Foaming wheel automatic assembly machine

Abstract

The utility model provides a kind of foaming wheel automatic assembly machine, it is related to the technical field of automation equipment.It includes rack, the installation mesa of being suitable for placing hub and foaming wheel is set on the rack, further include: liftable fixture assembly;Wherein, the fixture assembly includes lifting device, lifting main body and the support plate component being set on the lifting main body, the lifting device is suitable for driving the lifting main body and moves up and down along rack, the support plate component includes several circumferentially arranged support wheel structure, the support wheel structure is suitable for moving radially outward when lifting main body rises to support open foaming wheel placed in installation mesa, and can be shrunk into installation mesa below and move radially inward when lifting main body drops, to separate foaming wheel so that the foaming wheel is automatically embraced in the outer periphery of hub under the action of its elasticity. Through the present scheme to improve the efficiency of installing foaming wheel.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and more specifically, to an automatic foaming wheel assembly machine. Background Technology

[0002] The existing assembly process for PU foam wheels presents difficulties, primarily due to the need to assemble the elastic tire to the rim. This process typically requires manual operation, which is not only inefficient but also prone to inconsistent assembly quality. Specifically, because the PU foam tire is elastic, it needs to be stretched open to insert into the rim during assembly. Manual operation of this process is not only time-consuming and labor-intensive but also makes it difficult to ensure consistent stretching, potentially leading to inconsistent product quality. Furthermore, after inserting the stretched tire into the rim, it's crucial to ensure the tire rebounds evenly and tightly wraps around the rim. Relying on manual operation for this step makes it difficult to guarantee consistently achieving the desired results. Utility Model Content

[0003] This utility model discloses an automatic foaming wheel assembly machine, which aims to solve the problems mentioned above.

[0004] The present invention adopts the following solution:

[0005] An automatic foam wheel assembly machine includes a frame with a mounting platform suitable for placing a wheel hub and a foam wheel. It also includes a liftable fixture assembly. The fixture assembly includes a lifting device, a lifting body, and a support plate assembly mounted on the lifting body. The lifting device is adapted to drive the lifting body to move up and down along the frame. The support plate assembly includes several circumferentially arranged support wheel structures. These support wheel structures are adapted to move radially outward when the lifting body rises to open up the foam wheel placed on the mounting platform, and to retract radially inward simultaneously when the lifting body descends, so as to detach from the foam wheel and allow the foam wheel to automatically hug the outer circumference of the wheel hub under its own elasticity.

[0006] Furthermore, the support plate assembly includes a slide rail mounted on the upper surface of the lifting body, a slider with a support wheel structure slidably connected to the slide rail, and a lifting mechanism connected to the central shaft of the lifting body. The output end of the lifting mechanism is provided with a connecting block, and a plurality of swing rods are hinged on the connecting block. The other end of the swing rods is hinged to the slider. The lifting mechanism is adapted to drive the connecting block to rise so that the swing rods drive the slider to move radially outward along the slide rail, thereby causing the support wheel structure to open the foaming wheel.

[0007] Furthermore, the support wheel structure is an L-shaped support plate disposed on the slider, and several L-shaped support plates are evenly distributed around the circumference.

[0008] Furthermore, the lifting body includes an upper mounting plane and a lower mounting plane, a plurality of slide rails are evenly installed around the circumference in the upper mounting plane, and the lifting mechanism is disposed on the lower mounting plane.

[0009] Furthermore, the lifting device includes two first lifting cylinders connecting the frame and the lifting body, and a guide rail mechanism is provided between the lifting body and the frame.

[0010] Furthermore, the lifting mechanism includes a second lifting cylinder, and the output shaft end of the second lifting cylinder is provided with an extension rod. The extension rod is adapted to extend out of the mounting platform to install the wheel hub when the lifting body rises and the support plate assembly opens the foaming wheel.

[0011] Furthermore, the upper mounting surface is provided with several elongated slots to allow the swing rod to pass through, and the mounting platform is provided with several movable slots corresponding one-to-one with the slide rails to allow the support plate structure to pass through the mounting platform and move.

[0012] Furthermore, a hub-pressing fixture is provided on the mounting platform to prevent the hub from jumping axially.

[0013] Beneficial effects:

[0014] This application provides an automatic foaming wheel assembly machine, which achieves automated and uniform expansion and release of foaming wheels through the synchronous radial movement of a liftable fixture assembly and its support wheel structure. This solves the problems of uneven expansion force, material damage, and low assembly accuracy in manual operation. It has the advantages of achieving uniform assembly, avoiding material damage, and improving production efficiency by automatically expanding and releasing foaming wheels. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an automatic foaming wheel assembly machine according to an embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional structural schematic diagram of an automatic foaming wheel assembly machine according to an embodiment of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the concealed mounting platform of an automatic foaming wheel assembly machine according to an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the mounting platform of an automatic foaming wheel assembly machine according to an embodiment of the present invention;

[0019] Reference numerals: 1. Frame; 11. Mounting platform; 111. Movable groove; 2. Lifting body; 21. Long groove; 3. Lifting device; 4. Guide rail mechanism; 5. Support plate assembly; 51. Lifting mechanism; 52. Slide rail; 53. Slider; 54. Swing rod; 55. Support plate structure; 56. Extension rod; 57. Connecting block. Detailed Implementation

[0020] Combination Figures 1 to 4 As shown, this embodiment provides an automatic foam wheel assembly machine, including a frame 1, on which a mounting platform 11 suitable for placing wheel hubs and foam wheels is provided, and further including: a liftable fixture assembly; wherein, the fixture assembly includes a lifting device 3, a lifting body 2, and a support plate assembly 5 disposed on the lifting body 2, the lifting device 3 is adapted to drive the lifting body 2 to move up and down along the frame 1, the support plate assembly 5 includes a plurality of circumferentially arranged support wheel structures, the support wheel structures are adapted to move radially outward when the lifting body 2 rises to open up the foam wheels placed on the mounting platform 11, and can simultaneously retract below the mounting platform 11 and move radially inward when the lifting body 2 falls, so as to disengage from the foam wheels and allow the foam wheels to automatically hug the outer periphery of the wheel hub under their own elasticity.

[0021] In this embodiment, the liftable jig assembly refers to a mechanical device that enables the tire to open and close via vertical movement. Precise lifting can be achieved using a cylinder in conjunction with the guide rail 52. The support plate assembly 5 refers to a radially expanding mechanism mounted on the lifting body 2, which can achieve linear displacement through the cooperation of the guide rail 52 and the slider 53. The support wheel structure refers to the supporting component that directly contacts the foam wheel; an L-shaped metal plate can be used to ensure uniform force distribution on the tire edge. The lifting body 2 refers to the moving platform that supports the support plate assembly 5; a double-layer mounting plane can be used to arrange the drive mechanism and the execution mechanism respectively. When the lifting device 3 drives the lifting body 2 to rise, the support wheel structure moves outward along the guide rail 52, and multiple circumferentially distributed support plates synchronously expand the inner diameter of the foam wheel. After the wheel hub is positioned, the lifting body 2 drives the support wheel structure to descend. At this time, the support plates retract below the mounting platform 11 to avoid collision and contract inward to release the constraint on the tire. Under the action of elastic restoring force, the foam wheel automatically contracts and wraps around the wheel hub, completing the assembly process. The guide rail mechanism 4 ensures accurate lifting trajectory and prevents uneven opening due to skewing. The mechanical linkage achieves synchronized opening and lifting, eliminating the influence of human factors. The equidistant distribution of rigid support plates ensures uniform circumferential expansion, enabling mechanized control of the foam wheel opening process and ensuring consistent tire deformation during each assembly. The linkage design between lifting and radial displacement allows the opening mechanism to automatically avoid the wheel hub installation path, avoiding manual intervention. This structure effectively improves assembly efficiency, reducing the single operation cycle by approximately 60% compared to manual operation, while eliminating quality fluctuations caused by operator fatigue.

[0022] Combination Figures 1 to 3As shown, in this embodiment, the automatic foaming wheel assembly machine includes a slide rail 52 mounted on the upper surface of the lifting body 2, a slider 53 with a support wheel structure slidably connected to the slide rail 52, and a lifting mechanism 51 connected to the central shaft of the lifting body 2. A connecting block 57 is provided at the output end of the lifting mechanism 51. Several swing rods 54 are hinged on the connecting block 57, and the other end of the swing rods 54 is hinged to the slider 53. The lifting mechanism 51 is adapted to drive the connecting block 57 to rise so that the swing rods 54 drive the slider 53 to move radially outward along the slide rail 52, thereby causing the support wheel structure to support the foaming wheel.

[0023] The slide rail 52 is a track structure fixed to the upper surface of the lifting body 2 to guide the linear movement of the slider 53. It can be implemented using a linear guide or a dovetail groove structure, ensuring the radial expansion accuracy of the support wheel structure by constraining the movement trajectory of the slider 53. The slider 53 is a moving component that cooperates with the slide rail 52, specifically a sliding seat with ball bearings. The radial position adjustment of the support wheel structure is achieved through the cooperation of the slide rail 52 and the slider 53. The lifting mechanism 51 is a power device that drives the connecting block 57 to move vertically, specifically using a cylinder or an electric push rod. The linear movement of the output shaft drives the swing arm 54 to change angle. The connecting block 57 is a linkage component fixed to the output end of the lifting mechanism 51, specifically a metal block or a high-strength plastic block. It converts the linear movement of the lifting mechanism 51 into the swing of the swing arm 54 through a hinge point. The lever 54 is a connecting rod that is hinged at both ends to the connecting block 57 and the slider 53 respectively. It can be implemented using a metal rod or a carbon fiber rod. It converts the vertical displacement of the connecting block 57 into the radial displacement of the slider 53 through the lever principle.

[0024] When the lifting mechanism 51 drives the connecting block 57 to move upward, the swing arm 54 rotates around the hinge point with the connecting block 57, pushing the slider 53 to slide outward along the slide rail 52. As the slider 53 moves outward, the support wheel structure fixed on the slider 53 expands outward synchronously, evenly expanding the inner wall of the foaming wheel. When the lifting body 2 drives the entire support plate assembly 5 to descend, the lifting mechanism 51 moves in the opposite direction, causing the connecting block 57 to move downward. The swing arm 54 swings back, causing the slider 53 to slide inward along the slide rail 52. The support wheel structure then retracts to below the mounting platform 11. At this time, the foaming wheel automatically hugs the hub under the elastic action. Through the rigid guiding cooperation between the slide rail 52 and the slider 53, combined with the mechanical linkage of the swing arm 54, the synchronous symmetrical expansion of the support wheel structure is achieved, ensuring that the force on each part of the foaming wheel is uniform. At the same time, the cooperation between the lifting mechanism 51 and the swing arm 54 accurately converts the vertical movement into radial displacement, avoiding the phenomenon of inconsistent expansion caused by the deviation of the force application angle during manual operation.

[0025] This embodiment can precisely control the radial movement trajectory of the support wheel structure through mechanical linkage. During the rising phase of the lifting body 2, it automatically completes the uniform spreading action of the foam wheel and simultaneously releases the spreading state during the falling phase. This structure effectively eliminates the problem of uneven force application during manual operation, allowing the foam wheel to tightly adhere to the outer surface of the hub when it rebounds, significantly improving assembly efficiency and product consistency.

[0026] In this embodiment, the support wheel structure is an L-shaped support plate set on the slider 53, with several L-shaped support plates evenly distributed around the circumference. The L-shaped support plate refers to a rigid support component with a vertical bending structure, which can be made by stamping metal sheets, with the bending angle set to 90 degrees to form an L-shaped profile. The lifting body 2 includes an upper mounting plane and a lower mounting plane, connected by a fixed support column. Several slide rails 52 are evenly installed around the circumference in the upper mounting plane, and the lifting mechanism 51 is set on the lower mounting plane. The layered structure avoids spatial interference between the slide rails 52 and the lifting mechanism 51, while enhancing the overall rigidity of the lifting body 2. The lifting device 3 includes two first lifting cylinders connecting the frame 1 and the lifting body 2, and a guide slide rail mechanism 4 is provided between the lifting body 2 and the frame 1. The two cylinders are symmetrically distributed on both sides of the lifting body 2, and the synchronicity of the lifting action is ensured by a synchronous control signal. Among them, the guide rail mechanism 4 refers to the mechanical structure that restricts the movement trajectory of the lifting body 2. Specifically, it can be implemented by a component that combines a linear guide rail and a slider 53. The guide rail is vertically fixed on the frame 1, and the slider 53 is fixed at the bottom of the lifting body 2. The sliding cooperation between the guide rail and the slider 53 eliminates the offset during the lifting process and avoids tilting or jamming caused by uneven cylinder thrust.

[0027] Combination Figure 2As shown, the lifting mechanism 51 described in this embodiment includes a second lifting cylinder. An extension rod 56 is provided at the end of the output shaft of the second lifting cylinder. The extension rod 56 is adapted to extend out of the mounting platform 11 to install the wheel hub when the lifting body 2 rises and the support plate assembly 5 expands the foaming wheel. The extension rod 56 refers to a rod-shaped structure connected to the end of the output shaft of the second lifting cylinder, and its length is designed to extend out of the mounting platform 11 when the lifting body 2 rises. When the lifting body 2 rises via the lifting device 3, the second lifting cylinder is simultaneously activated and drives the extension rod 56 to move upward, causing the top of the extension rod 56 to extend out of the mounting platform 11 to a preset position. At this time, the support plate assembly 5 has moved radially outward through the slider 53 to expand the foaming wheel to the target diameter. The operator or robotic arm can directly place the wheel hub on the top of the extension rod 56, using the positioning function of the extension rod 56 to ensure that the wheel hub and the foaming wheel remain coaxial. During the descent of the lifting body 2, the extension rod 56 retracts synchronously with the retraction of the second lifting cylinder to below the mounting platform 11. At the same time, the support plate assembly 5 detaches from the foaming wheel, and the foaming wheel automatically wraps around the wheel hub under the action of elasticity to complete the assembly. Through the linkage design between the extension rod 56 and the movement of the lifting body 2, a wheel hub installation benchmark can be directly provided while the foaming wheel is being extended, avoiding errors caused by secondary positioning and reducing manual intervention.

[0028] It should be noted that the displacement of the slider 53 can be adjusted by the second lifting cylinder to adapt to the installation requirements of different foaming wheel diameters.

[0029] Combination Figures 3 to 4As shown, this application further proposes that the upper mounting plane be provided with several elongated slots 21 to facilitate the passage of the swing arm 54, and the mounting platform 11 be provided with several movable slots 111 corresponding one-to-one with the slide rail 52 to allow the support plate structure 55 to pass through the mounting platform 11 for movement. The elongated slots 21 refer to through-slot structures opened on the upper mounting plane, specifically rectangular or elliptical slots, whose length direction matches the swing trajectory of the swing arm 54, providing clearance for the swing arm 54 during lifting and lowering, and preventing mechanical interference between the swing arm 54 and the mounting plane. The movable slots 111 refer to strip-shaped openings opened on the mounting platform 11, specifically straight slots extending in the same direction as the slide rail 52, with a width slightly larger than the thickness of the support plate structure 55, allowing the support plate structure 55 to move radially through the mounting platform 11 during lifting and lowering, ensuring that the support plate structure 55 can smoothly enter or exit the inner cavity of the foaming wheel. When the second lifting cylinder drives the support plate assembly 5 to rise, the swing rod 54 is driven by the connecting block 57 to swing. At this time, the swing rod 54 moves in the long groove 21, driving the slider 53 to slide along the slide rail 52. The support plate structure 55 simultaneously extends outward through the movable groove 111 of the mounting platform 11, expanding the foaming wheel to a predetermined size. When the lifting body 2 descends, the swing rod 54 swings in the opposite direction, causing the slider 53 to retract. The support plate structure 55 retracts along the movable groove 111 to below the mounting platform 11, disengaging from the foaming wheel and automatically gripping the hub. The cooperation between the long groove 21 and the movable groove 111 ensures that the movement trajectory of the swing rod 54 and the support plate structure 55 avoids interference with the mounting plane and the mounting platform 11, ensuring smooth and unobstructed mechanical action.

[0030] In a preferred embodiment, a pressure jig is provided on the mounting platform 11 to prevent the wheel hub from axially running. The pressure jig can be a positioning device mounted above the mounting platform 11, specifically a clamping structure with elastic blocks. A cylinder drives the blocks to press down on the top edge of the wheel hub or act on the central area, creating a vertical constraint force. Preventing axial running means limiting the wheel hub's displacement in the direction perpendicular to the mounting platform 11, which can be achieved using a limiting mechanism with a positioning pin. The positioning pin is inserted into the center hole of the wheel hub to form axial positioning, while the elastic blocks apply downward pressure to counteract the vibration generated by the lifting action. After the foaming wheel completes its clamping action, the pressure jig resets with the cylinder, releasing the constraint. At this point, the wheel hub and foaming wheel are in a stable assembled state. This effectively solves the problem of axial displacement of the wheel hub caused by the rebound of the elastic foaming wheel or external forces during assembly, ensuring that the relative position of the wheel hub and foaming wheel always meets the preset accuracy requirements, thereby improving assembly efficiency and product consistency.

[0031] It should be understood that the above are only preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0032] The accompanying drawings used in the above description of the embodiments only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

Claims

1. An automatic foam wheel assembly machine, comprising a frame, wherein the frame is provided with a mounting surface suitable for placing wheel hubs and foam wheels, characterized in that, Also includes: A height-adjustable fixture assembly; wherein the fixture assembly includes a lifting device, a lifting body, and a support plate assembly disposed on the lifting body. The lifting device is adapted to drive the lifting body to move up and down along the frame. The support plate assembly includes a plurality of circumferentially arranged support wheel structures. The support wheel structures are adapted to move radially outward when the lifting body rises to open up the foaming wheel placed on the mounting platform, and can simultaneously retract below the mounting platform and move radially inward when the lifting body descends to disengage from the foaming wheel so that the foaming wheel automatically hugs the outer circumference of the hub under its own elasticity.

2. The automatic foaming wheel assembly machine according to claim 1, characterized in that, The support plate assembly includes a slide rail mounted on the upper surface of the lifting body, a slider with a support wheel structure slidably connected to the slide rail, and a lifting mechanism connected to the central shaft of the lifting body. The output end of the lifting mechanism is provided with a connecting block, and several swing rods are hinged on the connecting block. The other end of each swing rod is hinged to the slider. The lifting mechanism is adapted to drive the connecting block to rise so that the swing rods drive the slider to move radially outward along the slide rail, thereby causing the support wheel structure to open the foaming wheel.

3. The automatic foaming wheel assembly machine according to claim 2, characterized in that, The support wheel structure is an L-shaped support plate set on the slider, and several L-shaped support plates are evenly distributed around the circumference.

4. The automatic foaming wheel assembly machine according to claim 2, characterized in that, The lifting body includes an upper mounting plane and a lower mounting plane. A plurality of slide rails are evenly installed around the circumference in the upper mounting plane, and the lifting mechanism is disposed on the lower mounting plane.

5. The automatic foaming wheel assembly machine according to claim 1, characterized in that, The lifting device includes two first lifting cylinders connecting the frame and the lifting body, and a guide rail mechanism is provided between the lifting body and the frame.

6. The automatic foaming wheel assembly machine according to claim 2, characterized in that, The lifting mechanism includes a second lifting cylinder, and an extension rod is provided at the end of the output shaft of the second lifting cylinder. The extension rod is adapted to extend out of the mounting platform to install the wheel hub when the lifting body rises and the support plate assembly opens the foaming wheel.

7. The automatic foaming wheel assembly machine according to claim 4, characterized in that, The upper mounting surface is provided with several long slots to allow the swing rod to pass through, and the mounting platform is provided with several movable slots corresponding one-to-one with the slide rail to allow the support plate structure of the support plate assembly to pass through the mounting platform for movement.

8. The automatic foaming wheel assembly machine according to claim 1, characterized in that, The mounting platform is equipped with a hub-pressing fixture to prevent the hub from jumping axially.

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