Rear wheel cover fixing device

Abstract

The utility model relates to a rear wheel cover fixing device which comprises a rack and a clamping mechanism. A clamping slide rail is transversely arranged on the rack; a first fixed disc is vertically arranged on the rack; the clamping mechanism comprises a support, a first air cylinder and a second air cylinder. The support is connected with the rack in a sliding mode through the clamping sliding rail. The first cylinder is connected with the bracket; the second air cylinder is connected with the telescopic end of the first air cylinder; the first air cylinder is vertically arranged; the second air cylinder is transversely arranged and is perpendicular to the first fixing disc. The telescopic end of the first air cylinder is connected with the second air cylinder through an elastic telescopic rod. The telescopic end of the second air cylinder is connected with the abutting block and the clamping block through an elastic telescopic rod. The abutting block makes contact with the first fixing disc. The clamping blocks make contact with the workpiece on the first fixing disc. The positions of the clamping blocks in the transverse direction and the vertical direction can be flexibly adjusted through stretching and retracting of the first air cylinder and the second air cylinder, and the clamping blocks are made to be attached to a workpiece.

Description

Technical Field

[0001] This utility model relates to the field of automotive rear wheel cover processing technology, and in particular to a rear wheel cover fixing device. Background Technology

[0002] Rear wheel arches, as part of the car's body structure, effectively reduce noise generated by tire-road friction, especially at high speeds.

[0003] When cutting and welding rear wheel covers for automobiles, it is necessary to fix their position. Different models and specifications of rear wheel covers have different thicknesses due to variations in raw materials, design requirements, and manufacturing processes. This change in thickness alters the vehicle's center of gravity. Therefore, clamping and fixing these different models and specifications of rear wheel covers requires changing the clamping device to ensure stability. This replacement of the clamping device reduces overall production efficiency.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a rear wheel cover fixing device that can stably clamp rear wheel covers of different models and specifications.

[0006] The technical solution of this utility model is as follows:

[0007] A rear wheel arch fixing device, the rear wheel arch fixing device including a frame and a clamping mechanism;

[0008] The frame is provided with a clamping slide rail in the horizontal direction; the frame is provided with a first fixing plate in the vertical direction.

[0009] The clamping mechanism includes a bracket, a first cylinder, and a second cylinder; the bracket is slidably connected to the frame via the clamping slide rail; the first cylinder is connected to the bracket; the second cylinder is connected to the telescopic end of the first cylinder; the first cylinder is vertically arranged; the second cylinder is horizontally arranged and perpendicular to the first fixing plate.

[0010] The first cylinder's telescopic end is connected to the second cylinder via an elastic telescopic rod; the second cylinder's telescopic end is connected to an abutment block and a clamping block via an elastic telescopic rod; the abutment block contacts the first fixed plate; and the clamping block contacts the workpiece on the first fixed plate.

[0011] A further technical solution is that the elastic telescopic rod includes an outer cylinder, an inner core, and an elastic element; the inner core is disposed in a blind hole of the outer cylinder; and an elastic element is disposed between the inner core and the bottom of the outer cylinder.

[0012] A further technical solution is that a guide groove is formed on the inner core; a protrusion is provided on the inner wall of the outer cylinder; and the protrusion is engaged in the guide groove.

[0013] A further technical solution is that a connecting block is provided on the elastic telescopic rod; the abutment block is rotatably connected to the connecting block; and the clamping block is connected to the connecting block through a connecting rod.

[0014] A further technical solution is that the abutment block includes a left extension and a right extension arranged laterally; a gap is provided between the left extension and the right extension; the abutment block contacts the first fixed plate through the left extension and the right extension.

[0015] A further technical solution is that two clamping mechanisms are provided; the two clamping mechanisms are simultaneously slidably arranged on the actual clamping slide rail.

[0016] A further technical solution is that a fixing frame is also provided on the frame; a second fixing plate is provided on the fixing frame; the second fixing plate is parallel to the first fixing plate; suction cups are provided facing each other on the first fixing plate and the second fixing plate.

[0017] A further technical solution is that a fixed slide rail is also provided on the frame; the fixed slide rail is perpendicular to the first fixed plate; the fixed frame is slidably connected to the frame through the fixed slide rail.

[0018] A further technical solution is that a support block is provided on the frame below the first fixed plate; the support block supports the workpiece; and a limiting block is also provided on the first fixed plate to support contact with the workpiece.

[0019] The beneficial technical effects of this utility model are as follows:

[0020] (1) The rear wheel cover fixing device of this utility model is equipped with a clamping mechanism. The clamping mechanism is connected to the frame through a clamping slide rail. Sliding the clamping mechanism along the clamping slide rail can drive the clamping mechanism to move laterally to hold the rear wheel cover at different positions in the horizontal direction. The clamping mechanism includes a first cylinder and a second cylinder arranged vertically. By extending and retracting the first cylinder and the second cylinder, the position of the clamping block in the horizontal and vertical directions can be flexibly adjusted so that the clamping block fits the workpiece. At the same time, elastic telescopic rods are provided on the telescopic rods of the first cylinder and the second cylinder. The elastic telescopic rods give the clamping block a certain elasticity. When clamping rear wheel covers of different specifications, the clamping block can adaptively clamp according to the shape of the rear wheel cover of the car, providing a stable clamping force. At the same time, adjusting the position of the clamping block by means of the clamping slide rail, the first cylinder and the second cylinder makes adjustment simpler and more convenient.

[0021] (2) Furthermore, the elastic telescopic rod is provided with guide grooves and protrusions to ensure the stability of the inner core when it extends and retracts along the outer cylinder, thereby improving the stability of the entire clamping mechanism.

[0022] (3) Furthermore, two clamping mechanisms are simultaneously installed on the clamping slide rail. The two clamping mechanisms work together to fix the position of the rear wheel arch of the car and increase the stability of the clamping. Attached Figure Description

[0023] Figure 1 A three-dimensional structural schematic diagram of the rear wheel arch fixing device of this utility model is shown.

[0024] Figure 2 A three-dimensional structural diagram of the clamping mechanism in the rear wheel cover fixing device of this utility model is shown.

[0025] Figure 3 A cross-sectional view of the elastic telescopic rod in the rear wheel arch fixing device of this utility model is shown.

[0026] Marked in the attached diagram:

[0027] 1. Frame; 11. Clamping slide rail; 12. Fixed slide rail; 13. Support block; 2. First fixed plate; 21. Suction cup; 22. Limiting block; 3. Clamping mechanism; 31. Bracket; 32. First cylinder; 33. Second cylinder; 34. Connecting block; 341. Abutting block; 342. Left extension; 343. Right extension; 35. Clamping block; 351. Connecting rod; 4. Elastic telescopic rod; 41. Outer cylinder; 411. Protrusion; 412. Blind hole; 42. Inner core; 421. Guide groove; 43. Elastic element; 5. Fixed frame; 6. Second fixed plate. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0029] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0030] Figure 1 A three-dimensional structural schematic diagram of the rear wheel arch fixing device of this utility model is shown. Figure 2 A three-dimensional structural diagram of the clamping mechanism in the rear wheel cover fixing device of this utility model is shown. Figure 3 A cross-sectional view of the elastic telescopic rod in the rear wheel arch fixing device of this utility model is shown. Please refer to... Figure 1 , Figure 2 and Figure 3 The rear wheel arch fixing device includes a frame 1 and a clamping mechanism 3. A clamping slide rail 11 is horizontally arranged on the frame 1. A first fixing plate 2 is vertically arranged on the frame 1. The clamping mechanism 3 includes a bracket 31, a first cylinder 32, and a second cylinder 33. The bracket 31 is slidably connected to the frame 1 via the clamping slide rail 11. In this embodiment, the first cylinder 32 and the second cylinder 33 can be commercially available STMB series slide cylinders. The first cylinder 32 is connected to the bracket 31. The second cylinder 33 is connected to the telescopic end of the first cylinder 32. The first cylinder 32 is vertically arranged. The second cylinder 33 is horizontally arranged and perpendicular to the first fixing plate 2. The clamping mechanism 3 is connected to the frame 1 via the clamping slide rail 11. Sliding the clamping mechanism 3 along the clamping slide rail 11 can drive the clamping mechanism 3 to move horizontally, thereby abutting and clamping the rear wheel arch at different horizontal positions. The clamping mechanism 3 also includes a vertically arranged first cylinder 32 and second cylinder 33. By extending and retracting the first cylinder 32 and the second cylinder 33, the lateral and vertical positions of the clamping block 35 can be flexibly adjusted to ensure that the clamping block 35 fits snugly against the rear wheel arch of the car. Meanwhile, elastic telescopic rods 4 are provided on the extension rods of the first cylinder 32 and the second cylinder 33.

[0031] The telescopic end of the first cylinder 32 is connected to the second cylinder 33 via an elastic telescopic rod 4. The telescopic end of the second cylinder 33 is connected to the abutment block 341 and the clamping block 35 via the elastic telescopic rod 4. The abutment block 341 contacts the first fixed plate 2. The clamping block 35 abuts against and clamps the rear wheel cover of the car on the first fixed plate 2. The elastic telescopic rod 4 gives the clamping block 35 a certain degree of elasticity, allowing it to adaptively clamp different sizes of rear wheel covers according to their shape, providing a stable clamping force. The position of the clamping block 35 can be adjusted by using the clamping slide rail 11, the first cylinder 32, and the second cylinder 33, making adjustment simpler and more convenient.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3 The elastic telescopic rod 4 includes an outer cylinder 41, an inner core 42, and an elastic element 43. The inner core 42 is disposed within a blind hole 412 of the outer cylinder 41. The elastic element 43 is disposed between the bottom of the inner core 42 and the outer cylinder 41. When clamping rear wheel covers of cars with different thicknesses and shapes, the elastic element 43 can be compressed and contracted, shortening the length of the elastic telescopic rod 4. The elastic force of the elastic element 43 can also push the inner core 42 out, extending the length of the telescopic rod. This ensures that the clamping block 35 conforms to the surface of the rear wheel cover of the car, stably clamping the rear wheel cover.

[0033] Preferably, a guide groove 421 is formed on the inner core 42. A protrusion 411 is provided on the inner wall of the outer cylinder 41. The protrusion 411 is engaged in the guide groove 421. When the inner core 42 extends or retracts from the outer cylinder 41, the protrusion 411 slides along the guide groove 421 and restricts the position between the outer cylinder 41 and the inner core 42, thereby improving the stability of the inner core 42 when it extends or retracts along the outer cylinder 41, and thus improving the stability of the entire clamping mechanism 3.

[0034] More preferably, the second cylinder 33 is connected to a connecting block 34 via an elastic telescopic rod 4. An abutment block 341 is rotatably connected to the connecting block 34, and the abutment block 341 connects the second cylinder 33 and the elastic telescopic rod 4 via the connecting block 34. A clamping block 35 is connected to the connecting block 34 via a connecting rod 351, thereby connecting the second cylinder 33 and the elastic telescopic rod 4.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 The abutment block 341 includes a left extension 342 and a right extension 343 arranged laterally. A gap is provided between the left extension 342 and the right extension 343. The abutment block 341 abuts against and clamps the rear wheel arch of the vehicle through the left extension 342 and the right extension 343. The gap reduces the contact area between the abutment block 341 and the rear wheel arch of the vehicle, reducing the impact of unevenness on the surface of the rear wheel arch of the vehicle on the abutment block 341.

[0036] In this embodiment, two clamping mechanisms 3 are provided. The two clamping mechanisms 3 work together to fix the position of the rear wheel arch of the car and increase the stability of the clamping.

[0037] Please refer to Figure 1 , Figure 2 and Figure 3 The frame 1 is also equipped with a fixing bracket 5. A second fixing plate 6 is mounted on the fixing bracket 5. The second fixing plate 6 is parallel to the first fixing plate 2. Suction cups 21 are arranged facing each other on the first fixing plate 2 and the second fixing plate 6. The rear wheel cover is clamped and fixed by the first fixing plate 2 and the second fixing plate, which improves the clamping stability of the rear wheel cover.

[0038] Preferably, the frame 1 is further provided with a fixed slide rail 12. The fixed slide rail 12 is perpendicular to the first fixed plate 2. The fixed frame 5 is slidably connected to the frame 1 via the fixed slide rail 12. By sliding the fixed frame 5 along the fixed slide rail 12, the distance between the second fixed plate 6 and the second fixed plate 6 can be quickly adjusted to clamp or remove the rear wheel cover.

[0039] Please refer to Figure 1 , Figure 2 and Figure 3 A support block 13 is installed on the frame 1 below the first fixed plate 2. The support block 13 supports the workpiece. A limiting block 22 is also installed on the first fixed plate 2 to support the contacting workpiece. The support block 13, the limiting block 22, and the suction cup 21 cooperate to completely fix the position of the rear wheel cover.

[0040] The specific workflow of this utility model is as follows:

[0041] When clamping the rear wheel cover, first move the rear wheel cover onto the first fixing plate 2, and fix its position using the support block 13 and the limiting block 22. Then slide the fixing bracket 5 along the fixing slide rail 12 until the suction cup 21 on the second fixing plate 6 contacts the rear wheel cover. At this point, the rear wheel cover is clamped by the first fixing plate 2 and the second fixing plate 6. Then drive the first cylinder 32 and the second cylinder 33 to move the clamping block 35 and the abutment block 341 to the preset position and abut against the rear wheel cover. At this time, the elastic telescopic rod 4 on the second cylinder 33 is under pressure. The fixing of the rear wheel cover is completed.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A rear wheel arch fixing device, characterized in that, The rear wheel arch fixing device includes a frame and a clamping mechanism; a clamping slide rail is horizontally arranged on the frame; a first fixing plate is vertically arranged on the frame; The clamping mechanism includes a bracket, a first cylinder, and a second cylinder; the bracket is slidably connected to the frame via the clamping slide rail; the first cylinder is connected to the bracket; the second cylinder is connected to the telescopic end of the first cylinder; the first cylinder is vertically arranged; the second cylinder is horizontally arranged and perpendicular to the first fixing plate. The first cylinder's telescopic end is connected to the second cylinder via an elastic telescopic rod; the second cylinder's telescopic end is connected to an abutment block and a clamping block via an elastic telescopic rod; the abutment block contacts the first fixed plate; and the clamping block contacts the workpiece on the first fixed plate.

2. The rear wheel arch fixing device as described in claim 1, characterized in that: The elastic telescopic rod includes an outer cylinder, an inner core, and an elastic element; the inner core is disposed in a blind hole in the outer cylinder; and the elastic element is disposed between the bottom of the inner core and the outer cylinder.

3. The rear wheel arch fixing device as described in claim 2, characterized in that: The inner core has a guide groove; the inner wall of the outer cylinder has a protrusion; the protrusion is engaged in the guide groove.

4. The rear wheel arch fixing device as described in claim 1, characterized in that: A connecting block is provided on the elastic telescopic rod; the abutment block is rotatably connected to the connecting block; the clamping block is connected to the connecting block through a connecting rod.

5. The rear wheel arch fixing device as described in claim 1, characterized in that: The abutment block includes a left extension and a right extension arranged laterally; a gap is provided between the left extension and the right extension; the abutment block contacts the first fixed plate through the left extension and the right extension.

6. The rear wheel arch fixing device as described in claim 1, characterized in that: Two clamping mechanisms are provided; both clamping mechanisms are simultaneously slidably mounted on the actual clamping slide rail.

7. The rear wheel arch fixing device as described in claim 1, characterized in that: The frame is also provided with a fixing frame; a second fixing plate is provided on the fixing frame; the second fixing plate is parallel to the first fixing plate; suction cups are provided on the first fixing plate and the second fixing plate facing each other.

8. The rear wheel arch fixing device as described in claim 7, characterized in that: The frame is also provided with a fixed slide rail; the fixed slide rail is perpendicular to the first fixed plate; the fixed frame is slidably connected to the frame through the fixed slide rail.

9. The rear wheel arch fixing device as described in claim 1, characterized in that: A support block is provided on the frame below the first fixed plate; the support block supports the workpiece; a limiting block is also provided on the first fixed plate to support contact with the workpiece.

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