Automobile part linkage tool clamp

By designing a linkage tooling fixture for automotive parts, the problems of inaccurate positioning, unstable clamping, and complex operation in traditional steering knuckle processing have been solved, achieving high-precision positioning and efficient processing of steering knuckles, and reducing production costs and labor intensity.

CN224223347UActive Publication Date: 2026-05-12CHONGQING HUIJIAN MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING HUIJIAN MASCH CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional steering knuckle machining fixtures suffer from inaccurate positioning, unstable clamping, and complex operation, which affect machining accuracy and efficiency, and increase production costs and labor intensity.

Method used

Design a linkage tooling fixture for automotive parts, including a mounting plate, a fixing plate, a hydraulic cylinder, a positioning component, and a bearing housing. By precisely aligning the mounting surface and kingpin hole of the steering knuckle, the piston rod drives the pressure plate to clamp the steering knuckle, simplifying the operation process and improving positioning accuracy and production efficiency.

Benefits of technology

It significantly improves the positioning accuracy of the steering knuckle, reduces the number of clamping operations, simplifies the operation steps, reduces labor intensity, and improves production efficiency and processing quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automobile part linkage tool clamp which comprises an installation plate, a fixing plate is installed on the top face of the installation plate, an oil cylinder is installed on the bottom face of the installation plate, the top face of the oil cylinder is connected with a pressing plate, two bearing seats are arranged on the top face of the installation plate, and the two bearing seats are both used for installing a steering knuckle. And the two positioning assemblies are used for positioning when the steering knuckle is installed. According to the technical scheme, the positioning accuracy of the steering knuckles in the mounting process is remarkably improved by accurately aligning the mounting surfaces on the steering knuckles with the bearing seats on the mounting plate and combining a mode of aligning one main pin hole of the steering knuckles with the positioning assembly, and then the pressing plate is driven by the piston rod to move and clamp the two steering knuckles at the same time, so that the positioning accuracy of the steering knuckles in the mounting process is greatly improved. According to the steering knuckle machining clamp, multiple parts, needing to be machined, of a steering knuckle are all exposed, the purpose of reducing the clamping frequency is achieved, operation is easy, repeated manual adjustment and calibration are not needed, the production efficiency is improved, and the labor intensity of operators is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, specifically to a linkage tooling and fixture for automotive parts. Background Technology

[0002] With the rapid development of the automotive industry, the steering knuckle, as a key component of the automotive steering system, has a significant impact on the vehicle's handling stability and safety due to its quality and machining precision. The steering knuckle is primarily responsible for connecting the wheels to the suspension system, ensuring that the wheels maintain stable contact with the ground during driving and providing accurate steering based on the driver's input. Therefore, the design and manufacturing requirements for steering knuckles are extremely stringent, requiring sufficient strength, toughness, and precise geometry.

[0003] In traditional steering knuckle machining, fixture design often suffers from problems such as inaccurate positioning, unstable clamping, and complex operation. These issues not only affect the machining accuracy and efficiency of the steering knuckle but also increase production costs and the difficulty of operation for personnel.

[0004] Specifically, existing fixtures may have the following shortcomings:

[0005] 1. Inaccurate positioning: Due to unreasonable fixture design or severe wear, the positioning accuracy of the steering knuckle is reduced during the machining process, which in turn affects the machining quality and subsequent assembly.

[0006] 2. Unstable clamping: If the clamping mechanism of the fixture is not designed properly, it is easy for it to loosen or deform during the processing, which will affect the stability of the steering knuckle and the processing accuracy.

[0007] 3. Complex operation: Traditional fixtures have complicated operation steps and require multiple manual adjustments and calibrations, which not only reduces production efficiency but also increases the labor intensity of operators. Utility Model Content

[0008] In view of this, the purpose of this utility model is to provide a linkage tooling fixture for automotive parts to solve the technical problems mentioned in the background art.

[0009] This utility model is achieved through the following technical solution:

[0010] A linkage tooling fixture for automotive parts includes a mounting plate, a fixed plate mounted on the top surface of the mounting plate, and a hydraulic cylinder mounted on the bottom surface of the mounting plate. The hydraulic cylinder consists of a cylinder barrel and a piston rod. The top surface of the cylinder barrel is connected to the bottom surface of the fixed plate, and the piston rod extends longitudinally through the fixed plate. A pressure plate is connected to the end of the piston rod away from the cylinder barrel. Bearing seats are provided on the mounting plates on opposite sides of the fixed plate. Both bearing seats are used to install steering knuckles. The two ends of the pressure plate are in contact with the two steering knuckles respectively through the piston rod.

[0011] It also includes two positioning components, which are respectively installed on the top surface of the mounting plate on opposite sides of the fixed plate. The positioning components are used for positioning when installing the steering knuckle.

[0012] Furthermore, the positioning component includes a positioning block and a positioning rod. The positioning block is detachably installed on the top surface of the mounting plate, and one end of the positioning rod is connected to the top surface of the positioning block, while the other end extends upward.

[0013] Furthermore, the positioning block has multiple third threaded holes, and the mounting plate has multiple fourth threaded holes that are compatible with the third threaded holes. The third threaded holes and the fourth threaded holes are screwed together with second screws.

[0014] Furthermore, a through hole is provided on the bearing housing, which longitudinally penetrates the bearing housing and the mounting plate, and the longitudinal tie rod of the steering knuckle is slidably fitted in the through hole.

[0015] Furthermore, the mounting plate has a connecting hole that extends longitudinally through the mounting plate. The cylinder is slidably fitted inside the connecting hole. The mounting plate around the connecting hole has multiple first threaded holes, and the fixing plate has multiple second threaded holes that are compatible with the first threaded holes. A first screw is slidably fitted inside the first threaded hole and the second threaded hole.

[0016] Furthermore, the pressure plate has a locking hole, and the end of the piston rod away from the cylinder is engaged with the locking hole. The pressure plate and the piston rod are detachably connected by bolts.

[0017] The beneficial effects of this utility model are as follows:

[0018] This automotive parts linkage tooling fixture significantly improves the positioning accuracy of the steering knuckle during installation by precisely aligning the mounting surface on the steering knuckle with the bearing seat on the mounting plate, and by aligning one of the kingpin holes of the steering knuckle with the positioning component. Then, driven by the piston rod, the pressure plate moves and clamps the two steering knuckles simultaneously, exposing multiple parts of the steering knuckle that need to be machined. This reduces the number of clamping operations, and the operation is simple, requiring no manual adjustments or calibrations, thus improving production efficiency and reducing the labor intensity of operators.

[0019] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0020] Figure 1 This is a perspective view (first view) of the present invention;

[0021] Figure 2 This is a perspective view (second view) of the present invention;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4 This is an exploded view of the present invention;

[0024] Figure 5 For the present utility model Figure 4 A magnified view of part A in the image.

[0025] In the diagram: 1. Mounting plate; 2. Fixing plate; 3. Cylinder; 4. Piston rod; 5. Bearing housing; 6. Steering knuckle; 7. Through hole; 8. Connecting hole; 9. First threaded hole; 10. Second threaded hole; 11. First screw; 12. Locking hole; 13. Bolt; 14. Positioning assembly; 141. Positioning block; 142. Positioning rod; 15. Third threaded hole; 16. Fourth threaded hole; 17. Second screw; 18. Pressure plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0031] Please see Figure 1-5 This utility model provides a technical solution: a linkage tooling fixture for automotive parts, including a mounting plate 1, a fixing plate 2 mounted on the top surface of the mounting plate 1, and a hydraulic cylinder mounted on the bottom surface of the mounting plate 1. The hydraulic cylinder consists of a cylinder barrel 3 and a piston rod 4. The top surface of the cylinder barrel 3 is connected to the bottom surface of the fixing plate 2, and the piston rod 4 extends longitudinally through the fixing plate 2. A pressure plate 18 is connected to the end of the piston rod 4 away from the cylinder barrel 3. Bearing seats 5 are provided on the mounting plates 1 on opposite sides of the fixing plate 2. Both bearing seats 5 are used to install steering knuckles 6. The two ends of the pressure plate 18 are in contact with the two steering knuckles 6 respectively through the piston rod 4.

[0032] It also includes two positioning components 14, which are respectively installed on the top surface of the mounting plate 1 on opposite sides of the fixing plate 2. The positioning components 14 are used for positioning when installing the steering knuckle 6.

[0033] In the machining process of the steering knuckle 6, the mounting surfaces of the two steering knuckles 6 must first be precisely aligned with the two bearing seats 5 on the mounting plate 1. At the same time, a kingpin hole on the steering knuckle 6 must be aligned with the positioning component 14 to expose the part of the steering knuckle 6 that needs to be machined. Then, the hydraulic cylinder is activated, and the piston rod 4 drives the pressure plate 18 from its original extended state to its retracted state. The pressure plate 18 will gradually move closer along the direction of the mounting plate 1 until its opposite ends contact the two steering knuckles 6 respectively. During this process, the bearing seats 5 and the pressure plate 18 work together to clamp and fix the steering knuckle 6, ensuring that the steering knuckle 6 remains stable during the machining process. Finally, the clamped and fixed steering knuckle 6 is machined by the machining equipment.

[0034] By precisely aligning the mounting surface of the steering knuckle 6 with the bearing seat 5 on the mounting plate 1, and by aligning one of the kingpin holes of the steering knuckle 6 with the positioning assembly 14, the positioning accuracy of the steering knuckle 6 during installation is significantly improved. Then, by driving the piston rod 4, the pressure plate 18 moves and clamps the two steering knuckles 6 simultaneously, exposing multiple parts of the steering knuckle 6 that need to be machined. This reduces the number of clamping operations, simplifies the operation, eliminates the need for multiple manual adjustments and calibrations, improves production efficiency, and reduces the labor intensity of operators.

[0035] In this embodiment, the positioning component 14 includes a positioning block 141 and a positioning rod 142. The positioning block 141 is detachably installed on the top surface of the mounting plate 1. One end of the positioning rod 142 is connected to the top surface of the positioning block 141, and the other end extends upward.

[0036] When installing the steering knuckle 6, one of the kingpin holes on the steering knuckle 6 is fitted onto the positioning rod 142, and the top surface of the positioning block 141 contacts the bottom surface of the steering knuckle 6 to prevent the steering knuckle 6 from shaking during processing, which would cause deviations in positioning accuracy.

[0037] In this embodiment: the positioning block 141 is provided with a plurality of third threaded holes 15, and the mounting plate 1 is provided with a plurality of fourth threaded holes 16 that are adapted to the third threaded holes 15. The third threaded holes 15 and the fourth threaded holes 16 are internally threaded with a second screw 17.

[0038] To accommodate the different processing requirements of various types of steering knuckles 6, the parts requiring processing vary. The second thread allows for easy removal of the positioning block 141 and positioning rod 142 from the mounting plate 1. This enables operators to flexibly replace positioning blocks 141 and positioning rods 142 of different heights according to processing needs, ensuring they can adapt to and meet the processing requirements of various steering knuckle models 6.

[0039] In this embodiment: a through hole 7 is provided on the bearing seat 5, the through hole 7 extends longitudinally through the bearing seat 5 and the mounting plate 1, and the longitudinal tie rod of the steering knuckle 6 is slidably fitted in the through hole 7.

[0040] When installing the steering knuckle 6, the longitudinal tie rod of the steering knuckle 6 slides within the through hole 7, which can further improve the positioning accuracy of the steering knuckle 6.

[0041] In this embodiment: the mounting plate 1 has a connecting hole 8, which extends longitudinally through the mounting plate 1. The cylinder 3 is slidably fitted inside the connecting hole 8. The mounting plate 1 around the connecting hole 8 has multiple first threaded holes 9. The fixing plate 2 has multiple second threaded holes 10 that are adapted to the first threaded holes 9. A first screw 11 is slidably fitted inside the first threaded holes 9 and the second threaded holes 10.

[0042] When the hydraulic cylinder malfunctions, the easy-to-operate first screw 11 allows the cylinder to be quickly removed from the mounting plate 1 for necessary maintenance or replacement with a new cylinder.

[0043] In this embodiment: a locking hole 12 is provided on the pressure plate 18, and the end of the piston rod 4 away from the cylinder 3 is locked with the locking hole 12. The pressure plate 18 and the piston rod 4 are detachably connected by bolts 13.

[0044] When the pressure plate 18 has been used for too long and wear occurs around it, in order to ensure that the pressure plate 18 clamps and fixes the steering knuckle 6, the pressure plate 18 can be removed by bolt 13 and a new pressure plate 18 can be replaced.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A linkage tooling fixture for automotive parts, comprising a mounting plate (1), characterized in that: A fixing plate (2) is installed on the top surface of the mounting plate (1), and a hydraulic cylinder is installed on the bottom surface of the mounting plate (1). The hydraulic cylinder consists of a cylinder barrel (3) and a piston rod (4). The top surface of the cylinder barrel (3) is connected to the bottom surface of the fixing plate (2). The piston rod (4) runs longitudinally through the fixing plate (2). A pressure plate (18) is connected to the end of the piston rod (4) away from the cylinder barrel (3). Bearing seats (5) are provided on the mounting plates (1) on opposite sides of the fixing plate (2). Both bearing seats (5) are used to install steering knuckles (6). The two ends of the pressure plate (18) are in contact with the two steering knuckles (6) respectively through the piston rod (4). It also includes two positioning components (14), which are respectively mounted on the top surface of the mounting plate (1) on opposite sides of the fixing plate (2). The positioning components (14) are used to position the steering knuckle (6) during installation.

2. The automotive parts linkage tooling fixture according to claim 1, characterized in that: The positioning component (14) includes a positioning block (141) and a positioning rod (142). The positioning block (141) is detachably installed on the top surface of the mounting plate (1). One end of the positioning rod (142) is connected to the top surface of the positioning block (141), and the other end extends upward.

3. The automotive parts linkage tooling fixture according to claim 2, characterized in that: The positioning block (141) has multiple third threaded holes (15), and the mounting plate (1) has multiple fourth threaded holes (16) that are compatible with the third threaded holes (15). The third threaded holes (15) and the fourth threaded holes (16) are internally threaded with a second screw (17).

4. The automotive parts linkage tooling fixture according to claim 1, characterized in that: The bearing housing (5) has a through hole (7) which extends longitudinally through the bearing housing (5) and the mounting plate (1). The longitudinal tie rod of the steering knuckle (6) is slidably fitted in the through hole (7).

5. The automotive parts linkage tooling fixture according to claim 1, characterized in that: The mounting plate (1) has a connecting hole (8) that extends longitudinally through the mounting plate (1). The cylinder (3) is slidably fitted inside the connecting hole (8). The mounting plate (1) around the connecting hole (8) has multiple first threaded holes (9). The fixing plate (2) has multiple second threaded holes (10) that are adapted to the first threaded holes (9). The first threaded holes (9) and the second threaded holes (10) are threadedly fitted with first screws (11).

6. The automotive parts linkage tooling fixture according to claim 1, characterized in that: The pressure plate (18) has a locking hole (12), and the end of the piston rod (4) away from the cylinder (3) is engaged with the locking hole (12). The pressure plate (18) and the piston rod (4) are detachably connected by bolts (13).