Hydraulic clamping mechanism for parts in automobile front steering knuckle

Abstract

The invention discloses a hydraulic clamping mechanism for parts in an automobile front steering knuckle, the hydraulic clamping mechanism comprises a steering knuckle and a clamping press-fitting device, and the clamping press-fitting device comprises a hydraulic cylinder, a convex block, a clamping arm, a push block, a hydraulic rod, a fan-shaped push plate and an arc-shaped clamping block. The hydraulic cylinder drives the push block to move through the driving component, so that the clamping arms rotate around the hinge point to realize gathering or diffusion of the front end, and the arc-shaped clamping block is in clamping fit with the surface of the joint body; the hydraulic rod drives the fan-shaped push plate to move, and abutting limiting is formed on the transmission shaft half shaft. Multi-directional positioning of the steering knuckle part is achieved, clamping deviation is reduced, the clamping device is suitable for different operation scenes, clamping stability is improved, stress damage to the part is avoided, operation is convenient and fast, and the clamping use requirement of the automobile front steering knuckle part is met.

Description

Technical Field

[0001] This invention relates to the field of steering knuckle component press-fitting technology, specifically to a hydraulic clamping mechanism for components in the front steering knuckle of an automobile. Background Technology

[0002] The front steering knuckle is a core component of the automotive steering and transmission system. It integrates the knuckle body, drive shaft, half-shaft, and various connecting arms and pivot structures. Reliable clamping and positioning of the steering knuckle are crucial during machining and assembly processes. The effectiveness of this clamping and positioning directly impacts the quality of subsequent processes. Therefore, the industry places high demands on the stability and adaptability of the clamping mechanism for steering knuckle components. Currently, existing clamping devices for automotive front steering knuckle components still have many technical shortcomings and struggle to meet the demands of actual production operations.

[0003] Existing clamping devices mostly employ single-point or dual-point clamping methods, only providing simple clamping to the outer side of the steering knuckle body. They lack corresponding abutment and limiting structures for the drive shaft and half-shaft, making the steering knuckle prone to axial and radial displacement during clamping, failing to achieve multi-directional positioning, and resulting in poor clamping stability. Some clamping devices have limited arm opening and closing adjustment ranges, and the linkage between the drive components and the clamping arms is ineffective, making it difficult to adapt to the clamping needs of steering knuckle components of different sizes, resulting in insufficient universal adaptability. Furthermore, some clamping devices have unreasonable clamping component layout designs, preventing the clamping force from being evenly distributed on the steering knuckle surface. Excessive localized force can easily cause deformation of the steering knuckle body, or even damage to the component's structure.

[0004] Meanwhile, many existing clamping devices suffer from suboptimal overall structural designs, with some moving parts prone to interference during operation. This makes adjusting the device's position cumbersome for operators, resulting in poor ease of operation. Furthermore, the insufficient smoothness of motion transmission in some hydraulically driven clamping devices further impacts the overall stability of the clamping operation, failing to provide reliable clamping and positioning guarantees for the processing and assembly of automotive front steering knuckle components. Therefore, developing a highly adaptable, stable, and easy-to-operate clamping mechanism for automotive front steering knuckle components has become a pressing technical challenge in this field. Summary of the Invention

[0005] In view of the deficiencies mentioned above in the background technology, a technical solution is provided for a hydraulic clamping mechanism for components in the front steering knuckle of an automobile.

[0006] It includes a steering knuckle and a clamping and pressing device adapted to the steering knuckle; the steering knuckle includes an aluminum alloy knuckle body, a drive shaft half shaft installed in the output end of the drive half shaft inside the aluminum alloy knuckle body, the top and bottom ends of the aluminum alloy knuckle body are respectively fixed with the lower support point of the shock absorber and the lower control arm connector, and the front and rear ends of the aluminum alloy knuckle body are respectively fixed with the brake disc bracket mounting arm and the steering tie rod connecting arm; The clamping and pressing device includes a hydraulic cylinder, three protrusions fixed to the front end face of the hydraulic cylinder, and the front ends of the protrusions are respectively hinged to clamping arms. The output end of the hydraulic cylinder is connected to a push block, and the three outer ends of the push block are respectively movably connected to the inner side of the clamping arm. Three hydraulic rods are fixed on the outer surface of the push block, and a fan-shaped push plate is connected to the output end of each hydraulic rod. A sliding groove is opened inside each clamping arm to allow the three outer ends of the push block to move back and forth. An arc-shaped clamping block is fixed on the inner side of the front end of each clamping arm.

[0007] In the above technical solution, preferably, a handle is connected to each of the left and right side walls of the hydraulic cylinder.

[0008] In the above technical solution, preferably: a hydraulic shaft is connected to the front output end of the hydraulic cylinder, and the front end of the hydraulic shaft is fixedly connected to the inside of the push block.

[0009] In the above technical solution, preferably: the rear end of the clamping arm is inserted into the inside of the protrusion, and a pivot pin passes through between the clamping arm and the protrusion.

[0010] In the above technical solution, preferably, the protrusions and clamping arms are arranged in a circular array with the axis of the hydraulic cylinder as the base point.

[0011] In the above technical solution, preferably, each of the three outer ends of the push block is fixed with a sliding shaft that slides inside the groove.

[0012] In the above technical solution, preferably, the slide is inclined and is used to allow the front ends of the clamping arms to converge or spread together after the push block moves back and forth.

[0013] In the above technical solution, preferably: the output end of the hydraulic rod is connected to a telescopic shaft, the front end of the telescopic shaft is fixedly connected to the rear side of the fan-shaped push plate, and the front end of the fan-shaped push plate is in contact with the side wall of the transmission shaft half shaft away from the aluminum alloy section.

[0014] In the above technical solution, preferably, the end faces of the arc-shaped clamping blocks that are close to each other are in clamping contact with the outer ring surface of the aluminum alloy section.

[0015] In the above technical solution, preferably, the rear end of the clamping arm is provided with a pin hole for the shaft pin to pass through and rotate.

[0016] As can be seen from the above technical solution, the hydraulic clamping mechanism for components in the front steering knuckle of an automobile provided by the present invention has the following beneficial effects compared with the prior art: This invention provides a multi-directional positioning effect for clamping automotive front steering knuckle components. An arc-shaped clamping block clamps the steering knuckle body, while a fan-shaped push plate abuts and limits the drive shaft half-shaft. This dual action effectively reduces positional displacement during clamping, significantly improving the overall stability of steering knuckle component clamping. The mechanism uses hydraulic drive to move the clamping arms, achieving convergence and diffusion at the front end, adaptable to steering knuckle bodies of different sizes, enhancing the device's adaptability. The clamping arms, hydraulic rods, and other components are arranged in a circular array, ensuring even distribution of clamping and abutment forces on the steering knuckle, preventing excessive localized stress that could damage components. The overall structure is compact, with smooth and uninterrupted movement of all components. The grip structure facilitates operator adjustment of the device's position, offering excellent ease of operation and adaptability to various work scenarios. Furthermore, the matching structural design at each connection point further ensures the stability of the device during operation, meeting the actual operational requirements for clamping automotive front steering knuckle components. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a hydraulic clamping and pressing mechanism; Figure 2 This is a schematic diagram of a steering knuckle; Figure 3 This is a schematic diagram of the clamping and pressing device; Figure 4 This is a schematic diagram of the press-fit assembly; Figure 5 This is a schematic diagram of a partial component of the clamping and pressing device.

[0019] Appendix Figure 1 -Appendix Figure 5 The correspondence between the components is as follows: 1. Steering knuckle; 1-1. Aluminum alloy knuckle body; 1-2. Brake disc bracket mounting arm; 1-3. Lower control arm connector; 1-4. Steering tie rod connecting arm; 1-5. Shock absorber lower support point; 1-6. Drive shaft half shaft; 2. Clamping and pressing device; 2-1. Hydraulic cylinder; 2-2. Grip; 2-3. Protrusion; 2-4. Hydraulic shaft; 2-5. Push block; 2-6. Clamping arm; 2-7. Sliding shaft; 2-8. Shaft pin; 2-9. Hydraulic rod; 2-10. Telescopic shaft; 2-11. Fan-shaped push plate; 2-12. Pin hole; 2-13. Slide groove; 2-14. Arc-shaped clamping block. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In order to provide a clearer explanation and description of the technical solutions and implementation methods of the present invention, the following describes specific embodiments that implement the preferred technical solutions of the present invention.

[0021] This embodiment discloses a hydraulic clamping mechanism for components in a front steering knuckle of an automobile, including a steering knuckle 1 and a clamping and pressing device 2. The clamping and pressing device 2 is adapted to the steering knuckle 1 and is used to clamp related components of the steering knuckle 1. The steering knuckle 1 includes an aluminum alloy body 1-1, a drive shaft half-shaft 1-6 installed inside the aluminum alloy body 1-1 at the output end of the drive shaft half-shaft, a shock absorber lower support point 1-5 fixed to the top of the aluminum alloy body 1-1, a lower control arm connector 1-3 fixed to the bottom of the aluminum alloy body 1-1, a brake disc bracket mounting arm 1-2 fixed to the front end of the aluminum alloy body 1-1, and a steering tie rod connecting arm 1-4 fixed to the rear end of the aluminum alloy body 1-1. The fixed connection of each component with the aluminum alloy body 1-1 constitutes the overall structure of the steering knuckle 1, meeting the assembly and use requirements of the front steering knuckle of an automobile.

[0022] The clamping and pressing device 2 includes a hydraulic cylinder 2-1, and handles 2-2 are respectively connected to the left and right side walls of the hydraulic cylinder 2-1, making it convenient for operators to grip and press the device 2 for operation. Three protrusions 2-3 are fixed to the front end face of the hydraulic cylinder 2-1. The three protrusions 2-3 are arranged in a circular array with the axis of the hydraulic cylinder 2-1 as the base point. Each protrusion 2-3 has a clamping arm 2-6 hinged to its front end. The three clamping arms 2-6 are also arranged in a circular array with the axis of the hydraulic cylinder 2-1 as the base point, corresponding to and matching the array pattern of the protrusions 2-3. The rear ends of clamping arms 2-6 are inserted into the corresponding protrusions 2-3. A pin hole 2-12 is provided on the rear end of each clamping arm 2-6. A pivot pin 2-8 passes through the pin hole 2-12 and the protrusion 2-3 on the clamping arm 2-6, allowing the pivot pin 2-8 to rotate within the pin hole 2-12. This achieves a hinged connection between the clamping arm 2-6 and the protrusion 2-3, enabling the clamping arm 2-6 to rotate relative to the protrusion 2-3 around the pivot pin 2-8. A hydraulic shaft 2-4 is connected to the front output end of the hydraulic cylinder 2-1. The front end of the hydraulic shaft 2-4 is fixedly connected to the interior of the push block 2-5. When the hydraulic cylinder 2-1 operates, it drives the hydraulic shaft 2-4 to extend and retract, thereby moving the push block 2-5 back and forth. Three ends are provided on the outer side of the push block 2-5, each corresponding to the inner position of one of the three clamping arms 2-6. Each end is movably connected to the inner side of its corresponding clamping arm 2-6. Each of the three outer ends of the push block 2-5 is fixed with a sliding shaft 2-7. Each clamping arm 2-6 has a sliding groove 2-13 inside. The sliding shaft 2-7 is located inside the sliding groove 2-13 and can slide inside the sliding groove 2-13. The sliding groove 2-13 is opened at an angle. When the push block 2-5 moves back and forth under the drive of the hydraulic shaft 2-4, the sliding shaft 2-7 slides along the inclined sliding groove 2-13, thereby driving the front end of the clamping arm 2-6 to gather or spread together, realizing the switching of clamping or releasing action. Three hydraulic rods 2-9 are fixed on the outer surface of the push block 2-5. The three hydraulic rods 2-9 correspond to the three outer end positions of the push block 2-5. The output end of the hydraulic rod 2-9 is connected to the telescopic shaft 2-10. The front end of the telescopic shaft 2-10 is fixedly connected to the rear side of the fan-shaped push plate 2-11. The front end of the fan-shaped push plate 2-11 contacts the side wall of the drive shaft half shaft 1-6 away from the aluminum alloy section 1-1. When the hydraulic rod 2-9 is working, it can drive the telescopic shaft 2-10 to extend and retract, thereby driving the fan-shaped push plate 2-11 to move back and forth, so as to achieve the contact and limit of the drive shaft half shaft 1-6.

[0023] Arc-shaped clamping blocks 2-14 are fixed to the inner front end of each clamping arm 2-6. When the front ends of the clamping arms 2-6 converge, the end faces of the arc-shaped clamping blocks 2-14 that are close to each other contact the outer ring surface of the aluminum alloy segment 1-1 and form a clamping fit. The positioning of the steering knuckle 1 is achieved by clamping the aluminum alloy segment 1-1 with the arc-shaped clamping blocks 2-14. The structure of the three arc-shaped clamping blocks 2-14 is adapted to the outer ring contour of the aluminum alloy segment 1-1. During clamping, each arc-shaped clamping block 2-14 can maintain stable contact with the surface of the aluminum alloy segment 1-1. The structure of the three fan-shaped push plates 2-11 is adapted to the end face of the drive shaft half-shaft 1-6 away from the aluminum alloy segment 1-1, which can realize multi-point contact of the drive shaft half-shaft 1-6. The fixed connection between the protrusion 2-3 and the front end face of the hydraulic cylinder 2-1, the hinge connection between the clamping arm 2-6 and the protrusion 2-3, the connection between the hydraulic shaft 2-4 and the hydraulic cylinder 2-1 and the push block 2-5, the fixing method of the sliding shaft 2-7 and the push block 2-5 and the cooperation method with the sliding groove 2-13, the fixing method of the hydraulic rod 2-9 and the push block 2-5, the connection method of the telescopic shaft 2-10 and the hydraulic rod 2-9 and the fan-shaped push plate 2-11, and the fixing method of the arc-shaped clamping block 2-14 and the clamping arm 2-6 can all ensure the stable connection and action transmission between the various components of the clamping and pressing device 2, thereby realizing the reliable clamping of the steering knuckle 1. The fixed connection positions of each component of the steering knuckle 1 with the aluminum alloy joint body 1-1 are reasonably matched, giving the overall structure of the steering knuckle 1 good rationality. The layout of each component of the clamping and pressing device 2 is adapted to the structure of the steering knuckle 1, and the clamping operation can be specifically applied to the aluminum alloy joint body 1-1 and the drive shaft half shaft 1-6, meeting the usage requirements for clamping components in the front steering knuckle of automobiles. The rotation angle range of the clamping arm 2-6 around the shaft pin 2-8 is adapted to the inclination angle and length of the slide groove 2-13. When the push block 2-5 moves back and forth, the convergence and diffusion amplitude of the front end of the clamping arm 2-6 can be adapted to the clamping and releasing requirements of the aluminum alloy joint body 1-1.

[0024] The extension stroke of the hydraulic rod 2-9 driving the telescopic shaft 2-10 can be adjusted according to the installation position of the drive shaft half-shaft 1-6, so that the fan-shaped push plate 2-11 can maintain stable contact with the end face of the drive shaft half-shaft 1-6. Combined with the arc-shaped clamping block 2-14 clamping the aluminum alloy section 1-1, this forms a multi-directional positioning of the steering knuckle 1, reducing the offset of the steering knuckle 1 during clamping. The handle 2-2 is positioned for easy hand gripping by the operator. The operator can adjust the position of the clamping and pressing device 2 by gripping the handle 2-2, so that the arc-shaped clamping block 2-14 corresponds to and fits against the outer ring surface of the aluminum alloy section 1-1, and the fan-shaped push plate 2-11 corresponds to and fits against the end face of the drive shaft half-shaft 1-6. The two ends of the shaft pin 2-8 are equipped with anti-detachment structures at the connection points with the protrusion 2-3 to prevent the shaft pin 2-8 from falling out of the pin holes 2-12 of the protrusion 2-3 and the clamping arm 2-6, ensuring the stability of the hinged fit between the clamping arm 2-6 and the protrusion 2-3. The outer wall of the sliding shaft 2-7 is fitted to the inner wall of the sliding groove 2-13 to reduce the gap during sliding, allowing the forward and backward movement of the push block 2-5 to be smoothly transmitted to the clamping arm 2-6, driving the front end of the clamping arm 2-6 to stably converge or expand. The connection point between the hydraulic shaft 2-4 and the hydraulic cylinder 2-1 is equipped with a sealing structure to prevent hydraulic oil leakage, ensuring the stability of the hydraulic cylinder 2-1 driving the hydraulic shaft 2-4, and thus ensuring the smooth movement of the push block 2-5.

[0025] The connection between the telescopic shaft 2-10 and the hydraulic rod 2-9 is also equipped with a sealing structure to prevent hydraulic oil leakage during operation of the hydraulic rod 2-9, ensuring the reliability of the hydraulic rod 2-9's drive on the telescopic shaft 2-10, and allowing the fan-shaped push plate 2-11 to stably abut against the drive shaft half-shaft 1-6. The end faces of the arc-shaped clamping blocks 2-14, which are close to each other, are provided with an arc that adapts to the outer contour of the aluminum alloy section 1-1, increasing the contact area with the surface of the aluminum alloy section 1-1 and improving clamping stability. The front end face of the fan-shaped push plate 2-11 is provided with a structure that adapts to the end face of the drive shaft half-shaft 1-6, ensuring stable contact between the fan-shaped push plate 2-11 and the end face of the drive shaft half-shaft 1-6, achieving effective abutment and limiting of the drive shaft half-shaft 1-6. The positions of the brake disc bracket mounting arm 1-2, steering tie rod connecting arm 1-4, shock absorber lower support point 1-5, and lower control arm connector 1-3 of the steering knuckle 1 are designed to avoid the clamping operation area of ​​the clamping and pressing device 2, thus preventing interference with its operation and ensuring smooth clamping. The clamping and pressing device 2 has a compact overall structure and reasonable connections between its components. While achieving stable clamping of the steering knuckle 1, it is also easy for operators to carry and work with, and can adapt to the clamping needs of steering knuckle components in different scenarios.

[0026] The symmetrical ring array arrangement of three protrusions 2-3, three clamping arms 2-6, three hydraulic rods 2-9, and three fan-shaped push plates 2-11 ensures that the clamping and abutment forces are evenly distributed on the steering knuckle 1, reducing the possibility of damage to the steering knuckle 1 due to excessive local stress, while also ensuring the coaxiality and positioning effect of the steering knuckle 1 after clamping. The length of the clamping arm 2-6 is adapted to the extension length of the front end of the hydraulic cylinder 2-1 and the travel stroke of the push block 2-5, allowing the arc-shaped clamping block 2-14 at the front end of the clamping arm 2-6 to reach the clamping position of the aluminum alloy joint body 1-1, achieving reliable clamping. The installation position of the hydraulic rod 2-9 is adapted to the structure of the push block 2-5, which avoids interference between the hydraulic rod 2-9 and components such as the clamping arm 2-6 and the sliding shaft 2-7 during operation, ensuring the independence and coordination of the actions of each component. The tilt angle of the slide groove 2-13 is rationally designed so that the forward and backward movement of the push block 2-5 can be effectively converted into the convergence or diffusion amplitude of the front end of the clamping arm 2-6, which can adapt to the clamping requirements of aluminum alloy sections 1-1 of different sizes. The diameter of the pin hole 2-12 is matched with the outer diameter of the shaft pin 2-8, so that the shaft pin 2-8 can rotate smoothly in the pin hole 2-12, while reducing the gap during the rotation process and ensuring the stability of the rotation of the clamping arm 2-6.

[0027] Workflow description of the technical solution: The operator holds the handle 22 and adjusts the placement of the clamping and pressing device 2 so that the aluminum alloy joint 11 of the steering knuckle 1 corresponds to the arc-shaped clamping blocks 214 at the front end of the three clamping arms 26. At the same time, the fan-shaped push plate 211 is aligned with the drive shaft half shaft 16 away from the side wall of the aluminum alloy joint 11. The hydraulic cylinder 21 is activated, and the hydraulic cylinder 21 drives the hydraulic shaft 24 to extend forward. The hydraulic shaft 24 drives the push block 25 to move forward. The sliding shafts on the three ends of the outer side of the push block 25... The sliding shaft 27 slides along the inclined groove 213 inside the clamping arm 26. Utilizing the inclined structure of the groove 213, the sliding shaft 27 drives the clamping arm 26 to rotate relative to the protrusion 23 around the shaft pin 28 during its sliding process. The front ends of the three clamping arms 26 gradually converge until the arc-shaped clamping block 214 contacts the outer surface of the aluminum alloy section 11 and forms a clamping engagement, thus positioning the aluminum alloy section 11. Then, the three hydraulic rods 29 are activated, driving the telescopic shaft 210 to extend forward. The hydraulic cylinder 21 moves the sector-shaped push plate 211 forward, causing it to contact the side wall of the drive shaft half-shaft 16 and form a contact limit, thus completing the clamping operation of the steering knuckle 1 and related components. After the clamping operation is completed, the hydraulic rod 29 is controlled to drive the telescopic shaft 210 to retract backward. The telescopic shaft 210 drives the sector-shaped push plate 211 to move backward, separating the sector-shaped push plate 211 from the side wall of the drive shaft half-shaft 16 and releasing the contact limit on the drive shaft half-shaft 16. Then, the hydraulic cylinder 21 is controlled to drive the hydraulic cylinder... The pressure shaft 24 retracts backward, and the hydraulic shaft 24 drives the push block 25 to move backward. The sliding shaft 27 on the push block 25 slides in the opposite direction along the sliding groove 213, which drives the clamping arm 26 to rotate in the opposite direction around the shaft pin 28. The front end of the clamping arm 26 gradually spreads out, and the arc-shaped clamping block 214 separates from the outer ring surface of the aluminum alloy section 11, releasing the clamping of the aluminum alloy section 11. The operator holds the handle 22 and moves the clamping and pressing device 2, so that the clamping and pressing device 2 is completely separated from the steering knuckle 1. The working process ends here.

[0028] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A hydraulic clamping mechanism for components in a front steering knuckle of an automobile, characterized in that: It includes a steering knuckle (1) and a clamping and pressing device (2) adapted to the steering knuckle (1); the steering knuckle (1) includes an aluminum alloy body (1-1), a drive shaft half shaft (1-6) installed in the output end of the drive half shaft inside the aluminum alloy body (1-1), the top and bottom ends of the aluminum alloy body (1-1) are respectively fixed with a shock absorber lower support point (1-5) and a lower control arm connector (1-3), and the front and rear ends of the aluminum alloy body (1-1) are respectively fixed with a brake disc bracket mounting arm (1-2) and a steering tie rod connecting arm (1-4). The clamping and pressing device (2) includes a hydraulic cylinder (2-1), three protrusions (2-3) fixed on the front end face of the hydraulic cylinder (2-1), and the front ends of the protrusions (2-3) are respectively hinged to clamping arms (2-6). The output end of the hydraulic cylinder (2-1) is connected to a push block (2-5), and the three outer ends of the push block (2-5) are respectively movably connected to the inner side of the clamping arm (2-6). Three hydraulic rods (2-9) are fixed on the outer surface of the push block (2-5). Each hydraulic rod (2-9) has a fan-shaped push plate (2-11) connected to its output end. Each clamping arm (2-6) has a sliding groove (2-13) inside for the three outer ends of the push block (2-5) to move back and forth. Each clamping arm (2-6) has an arc-shaped clamping block (2-14) fixed on the inner side of its front end.

2. The hydraulic clamping mechanism for components in a front steering knuckle of an automobile according to claim 1, characterized in that: A handle (2-2) is connected to each of the left and right side walls of the hydraulic cylinder (2-1).

3. The hydraulic clamping mechanism for components in a front steering knuckle of an automobile according to claim 1, characterized in that: A hydraulic shaft (2-4) is connected to the front output end of the hydraulic cylinder (2-1), and the front end of the hydraulic shaft (2-4) is fixedly connected to the inside of the push block (2-5).

4. The hydraulic clamping mechanism for components in a front steering knuckle of an automobile according to claim 1, characterized in that: The rear ends of the clamping arms (2-6) are inserted into the protrusions (2-3), and a pivot pin (2-8) passes through between the clamping arms (2-6) and the protrusions (2-3).

5. A hydraulic clamping mechanism for components in a front steering knuckle of an automobile according to claim 1, characterized in that: The protrusions (2-3) and clamping arms (2-6) are arranged in a circular array with the axis of the hydraulic cylinder (2-1) as the base point.

6. A hydraulic clamping mechanism for components in a front steering knuckle of an automobile according to claim 1, characterized in that: The push block (2-5) has a sliding shaft (2-7) fixed on each of its three outer ends, which slides inside the sliding groove (2-13).

7. A hydraulic clamping mechanism for components in a front steering knuckle of an automobile according to claim 1, characterized in that: The groove (2-13) is inclined and is used to allow the front ends of the clamping arms (2-6) to converge or disperse after the push block (2-5) moves back and forth.

8. A hydraulic clamping mechanism for components in a front steering knuckle of an automobile according to claim 1, characterized in that: The output end of the hydraulic rod (2-9) is connected to a telescopic shaft (2-10). The front end of the telescopic shaft (2-10) is fixedly connected to the rear side of the fan-shaped push plate (2-11). The front end of the fan-shaped push plate (2-11) is in contact with the side wall of the transmission shaft half shaft (1-6) away from the aluminum alloy section (1-1).

9. A hydraulic clamping mechanism for components in a front steering knuckle of an automobile according to claim 1, characterized in that: The end faces of the arc-shaped clamping blocks (2-14) that are close to each other are in clamping contact with the outer ring surface of the aluminum alloy section (1-1).

10. A hydraulic clamping mechanism for components in a front steering knuckle of an automobile according to claim 1, characterized in that: The rear end of the clamping arm (2-6) is provided with a pin hole (2-12) for the shaft pin (2-8) to pass through and rotate.

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