A right rear suspension cushion assembly and its assembly method

Abstract

This invention discloses a right rear suspension cushion assembly and its assembly method, relating to the field of automotive suspension system technology. It includes a body assembly, a first bracket, and a second bracket. The body assembly includes a body bracket with a first and a second slot at its corner, the opening directions of which are perpendicular to each other. The first bracket has a positioning block adapted to the first slot, and an extension on one side of the positioning block. The second bracket includes a cylindrical body with limiting parts connected to both ends. The cylindrical body engages with the second slot and contacts the extension. Rotating the second bracket allows the limiting block to simultaneously limit the first bracket and the body bracket. The components of this invention are interlocked and can form limiting positions in six directions, facilitating disassembly, assembly, and component replacement, and reducing the cost of developing a complete mold.

Description

Technical Field

[0001] This invention relates to the field of automotive suspension system technology, and in particular to a right rear suspension cushion assembly and its assembly method. Background Technology

[0002] With the development of automobiles towards higher speeds and lighter weights, vibration and noise problems are becoming increasingly prominent, leading to increasingly stringent requirements for vibration and noise control. For the suspension system connecting the powertrain and the body, which also serves to isolate and dampen vibrations, it has a certain impact on the overall NVH performance of the vehicle; therefore, there are increasingly more requirements for its layout and modal characteristics. During project development, new powertrain configurations or adjustments are frequently required, necessitating the addition or removal of mounting functions from the original suspension. In traditional connection structures, the mounting point location is integrated with the connection structure; adjustments to parameters such as location and installation requirements will lead to changes in the overall connection structure, requiring modifications or redevelopment of molds, resulting in higher engineering costs. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a right rear suspension soft pad assembly and its assembly method. The components are snap-fitted together and can form a limit in six directions, which facilitates disassembly and component replacement and reduces the cost of overall mold development.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0005] In a first aspect, embodiments of the present invention provide a right rear suspension cushion assembly, including a body assembly, a first bracket, and a second bracket. The body assembly includes a body bracket, and a first slot and a second slot are provided at the corner of the body bracket. The opening directions of the first slot and the second slot are perpendicular to each other. The first bracket is provided with a positioning block adapted to the first slot, and an extension is provided on one side of the positioning block.

[0006] The second bracket includes a cylindrical body, with limiting parts connected to both ends of the cylindrical body; the cylindrical body cooperates with the second slot and contacts the extended part; rotating the second bracket can cause the limiting block to simultaneously limit the first bracket and the main body bracket.

[0007] As a further implementation, the main body bracket is provided with a block structure on the outer side of the first slot, and the surface of the block structure facing the rubber main spring mounting side is surface B;

[0008] The first bracket has a B' surface on the side opposite to the extension, and the B' surface fits against the B surface to form a Z-direction limiting.

[0009] As a further implementation, an open sleeve is installed at the end of the first bracket opposite to the positioning block, and the open sleeve has a spring-loaded deformation force.

[0010] As a further implementation, the cross-section of the second slot is arc-shaped, and the axial direction of the second groove is perpendicular to the axis of the rubber main spring installed at one end of the main body bracket.

[0011] As a further implementation, the limiting part is eccentrically installed at the end of the cylindrical body, and the inner surface of the limiting part is an X-direction limiting surface, which is used to fit the surface of the body bracket.

[0012] As a further implementation, the surface of the limiting part corresponding to the connection of the cylindrical body is surface A, and the surface of the main body bracket facing the first slot is surface A', with surface A and surface A' being flush.

[0013] As a further implementation, the first slot is a cuboid groove.

[0014] As a further implementation, the mounting hole of the main body bracket is provided with a positioning pin, and the positioning pin and the mounting hole are interference fit.

[0015] As a further implementation, the main body bracket is vulcanized together with the rubber main spring and the shaft core, and the end of the rubber main spring is provided with a flange that fits into the main body bracket.

[0016] Secondly, embodiments of the present invention also provide a method for assembling a right rear suspension cushion assembly, comprising:

[0017] The cylindrical body of the second bracket is inserted into the second slot of the main body bracket from the Z+ direction. The X-direction limiting surface of the second bracket is in contact with the assembly surfaces at both ends of the second slot, and the A-side of the second bracket is aligned with the A' side of the main body bracket.

[0018] The positioning block of the first bracket is inserted into the first slot of the main body bracket, and the Z-direction limiting face of the first bracket is aligned with the opening of the second slot and fits against the cylindrical body; the B' surface of the first bracket fits against the B surface of the main body bracket.

[0019] The second bracket is rotated clockwise along the axis of the cylindrical body so that the limiting part of the second bracket simultaneously restricts the X-direction end face between the first bracket and the body.

[0020] The beneficial effects of this invention are as follows:

[0021] The main body assembly of the present invention is provided with a first slot and a second slot. The first bracket engages with the first slot, and the second bracket engages with the second slot. The extension of the first bracket contacts the cylindrical body of the second bracket to form a limit in the Z+ direction. The B' surface of the first bracket engages with the B surface of the main body bracket 11 to form a limit in the Z- direction. The positioning block of the first bracket is provided in the first slot to form limits in the Y+ and Y- directions. By rotating the second bracket, its limiting part forms an X-direction limit on the first bracket and the main body bracket. Therefore, six directions of limit are formed, so that the main body assembly is firmly assembled with the first bracket and the second bracket. Moreover, it can be quickly disassembled by simply rotating the second bracket in the opposite direction, which improves the loading and unloading efficiency, facilitates the replacement of individual parts, eliminates the need to redevelop the overall structure mold, and reduces production costs. Attached Figure Description

[0022] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0023] Figure 1 This is a front view of the main body assembly according to one or more embodiments of the present invention;

[0024] Figure 2 This is a schematic diagram of the back of the main body assembly according to one or more embodiments of the present invention;

[0025] Figure 3 This is a front view of the first bracket according to one or more embodiments of the present invention;

[0026] Figure 4 This is a schematic diagram of the back of the first bracket according to one or more embodiments of the present invention;

[0027] Figure 5 This is a perspective view of the second support according to one or more embodiments of the present invention;

[0028] Figure 6 This is a schematic diagram of the assembly of the second bracket and the main body assembly according to one or more embodiments of the present invention;

[0029] Figure 7 This is a schematic diagram of the assembly of the first bracket, the second bracket, and the main body according to one or more embodiments of the present invention;

[0030] Figure 8 This is a schematic diagram of the right rear suspension cushion assembly according to one or more embodiments of the present invention.

[0031] Among them, 1. Body assembly, 11. Body bracket, 12. Rubber main spring, 13. Flanged edge, 14. Shaft core, 15. First slot, 16. Second slot, 17. Surface A', 18. Positioning pin, 19. Surface B;

[0032] 2. First bracket; 21. Open sleeve; 22. Positioning block; 23. Extension; 24. Z+ direction limiting surface; 25. B' surface; 26. Rib plate.

[0033] 3. Second support; 31. Columnar main body; 32. Limiting part; 33. Surface A; 34. X-direction limiting surface. Detailed Implementation

[0034] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0035] Example 1:

[0036] This embodiment provides a right rear suspension cushion assembly, including a main body assembly 1, a first bracket 2, and a second bracket 3. The first bracket 2 and the second bracket 3 are detachably connected to the main body assembly 1 to form an assembly structure, changing the original integrated structure of mounting bosses, assembly holes, etc. with the main body assembly 1, so that the parts can be replaced or modified individually, avoiding the need to redevelop the entire mold and reducing costs.

[0037] like Figure 1 and Figure 2 As shown, the main body assembly 1 is a soft pad assembly, which includes a main body bracket 11, a rubber main spring 12 and a shaft core 14. The main body bracket 11, the rubber main spring 12 and the shaft core 14 are bonded together by a vulcanization process. Compared with the press-fit structure, the outer tube structure is saved, thus achieving the purpose of cost reduction.

[0038] The main support 11 is a cast support with an L-shaped structure that has not been adjusted. The rubber main spring 12 is installed at one end of the main support 11. The main body of the rubber main spring 12 is a cylindrical structure with flanges 13 at both ends, forming an I-shaped structure in the longitudinal section of the rubber main spring 12. The flanges 13 of the rubber main spring 12 are fitted and fixed to the mounting surface of the main support 11, which can absorb the impact energy during movement and avoid the discomfort caused by abnormal noise. Furthermore, since it is vulcanized as a whole, no manual assembly is required, saving assembly steps and time.

[0039] like Figure 2As shown, the mounting hole of the main body bracket 11 is equipped with a locating pin 18. The locating pin 18 and the mounting hole are interference-fitted. The locating pin 18 plays a guiding and positioning role during assembly. The fit between the locating pin 18 and the main body bracket 11 produces two hole diameters in the assembly direction. The mounting hole has a large diameter, making it easy to insert the bolt during assembly; the locating pin 18 has a small diameter, allowing the bolt to be inserted into the threaded hole more accurately, avoiding deviations caused by clearance size fit.

[0040] The main body bracket 11 has a first slot 15 and a second slot 16 at its corner. The first slot 15 is used to assemble the first bracket 2, and the second slot 16 is used to assemble the second bracket 3. The first slot 15 is located on the outside of the main body bracket 11 and is on the same side as the flange 13 at one end of the rubber main spring 12. The setting direction of the first slot 15 is 90° with the setting direction of the second slot 16.

[0041] In this embodiment, the first slot 15 is a cuboid groove, and its opening direction is perpendicular to the axial direction of the rubber main spring 12. By setting the first slot 15, the body support 11 forms an L-shaped block structure at the corner, and the surface of this block structure facing the rubber main spring 12 is surface B 19. The surface of the body support 11 that connects with the block structure is surface A' 17. The cross-section of the second slot 16 is a concave arc shape, and the axial direction of the second slot 16 is perpendicular to both the axial direction of the rubber main spring 12 and the setting direction of the first slot 15.

[0042] like Figure 3 and Figure 4 As shown, the first bracket 2 has an overall L-shaped structure, and has an arc-shaped transition section at the corner of the L-shaped structure; one end of the first bracket 2 is provided with a mounting hole, and an open sleeve 21 is installed in the mounting hole, with the open sleeve 21 facing the inside of the first bracket 2; the other end of the first bracket 2 is provided with a positioning block 22, the shape of the positioning block 22 is adapted to the shape of the first slot 15, so that the positioning block 22 can be locked in the first slot 15 to form a limit in the Y+ and Y- directions.

[0043] Specifically, the positioning block 22 is a protrusion structure extending from the end face of the first bracket 2, and is located at the middle of the end face of the first bracket 2. The positioning block 22 has an extension 23 on one side along the Z+ direction, and the extension length of the extension 23 along the Y direction is greater than the extension length of the positioning block 22. There is a certain distance between the positioning block 22 and the extension 23, forming a groove between them. This allows the first bracket 2 to be assembled into the first slot 15, while the extension 23 and the second bracket 3 are mutually restricted. The surface of the extension 23 facing the positioning block 22 is a Z+ direction limiting surface 24, which is used to restrict the second bracket 3 in the Z+ direction.

[0044] like Figure 4As shown, the back of the first bracket 2 is provided with a rib plate 26, which is located on both sides of the first bracket 2 in the Z direction. Due to the provision of the protrusion 23, the length of the rib plate 26 in the Z+ direction is greater than the length of the rib plate 26 in the Z- direction. The surface of the short rib plate 26 facing the positioning block 22 is designated as surface B' 25. Surface B' 25 cooperates with surface B 19 of the main bracket 11 to provide limiting in the Z- direction.

[0045] The open sleeve 21 is a sleeve structure with a circumferential opening that penetrates the side wall of the sleeve. The open sleeve 21 has a certain springback deformation force; in its free state, its diameter is slightly larger than the inner diameter of the mounting hole. During assembly, the open sleeve 21 is compressed so that its diameter is smaller than the inner diameter of the mounting hole, facilitating insertion into the mounting hole of the first bracket 2. After assembly, due to the springback of the material, an outward expansion force is generated, preventing the open sleeve 21 from falling off and achieving a secure assembly between the open sleeve 21 and the first bracket 2. Bolts are then installed inside the open sleeve 21. Because the axial force generated during bolt assembly is greater than the expansion force, the open sleeve 21 moves forward (towards the first bracket 2) and eventually fits against the assembly surface, offsetting the tolerances caused by the manufacturing process and ensuring full contact with the assembly surface of the first bracket 2, increasing the safety factor against slippage.

[0046] like Figure 5 As shown, the second bracket 3 includes a cylindrical body 31, with limiting parts 32 symmetrically installed at both ends of the cylindrical body 31. The cylindrical body 31 is adapted to the second slot 16 and can rotate within the second slot 16. By rotating the second bracket 3, the limiting parts 32 simultaneously contact the positioning block 22 of the first bracket 2 and the main body bracket 11, thereby simultaneously limiting the X-direction of both.

[0047] The shape of the limiting part 32 can be set according to actual installation requirements. In this embodiment, the cross-section of the limiting part 32 is square; of course, in other embodiments, the cross-section of the limiting part 32 can also be circular or other shapes. The limiting part 32 and the cylindrical body 31 are eccentrically installed, with the inner surface of the limiting part 32 as the X-direction limiting surface 34, and the surface of the limiting part 32 that is closer to the cylindrical body 31 and faces the first slot 15 during assembly as surface A 33. For the square limiting part 32, its surface A 33 does not exceed surface A' 17 of the main body bracket 11. In this embodiment, surface A 33 is flush with surface A' 17 to avoid affecting the cooperation between the positioning block 22 and the first slot 15.

[0048] In this embodiment, when assembling the main body assembly 1 with the first bracket 2 and the second bracket 3, the cylindrical body 31 of the second bracket 3 engages with the second slot 16 of the main body bracket 11, while the X-direction limiting surface 34 of the limiting part 32 is in contact with the main body bracket 11; the positioning block 22 of the first bracket 2 engages with the first slot 15 of the main body bracket 11, while the protruding part 23 of the first bracket 2 contacts the cylindrical body 31 of the second bracket 3, according to... Figure 7 With the indicated direction as a reference, the extended portion 23 is located on the upper side of the cylindrical body 31; then the second bracket 3 is rotated clockwise so that the X-direction limiting surface 34 of the second bracket 3 contacts the junction of the positioning block 22 and the main body bracket 11, so that the limiting portion 32 simultaneously plays the role of limiting the X-direction of the first bracket 2 and the main body bracket 11.

[0049] Through the above-mentioned cooperation method, six directions (X+, X-, Y+, Y-, Z+, Z-) are limited, so that the main body assembly 1 is firmly assembled with the first bracket 2 and the second bracket 3, and can be quickly disassembled by simply rotating the second bracket 3 in the opposite direction, thus improving the loading and unloading efficiency.

[0050] Example 2:

[0051] This embodiment provides an assembly method for the right rear suspension cushion assembly, based on the right rear suspension cushion assembly described in Embodiment 1, including the following steps:

[0052] Step 1: As Figure 6 As shown, the cylindrical body 31 of the second bracket 3 is placed into the second slot 16 of the main body bracket 11 from the Z+ direction according to the coordinate system shown in the figure. The X-direction limiting surface 34 of the second bracket 3 is locked on the assembly surface at both ends of the second slot 16, and the A surface 33 of the second bracket 3 is aligned with the A' surface 17 of the main body bracket 11.

[0053] Step Two: As Figure 7 As shown, the positioning block 22 of the first bracket 2 is aligned with the first slot 15 of the main body bracket 11 and inserted along the Y direction. The positioning block 22 engages with the first slot 15, providing limiting in the Y+ and Y- directions. At the same time, the Z-direction limiting surface of the first bracket 2 is aligned with the opening of the second slot 16 and fits against the cylindrical body 31, providing limiting in the Z+ direction for the second bracket 3. The B' surface 25 of the first bracket 2 fits against the B surface 19 of the main body bracket 11, providing limiting in the combined Z-direction.

[0054] Step 3: As Figure 8 As shown, the second bracket 3 is rotated clockwise along the axis of the cylindrical body 31, so that the two X-direction limiting surfaces 34 of the second bracket 3 are fixed on the two X-direction end faces after the positioning block 22 and the first slot 15 are engaged, thereby limiting the engagement slot combination in the X direction.

[0055] Through the above three steps, the right rear suspension cushion assembly is limited in all six directions, and the first bracket 2 is firmly assembled with the main body assembly 1. When disassembling, the above reverse operation can be performed to disassemble and remove the parts, which improves the overall assembly and disassembly efficiency and facilitates the replacement of parts.

[0056] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A right rear suspension cushion assembly, characterized in that, The system includes a main body assembly, a first bracket, and a second bracket. The main body assembly includes a main body bracket, and a first slot and a second slot are provided at the corners of the main body bracket. The opening directions of the first slot and the second slot are perpendicular to each other. The first bracket is provided with a positioning block that is adapted to the first slot, and an extension is provided on one side of the positioning block. The second bracket includes a cylindrical body, with limiting parts connected to both ends of the cylindrical body; the cylindrical body cooperates with the second slot and contacts the extended part; rotating the second bracket can cause the limiting block to simultaneously limit the first bracket and the main body bracket.

2. The right rear suspension cushion assembly according to claim 1, characterized in that, The main body bracket has a block structure formed on the outer side of the first slot, and the surface of the block structure facing the rubber main spring mounting side is surface B. The first bracket has a B' surface on the side opposite to the extension, and the B' surface fits against the B surface to form a Z-direction limiting.

3. A right rear suspension cushion assembly according to claim 1 or 2, characterized in that, An open sleeve is installed at the end of the first bracket opposite to the positioning block, and the open sleeve has a spring-loaded deformation force.

4. The right rear suspension cushion assembly according to claim 1, characterized in that, The second slot has an arc-shaped cross-section, and the axial direction of the second groove is perpendicular to the axis of the rubber main spring installed at one end of the main body bracket.

5. A right rear suspension cushion assembly according to claim 1 or 4, characterized in that, The limiting part is eccentrically installed at the end of the cylindrical body, and the inner surface of the limiting part is an X-direction limiting surface, which is used to fit the surface of the body bracket.

6. The right rear suspension cushion assembly according to claim 1, characterized in that, The surface of the limiting part corresponding to the connection of the cylindrical body is surface A, and the surface of the main body bracket facing the first slot is surface A'. Surface A and surface A' are flush.

7. A right rear suspension cushion assembly according to claim 1 or 6, characterized in that, The first slot is a rectangular groove.

8. The right rear suspension cushion assembly according to claim 1, characterized in that, The mounting hole of the main body bracket is equipped with a positioning pin, and the positioning pin and the mounting hole are interference fit.

9. A right rear suspension cushion assembly according to claim 1, characterized in that, The main body support is vulcanized together with the rubber main spring and the shaft core, and the end of the rubber main spring is provided with a flange that fits into the main body support.

10. A method for assembling a right rear suspension cushion assembly according to any one of claims 1-9, characterized in that, include: The cylindrical body of the second bracket is inserted into the second slot of the main body bracket from the Z+ direction. The X-direction limiting surface of the second bracket is in contact with the assembly surfaces at both ends of the second slot, and the A-side of the second bracket is aligned with the A' side of the main body bracket. The positioning block of the first bracket is inserted into the first slot of the main body bracket, and the Z-direction limiting face of the first bracket is aligned with the opening of the second slot and fits against the cylindrical body; the B' surface of the first bracket fits against the B surface of the main body bracket. The second bracket is rotated clockwise along the axis of the cylindrical body so that the limiting part of the second bracket simultaneously restricts the X-direction end face between the first bracket and the body.

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