Guide rail structure and hub clamping equipment

By adopting a guide rail structure in the hub clamping equipment, the guide cavity and guide structure are used to realize the directional movement of the jaw assembly, the existing equipment is solved, and the operation convenience and light weight of the equipment are improved. .

CN222458090UActive Publication Date: 2025-02-11SHENZHEN YIJIAN INTELLIGENT MANUFACTURING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421322898.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-02-11
Estimated Expiration
2034-06-11

AI Technical Summary

Technical Problem

The existing wheel hub clamping equipment occupies a lot of space, making it inconvenient for operators to use.

Method used

A guide rail structure is adopted, wherein the guide assembly is provided with a guide cavity, and the driving assembly is contained in the guide cavity, and the movement of the jaw assembly is guided through the guide structure, and the directional movement of the jaw assembly is realized through the threaded shaft body and the knob.

Benefits of technology

The space occupied by the guide rail structure is reduced, the operation convenience of the hub clamping device is improved, and the weight is lighter, and the possibility of misrevolution is reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222458090U_ABST
    Figure CN222458090U_ABST
Patent Text Reader

Abstract

The utility model provides a guide rail structure and hub clamping equipment. The guide rail structure comprises a guide assembly and a driving assembly. The guide assembly is used for being in sliding connection with the clamping jaw assembly, and a guide cavity is formed in the guide assembly; the driving assembly is arranged in the guide cavity and used for being connected with the clamping jaw assembly. The driving assembly is used for driving the clamping jaw assembly to move relative to the guide assembly. According to the technical scheme, the guide assembly is provided with the guide cavity, the driving assembly is contained in the guide cavity, the integration degree of the guide rail structure is improved, the occupied space of the guide rail structure is reduced, the size of the hub clamping device provided with the guide rail structure is reduced, and the operation convenience degree of the hub clamping device is improved; in addition, the guide assembly is provided with the guide cavity, so that the guide assembly is of a hollow structure, the weight of the guide assembly is reduced, and the guide rail structure is light.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and more specifically to a guide rail structure and a wheel hub clamping device. Background Art

[0002] With the development of science and technology and economy in my country, the number of cars owned by residents is growing rapidly, and the detection technology for cars is also developing continuously. As an important part of vehicle detection, the detection of car wheel alignment parameters has a significant impact on the safety of the whole vehicle. If the wheel alignment parameters are abnormal, it will lead to a series of economic and safety problems such as abnormal wear of car tires, driving deviation, wheel vibration, heavy steering, increased fuel consumption, etc., which directly affect the driving safety and daily use of the car.

[0003] At present, when performing four-wheel alignment detection operations, the wheel hub clamping equipment on the market needs to set an auxiliary calibration tool (such as a target) on the tire hub, and obtain the tire positioning information by acquiring the information of the auxiliary calibration tool; however, the existing wheel hub clamping device for fixing the auxiliary calibration tool has the disadvantages of occupying a large space and being inconvenient for operators to use. Utility Model Content

[0004] The utility model aims to provide a guide rail structure and a wheel hub clamping device to solve the technical problems in the prior art that the wheel hub clamping device occupies a large space and is inconvenient for operators to use.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] In a first aspect, a guide rail structure is provided, comprising:

[0007] A guide assembly and a drive assembly; the guide assembly is used for sliding connection with the clamping jaw assembly, and a guide cavity is provided inside the guide assembly; the drive assembly is arranged in the guide cavity and is used for connecting with the clamping jaw assembly, and the drive assembly is used for driving the clamping jaw assembly to move relative to the guide assembly.

[0008] By adopting the above technical solution, the guide assembly is provided with a guide cavity, and the drive assembly is accommodated in the guide cavity, which improves the integration level of the guide rail structure, reduces the space occupied by the guide rail structure, reduces the volume of the wheel hub clamping device equipped with the guide rail structure, and improves the operating convenience of the wheel hub value device; in addition, since the guide assembly is provided with a guide cavity, the guide assembly is a hollow structure, which also reduces the weight of the guide assembly and makes the guide rail structure lightweight.

[0009] In one embodiment, the guide assembly includes a guide cylinder and a guide structure arranged on the outer wall of the guide cylinder, the guide cavity is arranged inside the guide cylinder, the length direction of the guide structure is parallel to the axial direction of the guide cylinder, and the guide structure is slidably matched with the jaw assembly to limit the rotation of the jaw assembly around the axis of the guide cylinder.

[0010] By adopting the above technical solution, the guide structure can guide the jaw assembly to move along the axial direction of the guide cylinder, and at the same time can limit the rotation of the jaw assembly around the axis of the guide cylinder, so that the jaw assembly moves in a directional manner and the possibility of misrotation is reduced.

[0011] In one embodiment, the guide structure is a guide strip protruding from the outer wall of the guide tube, and the protruding direction of the guide strip is perpendicular to the axial direction of the guide tube; or, the guide structure is a guide groove concavely provided on the outer wall of the guide tube; the concave direction of the guide groove is perpendicular to the axial direction of the guide tube.

[0012] By adopting the above technical solution, the guiding function of the guiding structure is achieved.

[0013] In one embodiment, the guide cylinder is an aluminum alloy cylinder or a magnesium alloy cylinder; the guide bar is a stainless steel bar.

[0014] By adopting the above technical solution, both the weight and the mechanical strength of the guide component are taken into consideration.

[0015] In one embodiment, the guide assembly further comprises a scale structure provided on the outer wall of the guide cylinder, and the scale structure is used to calibrate the position of the clamping jaw assembly in the guide assembly.

[0016] By adopting the above technical solution, the use convenience of the wheel hub clamping device is improved.

[0017] In one embodiment, the guide cylinder is provided with a connecting groove connected to the guide cavity, the length direction of the connecting groove is parallel to the axial direction of the guide cylinder, and the connecting groove is used to expose the driving assembly so that the jaw assembly can pass through the connecting groove to connect with the driving assembly.

[0018] By adopting the above technical solution, the connecting groove can expose the driving assembly, which is convenient for connecting the clamping jaw assembly with the driving assembly, and also convenient for maintenance personnel to repair the driving assembly.

[0019] In one embodiment, the driving assembly includes a threaded shaft body disposed in the guide cavity, and the threaded shaft body is used for threaded connection with the clamping jaw assembly.

[0020] By adopting the above technical solution, the rotation of the threaded shaft can be converted into the linear movement of the clamping jaw assembly, and its transmission method is reliable, so that the driving method of the driving assembly is highly stable.

[0021] In one embodiment, the driving assembly further comprises a knob connected to the threaded shaft, wherein the knob is disposed on the guide assembly and is used to drive the threaded shaft to rotate around an axis, and the threaded shaft drives the clamping jaw assembly to move along the axial direction of the threaded shaft.

[0022] By adopting the above technical solution, it is convenient for operators to manually adjust the position of the clamping jaw assembly on the guide assembly.

[0023] In one embodiment, the driving assembly further includes a first cover plate and a second cover plate connecting the threaded shaft and the guide cylinder, the first cover plate is arranged at the top of the guide cylinder, and the second cover plate is arranged at the bottom of the guide cylinder.

[0024] By adopting the above technical solution, the threaded shaft body and the guide cylinder are connected at intervals, which reduces the interference between the threaded shaft body and the cylinder wall in the guide cylinder and causes rotation failure.

[0025] In one embodiment, the first cover plate is provided with a handle.

[0026] By adopting the above technical solution, the handle is located at the top of the guide cylinder, which is convenient for the operator to move the wheel hub clamping device.

[0027] In a second aspect, a wheel hub clamping device is provided, comprising a clamping jaw assembly and the above-mentioned guide rail structure, wherein the clamping jaw assembly is connected to the guide rail structure.

[0028] By adopting the above technical solution, on the basis of having the advantages of the guide rail structure of the above embodiment, the wheel hub clamping device of this embodiment also has the advantage of light weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a three-dimensional structural diagram of the wheel hub clamping device of the wheel hub clamping equipment provided by an embodiment of the utility model.

[0031] Figure 2 It is a three-dimensional structural diagram from one perspective of the guide rail structure provided by an embodiment of the utility model.

[0032] Figure 3 It is an exploded view of the guide rail structure provided in the embodiment of the utility model.

[0033] Figure 4 It is a three-dimensional structural diagram from another perspective of the guide rail structure provided by an embodiment of the utility model.

[0034] The reference numerals in the figures are:

[0035] 1. Guide assembly; 2. Drive assembly; 3. Gripper assembly;

[0036] 11. Guide cavity; 12. Guide cylinder; 13. Guide structure; 14. Connecting groove; 21. Threaded shaft; 22. Knob; 15. First cover plate; 16. Second cover plate; 17. Handle piece. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, and do not indicate that a device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The following is a more detailed description of the specific implementation of the present utility model in conjunction with specific embodiments:

[0041] like Figures 1 to 3As shown, a guide rail structure provided by an embodiment of the utility model is applied to a wheel hub clamping device; specifically, the wheel hub clamping device includes a wheel hub clamping device, the wheel hub clamping device is used to fix an auxiliary calibration tool (such as a target), the wheel hub clamping device includes a clamping jaw assembly 3 and a guide rail structure, the clamping jaw assembly 3 can be clamped on the wheel hub, and the clamping jaw assembly 3 can move on the guide rail structure to adapt to the wheel hub of tires of different sizes, thereby realizing the four-wheel alignment detection operation of tires of different sizes; the guide rail structure of this embodiment has a compact structure and occupies a small space, so that the wheel hub clamping device equipped with the guide rail structure of this embodiment has the advantages of small size and convenient operation; the following is explained through specific implementation methods:

[0042] The guide rail structure of this embodiment includes: a guide component 1 and a drive component 2; the guide component 1 is used for sliding connection with the clamping jaw component 3, and a guide cavity 11 is provided inside the guide component 1; the drive component 2 is provided in the guide cavity 11 and is used for connecting with the clamping jaw component 3, and the drive component 2 is used to drive the clamping jaw component 3 to move relative to the guide component 1.

[0043] Here, it can be understood that the guide assembly 1 refers to an assembly for guiding the clamping jaw assembly 3; a guide cavity 11 is provided inside the guide assembly 1, and the guide cavity 11 refers to a cavity for accommodating the driving assembly 2 and for guiding the clamping jaw assembly 3;

[0044] The driving component 2 refers to a power component used to provide the jaw assembly 3 with a movement on the guide component 1; the driving component 2 is arranged in the guide cavity 11, and the driving component 2 is used to connect with the jaw assembly 3, so that the driving component 2 can drive the jaw assembly 3 to move relative to the guide assembly 1 in the guide cavity 11.

[0045] The working principle of the guide rail structure provided in this embodiment is as follows:

[0046] The clamping jaw assembly 3 is mounted on the guide rail structure, wherein the clamping jaw assembly 3 is slidably connected to the guide assembly 1, that is, the clamping jaw assembly 3 can move relative to the guide assembly 1. At the same time, the clamping jaw assembly 3 is connected to the driving assembly 2 in the guide assembly 1, and the driving assembly 2 drives the clamping jaw assembly 3 to move relative to the guide assembly 1 in the guide cavity 11, thereby enabling the clamping jaw assembly 3 to adjust its own position according to the size of the wheel hub, so that the clamping jaw assembly 3 can adapt to different tires.

[0047] By adopting the above technical solution, the guide assembly 1 is provided with a guide cavity 11, and the drive assembly 2 is accommodated in the guide cavity 11, which improves the integration level of the guide rail structure, reduces the space occupied by the guide rail structure, reduces the volume of the hub clamping device equipped with the guide rail structure, and improves the operating convenience of the hub value device; in addition, since the guide assembly 1 is provided with the guide cavity 11, the guide assembly 1 is a hollow structure, which also reduces the weight of the guide assembly 1 and makes the guide rail structure lightweight.

[0048] Please also read Figure 4 In one embodiment, the guide assembly 1 includes a guide cylinder 12 and a guide structure 13 arranged on the outer wall of the guide cylinder 12. A guide cavity 11 is arranged inside the guide cylinder 12. The length direction of the guide structure 13 is parallel to the axial direction of the guide cylinder 12. The guide structure 13 slides with the clamping jaw assembly 3 to limit the rotation of the clamping jaw assembly 3 around the axis of the guide cylinder 12.

[0049] Here, it can be understood that the guide cylinder 12 refers to a cylinder for forming the guide cavity 11; the guide cylinder 12 has an axial direction, and the clamping jaw assembly 3 is used to move along the axial direction of the guide cylinder 12;

[0050] The guide structure 13 refers to a structure for guiding the moving direction of the clamping jaw assembly 3; the guide structure 13 is arranged on the outer wall of the guide cylinder 12, and the length direction of the guide structure 13 is parallel to the axial direction of the guide cylinder 12, so that the guide structure 13 guides the clamping jaw assembly 3 to move along the axial direction of the guide cylinder 12, and at the same time, the guide structure 13 limits the rotation of the clamping jaw assembly 3 around the axis of the guide cylinder 12.

[0051] Optionally, there are multiple guide structures 13, which are arranged in parallel and spaced apart on the outer wall of the guide cylinder 12, and the multiple guide structures 13 jointly limit the axial rotation of the clamping jaw assembly 3; preferably, there are three guide structures 13, which are arranged in parallel and spaced apart on the outer wall of the guide cylinder 12.

[0052] By adopting the above technical solution, the guide structure 13 can guide the jaw assembly 3 to move along the axial direction of the guide cylinder 12, and at the same time can limit the rotation of the jaw assembly 3 around the axis of the guide cylinder 12, so that the jaw assembly 3 moves in a directional manner and reduces the possibility of misrotation.

[0053] In one embodiment, the guide structure 13 is a guide bar protruding from the outer wall of the guide cylinder 12, and the protruding direction of the guide bar is perpendicular to the axial direction of the guide cylinder 12; or, the guide structure 13 is a guide groove concavely provided on the outer wall of the guide cylinder 12; the concave direction of the guide groove is perpendicular to the axial direction of the guide cylinder 12.

[0054] Here, it can be understood that when the guide structure 13 is a guide bar, the clamping jaw assembly 3 is provided with a guide groove corresponding to the guide bar, and the concave-convex clearance of the guide bar and the guide groove cooperates so that the guide bar limits the movement of the guide groove; when the guide structure 13 is a guide groove, the clamping jaw assembly 3 is provided with a guide bar corresponding to the guide groove, and the concave-convex clearance of the guide bar and the guide groove cooperates so that the guide bar limits the movement of the guide groove.

[0055] By adopting the above technical solution, the guiding function of the guiding structure 13 is achieved.

[0056] In one embodiment, the guide cylinder 12 is an aluminum alloy cylinder or a magnesium alloy cylinder; the guide bar is a stainless steel bar.

[0057] Here, it can be understood that the guide cylinder 12 is a cylindrical structure, and the guide cylinder 12 is made of aluminum alloy or magnesium alloy, which can reduce the weight of the guide cylinder 12; in addition, the guide bar is made of stainless steel, which has high mechanical strength. The guide bar is arranged on the outer wall of the guide cylinder 12, which can enhance the mechanical strength of the guide assembly 1 while ensuring that no excessive weight is added.

[0058] By adopting the above technical solution, both the weight and the mechanical strength of the guide assembly 1 are taken into consideration.

[0059] In one embodiment, the guide assembly 1 further comprises a scale structure disposed on the outer wall of the guide cylinder 12 , and the scale structure is used to calibrate the position of the clamping jaw assembly 3 in the guide assembly 1 .

[0060] Here, it can be understood that the scale structure refers to the marks indicating the size of the value on the outer wall of the guide cylinder 12, and the scale structure is also a ruler structure; when the jaw assembly 3 moves on the guide assembly 1, the scale structure can indicate whether the jaw assembly 3 has reached the target position.

[0061] Specifically, the scale structures are arranged in sequence along the length direction of the guide tube 12 .

[0062] By adopting the above technical solution, the use convenience of the wheel hub clamping device is improved.

[0063] In one embodiment, the guide cylinder 12 is provided with a connecting groove 14 connected to the guide cavity 11, and the length direction of the connecting groove 14 is parallel to the axial direction of the guide cylinder 12. The connecting groove 14 is used to expose the driving assembly 2 so that the clamping jaw assembly 3 can pass through the connecting groove 14 to connect with the driving assembly 2.

[0064] Here, it can be understood that the connecting groove 14 refers to a groove structure connected to the guide cavity 11; the connecting groove 14 is opened on the wall of the guide cylinder 12, and the length direction of the connecting groove 14 is parallel to the axial direction of the guide cylinder 12. Since the connecting groove 14 is connected to the guide cavity 11, the connecting groove 14 can expose the driving component 2 located in the guide cavity 11, and at the same time, the jaw assembly 3 located outside the guide cylinder 12 can pass through the connecting groove 14 to connect with the driving component 2.

[0065] By adopting the above technical solution, the connecting groove 14 can expose the driving assembly 2, which is convenient for the connection between the clamping jaw assembly 3 and the driving assembly 2, and also convenient for maintenance personnel to repair the driving assembly 2.

[0066] In one embodiment, the driving assembly 2 includes a threaded shaft 21 disposed in the guide cavity 11 , and the threaded shaft 21 is used for threaded connection with the clamping jaw assembly 3 .

[0067] Here, it can be understood that the clamping jaw assembly 3 is provided with a sliding block threadedly connected to the threaded shaft body 21, the sliding block is provided with a threaded hole, and the threaded shaft body 21 is inserted into the threaded hole.

[0068] Specifically, when the threaded shaft body 21 rotates around the axis, the threaded shaft body 21 drives the clamping jaw assembly 3 to move along the axial direction of the guide assembly 1 when the clamping jaw assembly 3 is limited by the guide assembly 1 .

[0069] By adopting the above technical solution, the rotation of the threaded shaft 21 can be converted into the linear movement of the clamping jaw assembly 3, and its transmission method is reliable, so that the driving method of the driving assembly 2 is highly stable.

[0070] In one embodiment, the driving assembly 2 also includes a knob 22 connected to the threaded shaft 21. The knob 22 is arranged on the guide assembly 1. The knob 22 is used to drive the threaded shaft 21 to rotate around the axis, and the threaded shaft 21 drives the clamping jaw assembly 3 to move along the axial direction of the threaded shaft 21.

[0071] Here, it can be understood that the knob 22 refers to a component used to drive the threaded shaft 21 to rotate; the knob 22 is arranged on the guide assembly 1, specifically, the knob 22 is arranged on the top of the guide cylinder 12, the knob 22 is connected to the threaded shaft 21 and can drive the threaded shaft 21 to rotate around the axis.

[0072] By adopting the above technical solution, it is convenient for an operator to manually adjust the position of the clamping jaw assembly 3 on the guide assembly 1 .

[0073] In one embodiment, the driving assembly 2 further includes a first cover plate 15 and a second cover plate 16 connecting the threaded shaft 21 and the guide cylinder 12 . The first cover plate 15 is disposed on the top of the guide cylinder 12 , and the second cover plate 16 is disposed on the bottom of the guide cylinder 12 .

[0074] Here, it can be understood that the first cover plate 15 and the second cover plate 16 are used to close the guide cylinder 12 so that the guide cylinder 12 forms a guide cavity 11 , and the first cover plate 15 and the second cover plate 16 are used to connect the threaded shaft 21 and the guide cylinder 12 .

[0075] Specifically, the first cover plate 15 and the second cover plate 16 are used to connect the threaded shaft 21 and the guide cylinder 12, and at the same time make the threaded shaft 21 and the guide cylinder 12 fit with each other in a clearance manner, and there is a preset distance between the threaded shaft 21 and the inner cylinder wall of the guide cylinder 12, that is, the threaded shaft 21 can rotate freely in the guide cylinder 12.

[0076] By adopting the above technical solution, the threaded shaft body 21 is spaced apart from the guide cylinder 12 , thereby reducing the interference between the threaded shaft body 21 and the cylinder wall in the guide cylinder 12 and causing rotation failure.

[0077] In one embodiment, the first cover plate 15 is provided with a handle 17 .

[0078] Here, it can be understood that the handle piece 17 is formed on the first cover plate 15. Since the first cover plate 15 is located at the top of the guide cylinder 12, the handle piece 17 is also located at the top of the guide cylinder 12, so that the operator can lift the wheel hub clamping device without bending over, thereby improving the operator's usage experience.

[0079] By adopting the above technical solution, the handle is located at the top of the guide cylinder 12, which is convenient for the operator to move the wheel hub clamping device.

[0080] In a second aspect, a wheel hub clamping device is provided, comprising a clamping jaw assembly 3 and the above-mentioned guide rail structure, wherein the clamping jaw assembly 3 is connected to the guide rail structure.

[0081] By adopting the above technical solution, on the basis of having the advantages of the guide rail structure of the above embodiment, the wheel hub clamping device of this embodiment also has the advantage of light weight.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A guide rail structure, characterized in that: include: A guide assembly and a drive assembly; the guide assembly is used for sliding connection with the clamping jaw assembly, and a guide cavity is provided inside the guide assembly; the drive assembly is arranged in the guide cavity and is used for connecting with the clamping jaw assembly, and the drive assembly is used for driving the clamping jaw assembly to move relative to the guide assembly.

2. The guide rail structure according to claim 1, characterized in that: The guide assembly includes a guide cylinder and a guide structure arranged on the outer wall of the guide cylinder. The length direction of the guide structure is parallel to the axial direction of the guide cylinder. The guide structure slidably cooperates with the clamping jaw assembly to limit the rotation of the clamping jaw assembly around the axis of the guide cylinder.

3. The guide rail structure according to claim 2, characterized in that: The guide structure is a guide strip protruding from the outer wall of the guide tube, and the protruding direction of the guide strip is perpendicular to the axial direction of the guide tube; or, the guide structure is a guide groove concavely provided on the outer wall of the guide tube; the concave direction of the guide groove is perpendicular to the axial direction of the guide tube.

4. The guide rail structure according to claim 3, characterized in that: The guide cylinder is an aluminum alloy cylinder or a magnesium alloy cylinder; the guide bar is a stainless steel bar.

5. The guide rail structure according to claim 3, characterized in that: The guide assembly further comprises a scale structure arranged on the outer wall of the guide cylinder, and the scale structure is used to calibrate the position of the clamping jaw assembly on the guide assembly.

6. The guide rail structure according to claim 2, characterized in that: The guide cylinder is provided with a connecting groove connected with the guide cavity, the length direction of the connecting groove is parallel to the axial direction of the guide cylinder, and the connecting groove is used to expose the driving assembly so that the clamping jaw assembly can pass through the connecting groove and connect with the driving assembly.

7. The guide rail structure according to claim 1, characterized in that: The driving assembly includes a threaded shaft body arranged in the guide cavity, and the threaded shaft body is used for threaded connection with the clamping jaw assembly.

8. The guide rail structure according to claim 7, characterized in that: The driving assembly also includes a knob connected to the threaded shaft, the knob is arranged on the guide assembly, and the knob is used to drive the threaded shaft to rotate around the axis, and the threaded shaft drives the clamping jaw assembly to move along the axial direction of the threaded shaft.

9. The guide rail structure according to claim 7, characterized in that: The driving assembly further comprises a first cover plate and a second cover plate connecting the threaded shaft and the guide cylinder, wherein the first cover plate is arranged at the top of the guide cylinder, and the second cover plate is arranged at the bottom of the guide cylinder.

10. The guide rail structure according to claim 9, characterized in that: The first cover plate is provided with a handle.

11. A wheel hub clamping device, characterized in that: It comprises a clamping jaw assembly and a guide rail structure according to any one of claims 1 to 10, wherein the clamping jaw assembly is connected to the guide rail structure.