A device for clamping a steering knuckle of a vehicle

CN224780522UActive Publication Date: 2026-09-22SANGROOVE JIANGSU MACHINERY
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Patent Information

Application Number
CN202521956959.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-11
Publication Date
2026-09-22
Estimated Expiration
2035-09-11

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种汽车转向节夹持装置,通过旋转机构与夹持机构的设置,解决了现有的夹持装置,存在传统夹具通常针对单一型号转向节设计,无法适配不同尺寸或形状的转向节的问题

Benefits of technology

[0015]本实用新型具有以下有益效果。

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an automotive steering knuckle clamping device, relating to the technical field of workpiece clamping devices. The utility model includes a base frame, a rotating mechanism on top of the base frame, and a clamping mechanism on top of the rotating mechanism. The rotating mechanism includes a rotating box fixedly connected to the top of the base frame, a motor fixedly connected inside the rotating box, and a gear assembly on top of the motor. This utility model achieves multi-angle adjustment through the gear assembly of the rotating mechanism. The motor drives the drive gear to mesh and rotate the driven gear, causing the rotating rod and rotating plate to rotate synchronously, completing the angle adjustment of the steering knuckle. An electric push rod pushes the locking gear plate to mesh with the driven gear to achieve rigid locking. This design, through the synergistic effect of mechanical transmission and electric locking, effectively solves the problem of difficult angle adjustment in traditional clamps, ensuring the positioning accuracy and stability of the steering knuckle during processing, and significantly improving processing efficiency and quality.
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Description

Technical Field

[0001] This utility model belongs to the technical field of workpiece clamping devices, and in particular relates to an automobile steering knuckle clamping device. Background Technology

[0002] The automotive steering knuckle is a key component of the automotive steering system, connecting the wheels and the suspension. It is responsible for transmitting steering force and supporting wheel rotation. Its machining accuracy directly affects the vehicle's handling and safety. The automotive steering knuckle clamping device is a special tooling used to fix the steering knuckle during machining, inspection, or assembly. It is necessary to ensure clamping stability and positioning accuracy to meet different process requirements.

[0003] Existing clamping devices still have some problems during use. For example, traditional clamps are usually designed for a single model of steering knuckle and cannot be adapted to steering knuckles of different sizes or shapes. This results in companies having to configure multiple sets of clamps, which is costly and takes up space. Some adjustable clamps are cumbersome to operate and affect production efficiency. Steering knuckles need to be protected from rotation or displacement during processing, but existing devices lack dynamic locking and flexible limit mechanisms, which can easily lead to processing errors.

[0004] To address these issues, we provide an automotive steering knuckle clamping device. Utility Model Content

[0005] The purpose of this utility model is to provide an automotive steering knuckle clamping device. By setting up a rotating mechanism and a clamping mechanism, it solves the problem that existing clamping devices are usually designed for a single type of steering knuckle and cannot be adapted to steering knuckles of different sizes or shapes.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to an automotive steering knuckle clamping device, comprising a base frame, a rotating mechanism on the top of the base frame, and a clamping mechanism on the top of the rotating mechanism. The rotating mechanism includes a rotating box fixedly connected to the top of the base frame, a motor fixedly connected inside the rotating box, a gear assembly on the top of the motor, a rotating rod movably connected inside the rotating box via bearings, and a rotating plate fixedly connected to the top of the rotating rod. The clamping mechanism includes a clamping box fixedly connected to the top of the rotating plate, a first sliding assembly inside the clamping box, a second sliding assembly on the front and rear sides of the clamping box, a ratchet on the top of the second sliding assembly, a clamping block fixedly connected to the top of the ratchet, and a limiting assembly on the top of the clamping box.

[0008] The present invention is further configured such that the gear assembly includes a drive gear fixedly connected to the output end of the motor and a driven gear meshing on the surface of the drive gear, and the rotating rod is fixedly connected inside the driven gear.

[0009] The present invention is further configured such that an electric push rod is fixedly connected to one side of the rotating box, and a locking tooth plate is fixedly connected to the output end of the electric push rod.

[0010] The present invention is further configured such that the first sliding assembly includes a first sliding groove formed on the front and rear sides of the clamping box, a first slide rod fixedly connected to the top of the first sliding groove, a first slider slidably connected to the surface of the first slide rod, and a first electromagnetic rod fixedly connected to the bottom of the first sliding groove.

[0011] The present invention is further configured such that a sliding through hole adapted to the first electromagnetic rod is provided inside the first slider, the first slider is made of a magnetic material, and the first electromagnetic rod is located inside the sliding through hole.

[0012] The present invention is further configured such that the number of the second sliding components is four, and the second sliding component includes a sliding box disposed on the front and rear sides of the clamping box, a second sliding groove opened inside the sliding box, a second sliding rod fixedly connected to the top of the second sliding groove, a second slider slidably connected to the surface of the second sliding rod, and a second electromagnetic rod fixedly connected to the bottom of the second sliding groove. The second slider has a movable through hole inside, and the second electromagnetic rod is located inside the movable through hole. The second slider is made of magnetic material.

[0013] The present invention is further configured such that a soft pad is fixedly connected to one side of the clamping block, and the number of the first sliding components is two.

[0014] The present invention is further configured such that the limiting component includes an assembly screw block threadedly connected inside the clamping box, a limiting rod fixedly connected to the top of the assembly screw block, and a limiting ring threadedly connected to the surface of the limiting rod.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model achieves multi-angle adjustment through the gear assembly of the rotating mechanism. The motor drives the drive gear to mesh and rotate the driven gear, so that the rotating rod and the rotating plate rotate synchronously to complete the angle adjustment of the steering knuckle. The electric push rod pushes the locking tooth plate to mesh with the driven gear to achieve rigid locking. This design effectively solves the problem of difficult angle adjustment of traditional fixtures through the synergistic effect of mechanical transmission and electric locking, ensuring the positioning accuracy and stability of the steering knuckle during the processing, and significantly improving processing efficiency and quality.

[0017] 2. This utility model achieves adaptive clamping through the first and second sliding components of the clamping mechanism. The first and second sliding components are adjusted and locked by the first and second electromagnetic rods, respectively. The clamping block clamps the steering knuckle from all sides. The ratchet design makes the clamping block adapt to the shape of the steering knuckle. The soft pad protects the surface of the workpiece. This structure effectively solves the problem of poor universality of traditional fixtures through multi-directional adjustment of electromagnetic locking. It can quickly adapt to the clamping requirements of different models of steering knuckles, and greatly reduce the changeover time and equipment cost.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of a car steering knuckle clamping device.

[0021] Figure 2 This is a cross-sectional view of a rotating box in an automotive steering knuckle clamping device.

[0022] Figure 3 This is a structural diagram of the limiting component in an automotive steering knuckle clamping device.

[0023] Figure 4 This is a cross-sectional view of a clamping box in an automotive steering knuckle clamping device.

[0024] Figure 5 This is a cross-sectional view of a sliding box in an automotive steering knuckle clamping device.

[0025] In the attached diagram: 1. Base frame; 2. Rotating mechanism; 21. Rotating box; 22. Motor; 23. Gear assembly; 231. Drive gear; 232. Driven gear; 24. Rotating rod; 25. Rotating plate; 3. Clamping mechanism; 31. Clamping box; 32. First sliding assembly; 321. First slide rod; 322. First slider; 323. First electromagnetic rod; 33. Second sliding assembly; 331. Sliding box; 332. Second slide rod; 333. Second slider; 334. Second electromagnetic rod; 34. Ratchet; 35. Clamping block; 36. Limiting assembly; 361. Assembly screw block; 362. Limiting rod; 363. Limiting ring; 4. Electric push rod; 5. Locking toothed plate; 6. Soft pad. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1 Please see Figures 1-5 This utility model is a car steering knuckle clamping device, including a base frame 1, a rotating mechanism 2 on the top of the base frame 1, and a clamping mechanism 3 on the top of the rotating mechanism 2. The rotating mechanism 2 includes a rotating box 21 fixedly connected to the top of the base frame 1, a motor 22 fixedly connected inside the rotating box 21, the motor 22 converting electromagnetic torque into mechanical rotational motion, which is existing technology and will not be described in detail here, and those skilled in the art can clearly understand its working principle. A gear assembly 23 is set on the top of the motor 22, a rotating rod 24 is movably connected to the inside of the rotating box 21 through a bearing, and a rotating plate 25 is fixedly connected to the top of the rotating rod 24. The clamping mechanism 3 includes a clamping box 31 fixedly connected to the top of the rotating plate 25, a first sliding assembly 32 set inside the clamping box 31, a second sliding assembly 33 set on the front and rear sides of the clamping box 31, a ratchet 34 set on the top of the second sliding assembly 33, a clamping block 35 fixedly connected to the top of the ratchet 34, and a limiting assembly 36 set on the top of the clamping box 31.

[0028] Specifically, through the setting of the rotating mechanism 2, after the motor 22 starts, the drive gear 231 at its output end drives the driven gear 232 to mesh and rotate, thereby driving the rotating rod 24 to rotate, and finally causing the top rotating plate 25 to rotate around the axis. After the angle of the rotating plate 25 is adjusted, the electric push rod 4 pushes the locking tooth plate 5 to mesh with the driven gear 232 to achieve rigid locking and prevent the steering knuckle from shifting during processing. This mechanism realizes multi-angle positioning of the steering knuckle and ensures processing stability. Through the setting of the clamping mechanism 3, the first slider 322 in the first sliding assembly 32 moves laterally on the surface of the first slide rod 321, and the first electric... The magnetic rod 323 controls the magnetic attraction of the first slider 322 to complete the fixation, driving the second sliding assembly 33 to adjust left and right as a whole; the second slider 333 in the second sliding assembly 33 slides on the surface of the second slider 332, and the second electromagnetic rod 334 magnetically attracts the second slider 333 to complete the fixation, so that the clamping block 35 at the top clamps the steering knuckle from all sides. The limiting assembly 36 constrains the steering knuckle from the top through the threaded connection of the limiting rod 362 and the limiting ring 363. The ratchet 34 design allows the clamping block 35 to adapt to the shape of the steering knuckle. The soft pad 6 protects the surface of the workpiece. This mechanism achieves multi-directional adjustment through electromagnetic fixation and is adapted to the precise fixation of different models of steering knuckles. Specific Implementation Example 2 Please see Figures 1-5 Based on the first specific embodiment, the gear assembly 23 includes a drive gear 231 fixedly connected to the output end of the motor 22, and a driven gear 232 meshing with the surface of the drive gear 231. A rotating rod 24 is fixedly connected inside the driven gear 232. An electric push rod 4 is fixedly connected to one side of the rotating box 21, and a locking tooth plate 5 is fixedly connected to the output end of the electric push rod 4. The first sliding assembly 32 includes a first sliding groove opened on the front and rear sides of the clamping box 31, a first slide rod 321 fixedly connected to the top of the first sliding groove, a first slider 322 slidably connected to the surface of the first slide rod 321, and a first electromagnetic rod 323 fixedly connected to the bottom of the first sliding groove. The first slider 322 has a sliding hole adapted to the first electromagnetic rod 323 inside. The material of the first slider 322 is a magnetic material. The first electromagnetic rod 323 is located inside the sliding hole. There are four second sliding assemblies 33. The second sliding assembly 33 includes a sliding rod arranged on the front and rear sides of the clamping box 31. The moving box 331 and the sliding box 331 are fixedly connected to one side of the first slider 322. A second sliding groove is opened inside the sliding box 331. A second sliding rod 332 is fixedly connected to the top of the second sliding groove. A second slider 333 is slidably connected to the surface of the second sliding rod 332. A second electromagnetic rod 334 is fixedly connected to the bottom of the second sliding groove. The electromagnetic rod generates an adsorption force when energized to achieve rigid fixation. This is existing technology and will not be described in detail here. Moreover, those skilled in the art can clearly understand the working principle. A movable through hole is opened inside the second slider 333. The second electromagnetic rod 334 is located inside the movable through hole. The material of the second slider 333 is a magnetic material. A soft pad 6 is fixedly connected to one side of the clamping block 35. There are two first sliding components 32. The limiting component 36 includes an assembly screw block 361 threadedly connected to the inside of the clamping box 31, a limiting rod 362 fixedly connected to the top of the assembly screw block 361, and a limiting ring 363 threadedly connected to the surface of the limiting rod 362.

[0030] Specifically, the gear assembly 23 transmits the power of the motor 22 to the rotating rod 24, which in turn drives the rotating rod 24 and the rotating plate 25 to rotate. The electric push rod 4 and the locking tooth plate 5 engage the locking tooth plate 5 with the driven gear 232 after rotation, preventing the rotating plate 25 from rotating again. The first sliding assembly 32 adjusts the left and right positions of the second sliding assembly 33, and the second sliding assembly 33 adjusts the front and rear positions of the clamping blocks 35, so that the four clamping blocks 35 can fix the steering knuckle placed on the top of the clamping box 31. The limit assembly 36, with its threaded connection, allows for easy replacement of limit rods 362 of different specifications, facilitating the use of different steering knuckle models.

[0031] The operation process of this embodiment is as follows: Screw the assembly screw 361 at the bottom of the limit rod 362 corresponding to the steering knuckle model into the clamping box 31, put the steering knuckle on the surface of the limit rod 362, and then screw the limit ring 363 on the surface of the limit rod 362 to complete the initial fixation of the steering knuckle. Then, adjust the position of the first sliding component 32 and the second sliding component 33 according to the steering knuckle model. The first slider 322 in the first sliding component 32 slides on the surface of the first slide rod 321. After pushing the sliding box 331 to the designated position, the first electromagnetic rod 323 is electromagnetically attracted to the first slider 322. Then, the second slider 333 in the second sliding component 33 slides on the surface of the second slide rod 332. Adjust the front and rear position of the clamping block 35 so that the soft pad 6 on one side of the clamping block 35 contacts the steering knuckle. At this time, the second electromagnetic rod 334 is electromagnetically attracted to the second slider 333. The ratchet 34 design allows the clamping block 35 to adapt to the shape of the steering knuckle. When the soft pad 6 on the clamping block 35 contacts the periphery of the steering knuckle, the fixation of the steering knuckle is completed.

[0032] When the angle of the steering knuckle needs to be adjusted, the motor 22 starts, and the drive gear 231 drives the driven gear 232 that meshes with it to rotate, thereby driving the rotating rod 24 and the rotating plate 25 to rotate synchronously. After the angle of the rotating plate 25 is adjusted, the electric push rod 4 pushes the locking tooth plate 5 to mesh with the driven gear 232 to achieve rigid locking and prevent the steering knuckle from shifting during the processing.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A car steering knuckle clamping device, comprising a base frame (1), characterized in that: The base frame (1) is provided with a rotating mechanism (2) at the top, and the rotating mechanism (2) is provided with a clamping mechanism (3) at the top. The rotating mechanism (2) includes a rotating box (21) fixedly connected to the top of the base frame (1), a motor (22) fixedly connected inside the rotating box (21), a gear assembly (23) set on the top of the motor (22), a rotating rod (24) movably connected inside the rotating box (21) via a bearing, and a rotating plate (25) fixedly connected to the top of the rotating rod (24). The clamping mechanism (3) includes a clamping box (31) fixedly connected to the top of the rotating plate (25), a first sliding assembly (32) disposed inside the clamping box (31), a second sliding assembly (33) disposed on the front and rear sides of the clamping box (31), a ratchet (34) disposed on the top of the second sliding assembly (33), a clamping block (35) fixedly connected to the top of the ratchet (34), and a limiting assembly (36) disposed on the top of the clamping box (31).

2. The automotive steering knuckle clamping device according to claim 1, characterized in that, The gear assembly (23) includes a drive gear (231) fixedly connected to the output end of the motor (22) and a driven gear (232) meshing on the surface of the drive gear (231), and the rotating rod (24) is fixedly connected inside the driven gear (232).

3. The automotive steering knuckle clamping device according to claim 1, characterized in that, An electric push rod (4) is fixedly connected to one side of the rotating box (21), and a locking tooth plate (5) is fixedly connected to the output end of the electric push rod (4).

4. The automotive steering knuckle clamping device according to claim 1, characterized in that, The first sliding assembly (32) includes a first sliding groove formed on the front and rear sides of the clamping box (31), a first slide rod (321) fixedly connected to the top of the first sliding groove, a first slider (322) slidably connected to the surface of the first slide rod (321), and a first electromagnetic rod (323) fixedly connected to the bottom of the first sliding groove.

5. The automotive steering knuckle clamping device according to claim 4, characterized in that, The first slider (322) has a sliding through hole that is compatible with the first electromagnetic rod (323). The first slider (322) is made of magnetic material, and the first electromagnetic rod (323) is located inside the sliding through hole.

6. The automotive steering knuckle clamping device according to claim 1, characterized in that, The number of the second sliding components (33) is four. The second sliding components (33) include a sliding box (331) disposed on the front and rear sides of the clamping box (31), a second sliding through groove opened inside the sliding box (331), a second sliding rod (332) fixedly connected to the top of the second sliding through groove, a second slider (333) slidably connected to the surface of the second sliding rod (332), and a second electromagnetic rod (334) fixedly connected to the bottom of the second sliding through groove. The second slider (333) has a movable through hole inside, and the second electromagnetic rod (334) is located inside the movable through hole. The material of the second slider (333) is a magnetic material.

7. The automotive steering knuckle clamping device according to claim 1, characterized in that, A soft pad (6) is fixedly connected to one side of the clamping block (35), and there are two first sliding components (32).

8. The automotive steering knuckle clamping device according to claim 1, characterized in that, The limiting assembly (36) includes an assembly screw block (361) threaded inside the clamping box (31), a limiting rod (362) fixedly connected to the top of the assembly screw block (361), and a limiting ring (363) threaded to the surface of the limiting rod (362).