A body durability test fixture and device
By designing the first and second fixtures, and combining them with honeycomb mounting holes and a loading system, the problems of difficult and dangerous test bench construction in vehicle body durability testing were solved, achieving a simple, safe, and highly compatible vehicle body fixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GAC HONDA AUTOMOBILE CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-09
Smart Images
Figure CN224341255U_ABST
Abstract
Description
Technical Field
[0001] This utility model is used in the field of automobile durability testing, and in particular relates to a vehicle body durability testing fixture and device. Background Technology
[0002] Most passenger car bodies adopt a fully load-bearing structure. The static stiffness of the body generally includes torsional stiffness and bending stiffness. The body bears almost all torsional and bending loads during the use of passenger cars. The static stiffness of the body has a significant impact on the comfort, durability and dynamic response of the car. Therefore, the static stiffness of the passenger car body is the primary issue to be considered in the body structure design process.
[0003] In existing technologies, vehicle body durability testing typically involves supporting the entire vehicle with columns, connecting the tires to a hydraulic system below, and conducting a bench durability test under specified loads. This testing method has the following problems: 1. The bench setup and debugging are difficult, requiring numerous tooling devices; 2. It occupies a large vertical area, requiring the excavation of pits to bury the equipment underground, or fixing the vehicle more than 5 meters above the ground, posing significant safety hazards; 3. The tooling design is complex and expensive, with poor versatility.
[0004] In summary, the problems existing in the relevant technologies urgently need to be solved. Utility Model Content
[0005] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a vehicle body durability test fixture and device.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] Firstly, a vehicle body durability testing fixture includes:
[0008] The first fixture is used to support the side-lying vehicle body on the top, and the top of the first fixture is provided with a first mounting hole for fixed connection with the side wall of the vehicle body.
[0009] The second fixture is disposed to the side of the first fixture. The height of the second fixture is higher than that of the first fixture. The second fixture has a second mounting hole on the side facing the first fixture for fixed connection with the bottom of the side-lying vehicle body.
[0010] In conjunction with the first aspect, in some implementations of the first aspect, both the first fixture and the second fixture include a square box fixture, which is provided with honeycomb mounting holes.
[0011] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the honeycomb mounting holes include round holes and / or oblong holes.
[0012] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the square box fixture includes a first square box fixture, which is a hollow cuboid formed by splicing together an upper panel, a lower panel, a front panel, a rear panel, a left panel and a right panel. The upper panel, lower panel, front panel and rear panel are provided with honeycomb mounting holes, and the front panel and rear panel have openings that communicate with the inner cavity of the first square box fixture.
[0013] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the square box fixture includes a second square box fixture. The second square box fixture is formed by splicing an upper panel, a lower panel, a front panel, a rear panel, and a left panel to form a hollow cuboid shape. The upper panel, lower panel, front panel, rear panel, and left panel are provided with honeycomb mounting holes. The right end face of the second square box fixture is left empty to form an opening that communicates with the inner cavity of the second square box fixture.
[0014] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the second fixture includes a plurality of first square box fixtures and second square box fixtures, the plurality of second square box fixtures being spliced together along the height direction and connected to each other by fasteners provided in the honeycomb mounting holes; the plurality of first square box fixtures being disposed on the side of the second square box fixtures and connected to the second square box fixtures by fasteners provided in the honeycomb mounting holes.
[0015] In conjunction with the first aspect and the above-described implementations, some implementations of the first aspect further include a base plate having a certain thickness. The top of the base plate is provided with a T-shaped groove extending in the transverse or longitudinal direction. The T-shaped groove forms an opening on the end face of the base plate. The first fixture and the second fixture are connected to the base plate by fasteners provided in the T-shaped groove.
[0016] In a second aspect, a vehicle body durability testing apparatus includes a loading system and a vehicle body durability testing fixture as described in any implementation of the first aspect. The loading system includes an actuator bracket and an actuator, the actuator being disposed on the actuator bracket, and the actuator being used to apply a lateral force to a side-lying vehicle body.
[0017] In conjunction with the second aspect, some implementations of the second aspect also include a loading seat for mounting on the suspension of a side-lying vehicle body, wherein the actuator output is connected to the loading seat.
[0018] In combination with the second aspect and the above-described implementations, some implementations of the second aspect include multiple loading seats mounted on the side-lying vehicle body suspension, each of which is connected to an independent loading system.
[0019] One of the above technical solutions has at least one of the following advantages or beneficial effects: The technical solution of this utility model includes a first fixture and a second fixture for fixing the vehicle body for durability testing. The first fixture supports the side-lying vehicle body on top, and the second fixture supports the side-lying vehicle body from the side. During the vehicle body durability test, the entire vehicle is flipped 90° to one side and then fixed using the first and second fixtures; subsequently, a load test can be performed on the vehicle body from the side. The vertical height of this utility model is only the width of the vehicle plus the fixing fixture, resulting in a small vertical space occupation and making vehicle body fixing more convenient, simple, and safe.
[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0022] Figure 1 This is a first-view structural schematic diagram of an embodiment of the vehicle body durability testing device of this utility model;
[0023] Figure 2 This is a second-view structural schematic diagram of an embodiment of the vehicle body durability testing device of this utility model;
[0024] Figure 3 This is a third-view structural schematic diagram of an embodiment of the vehicle body durability testing device of this utility model;
[0025] Figure 4 This is a schematic diagram of an embodiment of the vehicle body durability testing fixture of this utility model. Detailed Implementation
[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0027] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0028] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.
[0029] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.
[0030] in, Figure 4 The reference direction coordinate system of this utility model embodiment is given below, in conjunction with Figure 4 The embodiments of this utility model will be described in the directions shown.
[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a vehicle body durability testing fixture, including a first fixture 100 and a second fixture 200. The first fixture 100 is used to support a side-lying vehicle body 300 on its top. The top of the first fixture 100 is provided with a first mounting hole for fixed connection with the side panel of the vehicle body 300, wherein the first mounting hole is used to arrange fasteners. For example, the first fixture 100 is fixed to the mounting hole of the vehicle side door by fasteners.
[0032] The second fixture 200 is disposed to the side of the first fixture 100, and the height of the second fixture 200 is greater than that of the first fixture 100. The second fixture 200 has a second mounting hole on the side facing the first fixture 100 for fixed connection with the bottom of the side-lying vehicle body 300. The second mounting hole is used to accommodate fasteners. For example, the second fixture 200 is fixed to the battery pack mounting hole of the side-lying vehicle body 300 by fasteners.
[0033] Combination Figures 1-4, in the technical solution of the present utility model, the fixing fixture for the 300-body durability test includes a first fixture 100 and a second fixture 200. Among them, the first fixture 100 is used to support the lying body 300 at the top, and the second fixture 200 is used to support the lying body 300 from the side. When conducting the 300-body durability test, the whole vehicle is flipped 90° to one side and then fixed by the first fixture 100 and the second fixture 200; then the body 300 can be loaded and tested from the side. The vertical height of the technical solution of the present utility model is only the vehicle width + the fixing fixture, with a small vertical occupied space, and the body 300 is fixed more conveniently, simply and safely.
[0034] The first fixture 100 and the second fixture 200 can be made of brackets or splicable modules. In some embodiments, see Figures 1-4 , both the first fixture 100 and the second fixture 200 include a square box fixture, and the square box fixture is provided with honeycomb-shaped mounting holes. The first fixture 100 and the second fixture 200 can be formed by splicing multiple square box fixtures. This block-type fixture design improves the utilization rate of the fixture; the square box fixture is provided with honeycomb-shaped mounting holes. This honeycomb-shaped mounting hole design enables the adjustable installation position of the fixture. It improves the usage rate of the test fixture and reduces costs, and can be compatible with the installation of bodies 300 with different parameters. Moreover, it has strong structural rigidity, is stable and reliable, and ensures the stiffness and strength of the installation points. It makes the rigidity of the installation points closer to the rigidity of the body 300 installation points, and can conduct large-input durability tests. It can be compatible with various types of bodies 300, has a more compact structure, small space occupancy, is convenient to build, and is stable and reliable.
[0035] The square box fixture is in the shape of a hollow cuboid, and the size of the square box is adjustable, with strong versatility. The honeycomb-shaped mounting holes include round holes and / or waist-shaped holes, which can allow fasteners such as bolts to pass through and be locked during installation.
[0036] In some embodiments, see Figure 4 , the square box fixture includes a first square box fixture 400, which is formed by splicing an upper panel, a lower panel, a front panel, a rear panel, a left panel and a right panel into a hollow cuboid shape. The upper panel, the lower panel, the front panel, the rear panel, the left panel and the right panel have a certain thickness, so that the spliced square box fixture has sufficient strength. The upper panel, the lower panel, the front panel and the rear panel are provided with honeycomb-shaped mounting holes, and the front panel and the rear panel are provided with openings communicating with the inner cavity of the first square box fixture 400. The front panel and the rear panel are in a shape similar to a double rectangle. When the square box fixtures are spliced with each other or connected to install brackets, operators can realize the connection of fasteners in the honeycomb-shaped mounting holes through the openings.
[0037] In some embodiments, see Figure 4The square box fixture includes a second square box fixture 500, which is a hollow cuboid formed by splicing together a top panel, a bottom panel, a front panel, a rear panel, and a left panel. The top panel, bottom panel, front panel, rear panel, and left panel are provided with honeycomb-shaped mounting holes. The right end face of the second square box fixture 500 is left open, forming an opening that communicates with the inner cavity of the second square box fixture 500. When the square box fixtures are spliced together or connected to mounting brackets, the operator can connect fasteners through the opening in the honeycomb-shaped mounting holes.
[0038] In some embodiments, see Figure 4 The first fixture 100 adopts a first square box fixture 400, and the second fixture 200 includes multiple first square box fixtures 400 and second square box fixtures 500. The multiple second square box fixtures 500 are spliced along the height direction and connected to each other by fasteners provided in honeycomb mounting holes. Multiple first square box fixtures 400 are disposed on the side of the second square box fixtures 500 and connected to the second square box fixtures 500 by fasteners provided in honeycomb mounting holes. In this embodiment, the second fixture 200 is formed by splicing multiple first square box fixtures 400 and second square box fixtures 500, which can meet the positioning needs of the vehicle body 300 of different models and wheels.
[0039] In some embodiments, see Figure 1 The vehicle body durability testing fixture also includes a base plate 600, which has a certain thickness. The top of the base plate 600 has a T-shaped groove 601 extending laterally or longitudinally. The T-shaped groove 601 forms an opening at the end face of the base plate 600. The first fixture 100 and the second fixture 200 are connected to the base plate 600 by fasteners provided in the T-shaped groove 601. The first fixture 100 and the second fixture 200 can be flexibly adjusted in their mounting position on the base plate 600 using fasteners provided in the T-shaped groove 601, making fixing convenient, simple, safe, and highly versatile.
[0040] See Figure 1 ,picture, Figure 3 This utility model also provides a vehicle body durability testing device, including a loading system and a vehicle body durability testing fixture as described in any of the above embodiments. The loading system includes an actuator bracket 701 and an actuator 702. The actuator 702 can be hydraulically or electrically driven and is mounted on the actuator bracket 701. The actuator 702 is used to apply a lateral force to the side-lying vehicle body 300. During the vehicle body 300 durability test, the entire vehicle is flipped 90° to one side and then fixed using the first fixture 100 and the second fixture 200. The vehicle body 300 can then be loaded and tested from the side using the loading system. This utility model abandons the existing technology of vertical loading; the vertical height is only the vehicle width plus the fixing fixture, resulting in a small vertical space occupation and making the fixing of the vehicle body 300 more convenient, simple, and safe.
[0041] Further, see Figure 1 The vehicle body durability testing device also includes a loading seat 703, which is used to mount the suspension of the side-lying vehicle body 300 and to simulate the wheels of the vehicle body 300. The output end of the actuator 702 is connected to the loading seat 703. During operation, the load output by the actuator 702 is transmitted to the vehicle body 300 through the loading seat 703.
[0042] In some embodiments, see Figure 1 The vehicle body durability testing device includes multiple loading seats 703 mounted on the side-lying vehicle body 300 suspension, each loading seat 703 being connected to an independent loading system to apply synchronous or asynchronous loads.
[0043] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0044] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A vehicle body durability testing fixture, characterized in that, include: The first fixture is used to support the side-lying vehicle body on the top, and the top of the first fixture is provided with a first mounting hole for fixed connection with the side wall of the vehicle body. The second fixture is disposed to the side of the first fixture. The height of the second fixture is higher than that of the first fixture. The second fixture has a second mounting hole on the side facing the first fixture for fixed connection with the bottom of the side-lying vehicle body.
2. The vehicle body durability testing fixture according to claim 1, characterized in that, Both the first fixture and the second fixture include a square box fixture, which is provided with honeycomb mounting holes.
3. The vehicle body durability test fixture according to claim 2, characterized in that, The honeycomb mounting holes include round holes and / or oblong holes.
4. The vehicle body durability testing fixture according to claim 2, characterized in that, The square box fixture includes a first square box fixture, which is a hollow cuboid formed by splicing together an upper panel, a lower panel, a front panel, a rear panel, a left panel, and a right panel. The upper panel, lower panel, front panel, and rear panel are provided with honeycomb mounting holes, and the front panel and rear panel have openings that communicate with the inner cavity of the first square box fixture.
5. The vehicle body durability testing fixture according to claim 4, characterized in that, The square box fixture includes a second square box fixture, which is a hollow cuboid formed by splicing together an upper panel, a lower panel, a front panel, a rear panel, and a left panel. The upper panel, lower panel, front panel, rear panel, and left panel are provided with honeycomb mounting holes. The right end face of the second square box fixture is left empty, forming an opening that communicates with the inner cavity of the second square box fixture.
6. The vehicle body durability testing fixture according to claim 5, characterized in that, The second fixture includes a plurality of first square box fixtures and second square box fixtures. The plurality of second square box fixtures are spliced together along the height direction and connected to each other by fasteners provided in the honeycomb mounting holes. The plurality of first square box fixtures are disposed on the side of the second square box fixtures and connected to the second square box fixtures by fasteners provided in the honeycomb mounting holes.
7. The vehicle body durability testing fixture according to claim 1, characterized in that, It also includes a base plate with a certain thickness. The top of the base plate is provided with a T-shaped groove extending in the horizontal or vertical direction. The T-shaped groove forms an opening on the end face of the base plate. The first fixture and the second fixture are connected to the base plate by fasteners provided in the T-shaped groove.
8. A vehicle body durability testing device, characterized in that, The invention includes a loading system and a vehicle body durability test fixture as described in any one of claims 1 to 7. The loading system includes an actuator bracket and an actuator, the actuator being disposed on the actuator bracket and used to apply a lateral force to a side-lying vehicle body.
9. The vehicle body durability testing apparatus according to claim 8, characterized in that, It also includes a loading seat for mounting on the suspension of a side-lying vehicle body, and the actuator output is connected to the loading seat.
10. The vehicle body durability testing apparatus according to claim 9, characterized in that, It includes multiple loading seats mounted on the side-lying vehicle body suspension, each of which is connected to an independent loading system.