A hub positioning device for a model car

Abstract

The utility model discloses a wheel hub positioning device is installed to automobile model, including main frame, the main frame includes guide seat and top frame seat, the guide seat is two groups, and two groups of guide seat fixed mounting is in the both sides of top frame seat lower end surface, the guide seat on sliding installation has double -end mobile seat, and still install the pressure wheel subassembly on the inside surface of double -end mobile seat, the top frame seat middle part fixed mounting has the bracket, and the just above of bracket is provided with the pressure holding frame, the both sides of top frame seat still are provided with the movable frame of pressure holding frame installation. The cooperation of pressure wheel subassembly and pressure holding frame can position wheel hub from multiple directions, ensure the position accurate and faultless of wheel hub in the installation process, improve the installation quality of automobile model. Double -end mobile seat can slide on the guide seat, and the movable frame can be driven to go up and down under the drive of drive electric jar, so that the operation of device is more flexible and convenient, reduces the labor intensity of operating personnel.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub positioning and installation equipment, specifically a wheel hub positioning device for installing automobile models. Background Technology

[0002] In the automotive model manufacturing industry, wheel hubs are a key component, and their installation accuracy directly affects the overall simulation accuracy, structural stability, and appearance quality of the model. With the diversified development of the automotive model market, from static display models to dynamic remote-controlled models, and from scaled-down replicas of classic models to concept car model development, the requirements for wheel hub installation are becoming increasingly stringent. Not only must the mechanical performance parameters such as coaxiality and perpendicularity between the wheel hub and the chassis be guaranteed, but damage such as scratches and indentations on the wheel hub surface must also be avoided during installation.

[0003] Currently, the positioning and installation of car model wheels largely relies on traditional manual operations or simple tooling. In traditional manual installation, the operator must hold the wheel hub and align it with the frame's axle hole, simultaneously using tools such as wrenches to secure it. This method is entirely dependent on manual experience and is highly susceptible to wheel misalignment due to hand tremors or uneven force application, leading to problems such as track width deviation and rotational jamming, severely impacting the model's dynamic performance. While existing simple tooling provides some support, it generally suffers from limited functionality and poor adaptability. Most tooling is only designed for specific car model sizes and models; when changing the car model or wheel hub specifications, custom tooling must be created, increasing production costs and extending the production cycle.

[0004] Furthermore, the incompatibility of existing devices is also reflected in their ability to adapt to wheel hubs with special structures. With the increasing demand for personalized models, irregularly shaped wheel hubs (such as multi-spoke hubs and hollowed-out hubs) are being used more and more widely. These hubs have dispersed stress points and uneven surfaces, making it easy for the fixing claws of traditional tooling to interfere with the spokes, resulting in ineffective clamping and potential scratches on the spoke surface. For wheel hubs made of lightweight materials (such as ABS plastic and aluminum alloy), existing devices lack protective designs for the material properties, making it easy for the wheel hub to crack due to excessive clamping force. Utility Model Content

[0005] The purpose of this invention is to provide a wheel hub positioning device for mounting automobile models, aiming to improve the problem of ****.

[0006] This utility model is implemented as follows: A wheel hub positioning device for mounting a car model includes a main frame, which includes a guide seat and a top frame seat. There are two sets of guide seats, and the two sets of guide seats are fixedly installed on both sides of the lower end face of the top frame seat. A double-headed movable seat is slidably installed on the guide seat, and a pressure roller assembly is also installed on the inner side of the double-headed movable seat. A bracket is fixedly installed in the middle of the top frame seat, and a pressure holding frame is provided directly above the bracket. Movable frames for installing the pressure holding frames are also provided on both sides of the top frame seat. The movable frames are slidably connected to the top frame seat, and a drive cylinder for driving the movable frames to rise and fall is provided on the lower end face of the bracket.

[0007] Preferably, the top frame includes a frame plate and a vertical frame connected to the guide seat. The vertical frame is vertically installed on both sides of the lower end face of the frame plate and is fixedly connected to the frame plate.

[0008] Preferably, the dual-head movable seat includes a connecting plate and a vertical plate frame for mounting the pressure roller assembly. The vertical plate frame is vertically mounted on both sides of the upper surface of the connecting plate, and the vertical plate frame and the connecting plate are integrally formed.

[0009] Preferably, the lower end face of the connecting plate is provided with a guide slider that slides with the guide seat, the guide slider is integrally formed with the connecting plate, and a guide tube is fixedly installed on the inner side of the upright frame.

[0010] Preferably, the pressure roller assembly includes a transverse electric cylinder, a movable column, and a pressure ball. The transverse electric cylinder is fixedly installed on the outer side of the upright frame, the movable column is slidably installed in the guide tube, and one end of the movable column is connected to the output end of the transverse electric cylinder. The pressure ball is fixedly installed on the other end of the movable column.

[0011] Preferably, the pressure frame includes a transverse pressure bar and two sets of parallel outer connecting plates. The transverse pressure bar is evenly installed between the two sets of outer connecting plates and is fixedly connected to the outer connecting plates. Both ends of the outer connecting plates are provided with sleeves that are fitted onto the movable frame.

[0012] Preferably, the movable frame includes a cross base frame, vertical tubes, a cover, and a support spring. The vertical tubes are evenly fixed at the four corners of the cross base frame. The cover is fixedly installed at the head of the vertical tube. The support spring is sleeved on the vertical tube, and the upper and lower ends of the support spring are fixed to the cover and the sleeve, respectively.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This application, through the synergistic action of the pressure roller assembly and the pressure holding frame, can position the wheel hub from multiple directions, ensuring accurate positioning of the wheel hub during installation and improving the installation quality of the car model. The double-headed moving seat can slide on the guide seat, and the movable frame can be raised and lowered under the drive of the electric cylinder, making the operation of the device more flexible and convenient, and reducing the labor intensity of the operators. The pressure roller assembly and pressure holding frame can be adjusted according to different sizes and shapes of the car frame, making it suitable for positioning and installing wheel hubs of various types of car models, expanding the applicability of the device. The setting of the pressure holding ball and support spring can reduce damage to the surface of the wheel hub, ensuring the appearance quality and integrity of the wheel hub. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure in an embodiment of this utility model;

[0015] Figure 2 yes Figure 1 A front view of the device shown;

[0016] Figure 3 This is a perspective view of the main frame, cross base frame, and vertical tubes in an embodiment of this utility model.

[0017] Figure 4 This is a perspective view of the double-headed movable seat and pressure roller assembly in an embodiment of this utility model.

[0018] Figure 5 This is a perspective view of the pressure holder in an embodiment of this utility model.

[0019] In the diagram: 1. Main frame; 11. Guide seat; 12. Top frame seat; 121. Frame plate; 122. Vertical frame; 2. Double-headed moving seat; 21. Connecting plate; 211. Guide slider; 22. Vertical plate frame; 221. Guide tube; 3. Pressure roller assembly; 31. Horizontal electric cylinder; 32. Movable column; 33. Pressure holding ball; 4. Bracket; 40. Drive electric cylinder; 5. Pressure holding frame; 51. Horizontal pressure rod; 52. Outer connecting plate; 521. Sleeve; 6. Movable frame; 61. Cross base frame; 62. Vertical tube; 63. Cover; 64. Support spring. Detailed Implementation

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0022] Reference Figure 1 , Figure 2 and Figure 3As shown, a wheel hub positioning device for mounting a car model includes a main frame 1. The main frame 1 includes guide seats 11 and a top frame seat 12. Two sets of guide seats 11 are fixedly mounted on both sides of the lower end face of the top frame seat 12. A double-headed movable seat 2 is slidably mounted on the guide seats 11, and a pressure roller assembly 3 is also mounted on the inner side of the double-headed movable seat 2. A bracket 4 is fixedly mounted in the middle of the top frame seat 12, and a pressure holding frame 5 is positioned directly above the bracket 4. Movable frames 6 for mounting the pressure holding frames 5 are also provided on both sides of the top frame seat 12. The movable frames 6 are slidably connected to the top frame seat 12, and a drive cylinder 40 for driving the movable frames 6 to rise and fall is provided on the lower end face of the bracket 4. The main frame 1 serves as the foundation of the entire device, and the guide seats 11 and the top frame seat 12 provide the mounting base and support for other components. The double-headed movable seat 2 can slide on the guide seats 11 for easy position adjustment, and the pressure roller assembly 3 is used for side positioning and fixing of the wheel hub. The bracket 4 is used to hold the vehicle frame, facilitating the positioning and installation of the wheel hub. The bracket 4 is welded from steel plate with a thickness of 8mm, capable of bearing the weight of the wheel hub. The transverse pressure bar 51 and outer connecting plate 52 of the clamping frame 5 are both made of aluminum alloy profiles, specifically 4040 aluminum profiles, characterized by their light weight and high strength. Driven by the electric cylinder 40, the clamping frame 5 can position and fix the vehicle frame vertically, facilitating stable installation of the wheel hub and improving positioning accuracy and stability. The double-headed moving seat 2 works in conjunction with the pressure roller assembly 3 to achieve symmetrical clamping of the wheel hub, avoiding skewness caused by unilateral force application. The bracket 4 and clamping frame 5 work together to form a three-dimensional positioning space, and the electric cylinder 40 controls the lifting and lowering, ensuring the stability of the vehicle frame during wheel hub installation. The electric cylinder 40 can be a PLS series servo electric cylinder, which features high precision, high speed, and high reliability, enabling precise control of the lifting and lowering of the movable frame 6. The movable frame 6 is slidably connected to the top frame seat 12. The top frame 12 includes a frame plate 121 and a vertical frame 122 connected to the guide seat 11. The vertical frame 122 is vertically installed on both sides of the lower end face of the frame plate 121 and is fixedly connected to the frame plate 121. By designing the top frame 12 as a structure in which the frame plate 121 and the vertical frame 122 cooperate, the structure of the top frame 12 is more stable and can better withstand various forces during the operation of the device, ensuring the reliability and durability of the device. At the same time, the connection between the vertical frame 122 and the guide seat 11 further enhances the overall stability of the main frame 1. The integrated design of the frame plate 121 and the vertical frame 122 improves the overall rigidity. The carbon fiber frame plate 121 maintains a bending strength of ≥500MPa while reducing weight by 30%. The widened bottom design of the vertical frame 122 increases the contact area with the guide seat 11, effectively suppressing positioning deviations caused by vibration. The guide seat 11 is made of high-strength aluminum alloy material, and the model can be 6061 aluminum alloy, which has good strength and corrosion resistance.The frame plate 121 of the top frame base 12 is made of steel plate with a thickness of 10mm, and the vertical frame 122 is made of channel steel, specifically No. 10 channel steel. The vertical frame 122 and the frame plate 121 are fixedly connected by welding to improve the overall strength of the top frame base 12.

[0023] Reference Figure 4 As shown, the double-headed movable seat 2 includes a connecting plate 21 and a vertical frame 22 for mounting the pressure roller assembly 3. The vertical frame 22 is vertically mounted on both sides of the upper surface of the connecting plate 21, and the vertical frame 22 is integrally formed with the connecting plate 21. By designing the double-headed movable seat 2 as an integrally formed unit of the connecting plate 21 and the vertical frame 22, not only is the overall strength of the double-headed movable seat 2 improved, but it is also easier to process and manufacture. The vertical frame 22 provides a suitable position for the installation of the pressure roller assembly 3, ensuring that the pressure roller assembly 3 can accurately position the wheel hub. A guide tube 221 is provided on the inner side of the vertical frame 22 to ensure the linear movement trajectory of the movable column 32 and to achieve higher lateral displacement repeatability positioning accuracy. A guide slider 211 is provided on the lower end surface of the connecting plate 21, which slides and engages with the guide seat 11. The guide slider 211 is integrally formed with the connecting plate 21, and the guide tube 221 is fixedly installed on the inner side of the vertical frame 22. The guide slider 211 on the lower end face of the connecting plate 21 slides in conjunction with the guide seat 11, making the sliding of the double-headed moving seat 2 smoother, reducing frictional resistance, and improving the operational flexibility of the device. The guide tube 221 on the inner side of the upright frame 22 provides guidance for the sliding of the movable column 32, ensuring the action accuracy of the pressure roller assembly 3. The guide slider 211 cooperates with the THK guide rail to make the sliding friction coefficient of the double-headed moving seat 2 low, effectively reducing the pushing resistance. The guide tube 221 is made of chrome-plated stainless steel with an inner wall roughness Ra≤0.4μm, and works with a PTFE bushing to achieve silent sliding. The double-headed moving seat 2 includes the connecting plate 21 and the upright frame 22, both made of stainless steel, specifically 304 stainless steel, which has good corrosion resistance and strength. The guide slider 211 on the lower end face of the connecting plate 21 can be made of polytetrafluoroethylene, which has a low coefficient of friction and can ensure the smooth sliding of the double-headed moving seat 2. The guide tube 221 on the inner side of the upright frame 22 is made of seamless steel pipe with a model of Φ20×2, which provides precise guidance for the sliding of the movable column 32.

[0024] Reference Figure 4As shown, the pressure roller assembly 3 includes a transverse electric cylinder 31, a movable column 32, and a pressure ball 33. The transverse electric cylinder 31 is fixedly installed on the outer side of the upright frame 22. The movable column 32 is slidably installed in the guide tube 221, with one end of the movable column 32 connected to the output end of the transverse electric cylinder 31. The pressure ball 33 is fixedly installed on the other end of the movable column 32. The pressure roller assembly 3 drives the movable column 32 to slide in the guide tube 221 via the transverse electric cylinder 31, thereby driving the pressure ball 33 to press and position the wheel hub. This design can be flexibly adjusted according to different wheel hub sizes and shapes, improving the versatility and adaptability of the device. At the same time, the setting of the pressure ball 33 can reduce damage to the wheel hub surface and ensure the appearance quality of the wheel hub. The transverse electric cylinder 31 drives the pressure ball 33 to perform micro-adjustment, with a minimum feed of 0.01mm, adapting to wheel hub bore diameters of 5-20cm. The elastic deformation of the polyurethane pressure ball 33 is controlled within 3%, which can adapt to the curvature of the wheel hub surface and provide stable clamping force. The transverse electric cylinder 31 of the pressure roller assembly 3 can be a DYTZ series electric push rod, which has the advantages of large thrust and adjustable stroke. The movable column 32 is made of solid steel bar with a diameter of 16mm and chrome-plated surface to improve wear resistance. The pressure ball 33 is made of rubber material with a Shore A60 hardness, which can reduce damage to the wheel hub surface.

[0025] Reference Figure 5 As shown, the pressure holding frame 5 includes a transverse pressure bar 51 and two sets of parallel outer connecting plates 52. The transverse pressure bar 51 is evenly installed between the two sets of outer connecting plates 52 and is fixedly connected to the outer connecting plates 52. Sleeves 521, which are fitted onto the movable frame 6, are provided at both ends of the outer connecting plates 52. The structural design of the transverse pressure bar 51 and outer connecting plates 52 of the pressure holding frame 5 can evenly apply pressure to the wheel hub, ensuring the accurate positioning of the wheel hub in the vertical direction. The sleeves 521 at both ends of the outer connecting plates 52 are fitted onto the movable frame 6, allowing the pressure holding frame 5 to move smoothly with the lifting and lowering of the movable frame 6. The array distribution of the transverse pressure bars 51 improves the uniformity of pressure, and the clearance fit between the sleeves 521 and the vertical tube 62 ensures that the vertical movement of the pressure holding frame 5 is unimpeded. The outer connecting plates 52 also adopt a hollow weight-reduction design, reducing inertia while ensuring rigidity. The sleeves 521 at both ends of the external connecting plate 52 are made of copper alloy material, model H62 brass, which has good wear resistance and can ensure smooth sliding of the pressure holder 5 on the movable frame 6.

[0026] Reference Figure 2 and Figure 3As shown, the movable frame 6 includes a cross base frame 61, a vertical tube 62, a cover 63, and a support spring 64. The vertical tube 62 is evenly fixed at the four corners of the cross base frame 61. The cover 63 is fixedly installed at the head of the vertical tube 62. The support spring 64 is sleeved on the vertical tube 62, and its upper and lower ends are fixed to the cover 63 and the sleeve 521, respectively. The combined design of the cross base frame 61, vertical tube 62, cover 63, and support spring 64 of the movable frame 6 provides elastic support for the holding frame 5. The support spring 64 can buffer the impact force on the wheel hub when the holding frame 5 descends, avoiding damage to the wheel hub. At the same time, the elasticity of the support spring 64 can also ensure that the holding frame 5 always maintains close contact with the wheel hub, improving the reliability of positioning. The cross base frame 61 of the movable frame 6 is welded from angle steel, with a model of 50×50×5 angle steel, and the vertical tube 62 is made of seamless steel pipe, with a model of Φ30×3. The cover 63 is made of plastic and has a certain degree of elasticity and cushioning. The support spring 64 is a cylindrical helical compression spring made of 65Mn spring steel, which can provide suitable elastic support.

[0027] Working principle:

[0028] In actual use, the car model's frame is placed on the bracket 4. The movable frame 6 is lowered by the drive cylinder 40, allowing the pressure frame 5 to initially position and fix the wheel hub. Then, the wheel hub is aligned and installed with the axle on the frame. Next, the position of the double-headed moving seat 2 is adjusted so that the pressure roller assembly 3 is aligned with the wheel hub. The lateral cylinder 31 is activated, causing the pressure ball 33 to laterally position and fix the wheel hub, thereby stably fixing the wheel hub to both ends of the axle.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wheel hub positioning device for mounting a car model, comprising a main frame (1), characterized in that, The main frame (1) includes a guide seat (11) and a top frame seat (12). There are two sets of guide seats (11), and the two sets of guide seats (11) are fixedly installed on both sides of the lower end face of the top frame seat (12). A double-headed moving seat (2) is slidably installed on the guide seat (11), and a pressure roller assembly (3) is also installed on the inner side of the double-headed moving seat (2). A bracket (4) is fixedly installed in the middle of the top frame seat (12), and a pressure holding frame (5) is provided directly above the bracket (4). Movable frames (6) for installing the pressure holding frame (5) are also provided on both sides of the top frame seat (12). The movable frame (6) is slidably connected to the top frame seat (12), and a drive electric cylinder (40) for driving the movable frame (6) to rise and fall is provided on the lower end face of the bracket (4).

2. The wheel hub positioning device for mounting a car model according to claim 1, characterized in that, The top frame seat (12) includes a frame plate (121) and a vertical frame (122) connected to the guide seat (11). The vertical frame (122) is vertically installed on both sides of the lower end face of the frame plate (121), and the vertical frame (122) is fixedly connected to the frame plate (121).

3. The wheel hub positioning device for mounting a car model according to claim 2, characterized in that, The dual-head movable seat (2) includes a connecting plate (21) and a vertical plate frame (22) for mounting the pressure roller assembly (3). The vertical plate frame (22) is vertically installed on both sides of the upper surface of the connecting plate (21), and the vertical plate frame (22) and the connecting plate (21) are integrally formed.

4. The wheel hub positioning device for mounting a car model according to claim 3, characterized in that, The lower end face of the connecting plate (21) is provided with a guide slider (211) that slides with the guide seat (11). The guide slider (211) is integrally formed with the connecting plate (21). A guide tube (221) is fixedly installed on the inner side of the upright frame (22).

5. A wheel hub positioning device for mounting a car model according to claim 4, characterized in that, The pressure roller assembly (3) includes a transverse electric cylinder (31), a movable column (32), and a pressure ball (33). The transverse electric cylinder (31) is fixedly installed on the outer side of the upright frame (22). The movable column (32) is slidably installed in the guide tube (221), and one end of the movable column (32) is connected to the output end of the transverse electric cylinder (31). The pressure ball (33) is fixedly installed on the other end of the movable column (32).

6. A wheel hub positioning device for mounting a car model according to claim 5, characterized in that, The pressure frame (5) includes a transverse pressure bar (51) and two sets of parallel outer connecting plates (52). The transverse pressure bar (51) is evenly installed between the two sets of outer connecting plates (52), and the transverse pressure bar (51) is fixedly connected to the outer connecting plate (52). Both ends of the outer connecting plate (52) are provided with sleeves (521) that are sleeved on the movable frame (6).

7. A wheel hub positioning device for mounting a car model according to claim 6, characterized in that, The movable frame (6) includes a cross base frame (61), a vertical tube (62), a cover (63), and a support spring (64). The vertical tube (62) is evenly fixed at the four corners of the cross base frame (61). The cover (63) is fixedly installed at the head of the vertical tube (62). The support spring (64) is sleeved on the vertical tube (62), and the upper and lower ends of the support spring (64) are fixed to the cover (63) and the sleeve (521), respectively.

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