Steel-aluminum composite wheel and production device thereof

Abstract

The present application relates to the technical field of wheel production, and particularly relates to a steel-aluminum composite wheel and a production device thereof. The steel-aluminum composite wheel production device comprises a gantry frame composed of a base, a left stand column, a right stand column and a cross beam, the right stand column is provided with a lower die assembly, the cross beam is provided with an upper die assembly, the base is slidably provided with a feeding frame and a displacement driving mechanism for driving the feeding frame to slide left and right, the feeding frame comprises a "U"-shaped rack with openings downward and penetrating left and right, a plurality of rim supporting rods slidingly penetrating the rack and a lifting driving mechanism for driving the rim supporting rods to lift, and the left side of the upper end surface of the rack is provided with a clamping die for plug-in cooperation with the lower die assembly. The steel-aluminum composite wheel processing device can automatically transport or remove the rim, thereby reducing the labor intensity of workers, improving the production efficiency and production safety; the rim of the steel-aluminum composite wheel has a double-layer structure, the inner layer is an aluminum plate layer, the outer layer is a steel plate layer, and the spokes are made of aluminum rods, so that the wheel has light overall quality, high structural strength and long service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wheel production, in particular to a steel-aluminum composite wheel and a production device thereof. BACKGROUND

[0002] At present, the hardness of the aluminum alloy material in the aluminum alloy wheel is lower than that of the steel ring, and when in use, the aluminum alloy wheel will be seriously worn during the bearing process of the contact surface with the tire. Although the steel wheel avoids this phenomenon, the weight of the steel truck wheel used in the market is usually about 43 kg, and the lightest lightweight steel truck wheel in China weighs about 30 kg, which still has a large gap compared with the weight of the aluminum alloy wheel.

[0003] During the production of the wheel, the rim is first processed and formed by using a rim processing device, the spoke is processed and formed by using a spoke processing device, and then the rim and the spoke are connected together by welding. The rim of the aluminum alloy wheel is usually formed by forging and spinning, and the entire surface is completed by machining, which has long processing cost and cycle, low production efficiency and low material utilization rate; the rim of the steel wheel is usually formed by rolling by using a rolling device, which has high production efficiency and material utilization rate, but in the spoke production process, the spoke part of the steel wheel is processed by punching the steel plate circle material, and the material utilization rate of the product processing is only about 60%, so selecting appropriate materials and equipment to produce the rim and spoke of the wheel can effectively improve the structural strength, service life, production efficiency and material utilization rate of the wheel.

[0004] The patent with the application number CN200710053766.6 discloses a wheel rim rolling machine, which comprises a machine body, a lower rolling mechanism and an upper rolling mechanism. The machine body is in the form of a door and comprises a vertical column and a cross beam. The lower rolling mechanism comprises a lower driving roller connected with a lower hydraulic motor and a lower passive roller used for simultaneously pushing and clamping, and the two rollers are respectively installed at the lower part of the vertical column and the shaft ends thereof are opposite to each other. The upper rolling mechanism comprises an upper driving roller installed at both ends of a lifting support and having an axis line parallel to the axis line of the lower driving roller, a hydraulic motor connected with the upper driving roller, a lifting device, a lifting support and a lifting guide rail. The upper hydraulic motor is connected with the upper driving roller by a transmission member. The lifting device is fixed on the cross beam and connected with the lifting support through a lifting rod. The advantages of the machine are high strength of the machine body, driving power of the upper and lower driving rollers, large rolling force and small resistance. However, the device has the following problems: after the rim processing is completed, the worker needs to manually unload the rim from the lower die of the driving roller, which is labor-intensive, and the rim and the lower die after rolling and forming are high in temperature, so the worker is easy to be scalded when directly unloading the material from the lower die, which affects the production safety. SUMMARY

[0005] To solve the above-mentioned technical problems, the present invention provides a steel-aluminum composite wheel production device, including a gantry frame composed of a base, a left column, a right column, and a crossbeam. A lower mold assembly is provided on the right column, and an upper mold assembly is provided on the crossbeam. A feeding rack and a displacement drive mechanism for driving the feeding rack to slide left and right are slidably provided on the base. The feeding rack includes a U-shaped platform that runs through the left and right sides and opens downwards, multiple rim support rods that slide through the platform, and a lifting drive mechanism for driving the rim support rods to rise and fall. A clamping mold that inserts and cooperates with the lower mold assembly is provided on the left side of the upper end face of the platform.

[0006] Preferably, the lifting drive mechanism includes a slide plate connected to the displacement drive mechanism. The slide plate can slide left and right along the inner sidewall of the frame. A hinge plate is embedded on the upper end face of the slide plate. A push rod that can tilt left and right is hinged to the upper end face of the hinge plate. A pressure sensor is provided on the lower end face. The push rod is hinged to a wheel rim support rod. The frame is provided with a locking mechanism that can lock or unlock the slide plate. When the slide plate is locked, the push rod is in a vertical state.

[0007] Preferably, the upper surface of the base is provided with a sliding groove, the platform is disposed in the sliding groove, the displacement driving mechanism includes a lead screw rotatably disposed in the sliding groove, the base is provided with a third motor for driving the lead screw to rotate, and the left and right sides of the slide plate are respectively provided with upright plates, and the upright plates are provided with threaded holes that cooperate with the lead screw.

[0008] Preferably, the locking mechanism includes two limiting plates that abut against the left and right ends of the slide plate. The limiting plates are vertically slidably disposed on the inner side wall of the frame, and a first permanent magnet is provided at the bottom. A second permanent magnet that repels the first permanent magnet is provided in the roll forming area on the base. When the frame moves to the right to the roll forming area, the first permanent magnet on the right limiting plate faces the second permanent magnet, and the magnetic repulsion pushes the right limiting plate to move up and release the lock on the right end of the slide plate.

[0009] Preferably, the rim loading and unloading area on the base is provided with a third permanent magnet that repels the first permanent magnet. When the platform moves to the left to the rim loading and unloading area, the first permanent magnet on the left end limit plate is directly opposite the third permanent magnet. The magnetic repulsion force pushes the left end limit plate to move up and release the lock on the left end of the slide plate. The upper end face of the platform is provided with a forward-inclined unloading part, and the unloading part is provided with a storage hole for storing the rim support rod.

[0010] Preferably, when the platform enters the roll forming area, the right side wall of the platform abuts against the right side wall of the chute; when the platform enters the rim loading and unloading area, the left side wall of the platform abuts against the left side wall of the chute. The left and right sides of the platform are respectively provided with a fourth permanent magnet, and the left and right sides of the chute are respectively provided with a fifth permanent magnet that attracts the fourth permanent magnet.

[0011] Preferably, the gantry front end is provided with a discharging mechanism, the discharging mechanism comprises an inclined discharging table connected with a discharging part, the tail end of the discharging table is connected with a transfer table, the front end of the transfer table is provided with a front baffle, the left side is provided with a left baffle, and the right side is connected with a conveying roller way, the left side of the left baffle is provided with a cylinder, and the right side is provided with a push plate connected with the piston rod of the cylinder.

[0012] Preferably, the rim supporting rod is provided with a feeding mechanism above, the feeding mechanism comprises a horizontal plate arranged on the inner side wall of the left stand column, a rectangular feeding port capable of facing the rim supporting rod is arranged on the horizontal plate, mirror image guide plates are arranged on the left and right side walls of the feeding port, and the spacing between the two guide plates is consistent with the width of the rim.

[0013] Preferably, the front and rear sides of the guide plate are respectively connected with sliding blocks, the front and rear sides of the feeding port are respectively provided with sliding holes matched with the sliding blocks, the front side wall of the horizontal plate is rotatably provided with a bidirectional screw rod, two nut seats are symmetrically arranged on the bidirectional screw rod, the sliding block of one guide plate is connected with one nut seat, the horizontal plate is provided with a fourth motor for driving the bidirectional screw rod to rotate, and the inner side wall of the guide plate is provided with an elastic protrusion below.

[0014] The application provides a steel-aluminum composite vehicle wheel, a rim is produced by using the steel-aluminum composite vehicle wheel production device, and a spoke is produced by using aluminum bar hot forging and pressure forming, the rim is divided into a steel plate layer and an aluminum plate layer from outside to inside along a radial direction, and the rim and the spoke are welded by a friction welding method.

[0015] Compared with the prior art, the application has the following beneficial technical effects:

[0016] 1. The steel-aluminum composite vehicle wheel production device can efficiently and safely roll and form the rim, the feeding frame and the displacement driving mechanism are matched, the rim to be processed can be automatically fed to the lower die assembly and the processed rim can be automatically removed from the lower die assembly, the labor intensity of workers is reduced, and the production efficiency and safety are improved.

[0017] 2. The displacement driving mechanism can drive the feeding frame to move left and right, and control the lifting of the rim supporting rod through the lifting driving mechanism on the feeding frame, when the rack and the sliding plate of the feeding frame are locked, the displacement driving mechanism drives the feeding frame to move left or right as a whole, when the rack and the sliding plate of the feeding frame are unlocked, the displacement driving mechanism drives the sliding plate to slide relative to the rack, the push rod on the sliding plate changes between vertical and inclined during the sliding process, and the lifting of the rim supporting rod is realized.

[0018] 3. The displacement driving mechanism drives the screw rod to rotate forward and reverse through the third motor, controls the sliding plate to move left and right, and can accurately control the left and right displacement of the feeding frame and the lifting height of the rim supporting rod.

[0019] 4. The locking mechanism uses a two-end abutment locking method to lock the slide plate. Through the cooperation of the first permanent magnet and the second permanent magnet, the limit plate at the right end of the slide plate is automatically unlocked. Through the cooperation of the first permanent magnet and the third permanent magnet, the limit plate at the left end of the slide plate is automatically unlocked. No additional control commands are required, which is convenient and quick.

[0020] 5. The left and right ends of the sliding groove on the gantry base are equipped with fifth permanent magnets, and the left and right ends of the platform are equipped with fourth permanent magnets that attract the fifth permanent magnets, which can improve the static stability of the platform when the slide plate slides relative to the platform.

[0021] 6. The front end of the gantry is equipped with an unloading mechanism, which can automatically transfer the wheel rims unloaded from the platform to the next process, reducing the labor intensity of workers and improving production efficiency;

[0022] 7. A feeding mechanism is installed on the left column of the gantry, which can accurately position the rim to be processed, ensuring that the position of the rim to be processed is constant when it is lifted by the rim support rod, thus improving the loading efficiency; the distance between the two guide plates of the feeding mechanism is adjustable, which can meet the needs of different types of rims and has a wide range of applications.

[0023] 8. The steel-aluminum composite wheel of this invention has an inner aluminum plate layer for the rim, which is lightweight, and an outer steel plate layer, which has good wear resistance when in direct contact with the tire and is not easily deformed. It can also be processed by roll forming, which has high material utilization and high production efficiency. The spokes are formed by hot forging of aluminum rods, which has high material utilization and light product weight. The rim and spokes are welded by friction welding, which finally yields a steel-aluminum composite wheel that is lightweight, has high structural strength, and has a long service life.

[0024] In summary, the steel-aluminum composite wheel processing device of the present invention can roll-form wheel rims. Through the cooperation of the feeding frame and the displacement drive mechanism, it automatically conveys the wheel rims to be processed onto the lower mold assembly and removes the processed wheel rims from the lower mold assembly, reducing the labor intensity of workers and improving production efficiency and safety. The wheel rim of the steel-aluminum composite wheel of the present invention has a double-layer structure, with an inner aluminum plate layer that is lightweight and an outer steel plate layer that has high structural strength. The spokes are made of aluminum rods, resulting in a wheel that is lightweight, has high structural strength, and has a long service life. Attached Figure Description

[0025] Figure 1 A schematic diagram of a steel-aluminum composite wheel production unit;

[0026] Figure 2 This is a schematic diagram of the gantry frame structure;

[0027] Figure 3 This is a structural diagram of the lower mold assembly and the upper mold assembly;

[0028] Figure 4 Structure diagram of feeding frame;

[0029] Figure 5 Structure diagram of feeding frame; Figure 4 AA sectional view of the feeding frame;

[0030] Figure 6 BB sectional view of the feeding frame; Figure 4 BB sectional view of the feeding frame;

[0031] Figure 7 Structure diagram of displacement driving mechanism;

[0032] Figure 8 Structure diagram of unloading mechanism;

[0033] Figure 9 Structure diagram of feeding mechanism;

[0034] Figure 10 Structure diagram of steel-aluminum composite tire.

[0035] Figure 1, gantry, 11, base, 111, sliding groove, 12, left stand, 13, right stand, 131, sliding rail, 132, rail slider, 14, cross beam, 2, lower die assembly, 21, lower die, 22, first motor, 3, upper die assembly, 31, hydraulic cylinder, 32, lifting frame, 33, upper die, 34, second motor, 35, transmission mechanism, 4, feeding frame, 41, rack, 411, unloading part, 412, storage hole, 42, rim supporting rod, 43, lifting driving mechanism, 431, sliding plate, 4311, hinged plate, 4312, pressure sensor, 4313, vertical plate, 4314, threaded hole, 432, push rod, 44, locking mechanism, 441, limiting plate, 442, first permanent magnet, 443, second permanent magnet, 444, third permanent magnet, 445, fourth permanent magnet, 446, fifth permanent magnet, 5, displacement driving mechanism, 51, lead screw, 52, third motor, 6, clamping die, 7, unloading mechanism, 71, unloading table, 72, transfer table, 73, front baffle, 74, left baffle, 75, conveying roller, 76, air cylinder, 77, push plate, 8, feeding mechanism, 81, horizontal plate, 82, feeding port, 821, sliding hole, 83, guide plate, 831, sliding block, 832, elastic protrusion, 84, bidirectional lead screw, 841, nut seat, 85, fourth motor, 10, rim, 101, steel plate layer, 102, aluminum plate layer, 20, spoke. DETAILED DESCRIPTION

[0036] The specific embodiments of the present application will be described below in conjunction with the accompanying drawings and examples:

[0037] It should be noted that the structure, proportion, size, etc. shown in the drawings of the present specification are only used to cooperate with the disclosed content, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present application. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose of the present application, should be within the scope of the disclosed technology.

[0038] At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" mentioned in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship is also considered as the implementation range of the present application without substantial change of the technical content. Embodiment 1

[0039] In combination with the drawings Figures 1-9 The present embodiment provides a steel-aluminum composite wheel production device, which comprises a gantry 1 composed of a base 11, a left vertical column 12, a right vertical column 13 and a cross beam 14. The right vertical column 13 is provided with a lower die assembly 2. The cross beam 14 is provided with an upper die assembly 3. The base 11 is slidably provided with a feeding frame 4 and a displacement driving mechanism 5 for driving the feeding frame 4 to slide left and right. The feeding frame 4 comprises a "U"-shaped rack 41 which is open downward and penetrates left and right, a plurality of rim supporting rods 42 which slide through the rack 41, and a lifting driving mechanism 43 for driving the rim supporting rods 42 to lift. The left side of the upper end surface of the rack 41 is provided with a clamping die 6 which is inserted and matched with the lower die assembly 2.

[0040] In the above technical solution, the lower die assembly 2, the upper die assembly 3 and the clamping die 6 are used for roll forming the rim 10 to be processed (in the present application, the rim 10 before and after roll forming is collectively referred to as the rim 10). The lower die assembly 2, the upper die assembly 3 and the clamping die 6 can all adopt the conventional settings in the prior art. In the present embodiment, for example, Figure 3As shown, the lower mold assembly 2 includes a lower mold 21 rotatably arranged on the right vertical column 13 and a first motor 22 driving the lower mold 21 to rotate, and the left side wall of the lower mold 21 is provided with a plug-in shaft, and the right side wall of the clamping mold 6 is provided with a plug-in groove rotatably matched with the plug-in shaft; the upper mold assembly 3 includes a hydraulic cylinder 31 arranged on the cross beam 14, the piston rod of the hydraulic cylinder 31 is connected to the lifting frame 32 after penetrating through the cross beam 14, the lifting frame 32 is a double-layer frame, the lower layer is provided with an upper mold 33 matched with the lower mold 21, and the upper layer is provided with a second motor 34, a transmission mechanism 35 is connected to the rotating shaft of the second motor 34 and the rotating shaft of the upper mold 33 respectively, and the inner side wall of the right vertical column 13 is vertically provided with a sliding rail 131, the sliding rail 131 is provided with a rail sliding block 132, and the rail sliding block 132 is connected to the right side wall of the lifting frame 32. The feeding frame 4 is used for feeding the to-be-processed rim 10 to the lower mold assembly 2 and removing the processed rim 10 from the lower mold assembly 2, and in the initial state, the feeding frame 4 is located in the left rim loading and unloading area, and in use, ① the to-be-processed rim 10 is placed on the rim supporting rod 42 of the feeding frame 4, the displacement driving mechanism 5 drives the feeding frame 4 to slide to the right until it enters the rolling forming area, at this time, the to-be-processed rim 10 is sleeved on the lower mold 21 of the lower mold assembly 2, and the clamping mold 6 is rotatably plugged with the lower mold 21; ② the rim supporting rod 42 is lowered to the lowest point by the lifting driving mechanism 43, so that the to-be-processed rim 10 is hung on the lower mold 21 of the lower mold assembly 2; ③ the upper mold 33 of the upper mold assembly 3 is driven to descend by the hydraulic cylinder 31, and the lower mold 21 and the upper mold 33 are driven to rotate by starting the first motor 22 and the second motor 34, so as to perform rolling forming on the to-be-processed rim 10; ④ after the rolling forming is completed, the lower mold assembly 2 and the upper mold assembly 3 stop running and reset; ⑤ the rim supporting rod 42 is lifted by the lifting driving mechanism 43 to hold the processed rim 10; ⑥ the displacement driving mechanism 5 drives the feeding frame 4 to slide to the left to return to the rim loading and unloading area, and after the processed rim 10 is removed, a new to-be-processed rim 10 is placed again for the next rolling forming.

[0041] The steel-aluminum composite wheel production device in the embodiment can efficiently and safely perform rolling forming on the rim 10, and through cooperation of the feeding frame 4 and the displacement driving mechanism 5, the to-be-processed rim 10 can be automatically fed to the lower mold assembly 2 and removed from the lower mold assembly 2 after processing, so as to reduce the labor intensity of workers and improve the production efficiency and safety.

[0042] In one specific technical solution, the lifting drive mechanism 43 includes a slide plate 431 connected to the displacement drive mechanism 5. The slide plate 431 can slide left and right along the inner side wall of the frame 41. A hinge plate 4311 is embedded on the upper end surface of the slide plate 431. A push rod 432 that can tilt left and right is hinged to the upper end surface of the hinge plate 4311. A pressure sensor 4312 is provided on the lower end surface. The push rod 432 is hinged to a rim support rod 42. The frame 41 is provided with a locking mechanism 44 that can lock or unlock the slide plate 431. When the slide plate 431 is locked, the push rod 432 is in a vertical state.

[0043] In the above technical solution, the hinge plate 4311 embedded on the upper end face of the slide plate 431 means that a groove with the same shape as the hinge plate 4311 is opened on the slide plate 431, and the hinge plate 4311 is placed in the groove; the pressure sensor 4312 determines whether the rim support rod 42 supports the rim 10 by detecting pressure changes; the sliding fit between the slide plate 431 and the two inner side walls of the frame 41 is not limited. Horizontal sliding grooves can be set on the two inner side walls of the frame 41, and the front and rear sides of the slide plate 431 can be slidably inserted into the horizontal sliding grooves. At this time, the lower end face of the slide plate 431 does not contact the base 11 of the gantry frame 1, or it can be as in this embodiment. Figure 4 As shown, the front and rear sides of the slide plate 431 directly slide against the two inner sidewalls of the frame 41, and the lower end face of the slide plate 431 slides against the base 11 of the gantry frame 1. When the slide plate 431 is locked, the push rod 432 is in a vertical state, and the rim support rod 42 rises to its highest point to lift the rim 10. The structure of the locking mechanism 44 is not limited. It can be a rod with a telescopic mechanism, such as an electric telescopic rod, which is set on the frame 41. A locking hole for inserting the electric telescopic rod is provided on the slide plate 431. The electric telescopic rod can extend under control and insert into the locking hole of the slide plate 431 to lock the slide plate 431 and the frame 41. In addition, any other suitable locking structure can be used. The displacement drive mechanism 5 can drive the feeding rack 4 to move left and right, and can also control the lifting and lowering of the rim support rod 42 through the lifting drive mechanism 43 on the feeding rack 4. When the platform 41 of the feeding rack 4 is locked with the slide plate 431, the displacement drive mechanism 5 drives the feeding rack 4 to move left or right as a whole. When the platform 41 of the feeding rack 4 is unlocked from the slide plate 431, the displacement drive mechanism 5 drives the slide plate 431 to slide relative to the platform 41. During the sliding process, the push rod 432 on the slide plate 431 changes between vertical and tilt, realizing the lifting and lowering of the rim support rod 42.

[0044] The working process of the lifting drive mechanism 43 is as follows: When the wheel rim 10 to be processed is conveyed to the lower mold assembly 2, the locking mechanism 44 locks the slide plate 431 and the platform 41. At this time, the wheel rim support rod 42 lifts the wheel rim 10, and the displacement drive mechanism 5 drives the slide plate 431 and the platform 41 locked with the slide plate 431 to move to the right. When it moves to the roll forming area, the locking mechanism 44 unlocks the slide plate 431 and the platform 41. Since the load clamping mold 6 is on the platform 41, the sliding resistance between the platform 41 and the base 11 is greater than the sliding resistance between the platform 41 and the slide plate 431. The platform 41 remains stationary, and the displacement drive mechanism 5 drives the slide plate 431 to move. 31 moves to the right along the inner wall of the platform 41, and the push rod 432, which is hinged to the slide plate 431, enters the tilted state, driving the rim support rod 42 to descend to the lowest point and detach from the rim 10 to be processed. At this time, the rim 10 to be processed is suspended on the lower mold 21 of the lower mold assembly 2. When the processed rim 10 is removed from the lower mold assembly 2, the displacement drive mechanism 5 drives the slide plate 431 to move to the left, the push rod 432 re-enters the vertical state, and the rim support rod 42 rises to the highest point, supporting the processed rim 10. At this time, the locking mechanism 44 locks the slide plate 431 and the platform 41, and the platform 41 moves to the left with the slide plate 431 to the rim loading and unloading area.

[0045] In one specific technical solution, the upper surface of the base 11 is provided with a slide groove 111, the platform 41 is disposed in the slide groove 111, the displacement driving mechanism 5 includes a lead screw 51 rotatably disposed in the slide groove 111, the base 11 is provided with a third motor 52 for driving the lead screw 51 to rotate, and the left and right sides of the slide plate 431 are respectively provided with upright plates 4313, and the upright plates 4313 are provided with threaded holes 4314 that cooperate with the lead screw 51.

[0046] In the above technical solution, the third motor 52 drives the lead screw 51 to rotate forward and reverse, controlling the slide plate 431 to move left and right, which can accurately control the left and right displacement of the feeding frame 4 and the lifting height of the rim support rod 42.

[0047] In one specific technical solution, the locking mechanism 44 includes two limiting plates 441 that abut against the left and right ends of the slide plate 431. The limiting plates 441 are vertically slidably disposed on the inner side wall of the frame 41, and a first permanent magnet 442 is provided at the bottom. A second permanent magnet 443 that repels the first permanent magnet 442 is provided in the roll forming area on the base 11. When the frame 41 moves to the right to the roll forming area, the first permanent magnet 442 on the right limiting plate 441 is directly opposite the second permanent magnet 443. The magnetic repulsion force pushes the right limiting plate 441 to move upward and release the lock on the right end of the slide plate 431.

[0048] In the technical solution, the locking mechanism 44 adopts the mode of abutting and locking at both ends to lock the sliding plate 431, and through the mutual cooperation of the first permanent magnet 442 and the second permanent magnet 443, the automatic unlocking of the limiting plate 441 at the right end of the sliding plate 431 is realized, without the need for additional control commands, which is convenient and fast. The limiting plate 441 can be vertically and slidably connected to the inner side wall of the rack 41 in any suitable manner. In this embodiment, a T-shaped slot is arranged on the inner side wall of the rack 41, and the limiting plate 441 is a T-shaped block vertically and slidably matched with the T-shaped slot. In addition, in order to further improve the limiting stability, two limiting plates 441 are arranged on the two inner side walls of the rack 41, respectively. In use, the rack 41 moves to the right into the roll forming area, the clamping die 6 is rotatably and insertingly matched with the lower die 21 of the lower die assembly 2, the rim supporting rod 42 is sleeved on the lower die 21 to hold the to-be-processed rim 10, the first permanent magnet 442 at the bottom of the right end limiting plate 441 is abutted with the second permanent magnet 443 arranged in the roll forming area, under the action of magnetic repulsion, the first permanent magnet 442 at the right end drives the right end limiting plate 441 connected thereto to move upward to above the sliding plate 431, thereby releasing the locking of the right end of the sliding plate 431, and the rack 41 enters a stationary state. The displacement driving mechanism 5 drives the sliding plate 431 to move rightward along the inner side wall of the rack 41, the rim supporting rod 42 descends to the lowest point and is separated from the to-be-processed rim 10, and the to-be-processed rim 10 is hung on the lower die 21 of the lower die assembly 2 and is ready for roll forming. When the processing is completed, the displacement driving mechanism 5 drives the sliding plate 431 to move leftward along the inner side wall of the rack 41, when the sliding plate 431 abuts against the left end limiting plate 441, the rim supporting rod 42 rises to the highest point to hold the processed rim 10, and the sliding plate 431 continues to move leftward to drive the rack 41 to move leftward. When the rack 41 moves leftward, the first permanent magnet 442 on the right end limiting plate 441 moves away from the second permanent magnet 443 in the roll forming area, and under the action of gravity, the right end limiting plate 441 falls back to reset and relock the right end of the sliding plate 431.

[0049] In one specific technical solution, the rim loading and unloading area on the base 11 is provided with a third permanent magnet 444 repelling the first permanent magnet 442, when the rack 41 moves to the left into the rim loading and unloading area, the first permanent magnet 442 on the left end limiting plate 441 is opposite to the third permanent magnet 444, the magnetic repulsion pushes the left end limiting plate 441 to move upward to release the locking of the left end of the sliding plate 431, the upper end face of the rack 41 is provided with a forwardly inclined discharging part 411, and the discharging part 411 is provided with a receiving hole 412 receiving the rim supporting rod 42.

[0050] In the above technical solution, the receiving hole 412 is consistent in shape with the rim supporting rod 42, and in the present application, the rim supporting rod 42 is T-shaped, so the receiving hole 412 is correspondingly provided in T-shaped. In use, the rack 41 moves to the left to the rim loading and unloading area, the first permanent magnet 442 at the bottom of the left end limiting plate 441 on the rack 41 is in butt joint with the third permanent magnet 444 provided in the rim loading and unloading area, under the action of magnetic repulsion, the first permanent magnet 442 at the left end drives the left end limiting plate 441 connected thereto to move up to above the sliding plate 431, thereby releasing the locking of the left end of the sliding plate 431, the displacement driving mechanism 5 drives the sliding plate 431 to move left along the inner side wall of the rack 41, and the rim 42 is lowered to the lowest point and received in the receiving hole 412 of the discharge part 411, at this time, the processed rim 10 rolls off the rack 41 from the inclined discharge part 411, and automatic discharge is realized; after the discharge is completed, the displacement driving mechanism 5 drives the sliding plate 431 to move right along the inner side wall of the rack 41, the rim supporting rod 42 is raised, when the sliding plate 431 abuts against the right end limiting plate 441, the rim supporting rod 42 is raised to the highest point, at this time, a new rim to be processed is filled, and then the displacement driving mechanism 5 drives the sliding plate 431 to continue to move right, the sliding plate 431 drives the rack 41 to move right, and the first permanent magnet 442 on the left end limiting plate 441 is away from the third permanent magnet 444 of the rim loading and unloading area, under the action of gravity, the left end limiting plate 441 falls to lock the left end of the sliding plate 431.

[0051] In one specific technical solution, when the rack 41 enters the rolling forming area, the right side wall of the rack 41 abuts against the right side wall of the sliding groove 111, and when the rack 41 enters the rim loading and unloading area, the left side wall of the rack 41 abuts against the left side wall of the sliding groove 111, the left side wall and the right side wall of the rack 41 are respectively provided with fourth permanent magnets 445, and the left side wall and the right side wall of the sliding groove 111 are respectively provided with fifth permanent magnets 446 which are attracted to the fourth permanent magnets 445.

[0052] In the above technical solution, the magnetic attraction force of the fourth permanent magnet 445 and the fifth permanent magnet 446 can further improve the static stability of the rack 41 when the sliding plate 431 slides relative to the rack 41.

[0053] In one specific technical solution, the portal frame 1 is provided with a discharge mechanism 7 at the front end, the discharge mechanism 7 includes an inclined discharge table 71 in butt joint with the discharge part 411, the discharge table 71 is in butt joint with a transfer table 72 at the end, the front end of the transfer table 72 is provided with a front baffle 73, the left side is provided with a left baffle 74, and the right side is in butt joint with a conveying roller 75, the left side of the left baffle 74 is provided with a pneumatic cylinder 76, and the right side is provided with a push plate 77 connected with the piston rod of the pneumatic cylinder 76.

[0054] In the technical scheme, the unloading mechanism 7 can automatically transfer the rim 10 unloaded from the rack 41 to the next process. In use, the processed rim 10 falls into the transfer table 72 from the unloading table 71 which is in butt joint with the unloading part 411 of the rack 41, the cylinder 76 pushes the rim 10 in the transfer table 72 from the left side, the rim 10 is poured to the right into the conveying roller 75, and then is conveyed to the next process through the conveying roller 75, thereby reducing the labor intensity of workers and improving the production efficiency.

[0055] In one specific technical scheme, the rim supporting rod 42 is provided with an upper feeding mechanism 8, the upper feeding mechanism 8 comprises a horizontal plate 81 provided on the inner side wall of the left stand 12, the horizontal plate 81 is provided with a rectangular feeding port 82 capable of facing the rim supporting rod 42, and the left and right side walls of the feeding port 82 are mirror-symmetrically provided with guide plates 83, and the distance between the two guide plates 83 is consistent with the width of the rim 10.

[0056] In the technical scheme, the upper feeding mechanism 8 can accurately position the rim 10 to be processed, so that the position of the rim 10 to be processed is constant when the rim 10 to be processed is lifted by the rim supporting rod 42, and the loading efficiency is improved. In order to further improve the loading efficiency, the top of the guide plate 83 is provided with a guide inclined surface, and the two guide plates 83 form a Y-shaped channel.

[0057] In one specific technical scheme, the front and rear sides of the guide plate 83 are respectively connected with sliding blocks 831, the front and rear sides of the feeding port 82 are respectively provided with sliding holes 821 matched with the sliding blocks 831, the front side wall of the horizontal plate 81 is rotatably provided with a bidirectional screw 84, two nut seats 841 are symmetrically provided on the bidirectional screw 84, the sliding block 831 of one guide plate 83 is connected with one nut seat 841, the horizontal plate 81 is provided with a fourth motor 85 for driving the bidirectional screw 84 to rotate, and the inner side wall of the guide plate 83 is provided with elastic protrusions 832 below.

[0058] In the technical scheme, the distance between the two guide plates 83 is adjustable, which can meet the needs of different models of the rim 10, has a wide range of applications, and through the cooperation of the fourth motor 85, the bidirectional screw 84 and the nut seat 841, the two guide plates 83 can be driven to move synchronously and relatively, thereby improving the working efficiency; and the elastic protrusions 832 on the guide plate 83 can buffer the falling of the rim 10.

[0059] The working principle and working process of the embodiment are as follows: ①connect the lower die assembly 2, the upper die assembly 3, the feeding frame 4, the displacement driving mechanism 5, the unloading mechanism 7 and the loading mechanism 8 with the controller, and connect the controller with the display; in the initial state, the feeding frame 4 is parked in the rim loading and unloading area; ②put the to-be-processed rim 10 into the feeding opening 82 of the loading mechanism 8, and the to-be-processed rim 10 falls onto the rim supporting rod 42 by adhering to the side walls of the two guide plates 83; ③start the displacement driving mechanism 5, the displacement driving mechanism 5 drives the feeding frame 4 to slide to the right until entering the rolling forming area, at this time, the to-be-processed rim 10 is sleeved on the lower die 21 of the lower die assembly 2, the clamping die 6 is inserted and matched with the lower die 21, the first permanent magnet 442 at the bottom of the right end limiting plate 441 is butt jointed with the second permanent magnet 443 arranged in the rolling forming area, under the action of magnetic repulsion, the first permanent magnet 442 at the right end drives the right end limiting plate 441 connected therewith to move upwards to above the sliding plate 431, the locking of the right end of the sliding plate 431 is released, ④the displacement driving mechanism 5 drives the sliding plate 431 to move right along the inner side wall of the rack 41, the rim supporting rod 42 descends to the lowest point, and the to-be-processed rim 10 is hung on the lower die 21 of the lower die assembly 2; ⑤drive the upper die 33 of the upper die assembly 3 to descend through the hydraulic cylinder 31, and simultaneously open the first motor 22 and the second motor 34 to drive the lower die 21 and the upper die 33 to rotate, so as to perform rolling forming on the to-be-processed rim 10; ⑥after the rolling forming is completed, the lower die assembly 2 and the upper die assembly 3 stop running and reset; ⑦the displacement driving mechanism 5 drives the sliding plate 431 to move left along the inner side wall of the rack 41, when the sliding plate 431 abuts against the left end limiting plate 441, the rim supporting rod 42 rises to the highest point to hold the processed rim 10, and the sliding plate 431 continues to move left to drive the rack 41 to move left, when the rack 41 moves left, the first permanent magnet 442 on the right end limiting plate 441 moves away from the second permanent magnet 443 in the rolling forming area, under the action of gravity, the right end limiting plate 441 falls to reset, and the right end of the sliding plate 431 is relocked; ⑧the displacement driving mechanism 5 drives the feeding frame 4 to slide left to the rim loading and unloading area, the first permanent magnet 442 at the bottom of the left end limiting plate 441 of the rack 41 is butt jointed with the third permanent magnet 444 arranged in the rim loading and unloading area, under the action of magnetic repulsion, the first permanent magnet 442 at the left end drives the left end limiting plate 441 connected therewith to move upwards to above the sliding plate 431, the locking of the left end of the sliding plate 431 is released, the displacement driving mechanism 5 drives the sliding plate 431 to move left along the inner side wall of the rack 41, the rim 42 descends to the lowest point and is accommodated in the accommodation hole 412 of the unloading part 411, at this time, the processed rim 10 rolls off the rack 41 from the inclined unloading part 411, enters the unloading mechanism 7, and automatic unloading is realized; ⑨after the unloading is completed, the displacement driving mechanism 5 drives the sliding plate 431 to move right along the inner side wall of the rack 41, the rim supporting rod 42 rises, when the sliding plate 431 abuts against the right end limiting plate 441, the rim supporting rod 42 rises to the highest point, at this time, a new to-be-processed rim is filled, and the next rolling forming is performed. Example 2

[0060] like Figure 10 As shown, this embodiment provides a steel-aluminum composite wheel. The wheel rim 10 is produced using a steel-aluminum composite wheel production device as described in Embodiment 1, and the wheel spokes 20 are produced by hot forging of aluminum rods. The wheel rim 10 is divided into a steel plate layer 101 and an aluminum plate layer 102 from the outside to the inside in the radial direction. The wheel rim 10 and the wheel spokes 20 are welded by friction welding.

[0061] In this embodiment, the rim 10 is made of a composite of steel and aluminum plates, and the spokes 20 are made of aluminum rods. The rim 10 and spokes 20 are welded together using a special friction welding process. During the processing of the rim 10, the steel and aluminum plates are cut into long strips according to the required dimensions, rolled, and welded. Then, the rolled steel and aluminum plates are fitted together into a cylinder, with the steel cylinder on the outside and the aluminum cylinder on the inside. This is then rolled and formed by the production equipment described in Example 1, achieving a material utilization rate of up to 98%. The steel plate is made of high-strength material, reducing the material thickness to 2mm. The aluminum plate is preferably made of 6061 aluminum alloy. Due to the use of steel-aluminum composite material support, the aluminum alloy material thickness can be reduced to 6mm, and the weight of the rim 10 can be kept below 15kg. The surface of the rim 10 does not require multiple processing steps, increasing production efficiency by 6 times. The spoke 20 uses lightweight aluminum rods as raw materials, further reducing the overall weight and improving the load-bearing capacity and durability of the wheel. The spokes are manufactured by forging aluminum rods, achieving a material utilization rate of up to 90% and a product weight of 11kg. The spoke 20 can also be customized.

[0062] The completed wheel assembly can weigh up to 26kg, which is lighter than steel wheels and close to the weight of aluminum wheels. After the tire is installed, the high-strength steel plate is in direct contact with the tire, avoiding tire wear on the aluminum alloy and providing stronger rigid support. In addition, after the tire is installed, the entire exposed surface of the steel-aluminum composite wheel is consistent with that of the aluminum alloy wheel.

[0063] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A steel-aluminum composite wheel production device, comprising a gantry (1) composed of a base (11), a left vertical column (12), a right vertical column (13) and a cross beam (14), characterized in that, The right upright column (13) is provided with a lower die assembly (2), the cross beam (14) is provided with an upper die assembly (3), the base (11) is provided with a feeding frame (4) and a displacement driving mechanism (5) for driving the feeding frame (4) to slide left and right, the feeding frame (4) comprises a "U"-shaped rack (41) which is open downward and penetrates left and right, a plurality of rim supporting rods (42) which slide through the rack (41), and a lifting driving mechanism (43) for driving the rim supporting rods (42) to lift, and the rack (41) is provided with a clamping die (6) which is inserted and matched with the lower die assembly (2) on the left side of the upper end surface. The lifting driving mechanism (43) comprises a sliding plate (431) connected with the displacement driving mechanism (5), the sliding plate (431) can slide left and right along the inner side wall of the rack (41), the upper end surface of the sliding plate (431) is embedded with a hinged plate (4311), the hinged plate (4311) is hinged with a push rod (432) which can tilt left and right on the upper end surface, and a pressure sensor (4312) is arranged on the lower end surface, the push rod (432) is hinged with the rim supporting rod (42), the rack (41) is provided with a locking mechanism (44) which can lock or unlock the sliding plate (431), when the sliding plate (431) is locked, the push rod (432) is in a vertical state. The locking mechanism (44) comprises two limiting plates (441) which abut against the left and right ends of the sliding plate (431), the limiting plates (441) are vertically and slidably arranged on the inner side wall of the rack (41), and a first permanent magnet (442) is arranged on the bottom, a second permanent magnet (443) which repels the first permanent magnet (442) is arranged in the rolling forming area on the base (11), when the rack (41) moves to the right to the rolling forming area, the first permanent magnet (442) on the right end limiting plate (441) is opposite to the second permanent magnet (443), and the magnetic repulsion force pushes the right end limiting plate (441) to move upward to unlock the right end of the sliding plate (431).

2. The steel-aluminum composite wheel production device according to claim 1, characterized in that, The base (11) is provided with a sliding groove (111) on the upper end surface, the rack (41) is arranged in the sliding groove (111), the displacement driving mechanism (5) comprises a lead screw (51) which is rotatably arranged in the sliding groove (111), the base (11) is provided with a third motor (52) for driving the lead screw (51) to rotate, the left and right sides of the sliding plate (431) are respectively provided with a vertical plate (4313), and the vertical plate (4313) is provided with a threaded hole (4314) matched with the lead screw (51).

3. The steel-aluminum composite wheel production device according to claim 2, characterized in that, The rim mounting and dismounting area on the base (11) is provided with a third permanent magnet (444) which repels the first permanent magnet (442), when the rack (41) moves to the left to the rim mounting and dismounting area, the first permanent magnet (442) on the left end limiting plate (441) is opposite to the third permanent magnet (444), and the magnetic repulsion force pushes the left end limiting plate (441) to move upward to unlock the left end of the sliding plate (431), and the rack (41) is provided with a forwardly inclined discharging part (411) on the upper end surface, and the discharging part (411) is provided with a receiving hole (412) for receiving the rim supporting rod (42).

4. The steel-aluminum composite wheel production device according to claim 3, characterized in that, When the rack (41) enters the rolling forming area, the right side wall of the rack (41) abuts against the right side wall of the chute (111), when the rack (41) enters the rim loading and unloading area, the left side wall of the rack (41) abuts against the left side wall of the chute (111), the left side wall and the right side wall of the rack (41) are respectively provided with fourth permanent magnets (445), and the left side wall and the right side wall of the chute (111) are respectively provided with fifth permanent magnets (446) which are attracted to the fourth permanent magnets (445).

5. The steel-aluminum composite wheel production device according to claim 4, characterized in that, The gantry (1) is provided with a discharging mechanism (7) at the front end, the discharging mechanism (7) comprises an inclined discharging table (71) connected with a discharging part (411), the tail end of the discharging table (71) is connected with a transfer table (72), the front end of the transfer table (72) is provided with a front baffle (73), the left side is provided with a left baffle (74), and the right side is connected with a conveying roller (75), the left side of the left baffle (74) is provided with a cylinder (76), and the right side is provided with a push plate (77) connected with the piston rod of the cylinder (76).

6. The steel-aluminum composite wheel production device according to claim 5, wherein The rim supporting rod (42) is provided with an upper feeding mechanism (8) above, the upper feeding mechanism (8) comprises a horizontal plate (81) arranged on the inner side wall of the left stand column (12), the horizontal plate (81) is provided with a rectangular feeding port (82) capable of facing the rim supporting rod (42), the left and right two side walls of the feeding port (82) are mirror-symmetrically provided with guide plates (83), and the spacing between the two guide plates (83) is consistent with the width of the rim (10).

7. The steel-aluminum composite wheel production device according to claim 6, characterized in that, The front and rear sides of the guide plate (83) are respectively connected with sliding blocks (831), the front and rear sides of the feeding port (82) are respectively provided with sliding holes (821) matched with the sliding blocks (831), the front side wall of the horizontal plate (81) is rotatably provided with a bidirectional screw (84), two nut seats (841) are symmetrically arranged on the bidirectional screw (84), the sliding block (831) of one guide plate (83) is connected with one nut seat (841), the horizontal plate (81) is provided with a fourth motor (85) for driving the bidirectional screw (84) to rotate, and the inner side wall of the guide plate (83) is provided with an elastic protrusion (832) below.

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