rolling; S3, flattening; S4, flushing; S5, cleaning; S6, straight welding; S7, grinding; S8, rounding back; S9, end cutting; S10, flaring; S11, spinning; S12, heat treatment; S13, machining; S14, inspection; 1, protrusion; 2, first flat surface; 11, initial rim; 12, first semi-finished rim. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0064] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0065] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0066] In the description of the embodiments of this application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly placed when the product of this application is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0067] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0069] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0070] Referring to Figures 1 to 7, this application provides a process for manufacturing wheel rims using T-shaped sheet metal. The process involves: using a T-shaped aluminum sheet to create an initial blank; rolling, flattening, and flushing to form a second flat surface; welding the second flat surface; grinding and rounding the weld joint to form a shaped cylindrical material; cutting off both ends of the shaped cylindrical material along the axial direction to form an end-cut cylindrical material; flaring and expanding the end-cut cylindrical material in a trumpet shape to form an initial wheel rim 11, improving the precision of the wheel rim manufacturing process; spinning the initial wheel rim 11 to form a first semi-finished wheel rim 12; subjecting the first semi-finished wheel rim 12 to solution aging treatment to shorten the wheel rim manufacturing time, and then performing a second spinning treatment to form a second semi-finished wheel rim; machining the second semi-finished wheel rim to form a finished wheel rim, and inspecting its dimensional parameters. This process improves the precision of wheel rim manufacturing, shortens the manufacturing time, increases the yield, and saves costs.

[0071] This solution provides a process for manufacturing wheel rims using T-shaped sheet metal. It includes the following steps:

[0072] S1: Cutting: Cutting the T-shaped aluminum sheet according to the preset size to form the initial blank.

[0073] It is known that the T-shaped aluminum plate has a protrusion 1, and the initial blank is rectangular in shape. At the same time, aluminum plates with different material properties are selected according to the requirements of the wheel rim.

[0074] S2: Rolling: The initial blank is rolled inward into a cylindrical shape to form an initial cylindrical processed material, and the two ends of the initial cylindrical processed material are closed, and the protrusion 1 of the initial blank is located in the inner circle of the initial cylindrical processed material.

[0075] It should be noted that the material must not be twisted during the rolling process, and the integrity and smoothness of the initial cylindrical material must be maintained.

[0076] S3: Flattening, flattening the two ends of the initial cylindrical material to form the first flat surface 2.

[0077] It should be noted that the degree of flattening, which is the area of ​​the first flat surface 2, is not limited here and can be freely adjusted according to the actual situation.

[0078] S4: Flush, the first flat surface 2 is flushed to form the second flat surface, and the gap in the middle of the second flat surface is ≤0.3mm.

[0079] It should be noted that a leveling machine is used to level the first flat surface 2 to form the second flat surface.

[0080] S5: Cleaning. Clean the second flat surface to remove dirt.

[0081] Understandably, cleaning the second flat surface is mainly to remove dirt, including oil and impurities, to ensure the cleanliness of the second flat surface and improve the stability of the welding.

[0082] S6: Direct welding, using a direct welding machine to weld the cleaned second flat surface to form a welded cylinder.

[0083] It should be noted that the welded cylindrical material formed by welding becomes a truly integrated cylindrical material.

[0084] S7: Grinding, grinding the weld joints of the welded cylinder material.

[0085] It should be noted that the burrs and other debris generated during the welding process should be ground down to reduce the risk of crack propagation.

[0086] S8: Recirculation, which involves recirculating the polished welded cylindrical material to form a shaped cylindrical material.

[0087] It should be noted that the polished welded cylinder material is rounded back to its original shape to ensure the smoothness of the formed cylinder material.

[0088] S9: End cutting, which involves cutting off both ends of the formed cylindrical material along the axial direction to form an end-cut cylindrical material.

[0089] It should be noted that the shaped cylindrical material is cut to a suitable size by end cutting to facilitate subsequent processes.

[0090] S10: Flaring and expanding, the end-cut cylindrical material is expanded and deformed in a trumpet shape to form the initial rim 11.

[0091] It should be noted that this step involves two flaring and expansion processes to ensure that the initial rim 11 is expanded and deformed in place.

[0092] This step specifically includes:

[0093] Given the initial diameter D0 of the cylindrical material cut at the measuring end and the length L of the cylindrical material cut at the measuring end, the theoretical diameter D of the initial rim 11 is calculated using the following formula. 理 D 理 =D0+k×ΔP×L, where k represents a material-related coefficient and ΔP represents the change in applied pressure;

[0094] Measure the actual diameter D of the initial rim 11 实 Calculate the actual diameter D of the initial rim 11. 实 The theoretical diameter D of the initial rim 11 理 The accuracy error q, Determine if the precision error q is less than 0.1%; if the precision error q is less than or equal to 0.1%, output the first precision signal; if the precision error q is greater than 0.1%, output the second precision signal.

[0095] Measure the force F applied to the end-cut cylindrical material, measure the force-bearing area A of the end-cut cylindrical material, and calculate the change in applied pressure ΔP according to the formula.

[0096] Upon receiving the first precision signal, the actual diameter D of the initial rim 11 is determined. 实 Correct, and output a stable signal to keep the force F applied to the end-cut cylindrical material stable; receive the second accuracy signal, and then determine the actual diameter D of the initial rim 11. 实 If there is an error, an adjustment force signal will be output to adjust the force F applied to the end-cut cylindrical material.

[0097] This step also includes:

[0098] Measure the flare angle θ1 of the initial rim 11, compare it with the preset flare angle θ2 of the initial rim 11, and calculate the angular deviation δ between the flare angle θ1 and the preset flare angle θ2 of the initial rim 11.

[0099] Determine if the angle deviation δ is less than 0.1%; if the angle deviation δ is less than or equal to 0.1%, output the first deviation signal; if the angle deviation δ is greater than 0.1%, output the second deviation signal.

[0100] Upon receiving the first deviation signal, it is determined that the flaring angle θ1 of the initial rim 11 is correct, and a pass command is sent to allow the spinning step to proceed; upon receiving the second deviation signal, it is determined that the flaring angle θ1 of the initial rim 11 is incorrect, and a pause command is sent to adjust the flaring angle θ1 of the initial rim 11.

[0101] Based on the pause command, determine whether the flaring angle θ1 of the initial rim 11 is too large or too small; if the flaring angle θ1 of the initial rim 11 is too large, then perform positive flaring correction on the initial rim 11; if the flaring angle θ1 of the initial rim 11 is too small, then perform reverse flaring correction on the initial rim 11.

[0102] S11: Spinning, spinning the initial rim 11 to form the first semi-finished rim 12.

[0103] It should be noted that a spinning machine and a special spinning die are used to spin-form the end of the initial rim 11.

[0104] S12: Heat treatment, the first semi-finished wheel rim 12 is subjected to solution aging treatment and then subjected to secondary spinning treatment to form the second semi-finished wheel rim.

[0105] It should be noted that the solution treatment is first performed in a heat treatment furnace, with the solution treatment time and temperature controlled; then a second spinning treatment is performed to repair the deformation caused by the heat treatment; finally, the aging treatment is performed in a heat treatment furnace, with the aging time and temperature controlled.

[0106] S13: Machining, machining the second semi-finished wheel rim to form the finished wheel rim.

[0107] It should be noted that the second semi-finished wheel rim is machined using processes such as turning, fitting, planing, milling, and grinding to form the finished wheel rim.

[0108] S14: Inspection, inspecting the dimensional parameters of the finished wheel rim.

[0109] This step specifically includes:

[0110] Measure the outer diameter R1 of the finished wheel rim, measure the inner diameter R2 of the inner ring mounting area of ​​the finished wheel rim, and calculate the width W0 of the finished wheel rim, where W0 = R1 - R2; compare whether the width W0 of the finished wheel rim is within the preset finished wheel rim width range [W min W max ];

[0111] If the width W0 of the finished wheel rim is within the preset finished wheel rim width range [W min W max If the width W0 of the finished wheel rim is less than the preset minimum width W0 of the finished wheel rim, then the first width signal is output; if the width W0 of the finished wheel rim is less than the preset minimum width W0 of the finished wheel rim, then the first width signal is output. min If the width W0 of the finished wheel rim is greater than the preset maximum width W of the finished wheel rim, then the second width signal will be output; max Then the third width signal will be output.

[0112] Upon receiving the first width signal, the width W0 of the finished wheel rim is determined to be correct, and a width detection pass command is sent. Upon receiving the second width signal, the width W0 of the finished wheel rim is determined to be too small, and a first machining parameter adjustment command is sent to adjust the parameters of the machining step. Upon receiving the third width signal, the width W0 of the finished wheel rim is determined to be too large, and a second machining parameter adjustment command is sent to adjust the parameters of the machining step.

[0113] This step also includes:

[0114] Measure the radial runout J1 of the finished wheel rim, measure the axial runout J2 of the finished wheel rim, and calculate the total runout S of the finished wheel rim. Compare whether the overall runout S of the finished wheel rim is within the preset overall runout range of the finished wheel rim [0, S]. max ];

[0115] If the total runout S of the finished wheel rim is within the preset range of total runout of the finished wheel rim [0, S], then... max If the total runout S of the finished wheel rim is greater than the preset maximum value S of the total runout S of the finished wheel rim, then the first comprehensive runout signal will be output; if the total runout S of the finished wheel rim is greater than the preset maximum value S of the total runout S of the finished wheel rim, then the first comprehensive runout signal will be output. max Then the second comprehensive jitter signal will be output.

[0116] Upon receiving the first comprehensive runout signal, the comprehensive runout S of the finished wheel rim is determined to be correct, and a comprehensive runout detection pass command is sent; upon receiving the second comprehensive runout signal, the comprehensive runout S of the finished wheel rim is determined to be too large, and a correction command is sent to compress and / or stretch the finished wheel rim to adjust the comprehensive runout S of the finished wheel rim to be within the preset comprehensive runout range [0, S]. max ]between.

[0117] This step also includes:

[0118] Measure the surface roughness Ra1 of the finished wheel rim; compare it with the surface roughness Ra2 of the preset finished wheel rim; calculate the surface roughness ratio γ of the finished wheel rim surface roughness Ra1 to the preset surface roughness Ra2, where... Determine whether the roughness ratio γ is less than or equal to the preset roughness ratio γ0; if the roughness ratio γ is less than or equal to the preset roughness ratio γ0, output the first roughness signal; if the roughness ratio γ is greater than the preset roughness ratio γ0, output the second roughness signal.

[0119] Upon receiving the first roughness signal, it is determined that the roughness Ra1 of the finished wheel rim is correct, and a roughness detection pass command is sent; upon receiving the second roughness signal, it is determined that the roughness Ra1 of the finished wheel rim is too large, and a polishing command is sent to polish the finished wheel rim to adjust the roughness Ra1 of the finished wheel rim to be less than or equal to the preset roughness ratio γ0.

[0120] The following describes the principle of the process for manufacturing wheel rims using T-shaped sheet metal, as provided in this embodiment:

[0121] Cutting: The T-shaped aluminum sheet is cut to a preset size to form an initial blank; Rolling: The initial blank is rolled inward into a cylindrical shape to form an initial cylindrical processed material, with both ends of the initial cylindrical processed material joined together, and the protrusion 1 of the initial blank located on the inner circle of the initial cylindrical processed material; Flattening: The joined ends of the initial cylindrical processed material are flattened to form a first flat surface 2; Flanging: The first flat surface 2 is flushed to form a second flat surface, with a gap in the middle of the second flat surface ≤0.3mm; Cleaning: The second flat surface is cleaned to remove dirt; Direct welding: The cleaned second flat surface is welded using a direct welding machine to form a welded cylinder; Grinding: ... The welding joints of the welded cylindrical material are ground; the ground cylindrical material is rounded back to form a shaped cylindrical material; the shaped cylindrical material is cut off at both ends along the axial direction to form an end-cut cylindrical material; the end-cut cylindrical material is flared and expanded to form an initial rim 11; the initial rim 11 is spun to form a first semi-finished rim 12; the first semi-finished rim 12 is heat-treated by solution aging and then spun a second time to form a second semi-finished rim; the second semi-finished rim is machined to form a finished rim; and the dimensional parameters of the finished rim are inspected.

[0122] In summary, the main effective effects of the embodiments provided by the present invention are as follows:

[0123] The process involves using T-shaped aluminum plates to create the initial blank; then rolling, flattening, and flushing to form a second flat surface; welding the second flat surface; grinding and re-rounding the weld joint to form a shaped cylindrical material; cutting off both ends of the shaped cylindrical material along the axial direction to form end-cut cylindrical material; flaring and expanding the end-cut cylindrical material into a trumpet shape to form the initial rim, improving the precision of the rim manufacturing process; spinning the initial rim to form the first semi-finished rim; solution-aging the first semi-finished rim to shorten the rim manufacturing time, and then performing a second spinning process to form the second semi-finished rim; finally, machining the second semi-finished rim to form the finished rim, and inspecting its dimensional parameters. This process improves the precision of rim manufacturing, shortens the manufacturing time, increases the yield, and saves costs.

[0124] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0125] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A process for manufacturing wheel rims using T-shaped sheet metal, characterized in that, include: Cutting: The T-shaped aluminum sheet is cut according to the preset size to form the initial blank; Rolling: The initial blank is rolled inward into a cylindrical shape to form an initial cylindrical processed material, and the two ends of the initial cylindrical processed material are closed, and the protrusion of the initial blank is located in the inner circle of the initial cylindrical processed material; Flattening: The two ends of the initial cylindrical processed material are flattened to form a first flat surface; The first flat surface is flushed to form a second flat surface, and the gap in the middle of the second flat surface is ≤0.3mm. Cleaning: Clean the second flat surface to remove dirt; Direct welding involves using a direct welding machine to weld the cleaned second flat surface to form a welded cylinder. Grinding: Grinding the weld joints of the welded cylinder material; The polished welded cylindrical material is then rounded to form a shaped cylindrical material. End cutting involves removing the two ends of the formed cylindrical material along the axial direction to form an end-cut cylindrical material. The flaring and expanding process involves expanding and deforming the end-cut cylindrical material in a trumpet shape to form an initial rim. Spinning: The initial rim is spin-formed to create a first semi-finished rim. Heat treatment is performed on the first semi-finished wheel rim, which undergoes solution aging treatment and secondary spinning treatment to form the second semi-finished wheel rim. Machining: The second semi-finished wheel rim is machined to form the finished wheel rim; The dimensional parameters of the finished wheel rim are inspected.

2. The process for manufacturing wheel rims using T-shaped sheet metal as described in claim 1, characterized in that, The flaring and expanding step includes: Measure the initial diameter D0 of the end-cut cylindrical material, measure the length L of the end-cut cylindrical material, and calculate the theoretical diameter D of the initial rim using the following formula. 理 D 理 =D0+k×ΔP×L, where k represents a material-related coefficient and ΔP represents the change in applied pressure; Measure the actual diameter D of the initial rim. 实 Calculate the actual diameter D of the initial rim. 实 With respect to the theoretical diameter D of the initial rim 理 The accuracy error q, Determine whether the accuracy error q is less than 0.1%; if the accuracy error q is less than or equal to 0.1%, output a first accuracy signal; if the accuracy error q is greater than 0.1%, output a second accuracy signal.

3. The process for manufacturing wheel rims using T-shaped sheet metal as described in claim 2, characterized in that, The flaring and expanding step includes: Measure the force F applied to the end-cut cylindrical material, measure the force-bearing area A of the end-cut cylindrical material, and calculate the applied pressure change ΔP according to the formula. Upon receiving the first precision signal, the actual diameter D of the initial rim is determined. 实 Correct, and output a stable signal to keep the force F applied to the end-cut cylindrical material stable; receive the second accuracy signal, then determine the actual diameter D of the initial rim. 实 If there is an error, an adjustment force signal will be output to adjust the force F applied to the end-cut cylindrical material.

4. The process for manufacturing wheel rims using T-shaped sheet metal as described in claim 1, characterized in that, The flaring and expanding step also includes: Measure the flare angle θ1 of the initial rim, compare it with the preset flare angle θ2 of the initial rim, and calculate the angular deviation δ between the flare angle θ1 and the preset flare angle θ2 of the initial rim. Determine whether the angle deviation δ is less than 0.1%; if the angle deviation δ is less than or equal to 0.1%, output a first deviation signal; if the angle deviation δ is greater than 0.1%, output a second deviation signal.

5. The process for manufacturing wheel rims using T-shaped sheet metal as described in claim 4, characterized in that, The flaring and expanding step includes: Upon receiving the first deviation signal, it is determined that the flaring angle θ1 of the initial rim is correct, and a pass command is sent to allow the spinning step to proceed; upon receiving the second deviation signal, it is determined that the flaring angle θ1 of the initial rim is incorrect, and a pause command is sent to adjust the flaring angle θ1 of the initial rim. Based on the pause command, determine whether the flaring angle θ1 of the initial rim is too large or too small; if the flaring angle θ1 of the initial rim is too large, then perform forward flaring correction on the initial rim; if the flaring angle θ1 of the initial rim is too small, then perform reverse flaring correction on the initial rim.

6. The process for manufacturing wheel rims using T-shaped sheet metal as described in claim 1, characterized in that, The detection steps include: Measure the outer diameter R1 of the finished wheel rim, measure the inner diameter R2 of the inner ring mounting part of the finished wheel rim, and calculate the width W0 of the finished wheel rim, where W0 = R1 - R2; compare whether the width W0 of the finished wheel rim is within the preset finished wheel rim width range [W]. min W max ]; If the width W0 of the finished wheel rim is within the preset finished wheel rim width range [W min W max If the width W0 of the finished wheel rim is less than the preset minimum width W0 of the finished wheel rim, then the first width signal is output; if the width W0 of the finished wheel rim is less than the preset minimum width W0 of the finished wheel rim, then the first width signal is output. min If the width W0 of the finished wheel rim is greater than the preset maximum width W of the finished wheel rim, then the second width signal is output; max Then the third width signal will be output.

7. The process for manufacturing wheel rims using T-shaped sheet metal as described in claim 6, characterized in that, The detection steps include: Upon receiving the first width signal, it is determined that the width W0 of the finished wheel rim is correct, and a width detection pass command is sent. Upon receiving the second width signal, it is determined that the width W0 of the finished wheel rim is too small, and a first machining parameter adjustment command is sent to adjust the parameters of the machining step. Upon receiving the third width signal, it is determined that the width W0 of the finished wheel rim is too large, and a second machining parameter adjustment command is sent to adjust the parameters of the machining step.

8. The process for manufacturing wheel rims using T-shaped sheet metal as described in claim 1, characterized in that, The detection steps include: The radial runout J1 of the finished wheel rim is measured, the axial runout J2 of the finished wheel rim is measured, and the total runout S of the finished wheel rim is calculated. Compare whether the overall runout S of the finished wheel rim is within the preset overall runout range of the finished wheel rim [0, S]. max ]; If the overall runout S of the finished wheel rim is within the preset overall runout range of the finished wheel rim [0, S], then... max If the total runout S of the finished wheel rim is greater than the maximum value S of the preset total runout S of the finished wheel rim, then the first comprehensive runout signal is output; if the total runout S of the finished wheel rim is greater than the maximum value S of the preset total runout S of the finished wheel rim, then the first comprehensive runout signal is output; max Then the second comprehensive jitter signal will be output.

9. The process for manufacturing wheel rims using T-shaped sheet metal as described in claim 8, characterized in that, The detection steps include: Upon receiving the first comprehensive runout signal, it is determined that the comprehensive runout S of the finished wheel rim is correct, and a comprehensive runout detection pass command is sent. Upon receiving the second comprehensive runout signal, it is determined that the comprehensive runout S of the finished wheel rim is too large, and a correction command is sent to compress and / or stretch the finished wheel rim to adjust the comprehensive runout S of the finished wheel rim to be within the preset comprehensive runout range [0, S]. max ]between.

10. The process for manufacturing wheel rims using T-shaped sheet metal as described in claim 1, characterized in that, The detection steps include: Measure the surface roughness Ra1 of the finished wheel rim; compare it with the surface roughness Ra2 of the preset finished wheel rim; calculate the roughness ratio γ of the finished wheel rim surface roughness Ra1 to the preset finished wheel rim surface roughness Ra2, where... Determine whether the roughness ratio γ is less than or equal to the preset roughness ratio γ0; If the roughness ratio γ is less than or equal to the preset roughness ratio γ0, a first roughness signal is output; if the roughness ratio γ is greater than the preset roughness ratio γ0, a second roughness signal is output. Upon receiving the first roughness signal, it is determined that the roughness Ra1 of the finished wheel rim is correct, and a roughness detection pass command is sent; upon receiving the second roughness signal, it is determined that the roughness Ra1 of the finished wheel rim is too large, and a polishing command is sent to polish the finished wheel rim to adjust the roughness Ra1 of the finished wheel rim to be less than or equal to the preset roughness ratio γ0.

Images