An assembly structure absorbing vehicle body tolerances

Abstract

This invention provides an assembly structure that absorbs vehicle body tolerances, relating to the technical field of vehicle body assembly components. It includes a mounting cylinder, a fixed seat, a guide block, a first tie rod, a second tie rod, and an axial adjustment assembly. Fixed seats are fixedly installed at both ends of the mounting cavity inside the mounting cylinder. Two guide blocks are slidably installed inside the mounting cylinder. One end of the first tie rod passes through the fixed seat and is inserted into the guide block; the other end is rotatably connected to the second tie rod. A tension spring is sleeved on a section of the first tie rod between the fixed seat and the guide block. An axial adjustment assembly, which can be extended and retracted along the axis of the second tie rod, is provided at the end of the second tie rod. The axial adjustment assembly is used to adapt to vehicle body connecting parts and absorb assembly tolerances in the axial direction of the second tie rod. This invention can horizontally extend and retract to adapt to different vehicle body anchor point spacings, can adjust the angle and make fine adjustments in that angle direction, effectively absorb vehicle body assembly tolerances, adapt to installation on multiple vehicle models, and ensure stable assembly.

Description

Technical Field

[0001] This invention relates to the field of vehicle body assembly components technology, specifically an assembly structure that absorbs vehicle body tolerances. Background Technology

[0002] During the assembly process of existing vehicle interior accessories (such as interior hanging rods, clothes drying rods, roof crossbars, etc.), due to the influence of body stamping, welding and final assembly processes, the spacing of the anchor points on the top of the body of different models and different batches of the same model generally has manufacturing tolerances. Conventional fixed-length accessories cannot adaptively compensate for the spacing deviation. During installation, forced assembly is prone to cause component deformation, buckle breakage, or excessive assembly gaps, resulting in loosening and abnormal noise. It is difficult to achieve universal installation for multiple models, which greatly increases the development and inventory costs of parts.

[0003] Meanwhile, the installation angle and mounting plane of the body anchor points have positional deviations. Traditional hanging rods mostly use rigid straight rod structures with no angle adjustment capability. The connectors at both ends cannot be precisely aligned with the body anchor points, often resulting in misalignment and jamming. This makes on-site assembly difficult and leads to a high rework rate, seriously affecting assembly efficiency and the overall interior quality of the vehicle. In addition, most of the few adjustable structures on the market use snap-on adjustment, which has low adjustment precision and cumbersome operation. They cannot simultaneously absorb axial dimensional tolerances and angular installation deviations, and are prone to loosening and slippage after long-term use, making it difficult to guarantee assembly firmness and operational stability. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an assembly structure that absorbs vehicle body tolerances. A tension spring, in conjunction with a guide block and a first tie rod, enables elastic expansion and contraction in the horizontal direction, effectively absorbing horizontal assembly tolerances. Furthermore, by rotatably connecting the first and second tie rods, and with the axial adjustment component on the second tie rod, axial tolerances of the second tie rod at different angles can be absorbed.

[0005] To achieve its technical objectives, the present invention employs the following technical solution:

[0006] An assembly structure for absorbing vehicle body tolerances includes a mounting cylinder, a fixed seat, a guide block, a first tie rod, a second tie rod, and an axial adjustment assembly. The mounting cylinder has an internal mounting cavity, with fixed seats fixedly mounted at both ends. Two guide blocks are slidably mounted inside the mounting cylinder. One end of the first tie rod passes through the end of the mounting cylinder and the fixed seat and is fixedly inserted inside the guide block; the other end is rotatably connected to the second tie rod. A tension spring is sleeved on a section of the first tie rod between the fixed seat and the guide block, with both ends of the tension spring fixed to the guide block and the fixed seat, respectively. The end of the second tie rod is provided with the axial adjustment assembly, which is adjustable along its axial direction. The axial adjustment assembly is used to adapt to vehicle body connectors and absorb axial assembly tolerances of the second tie rod.

[0007] Preferably, the axial adjustment assembly includes a capped slide rod and an adjusting bolt. The vehicle body connector includes a first vehicle body mounting component. A cavity is provided at the end of the second tie rod. The rod body of the capped slide rod is movably inserted into the cavity. A limiting cap for limiting the position of the capped slide rod is provided at the beginning of the capped slide rod. The limiting cap and the first vehicle body mounting component are detachably snapped together. A limiting slide channel communicating with the cavity is spirally opened on the side wall of the second tie rod. The adjusting bolt passes through the limiting slide channel and is vertically threaded into the end of the capped slide rod. The spiral movement of the adjusting bolt along the limiting slide channel can drive the capped slide rod to rotate and move axially along the second tie rod.

[0008] More preferably, the side wall of the second pull rod is fitted with a screw sleeve, the side wall of the screw sleeve is provided with a through hole adapted to the adjusting bolt, the end of the adjusting bolt passes through the through hole and the limiting slide and is threaded into the end of the capped slide rod, the nut at the beginning and the side wall of the screw sleeve.

[0009] More preferably, the sidewall of the sleeve is provided with anti-slip texture along its axial direction.

[0010] Preferably, the axial adjustment assembly includes a capped screw and an adjusting sleeve, the body connecting component includes a second body mounting component, the second tie rod has a threaded groove at one end near its end, the inner wall of the threaded groove is threaded, the shaft of the capped screw is threaded into the threaded groove, and the first end of the capped screw is provided with a connecting cap for abutting against the inner wall of the second body mounting component; a section of the second tie rod has an external thread on its outer periphery, the adjusting sleeve is threaded onto the outer periphery of the second tie rod, and the adjusting sleeve has an annular outer edge at one end near the connecting cap, the upper wall of the annular outer edge and the lower wall of the connecting cap are in contact, and the annular outer edge is used to abut against the lower inner wall of the second body mounting component.

[0011] More preferably, the mounting sleeve includes a sleeve, a long outer shell, and mounting bases. The long outer shell has mounting bases facing each other at both ends. The two ends of the sleeve are fixedly connected to the edges of the two mounting bases. The fixing base is fixedly installed on the inner side of the two mounting bases and the bottom of the fixing base is provided with a hook. The lower wall of the sleeve is provided with a locking hole, and the hook is hooked into the locking hole.

[0012] More preferably, the upper wall of the elongated outer casing is provided with hook slots at intervals, the hook slots being used to restrict the position of the hooks.

[0013] More preferably, the lower wall of the elongated outer shell is provided with a protrusion along its axial direction, and the upper wall of the sleeve is provided with a groove that matches the protrusion.

[0014] More preferably, it also includes a leather sleeve fitted onto the side wall of the sleeve.

[0015] Preferably, the first pull rod and the second pull rod are rotatably connected by a pin.

[0016] The beneficial effects of this invention are as follows:

[0017] This invention achieves horizontal elastic expansion and contraction through a tension spring in conjunction with a guide block and a first tie rod. It can adapt to the spacing of anchor points on different vehicle models, effectively absorb horizontal assembly tolerances, and solve the problem of fixed-size parts not being able to be assembled universally.

[0018] This invention achieves flexible angle adjustment through the rotatable connection of the first and second tie rods. Combined with the precise micro-adjustment structure of the spiral limit slide, adjusting bolt, capped screw and adjusting sleeve, it can stably absorb axial assembly tolerances at different installation angles, making assembly and alignment more convenient, and significantly improving installation firmness, usage stability and universal compatibility with multiple vehicle models. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0020] Figure 2 This is a cross-sectional structural diagram of the mounting cylinder of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention;

[0022] Figure 4 yes Figure 3 A magnified view of part A in the middle;

[0023] Figure 5 yes Figure 3 A magnified view of part B in the middle section;

[0024] Figure 6 This is a schematic diagram of the disassembled structure of the second tie rod in Example 1;

[0025] Figure 7 This is a schematic cross-sectional view of the second tie rod in Example 1;

[0026] Figure 8 This is a schematic diagram of the bottom structure of the sleeve of the present invention;

[0027] Figure 9 This is an assembly diagram of the sleeve and the elongated outer shell of the present invention;

[0028] Figure 10 This is an assembly diagram of the first vehicle body mounting component and the second tie rod in Embodiment 1;

[0029] Figure 11This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0030] Figure 12 yes Figure 11 A magnified view of part C in the middle;

[0031] Figure 13 yes Figure 11 A magnified view of part D in the middle;

[0032] Figure 14 This is a schematic cross-sectional view of the second tie rod in Example 2;

[0033] Figure 15 This is a schematic diagram illustrating a usage scenario of the present invention.

[0034] Figure label:

[0035] 1. Mounting sleeve; 2. Long outer shell; 3. Sleeve; 4. Mounting base; 5. Guide block; 6. Fixing base; 7. Tension spring; 8. First pull rod; 9. Second pull rod; 10. Swivel sleeve; 11. Anti-slip texture; 12. Adjusting bolt; 13. Capped slide rod; 14. Hook; 15. Limiting slide; 16. Locking hole; 17. Hook slot; 18. Hook; 19. Leather sleeve; 20. Limiting cap; 21. Raised strip; 22. Groove; 23. External thread; 24. Capped screw; 25. Connecting cap; 26. Adjusting sleeve; 27. Annular outer edge; 28. Second body mounting part; 29. ​​Threaded groove; 30. First body mounting part. Detailed Implementation

[0036] In the description of this invention, it should be noted that the terms "upper / lower," "front / rear," "inner / outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are only used to more clearly correspond to different connection positions in the description, and should not be construed as indicating or implying relative importance.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within the components of a compatible model. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, unless otherwise specified, all components used in this application are commercially available components, and the connection between different components can be achieved through conventional technical means.

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] An assembly structure that absorbs body tolerances is mainly installed between two anchor points on the body, such as... Figure 15 As shown, the device is installed between anchor points on the roof of the vehicle and used as a clothesline or hanging rod. It can automatically adjust to different vehicle models and angles to absorb tolerances and achieve a perfect fit. Figures 1-10 As shown, the assembly includes a mounting cylinder 1, a fixed seat 6, a guide block 5, a first tie rod 8, a second tie rod 9, and an axial adjustment assembly, a capped slide rod 13, and an adjusting bolt 12. The mounting cylinder 1 has an internal mounting cavity, with fixed seats 6 fixedly mounted at both ends. Two guide blocks 5 are slidably mounted inside the mounting cylinder 1, meaning the guide blocks 5 can only slide linearly along the axial direction of the mounting cylinder 1 under the limiting effect of the side wall of the mounting cylinder 1. One end of the first tie rod 8 passes through the end of the mounting cylinder 1 and the fixed seat 6 and is fixedly inserted inside the guide block 5; the other end is rotatably connected to the second tie rod 9. A tension spring 7 is sleeved on a section of the first tie rod 8 between the fixed seat 6 and the guide block 5, with both ends of the tension spring 7 fixed to the guide block 5 and the fixed seat 6, respectively. The end of the second tie rod 9 is provided with an axial adjustment assembly that can be extended and retracted along its axial direction. The axial adjustment assembly is used to adapt to the vehicle body connecting parts and absorb the axial assembly tolerance of the second tie rod 9.

[0041] Understandably, when the entire device is installed between two anchor points at different distances (different vehicle models have different body sizes, resulting in different anchor point distances), when the anchor point distance is large, the two first pull rods 8 will be pulled outwards, and the two guide blocks 5 will slide along the axial direction of the mounting sleeve 1 (sleeve 3) and move away from each other, at which time the tension spring 7 is compressed; when the anchor point distance is small, the two first pull rods 8 will be pushed inwards, and the two guide blocks 5 will slide along the axial direction of the mounting sleeve 1 (sleeve 3) and move closer to each other, at which time the tension spring 7 is stretched; through the cooperation of the first pull rods 8 and the guide blocks 5, the device can absorb the axial assembly tolerance of the mounting sleeve 1 (sleeve 3) and adapt to anchor points at different distances and different vehicle models.

[0042] It should be noted that, as Figure 2 As shown, the mounting cylinder 1 includes a sleeve 3, a long outer shell 2, and mounting bases 4. The two ends of the long outer shell 2 are fitted with opposing mounting bases 4, and the two ends of the sleeve 3 are fixedly connected to the edges of the two mounting bases 4.

[0043] like Figure 5 and Figure 8 As shown, the fixing seat 6 is fixedly installed on the inner side of the two mounting seats 4, that is, at both ends of the mounting cavity; and the bottom of the fixing seat 6 is provided with a hook 14, and the lower wall of the sleeve 3 is provided with a locking hole 16, and the hook 14 is hooked into the locking hole 16.

[0044] More preferably, the upper wall of the elongated outer casing 2 is provided with hook slots 17 at intervals, the hook slots 17 being used to limit the position of the hooks 18; such as Figure 9 As shown, the lower wall of the long outer shell 2 is provided with a protrusion 21 along its axial direction, and the upper wall of the sleeve 3 is provided with a groove 22 that matches the protrusion 21.

[0045] like Figure 3 As shown, the structure also includes a leather sleeve 19, which is fitted onto the side wall of the sleeve 3. The leather sleeve 19 can cover the holes on the surface of the sleeve 3 for dust prevention and aesthetic purposes.

[0046] In this embodiment, the axial adjustment assembly includes a capped slide rod 13 and an adjusting bolt 12, and the vehicle body connector is a first vehicle body mounting component 30; as Figure 4 , Figure 6 and Figure 7 As shown, a cavity is provided near the end of the second pull rod 9, and the end of the capped slide rod 13 is movably inserted into the cavity. A limiting cap 20 is provided at the head end of the capped slide rod 13 to restrict its position. Figure 10As shown, the limiting cap 20 and the first body mounting part 30 are detachably snapped together; the side wall of the second pull rod 9 is spirally provided with a limiting slide 15 that communicates with the cavity, the adjusting bolt 12 passes through the limiting slide 15 and is vertically threaded into the end of the capped slide rod 13, the adjusting bolt 12 can drive the capped slide rod 13 to rotate and move along the axis of the second pull rod 9 by spirally moving along the limiting slide 15.

[0047] like Figure 4 , Figure 6 and Figure 7 As shown, the second pull rod 9 is fitted with a swivel sleeve 10 on its side wall. The side wall of the swivel sleeve 10 has a through hole that matches the adjusting bolt 12. The end of the adjusting bolt 12 passes through the through hole and the limiting slide 15 and is threaded into the end of the capped slide rod 13. The nut at the beginning of the adjusting bolt 12 fits against the side wall of the swivel sleeve 10.

[0048] As a more preferred embodiment, the sidewall of the sleeve 10 is provided with anti-slip texture 11 along its axial direction.

[0049] By turning the sleeve 10, the adjusting bolt 12 is driven to move around the spiral limiting slide 15, thereby causing the capped slide rod 13 to move along its own axis, thus absorbing the axial tolerance of the capped slide rod 13. Moreover, the first pull rod 8 and the second pull rod 9 are rotatably connected by a pin. By rotating the second pull rod 9, the overall orientation of the capped slide rod 13 is adjusted, so that the second pull rod 9 can automatically adapt to different installation angles and adjust the axial tolerance of different angles.

[0050] Example 2

[0051] Unlike Example 1, in this example, as Figure 12-14 As shown, the axial adjustment assembly includes a capped screw 24 and an adjusting sleeve 26, and the vehicle body connector includes a second vehicle body mounting component 28; as Figure 11-15 As shown, the second tie rod 9 has a threaded groove 29 near its end, and the inner wall of the threaded groove 29 is threaded. The rod body of the capped screw 24 is threaded into the threaded groove 29. The first end of the capped screw 24 is provided with a connecting cap 25 for abutting against the inner wall of the second body mounting part 28. The outer periphery of a section of the second tie rod 9 is provided with an external thread 23. The adjusting sleeve 26 is threaded onto the outer periphery of the second tie rod 9. The end of the adjusting sleeve 26 near the connecting cap 25 is provided with an annular outer edge 27. The upper wall of the annular outer edge 27 abuts against the lower wall of the connecting cap 25, and the annular outer edge 27 is used to abut against the lower inner wall of the second body mounting part 28.

[0052] It is understood that the conditional contact refers to the continuous rotation of the adjusting sleeve 26, causing the outer edge of the annular ring 27 to continuously approach the connecting cap 25, until the two finally contact each other.

[0053] For different vehicle models, the distance between the upper and lower inner walls of the second body mounting part 28 is different. By rotating the adjusting sleeve 26, the adjusting sleeve 26 will move along the axial direction of the second tie rod 9, so that the distance between the annular outer edge 27 and the connecting cap 25 increases or decreases, thereby ensuring that it always matches the distance between the upper and lower inner walls of the second body mounting part 28, adapting to the assembly tolerance of different second body mounting parts 28.

[0054] Although embodiments of the present invention have been described in the specification, these embodiments are merely illustrative and should not be construed as limiting the scope of protection of the present invention. Various omissions, substitutions, and modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. An assembly structure that absorbs vehicle body tolerances, characterized in that, The device includes a mounting cylinder, a fixed seat, a guide block, a first tie rod, a second tie rod, and an axial adjustment assembly. The mounting cylinder has an internal mounting cavity, with fixed seats fixedly mounted at both ends. Two guide blocks are slidably mounted inside the mounting cylinder. One end of the first tie rod passes through the end of the mounting cylinder and the fixed seat, and is fixedly inserted inside the guide block; the other end is rotatably connected to the second tie rod. A tension spring is sleeved on a section of the first tie rod between the fixed seat and the guide block, with both ends of the tension spring fixed to the guide block and the fixed seat, respectively. The end of the second tie rod is provided with the axial adjustment assembly, which is adjustable along its axial direction. The axial adjustment assembly is used to adapt to the vehicle body connecting parts and absorb the axial assembly tolerance of the second tie rod.

2. The assembly structure for absorbing vehicle body tolerances as described in claim 1, characterized in that, The axial adjustment assembly includes a capped slide rod and an adjusting bolt. The vehicle body connector includes a first vehicle body mounting component. A cavity is provided near the end of the second tie rod. The body of the capped slide rod is movably inserted into the cavity. A limiting cap for limiting the position of the capped slide rod is provided at the first end of the capped slide rod. The limiting cap and the first vehicle body mounting component are detachably snapped together. A limiting slide channel communicating with the cavity is spirally opened on the side wall of the second tie rod. The adjusting bolt passes through the limiting slide channel and is vertically threaded into the end of the capped slide rod. The spiral movement of the adjusting bolt along the limiting slide channel can drive the capped slide rod to rotate and move axially along the second tie rod.

3. The assembly structure for absorbing vehicle body tolerances as described in claim 2, characterized in that, The second pull rod has a sleeve on its side wall. The sleeve has a through hole that matches the adjusting bolt. The end of the adjusting bolt passes through the through hole and the limiting slide and is threaded into the end of the capped slide rod. The nut at the beginning and the side wall of the sleeve fit together.

4. The assembly structure for absorbing vehicle body tolerances as described in claim 3, characterized in that, The sidewall of the sleeve is provided with anti-slip texture along its axial direction.

5. The assembly structure for absorbing vehicle body tolerances as described in claim 1, characterized in that, The axial adjustment assembly includes a capped screw and an adjusting sleeve. The body connector includes a second body mounting component. The second tie rod has a threaded groove at one end near its end, and the inner wall of the threaded groove is threaded. The shank of the capped screw is threaded into the threaded groove. The first end of the capped screw has a connecting cap for abutting against the inner wall of the second body mounting component. A section of the second tie rod has an external thread on its outer periphery. The adjusting sleeve is threaded onto the outer periphery of the second tie rod, and the adjusting sleeve has an annular outer edge at one end near the connecting cap. The upper wall of the annular outer edge and the lower wall of the connecting cap abut against each other, and the annular outer edge abuts against the lower inner wall of the second body mounting component.

6. The assembly structure for absorbing vehicle body tolerances as described in claim 1, characterized in that, The mounting sleeve includes a sleeve, a long outer shell, and mounting bases. The long outer shell has mounting bases facing each other at both ends. The two ends of the sleeve are fixedly connected to the edges of the two mounting bases. The mounting base is fixedly installed on the inner side of the two mounting bases and the bottom of the mounting base is provided with a hook. The lower wall of the sleeve is provided with a locking hole, and the hook is hooked into the locking hole.

7. The assembly structure for absorbing vehicle body tolerances as described in claim 6, characterized in that, The upper wall of the elongated outer shell is provided with hook slots at intervals, which are used to restrict the position of the hooks.

8. The assembly structure for absorbing vehicle body tolerances as described in claim 6, characterized in that, The lower wall of the elongated outer shell is provided with a protrusion along its axial direction, and the upper wall of the sleeve is provided with a groove that matches the protrusion.

9. The assembly structure for absorbing vehicle body tolerances as described in claim 6, characterized in that, It also includes a leather sleeve, which is fitted onto the side wall of the sleeve.

10. The assembly structure for absorbing vehicle body tolerances as described in claim 1, characterized in that, The first and second pull rods are rotatably connected by a pin.

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