Body longitudinal beam block support and skid
By setting a longitudinal beam support block bracket on the skid and connecting the longitudinal beams with stud holes, the problem of reduced longitudinal beam strength in the co-production of multiple models is solved, achieving cost savings and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHERY AUTOMOBILE CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-06-02
AI Technical Summary
In automobile manufacturing, when multiple models are produced on the same production line, existing technology requires large-sized support holes to be made in the longitudinal beams of the vehicle body to accommodate skids, which leads to a reduction in the strength of the longitudinal beams.
The vehicle body longitudinal beam support bracket is adopted. The support block body and the fixing component are set on the skid, and the connection is made by using stud holes instead of fulcrum holes, thus avoiding the need to open large-sized fulcrum holes.
The increased strength of the vehicle's longitudinal beams reduced production costs and ensured the stability and reliability of the vehicle structure, thereby reducing manufacturing costs and maintenance expenses.
Smart Images
Figure CN224308695U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle painting technology, and in particular to a vehicle body longitudinal beam support block bracket and skid. Background Technology
[0002] In the automotive manufacturing industry, painting is a crucial production process. During the painting process, skids are used to transport vehicles along the painting production line.
[0003] In related technologies, when multiple vehicle models are produced on a single painting production line, fulcrum holes are typically drilled at corresponding positions on the longitudinal beams of the vehicle body to ensure that different models can be fitted with the same skid. However, because the fulcrum holes are relatively large, drilling them can affect the strength of the longitudinal beams. Utility Model Content
[0004] This utility model provides a vehicle body longitudinal beam support block bracket and a skid. By setting the vehicle body longitudinal beam support block bracket on the skid, the vehicle body longitudinal beam does not need to have large-sized fulcrum holes, thus improving the strength of the vehicle body longitudinal beam. Specifically, the technical solution is as follows.
[0005] On the one hand, this utility model embodiment provides a vehicle body longitudinal beam support bracket, including: a support block body and multiple fixing components;
[0006] The support block body includes a bottom wall and a plurality of side walls arranged around the bottom wall. The bottom wall has a fulcrum hole, and the plurality of side walls correspond one-to-one with the plurality of fasteners.
[0007] Each of the sidewalls has an extension on the side away from the bottom wall that extends radially along the fulcrum hole, the extension having a stud hole through which the fastener can pass.
[0008] In one possible implementation, both the fulcrum hole and the stud hole are oval-shaped curves, and the size of the fulcrum hole is much larger than the size of the stud hole.
[0009] In one possible implementation, the fulcrum hole is a circular through hole, and the center of the fulcrum hole does not coincide with the center of the bottom wall.
[0010] In one possible implementation, the plurality of sidewalls includes a first sidewall, a second sidewall, and a third sidewall arranged sequentially, with the first sidewall opposite to the third sidewall.
[0011] In one possible implementation, the length of the second sidewall is greater than the length of the first sidewall, and the length of the second sidewall is greater than the length of the third sidewall.
[0012] In one possible implementation, the first sidewall and the second sidewall are smoothly connected, and the second sidewall and the third sidewall are smoothly connected.
[0013] In one possible implementation, the bottom wall has an annular protrusion disposed around the circumference of the fulcrum hole and located on the side of the bottom wall facing the side wall.
[0014] In one possible implementation, the thickness of the support block body is greater than the thickness of the vehicle body longitudinal beam.
[0015] In one possible implementation, the fastener is a bolt.
[0016] On the other hand, this utility model embodiment also provides a skid, the skid including a skid body and a vehicle body longitudinal beam support block bracket as described in one aspect above;
[0017] The vehicle body longitudinal beam support block bracket is fixed to the skid body.
[0018] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:
[0019] The vehicle body longitudinal beam support bracket provided in this embodiment allows for the adaptation of different vehicle models to the same skid when multiple vehicle models are produced on the same painting production line. Only stud holes are made at corresponding positions on the vehicle body longitudinal beam, and multiple fasteners are used to connect the support block body to the longitudinal beam. Since the size of the stud holes is much smaller than the size of the fulcrum holes, by setting the vehicle body longitudinal beam support bracket provided in this embodiment on the skid, the vehicle body longitudinal beam does not need to have large fulcrum holes, thus improving the strength of the vehicle body longitudinal beam.
[0020] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present invention. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 A three-dimensional structural schematic diagram of a vehicle body longitudinal beam support block bracket provided for an embodiment of this utility model;
[0023] Figure 2 A front view of the support block body of a vehicle body longitudinal beam support block bracket provided for an embodiment of this utility model;
[0024] Figure 3 A top view of the support block body of a vehicle body longitudinal beam support block bracket provided in an embodiment of this utility model;
[0025] Figure 4 This is a schematic diagram of the structure of a skid provided in an embodiment of the present utility model;
[0026] Figure 5 This is an application scenario diagram of a vehicle body longitudinal beam support block bracket provided for an embodiment of this utility model.
[0027] The reference numerals in the figure indicate:
[0028] 1. Vehicle body longitudinal beam support block bracket; 11. Support block body; 111. Bottom wall; 112. Side wall; 1121. First side wall; 1122. Second side wall; 1123. Third side wall; 113. Pivot hole; 114. Extension; 115. Stud hole; 116. Annular protrusion; 12. Fixing component;
[0029] 2. Sled body; 21. Fulcrum;
[0030] 3. Vehicle body longitudinal beams.
[0031] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0033] It should be noted that, unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by a person of ordinary skill in the art to which this disclosure pertains.
[0034] In the description of this utility model, some directional terms are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the embodiments of this utility model, terms such as "upper," "lower," and "side" are generally used to indicate orientation. Figure 1The relative positions shown are based on the given information, and these directional terms are used only to more clearly describe the relationships between structures, not to describe absolute positions. Positions may change when the product is placed in different orientations; for example, "up" and "down" may be interchanged.
[0035] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0036] In related technologies, to save on production costs, vehicle manufacturers often want to use a single skid to produce multiple vehicle models on a single painting line. To ensure that different models can be fitted with the same skid, support holes are typically drilled at corresponding positions on the vehicle's longitudinal beams. Understandably, the locations of these support holes can differ for different vehicle models. However, because the support holes support and fix the longitudinal beams, their size is often relatively large, which can negatively impact the strength of the longitudinal beams.
[0037] In order to solve the technical problems existing in the related technologies, the applicant proposed a body longitudinal beam support bracket from the perspective of how to fix the body longitudinal beams of different models. By setting the body longitudinal beam support bracket on the skid, the body longitudinal beam does not need to be drilled with large-sized support holes, thus improving the strength of the body longitudinal beam.
[0038] Figure 1 A three-dimensional structural diagram of a vehicle body longitudinal beam support block bracket provided for an embodiment of this utility model. See also... Figure 1 This utility model embodiment provides a vehicle body longitudinal beam support block bracket. The vehicle body longitudinal beam support block bracket includes: a support block body 11 and a plurality of fixing members 12.
[0039] Figure 2 A front view of the support block body of a vehicle body longitudinal beam support block bracket provided for an embodiment of this utility model; Figure 3 A top view of the support block body of a vehicle body longitudinal beam support block bracket provided in an embodiment of this utility model is shown in the figure. Figure 2 and Figure 3 The support block body 11 includes a bottom wall 111 and a plurality of side walls 112 arranged around the bottom wall 111. The bottom wall 111 has a fulcrum hole 113.
[0040] See Figure 1 Multiple sidewalls 112 correspond one-to-one with multiple fasteners 12. Each sidewall 112 has an extension 114 extending radially along the fulcrum hole 113 on the side away from the bottom wall 111. The extension 114 has a stud hole 115 through which the fastener 12 can pass.
[0041] When multiple vehicle models are produced on the same painting production line, in order to make different models compatible with the same skid, stud holes can be made only at the corresponding positions of the longitudinal beams of the vehicle body. Multiple fasteners 12 are used to connect the support block body 1 to the longitudinal beams of the vehicle body. Since the size of the stud hole 115 is much smaller than the size of the fulcrum hole 113, by setting the longitudinal beam support block bracket on the skid, the longitudinal beams of the vehicle body do not need to be made with large-sized fulcrum holes, thus improving the strength of the longitudinal beams of the vehicle body.
[0042] It should be noted that the stud holes on the vehicle's longitudinal beams were determined by the applicant after analyzing the vehicle's floor structure. During the research process, the applicant discovered that the strength of the side skirts and the positions of the support holes were inconsistent, making it impossible to install the longitudinal beam support bracket. Therefore, the applicant compared the support hole positions with the longitudinal beam data and reserved stud holes at the corresponding locations.
[0043] In some embodiments, see Figure 1 or Figure 3 The number of stud holes 115 can be three. The three stud holes 115 can be regarded as the three vertices of a triangle. The three stud holes 115 can be used to fix the vehicle body longitudinal beam support block bracket in the length and width directions of the vehicle to ensure the stability of the connection and fixation.
[0044] Understandably, the corresponding number of fasteners 12 is three.
[0045] In some embodiments, see Figure 1 or Figure 3 Both the fulcrum hole 113 and the stud hole 115 are oval curved shapes, and the size of the fulcrum hole 113 is much larger than the size of the stud hole 115, so that the larger fulcrum hole 113 can be connected to the fulcrum on the skid body, and the smaller stud hole 115 can be connected to the stud hole on the longitudinal beam of the vehicle body.
[0046] For example, see Figure 3 The fulcrum hole 113 is a circular through hole, and two of the three stud holes 115 can be circular through holes, and one can be an elliptical through hole. Furthermore, one circular through hole can be located between another circular through hole and the elliptical through hole.
[0047] In some embodiments, the center of the fulcrum hole 113 does not coincide with the center of the bottom wall 111, which can effectively avoid local stress concentration, optimize the stress distribution of the structure, help disperse stress, and extend the service life of the structure. At the same time, it facilitates installation.
[0048] In some embodiments, see Figure 2 or Figure 3The multiple sidewalls 112 include a first sidewall 1121, a second sidewall 1122, and a third sidewall 1123 arranged sequentially, with the first sidewall 1121 and the third sidewall 1123 facing each other. These three sidewalls can cooperate with three fasteners 12 to support and fix the three fasteners 12.
[0049] As mentioned earlier, three stud holes 115 are sufficient to fix the vehicle body longitudinal beam support block bracket in both the length and width directions. Therefore, when setting the side walls, three side walls are sufficient. Compared to having four side walls, having three side walls is more advantageous in saving the manufacturing cost of the vehicle body longitudinal beam support block bracket.
[0050] In some embodiments, see Figure 1-3 The length of the second sidewall 1122 is greater than the length of the first sidewall 1121, and the length of the second sidewall 1122 is greater than the length of the third sidewall 1123. That is, the length of the second sidewall 1122 is greater than both the length of the first sidewall 1121 and the length of the third sidewall 1123. This allows the longer second sidewall 1122 to bear more external forces, avoiding excessive stress on the first sidewall 1121 and the third sidewall 1123. This prevents premature fatigue damage or deformation in local areas and improves the stability and reliability of the entire structure.
[0051] In some embodiments, see figures and Figure 3 The first sidewall 1121 and the second sidewall 1122 are smoothly connected, as are the second sidewall 1122 and the third sidewall 1123. When the longitudinal beam support block of the vehicle body is subjected to external force, stress will accumulate at the sharp edges or abrupt changes at the connection points, leading to excessive local stress, which reduces the fatigue life of the structure and may even cause cracks and fractures. Smooth transition connections allow for a more even distribution of stress, avoiding stress concentration, improving the reliability and durability of the structure, and reducing frictional resistance. Furthermore, the smooth transition design facilitates the use of continuous machining processes, such as milling and turning, reducing machining difficulty and time, and improving machining accuracy. During assembly, the smooth surfaces also make alignment and fit easier, improving assembly efficiency and quality.
[0052] In some embodiments, see Figure 1 The bottom wall 111 has an annular protrusion 116, which is disposed around the circumference of the fulcrum hole 113 and located on the side of the bottom wall 111 facing the side wall 112. By providing this annular protrusion 116, it can serve as a positioning structure, facilitating accurate assembly with the fulcrum on the skid. Simultaneously, it increases the contact area and friction with the fulcrum on the skid, making the connection between them more robust and reliable. Furthermore, the annular protrusion 116 can also act as a limit, preventing radial movement of the fulcrum on the skid.
[0053] In some embodiments, the thickness of the support block body 11 is greater than the thickness of the vehicle body longitudinal beam 3, which makes the support block body 11 stronger and easier to reuse in the future.
[0054] In some embodiments, the fastener 12 is a bolt.
[0055] For example, the bolt specification can be M10×1.25×16.
[0056] Based on the above description, during installation, an electric wrench is used to fix three bolts at the bottom of the longitudinal connection of the vehicle body, so that the longitudinal beam support bracket is installed on the longitudinal beam; during disassembly, an electric wrench is used to remove the three bolts one by one, so that the longitudinal beam support bracket can be removed. The longitudinal beam support bracket can be reused, and when storing, the support block body and bolts are placed separately.
[0057] In practical applications, this body longitudinal beam support bracket satisfies the vehicle's passability requirements without altering the vehicle's structure, thus reducing the need for structural modifications. Calculations show that compared to existing technologies, using this bracket significantly reduces per-vehicle costs, saving 3.28 yuan in manufacturing costs per vehicle, and provides a secure installation. Furthermore, it offers insights for future model designs, enabling the co-production of multiple models on the same production line. It is estimated that for each model adopted in the future, a one-time investment cost of 630,000 yuan will be saved; based on a 5-year lifespan for each model, subsequent maintenance costs can be reduced by 6.4 million yuan. Additionally, the installation of this body longitudinal beam support bracket effectively avoids interference with the side exhaust pipe hook position. Tests have verified that the installed body longitudinal beam support bracket is stable and reliable, without affecting equipment operation or employee work. It effectively meets on-site production needs and perfectly solves practical on-site problems.
[0058] Figure 4 A schematic diagram of a skid provided in an embodiment of this utility model is shown below. Figure 4 This utility model embodiment also provides a skid, which includes a vehicle body longitudinal beam support block bracket 1 and a skid body 2 as described in the above embodiments.
[0059] Among them, the longitudinal beam support block 1 of the vehicle body is fixed on the skid body 2.
[0060] Specifically, see Figure 4 The skid includes two vehicle body longitudinal beam support blocks 1, which are arranged opposite to each other on the skid body 2. The skid body 2 has a fulcrum 21, which can enter the fulcrum hole 113 of the vehicle body longitudinal beam support block 1. Through the cooperation of the fulcrum 21 and the fulcrum hole 113, the vehicle body longitudinal beam support block 1 can be fixed on the skid body 2.
[0061] Since the skid provided in this application adopts the vehicle body longitudinal beam support block bracket 1 as described in the above embodiments, it can solve the technical problems existing in the related art. That is, by setting the vehicle body longitudinal beam support block bracket provided in this utility model embodiment on the skid, the vehicle body longitudinal beam does not need to be drilled with large-sized fulcrum holes, thus improving the strength of the vehicle body longitudinal beam. At the same time, it greatly saves production costs.
[0062] In practical applications, such as Figure 5 As shown, where Figure 5 This is an application scenario diagram of a vehicle body longitudinal beam support bracket provided in an embodiment of the present utility model. The vehicle body longitudinal beam 3 is fixed on the skid body 2 by the vehicle body support bracket 1.
[0063] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "at least one" means one or more, and "more" means two or more, unless otherwise explicitly specified. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. In the description of this specification, references to the terms "some embodiments" or "exemplary" indicate that a specific feature, structure, material, or characteristic described in connection with the described embodiments or examples is included in at least one embodiment or example of this utility model.
[0064] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A body side rail block carrier characterized by, include: The support block body (11) and multiple fasteners (12); The support block body (11) includes a bottom wall (111) and a plurality of side walls (112) arranged around the bottom wall (111). The bottom wall (111) has a fulcrum hole (113), and the plurality of side walls (112) correspond one-to-one with the plurality of fasteners (12). Each of the sidewalls (112) has an extension (114) on the side away from the bottom wall (111) that extends radially along the fulcrum hole (113), the extension (114) having a stud hole (115) through which the fastener (12) can pass.
2. The vehicle body longitudinal beam support bracket according to claim 1, characterized in that, The fulcrum hole (113) and the stud hole (115) are both oval curves, and the size of the fulcrum hole (113) is much larger than the size of the stud hole (115).
3. The vehicle body longitudinal beam support block bracket according to claim 2, characterized in that, The fulcrum hole (113) is a circular through hole, and the center of the fulcrum hole (113) does not coincide with the center of the bottom wall (111).
4. The vehicle body longitudinal beam support block bracket according to claim 1, characterized in that, The plurality of sidewalls (112) include a first sidewall (1121), a second sidewall (1122) and a third sidewall (1123) arranged in sequence, with the first sidewall (1121) opposite to the third sidewall (1123).
5. The vehicle body longitudinal beam support block bracket according to claim 4, characterized in that, The length of the second sidewall (1122) is greater than the length of the first sidewall (1121), and the length of the second sidewall (1122) is greater than the length of the third sidewall (1123).
6. The vehicle body longitudinal beam support block bracket according to claim 4, characterized in that, The first sidewall (1121) and the second sidewall (1122) are smoothly connected, and the second sidewall (1122) and the third sidewall (1123) are smoothly connected.
7. The vehicle body longitudinal beam support bracket according to claim 1, characterized in that, The bottom wall (111) has an annular protrusion (116) which is disposed around the circumference of the fulcrum hole (113) and is located on the side of the bottom wall (111) facing the side wall (112).
8. The vehicle body longitudinal beam support block bracket according to claim 1, characterized in that, The thickness of the support block body (11) is greater than the thickness of the vehicle body longitudinal beam (3).
9. The vehicle body longitudinal beam support block bracket according to claim 1, characterized in that, The fastener (12) is a bolt.
10. A sled, characterized in that, The skid includes a vehicle body longitudinal beam support block bracket (1) and a skid body (2) as described in any one of claims 1-9; The vehicle body longitudinal beam support block bracket (1) is fixed on the skid body (2).