A turning connecting rod bearing assembly tool

Abstract

The utility model relates to steering connecting rod bearing processing technical field, specifically disclose a kind of steering connecting rod bearing assembly tool, including assembly frame, the inner bottom wall of assembly frame is equipped with two sliding slots, the upper and lower of sliding slot is provided with the limiting structure for limiting steering connecting rod deviation, the top of assembly frame is equipped with cylinder, the lower of cylinder is provided with the fixed structure for fixing the position of steering connecting rod, this steering connecting rod bearing assembly tool, by limiting structure, fixed structure and protection structure mutual cooperation, by spring buffer when by cylinder down pressure makes second rectangular plate first stable pressure steering connecting rod, again by detachable down pressure mould completes bearing press fitting, avoid press fitting when connecting rod displacement, and down pressure mould can be replaced as required, adapt to different model bearing assembly demand, simultaneously, the down movement of cross plate driven by cylinder and back stroke synchronous realization the rotation of protective plate is shielded and opened, effectively circumvents the risk that bearing steel ball pops out and connecting rod accidentally deviates when press fitting.

Description

Technical Field

[0001] This utility model relates to the field of steering link bearing processing technology, specifically a steering link bearing assembly fixture. Background Technology

[0002] In automotive steering system assembly, the installation accuracy of steering link bearings directly affects vehicle handling safety and steering feel. Assembly fixtures are core equipment for ensuring the quality of this process. While current technology has gradually shifted from manual operation to mechanization and automation, many limitations remain. Traditional assembly methods rely on manual alignment of the steering link and bearings, followed by press installation using a press machine. This is labor-intensive and inefficient, and manual positioning can easily lead to bearing misalignment, posing a safety risk of hand injury. To address this issue, existing fixtures often use cylinders or servo motors to drive the press head, working in conjunction with a positioning seat to achieve basic positioning. Some equipment uses a mandrel guide to improve the coaxiality of the press installation.

[0003] In studying existing steering link bearing processing, the following problems were found: Existing tooling mostly relies on a basic positioning seat to limit the connection rod. When the pressure head applies pressure to the bearing, the connection rod is prone to bearing displacement due to the force. In addition, to ensure safety, existing devices are mostly equipped with safety protection structures, which are mainly divided into two types. One type is a fixed protective cover, which can play a basic protective role, but it will hinder the workpiece loading and unloading and the observation of the assembly process. The other type is a lifting baffle that requires an additional control unit to drive. Its protective action lacks linkage with the pressing process. Before pressing starts, it is necessary to manually confirm whether the protective baffle is in place. After pressing is completed, it is necessary to manually operate to reset the baffle. This not only causes operational delays, but also may lead to protection failure due to human negligence. It is difficult to effectively avoid equipment damage or personnel safety risks caused by bearing steel ball ejection and accidental displacement of the connection rod during the pressing process. Therefore, we propose a steering link bearing assembly tooling. Utility Model Content

[0004] The purpose of this utility model is to provide a steering link bearing assembly fixture to solve the problems mentioned in the background art, such as the existing fixtures relying on the base positioning seat being prone to bearing displacement due to press-fitting force, and the safety protection structure either obstructing operation and observation, or requiring additional control and having poor linkage and easy failure, making it difficult to avoid safety risks.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steering link bearing assembly fixture, including an assembly frame, two sliding grooves are provided on the inner bottom wall of the assembly frame, and limiting structures for limiting the offset of the steering link are provided above and below the sliding grooves, a cylinder is installed on the top of the assembly frame, a fixing structure for fixing the position of the steering link is provided below the cylinder, and protective structures are installed on the front and back of the assembly frame.

[0006] The limiting structure includes two sliders that are slidably connected to the inner wall of the groove, two symmetrically distributed fixed plates installed on the bottom surface of the assembly frame, two sliding rods and a bidirectional threaded rod located in the middle of the fixed plates, and a servo motor fixedly installed on the outside of the fixed plates.

[0007] The output end of the servo motor is fixedly connected to the bidirectional threaded rod, the slider is threadedly connected to the outer wall of the bidirectional threaded rod, and a limiting block is installed on the top of the slider.

[0008] The fixed structure includes a cross plate fixedly connected to the cylinder output end, a first rectangular plate installed at the bottom of the cross plate, and a detachable pressing mold for assembling bearings.

[0009] The bottom of the first rectangular plate is fixedly connected to a spring arranged in a rectangular array, and the bottom of the spring is fixedly connected to a second rectangular plate.

[0010] The protective structure includes two symmetrically distributed gear plates installed on the top of the cross plate, a gear meshing with the gear plates, and a shaft fixedly connected to the gear.

[0011] The shaft is externally fixed with a protective plate, and the protective plate is equipped with anti-collision strips. The top of the assembly frame 1 is equipped with a limiting frame to restrict the movement of the gear plate.

[0012] This utility model has at least the following beneficial effects:

[0013] By employing a combination of limiting, fixing, and protective structures, the second rectangular plate is first stably pressed against the steering linkage by spring buffer when the cylinder presses down. Then, the bearing is press-fitted by a detachable pressing mold, preventing linkage displacement during pressing and improving bearing assembly coaxiality. The pressing mold can be replaced as needed to adapt to the assembly requirements of different bearing models. Simultaneously, the cylinder drives the cross plate to move down and return synchronously, achieving the rotation and opening of the protective plate. With the anti-collision strip on the outside of the protective plate, the linkage between protection and pressing processes can be achieved without an additional control unit, effectively avoiding the risk of bearing steel balls popping out and linkage misalignment during pressing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure One ;

[0015] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure Two ;

[0016] Figure 3 This is a front view schematic diagram of the overall structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the limiting structure, fixing structure and protective structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the overall structure of the present utility model. Figure Three .

[0020] In the diagram: 1. Assembly frame; 2. Limiting structure; 21. Slider; 22. Fixing plate; 23. Slide rod; 24. Bidirectional threaded rod; 25. Servo motor; 26. Limiting block; 3. Cylinder; 4. Fixing structure; 41. Cross plate; 42. First rectangular plate; 43. Pressing die; 44. Spring; 45. Second rectangular plate; 5. Protective structure; 51. Gear plate; 52. Gear; 53. Shaft; 54. Protective plate; 55. Limiting frame. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 6 This utility model provides a technical solution: a steering link bearing assembly fixture, including an assembly frame 1, two sliding grooves are provided on the inner bottom wall of the assembly frame 1, and limiting structures 2 for limiting the offset of the steering link are provided above and below the sliding grooves, a cylinder 3 is installed on the top of the assembly frame 1, a fixing structure 4 for fixing the position of the steering link is provided below the cylinder 3, and a protective structure 5 is installed on the front and back of the assembly frame 1.

[0023] The above solution addresses the following issues: In existing technologies, the reliance on a base positioning seat can easily lead to bearing displacement due to pressure during pressing. Furthermore, the safety protection structure 5 may obstruct operational observation, require additional control, and suffer from poor linkage, making it difficult to avoid safety risks. Therefore, by coordinating the limiting structure 2, fixing structure 4, and protective structure 5, the second rectangular plate 45 is first stably pressed against the steering linkage by the spring 44 during the downward press of the cylinder 3. Then, the detachable pressing mold 43 completes the bearing pressing, preventing linkage displacement during pressing, improving bearing assembly coaxiality, and allowing the pressing mold 43 to be replaced as needed to adapt to different bearing assembly requirements. Simultaneously, the cylinder 3 drives the cross plate 41 to move downwards and return synchronously, achieving the rotation and opening of the protective plate 54. Combined with the external anti-collision strip of the protective plate 54, the linkage between protection and pressing processes can be achieved without an additional control unit, effectively avoiding the risks of bearing balls popping out and linkage misalignment during pressing.

[0024] The limiting structure 2 includes two sliders 21 that are slidably connected to the inner wall of the slide groove, two symmetrically distributed fixed plates 22 installed on the bottom surface of the assembly frame 1, two slide rods 23 and a bidirectional threaded rod 24 located in the middle of the fixed plates 22. A servo motor 25 is fixedly installed on the outside of the fixed plates 22. The sliders 21 slide along the slide groove and the spacing can be adjusted to adapt to steering linkages of different widths. The bidirectional threaded rod 24 can realize the synchronous approach or distance of the two sliders 21 through a single drive.

[0025] The output end of the servo motor 25 is fixedly connected to the bidirectional threaded rod 24, the slider 21 is threadedly connected to the outer wall of the bidirectional threaded rod 24, and a limiting block 26 is installed on the top of the slider 21.

[0026] The fixed structure 4 includes a cross plate 41 fixedly connected to the output end of the cylinder 3, a first rectangular plate 42 installed at the bottom of the cross plate 41, and a detachable pressing mold 43 for assembling bearings. The pressing mold 43 is designed to be detachable, which makes it easy to replace the mold with a suitable one according to different bearing models without replacing the entire fixed structure 4. The cross plate 41 is slidably connected to the inner wall of the assembly frame 1 and is directly connected to the cylinder 3, which can transmit the pressure of the cylinder 3 to the lower component. At the same time, its slidable connection with the inner wall of the assembly frame 1 ensures that the cross plate 41 moves only in the vertical direction when pressing down, avoiding skew and improving the coaxiality of the pressing.

[0027] The bottom of the first rectangular plate 42 is fixedly connected to a spring 44 arranged in a rectangular array. The bottom of the spring 44 is fixedly connected to a second rectangular plate 45. The rectangular array of springs 44 can provide uniform buffering force to prevent the connecting rod from deforming due to excessive local pressure when the second rectangular plate 45 contacts the connecting rod. The elastic characteristics of the spring 44 allow the second rectangular plate 45 to contact the connecting rod before the lower die 43 and complete the pre-pressing, fixing the position of the connecting rod and preventing the connecting rod from shifting during subsequent pressing. At the same time, it prevents the spring 44 from directly contacting the connecting rod and causing damage.

[0028] The protective structure 5 includes two symmetrically distributed gear plates 51 installed on the top of the cross plate 41 and a gear 52 meshing with the gear plates 51, as well as a shaft 53 fixedly connected to the gear 52. The gear plates 51 move synchronously with the cross plate 41, which can convert the vertical movement of the cross plate 41 into the rotational movement of the gear 52. When the gear 52 rotates, it can drive the protective plate 54 to rotate through the shaft 53, thereby realizing the rotational blocking of the protective plate 54. The gear 52 meshes with the gear plate 51 to ensure that the protective plate 54 can be opened or closed in time with the pressing action.

[0029] A protective plate 54 is fixedly connected to the outside of the shaft 53. Anti-collision strips are installed on the outside of the protective plate 54. The protective plate 54 rotates with the shaft 53 and can quickly cover the assembly area during press-fitting, effectively preventing safety hazards caused by the ejection of bearing steel balls and the displacement of connecting rods. The anti-collision strips can reduce the problem of injury caused by the protective plate 54 hitting the arms of workers when it moves.

[0030] It is worth noting that the cylinder 3 and servo motor 25 mentioned in the above scheme have built-in power supplies and are controlled by their own switches or external controllers. Their working principle is common knowledge known to those skilled in the art and has been fully disclosed in the prior art. It will not be elaborated on further in this article. Furthermore, the wear parts such as gear 52, gear plate 51 and spring 44 mentioned in the article require regular maintenance.

[0031] Work steps:

[0032] First, place the steering linkage to be assembled above the groove on the inner bottom wall of the assembly frame 1. Start the servo motor 25 to drive the bidirectional threaded rod 24 to rotate, causing the slider 21 to move synchronously along the groove and the slide rod 23, so that the limiting block 26 at the top of the slider 21 fits against the outer wall of the linkage, completing the limiting fixation of the linkage and adapting to the linkage width specification. Then, place the bearing at the mounting hole of the linkage, start the cylinder 3 to drive the cross plate 41 to slide downward along the inner side wall of the assembly frame 1. When the cross plate 41 moves downward, it first drives the first rectangular plate 42 and the bottom spring 44 and the second rectangular plate 45 to move synchronously. The second rectangular plate 45 contacts the linkage first and presses the linkage under the buffering action of the spring 44 to achieve pre-fixation. The cross plate 41 continues to move downward, and the bottom... The pressing die 43 contacts the bearing and applies pressure to press the bearing into the connecting rod mounting hole. At the same time, the cross plate 41 moves down, driving the top gear plate 51 to move synchronously. The gear plate 51 and gear 52 mesh and drive the transmission, driving the protective plate 54 to rotate through the shaft 53, blocking the front and back areas of the assembly frame 1 to avoid safety risks. After the bearing is pressed in, the control cylinder 3 drives the cross plate 41 to return. The cross plate 41 moves up, causing the lower pressing die 43 and the second rectangular plate 45 to disengage from the connecting rod. The gear plate 51 moves up with the cross plate 41, driving the gear 52 to rotate in the opposite direction. The protective plate 54 rotates accordingly to open the assembly area. Finally, the servo motor 25 is turned off, causing the slider 21 to drive the limiting block 26 to reset. The assembled steering connecting rod can then be removed.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steering link bearing assembly fixture, comprising an assembly frame (1), characterized in that: The inner bottom wall of the assembly frame (1) has two sliding grooves. Above and below the sliding grooves are limiting structures (2) for limiting the offset of the steering linkage. A cylinder (3) is installed on the top of the assembly frame (1). Below the cylinder (3) is a fixing structure (4) for fixing the position of the steering linkage. A protective structure (5) is installed on the front and back of the assembly frame (1).

2. The steering link bearing assembly fixture according to claim 1, characterized in that: The limiting structure (2) includes two sliders (21) slidably connected to the inner wall of the groove, two fixed plates (22) symmetrically distributed on the bottom surface of the assembly frame (1), two sliding rods (23) and a bidirectional threaded rod (24) located in the middle of the fixed plate (22), and a servo motor (25) is fixedly installed on the outside of the fixed plate (22).

3. The steering link bearing assembly fixture according to claim 2, characterized in that: The output end of the servo motor (25) is fixedly connected to the bidirectional threaded rod (24), the slider (21) is threadedly connected to the outer wall of the bidirectional threaded rod (24), and a limiting block (26) is installed on the top of the slider (21).

4. The steering link bearing assembly fixture according to claim 3, characterized in that: The fixed structure (4) includes a cross plate (41) fixedly connected to the output end of the cylinder (3), a first rectangular plate (42) installed at the bottom of the cross plate (41), and a detachable pressing mold (43) for assembling bearings.

5. The steering link bearing assembly fixture according to claim 4, characterized in that: The bottom of the first rectangular plate (42) is fixedly connected to a spring (44) arranged in a rectangular array, and the bottom of the spring (44) is fixedly connected to a second rectangular plate (45).

6. The steering link bearing assembly fixture according to claim 1, characterized in that: The protective structure (5) includes two symmetrically distributed gear plates (51) installed on the top of the cross plate (41) and a gear (52) meshing with the gear plates (51), as well as a shaft (53) fixedly connected to the gear.

7. The steering link bearing assembly fixture according to claim 6, characterized in that: A protective plate (54) is fixedly connected to the outside of the shaft (53), and an anti-collision strip is installed on the outside of the protective plate (54). A limiting frame (55) that restricts the movement of the gear plate (51) is installed on the top of the assembly frame (1).

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