Tubular beam with assembly precision compensation structure

Abstract

The utility model relates to the technical field of automobile assembly, and discloses a tubular beam with an assembly precision compensation structure, which comprises a tubular beam body and adjusting components at two ends. The adjusting assembly comprises an adjusting ring and an adjusting pin, the adjusting ring is rotatably arranged on the tubular beam body, and the adjusting pin abuts against the vehicle body and is connected to the adjusting ring through threads. By rotating the adjusting ring, the pipe beam body can be far away from the vehicle body to ensure that the instrument panel is centered. And through the stepless adjustment design of the adjusting ring and the adjusting pin, the assembly efficiency is improved, and the production cost and the time dependence are reduced. The vehicle attractiveness and the vehicle body structural stability are improved through accurate tubular beam positioning, normal functions of key components are guaranteed, high universality and flexibility are achieved, rotary motion of the adjusting ring is converted into linear motion of the adjusting pin, damage to a supporting face can be reduced, product stability is enhanced, and performance fluctuation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive assembly technology, specifically to a tube beam with an assembly precision compensation structure. Background Technology

[0002] With the rapid development of the automotive industry, the assembly precision and stability of automotive interior components have become increasingly important to the overall vehicle quality. As a crucial support structure for the automotive dashboard, the installation precision of the tubular beam directly affects the dashboard's appearance and functional performance. Currently, the installation structure of automotive tubular beams mainly includes the tubular beam body and mounting structures at both ends of the beam, used to fix the beam to the side panels of the vehicle body.

[0003] In the prior art, various tube beam mounting structures have been developed to solve the installation accuracy problem. For example, Chinese Patent No. CN202641869U discloses a tube beam mounting structure, which includes mounting boxes respectively disposed at both ends of the tube beam, and an adjusting bracket disposed between the mounting boxes and the vehicle side panel. The adjusting bracket and the vehicle side panel are connected by adjusting bolts. The vehicle side panel has a first through hole that allows the adjusting bracket to move in the front-rear direction of the vehicle body. The adjusting bracket is provided with a first eccentric shaft and a second eccentric shaft that can rotate relative to the adjusting bracket. The mounting box has a second through hole and a third through hole. This structure can realize position adjustment in three directions.

[0004] However, existing tubular beam mounting structures still have some shortcomings. First, the mounting points of the tubular beams in many vehicle models fluctuate in the X, Y, and Z directions, with the body hole tolerance being ±2mm. The direction of this fluctuation is random and inconsistent, leading to interference and large assembly gaps during installation. Second, when interference occurs, parts cannot be installed onto the body's mating surface; and when the assembly gap is too large, tension is generated during assembly, causing the instrument panel to shift towards the side installed first, resulting in inconsistent left and right gaps. Furthermore, existing adjustment mechanisms are mostly complex in structure, inconvenient to operate, and difficult to perform quick and efficient precise adjustments in actual production, while also increasing production costs. Finally, existing tubular beam mounting structures often require multiple people to work together during adjustment, resulting in cumbersome operation, low efficiency, and insufficient stability after adjustment. They are prone to positional shifts due to vibration and other factors, affecting the overall appearance quality and performance of the vehicle. Utility Model Content

[0005] This utility model aims to provide a tube beam with an assembly precision compensation structure to address the issue that the installation points of tube beams in various vehicle models in the prior art fluctuate in the X, Y, and Z directions, with the body hole tolerance being ±2mm and the fluctuation direction being random and inconsistent. This results in interference and large assembly gaps during tube beam installation. The invention improves the assembly precision of the tube beam, thereby enhancing the overall appearance quality and performance of the vehicle.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tube beam with an assembly precision compensation structure, comprising a tube beam body, wherein at least one end of the tube beam body is fixed with an assembly precision compensation structure, the assembly precision compensation structure comprising an adjustment component, the adjustment component comprising an adjustment ring and an adjustment pin, the adjustment ring being rotatably mounted on the tube beam body, one end of the adjustment pin abutting against the vehicle body, and the other end being threadedly connected to the adjustment ring and capable of driving the tube beam body to move away from the vehicle body by rotating the adjustment ring.

[0007] The beneficial effects of this solution are as follows: In the existing tubular beam assembly process, the installation points of the tubular beam fluctuate in the X, Y, and Z directions. Simultaneously, the tolerance of the body hole is ±2mm, and the fluctuating direction is random and inconsistent. This leads to interference and large assembly gaps during tubular beam installation. Large assembly gaps create tension during assembly, causing the instrument panel to shift towards the side installed first, resulting in inconsistent left and right gaps. Consequently, the instrument panel cannot be centered relative to the vehicle interior after subsequent installation. Based on the dimensional chain fit, the gaps at both ends of the instrument panel are relatively large, with the gaps on both sides ranging from 2-6mm. This solution incorporates assembly precision compensation structures at both ends of the tubular beam. These structures adjust the relative position of the tubular beam and the supporting surface, ensuring the instrument panel is centered and the gap between the instrument panel and both ends of the body is within 1mm, thus improving the vehicle's assembly precision. Furthermore, the design of the adjusting ring and adjusting pin enables stepless adjustment of the tubular beam position, allowing for very precise adjustments. The position of the adjusting pin is adjusted to meet the specific requirements of different vehicle models. The contact between the adjusting pin and the support surface provides a stable reaction force, ensuring that the tube beam can be accurately pushed towards the center of the vehicle, thereby enabling the dashboard to be centered and reducing the problem of inconsistent left and right clearances. This mechanical adjustment method reduces reliance on manual experience and repeated trials, improves assembly efficiency, and reduces production costs and time consumption. In addition, precise tube beam positioning not only enhances the overall aesthetics of the vehicle but also strengthens the stability and safety of the body structure, ensuring the normal operation of key components (such as the dashboard). Due to the design of the adjusting ring and adjusting pin, this method is applicable to various vehicle models and different assembly environments, exhibiting high versatility and flexibility. Furthermore, due to the synergistic effect of the adjusting pin and adjusting ring, the rotational motion of the adjusting ring is converted into the linear motion of the adjusting pin, reducing damage to the support surface and enhancing the stability of the product after long-term use, thus reducing performance fluctuations that may occur due to changes in the usage environment.

[0008] Furthermore, the assembly accuracy compensation structure also includes an installation component, which includes a fixed plate and a housing. The fixed plate is fixedly mounted on the tube beam body, and the housing is detachably mounted on the fixed plate to form a rotating cavity. The adjusting ring is rotatably mounted inside the rotating cavity.

[0009] Furthermore, the outer casing has an opening on the side away from the fixed plate, and a first adjustment part is fixedly provided on the free end of the adjustment ring, the first adjustment part being away from and extending outside the opening.

[0010] Furthermore, a stop is provided on the opening, which is located in the radial direction of the movement of the limiting pin and can limit the extreme position of the movement of the adjusting pin.

[0011] Furthermore, the mounting assembly also includes a mounting plate, which is fixed to one end of the tube beam body, and a fixing plate is fixedly mounted on the mounting plate.

[0012] Furthermore, the mounting components also include fasteners, which are positioned between the mounting plate and the vehicle body and bolt the mounting plate to the vehicle body.

[0013] Furthermore, the mounting plate is provided with a mounting groove for fixing to the mounting plate.

[0014] Furthermore, the mounting assembly also includes fasteners. The mounting plate is fixedly connected to the mounting plate via fasteners, and the bottom of the adjusting ring has a relief groove that is annular and fits the fixing groove. Traditional fasteners often only provide unidirectional tensile force, making it difficult to distribute stress evenly in multiple directions. This is particularly evident during long-term use or when subjected to vibration, as fasteners are prone to loosening, causing gaps between mounting plates and affecting the stability and safety of the overall structure. This solution applies tensile force to the support surface and mounting plate using fasteners (such as bolts and nuts) to ensure a tight fit. Simultaneously, an adjusting pin contacts the support surface, and rotating the adjusting ring drives the adjusting pin to move linearly, applying a pushing force to the support surface and mounting plate. The combination of the tensile force applied by the fasteners and the pushing force applied by the adjusting pin forms a push-pull connection structure. This structure not only effectively prevents loosening between mounting plates but also evenly distributes stress in multiple directions, significantly improving the stability and vibration resistance of the overall structure, greatly reducing shaking and gaps after assembly, and ensuring that the mounting plates maintain a good fit during long-term use.

[0015] Furthermore, a second adjustment part is fixed to the end of the adjustment pin away from the vehicle body. The second adjustment part extends out of the opening and is located between the stop block and the housing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 A three-dimensional diagram of the accuracy compensation structure of this utility model embodiment.

[0018] Figure 3 This is a three-dimensional view of the embodiment of the present invention after the precision compensation structure has been removed;

[0019] Figure 4 This is a schematic diagram of the adjustment unit of this utility model. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method:

[0021] The reference numerals in the accompanying drawings include: tube beam body 11, support surface 12, mounting plate 21, mounting hole 211, fixing plate 212, fixing groove 213, housing 221, stop block 222, and adjusting pin 223.

[0022] Example 1

[0023] Example 1 is basically as shown in the appendix. Figure 1-3 As shown, Figure 1-3 The illustrated tubular beam with an assembly precision compensation structure includes a tubular beam body 11, which is a tubular body traversing the vehicle's driver's compartment. The tubular beam body 11 is made of metal and possesses sufficient strength and rigidity to withstand the weight of the dashboard and vibrations during vehicle operation. The cross-section of the tubular beam body 11 can be circular, square, or other shapes to meet the installation requirements of different vehicle models, supporting the dashboard within the compartment. At least one end of the tubular beam body 11 is fixed with an assembly precision compensation structure. In this embodiment, the assembly precision compensation structure is located at both ends of the tubular beam body 11 to adjust the relative position between the tubular beam body 11 and the vehicle body, compensating for errors generated during assembly.

[0024] The assembly accuracy compensation structure includes mounting components and adjustment components, such as... Figure 2 As shown, the mounting assembly includes a mounting plate 21, a fixing plate 212, and a housing 221. The mounting plate 21 is welded to the pipe beam body 11. The outer diameter of the fixing plate 212 can be designed to different sizes according to actual application requirements, typically between 30mm and 100mm. The thickness of the fixing plate 212 is generally 5mm to 15mm to ensure sufficient rigidity and strength. Figure 3 As shown, the fixing plate 212 is designed with multiple fixing grooves 213 for fixing the fixing plate 212 to the mounting plate 21. The number and position of the fixing grooves 213 are determined according to actual needs, usually two to six, evenly distributed around the perimeter of the fixing plate 212. In this embodiment, there are two fixing grooves 213. The width of the fixing grooves 213 is determined according to the specifications of the connecting bolts, commonly M4, M5, M6, etc. The fixing plate 212 has external threads on its side, such as... Figure 2 As shown, the lower end of the housing 22122 is threadedly connected to the side of the fixed disk 21221.

[0025] The adjusting assembly includes an adjusting ring and an adjusting pin 223, such as Figure 4As shown, the adjusting pin 223 includes an integrally formed first adjusting part, a connecting part, and an abutting part. The first adjusting part is located at the right end of the connecting part and is used to control the rotation of the connecting part so that the abutting part abuts against the support surface. The side of the connecting part is provided with an external thread for threaded connection with the adjusting ring. In this embodiment, the external thread adopts a standard metric thread with a pitch of 1.5mm. This design ensures that the adjusting pin 223 displaces 1.5mm in the axial direction with each rotation of the adjusting ring, facilitating precise control of the adjustment amount. The free end of the abutting part has a planar structure for abutting against the support surface 12.

[0026] The adjusting ring includes an integrally formed rotating part and a second adjusting part. The inner wall of the rotating part is designed with an internal thread that matches the external thread of the adjusting pin 223, so that the adjusting pin 223 is located inside the adjusting ring and is threadedly connected to the adjusting ring through a connecting part. This ensures that the two can be tightly joined and achieve precise adjustment. In this embodiment, the adjusting ring is carefully made of copper alloy, which not only has excellent self-lubricating properties but also excellent wear resistance. The outer wall of the rotating part is cylindrical and, through its cooperation with the housing 221, allows the adjusting ring to be rotatably mounted on the mounting plate. By rotating the adjusting ring, the adjusting pin 223 is moved flexibly in the radial direction, thereby precisely adjusting the gap between the support surface and the mounting plate.

[0027] In use, the rotation of the first or second adjusting part causes the adjusting pin 223 to rotate relative to the adjusting ring, thereby realizing the telescopic movement of the adjusting pin 223 within the adjusting ring. This design is not only compact in structure but also convenient to adjust, meeting the needs of various precision adjustments.

[0028] When it is necessary to adjust the relative position between the tube beam body 11 and the vehicle body, the operator can rotate the adjusting ring. Since the adjusting pin 223 is threadedly connected to the adjusting ring, the rotation of the adjusting ring will cause the adjusting pin 223 to move along its axial direction. After the adjusting pin 223 moves towards the vehicle body and contacts the vehicle body, the operator can continue to rotate the adjusting ring. Since the adjusting pin 223 is blocked by the vehicle body and cannot move further towards the vehicle body, the rotation of the adjusting ring will cause the tube beam body 11 to move away from the vehicle body, thereby achieving the adjustment of the relative position between the tube beam body 11 and the vehicle body.

[0029] By adjusting the component settings, the relative position between the tube beam body 11 and the vehicle body can be easily adjusted, compensating for errors generated during assembly, improving the assembly accuracy of the tube beam, ensuring the accurate installation position of the dashboard, and enhancing the overall quality of the vehicle interior.

[0030] Example 2

[0031] Based on Embodiment 1, a stop 222 is provided on the opening. The stop 222 is located in the radial direction of the movement of the limiting pin and can limit the extreme position of the movement of the adjusting pin 223.

[0032] Specifically, a stop 222 is provided on the opening, and the stop 222 is located in the radial direction of the movement of the adjusting pin 223. The stop 222 can be a raised structure or a separately installed component. The position and size of the stop 222 are precisely designed to limit the extreme position of the movement of the adjusting pin 223, preventing the adjusting pin 223 from overextending or retracting, which would cause the position of the tube beam body 11 to exceed the design range.

[0033] The stop block 222 can be made of metal or high-strength engineering plastic, possessing sufficient strength and rigidity to withstand the force generated by the adjusting pin 223 in its extreme position. The stop block 222 can be connected to the opening by welding, bolting, or other fixing methods.

[0034] By setting a stop 222 on the opening, the extreme position of the adjusting pin 223 can be limited, preventing the adjusting pin 223 from extending or retracting excessively, protecting the adjusting pin 223 and the adjusting ring from damage, and ensuring that the position of the tube beam body 11 is within the design range, thereby improving the safety and reliability of the assembly accuracy compensation structure.

[0035] Example 3

[0036] Based on Embodiment 2, the mounting assembly also includes fasteners, which are disposed between the mounting plate 21 and the vehicle body and bolt the mounting plate 21 to the vehicle body.

[0037] Specifically, fasteners are installed between the mounting plate 21 and the vehicle body to securely connect the mounting plate 21 to the vehicle body. The fasteners can be combinations of standard parts such as bolts, nuts, and washers, or they can be dedicated connectors. The number and placement of the fasteners are precisely designed to ensure that the mounting plate 21 is firmly connected to the vehicle body, bearing the weight of the tubular beam body 11 and the dashboard, as well as vibrations during vehicle operation.

[0038] Mounting plate 21 has mounting holes 211 that match fasteners. The position and size of the mounting holes 211 correspond to the connection points on the vehicle body. The mounting holes 211 can be circular, oblong, or other shapes to accommodate different installation needs and adjustment requirements.

[0039] Fasteners can be made of high-strength metal materials, possessing sufficient strength and corrosion resistance. The specifications and models of the fasteners can be selected according to specific installation requirements and load conditions to ensure the reliability and safety of the connection.

[0040] By bolting the mounting plate 21 to the vehicle body with fasteners, a reliable connection between the tubular beam body 11 and the vehicle body can be achieved, ensuring the stability and safety of the tubular beam body 11 during vehicle operation. At the same time, the bolted connection facilitates installation and disassembly, making it convenient to maintain and replace the tubular beam body 11.

[0041] Example 4

[0042] Based on Embodiment 3, an avoidance groove is provided at the bottom of the adjusting ring. The avoidance groove is annular and fits into the fixing groove 213. The shape and size of the avoidance groove match the fixing groove 213, so that the adjusting ring can avoid the fixing groove 213 and the fixing parts set in the fixing groove 213 when rotating, preventing the adjusting ring from interfering with the fixing parts, affecting the normal rotation of the adjusting ring, reducing the fixing accuracy of the fixing plate 212 and the mounting plate 21, thereby improving assembly efficiency.

[0043] The depth and width of the clearance groove are precisely designed to completely avoid the fixing components without unduly weakening the strength and rigidity of the adjusting ring. The edges of the clearance groove may be chamfered or rounded to reduce stress concentration and improve the durability of the adjusting ring.

[0044] By fixing the fixed plate 212 to the mounting plate 21 with fasteners, and by setting an avoidance groove at the bottom of the adjusting ring that matches the fixing groove 213, a firm connection between the fixed plate 212 and the mounting plate 21 can be achieved. At the same time, it ensures that the adjusting ring can rotate freely in the rotating cavity without being disturbed by the fasteners, thereby improving the stability, reliability and service life of the assembly accuracy compensation structure.

[0045] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that the technical means used to solve problems in the above embodiments of this utility model can be combined to solve multiple technical problems simultaneously. For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A tube beam with an assembly accuracy compensation structure, characterized in that: The device includes a tube beam body, at least one end of which is fixed with an assembly precision compensation structure. The assembly precision compensation structure includes an adjustment component, which includes an adjustment ring and an adjustment pin. The adjustment ring is rotatably mounted on the tube beam body. One end of the adjustment pin abuts against the vehicle body, and the other end is threadedly connected to the adjustment ring and can drive the tube beam body to move away from the vehicle body through the rotation of the adjustment ring.

2. A tube beam with an assembly accuracy compensation structure according to claim 1, characterized in that: The assembly accuracy compensation structure also includes an installation component, which includes a fixed plate and a housing. The fixed plate is fixedly mounted on the tube beam body, and the housing is detachably mounted on the fixed plate to form a rotating cavity. The adjusting ring is rotatably mounted inside the rotating cavity.

3. A tube beam with an assembly accuracy compensation structure according to claim 2, characterized in that: An opening is provided on the side of the outer casing away from the fixed plate, and a first adjustment part is fixedly provided on the free end of the adjustment ring. The first adjustment part is away from and extends out of the opening.

4. A tube beam with an assembly accuracy compensation structure according to claim 3, characterized in that: A stop is provided on the opening. The stop is located in the radial direction of the movement of the limiting pin and can limit the extreme position of the movement of the adjusting pin.

5. A tube beam with an assembly accuracy compensation structure according to claim 4, characterized in that: The mounting assembly also includes a mounting plate, which is fixed to one end of the tube beam body, and a fixing plate is fixedly mounted on the mounting plate.

6. A tube beam with an assembly accuracy compensation structure according to claim 5, characterized in that: The mounting components also include fasteners that are positioned between the mounting plate and the vehicle body and bolt the mounting plate to the vehicle body.

7. A tube beam with an assembly accuracy compensation structure according to claim 6, characterized in that: The mounting plate has a mounting groove for fixing it to the mounting plate.

8. A tube beam with an assembly accuracy compensation structure according to claim 7, characterized in that: The mounting components also include fasteners, and the mounting plate is fixedly connected to the mounting plate by the fasteners. The bottom of the adjusting ring is provided with a clearance groove, which is annular and fits the fixing groove.

9. A tube beam with an assembly accuracy compensation structure according to claim 8, characterized in that: A second adjustment part is fixed to the end of the adjustment pin away from the vehicle body. The second adjustment part extends out of the opening and is located between the stop block and the housing.

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