Method for correcting assembly error of tubular beam

Abstract

The invention relates to the technical field of automobile assembly, and discloses a method for correcting an assembly error of a tubular beam, which is used for reducing a gap between an instrument panel and an automobile body, and comprises the following steps: S1, fixing correction pieces at two ends of the tubular beam, and pre-assembling the tubular beam; and S2, the instrument panel is installed, and the tubular beam is adjusted through the correction piece so that the instrument panel can be arranged in the middle. Compared with the prior art, when an existing tubular beam is assembled, due to the fact that tubular beam installation points fluctuate in the X direction, the Y direction and the Z direction, the tolerance of vehicle body holes is + / -2 mm and the directions are random, assembly interference or large gaps are caused, an instrument panel deviates to the first installation side, and the gaps are not consistent. According to the scheme, the correcting pieces are installed at the two ends of the tubular beam to adjust the tubular beam, the instrument board is centered, the gap is controlled within 1 mm, and the assembly precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile assembly, and in particular to a method for correcting assembly errors of a pipe beam. Background Art

[0002] In the modern automobile manufacturing process, the pipe beam is a key structural component, and its installation accuracy has an important impact on the safety, reliability and aesthetics of the vehicle. However, in the production and assembly process of many models, the installation points of the pipe beam often fluctuate in the three directions of X, Y, and Z, and the tolerance of the body hole is ±2mm. The direction of this fluctuation is random and inconsistent, which brings great challenges to the assembly work.

[0003] Specifically, when the tube beam is installed, interference problems may be encountered due to fluctuations in the position of the installation points. These interference problems prevent the parts from being accurately installed to the predetermined fitting surface position of the vehicle body, making it impossible to complete the assembly smoothly. Interference not only affects the positioning and fixation of the parts, but may also cause instability in the vehicle body structure, which in turn affects the safety and reliability of the entire vehicle. In addition, due to the randomness of the fluctuation direction, large pulling forces may be generated during assembly, especially during the installation of the dashboard. Depending on the installation order, the dashboard may be biased towards the side that was installed first, resulting in inconsistent gaps on the left and right sides. This situation not only affects the overall aesthetics of the vehicle interior, but may also affect the functionality of the dashboard and its attached components, such as the alignment and operation of buttons, display screens, etc. Summary of the invention

[0004] The present invention aims to provide a method for correcting assembly errors of a tubular beam, so as to reduce assembly gaps and interference problems, improve assembly accuracy and efficiency, reduce production costs, and enhance the safety, reliability and aesthetics of the vehicle.

[0005] To achieve the above object, the present invention adopts the following technical solution: A method for correcting the assembly error of a tube beam, used to reduce the gap between the instrument panel and the vehicle body, comprising the following steps:

[0006] S1: Fix the correction parts at both ends of the pipe beam and pre-assemble the pipe beam;

[0007] S2: Install the instrument panel and adjust the pipe beam through the correction parts so that the instrument panel is arranged in the center.

[0008] The beneficial effects of this solution are as follows: During the existing tube beam assembly process, due to the fluctuation of the tube beam installation point in the three directions of X, Y, and Z, and the tolerance of the body hole is ±2mm, and the fluctuation direction is random and inconsistent, interference and large assembly gaps will be encountered during the installation of the tube beam. A large assembly gap will form tension during assembly, and the dashboard will tend to the side installed first according to the installation sequence, resulting in inconsistent left and right gaps, which will result in the dashboard being unable to be centered relative to the interior of the car after subsequent installation. According to the results of the dimensional chain matching, the gaps at both ends of the dashboard are large, and the gaps on both sides are between 2-6mm. This solution installs correction parts at both ends of the tube beam, and adjusts the tube beam through the correction parts to center the dashboard, so that the gap between the dashboard and both ends of the body is within 1mm, thereby improving the assembly accuracy of the car.

[0009] Further, in S1, the correction part includes an adjustment unit, the adjustment unit includes an adjustment pin and an adjustment ring, the adjustment pin includes a clamping end and a connecting portion, the clamping end is abutted against the support surface, the connecting portion is threadedly connected to the adjustment ring, and the adjustment ring is rotatably set on the pipe beam and can drive the clamping end to move linearly by rotation.

[0010] Beneficial effects: Through the design of the adjustment ring and the adjustment pin, the position of the tube beam is infinitely adjusted, and the position of the tube beam can be adjusted very finely to meet the specific requirements of different models; the contact between the abutting end and the supporting surface provides a stable reaction force, ensuring that the tube beam can be accurately pushed toward the center of the vehicle, so that the dashboard can be arranged in the center, reducing the problem of inconsistent left and right gaps; this mechanical adjustment method reduces the reliance on manual experience and repeated experiments, improves assembly efficiency, and reduces production costs and time consumption; precise tube beam positioning not only improves the overall aesthetics of the vehicle, but also enhances the stability and safety of the body structure, and ensures the normal functioning of key components (such as the dashboard); due to the design of the adjustment ring and the adjustment pin, the method is suitable for a variety of models and different assembly environments, and has high versatility and flexibility; in addition, due to the synergistic effect of the adjustment pin and the adjustment ring, the rotational motion of the adjustment ring is converted into the linear motion of the adjustment pin, which reduces the damage to the assembly surface, so that the stability of the product after long-term use is also enhanced, and the performance fluctuations that may be caused by changes in the use environment are reduced.

[0011] Furthermore, the correction part also includes an installation unit, which includes a fixed plate and an outer shell. The fixed plate is fixedly arranged on the pipe beam, and the adjustment ring is rotatably arranged on the fixed plate. The outer shell is detachably fixed on the fixed plate and can limit the circumferential movement of the adjustment ring.

[0012] Furthermore, the fixing plate is provided with a fixing groove for fixing with the pipe beam. The design of the fixing groove takes into account the size and shape of different accessories and has high versatility. The fixing plate can be connected with the assembly by welding or high-strength bolts to ensure the firmness and reliability of the overall structure.

[0013] Furthermore, a fixing piece is provided in the fixing groove, and the fixing plate is fixedly connected to the pipe beam through the fixing piece. A avoidance groove is provided on the side of the adjusting ring close to the fixing plate, and the avoidance groove is annular and adapted to the fixing groove. This design not only ensures a stable connection between the components, but also allows the adjusting ring to move freely in the fixing groove, thereby realizing flexible adaptation to different installation requirements. In the actual assembly process, by rotating the adjusting ring, the position of the to-be-assembled part can be fine-tuned so that it is precisely aligned with the installation site, which not only improves the convenience and efficiency of assembly, but also enhances the stability and reliability of the entire structure. At the same time, the avoidance groove can be used to limit the installation position of the adjusting ring, thereby ensuring the angle between the adjusting pin and the mounting plate, thereby ensuring the correctness of the adjustment direction, and avoiding deviations in the adjustment process that affect the final adjustment result. For example, by ensuring that the axis of the adjusting pin is perpendicular to the plane where the mounting plate is located, the axis of the adjusting pin is kept perpendicular to the plane of the support surface, thereby causing the pipe beam to move in a direction perpendicular to the plane of the support surface, thereby ensuring the reliability of the adjustment result.

[0014] Furthermore, an opening is provided on the side of the shell away from the fixed disk, a second adjusting portion is fixed on the end of the adjusting ring away from the fixed disk, and a free end of the second adjusting portion is away from the opening and extends outside the opening.

[0015] Furthermore, a stopper is fixed on the opening, and the stopper is located on the path of the linear motion of the positioning pin and can limit the limit position of the linear motion of the adjusting pin. By setting the stopper, it is ensured that the adjusting pin will not exceed the preset range during the motion, thereby improving the stability and safety of the device.

[0016] Furthermore, in S2, the adjustment method is: by rotating the adjusting ring, the adjusting pin abutting end is driven away from the fixed disk, so that the fixed disk is away from the support surface, and the pipe beam is away from the support surface, so that the instrument panel is arranged in the center. The rotation of the adjusting ring converts the rotational motion into the linear motion of the adjusting pin, which reduces the friction and pressure directly acting on the support surface, thereby reducing the damage to the support surface; at the same time, since the damage to the support surface is reduced, the flatness and stability of the support surface are maintained, which further improves the accuracy and reliability in the subsequent assembly process; in addition, since the support surface is not easily damaged, the additional maintenance and repair work caused by damage to the support surface is reduced, thereby reducing the long-term maintenance cost.

[0017] Furthermore, it also includes a fastener, which is arranged between the vehicle body and the correction part and connects the correction part to the vehicle body with threads. Traditional fasteners can often only provide unidirectional tension, and it is difficult to evenly distribute stress in multiple directions. This is particularly obvious when used for a long time or encountering vibration. Fasteners are easy to loosen, resulting in gaps between assembly parts, thereby affecting the stability and safety of the overall structure. This solution applies tension to the assembly surface and assembly parts through fasteners (such as bolts and nuts) to ensure that they fit tightly. At the same time, the adjustment pin is used to contact the assembly surface through the abutment end, and the adjustment pin is driven to move linearly by rotating the adjustment ring to apply thrust to the assembly surface and the assembly part. The tension applied by the fastener and the thrust applied by the adjustment pin are combined to form a push-pull connection structure. This structure not only effectively prevents loosening between assembly parts, but also can evenly distribute stress in multiple directions, significantly improve the stability and vibration resistance of the overall structure, greatly reduce the shaking and gap after assembly, and ensure that the assembly parts maintain a good fit during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a flow chart of an embodiment of the present invention;

[0019] Figure 2 A three-dimensional diagram of the correction member and the pipe beam of the present invention;

[0020] Figure 3 An exploded view of the modified part of the present invention;

[0021] Figure 4 It is a schematic diagram of the correction member of the present invention in use. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] The reference numerals in the drawings of the specification include: pipe beam 11 , mounting plate 111 , support surface 12 , adjustment pin 21 , housing 22 , stopper 23 , fixing plate 24 , fixing groove 241 , adjustment ring 25 , avoidance groove 251 .

[0024] Example 1

[0025] Embodiment 1 is basically as attached Figure 1-4 As shown, Figure 1-4 A method for correcting pipe beam assembly errors is shown in FIG. Figure 1 As shown, the following steps are included:

[0026] S1: Figure 2 As shown, the correction parts are fixed at both ends of the pipe beam 11, and the pipe beam 11 is preassembled; wherein, as Figure 3As shown, the correction part includes a mounting unit and an adjustment unit. The mounting unit includes a fixing plate 24 and a housing 22. The fixing plate 24 is designed with a fixing groove 241. The two ends of the pipe beam 11 are respectively welded with mounting plates 111. The fixing plate 24 is welded and fixed to the mounting plate 111 through the fixing groove 241. Its side wall is provided with an external thread, so that the housing 22 can be threadedly connected with the side wall of the fixing plate 24 to form a structure that is easy to disassemble. The adjustment unit includes an adjustment pin 21 and an adjustment ring 25. The adjustment pin 21 includes a tight end, a connecting portion and a first adjustment portion. During the adjustment process, the tight end of the adjustment pin 21 is made to contact the vehicle body by rotating the first adjustment portion, and the inner wall of the vehicle body is used as the support surface 12. The tight end is in close contact with the support surface 12 to provide a stable support. The connecting portion is connected to the adjustment ring 25 by a thread, and the adjustment ring 25 can rotate freely in the housing. At the same time, the circumferential movement of the adjustment ring 25 is constrained by the inner wall of the housing 22 to prevent the adjustment ring 25 from sliding in the housing 22 and affecting the accuracy of the correction part. The housing 22 is provided with an opening on the side away from the fixing plate 24 , and a stopper 23 is welded on the opening side to ensure that the adjusting pin 21 will not accidentally fall off from the opening side.

[0027] S2: Install the instrument panel and adjust the pipe beam 11 through the correction parts so that the instrument panel is arranged in the center. The adjustment method is: by rotating the adjustment ring 25, the adjusting pin 21 is driven to move the tight end away from the fixed plate 24, so that the fixed plate 24 is away from the supporting surface 12, and the pipe beam 11 is away from the supporting surface 12, so that the instrument panel is arranged in the center.

[0028] Example 2

[0029] Example 2 is substantially the same as Example 1, except that Figure 4 As shown, an avoidance groove 251 is provided at the bottom of the adjustment ring. The avoidance groove 251 is annular and is adapted to the fixing groove 241, so that the avoidance groove 251 is used to avoid the fixing parts between the fixing plate 24 and the mounting plate 111, thereby reducing the accuracy requirements of the fixing parts, ensuring that the adjustment ring can rotate between the fixing plate 24 and the outer shell 22, and then using the adjusting pin 21 to adjust the relative position of the pipe beam 11 and the supporting surface 12.

[0030] In addition, when installing the adjustment unit, the position of the adjustment ring 25 can be limited by the fixings in the avoidance groove 251 and the fixing groove 241, so that a fixed angle is maintained between the adjustment pin 21 and the mounting plate 111, thereby ensuring the direction of adjustment. For example, by ensuring that the axis of the adjustment pin 21 is perpendicular to the plane of the mounting plate 111, the axis of the adjustment pin 212 is perpendicular to the plane of the support surface 12, thereby causing the pipe beam 11 to move in a direction perpendicular to the plane of the support surface 12.

[0031] Example 3

[0032] Embodiment 3 is basically the same as Embodiment 1, except that it further includes fasteners, which are arranged between the mounting plate 111 and the support surface 12, and the mounting plate 111 and the support surface 12 are threadedly connected by the fasteners, so that a push-pull connection structure is formed between the mounting plate 111 and the vehicle body, and fasteners (such as bolts and nuts) are used to apply tension to the support surface 12 and the mounting plate 111 to ensure that they fit tightly, and at the same time, the adjustment pin 21 is used to contact the support surface 12 through the tightening end, and the adjustment pin 21 is driven to perform linear movement by rotating the adjustment ring 25, so as to apply thrust to the support surface 12 and the mounting plate 111, thereby effectively preventing the mounting plates 111 from loosening, and can also evenly distribute stress in multiple directions, significantly improve the stability and vibration resistance of the overall structure, greatly reduce the shaking and gap after assembly, and ensure that a good fit is maintained during long-term use.

[0033] The above is only an embodiment of the present invention, and common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that the technical means for solving the problems in the above-mentioned embodiments of the present invention can be used in combination to solve multiple technical problems at the same time. For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A method for correcting pipe beam assembly errors, used to reduce the gap between the instrument panel and the vehicle body, characterized in that: The steps include: S1: Fix the correction parts at both ends of the pipe beam and pre-assemble the pipe beam; S2: Install the instrument panel and adjust the pipe beam through the correction parts so that the instrument panel is arranged in the center.

2. The method for correcting pipe beam assembly errors according to claim 1, characterized in that: In S1, the correction part includes an adjustment unit, the adjustment unit includes an adjustment pin and an adjustment ring, the adjustment pin includes a clamping end and a connecting portion, the clamping end is abutted against the supporting surface, the connecting portion is threadedly connected to the adjustment ring, and the adjustment ring is rotatably set on the pipe beam and can drive the clamping end to move linearly by rotation.

3. The method for correcting pipe beam assembly errors according to claim 2, characterized in that: In S2, the adjustment method is: by rotating the adjusting ring, the adjusting pin abutting end is driven away from the fixing plate, so that the fixing plate is away from the supporting surface, and the pipe beam is away from the supporting surface, so that the instrument panel is arranged in the center.

4. The method for correcting pipe beam assembly errors according to claim 3, characterized in that: The correction part also includes an installation unit, which includes a fixed plate and an outer shell. The fixed plate is fixed on the pipe beam, and the adjustment ring is rotatably arranged on the fixed plate. The outer shell is detachably fixed on the fixed plate and can limit the circumferential movement of the adjustment ring.

5. The method for correcting pipe beam assembly errors according to claim 4, characterized in that: The fixing plate is provided with a fixing groove for fixing connection with the pipe beam.

6. The method for correcting pipe beam assembly errors according to claim 5, characterized in that: A fixing piece is arranged in the fixing groove, and the fixing plate is fixedly connected to the pipe beam through the fixing piece. An avoidance groove is arranged on the side of the adjusting ring close to the fixing plate, and the avoidance groove is annular and matched with the fixing groove.

7. The method for correcting pipe beam assembly errors according to claim 6, characterized in that: The shell is provided with an opening on the side away from the fixed disk, a second adjusting portion is fixed on the end of the adjusting ring away from the fixed disk, and a free end of the second adjusting portion is away from the opening and extends outside the opening.

8. The method for correcting pipe beam assembly errors according to claim 7, characterized in that: A stopper is fixed on the opening, and the stopper is located on the path of the linear movement of the positioning pin and can limit the extreme position of the linear movement of the adjusting pin.

9. A method for correcting pipe beam assembly errors according to any one of claims 1 to 8, characterized in that: The invention also comprises a fastener, which is arranged between the vehicle body and the tube beam and threadedly connects the correction piece with the vehicle body.

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