A wheel hub runout repair and positioning mechanism

Abstract

This invention discloses a wheel hub runout repair and positioning mechanism, comprising: a tensioning screw, a floating disc, and a clamping nut; a spring seat is fixedly provided at the lower part of the tensioning screw, a spring cover is provided at the upper part of the tensioning screw, a spring is sleeved on the tensioning screw between the spring seat and the spring cover, a clamp body is sleeved around the spring, a floating disc is sleeved around the clamp body, a positioning seat is provided at the top of the clamp body, the tensioning screw passes through the positioning seat, and the clamping nut is located on the tensioning screw above the positioning seat; this solution has the characteristics of positioning the wheel hub, facilitating the repair of wheel hub runout.

Description

Technical Field

[0001] This invention relates to the field of wheel hub repair, and in particular to a wheel hub runout repair and positioning mechanism. Background Technology

[0002] As a primary running gear in automobiles, wheel hubs require high precision in their manufacturing to ensure passenger safety. During production, wheel hubs can sometimes experience runout due to impacts during mold making or handling, resulting in deformation and a non-circular cross-section. Furthermore, during vehicle operation, various impacts can cause scratches, abrasions, and other damage and deformation to the wheel hub surface, necessitating repair. Repairing wheel hubs requires securing them, and the common method involves clamping the hub with fixtures before repair. However, this method suffers from several drawbacks: it's difficult to monitor the repair progress and whether deformation has been corrected in real-time; and after repairing one area, the wheel hub needs to be moved to the next, leading to inefficiency. Therefore, there is an urgent need for a wheel hub runout repair and positioning mechanism to address these issues. Summary of the Invention

[0003] To achieve the above objectives, the inventors provide a wheel hub runout repair and positioning mechanism, comprising: a tensioning screw, a floating disc, and a clamping nut;

[0004] The lower part of the tensioning screw is fixedly provided with a spring seat, the upper part of the tensioning screw is provided with a spring cover, a spring is sleeved on the tensioning screw between the spring seat and the spring cover, a clamp body is sleeved on the periphery of the spring, a floating disc is sleeved on the periphery of the clamp body, a positioning seat is provided on the top of the clamp body, the tensioning screw passes through the positioning seat, and the clamping nut is located on the tensioning screw above the positioning seat.

[0005] As a preferred structure of the present invention, a connecting flange is also sleeved on the lower part of the tensioning screw, and the bottom end face of the clamp body is connected to the connecting flange.

[0006] As a preferred structure of the present invention, the floating disk includes a fixed sleeve, which is fixedly sleeved on the outer side wall of the clamp body, and a floating base is sleeved on the periphery of the clamp body below the fixed sleeve, and the floating base is floatingly connected to the fixed sleeve.

[0007] As a preferred structure of the present invention, the fixing sleeve is provided with a plurality of through holes, and guide rods are respectively provided in the through holes. The bottom end of the guide rod is connected to the floating base, and a floating spring is sleeved on the guide rod.

[0008] In a preferred embodiment of the present invention, the fixed sleeve is provided with a plurality of through holes, and guide rods are respectively provided in the through holes. The top end of the guide rod located above the fixed sleeve is provided with a first limiting nut. The guide rod passes through the floating base and its bottom end is provided with a second limiting nut. The floating spring is sleeved on the guide rod between the first limiting nut and the fixed sleeve, or on the guide rod between the fixed sleeve and the floating base, or on the guide rod between the floating base and the second limiting nut.

[0009] As a preferred structure of the present invention, the fixed sleeve is provided with a plurality of through holes, and guide rods are respectively provided in the through holes. The top end of the guide rod located above the fixed sleeve is provided with a first limiting nut. The guide rod passes through the floating base and its bottom end is provided with a second limiting nut. The guide rod located above the floating base is provided with a third limiting nut. The floating spring is sleeved on the guide rod between the first limiting nut and the fixed sleeve, or the floating spring is sleeved on the guide rod between the fixed sleeve and the floating base.

[0010] As a preferred structure of the present invention, the outer side wall of the clamp body is provided with a plurality of sliding grooves arranged along the length direction of the clamp body, and the inner side wall of the fixing sleeve is provided with a plurality of extensions adapted to the sliding grooves.

[0011] As a preferred structure of the present invention, a groove is provided at the center of the top end face of the positioning seat, an expansion sleeve base is provided in the groove, an expansion sleeve is provided on the expansion sleeve base, the upper part of the tensioning screw passes through the expansion sleeve base and the expansion sleeve in sequence, a fourth limiting nut is provided on the tensioning screw located above the expansion sleeve, and the clamping nut is located above the fourth limiting nut.

[0012] As a preferred structure of the present invention, an open pressure plate is provided on the tensioning screw below the clamping nut, and the open pressure plate is located close to the clamping nut.

[0013] In a preferred embodiment of the present invention, the positioning seat is fixedly connected to the spring cover, a bushing is fixedly provided at the axial center of the spring cover, and the tensioning screw is slidably connected to the bushing.

[0014] Unlike existing technologies, the above-mentioned technical solution achieves the following beneficial effects: The tensioning screw and spring configuration of this invention effectively ensure that after the tensioning screw is tightened, the spring has pre-stored elastic force. When the tensioning screw suddenly loses its tension, the spring can replace the tensioning screw to continue providing clamping force to the hub positioned on the floating plate. This prevents the hub from shifting on the floating plate due to the sudden loss of clamping force, thus avoiding damage to the hub from the repair tool. In addition, the floating plate configuration can effectively absorb tool vibration. The positioning seat and clamping nut configuration can effectively press the hub firmly onto the positioning seat and floating plate, achieving the function of hub positioning and avoiding hub shifting during the repair process, which could cause hub damage or failure to meet repair accuracy requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the wheel hub runout repair and positioning mechanism and the wheel hub assembly as described in the specific implementation method;

[0016] Figure 2 A perspective view of the wheel hub runout repair and positioning mechanism described in the specific implementation method;

[0017] Figure 3 This is a schematic diagram of the floating disk structure described in a specific implementation method;

[0018] Figure 4 This is a schematic diagram of the internal structure of the wheel hub runout repair and positioning mechanism described in a specific implementation method;

[0019] Figure 5 This is a cross-sectional view of the wheel hub runout repair and positioning mechanism described in the specific embodiment;

[0020] Figure 6 This is a cross-sectional view of the wheel hub runout repair and positioning mechanism and the wheel hub assembly structure described in the specific implementation method.

[0021] Explanation of reference numerals in the attached figures:

[0022] 101. Tensioning screw; 201. Spring seat; 202. Spring cover; 203. Bushing; 204. Spring; 301. Fixture body; 4. Floating disc; 401. Fixed sleeve; 402. Sliding groove; 403. Floating base; 404. Extension; 405. Guide rod; 406. First limit nut; 407. Second limit nut; 408. Third limit nut; 409. Floating spring; 501. Positioning seat; 502. Groove; 503. Expansion sleeve base; 504. Expansion sleeve; 505. Fourth limit nut; 601. Compression nut; 602. Opening pressure plate; 603. Connecting flange; 7. Hub. Detailed Implementation

[0023] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0024] like Figures 1 to 6 As shown, this embodiment provides a wheel hub runout repair and positioning mechanism, including: a tensioning screw 101, a floating disc, and a clamping nut;

[0025] A spring seat 201 is fixedly provided at the lower part of the tensioning screw 101, and a spring cover 202 is provided at the upper part of the tensioning screw 101. A spring 204 is sleeved on the tensioning screw between the spring seat 201 and the spring cover 202. A clamp body 301 is sleeved around the spring, and a floating disc 4 is sleeved around the clamp body 301. A positioning seat 501 is provided at the top of the clamp body 301, and the tensioning screw 101 passes through the positioning seat 501. A clamping nut 601 is located on the tensioning screw 101 above the positioning seat 501. In the specific implementation process of this embodiment, such as Figure 1 and Figure 6 As shown, when it is necessary to position and tighten the wheel hub 7, the wheel hub is first placed on the floating plate, with the bottom surface of the inner ring of the wheel hub in contact with the positioning seat. At this time, the wheel hub is pressed onto the positioning seat and the floating plate by tightening the nut. Then, it is connected to the bottom end of the tensioning screw by a hydraulic rod or tensioning device. In this embodiment, the hydraulic rod and tensioning device are mainly used to provide tension to the tensioning screw. They adopt existing technology and are not the structure required to solve the technical problem of this solution. By tightening the tensioning screw, the wheel hub is pressed and positioned under the tension of the tensioning screw and the pressure of the tightening nut. After positioning, the wheel hub can be repaired. During the repair process, the wheel hub can be rotated to repair the positioning mechanism, so that the wheel hub can be continuously repaired. When the hydraulic rod or tensioning device suddenly malfunctions, the tension of the tensioning screw suddenly breaks, and the gap between the clamping nut and the positioning seat suddenly increases, causing the hub to not be clamped. This results in the hub shifting off the floating plate. During the repair process, the sudden shift of the hub will cause a violent collision with the repair tool, posing a significant safety hazard and damaging both the repair tool and the hub. Therefore, in this embodiment, the spring can replace the tensioning screw to continue providing clamping force to the hub positioned on the floating plate, preventing the hub from shifting off the floating plate due to the sudden loss of clamping force. In this embodiment, a rectangular spring is used, but different types of springs can be used in different embodiments, without being limited to rectangular springs.

[0026] To achieve further precise positioning and clamping of the wheel hub, in some embodiments, such as Figure 2 and Figure 5As shown, the top end face of the positioning seat 501 has a groove 502 at the center of the shaft, and a sleeve base 503 is provided in the groove. A sleeve 504 is provided on the sleeve base 503. The upper part of the tensioning screw passes through the sleeve base and the sleeve in sequence. A fourth limiting nut 505 is provided on the tensioning screw above the sleeve, and a clamping nut 601 is provided above the fourth limiting nut 505. In this embodiment, the upper end face of the sleeve base 503 has a conical platform for expanding the sleeve 504. The sleeve 504 is adapted to the recess at the center of the bottom surface of the wheel hub. During the clamping process of the wheel hub 7, the sleeve base 503 is subjected to compressive force, which then compresses the sleeve 504 to expand it, thereby further positioning the center of the wheel hub and achieving the purpose of precise positioning of the wheel hub, improving the repair accuracy. In addition, as Figure 2 As shown, in different embodiments, an open pressure plate 602 is provided on the tensioning screw 101 below the clamping nut 601, and the open pressure plate is set close to the clamping nut; the setting of the open pressure plate 602 can adjust the distance between the clamping nut 601 and the positioning seat 501 as needed, so as to facilitate clamping and positioning of wheel hubs of different sizes.

[0027] In the above embodiments, the floating disc 4 not only provides support for the wheel hub 7, but also effectively absorbs blade vibration. For example... Figure 2 and Figure 3 As shown, in this embodiment, the floating disk 4 includes a fixed sleeve 401, which is fixedly sleeved on the outer side wall of the clamp body 301. A floating base 403 is sleeved on the periphery of the clamp body below the fixed sleeve, and the floating base 403 is floatingly connected to the fixed sleeve 401.

[0028] Specifically: such as Figure 3 and Figure 4 As shown, the fixed sleeve has several through holes, and guide rods are installed in the through holes respectively. The bottom end of the guide rod 405 is connected to the floating base, and a floating spring is sleeved on the guide rod 405. The floating spring provides floating force between the floating base and the fixed sleeve, so that after the hub is placed on the floating base, the floating base can float up and down, thereby absorbing the blade vibration.

[0029] In some embodiments, such as Figure 3 and Figure 4As shown, the fixed sleeve 401 has several through holes, and guide rods 405 are respectively provided in the through holes. The top end of the guide rod located above the fixed sleeve is provided with a first limiting nut 406. The guide rod 405 passes through the floating base 403, and its bottom end is provided with a second limiting nut 407. The floating spring 409 is sleeved on the guide rod between the first limiting nut 406 and the fixed sleeve, or on the guide rod 405 between the fixed sleeve 401 and the floating base 403, or on the guide rod 405 between the floating base 403 and the second limiting nut 407. In different embodiments, the fixed sleeve 401 has several through holes, each containing a guide rod 405. A first limiting nut 406 is located at the top end of the guide rod above the fixed sleeve. The guide rod 405 passes through the floating base 403, and a second limiting nut 407 is located at its bottom end. A third limiting nut 408 is located on the guide rod 405 above the floating base 403, used to fix the floating base. A floating spring 409 is sleeved on the guide rod between the first limiting nut and the fixed sleeve, or the floating spring 409 is sleeved on the guide rod between the fixed sleeve and the floating base. In this embodiment, as... Figure 4 and Figure 5 As shown, the floating spring 409 is sleeved on the guide rod 405 between the first limiting nut 406 and the fixed sleeve 401.

[0030] like Figure 3 and Figure 4 As shown, in this embodiment, a plurality of sliding grooves 402 are evenly distributed on the outer side wall of the clamp body along the length direction of the clamp body, and a plurality of extensions 404 adapted to the sliding grooves are provided on the inner side wall of the fixed sleeve. In this embodiment, the sliding grooves and extensions can be used to position the fixed sleeve, and the fixed position of the fixed sleeve can be adjusted as needed.

[0031] In the above embodiments, such as Figure 5 As shown, the positioning seat is fixedly connected to the spring cover to prevent gaps between the spring cover and the positioning seat, which could cause the wheel hub to fail to tighten. A bushing 203 is fixedly installed at the axis of the spring cover 202, and the tensioning screw 101 is slidably connected to the bushing 203, making the sliding between the tensioning screw and the spring cover smoother and preventing wear. A connecting flange 603 is also fitted on the lower part of the tensioning screw, and the bottom end face of the clamp body is connected to the connecting flange 603. The connecting flange 603 is provided to provide support for the clamp body and to facilitate the installation of the wheel hub runout repair positioning mechanism with other equipment, such as a robotic arm or a fixed platform.

[0032] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of the present invention, or equivalent structural or procedural transformations made using the content of the present invention's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection of the present invention.

Claims

1. A wheel hub runout repair and positioning mechanism, characterized in that, include: Tensioner screw, floating disc, and clamping nut; The lower part of the tensioning screw is fixedly provided with a spring seat, the upper part of the tensioning screw is provided with a spring cover, a spring is sleeved on the tensioning screw between the spring seat and the spring cover, a clamp body is sleeved on the periphery of the spring, a floating disc is sleeved on the periphery of the clamp body, a positioning seat is provided on the top of the clamp body, the tensioning screw passes through the positioning seat, and the clamping nut is located on the tensioning screw above the positioning seat; The floating disk includes a fixed sleeve, which is fixedly sleeved on the outer side wall of the clamp body. A floating base is sleeved on the periphery of the clamp body below the fixed sleeve, and the floating base is floatingly connected to the fixed sleeve. The fixed sleeve is provided with several through holes, and guide rods are provided in the through holes respectively. The top end of the guide rod located above the fixed sleeve is provided with a first limiting nut. The guide rod passes through the floating base and is provided with a second limiting nut at its bottom end. A third limiting nut is provided on the guide rod located above the floating base. The floating spring is sleeved on the guide rod between the first limiting nut and the fixed sleeve, or the floating spring is sleeved on the guide rod between the fixed sleeve and the floating base. The outer side wall of the clamp body is provided with several sliding grooves that are arranged along the length of the clamp body, and the inner side wall of the fixed sleeve is provided with several extensions that are adapted to the sliding grooves. The top end face of the positioning seat has a groove at the center of the shaft, and an expansion sleeve base is provided in the groove. An expansion sleeve is provided on the expansion sleeve base. The upper part of the tensioning screw passes through the expansion sleeve base and the expansion sleeve in sequence. A fourth limiting nut is provided on the tensioning screw above the expansion sleeve. The clamping nut is located above the fourth limiting nut. The upper end face of the expansion sleeve base has a conical platform for expanding the expansion sleeve. The expansion sleeve is designed to fit the recess at the center of the bottom surface of the wheel hub. The positioning seat is fixedly connected to the spring cover, and a bushing is fixedly provided at the axis of the spring cover. The tensioning screw is slidably connected to the bushing.

2. The wheel hub runout repair and positioning mechanism according to claim 1, characterized in that: The lower part of the tensioning screw is also fitted with a connecting flange, and the bottom end face of the clamp body is connected to the connecting flange.

3. The wheel hub runout repair and positioning mechanism according to claim 1 or 2, characterized in that: An open pressure plate is provided on the tensioning screw below the clamping nut, and the open pressure plate is located close to the clamping nut.

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