Riveting tool device for belt pulley bearing nut assembly of automobile rear wheel steering system

Abstract

The utility model provides a riveting tool device for a belt pulley bearing nut assembly of an automobile rear wheel steering system, and belongs to the technical field of automobile manufacturing. The riveting tool device for the belt pulley bearing nut assembly of the automobile rear wheel steering system comprises a bottom plate, the top of the bottom plate is connected with a first fixing plate, the top of the fixing plate is connected with a first air cylinder, the top of the first air cylinder is connected with a positioning plate, the top of the positioning plate is connected with a positioning pin, and the top of the positioning pin is sleeved with a workpiece body; the left side and the right side of the top of the bottom plate are connected with guide rod lead screws, the surfaces of the guide rod lead screws are connected with a second fixing plate and a top plate correspondingly, the bottom of the second fixing plate is connected with a force arm frame, an inner cavity of the force arm frame is connected with a lever arm, the top of the lever arm penetrates through the top of the second fixing plate, and the surface of the lever arm is movably connected with a tension spring. The output end of the second air cylinder penetrates through the bottom of the top plate and is fixedly connected with a conical tip. The LED lamp can adapt to more application scenes, and is energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile manufacturing, and relates to a riveting tooling device for a pulley bearing nut assembly of an automobile rear-wheel steering system. Background Art

[0002] In the automotive industry, 20% of accident problems are caused by the loosening of fasteners. Loosening is a common failure form of threaded connections. In mild cases, it affects normal operation, and in severe cases, it endangers personal safety. Therefore, riveting to prevent the loosening of threaded connectors is an important task in the production safety process.

[0003] In the field of automobile manufacturing, the connection stability between the nut of the rear-wheel steering assembly and the threaded shaft is crucial. However, there are many deficiencies in the existing riveting technologies and tooling equipment. On the one hand, for the riveting and loosening prevention of the nut of the rear-wheel steering sub-assembly and the pulley of the threaded shaft bearing, the current technology is almost in a blank state. This may cause loosening between the nut and the threaded shaft during the operation of the automobile, affecting the handling performance and safety of the vehicle. On the other hand, the existing riveting mechanisms perform poorly in terms of positioning accuracy and pressure control. Many mechanisms cannot achieve riveting positioning at specific angular positions, resulting in unsatisfactory riveting effects. At the same time, due to low precision or insufficient pressure, it is difficult to accurately control the riveting depth, leading to uneven product quality. In addition, there are also problems with the selection of traditional riveting power sources. For example, some mechanisms use hydraulic cylinders as power sources, which not only easily cause oil pollution in the workshop environment, increase the cleaning and maintenance costs, but also may contaminate the workpiece, affecting the appearance and performance of the product.

[0004] Therefore, it is necessary to invent a riveting tooling device for a pulley bearing nut assembly of an automobile rear-wheel steering system to solve the above problems. Summary of the Invention

[0005] The purpose of the utility model is to provide a riveting tooling device for a pulley bearing nut assembly of an automobile rear-wheel steering system, which can increase the pushing force of the air cylinder, adapt to more application scenarios, improve the practicality, be more energy-saving, environmental-friendly and clean, and effectively avoid oil pollution of the use scenario and the workpiece, aiming at the above problems existing in the prior art.

[0006] The object of the present utility model can be achieved by the following technical solutions: A riveting tooling device for a pulley bearing nut assembly of an automotive rear-wheel steering system, comprising a bottom plate. A first fixed plate is fixedly connected to the top of the bottom plate. A first cylinder is bolted to the top of the fixed plate. A positioning plate is bolted to the top of the first cylinder. A positioning pin is fixedly connected to the top of the positioning plate. A workpiece body is sleeved on the top of the positioning pin. Guide rod screws are fixedly connected to both the left and right sides of the top of the bottom plate. A second fixed plate and a top plate are respectively fixedly connected to the surfaces of the guide rod screws. A force arm frame is bolted to the bottom of the second fixed plate. A lever arm is movably connected to the inner cavity of the force arm frame. The top of the lever arm penetrates through the top of the second fixed plate and is movably connected through the surface with a tension spring. A second cylinder is bolted to the top of the top plate. The output end of the second cylinder penetrates through the bottom of the top plate and is fixedly connected with a conical tip.

[0007] The main power parts of this riveting tooling device for the pulley bearing nut assembly of the automotive rear-wheel steering system are the first cylinder, the second cylinder, the guide rod screw, the conical tip, the lever arm, the force arm frame and the tension spring. Through the first cylinder, the second cylinder, the guide rod screw, the conical tip, the lever arm, the force arm frame and the tension spring, the pushing force of the cylinder can be increased, adapting to more application scenarios, improving the practicability, being more energy-saving, environmentally friendly and clean, and effectively avoiding oil pollution of the use scenario and the workpiece.

[0008] In the above-mentioned riveting tooling device for a pulley bearing nut assembly of an automotive rear-wheel steering system, the lever arm includes a rod body. A riveting plate is welded to the bottom of the inner side of the rod body. Mounting holes and right-angle holes are respectively formed on the surface of the rod body. In practical applications, by setting the mounting holes and the right-angle holes, it is convenient to install the cylindrical pin and the tension spring.

[0009] In the above-mentioned riveting tooling device for a pulley bearing nut assembly of an automotive rear-wheel steering system, guide slide rods are fixedly connected to both the left and right sides of the top of the first fixed plate. The tops of the guide slide rods penetrate through the positioning plate and are slidably connected. A pressing groove is riveted on the top surface of the workpiece body. In practical applications, by setting the guide slide rods, it has the function of limiting and guiding, enabling the positioning plate to move more smoothly during the up and down movement and avoiding tilting.

[0010] In the above-mentioned riveting tooling device for a pulley bearing nut assembly of an automotive rear-wheel steering system, flange supports are bolted to both the left and right sides of the top of the bottom plate. A fastening nut is threadedly sleeved on the top of the guide rod screw. In practical applications, by setting the flange supports, the bottom of the guide rod screw can be inserted into the inside for fixed installation.

[0011] In the above-mentioned riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system, locking plates are fixedly connected to the left and right sides of the top and bottom of the second fixed plate. The top of the guide rod screw sequentially penetrates through the upper and lower locking plates and is fixedly connected by bolts. In practical applications, by setting the locking plates, the second fixed plate can be fixedly connected to the guide rod screw by tightening the bolts, and the second fixed plate can be removed from the surface of the guide rod screw after loosening the bolts.

[0012] In the above-mentioned riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system, a through-opening is provided at the top of the second fixed plate, and a cylindrical pin is movably connected through the inner walls of the lever arm and the force arm bracket. In practical applications, by setting the through-opening, it is convenient for the lever arm to penetrate through the second fixed plate.

[0013] In the above-mentioned riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system, a dust-proof cover is fixedly connected between the top of the second fixed plate and the top plate, and a cover plate is connected to the front side of the dust-proof cover by a hinge. In practical applications, by setting the dust-proof cover, it can prevent external dust from adhering to the surface of the components and affecting the use.

[0014] Compared with the prior art, the advantages of this riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system are as follows: during the working process, it has an increased pushing force of the air cylinder, can adapt to more application scenarios, improves practicability, and is more energy-saving, environmentally friendly and clean, effectively avoiding the advantages of oil pollution of the use scenario and the workpiece. Brief Description of the Drawings

[0015] Figure 1 is an axonometric view of this riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system.

[0016] Figure 2 is a partial structure axonometric view of this riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system.

[0017] Figure 3 is a bottom axonometric view of the second fixed plate of this riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system.

[0018] Figure 4 is a top axonometric view of the lever arm and the force arm bracket of this riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system.

[0019] Figure 5 is an axonometric view of the lever arm of this riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system.

[0020] Figure 6It is an axonometric view of the workpiece body of the riveting tooling device for the pulley bearing nut assembly of the rear-wheel steering system of this automobile.

[0021] In the figure: 1. Base plate; 2. First cylinder; 3. Flange support; 4. Guide slide bar; 5. Workpiece body; 6. Cover plate; 7. Fastening nut; 8. Second cylinder; 9. Dust-proof cover shell; 10. Guide rod screw; 11. Positioning plate; 12. Conical tip; 13. Second fixing plate; 14. Positioning pin; 15. First fixing plate; 16. Locking card plate; 17. Lever arm; 18. Top plate; 19. Force arm bracket; 20. Through opening; 21. Cylindrical pin; 22. Tension spring; 23. Right-angle hole; 24. Rod body; 25. Mounting hole; 26. Riveting plate; 27. Pressing groove. Specific implementation mode

[0022] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0023] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the riveting tooling device for the pulley bearing nut assembly of the rear-wheel steering system of this automobile includes a base plate 1, the top of the base plate 1 is fixedly connected with a first fixing plate 15, the top of the first fixing plate 15 is bolted with a first cylinder 2, the top of the first cylinder 2 is bolted with a positioning plate 11, the top of the positioning plate 11 is fixedly connected with a positioning pin 14, the workpiece body 5 is sleeved on the top of the positioning pin 14, the left and right sides of the top of the base plate 1 are both fixedly connected with guide rod screws 10, the surfaces of the guide rod screws 10 are respectively fixedly connected with a second fixing plate 13 and a top plate 18, the bottom of the second fixing plate 13 is bolted with a force arm bracket 19, the inner cavity of the force arm bracket 19 is movably connected with a lever arm 17, the top of the lever arm 17 penetrates to the top of the second fixing plate 13 and the surface thereof is movably connected through and is connected with a tension spring 22, the top of the top plate 18 is bolted with a second cylinder 8, and the output end of the second cylinder 8 penetrates to the bottom of the top plate 18 and is fixedly connected with a conical tip 12.

[0024] The lever arm 17 includes a rod body 24, the bottom of the inner side of the rod body 24 is welded with a riveting plate 26, and the surface of the rod body 24 is respectively provided with a mounting hole 25 and a right-angle hole 23.

[0025] The left and right sides of the top of the first fixing plate 15 are both fixedly connected with guide slide bars 4, the tops of the guide slide bars 4 penetrate through the positioning plate 11 and are slidably connected, and a pressing groove 27 is riveted on the top of the surface of the workpiece body 5.

[0026] On both the left and right sides of the top of the bottom plate 1, flange supports 3 are connected by bolts, and a fastening nut 7 is threadedly sleeved on the top of the guide rod screw 10.

[0027] On both the left and right sides of the top and bottom of the second fixing plate 13, locking plates 16 are fixedly connected, and the top of the guide rod screw 10 sequentially passes through the upper and lower two locking plates 16 and is fixedly connected by bolts.

[0028] A through opening 20 is formed in the top of the second fixing plate 13, and a cylindrical pin 21 is movably connected through between the inner walls of the lever arm 17 and the force arm frame 19.

[0029] A dust-proof cover 9 is fixedly connected between the top of the second fixing plate 13 and the top plate 18, and a cover plate 6 is connected by a hinge on the front side of the dust-proof cover 9.

[0030] During actual manufacturing, the workpiece body 5 is placed on the top of the positioning plate 11. The three positioning pins 14 on the top limit the workpiece body 5 to prevent rotation. Then, control the first cylinder 2 to push the positioning plate 11 upward to push the workpiece body 5 to the middle of the three lever arms 17. Control the output end of the second cylinder 8 to extend to push the conical tip 12 downward, causing the upper ends of the three lever arms 17 to open outward. Due to the ingenious lever structure, the lower ends of the three lever arms 17 contract accordingly, and the riveting pressing plate 26 presses the outer diameter of the workpiece body 5. Under the action of pressure, it deforms and is embedded into the threaded shaft, successfully completing the extrusion and riveting. Finally, the second cylinder 8 and the first cylinder 2 reset. After the conical tip 12 moves upward, the tension spring 22 is tightened, causing the three lever arms 17 to return to the open state. In this way, it circulates in a cycle and continues to efficiently rivet the next workpiece in an orderly manner.

[0031] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A riveting tooling device for a pulley bearing nut assembly of an automobile rear-wheel steering system, comprising a bottom plate (1), characterized in that: A first fixing plate (15) is fixedly connected to the top of the bottom plate (1). A first cylinder (2) is bolted to the top of the first fixing plate (15). A positioning plate (11) is bolted to the top of the first cylinder (2). A positioning pin (14) is fixedly connected to the top of the positioning plate (11). A workpiece body (5) is sleeved on the top of the positioning pin (14). Guide screw rods (10) are fixedly connected to both the left and right sides of the top of the bottom plate (1). A second fixing plate (13) and a top plate (18) are respectively fixedly connected to the surfaces of the guide screw rods (10). A force arm bracket (19) is bolted to the bottom of the second fixing plate (13). A lever arm (17) is movably connected to the inner cavity of the force arm bracket (19). The top of the lever arm (17) penetrates to the top of the second fixing plate (13) and a tension spring (22) is movably connected through the surface thereof. A second cylinder (8) is bolted to the top of the top plate (18). The output end of the second cylinder (8) penetrates to the bottom of the top plate (18) and is fixedly connected to a conical tip (12).

2. A riveting tooling device for a pulley bearing nut assembly of an automotive rear wheel steering system according to claim 1, characterized in that: The lever arm (17) includes a rod body (24). A riveting pressure plate (26) is welded to the bottom of the inner side of the rod body (24). Mounting holes (25) and right-angle holes (23) are respectively formed in the surface of the rod body (24).

3. A riveting tooling device for a pulley bearing nut assembly of an automotive rear-wheel steering system according to claim 1, characterized in that: Guide slide rods (4) are fixedly connected to both the left and right sides of the top of the first fixing plate (15). The tops of the guide slide rods (4) penetrate the positioning plate (11) and are slidably connected. A pressing groove (27) is riveted to the top of the surface of the workpiece body (5).

4. A riveting tooling device for a pulley bearing nut assembly of an automotive rear-wheel steering system according to claim 1, characterized in that: Flange supports (3) are bolted to both the left and right sides of the top of the bottom plate (1). A fastening nut (7) is threadedly sleeved on the top of the guide screw rod (10).

5. The riveting tooling device for the pulley bearing nut assembly of an automotive rear-wheel steering system according to claim 1, characterized in that: Locking plates (16) are fixedly connected to both the left and right sides of the top and bottom of the second fixing plate (13). The top of the guide screw rod (10) sequentially penetrates through the upper and lower locking plates (16) and is fixedly connected by bolts.

6. A riveting tooling device for a pulley bearing nut assembly of an automotive rear-wheel steering system according to claim 1, characterized in that: A through opening (20) is formed in the top of the second fixing plate (13). A cylindrical pin (21) is movably connected through the inner walls of the lever arm (17) and the force arm bracket (19).

7. A riveting tooling device for a pulley bearing nut assembly of an automotive rear-wheel steering system according to claim 1, characterized in that: A dust-proof cover shell (9) is fixedly connected between the top of the second fixing plate (13) and the top plate (18). A cover plate (6) is hinged to the front side of the dust-proof cover shell (9).

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